CN101265857B - Refrigerating apparatus and fluid machine therefor - Google Patents

Abstract

A complex fluid machine has an expansion-compressor device, a pump, and a motor generator, wherein the expansion-compressor device, the pump, and the motor generator are operatively connected and arranged in series, and a power transmitting device for disconnecting the pump from the motor generator, when the expansion-compressor device is driven by the motor generator so as to be operated as a compressor device.

Description

Chiller plant and be used for the fluid machinery of this equipment

The application on October 31st, 2005 to Department of Intellectual Property submit to, application number is 200510118770.7, denomination of invention is divided an application for the patent application of " chiller plant and be used for the fluid machinery of this equipment ".

Technical field

The present invention relates to have the refrigeration cycle that is used to carry out cooling down operation and be used for giving birth to the chiller plant that thermic devices is collected the rankine cycle of used heat from for example internal-combustion engine etc.The invention further relates to the compound fluid machinery that will be applied to chiller plant, wherein fluid machinery has the effect of the compressor set that is used for compressing and pumps working fluid and is used for effect by the expansion gear that makes the working fluid expansion output mechanical energy of working in rankine cycle.The invention further relates to the method for operating that is used to control chiller plant, relate in particular to the method for operating that stops rankine cycle.

Background technique

Wherein the integrally formed compound fluid machinery of compressor set, expansion gear, drive motor and pump is well known in the art, for example shown in the Japan Patent publication No.H8-86289 (rotating machinery of Scroll piston is shown).In above-mentioned compound fluid machinery, each unit Series arranges, and (compressor set is by the magnet coupling device or be connected directly to expansion gear) coaxially to each other.Compressor set is used for the refrigeration agent of compression refrigeration circulation, and expansion gear is handled by the working fluid in the rankine cycle.

According to above-mentioned fluid machinery, in initial (beginning) stage of expansion gear, expansion gear drives a period of time by drive motor, becomes stable up to the operation of expansion gear.Then, expansion gear is driven by making working fluid (by the burner heating, the to be transformed into the high pressure-temperature working fluid) expansion in the rankine cycle, thereby it is by the driving force rotation of himself.Driving force directly or indirectly (passing through magnet coupling) is delivered to compressor set, to operate on it, makes working fluid be compressed.Pump is also handled by the driving force that produces at the expansion gear place, so that the working fluid cycles in the rankine cycle.

As mentioned above, giving birth to thermic devices (for example burner) is to need especially in above-mentioned prior art equipment.The present inventor has developed the chiller plant that is used for Motor Vehicle, and wherein the used heat from internal-combustion engine is collected, and is used to handle rankine cycle, thereby considers grovel heating (grovelwarming), can reduce energy consumption.

Be used under the situation of Motor Vehicle at above-mentioned prior art equipment, wherein the used heat from motor is used as thermal source (replacement burner), when the waste heat from motor can not obtain driving force by expansion gear more after a little while.During this period, compressor set can be handled by drive motor.Yet in this case, pump is also handled by drive motor with compressor set, has reduced the efficient of drive motor operate compressor.

On the other hand, not under the situation that (not to require the cooling down operation of refrigeration cycle) in the operation of compressor set, even when the used heat that can fully obtain from motor, can stop the operation of expansion gear yet.As a result, used heat can not be effective to collect the energy that expansion gear produces.

According to the fluid machinery of another prior art, for example as shown in Japan Patent publication No.2004-232492, fluid machinery has the function of compressor and the function of expansion gear equally.According to this prior art fluid machinery, wherein as the flow direction of the working fluid under the situation of compressor device works with opposite as the flow direction of the working fluid under the situation of expansion gear work.First fluid (discharging) mouth and first (discharging) control valve unit are set in the fluid machinery, make compressed working fluid be pumped out by first fluid (discharging) mouth.And second fluid flow port (inlet) and second (inlet) control valve unit are set in the fluid machinery, make the high pressure-temperature working fluid be supplied in the expansion gear.When fluid machinery was operated as compressor set, second fluid flow port (inlet) was closed by second control valve unit (electrically operated on-off valve device).

Yet according to above-mentioned fluid means, the volume of second fluid flow port becomes the dead volume (dead volume: thereby can not be pumped out the volume of the working fluid of staying the working room during squeeze operation) of the squeeze operation that is used for fluid machinery inevitably.This is a problem, particularly, when in order to allow the extensive work fluid to flow into the working room of expansion gear the internal diameter of second fluid flow port being designed to when big, or is designed to hour when the amount of the working fluid that pumps from compressor set for each rotation.

According to another prior art chiller plant, for example as shown in Japan Patent publication No.S56-43018, chiller plant is used for Motor Vehicle, wherein compressor set is connected with expansion gear, so that compressor set is by drive force, wherein said driving force is produced by the expansion gear that is used to from the used heat of motor is handled.Yet, in this chiller plant, when during used heat can not the warm-up operation at motor, being collected, can not carry out cooling down operation.Particularly, even after parking under the burning sun of vehicle in summer, require under the situation of big cooling capacity in order to cool off vehicle interior fast, as long as can not collect sufficient used heat from motor, then cooling down operation is exactly impossible.

Therefore, the present inventor has proposed a kind of chiller plant that is used for Motor Vehicle in its Japanese patent application No.2004-227006, wherein, compressor set separates with expansion gear, compressor set is driven by motor or drive motor, and is used for producing the pump that electric power and/or driving are used to make the working fluid cycles of rankine cycle from the energy of expansion gear.According to the chiller plant that proposes above, though when not having used heat the cooling down operation possibility that also becomes, and when having sufficient waste heat, can be by rankine cycle harvest energy effectively.

Yet, according to the chiller plant that proposes above, consider environmental protection, if chiller plant is applied to have the vehicle of idling shut-down operation, when stopping temporarily, power operation can not carry out cooling down operation.

According to another prior art, for example, as shown in the Japan Patent publication No.2004-108220, electric power produces at the generator place that is driven by expansion gear, and wherein said expansion gear will be handled in rankine cycle, to collect used heat.

Motor generator set is handled by no sensor control method usually, according to the method, and the rotatable phase of prediction generator, rather than use phase detector, thus realize generator cheaply.

The operation that can not prevent generator in this no sensor control method fully becomes out of control, the result, and its normal operating state is left in operation.Therefore, in the operation of generator (driving) when leaving its normal operating state by expansion gear, the operation of generation outage machine usually.Then, owing to be removed,, and can exceed and allow rotational level so the rotation of expansion gear can be accelerated to the load of expansion gear.If this situation takes place, then noise may produce at the expansion gear place, and depends on the circumstances, and expansion gear may be damaged.And, may produce high voltage at the generator place, cause related electric part or the impaired problem of device possibility.

Even the operation of generator by situation from the SC sigmal control of position sensor under, be out of order if be used for the controller (transducer) of generator, then the operation of generator also may become out of control, and can quicken and damage the rotation of expansion gear.

In view of the above problems, make the present invention.

Summary of the invention

Therefore, an object of the present invention is to provide a kind of chiller plant and will be applied to the fluid machinery of chiller plant, wherein pump is driven by expansion gear, eliminate the influence of pump during as compressor device works at fluid machinery, even and when not needing the cooling down operation of compressor set, also can effectively collect used heat.

Another object of the present invention provides a kind of fluid machinery that is used for chiller plant, wherein reduces dead volume during as compressor device works at fluid machinery.

A further object of the present invention provides a kind of chiller plant, wherein collects used heat from the living thermic devices such as internal-combustion engine that for example are used for Motor Vehicle, even and also can carry out cooling down operation continuously when the operation of giving birth to thermic devices stops temporarily.Even interim and when greatly improving the requiring of cooling down operation, chiller plant also can provide cooling down operation.

Another purpose of the present invention provides the method for operating that a kind of used heat that is used for internal-combustion engine utilizes equipment and controls described equipment, and wherein safety stops the operation of expansion gear, to prevent that expansion gear quickens when the operation of motor generator set becomes out of control.

Description of drawings

According to following detailed description of making referring to accompanying drawing, it is more obvious that above and other objects of the present invention, characteristic and advantage will become.In the accompanying drawings:

Fig. 1 is the schematic cross section that illustrates according to the compound fluid machinery of the first embodiment of the present invention;

Fig. 2 is the schematic representation according to first embodiment's system architecture;

Fig. 3 is the schematic cross section of modification that first embodiment's compound fluid machinery is shown;

Fig. 4 is the schematic cross section that illustrates according to the modification of second embodiment's compound fluid machinery;

Fig. 5 to Fig. 9 is the schematic representation that illustrates according to second embodiment's system architecture, wherein is illustrated in the refrigeration agent that flows in each mode of operation;

Figure 10 is the cross-sectional view of amplification that the control valve unit of a third embodiment in accordance with the invention is shown;

Figure 11 and 12 is the cross-sectional views that illustrate according to the amplification of the control valve unit of the 3rd embodiment's fluid machinery;

Figure 13 is the schematic representation that illustrates according to the 3rd embodiment's system architecture, wherein uses the fluid machinery of Figure 10;

Figure 14 to Figure 16 is the cross-sectional view that illustrates respectively according to the amplification of the control valve unit of the fluid machinery of the 3rd embodiment's modification;

Figure 17 is the schematic cross section that the compound fluid machinery of a fourth embodiment in accordance with the invention is shown;

Figure 18 is the schematic cross section that compound fluid machinery according to a fifth embodiment of the invention is shown;

Figure 19 is the schematic representation that illustrates according to the 6th embodiment's system architecture;

Figure 20 to 24 is the schematic representation that illustrate according to above-mentioned the 6th embodiment's system architecture, wherein is illustrated in the refrigeration agent that flows in each mode of operation;

Figure 25 is the schematic representation that illustrates according to the 7th embodiment's system architecture;

Figure 26 is the schematic representation that illustrates according to the 8th embodiment's system architecture;

Figure 27 to 31 is the schematic representation that illustrate according to above-mentioned the 8th embodiment's system architecture, wherein is illustrated in the refrigeration agent that flows in each mode of operation;

Figure 32 is the schematic representation that illustrates according to the 9th embodiment's system architecture;

Figure 33 is the schematic cross section that illustrates according to the 9th embodiment's compound fluid machinery, and described compound fluid machine applications is in the system of Figure 32;

Figure 34 is the schematic representation that the circuit of the controller in the system that is ready to use in Figure 32 is shown;

Figure 35 is the flow chart of operation that is used to control the system of Figure 32;

Figure 36 is the time diagram of operation that is used to illustrate the system of Figure 32;

Figure 37 is the schematic cross section that illustrates according to the compound fluid machinery of above-mentioned the 9th embodiment's modification;

Figure 38 is the schematic representation that illustrates according to the circuit of the controller of above-mentioned the 9th embodiment's modification and motor generator set;

Figure 39 is the flow chart of operation that is used to control the system of the Figure 32 that is revised by Figure 38;

Figure 40 is the schematic representation that illustrates according to the tenth embodiment's system architecture;

Figure 41 is the flow chart of operation that is used to control the system of Figure 40;

Figure 42 is the schematic representation that illustrates according to the 11 embodiment's system architecture;

Figure 43 is the flow chart of operation that is used to control the system of Figure 42;

Figure 44 is the flow chart of operation of modification that is used to control the system of Figure 42;

Figure 45 is the schematic representation that illustrates according to the system architecture of the 11 embodiment's modification (Figure 42);

Figure 46 is the flow chart of operation that is used to control the system of Figure 45; And

Figure 47 is the flow chart of operation of another modification that is used to control the system of Figure 42.

Embodiment

(first embodiment)

First embodiment relates to motor vehicle air conditioning equipment, and compound fluid machinery 100 wherein of the present invention is applied to have the refrigeration cycle 30 of rankine cycle 40.

At first, referring to Fig. 1 the compound fluid mechanical structures is described.Compound fluid machinery 100 comprises the inflate compression machine 110 that not only has the function of compressor set but also have the function of expansion gear, the motor generator set 120 and the refrigerated medium pump 130 that had not only had the function of motor generator set but also had electric motors function.

Inflate compression machine 110 has the structure identical with known scroll compressor, and comprise the fixedly spool 112 that is arranged between front case 111a and the electric machine casing 121, in the face of fixing spool 112 and about the removable spool 113 of fixedly spool 112 rotations, the floss hole 115 that is used to the V of working room is communicated with hyperbaric chamber 114, enter the mouth 116 and be used to open and close 116 the control valve unit 117 of entering the mouth.

The fixing spool 112 vortex spool cover 112b that has substrate 112a and extend to removable spool 113 from substrate 112a, and removable spool 113 has the vortex spool for the treatment of to be connected with vortex spool cover 112b and mesh and overlaps the substrate 113a that 113b and top formation vortex spool overlap 113b.The V of working room is fixedly forming between spool 112 and the removable spool 113, and its vortex spool cover 112b and 113b operationally contact with each other.When removable spool 113 during about 112 rotations of fixing spool (moving around fixing spool) changes the volume of (expanding or the contraction) V of working room.

