CN102812207A

CN102812207A - Fluid machine

Info

Publication number: CN102812207A
Application number: CN2011800154983A
Authority: CN
Inventors: 中村慎二; 和田博文
Original assignee: Sanden Corp
Current assignee: Sanden Corp
Priority date: 2010-03-24
Filing date: 2011-03-22
Publication date: 2012-12-05
Also published as: EP2551449A4; CA2792544A1; WO2011118562A1; KR20120139770A; EP2551449A1

Abstract

A fluid machine (14, 102, 108) is provided with: fluid units (16, 20) which have rotating bodies (40, 66) and into which and from which an operating fluid flows as the rotating bodies (40, 66) rotate; and a drive shaft (72) to which the rotating bodies (40, 66) of the fluid units (16, 20) are connected. An Oldham's coupling (85) is provided to a shaft section of the drive shaft (72), the shaft section being located between the rotating bodies (40, 66).

Description

Fluid machinery

Technical field

The present invention relates to a kind of fluid machinery, in detail, relate to the fluid machinery in a kind of Lan Ken loop that is applicable to automobile-used used heat utilized device.

Background technique

Constitute the for example Lan Ken loop of the waste heat utilization system of the internal-combustion engines such as motor of vehicle (Japanese: ラ Application キ Application loop) have confession working fluid (thermal medium) circuit circulation road, and in the circulation road, be inserted with pump, vaporizer (heat exchanger), expander and condenser successively.

Pump for example by motoring so that working fluid cycles.Working fluid receives used heat when flowing through vaporizer, and in expander, expands.At this moment, the thermal power transfer of working fluid becomes torque and is outputed to the outside, for example is used to make condenser is carried out air cooled fan rotation.

As the fluid machinery that is applicable to above-mentioned Lan Ken loop, patent documentation 1 discloses a kind of fluid machinery, in this fluid machinery, and the shared live axle of pump, expander and motor.

The existing technology document

Patent documentation

Patent documentation 1: Japanese Patent Laid is opened the 2005-30386 communique

Summary of the invention

Invent technical problem to be solved

Yet, in the above-mentioned fluid machinery that comprises a plurality of element of fluids, each element of fluid is individually carried out job evaluation, and the element of fluid that will satisfy evaluation criterion is assembled with each other and accomplishes assembling, improved the manufacturing efficiency of fluid machinery.

Yet in the fluid machinery of above-mentioned patent documentation 1, live axle is made up of a member, and therefore, the job evaluation of individually carrying out each element of fluid is difficult.

Particularly; When the work of the portion of mechanism that estimates expander, the torque when measuring live axle non-loaded, but along with the rotation of live axle; The solid of rotation of pump also rotates; Therefore, determine non-loaded the time the precision of torque reduce, and then have the such problem of performance that can not estimate expander suitably and can not guarantee fluid machinery.

In addition; In expander or pump, produce under the situation of unfavorable condition; Need fluid machinery integral body is decomposed with unit place under repair, replacing to unfavorable condition, under the worst situation, also possibly have to discard fluid machinery because of the bad element of a member in expander and the pump.By this, in the fluid machinery of above-mentioned patent documentation 1, on efficient that improves the production fluid machinery and maintenance, still there is technical problem.

In addition, though the fluid machinery of a plurality of element of fluids of above-mentioned binding live axle axially on long and maximize easily, in above-mentioned existing technology, the special miniaturization of considering to promote fluid machinery.

The present invention is in view of above-mentioned technical problem and doing, and its purpose is to provide a kind of and can guarantees performance and can enhance productivity and maintenance, also can realize the fluid machinery of miniaturization.

The technological scheme that the technical solution problem is adopted

Fluid machinery of the present invention comprises: a plurality of element of fluids, and these element of fluids have solid of rotation, and along with the rotation of above-mentioned solid of rotation makes the working fluid inflow and outflow; And live axle, the above-mentioned solid of rotation of each of this live axle and above-mentioned a plurality of element of fluids links, and on the axial region between the above-mentioned solid of rotation of above-mentioned live axle, is provided with the crosshead coupling.

Comparatively it is desirable to, above-mentioned crosshead coupling comprises slide block, and this slide block is made up of with the main part that is formed with above-mentioned fastening portion the fastening portion relative with above-mentioned axial region, and above-mentioned slide block is contained in accepting hole, and this accepting hole is formed at above-mentioned axial region.

Comparatively it is desirable to, above-mentioned a plurality of element of fluids comprise expansion cell, and this expansion cell has first solid of rotation, along with the rotation reception working fluid of above-mentioned first solid of rotation, and after the working fluid that receives is expanded, this working fluid are discharged.

Comparatively it is desirable to, above-mentioned a plurality of element of fluids comprise the pump unit, and this pump unit has second solid of rotation, along with the rotation of above-mentioned second solid of rotation sucks above-mentioned working fluid, and after the pressure of the above-mentioned working fluid that makes suction rises, this working fluid are discharged.

Comparatively it is desirable to; Above-mentioned a plurality of element of fluid comprises compression unit; This compression unit has the 3rd solid of