Axle 118 is crankshafts, is rotatably supported by the bearing 118c that is fixed to electric machine casing 121, and has crank portion 118a at an one axle head, and wherein crank portion 118a is about the rotating center off-centre of axle 118.Crank portion 118a is connected to removable spool 113 via axle bush 118b and bearing 113c.

The anti-locking mechanism 119 of rotation is arranged between removable spool 113 and the electric machine casing 121, makes that removable spool 113 rotates a circle around crank portion 118a when axle 118 rotates a circle.That is, prevent the rotation on its axle of removable spool 113, but rotate around the rotating center (with orbiting) of axle 118.When axle 118 rotated on direction forward, along with the working room moves towards its center from the outside of removable spool 113, the volume of the V of working room became less.On the other hand, when axle 118 rotated in the opposite direction, along with the working room is outside mobile towards it from the center of removable spool 113, the volume of the V of working room became bigger.

Floss hole 115 is formed on the central part office of substrate 112a, make as compressor device works (after this at inflate compression machine 110, being referred to as compact model) in time, become the V of working room of its minimum volume and has been communicated with hyperbaric chamber 114 in being formed on front shell 111a, thus discharging (pumping) compressed refrigeration agent (compressed working fluid).Inlet 116 is formed on (near floss hole 115) among the substrate 112a similarly, so that hyperbaric chamber 114 is with at inflate compression machine 110 as expansion gear work (after this, be referred to as expansion mechanism) time become its minimum volume the V of working room be communicated with, thereby will be fed to high pressure, high temperature refrigerant in the hyperbaric chamber 114 (that is, overheated gasified refrigerant) and import the V of working room.

Hyperbaric chamber 114 has the level and smooth function of pulsation that makes the refrigeration agent that pumps from floss hole 115, and the high-pressure mouth 111c that is connected to heating equipment 43 and condenser 31 is formed on 114 places, hyperbaric chamber.

The low pressure port 121a that is connected to the vaporizer 34 and second bypass channel 42 is formed in the electric machine casing 121, and the inside by electric machine casing 121 is communicated with a fixing side of spool 112.

Control valve unit 117 comprises the floss hole control valve unit with escape cock 117a, the inlet valve device with valve body 117d, solenoid valve 117h etc.Escape cock 117a is arranged in the hyperbaric chamber 114, and is the leaf valve shape, is used for preventing that the refrigeration agent that pumps from floss hole 115 from 114 flowing back to the V of working room from the hyperbaric chamber.Stopper 117b ends valve plate, is used for the maximum opening degree of limiting emission valve 117a.Escape cock 117a and stopper 117b are fixed to substrate 112a by bolt 117c.

Valve body 117d is switching valve (switching valve), is used for switching to expansion mechanism by opening or closing inlet 116 from compact model, and vice versa.The back of valve body 117d inserts the back pressure chamber 117e that is formed among the front shell 111a slidably to part.Spring 117f (biased member) is arranged on the back and presses in the inside of chamber 117e, is used at the valve closing direction, promptly partly closes bias voltage valve body 117d on the direction of inlet 116 at the forward direction of valve body 117d.Aperture 117g is formed on the passage place that makes the back press chamber 117e to be connected with hyperbaric chamber 114 among the front shell 111a, and wherein aperture 117g has certain flow resistance.

Solenoid valve 117h is a control valve, is used for pressing the connected state between the 117e of chamber to control the pressure that chamber 117e is pressed in the back by control low voltage side (low pressure port 121a) and back.Control valve 117h is handled by the electronic control unit (not shown).

When opening solenoid valve 117h, the pressure that is lower than in the hyperbaric chamber 114 is pressed the pressure among the 117e of chamber to reduce to become in the back.Valve body 117d moves on the right-hand side of Fig. 1, and pressure spring 117f is to open inlet 116.The pressure loss at the 117g place of eating dishes without rice or wine is very high, thereby 114 refrigerant flows that flow into back pressure chamber 117e littlely can be ignored from the hyperbaric chamber.

When closing solenoid valve 117h, the back is pressed the pressure among the 117e of chamber to become and is equated by the pressure in the hyperbaric chamber 114 of the 117g that eats dishes without rice or wine.Then, valve body 117d moves on the left-hand side of Fig. 1 by the spring force of spring 117f, to close inlet 116.As above, chamber 117e, spring 117f are pressed in valve body 117d, back, eat dishes without rice or wine 117g and solenoid valve 117h formation pivot shape dynamoelectric switching valve, to open and close inlet 116.Inlet 116 and valve body 117d form COMM communication, are used for the fluid passage between switch operating chamber and the hyperbaric chamber 114.

Motor generator set 120 comprise stator 122 and in the inside of stator 122 rotor rotated 123, and be contained in the electric machine casing 121 that is fixed to fixing spool 112 (in the low-voltage space of fluid machinery 100).Stator 122 is the stator coils that twine with electric wire, and is fixed to the interior perimeter surface of electric machine casing 121.Rotor 123 is magnet rotors that permanent magnet wherein is set, and is fixed to motor shaft 124.One end of motor shaft 124 is connected to the axle 118 of inflate compression machine 110, and hole 124a is formed on the other end of motor shaft 124, and wherein the pump shaft 134 of refrigerated medium pump 130 is operably connected with described hole.

When electric power by changer 12 when thereby battery 13 is fed to the rotation of stator 122 rotors 123, motor generator set 120 is used to drive inflate compression machine 110 (as compressor device works) as motor (motor) work.As described below, when rotor 123 rotations (in the opposite direction), motor generator set 120 also as motor (motor) work, is used to drive refrigerated medium pump 130.When driving force input that the moment of torsion that is used for rotating (in the opposite direction) rotor 123 is produced with its expansion mechanism by inflate compression machine 110, motor generator set 120 is further used as generator (motor generator set) work, is used to produce electric power.The electric power of Huo Deing charges into battery 13 by changer 12 like this.

Refrigerated medium pump 130 is arranged in the adjacent position of motor generator set 120, and at the opposite side place of inflate compression machine 110, and be contained in the pump case that is fixed to electric machine casing 121.Identical with the mode of inflate compression machine 110, refrigerated medium pump 130 comprises: fixedly spool 132, have substrate 132a and spool cover 132b; And removable spool 133, have substrate 133a and spool cover 133b.Fixedly spool 132 is fixed to pump case 131, and removable spool 133 is arranged in by pump case 131 and in the space that fixedly spool 132 limits.Removable spool 133 rotates with orbiting, and prevents that by rotation locking mechanism 135 prevents the rotation on it.

Pump case 131 be formed with the inlet 131a, described inlet 131a is connected to gas-liquid separator 32, and with a side of removable spool 133 and the internal communication of pump case 131.Fixedly spool 132 is formed with outlet 132c, and wherein the P of working room that is formed by fixing and removable spool 132 and 133 is communicated with heating equipment 43 (describing after a while) by described outlet.

Pump shaft 134 is supported rotationally by the bearing 134c that is fixed to pump case 131, and has crank portion 134a at an one axle head, and wherein crank portion 134a is about the rotating center off-centre of pump shaft 134.Crank portion 134a is connected to removable spool 133 via axle bush 134b and bearing 133c.Another axle head of pump shaft 134 is formed with small diameter portion 134d, the diameter of described small diameter portion is littler than the diameter of another part (by the part of bearing 134c support) of pump shaft 134, and small diameter portion 134d inserts the hole 124a of the axle head that is formed on motor shaft 124.

Overrunning clutch 140 is arranged between motor shaft 124 and the pump shaft 134 (small diameter portion 134d).When motor shaft 124 (on the sense of rotation at expansion mechanism) rotation in the opposite direction, overrunning clutch 140 and pump shaft 134 (small diameter portion 134d) engagement are so that pump shaft 134 rotations.On the other hand, when motor shaft 124 in (on the sense of rotation at compact model) when rotation on the direction forward, overrunning clutch 140 no longer meshes with pump shaft 134 (small diameter portion 134d), so that pump shaft 134 disconnects (no longer making pump shaft 134 rotations) from motor shaft 124.

Shaft seal 150 is arranged between the small diameter portion 134d of pump case 131 and pump shaft 134, with the inner space of (space of low voltage side is communicated with inlet 131a from removable spool 133) sealing electric generator 120 from the inner space of refrigerated medium pump 130.

Above-mentioned compound fluid machinery 100 is integrated into the refrigerant cycle 30 with rankine cycle 40, to form refrigeration agent equipment 1 (motor vehicle air conditioning equipment).More specifically, inflate compression machine 110 (compressor set in the compact model) is integrated into refrigeration cycle 30, and inflate compression machine 110 (expansion gear in the expansion mechanism) and refrigerated medium pump 30 are integrated into rankine cycle 40.Referring to Fig. 2 chiller plant 1 is described.

Refrigeration cycle 20 is sent to high temperature side with heat from low temperature side, and utilizes its low warm (coldheat) and elevated temperature heat (hot heat) to carry out air conditioning and operate.Refrigeration cycle 30 comprises inflate compression machine 110, condenser 31, gas-liquid separator 32, dropping equipment 33, vaporizer 34 etc., and wherein these parts connect with circuit.

Condenser 31 is the heat exchangers that are connected the refrigeration agent waste side of the inflate compression machine 110 that is in the compact model, and is used to cool off high pressure, high temperature refrigerant, thereby makes condensation of refrigerant (liquefaction).Fan 31a is towards condenser 31 drum cooling airs (outside air).

Gas-liquid separator 32 is to be used to make the receiver that separates with liquid phase refrigerant in condenser 31 place's condensed refrigerant and vapor phase refrigerant, to flow out liquid phase refrigerant.Dropping equipment 33 is temperature dependent form expansion valves, be used to make liquid phase refrigerant step-down and the expansion that separates at gas-liquid separator 32 places, wherein the opening degree of valve is controlled, so that refrigeration agent is depressurized in the constant enthalpy mode, and the degree of superheat of the refrigeration agent that will suck the inflate compression machine 110 in the compact model is controlled to be predetermined value.

Vaporizer 34 is heat exchangers, be used for carrying out the heat absorption operation by making by the refrigeration agent evaporation of dropping equipment 33 step-downs, with the air (outside air) of cooling outside vehicle or the air (inner air) of vehicle interior, wherein fan 34a makes described air pass through vaporizer.Safety check 34b is arranged on the refrigerant outlet side of vaporizer 34, is used to allow refrigeration agent only to flow to inflate compression machine 110 from vaporizer 34.

Rankine cycle 40 produces the driving power that is used for vehicle from the used heat harvest energy that produces at motor 10 (in the driving force of the expansion mechanism of inflate compression machine 110).Condenser 31 both had been used in the refrigeration cycle 30 usually, was used in again in the rankine cycle 40.First bypass channel 41 is arranged between gas-liquid separator 32 and the bonding point A, and described bonding point is the intermediate point between condenser 31 and the inflate compression machine 110, and wherein first bypass channel 41 is walked around condenser 31.First bypass channel 42 is arranged between bonding point B and the C, and wherein bonding point B is the intermediate point between inflate compression machine 110 and the safety check 34b, and bonding point C is the intermediate point between condenser 31 and the bonding point A.Rankine cycle 40 forms in the following manner.

The refrigerated medium pump 130 of compound fluid machinery 100 and safety check 41a are arranged in first bypass channel 41, and wherein safety check 41a allows refrigeration agent only to flow to refrigerated medium pump 130 from gas-liquid separator 32.Heating equipment 43 is arranged between bonding point A and the inflate compression machine 110.

Heating equipment 43 is heat exchangers, is used for the heat exchange heating and cooling agent between the engine cooling water (hot water) of the engine cooling circuit 20 by the refrigeration agent supplied with by refrigerated medium pump 130 and motor 10.Three-way valve 21 is arranged in the hot water circuit 20.Heating equipment bypass channel 21a is arranged between three-way valve 21 and the motor 10.Three-way valve 21 is circulation mode (hot water bypass mode) not from the hot water circuit mode switching to water, and vice versa, so that control is from the hot water supply of motor 10 or do not supply with heating equipment 43.The handover operation of three-way valve 21 is controlled by electronic control unit (not shown).

Alternator 11 is arranged on motor 10 places, and wherein alternator 11 is driven by motor 10, and the electric power that produces at alternator 11 places charges into battery 13 by changer 12.

Water pump 22 is the mechanical pump that is driven by motor 10 for instance, be arranged in the hot water circuit 20, be used to make the engine cooling water cycle, and radiator 23 is heat exchangers, is used to make engine cooling water and the outside air that is used for the cooled engine cooling water to carry out heat exchange.

Safety check 42a is arranged in second bypass channel 42, is used to allow refrigeration agent only to flow to the inlet side of condenser 31 from inflate compression machine 110.Switch valve 44 is arranged in the passage between bonding point A and the C.Valve 44 is solenoid valves, is used to open or close passage, and by electronic control unit (not shown) control.

Rankine cycle 40 is formed by gas-liquid separator 32, first bypass channel 41, refrigerated medium pump 30, heating equipment 43, inflate compression machine 110, second bypass channel 42, condenser 31 etc.

To the operation and the effect of first embodiment's compound fluid machinery 100 be described.

(compact model)

In compact model, when needing the cooling down operation of refrigeration cycle, motor generator set 120 is as motor generator set work, rotating force (on direction forward) is applied in to motor shaft 124, so that removable spool 113 rotations of inflate compression machine 110, thereby refrigeration agent is inhaled into refrigeration cycle and is compressed therein.

More specifically, switch valve 44 is opened by the control unit (not shown), and prevents that by three-way valve 21 engine cooling water from flowing into heating equipment 43.Close solenoid valve 117h by valve body 117d, closing inlet 116, and electric power is fed to the stator 122 of motor generator set 120 by changer 12 from battery 13, so that motor shaft 124 rotations.

In this operation period, identical with the mode of known spool type compressor, inflate compression machine 110 is inhaled refrigeration agent from low pressure port 121a, in the V of working room with its compression, in the future the compressed refrigerated medium pump of self-discharging mouth 115 is engaged in this profession in the hyperbaric chamber 114, and will be discharged into condenser 31 from the compressed refrigeration agent of high-pressure mouth 111c.

Circulate the refrigeration cycle 30 that the low pressure port 121a by heating equipment 43, switch valve 44, condenser 31, gas-liquid separator 32, dropping equipment 33, vaporizer 34, safety check 34b, inflate compression machine 110 forms from the refrigeration agent of high-pressure mouth 111c discharging, thereby carry out cooling down operation by the heat absorption operation of vaporizer 34.Because engine cooling water (hot water) do not flow in the heating equipment 43, thus refrigeration agent in heating equipment 43, be not heated, thereby heating equipment 43 is only as the part work of coolant channel.

Because pump shaft 134 (small diameter portion 134d) is owing to overrunning clutch 140 no longer meshes with motor shaft 124, so refrigerated medium pump 130 is not worked under this pattern.

(expansion mechanism)

In expansion mechanism, when the cooling down operation that no longer needs refrigeration cycle 30, and can be when motor 10 obtains fully many used heat (when the temperature of engine cooling water abundant when high), high pressure superheater refrigeration agent by heating equipment 43 heating is supplied with in the inflate compression machine 110, so that the refrigeration agent in the expansion gear 110 expands.Removable spool 113 rotates by the expansion of refrigeration agent, to obtain to be used to make the driving force (mechanical energy) of motor shaft 124 rotations.The driving force rotation of the rotor 123 of motor generator set 120 by obtaining like this producing electric power, and charges into battery 13 with the electric power that is produced.

More specifically, switch valve 44 cuts out by the control unit (not shown), and engine cooling water is by three-way valve 21 circulations, to flow in the heating equipment 43.Motor generator set 120 is as power generator work (rotation) in the opposite direction, and opens solenoid valve 117 by valve body 117d, to open inlet 116.

In this operation, the pump shaft 134 (small diameter portion 134d) of refrigerated medium pump 130 is by overrunning clutch 140 and motor shaft 124 engagements, so that drive refrigerated medium pump 130 rotations.By high-pressure section 111c, hyperbaric chamber 114 with enter the mouth and 116 infeed among the V of working room, make refrigeration agent in the V of working room, expand by the high pressure superheater refrigeration agent of heating equipment 43 heating.Expansion by refrigeration agent make removable spool 113 with compact model in rotate on the opposite direction, the rotary driving force that imposes on axle 118 is delivered to the motor shaft 124 and the rotor 123 of motor generator set 120.When the driving force that passes to motor shaft 124 becomes when being higher than refrigerated medium pump 130 needed driving forces, motor generator set begins to rotate as power generator.And, the electric power that is obtained is charged in the battery 13 by changer 12.

Pressure is owing to the refrigeration agent that reduces that expands flows out from low pressure port 121a.The refrigeration agent that flows out from low pressure port 121a circulates rankine cycle 40, and wherein said rankine cycle 40 comprises second bypass channel 42, safety check 42a, condenser 31, gas-liquid separator 32, first bypass channel 41, safety check 41a, refrigerated medium pump 130, heating equipment 43 and inflate compression machine 110 (high-pressure mouth 111c).Refrigerated medium pump 130 will be supplied with heating equipment 43 from the liquid phase refrigerant of gas-liquid separator, wherein with pressurizes refrigerant to pressure corresponding to the temperature of the refrigeration agent of the overheated evaporation that produces at heating equipment 43.

As above, according to compound fluid machinery of the present invention, can carry out the operation of compact model at inflate compression machine 110 by electric power generation machine 120, and whether expansion energy be arranged regardless of in the refrigeration agent.In this compact model, because passing through the operation of overrunning clutch 140, refrigerated medium pump 130 disconnects from motor generator set 120, play the resistance of the operation of electronic generator 120 so can prevent refrigerated medium pump 130.

And, inflate compression machine 110 had both had the effect of compressor set (110), the effect that has expansion gear (110) again, thereby when passing through motor generator set 120 manipulation compressor sets (110) in compact model, expansion gear (110) does not play the resistance of the operation of electronic generator 120.

And, can obtain fully many expansion energies from refrigeration agent and not need under the situation of operation of compressor set (110), can make refrigerated medium pump 130 rotations by the rotary driving force that expansion gear (110) produce in its expansion mechanism, thereby drive refrigerated medium pump 130 without any need for isolated plant.Motor generator set 120 is as power generator work, to collect the expansion energy as electric energy.In this operation, may not need to handle alternator 11 and produce electric power, thereby can reduce the driving force that is used for alternator, improve specific fuel consumption thus.

And refrigerated medium pump 130 is arranged in an axle head of compound fluid machinery 100, and overrunning clutch 140 is arranged between refrigerated medium pump 130 and the neighboring devices (motor generator set 120).In fluid machinery 100, need not complicated axle construction, just can easily arrange overrunning clutch 140, and regardless of the layout of inflate compression machine 100 and motor generator set 120 how.

And, because in order to prevent that refrigeration agent from passing through the clearance leakage between motor generator set 120 and the refrigerated medium pump 30, shaft seal 150 is arranged on pump shaft 134 places, so, can prevent the effect of the resistance of shaft seal 150 electronic generators 120 when refrigerated medium pump 130 passes through overrunning clutch 140 from motor generator set 120 disconnections.

To connect the rotating speed of contact segment of pump shaft 134 at place proportional at the tightening force of the energy loss at shaft seal 150 places and 150 pairs of pump shafts 134 of shaft seal with shaft seal 150 when handling refrigerated medium pumps 130 by motor generator set 120.Shaft seal 150 is arranged on small diameter portion (contact segment) the 134d place of pump shaft 134, with rotating speed and the minimizing energy loss that reduces the contact segment periphery.

The modification of the machinery of compound fluid shown in Fig. 3 100.Same reference numerals among Fig. 3 is meant identical with the compound fluid mechanical structures shown in Fig. 1 or identical substantially part.

To different piece be described referring to Fig. 3 below.

The electric machine casing 120 of Fig. 1 is divided into two parts, and a part is electric machine casing 121b and shaft housing 111b.

The left hand end of motor shaft 124 is formed with small diameter portion 124b, and the right hand end of motor shaft 124 forms porose 134e, wherein among the small diameter portion 124b patchhole 134e.Overrunning clutch 140 is arranged between small diameter portion 124b and the pump shaft 134, thereby when motor generator set 120 rotates on direction forward as motor work and motor shaft 124, pump shaft 134 operationally disconnects from motor shaft 124, and when motor generator set 120 rotated in the opposite direction as power generator work and motor shaft 124, pump shaft 134 operationally was connected with motor shaft 124.

As shown in Figure 3, the forward end of valve body 117d forms the plane, the axis normal of described plane and its motion.Yet, plane shape can be become and make it, thereby improve sealability during by the closing of valve body 117 at inlet 116 at inlet 116 about axis tilt.

Compound fluid machinery 100 (comprising above-mentioned modification) according to first embodiment, inflate compression machine 110, motor generator set 120 and refrigerated medium pump 130 tandem arrangement make that working as inflate compression machine 110 can drive by the rotary driving force that produces at inflate compression machine 110 as expansion gear work schedule cryogenic fluid pump 130.Therefore, drive refrigerated medium pump 130 without any need for isolated plant.

And motor generator set 120 is arranged in the described space, and wherein said space is communicated with the low voltage side of inflate compression machine 110, and low pressure refrigerant flows therein.Therefore, motor generator set 120 can effectively be cooled off by the low-temperature refrigerant of the motor generator set 120 of flowing through.

The low voltage side of refrigerated medium pump 130 is communicated with motor generator set 120, and shaft seal 150 is arranged between motor generator set 120 and the refrigerated medium pump 130.Therefore, can make that the pressure reduction of the refrigeration agent between motor generator set 120 and the refrigerated medium pump 130 is less, thereby can prevent that refrigeration agent from leaking into the motor generator set 120 from refrigerated medium pump 130.

(second embodiment)

Second embodiment shown in Fig. 4, this embodiment and first embodiment's difference is that air-conditioning equipment 1 is applied to vehicle (for example, idling stop vehicle, double dynamical type vehicle), wherein according to the operation of the interim shutting engine down 10 of the drive condition (for example, idling operation, low-speed handing etc.) of vehicle.Another difference that second embodiment and first implements is, main compressor device 35 is arranged in the refrigeration cycle 30, and is provided with connecting passage 51,52 and switch valve 51a, 52a, 53a.

As mentioned above, main compressor device 35 is independent of inflate compression machine 110 and is arranged in the refrigeration cycle 30.The refrigerant cycle 30 of present embodiment comprises main compressor device 35, condenser 31, gas-liquid separator 32, vaporizer 34, and they connect with circuit.

Main compressor device 35 is provided with pulley gear 35a, and described pulley gear has pulley and as the magnetic clutch of driving force conveying means work.Pulley gear 35a is operably connected with motor 10 via drive belt 14.When the magnetic clutch of pulley gear 35a was connected, main compressor device 35 was by the drive force of motor 10, and when disconnecting magnetic clutch, stopped the operation of main compressor device 35.Magnetic clutch is controlled by the control unit (not shown).

Identical with first embodiment, rankine cycle 40 comprises refrigerated medium pump 130, heating equipment 43, inflate compression machine 110, condenser 31 and gas-liquid separator 32, and they connect with circuit.

First connecting passage 51 is arranged between the low voltage side (bonding point E) of the refrigerant inlet side (bonding point D) of main compressor device 35 and inflate compression machine 110.Second connecting passage 52 is arranged between the refrigerant outlet side (bonding point G) of the high pressure side (bonding point F) of inflate compression machine 110 and main compressor device 35.

First to the 3rd switch valve 51a, 52a are separately positioned on first connecting passage 51, second connecting passage 52 with 53a and make in condenser 31 and the passage that bonding point E is connected.These switch valves are solenoid valves, will be by the control of control unit (not shown), to open or close respective channel.

The air conditioner that reference character 450 expressions have unit housings 460 wherein is provided with vaporizer 34 and heater core 431 in described unit housings 460.Reference character 431a is an air mix door, be used to be controlled at the flow velocity of the air of vaporizer 34 coolings and the heater core 431 of flowing through, thereby the cooling air by mixing from evaporator drier 34 and from the heated air of heater core 431, control blasts the air temperature of the passenger accommodation of vehicle.Reference character 430 is heater circuits, is used to make engine cooling water (hot water) by heater core 431.Reference character 23a is the radiator bypass channel, and reference character 24 is thermoregulators, is used to control the engine cooling water of walking around radiator 23.

Will be referring to Fig. 5 to 9 explanation second embodiment's operation.

(the independent operator scheme of main cooling down operation: Fig. 5)

In this operator scheme, under the situation that can not get fully many used heat from motor 10, for example when motor 10 is in its preheat mode, or with electric power battery 13 is fully being charged and no longer needing under the situation of further charging, when needs are used for the cooling down operation of vehicle, handle main compressor device 35.

In this operator scheme, arrive heating equipment 43 by the operation shutting engine down chilled(cooling) water supply (CWS) of three-way valve 21.All switch valve 51a, 52a and 53a close, and connect the magnetic clutch of the pulley gear 35a that is used for main compressor device 35.

Then, main compressor device 35 is driven by motor 10, with compression with pump (discharging) refrigeration agent, and as usefulness Fig. 5 in solid arrow represented, the refrigeration agent that is discharged circulates in refrigeration cycle 30, thereby carries out cooling down operation by the heat absorption operation at vaporizer 34 places.In this operator scheme, stop the operation of compound fluid machinery 100.

(the independent operator scheme of rankine cycle operation: Fig. 6)

In this operator scheme, during vehicle is advanced, can obtain under fully many situations and electric power need be charged under the situation of battery 13 from motor 10, when not needing to be used for the cooling down operation of vehicle, inflate compression machine 110 is operated as expansion gear.This operator scheme is corresponding to first embodiment's expansion mechanism.

Because the operation of three-way valve 21 allows engine cooling water to supply with heating equipment 43.The first and second switch valve 51a and 52a close, and the 3rd switch valve 53a opens.Disconnection is used for the magnetic clutch of the pulley gear 35a of main compressor device 35.Motor generator set 120 is as power generator (rotation in the opposite direction) operation, and the solenoid valve 117h (Fig. 1) of inflate compression machine 110 opens.

Then, refrigerated medium pump 130 work by expanding the superheated refrigerant of self-heating apparatus 43, produce rotary driving force at inflate compression machine 110 places, and motor generator set 120 are driven by rotary driving force.When the rotary driving force that produces at inflate compression machine 110 places become greater than refrigerated medium pump 130 necessary driving forces the time, motor generator set 120 beginnings are rotated as power generator.And the electric power that is obtained charges in the battery 13 by changer 12.As by shown in the arrow of the dotted line among Fig. 6, rankine cycle 40, circulate from the refrigeration agent of inflate compression machine 110 dischargings.In this operator scheme, stop the operation of main compressor device 35.

(main cooling ﹠amp; The bi-directional mode of operation of rankine cycle operation: Fig. 7)

In this operator scheme, during advancing, vehicle can obtain under fully many situations from motor 10, with electric power need be charged under the situation of battery 13, when not needing to be used for the cooling down operation of vehicle, in above-mentioned rankine cycle, the independent operator scheme, further handle main compressor device 35.

Because the operation of three-way valve 21 allows engine cooling water to supply with heating equipment 43.The first and second switch valve 51a and 52a close, and the 3rd switch valve 53a opens.Motor generator set 120 is as power generator (rotation in the opposite direction) operation, and the solenoid valve 117h (Fig. 1) of inflate compression machine 110 opens.And the magnetic clutch that connects the pulley gear 35a that is used for main compressor device 35.

Identical with the independent operator scheme of above-mentioned rankine cycle, executable operations in rankine cycle 40, thereby the driving force by producing at inflate compression machine 110 places produce electric power at motor generator set 120 places.Shown in the arrow of the dotted line among Fig. 7, make refrigerant cycle.

Identical with the above-mentioned independent operator scheme of main compressor device 35, further executable operations in refrigeration cycle 30, thus main compressor device 35 drives by motor 10, and by the heat absorption operation at vaporizer 34 places, execution cooling down operation.Shown in the arrow of the solid line among Fig. 7, make refrigerant cycle.

(the auxiliary operation pattern that is used for main cooling down operation)

In this operator scheme, be parked at vehicle under the situation under the burning sun in summer, when the big cooling capacity of needs was cooled off the vehicle inside space fast, except the operation of main compressor device 35, inflate compression machine 110 was also operated as compressor set.

In this operator scheme, the operation stop supplies engine cooling water by three-way valve 21 is to heating equipment 43.The first and second switch valve 51a and 52a open, and the 3rd switch valve 53a closes.The solenoid valve 117h (Fig. 1) of inflate compression machine 110 closes, and the stator 122 of electric power supply motor generator set 120, thereby it is as motor work (rotating on direction forward).The magnetic clutch that connects the pulley gear 35a that is used for main compressor device 35.

Then, main compressor device 35 is driven by motor 10, with compression with pump (discharging) refrigeration agent, and as usefulness Fig. 8 in solid arrow represented, the refrigeration agent that is discharged circulates in refrigeration cycle 30.Inflate compression machine 110 is handled by the motor generator set 120 that is in compact model, thereby the part of circuit refrigeration agent flows into inflate compression machine 110 from the inlet side (bonding point D) of compressor set 35 by first connecting passage 51 and the first switch valve 51a in refrigeration cycle 30, refrigeration agent is compressed machine (110) compression, and pump (discharging) from compressor set (110), and refrigeration agent flows into condenser 31 by second connecting passage 52 and second switch valve 52a.Shown in the dashdotted arrow among Fig. 8, make refrigerant cycle.

As mentioned above, a large amount of refrigeration agents are compressed, and from compressor set parallel to each other refrigeration cycle 30 35 and 110 dischargings of inflate compression machine, thereby the flow that flows through the refrigeration agent of vaporizer 34 and condenser 31 increases, and improves the cooling capacity of vaporizer 34 whereby.In this operator scheme, because overrunning clutch 140, refrigerated medium pump 130 disconnects from motor generator set 120, and the operation of refrigerated medium pump 130 stops.

(the independent operator scheme of auxilliary cooling down operation: Fig. 9)

In this operator scheme, even under the situation that power operation stops, when the needs cooling down operation, replace main compressor device 35, inflate compression machine 110 is as compression set work.This operator scheme is corresponding to first embodiment's compact model.

In this operator scheme, the operation stop supplies engine cooling water by three-way valve 21 is to heating equipment 43.The first and second switch valve 51a and 52a open, and the 3rd switch valve 53a closes.The solenoid valve 117h (Fig. 1) of inflate compression machine 110 closes, and the stator 122 of electric power supply motor generator set 120, thereby it is as motor work (rotating on direction forward).

In this operator scheme, the operation of main compressor device 35 stops with the operation of motor 10.Inflate compression machine 110 is handled by the motor generator set 120 as compression set.The refrigeration agent that comes from evaporator drier 34 is by first connecting passage 51, the first switch valve 51a, inflate compression machine 110, second connecting passage 52, second switch valve 52a, condenser 31, gas-liquid separator 32, dropping equipment 33 and vaporizer circulation, wherein, the mobile therein refrigeration agent circuit of refrigeration agent forms refrigeration cycle.

As mentioned above, according to second embodiment, the main compressor device 35 that is driven by motor 10 is arranged in the refrigeration cycle 30, and connecting passage 51 and the 52 and first to the 3rd switch valve 51a, 52a and 53a are arranged between refrigeration cycle 30 and the rankine cycle 40.As a result, at motor 10 duration of works, can be according to various serviceability, for example from the used heat state of motor 10, the requirement that produces to the requirement of cooling down operation, to electric power etc., independent or carry out cooling down operation simultaneously and electric power produces operation.

And, because except main compressor device 35, inflate compression machine 110 can be used as compression set work, so can improve cooling capacity when the higher cooling capacity of needs, wherein for refrigeration cycle, inflate compression machine 110 and main compressor device 35 are set parallel to each other.

And, because when shutting engine down was operated, inflate compression machine 110 can replace main compressor device 35 as the compression set operation, so even when shutting engine down is operated, also can obtain continuous cooling down operation.

In above-mentioned first and second embodiments, overrunning clutch 140 can replace with solenoid valve, and described solenoid valve is by the electrical signal control from the electronic control unit (not shown).

According to this layout, as the expansion gear duration of work, it is controlled that the amount of circuit refrigeration agent can promptly be used for the Kai Heguan of operation of refrigerated medium pump 130 by the switch of solenoid valve in rankine cycle 40 at fluid machinery 100.

Inflate compression machine 110 in the foregoing description forms the fluid machinery that not only has the function of compressor set but also have the function of expansion gear.Yet, can independently form compressor set and expansion gear.

The fluid machinery of rotary, piston type, blade type or any other type can be used as inflate compression machine 110, or independent of compressor set and expansion gear.

In the above-described embodiments, inflate compression machine 110, motor generator set 120 and refrigerated medium pump 130 order setting according to this.Yet the order that above-mentioned these three devices are set is not limited to the order shown in the figure.

Internal-combustion engine 10 is explained as the living thermic devices in the foregoing description.Can be with any other device or equipment as giving birth to thermic devices 10, for example external-combustion engine, fuel cell group, motor, changer etc., they produce heat during operation, and throw away (distributing) heat (as used heat) for the device of controlling himself or equipment.

(the 3rd embodiment)

The 3rd embodiment shown in Figure 10 to 13, this embodiment and first and second embodiments' difference be following some.

At first, will difference in the structure of fluid machinery 100B be described referring to Figure 10.

Remove first embodiment's refrigerated medium pump 130 from the 3rd embodiment's fluid machinery 100B.The axle head of motor shaft 124 is supported rotationally by the bearing 141 that is fixed to electric machine casing 121.

Inlet 116 is communicated with the V of working room with the one end.And enter the mouth 116 with hyperbaric chamber 114 openings of its other end court in the part of close floss hole 115,116 the channel region of wherein entering the mouth is designed to big inadequately, thus in overheated gasified refrigerant by 116 pressure losses that are not enough to produce refrigeration agent when flowing into the V of working room that enter the mouth.As shown in Figure 11, inlet 116 forms in the substrate 112a of fixing spool 112, and forms L shaped.Inlet 116 part therebetween is crooked, and the sealed department 116a that the safety check part 322b of bobbin 322 may be operably coupled to is formed on the intermediate portion office.Be referred to as working room's side canal with sealed department 116a with at an end of the inlet 116 at floss hole 115 places, and the other end of sealed department 116a and inlet 116 is referred to as the high pressure side passage.The side canal 116b of working room forms in substrate 112a, so that tilt about floss hole 115.

The floss hole control valve unit comprises escape cock 117a, stopper 117b and bolt 117c, and its structure is identical with first embodiment.

Inlet valve device 300 comprises bobbin type valve body 322, the 322b of safety check portion and the protuberance 322c with slide part 322a.Slide part 322a is the main body of valve body 322, and is forming cylindricality to end thereafter, so that form cylindrical space.Make that the external diameter of sliding parts 322a is bigger than the external diameter of the other parts (safety check part 322b and protuberance 322c) of valve body 322.Safety check part 322b is formed on the position near the forward end of valve body 322, and forms the round flange shape.Protuberance 322c forms at the forward end of valve body 322, and forms cylindricality, makes its external diameter littler than the external diameter of safety check 322b.Make the cube volume cube volume of working room's side canal 116b no better than of protuberance 322c.Slide part 322a, the 322b of safety check portion and the coaxial setting of protuberance 322c.

Cylindrical space forms in the substrate 112a of fixing spool 112, and coaxial with the side canal 116b of working room.The outer end of cylindrical space is to the outside opening of fluid machinery 100B.Sealing 324 is arranged on the peripheral part of slide part 322a.Valve body 322 is slidingly arranged in the cylindrical space, makes protuberance 322c in the face of the side canal 116b of working room.The outer end of cylindrical space is sealed by stopper spare 323, and forms pressure chamber 326, back by the space that slide part 322a and stopper spare 323 limit.The cylindricality guide portion 323a that extends towards slide part 322a is formed on stopper spare 323 places, wherein makes the external diameter of guide portion 323a less than the external diameter of stopper spare 323.Under safety check part 323a and sealed department 116a state of contact, between slide part 322a and stopper spare 323, form the gap, thereby can move axially valve body 322.

It is distolateral that high pressure side passage 116c is positioned at the forward direction of slide part 322a, distolateral thereby the high pressure P 1 of the refrigeration agent in the hyperbaric chamber 114 always is applied to the forward direction of slide part 322a.Gas spout 327 forms in substrate 112a, is used to make the back to press chamber 326 to be communicated with the 117j of pressure controling chamber (Figure 10), so that the pressure P 2 of the refrigeration agent among the 117j of pressure controling chamber is applied to pressure chamber 326, back, that is, is applied to the back to side of slide part 322a.

Spring 325 is arranged between slide part 322a and the stopper spare 323, and is guided by cylindricality guide portion 323a.Thereby biasing force F is applied to valve body 322 on the valve closing direction,, enters the mouth 116 thereby close so that the 322b of safety check portion contacts with sealed department 116a.Biasing force F is designed to such valve, even in the V of working room, producing high pressure during the compact model of inflate compression machine 110, and when this high pressure is applied to the protuberance 322c of valve body 322 by floss hole 115, at described valve place, valve body 322 can not move towards stopper spare 323 (opening on the direction at valve) yet.

Axial length and the external diameter of protuberance 322c design like this, make the cube volume of the protuberance 322c cube volume of working room's side canal 116b no better than that becomes.More specifically, the axial length of protuberance 322c designs like this, makes to open on the direction when mobile at valve when valve body 322, and protuberance 322c pulls out fully from the side canal 116b of working room.And protuberance 322c separates with sealed department 116a, and to form circular flow channel between protuberance 322c and sealed department 116a, wherein circular flow channel has the flow area that the refrigeration agent that allows necessary amount can flow through circular flow channel.As mentioned above, the mobile range of valve body 322 is designed to, make when valve body is mobile on the valve closing direction, protuberance 322c is contained among the side canal 116b of working room, and open on the direction when mobile at valve when valve body 322, protuberance 322c pulls out fully from the side canal 116b of working room, and separates with sealed department 116a, to form gap (circular flow channel).

As shown in Figure 10, identical with first embodiment, mouth of pipe 117g forms in substrate 112a, is used to make hyperbaric chamber 114 to be communicated with the 117j of pressure controling chamber, and described mouth of pipe 117g is limited by the hole that forms in substrate 112a and solenoid valve 117h.Mouth of pipe 117g has certain flow resistance.Connecting port 117k forms in substrate 112a, makes the 117j of pressure controling chamber operationally be communicated with the low voltage side of inflate compression machine 110.Another gas spout 117m also forms in substrate 112a, and presses the gas spout 327 of chamber 326 to be communicated with via communication passage 328 and back.The pressure of the refrigeration agent among the 117j of pressure controling chamber is by solenoid valve 117h control, so that the pressure P 2 of the 117j of pressure controling chamber is applied to pressure chamber 326, back.

More specifically, when solenoid valve 117h closed, connecting port 117k closed, and the 117j of pressure controling chamber is communicated with hyperbaric chamber 114 by mouth of pipe 117g, so that with the pressure among the high pressure P 1 pilot pressure control room 117j in hyperbaric chamber 114.Then, high pressure P 1 is applied to the back by communication passage 328 presses chamber 326, thereby it is distolateral and back to distolateral that high pressure P 1 is applied to the forward direction of slide part 322a.The spring force F of valve body 322 by spring 325 moves in (on the direction that makes progress at Figure 11) on the valve closing direction, and safety check part 322b contacts with sealed department 116a, and enters the mouth and 116 close.The pressure loss at mouth of pipe 117g place is very high, thereby 114 little the getting of refrigerant flow that flow into pressure chamber 326, back can be ignored from the hyperbaric chamber.

On the other hand, when solenoid valve 117h opened, connecting port 117k opened, so that the high pressure in the pressure chamber 326, back is discharged into the low voltage side (to low pressure port 121a) of inflate compression machine 110 by communication passage 328, the 117j of pressure controling chamber and connecting port 117k.As a result, low pressure P2 (being lower than pressure P 1) is applied to the back and presses chamber 326.Pressure differential deltap P (P1-P2) produces at sliding parts 322a place.When the active force that obtains by pressure reduction (cross sectional area of=Δ P * sliding parts 322a) becomes greater than spring force F, valve body 322 is gone up mobile in direction (valve is opened the backward directions of direction=Figure 11) backward, safety check part 322b separates with sealed department 116a, to open inlet 116.As mentioned above, valve body 322, back press chamber 326, spring 325, communication passage 328, mouth of pipe 117g, solenoid valve 117h etc. to form the pivoting dynamoelectric switching valve, to open and close inlet 116.

When valve body 322 was mobile on direction backward, inlet 116 was fully opened.The back of sliding parts 322a contacts with stopper spare 323 to end, thus the moving down of limiting valve body 322, as shown in Figure 12.As mentioned above, the cross sectional area of sliding parts 322a is designed to, active force (cross sectional area of=Δ P * sliding parts 322a) becomes greater than spring force F.

Fluid machinery 100B with said structure (Figure 10) is used in refrigeration cycle 30 shown in Figure 13 and the rankine cycle 40.

The difference of Figure 13 (the 3rd embodiment) and Fig. 2 (first embodiment) will be described.

In first embodiment, be integrated into refrigerated medium pump 130 in the fluid machinery 100 and be arranged in the coolant channel from gas-liquid separator 32 to bonding point A (Fig. 2).Yet as mentioned above, refrigerated medium pump is not arranged among the 3rd embodiment's (Figure 10) the fluid machinery 100B, and on the contrary, independently liquid pump 130a replaces refrigerated medium pump to be arranged on the coolant channel from gas-liquid separator 32 to bonding point A.

Reference character 300 expressions are used for being arranged on the control valve unit of the coolant channel between heating equipment 43 and the inflate compression machine 110.As mentioned above, referring to Figure 10, control valve unit 300 comprises valve body 322, pressure chamber 326, back, spring 325, solenoid valve 117h etc.

Reference character 15 expressions are used for the temperature transducer of the temperature of detection of engine cooling water.

Reference character 400 expression is used for according to the command signal (A/C command signal) that is used for the air-conditioning operation with from the electronic control unit (ECU) of control three-way valve 21, the inlet valve devices 300 etc. such as temperature signal of temperature transducer 15.

Reference character 170 expression electric load, for example headlight, engine accessory power ratings etc.

It is basic identical with another structure and first embodiment of refrigeration cycle 30 partly and rankine cycle 40 that wherein identical with first embodiment reference character is used for identical or identical substantially parts.

To operation and the effect of the 3rd embodiment's fluid machinery 100B be described.

(compact model)

Compact model is the operator scheme of carrying out during by the Vehicular occupant order at cooling down operation.

The operation of compact model is identical with first embodiment's operation.That is, the handover operation stop supplies thermo-motor cooling water by three-way valve 21 is to heating equipment 43.Solenoid valve 117h closes, and makes inlet 116 close.Electric power is supplied with motor generator set 120, operating on it, thereby the rotary driving force of motor generator set is applied to inflate compression machine 110 (as compressor device works) as motor.Refrigeration agent is sucked by low pressure port 121a by compressor set 110, and by the V of working room compression, to pump compressed high-pressure refrigerant by floss hole 115.The refrigeration agent of discharging circulates in refrigeration cycle 30, and wherein said refrigeration cycle 30 comprises the low pressure port 121a of high-pressure mouth 111c, heating equipment 43, condenser 31, gas-liquid separator 32, dropping equipment 33, vaporizer 34, safety check 34b and fluid machinery 100B.

(expansion mechanism)

Expansion mechanism is the operator scheme of carrying out when the fully many heat energy of collecting from engine cooling water, producing mechanical energy (rotary driving force) at inflate compression machine 110 places, thereby makes motor generator set 120 rotations, produces electric power.

The operation of expansion mechanism is also identical with first embodiment.

That is, the temperature (being detected by temperature transducer 15) when engine cooling water when being higher than predetermined value and when not needing cooling down operation, begins to supply the thermo-motor cooling water in heating equipment 43.

Open solenoid valve 117h, so that open inlet 116.Electric power is supplied with liquid pump 130a, with the circulation of beginning refrigeration agent in rankine cycle 40.

Overheated gasified refrigerant infeeds (as expansion gear work) the inflate compression machine 110 from heating equipment 43 by the inlet of opening 116.Refrigeration agent expands in the V of working room, to produce rotary driving force, rotor 123 is rotated, thereby produce electric power at stator 122 places.The electric power that is produced charges into battery 13 by changer (controller) 12.

Swell refrigeration agent with low pressure circulates in rankine cycle 40, and wherein said rankine cycle 40 comprises the high-pressure mouth 111c of low pressure port 121a, second bypass channel 42, safety check 42a, condenser 31, gas-liquid separator 32, first bypass channel 41, safety check 41a, liquid pump 130a, heating equipment 43 and fluid machinery 100B.

(the 3rd embodiment's effect)

According to above-mentioned the 3rd embodiment, protuberance 322c forms at valve body 322 places, makes the cube volume cube volume of working room's side canal 116b no better than of protuberance 322c.When 110 conducts of inflate compression machine are in the compressor device works of compact model, make that the inner space of the side canal 116b of working room is almost nil.That is, can make that the dead space of the side canal 116b of working room is almost nil, thereby reduce the compression loss of refrigeration agent.

According to above-mentioned the 3rd embodiment, 322b of safety check portion and protuberance 322c and the coaxial setting of slide part 322a.Therefore, be easier to make valve body 322, and when being assembled to valve body 322 among the fluid machinery 100B, needn't be about sense of rotation positioning valve 322 around axis.

116 (the side canal 116b of working room) are parallel to floss hole 115 (perpendicular to substrate 112a) formation in substrate 112a if enter the mouth, wherein inlet opens and closes by the valve body that moves on parallel direction, and then the longitudinal length of fluid machinery 100B will become longer.On the other hand, if form on 116 (the side canal 116b of the working room) direction perpendicular to floss hole 115 in substrate 112a that enters the mouth, and valve body 322 is mobile on described Vertical direction, needn't make that then the thickness of substrate 122a is bigger.Then, floss hole 15 will correspondingly become longer, thereby the dead space that is formed by floss hole 115 will become longer.

Yet according to above-mentioned the 3rd embodiment, inlet 116 (the side canal 116b of working room) form about floss hole 115 to tilt in substrate 112, and valve body 322 is arranged in the inlet 116, to move on the direction identical with the axis of the side canal 116b of working room.As a result, the longitudinal length of fluid machinery 100B will be suppressed to smaller value, and can make that the dead space that is formed in the floss hole 115 is less.

And according to above-mentioned the 3rd embodiment, substrate 112a is formed by thin-walled portion (upper half part among Figure 10) and thick wall part (lower half portion among Figure 10).Floss hole 115 is formed in the thin-walled portion, and wherein floss hole 115 is formed on the center of substrate 112a, and inflate compression machine 110 axially on extend.Extend diametrically in side canal 116b of working room and the space that is used for valve body 322, and as has been described, inlet 116 forms L shaped, and high pressure side passage 116c forms in thick wall part, is parallel to floss hole 115 and extends, and be communicated with the side canal 116b of working room.According to the said structure of substrate 112a, floss hole 115 and the side canal 116b of working room can be formed among the substrate 112a, and valve body 322 can be contained among the substrate 122a, and needn't make that the length of floss hole 115 is longer.

According to above-mentioned the 3rd embodiment, circular circumference wall section and substrate 112a are integrally formed, wherein, described wall section fluid machinery vertically on (on the opposite side of removable spool 113) extend from substrate 112a, and front shell plate 111a is fixed to the vertical end of described wall section, to form hyperbaric chamber 114 therein.The space that is used for valve body 322 and stopper spare is formed on thin-walled portion and circular perimeter wall section, and extend diametrically by the circular perimeter wall section in wherein said space.According to this structure, can make that fixedly spool 112 is less.

And according to above-mentioned the 3rd embodiment, Sealing 324 is arranged on the outer surface place of sliding parts 322a, can prevent that refrigeration agent from leaking into the back from the side canal 116b of working room and pressing chamber 326.Make the longitudinal length of sliding parts 322a than its outer path length, thereby sliding parts 322a can press in the chamber 326 and smoothly move in the back.Spring 325 is by the guide portion 323a of stopper spare 323 guiding, thus the bending compression of spring 325 can prevent also that valve body 322 is mobile backward the time.

(the 3rd embodiment's modification)

The 3rd embodiment's modification shown in Figure 14, wherein protuberance 322c further extends on it is vertical, makes its forward end be projected in the floss hole 115.And, make that the internal diameter of another part of internal diameter brake specific exhaust emission mouth of the floss hole 115 on 114 1 sides of hyperbaric chamber is little.The small diameter portion 115a of floss hole 115 is designed to make the flow of the refrigeration agent that pumps from inflate compression machine 110 to have optimum value.

According to above-mentioned modification, can reduce the volume of the floss hole 115 that is used for compact model by protuberance 322c, that is, can reduce the dead volume of floss hole 115.Small diameter portion 115a serves as floss hole substantially.

Guide portion 323a has wherein been eliminated in another modification of the 3rd embodiment shown in Figure 15.On the contrary, positioning part 323b is arranged on stopper spare 323 places, is used for spring 125 is positioned at the position that it is fit to.

The 3rd embodiment's shown in Figure 16 another modification.Slide plate 322d inserts in the hole of valve body 322, makes slide plate 322d between spring 325 and bottom, hole.Be lower than in material (for example aluminium or the alumina-base material) hardness of valve under the situation of material (for example iron or iron) of spring 325, from equaling the material of material hardness of spring 325, hardness selects to be used for the material of slide plate 322d, or on the surface of slide plate 322d, carry out surface hardening by spraying plating process for instance and handle, so that can prevent because slide plate 322d causes slide plate 322d wearing and tearing about the slip of spring 325.Guide portion 322e can be set to slide plate 322d, is used for guide springs 325.

The fluid machinery 100 that also the 3rd embodiment's inlet valve device 300 can be used for first and second embodiments.

(the 4th embodiment)

The 4th embodiment shown in Figure 17 (fluid machinery 100C), wherein magnetic clutch 340 and power transmission 350 are set to the 3rd embodiment's (Figure 10) compound fluid machinery 100B, and inflate compression machine 110, motor generator set 120 and magnetic clutch 340 are operably connected with power transmission 350.

Magnetic clutch 340 comprises: pulley 341, will be rotated via the vee-belt (not shown) by the driving force of motor 10; Field coil 342 is used to produce magnetic field; Friction board 343 by the electromagnetic force displacement in the magnetic field that produced by field coil 342, and may be operably coupled to pulley 341; Axle 344 is connected to friction board 343 etc.Overrunning clutch 344a and crack sealer 344b are arranged on the axle 344.

Overrunning clutch 344a allows axle 344 only to go up the clutch of rotation in a direction (sense of rotation of pulley 341).Crack sealer 344b is a Sealing, be used to prevent refrigeration agent from the inside of fluid machinery by the clearance leakage between axle 344 and the electric machine casing 121 to electric machine casing 121 outsides.

Power transmission 350 comprises the central gear 351 that is arranged on its center, have a plurality of and central gear 351 engagements small gear 352a planetary carrier 352 and with the ring gear 353 of small gear 352a engagement, wherein small gear rotates around central gear 351 with its own axle.Central gear 351 is integrally formed with the rotor 123 of motor generator set 120, and planetary carrier 352 one are connected to the axle 344 of magnetic clutch 340, and ring gear 353 is connected to the axle 317 that is used for inflate compression machine 110.

According to the 4th embodiment, during the compact model of inflate compression machine 110, motor 10 and electric power generation machine 120 be optionally as the driving source of inflate compression machine 110, and this depends on the working state (at its work or duration of work not) of motor.That is, under a kind of situation, inflate compression machine 110 is connected with motor 10 by magnetic clutch 340, with the axle 3 17 from the transmission rotating force to inflate compression machine 110.Under another situation, inflate compression machine 110 disconnects from motor 10 by magnetic clutch 340, and motor generator set 120 is used for the rotating force of inflate compression machine 110 as motor work with generation.

More specifically, supply electric power is given magnetic clutch 340 during engine operation, to connect magnetic clutch 340.And also electric power is supplied with motor generator set 120, not make central gear 351 rotor rotated 123 (that is, rotor 123) locate to produce this moment of torsion.Then, the rotating speed that is sent to the rotary driving force of pulley 341 from motor increases by power transmission 350, and is sent to inflate compression machine 110, thereby it is as compressor device works.

The electric power of (or during engine operation) sever supply magnetic clutch 340 when shutting engine down is operated is to disconnect inflate compression machine 110 from motor 10.Electric power is supplied with motor generator set 120, so that rotor 123 rotates on the direction opposite with the sense of rotation of pulley 341, thereby inflate compression machine 110 is as compressor device works.Under this operation, axle 344 (planetary carriers 352) do not rotate, because the rotation of axle 344 on this sense of rotation locked by overrunning clutch 344a.As a result, the rotating speed of the rotating force that produces at motor generator set 120 places reduces by power transmission 350, and is sent to inflate compression machine 110.

Under the situation of inflate compression machine 110 as expansion gear work, the electric power of sever supply magnetic clutch 340 is so that inflate compression machine 110 disconnects from motor 10.Then, make removable spool 113 rotate to the direction of compact model by superheated refrigerant expansion in the opposite direction, and send the rotating force of removable spool 113 to motor generator set 120.In this operation, the rotating speed of the rotating force of removable spool 113 increases by power transmission 350, and is sent to motor generator set, because the rotation of axle 344 on this sense of rotation locked by overrunning clutch 344a.

(the 5th embodiment)

The 5th embodiment shown in Figure 18 (fluid machinery 100D), wherein magnetic clutch 340 is set to the 3rd embodiment's (Figure 10) fluid machinery 100B.In this embodiment, axle 344 one of magnetic clutch 340 are connected to the axle 124 of motor generator set 120.

According to the 5th embodiment, identical with the 4th embodiment (Figure 17), during the compact model of inflate compression machine 110, motor 10 and electric power generation machine 120 be optionally as the driving source of inflate compression machine 110, and this depends on the working state (at its work or duration of work not) of motor.Under a kind of situation, inflate compression machine 110 is connected with motor 10 by magnetic clutch 340, with the axle 317 from the transmission rotating force to inflate compression machine 110.Under another situation, inflate compression machine 110 disconnects from motor 10 by magnetic clutch 340, and motor generator set 120 is used for the rotating force of inflate compression machine 110 as motor work with generation.Under the situation of inflate compression machine 110 as expansion gear work, the electric power of sever supply magnetic clutch 340 is so that inflate compression machine 110 disconnects from motor 10.Then, removable spool 113 rotates by the expansion of superheated refrigerant, and the rotating force of removable spool 113 is sent to motor generator set 120.

The fluid machinery of rotary, piston type, blade type or any other type can be used as inflate compression machine 110, or independent of compressor set and expansion gear.

In the above-described embodiments, the energy of being collected by inflate compression machine 110 charges into battery 15.Yet the motion that collected energy can be used as flywheel can charge into, or charges into as other kinetic energy (for example, elastic potential energy) of spring.

The fluid machinery of the foregoing description not only can be applicable to have the used heat that is used to collect from the rankine cycle of the used heat of internal-combustion engine and utilizes equipment, and can be applicable to be used to collect and be used to give birth to any miscellaneous equipment of the used heat of thermic devices from any other.

(the 6th embodiment)

The 6th embodiment shown in Figure 19 to 24, this embodiment and second embodiment's (Fig. 4 to 9) difference be following some.

In above-mentioned second embodiment, used fluid machinery 100, wherein fluid machinery 100 has inflate compression machine 110, motor generator set 120 and refrigerated medium pump 130, and they are integrally formed as parts, as shown in fig. 1.

According to the 6th embodiment, used fluid machinery, wherein, fluid machinery has inflate compression machine 110 and motor generator set 120, and they are integrally formed as parts, for example, as shown in Figure 10,17 and 18.And liquid pump 130a replaces refrigerated medium pump 130 to be arranged in the rankine cycle.

In Figure 19, reference character 35b and 35c represent pulley and magnetic clutch respectively, and they are corresponding to second embodiment's (Fig. 4) pulley gear 35a.

Although three-way valve 21 and heating equipment bypass channel 21a are not provided in the 6th embodiment, they can add among this embodiment.

Other structure of the 6th embodiment is identical with second embodiment (Fig. 4), and its operation is also identical substantially with second embodiment.Will be referring to the described operation of Figure 20 to 24 brief description.

(the independent operator scheme of main cooling down operation: Figure 20)

In this operator scheme, under the situation that can not get fully many used heat from motor 10, for example when motor 10 is in its preheat mode, or with electric power battery 13 is fully being charged and no longer needing under the situation of further charging, when needs are used for the cooling down operation of vehicle, handle main compressor device 35.

Main compressor device 35 is connected to motor 10 via magnetic clutch 35c, and represented as the solid arrow among Figure 20, is circulated in refrigeration cycle 30 by main compressor device 35 refrigerant compressed.

(the independent operator scheme of rankine cycle operation: Figure 21)

In this operator scheme, during vehicle is advanced, can obtain under fully many situations and electric power need be charged under the situation of battery 13 from motor 10, when not needing to be used for the cooling down operation of vehicle, inflate compression machine 110 is operated as expansion gear.

Main compressor device 35 disconnects from motor 10, and is circulated in rankine cycle 40 by liquid pump 130a by the refrigeration agent of heating equipment 43 heating, shown in the dotted arrow among Figure 21.

(main cooling ﹠amp; The bi-directional mode of operation of rankine cycle operation: Figure 22)

In this operator scheme, during advancing, vehicle can obtain under fully many situations from motor 10, with electric power need be charged under the situation of battery 13, when not needing to be used for the cooling down operation of vehicle, the independent operator scheme in above-mentioned rankine cycle, further handle main compressor device 35.

Main compressor device 35 is connected to motor 10 via magnetic clutch 35c, and represented as the solid arrow among Figure 22, is circulated in refrigeration cycle 30 by main compressor device 35 refrigerant compressed.

In this operator scheme, be parked at vehicle under the situation under the burning sun in summer, when the big cooling capacity of needs was cooled off the vehicle inside space fast, except the operation of main compressor device 35, inflate compression machine 110 was also operated as compressor set.

Main compressor device 35 is connected to motor 10 via magnetic clutch 35c, and represented as the solid arrow among Figure 23, is circulated in refrigeration cycle 30 by main compressor device 35 refrigerant compressed.In addition, represented as the dash-dot arrows among Figure 23, circulate in described refrigeration cycle by compressor set 110 refrigerant compressed.

(the independent operator scheme of auxilliary cooling down operation: Figure 24)

In this operator scheme, even under the situation that power operation stops, when the needs cooling down operation, replace main compressor device 35, inflate compression machine 110 is as compression set work.

No matter whether main compressor device 35 is connected to motor 10 via magnetic clutch 35c, and owing to stopping of power operation, the operation of main compressor device 35 all stops.Represented as the dash-dot arrows among Figure 24, circulate in described refrigeration cycle by compressor set 110 refrigerant compressed.

The fluid machinery that the fluid machinery 100 and the 100A to 100D of first to the 5th embodiment explanation be can be used as the 6th embodiment.

(the 7th embodiment)

The 7th embodiment shown in Figure 25, wherein the 6th embodiment's (Figure 19) the first and the 3rd switch valve 51a and 53a replace with safety check 51b and 53b.

When system works with rankine cycle 40, safety check 51b and 53b allow working fluid only to flow in one direction respectively, promptly in first connecting passage 51 from main compressor device 35 to inflate compression machine 110 with from inflate compression machine 110 to condenser 31.

Safety check 51b and 53b cost are lower than switch valve (solenoid valve) 51a and 53a, thereby can the low-cost system that makes present embodiment.

(the 8th embodiment)

The 8th embodiment shown in Figure 26 to 31, described embodiment and the 6th embodiment's (Figure 19 to 24) difference is the structure of inflate compression machine and connecting passage.

Inflate compression machine 110B by the piston type fluid machinery but not the Scroll fluid machinery form.Timing valve is set to open and close the timing of working room, thus the inflow and the outflow of control refrigeration agent.And under the two kind situations of inflate compression machine as expansion gear and compressor device works, refrigeration agent is fixed to a direction to the flow direction of inflate compression machine 110B.

Connecting passage 510 is set to connect the suction side of main compressor device 35 and the inlet side of inflate compression machine 110B (suction side when working as the auxiliary compressor device), and switch valve 511 is arranged in the connecting passage 510, is used to open or close connecting passage 510.

According to the 8th embodiment, carry out the independent operator scheme of main cooling down operation, make connecting passage 510 close by switch valve 511, the operation of inflate compression machine 110 stops, and main compressor device 35 is driven by motor 10.As represented, in refrigeration cycle, circulate by main compressor device 35 refrigerant compressed with the solid arrow among Figure 27.

Carry out the independent operator scheme of rankine cycle operation, make connecting passage 510 close, by cutting off magnetic clutch 35c main compressor device 35 is disconnected from motor 10, and inflate compression machine 110B is as expansion gear work by switch valve 511.As represented with the dotted arrow among Figure 28, the refrigeration agent that is heated by heating equipment 43 circulates in rankine cycle by liquid pump 130a.

Carry out main cooling ﹠amp; The bi-directional mode of operation of rankine cycle operation makes connecting passage 510 be closed by switch valve 511, and main compressor device 35 is connected to motor 10 and is driven by motor 10, and inflate compression machine 110B is as expansion gear work.Then, as represented with the solid arrow among Figure 29, circulate in refrigeration cycle by main compressor device 35 refrigerant compressed, and as represented with the dotted arrow among Figure 29, the refrigeration agent that is heated by heating equipment 43 circulates in rankine cycle by liquid pump 130a.

Carry out the independent operator scheme of auxilliary cooling down operation, make connecting passage 510 open by switch valve 511, main compressor device 35 is connected to motor 10 and is driven by motor 10, and motor generator set 120 is as motor work, so that inflate compression machine 110B works as the auxiliary compressor device.Then,, in refrigeration cycle, circulate, and, circulate by auxiliary compressor device 110B refrigerant compressed as represented with the dotted arrow among Figure 30 by main compressor device 35 refrigerant compressed as represented with the solid arrow among Figure 30.

Carry out the independent operator scheme of auxilliary cooling down operation, make connecting passage 510 open by switch valve 511, main compressor device 35 disconnects from motor 10 and (or is connected to motor 10, but the operation of main compressor device 35 stops), and motor generator set 120 is as motor work, so that inflate compression machine 110B works as the auxiliary compressor device.Then, as represented, circulate by auxiliary compressor device 110B refrigerant compressed with the dash-dot arrows among Figure 31.

As mentioned above, utilize the simple structure of connecting passage, carry out five different mode of operations according to the 8th embodiment.

Fluid machinery 100 and 100A to 100D with regard to first to the 5th embodiment explanation can be used as the fluid machinery that is used for the 7th and the 8th embodiment equally.

The fluid machinery of rotary, piston type, blade type or any other type can be used as inflate compression machine 110, or independent of compressor set and expansion gear.

External-combustion engine can replace internal-combustion engine 10 as giving birth to thermic devices.

(the 9th embodiment)

The 9th embodiment shown in Figure 32 to 36.

The similar of the system of the refrigerant cycle shown in Figure 32 of described the 9th embodiment is in first embodiment shown in Fig. 2, and the similar of fluid machinery 100F is in the fluid machinery 100D shown in Figure 18 (the 5th embodiment).Therefore, those parts different with the 5th embodiment (Figure 18) with first embodiment (Fig. 2) after this only are described.

Refrigerated medium pump 130 is integrated in the fluid machinery 100 according to first embodiment.According to the 9th embodiment, the fluid machinery 100F branch in the liquid pump 130a (corresponding to refrigerated medium pump 130) and first bypass channel 41 is arranged.

As shown in Figure 33, fluid machinery 100F comprises inflate compression machine 110, motor generator set 120 and pulley gear 35a (corresponding to the pulley gear 35a of Fig. 4, and comprising pulley 35b and magnetic clutch 35c).Pulley gear 35a is connected with motor 10 via vee-belt, thereby fluid machinery 100F may be operably coupled to motor 10.

As shown in Figure 32 and 34, electronic control unit 400 comprises controller 12 and main ECU 401, and electronic signal transmits between controller 12 and main ECU 401.Input to main ECU 401 is: the A/C command signal, and the setting temperature of regulating according to Vehicular occupant and environmental conditions etc. determines; And temperature signal, detect by temperature transducer 15.According to the control valve unit 117 (solenoid valve 117h) of the SC sigmal control three-way valve 21 of above-mentioned input, liquid pump 130a, inflate compression machine 110, magnetic clutch 35c etc.

As shown in Figure 34, controller 12 comprises operation control device 410 and switching part 420, wherein operate control device 410 and be connected to main ECU 401, and switching part 420 be connected to battery 13 and motor generator set 120 (the corresponding U of stator 122 mutually, V mutually and the W phase winding).

Operation control device 410 is controlled the handover operation (opening or closing) of corresponding (six) COMM communication 420a to 420f of switching part 420 according to the command signal of coming autonomous ECU 401, thereby controls the rotating speed of motor generator set 120 by the electric power (electric current and/or voltage) that is controlled at motor generator set 120 places.When motor generator set 120 work, the operation control device 410 outputs signal relevant with electric current, voltage and/or rotating speed arrives main ECU 401.

Operation with explanation the 9th embodiment.When Vehicular occupant needed cooling down operation, compressor set 110 was connected with motor 10 via pulley gear 35a, made compressor set 110 be driven by motor 10.Under the situation that power operation stops temporarily, electric power is supplied with motor generator set 120, with the generation rotating force, thereby compressor set 110 is driven by compressor set 110.

When the operation as the inflate compression machine 110 of compressor set began, compressed refrigeration agent circulated in refrigeration cycle 30, to carry out cooling down operation.

When compressor set 110 by from the drive force of motor 10 time, motor generator set 120 is also driven by engine-driving power, to produce electric power, these electric power will be charged into battery 13.

In above-mentioned cooling down operation, the operation of liquid pump 130a stops, and switch valve 44 is opened, and three-way valve 21 switches to the position of hot water bypass mode, wherein in described hot water bypass mode, prevents to flow into heating equipment 43 from the hot water of motor 10.Solenoid valve 117h closes, to close inlet 116.

Under the situation that does not need cooling down operation and existence from fully many used heat of motor 10, for example, the temperature that is detected by temperature transducer 15 is higher than predetermined value, fluid machinery 100F disconnects from motor 10, or the operation by motor generator set 120 stops as the operation of the fluid machinery 100F of compressor set 110.

Switch valve 44 is opened, and three-way valve 21 switches to the another location, flows into heating equipment 43 so that allow from the hot water of motor 10.

The operation of liquid pump 130a begins, and will supply with the pressure of the refrigeration agent of heating equipment 43 from gas-liquid separator 32 to improve.At this moment, inlet 116 still is in its closed position by valve body 117d, and refrigeration agent can be from the hyperbaric chamber 114 flow into working rooms.Therefore, the pressure of refrigeration agent increases fast by the operation of liquid pump 130a.

Motor generator set 120 to rotate, begins its operations thereby drive removable spool 113 as electric motor operated on the direction opposite with compact model.The rotating speed of removable spool 113 is brought up to predetermined speed by the driving force of motor generator set 120.Then, solenoid valve 117h opens, and enters the mouth 116 to open, thereby 110 beginnings of inflate compression machine are as expansion gear work.

When obtaining the stable operation of rankine cycle 40, removable spool 113 rotates by the expansion of superheated refrigerant, with the output rotating force.Motor generator set 120 is the rotating force rotation by obtaining at expansion gear 110 then, and to produce electric power, these electric power will be charged into battery 13.

According to the rotating speed of the temperature of thermo-motor cooling water control inflate compression machine 110 (removable spools 113), so that can obtain maximum power in the operation period of rankine cycle 40.The temperature that flows through the refrigeration agent of heating equipment 43 is determined by the temperature of hot water.By improving the rotating speed of motor generator set 120, can reduce the pressure of refrigeration agent, thereby improve the speed of expansion of refrigeration agent, and, can increase the pressure of refrigeration agent, thereby reduce speed of expansion by reducing the rotating speed of motor generator set 120.Therefore, obtain effective expansion work at expansion gear 110, and keep the operation balance of rankine cycle 40, thereby the refrigeration agent that will have certain degree of superheat after expansion is supplied with condenser 31.As mentioned above, can obtain higher power.

According to the 9th embodiment, when the operation of motor generator set 120 becomes uncontrollable, force to stop the operation of rankine cycle 40, the result, in the operation period of rankine cycle 40, its normal running is left in the operation of motor generator set 120.To further specify this operation referring to the flow chart of Figure 35 and the Schedule of Figure 36 A to 36D.

At step S100, the operation of beginning rankine cycle 40, and in the normal control of step S110 execution to the operation of motor generator set 120.At step S120, electronic control unit 400 determines whether the operation of motor generator set 120 is in its normal state, that is, whether the operation of motor generator set 120 leaves its normal running.

Whether definitely normally carry out the operation of motor generator set 120 according to current signal.That is, when motor generator set 120 when the electric current of its operation period is in predeterminated target current range (leaving shown in Figure 36 A definite scope), electronic control unit 400 determines that the operation of motor generator set 120 is in its normal state.On the other hand, determine that when electric current was not within the target current scope, the operation of motor generator set 120 was in its normal state.Being defined as under the situation not in step S120, that is, when the operation of motor generator set 120 was in its normal state, process was got back to step S110, continued on for the normal control of the operation of motor generator set 120.Under the situation that being defined as in step S120 is, that is, in operation just often, process forwards step S130 to, stops the operation of liquid pump 130a.

At step S130, the operation of liquid pump 130a stops immediately.At step S140, whole COMM communication 420a to 420f of switching part 420 at first close, and then three COMM communication 420d to 420f on the ground connection side of battery 13 open, as shown in Figure 36 A.At step S150, the solenoid valve 117h of inflate compression machine 110 closes, to close inlet 116 by valve body 117d, as shown in Figure 36 C.

As mentioned above, owing to stopping of liquid pump 130a, the circulation of the refrigeration agent in the rankine cycle 40 stops, thereby the refrigeration agent of supplying with inflate compression machine 110 reduces.Three COMM communication 420d to 420f of ground connection side open, and being formed for the closed circuit of each winding U, V and W, thereby allow electric current to flow through closed circuit.As a result, produce electrodynamic power at motor generator set 120 places, to stop the rotation of motor generator set 120 fast, as shown in Figure 36 D.Then, inlet 116 is closed by valve body 117D, flows into expansion gear 110 to stop refrigeration agent fully, as shown in Figure 36 C.

As mentioned above, when the operation of leaving its normal running and being used for motor generator set 120 in the operation of the control that is used for motor generator set 120 becomes uncontrollable, can stop the operation of inflate compression machine 110 and motor generator set 120 safely.

That is, the result as preventing that inflate compression machine 110 from quickening can avoid may damaging of fluid machinery, and this rotating speed that can occur in fluid machinery surpasses when being scheduled to allow limit.And, can suppress the generation of noise, this may anti-locking mechanism 119 work of rotation when not being fine removable and fixedly produce between the spool.Owing to the rotation that electrodynamic power is used for stopping fast fluid machinery, so compare with the fluid machinery that wherein adopts mechanical braking power, the cost of described fluid machinery becomes lower.

For whether the operation of determining motor generator set 120 is in its normal working, can be used for the voltage of fluid machinery or the signal of rotating speed at step S120, rather than electric current.

Execution in step S130 to S150 when abnormal conditions take place is to stop the operation of rankine cycle 40.Yet only one of them of execution in step S130 (stopping liquid pump 130a), S140 (turning off all COMM communication, then open device 420d to 420f) and S150 (closing inlet by valve body) stops the operation of rankine cycle 40.

As the modification of the fluid machinery that is used for the 9th embodiment, can remove magnetic clutch 35c from fluid machinery 100F, as shown in Figure 37.According to this structure (fluid machinery 100G), when inflate compression machine 110 during as compressor device works, it is always driven by motor generator set 120.

The fluid machinery that can be used as the 9th embodiment with regard to the fluid machinery 100 and the 100A to 100D of first to the 5th embodiment explanation.

Figure 38 and 39 illustrates another modification of the 9th embodiment, has wherein revised the electrodynamic circuit that is used for motor generator set 120.

According to described modification, as shown in Figure 38, electrodynamic circuit 125 with resistance 125a and COMM communication 125b is arranged between two the winding U and V of stator 122, operationally to form closed circuit by winding U and V, resistance 125a and COMM communication 125b.

As shown in Figure 39, when detecting the abnormal work situation of motor generator set 120 at step S120, after the operation that stops liquid pump 130a, COMM communication 125b closes at step S141.

As a result, electric current flows through the closed circuit of winding U and V and resistance 125a, is used for the electrodynamic power of motor generator set 120 with generation.

Depend on the circumstances, can remove step S150 from the process shown in Figure 39.

(the tenth embodiment)

The present invention of above-mentioned the 9th embodiment can be applicable to other system architecture form.

In the tenth embodiment shown in Figure 40 and 41, wherein the system architecture of the refrigeration cycle shown in Figure 40 is identical with first embodiment shown in Fig. 2, and the fluid machinery that can be used as Figure 40 with regard to the fluid machinery 100 and the 100A to 100D of first to the 5th embodiment explanation.So detailed.

The structure of electronic control unit 400, more specifically, the structure of the controller 12 of Figure 40 identical with shown in Figure 34.

According to the flow chart of Figure 41, when detecting the abnormal work situation of motor generator set 120, with the mode control switch device (420a to 420f) identical, to stop the operation of motor generator set 120 fast with the 9th embodiment at step S120.In the present embodiment, omit the step (S130) that is used to stop liquid pump 130a.

(the 11 embodiment)

The 11 embodiment shown in Figure 42 and 43.

The system architecture of the refrigeration cycle shown in Figure 42 of described the 11 embodiment is similar to second embodiment shown in Fig. 4, and the similar of fluid machinery 100H is in the fluid machinery shown in Fig. 1 100.Therefore, those parts different with second embodiment (Fig. 4) with first embodiment (Fig. 1) after this will only be described.

According to the 11 embodiment, expansion gear is made in fluid machinery 100H special use, and identical with second embodiment shown in Fig. 4, compressor set is made in 35 special uses of main compressor device.

Although the detailed mechanism of not shown fluid machinery 100H, its basic structure is similar to the fluid machinery 100 shown in Fig. 1.Yet, because expansion gear is made in fluid machinery 100H special use, so can make some modifications to the fluid machinery 100 of Fig. 1.For example, remove floss hole 115 and escape cock 117a from the fluid machinery 100 of Fig. 1, and enter the mouth 116 and inlet valve 117 (chamber 117e, solenoid valve 117h etc. are pressed in valve body 117d, back) formation identical to those shown in Fig. 1, enter the mouth 116 thereby when rankine cycle work, open and/or close.

System architecture by the refrigeration cycle shown in the structure formation Figure 42 that revises Fig. 4 makes that fluid machinery 100H can be specially as expansion gear work.More specifically, be provided with expansion gear bypass channel 36, be used to make the high pressure side of expansion gear 100H to be communicated with, and open valve 36a and be arranged in the expansion gear bypass channel 36, be used to open or close passage 36 with low voltage side.The operation of switch valve 36a is by electronic control unit 400 controls.

Identical with Figure 32 and 34, electronic control unit 400 comprises main ECU 401 and controller 12, and electronic signal transmits between controller 12 and main ECU 401.Input to main ECU 401 is: the A/C command signal, and the setting temperature of regulating according to Vehicular occupant and environmental conditions etc. determines; And temperature signal, detect by temperature transducer 15.According to the control valve unit 117 (solenoid valve 117h) of Signal-controlled switch valve 36a, the expansion gear 100H of above-mentioned input, magnetic clutch 35c etc.

Controller 12 is according to the electric power (electric current and/or voltage) of the command signal control motor generator set 120 that comes autonomous ECU 401, thus the rotating speed of control motor generator set 120.At motor generator set 120 duration of works, the controller 12 also output signal relevant with electric current, voltage and/or rotating speed arrives main ECU401.Controller 12 is used to detect the abnormal work situation of motor generator set 120 also as abnormal condition detecting device work.

When rankine cycle 40 duration of works detect the abnormal work situation by controller 12, stop the operation of rankine cycle 40 according to the process shown in Figure 43.

More specifically, whether controller 12 is determined at step S200A exist because motor generator set 120 has left the abnormal work situation that its normal running forms.At step S200A, carry out definite according to the rotating speed of motor generator set 120.When rotating speed was in predetermined speed range, controller 12 determined that motor generator set 120 is in normal state, and determines abnormal state in rotating speed is not outside prespecified range.

Determine to exist under the situation of abnormal work situation at step S200A at controller 12, process forwards step S210 to,, execution is used to stop the operation of expansion gear 110H and motor generator set 120 here.

That is, open switch valve 36a at step S210.Close solenoid valve 117h at step S220, to close inlet 116 by valve body 117d.

As a result, the high pressure side of expansion gear 110H and low voltage side communicate with each other by switch valve 36a, and prevent from the superheated refrigerant of self-heating apparatus 43 to flow into expansion gear 110H.Thereby, the pressure of high pressure side and low voltage side is equated, and from removing the driving energy (power) of expansion gear 110H here.By utilizing valve body 117d to close inlet 116, stop refrigeration agent fully and flow into expansion gear 110H.

As mentioned above, prevent the acceleration rotation of expansion gear 110H, and when the operation that its normal running and motor generator set 120 are left in the control operation that is used for motor generator set 120 becomes uncontrollable, can stop the operation of expansion gear 110H and motor generator set 120 safely.

In the above-described embodiments, at step S200A, with the rotating speed of motor generator set 120 information of determining its abnormal work situation that acts on.Yet, also can with voltage and/or current related signal with acting on definite information.

And, can with rankine cycle 40 in the pressure of refrigeration agent and/or the relevant signal of temperature with acting on definite information.In this case, will be used for detecting the pressure of refrigeration agent of rankine cycle 40 and/or the pressure transducer and/or the temperature transducer of temperature and be arranged on the appropriate location, and determine that detected pressure and/or temperature are whether in predetermined pressure or temperature range.

And expansion gear bypass channel 36 and switch valve 36a available pump bypass channel and another switch valve are replaced, and wherein when another switch valve was opened, the pump bypass channel made the high pressure side of refrigerated medium pump 130 be communicated with its low voltage side.This modification according to the pump bypass channel is arranged, stops the circulation (pressure of refrigeration agent increases) of refrigeration agent, finally stops the operation of expansion gear 110H.And, except expansion gear bypass channel 36, the said pump bypass channel can be set.And bypass channel can be arranged on and make the circulation of the refrigeration agent stop to be used for rankine cycle 40 substantially or any other position that prevents the operation of rankine cycle 40 substantially, for example walks around the position of heating equipment 43 or condenser 31 at refrigeration agent.

And control valve unit 17 is provided with the inlet side place of expansion gear 110H in the above-described embodiments.Yet the control valve unit that flows that is used for stopping the refrigeration agent of rankine cycle 40 also can be arranged on any other position, for example at the inlet side place of refrigerated medium pump 130.

And, can remove the step S210 of Figure 43 and of S220 from the process of the operation that is used for stopping rankine cycle 40.

(the 11 embodiment's modification)

Another modification of the 11 embodiment will be described referring to Figure 44.

According to described modification, controller 12 is further determined the abnormal conditions of the operation in the rankine cycle 40 to the control signal of motor generator set 120 according to slave controller.

More specifically, controller 12 designs like this, make the result of the abnormal conditions that in as motor generator set 120 generation is certain, excess current flows in controller 12, and (or overvoltage is applied to controller 12, or the temperature of controller become be higher than predetermined allowable limit) situation under, it stops the control of motor generator set 120.This is in order to protect controller 12 self.Step S200B in Figure 44, electronic control unit 400 detects controller 12 in order to protect the situation of the control that self stops motor generator set 120.During this situation, process forwards step S210 and S220 to, in the mode identical with the process of Figure 43, opens switch valve 36a and closes inlet 116 by valve body 117d in detecting.

According to above-mentioned modification, also can stop the operation of expansion gear 110H and motor generator set 120 fast under the abnormal conditions of control of motor generator set 120 even stop to be used at controller 12.

(the 11 embodiment's modification)

Another modification referring to Figure 45 to 46 explanation the 11 embodiment.

In above-mentioned the 9th to the 11 embodiment, when satisfying certain condition, for example, when having fully many used heat, begin the operation of rankine cycle 40 and motor generator set 120, and when any abnormal conditions taking place, stop the operation of rankine cycle 40 and motor generator set 120.According to described modification, as shown in Figure 45, be provided with hand switch 500, so that utilize the intention (handover operation) of Vehicular occupant to begin or stop the operation of rankine cycle 40 and motor generator set 120.As shown in Figure 45, the signal of hand switch 500 is input in the electronic control unit 400.

As shown in Figure 46, when electronic control unit 400 when determine there is the command signal of the operation that is used to stop rankine cycle in step S200C, process forwards step S210 and S220 to, with identical with the process of Figure 43, open switch valve 36a and closes inlet 116 by valve body 117.Therefore, can stop the operation of rankine cycle 40 and motor generator set 120 fast.

Also be provided with alternator for example at vehicle except rankine cycle, be used to collect other dynamoelectric and power generation devices such as power generator of deceleration energy, and the generation of electric power is fully under the situation by the control of total power generation system, and step S200C is with such step replacement: electronic control unit determines whether to exist the command signal that is used to stop from the operation of the rankine cycle 40 of total power generation system.

In having the electric power generation equipment of a plurality of power generating devices, optimal power generating device is selected in operation for this reason, so that can produce electric power most effectively.In described equipment, must finish switching fast from an electricity generating device to the operation of another electricity generating device.Therefore, be used for operation that electric power produces generating from rankine cycle switch to by be used for gathering speed reduce energy the generating of power generator the time, must stop the operation of rankine cycle fast.

(the 11 embodiment's modification)

The 11 embodiment's a modification again will be described referring to Figure 47.

In rankine cycle 40, for example, as shown in Figure 45, when closing the ignition switch (not shown), the operation of electronic control unit 400 and motor generator set 120 stops.Normally open the type solenoid valve usually as being arranged on switch valve 36a in the bypass channel 36, thereby when the electric current of sever supply valve 36a, open switch valve 36a.Normal closed type electromagnetic valve is usually as being provided with control valve unit 117, thereby when the electric current of sever supply control valve unit 117, off switch valve 36a.

Utilize this layout,, also continue the operation of expansion gear 110H by residual pressure at the refrigeration agent of the upstream side of expansion gear 110H even when ignition switch is closed.In addition, because stop the operation that rear motor motor 120 is not applied to expansion gear 110H from motor 120.

Therefore, modification according to the 11 embodiment, when the step S200D in Figure 47 detects closing of ignition switch, the switch valve 36a of bypass channel 36 opens (at step S210), and control valve unit 117 cuts out (inlet 116 cut out by valve body 117d) at step S220, thereby stops the operation of expansion gear 110H fast and safely.

In the above-described embodiments, power generator (motor generator set) 120 is interpreted as not having the generator of phase detector.Yet rotational position sensor can be set on the generator, is used for the rotational position of detection rotor about its stator, thus the operation of control generator.

Replacement electrodynamic operation can be set to mechanical brake equipment on the motor generator set 120, thereby can stop the operation of motor generator set 120 fast.

The above embodiment of the present invention can further be applied to such used heat and utilize equipment, wherein, refrigeration cycle and rankine cycle is set independently, and motor generator set 120 was arranged with the inflate compression machine in 110 minutes.

Expansion gear bypass channel 36 can be replaced with the bypass channel between upstream side that is connected heating equipment 34 and the downstream side, thereby when the switch valve in being arranged on bypass channel was opened, refrigeration agent can be walked around heating equipment 34.As a result, can prevent that the refrigeration agent that flows into expansion gear is heated, thereby can stop the operation of rankine cycle (expansion gear 110H).

As mentioned above, in the 9th to the 11 embodiment, illustrated to be used to control chiller plant, in particular for the whole bag of tricks of the operation that stops rankine cycle and expansion gear.

Claims (7)

1. a used heat that is used for internal-combustion engine utilizes equipment, comprising:

Rankine cycle (40) has the pump (130a) of the working fluid cycles of making and produces the expansion gear (110) of driving force by making to be used to expand from the heated working fluid of the used heat of internal-combustion engine (10);

Motor generator set (120) is by the drive force of expansion gear (110) generation, to produce electric power; And

Control unit (400) is used to control the operation of rankine cycle (40) and motor generator set (120),

Wherein, when the control signal that is used for motor generator set (120) was in outside the target zone, control unit (400) stopped the operation of pump (130a), wherein

Motor generator set (120) comprise and have a plurality of staor winding (U, V, brushless generator W),

Described control unit (400) comprises having many switching parts to electrical switching apparatus (420a-420f) (420), and every pair of electrical switching apparatus all has battery side COMM communication (420a-420c) and ground connection side COMM communication (420d-420f),

The operation of motor generator set (120) by these electrical switching apparatus (420a-420f) unlatching and cut off controlled,

Wherein after the operation of pump (130a) stops, control unit (400) is opened ground connection side COMM communication (420d-420f), be formed for each staor winding (U, V, closed circuit W), thus stop the operation of expansion gear (110).

2. a used heat that is used for internal-combustion engine utilizes equipment, comprising:

Rankine cycle (40) has the pump (130a) of the working fluid cycles of making and produces the expansion gear (110) of driving force by making to be used to expand from the heated working fluid of the used heat of internal-combustion engine (10);

Motor generator set (120) is by the drive force of expansion gear (110) generation, to produce electric power; And

Control unit (400) is used to control the operation of rankine cycle (40) and motor generator set (120),

Wherein, when the control signal that is used for motor generator set (120) was in outside the target zone, control unit (400) stopped the operation of pump (130a), wherein

Motor generator set (120) comprise and have a plurality of staor winding (U, V, brushless generator W),

Described control unit (400) comprises having many switching parts to electrical switching apparatus (420a-420f) (420), and every pair of electrical switching apparatus all has battery side COMM communication (420a-420c) and ground connection side COMM communication (420d-420f),

The operation of motor generator set (120) by these electrical switching apparatus (420a-420f) unlatching and cut off controlled,

Be provided with control valve unit (117,300), described control valve unit is used for opening and closing the fluid passage of the working fluid that is used to expansion gear to be supplied to (110),

Wherein, after the operation of pump (130a) stops, control unit (400) is opened ground connection side COMM communication (420d-420f), to be formed for each staor winding (U, V, closed circuit W), and control valve device (117,300) close the fluid passage, thereby stop the operation of expansion gear (110).

3. a used heat that is used for internal-combustion engine utilizes equipment, comprising:

Rankine cycle (40) has the pump (130a) of the working fluid cycles of making and produces the expansion gear (110) of driving force by making to be used to expand from the heated working fluid of the used heat of internal-combustion engine (10);

Motor generator set (120) is by the drive force of expansion gear (110) generation, to produce electric power; And

Control unit (400) is used to control the operation of rankine cycle (40) and motor generator set (120),

Wherein, when the control signal that is used for motor generator set (120) was in outside the target zone, control unit (400) stopped the operation of pump (130a), wherein

Motor generator set (120) comprises brushless generator, described brushless generator have a plurality of outs of phase staor winding (U, V, W),

Described control unit (400) comprises having many switching parts to electrical switching apparatus (420a-420f) (420), and every pair of electrical switching apparatus all has battery side COMM communication (420a-420c) and ground connection side COMM communication (420d-420f),

The operation of motor generator set (120) by these electrical switching apparatus (420a-420f) unlatching and cut off controlled,

Control unit (400) further comprises the electrical braking circuit (125) with resistance (125a) and switching member (125b), described electrical braking circuit (125) is connected to staor winding (U, V, W) at least one, forming closed circuit when closing at switching member (125b), and

After the operation of pump (130a) stopped, control unit (400) was closed switching member (125b), so that stop the operation of expansion gear (110).

4. a used heat that is used for internal-combustion engine utilizes equipment, comprising:

Rankine cycle (40) has the pump (130a) of the working fluid cycles of making and produces the expansion gear (110) of driving force by making to be used to expand from the heated working fluid of the used heat of internal-combustion engine (10);

Motor generator set (120) is by the drive force of expansion gear (110) generation, to produce electric power; And

Control unit (400) is used to control the operation of rankine cycle (40) and motor generator set (120),

Wherein, when the control signal that is used for motor generator set (120) was in outside the target zone, control unit (400) stopped the operation of pump (130a), wherein

Motor generator set (120) comprises brushless generator, described brushless generator have a plurality of outs of phase staor winding (U, V, W),

Described control unit (400) comprises having many switching parts to electrical switching apparatus (420a-420f) (420), and every pair of electrical switching apparatus all has battery side COMM communication (420a-420c) and ground connection side COMM communication (420d-420f),

The operation of motor generator set (120) by these electrical switching apparatus (420a-420f) unlatching and cut off controlled,

Control unit (400) further comprises the electrical braking circuit (125) with resistance (125a) and switching member (125b), described electrical braking circuit (125) is connected to staor winding (U, V, W) at least one, forming closed circuit when closing at switching member (125b), and

Control valve unit (117,300) is set for the fluid passage that opens and closes the working fluid that is used for expansion gear to be supplied to (110),

Wherein, in order to stop the operation of expansion gear (110), after the operation of pump (130a) stopped, control unit (400) was closed switching member (125b), and control valve device (117,300) to be closing the fluid passage, thereby stopped the operation of expansion gear (110).

5. utilize equipment according to each the described used heat in the claim 1 to 4, wherein said control signal is come the electric current of automotor-generator (120).

6. utilize equipment according to each the described used heat in the claim 1 to 4, wherein said control signal is come the voltage of automotor-generator (120).

7. utilize equipment according to each the described used heat in the claim 1 to 4, wherein said control signal is the rotating speed of motor generator set (120).

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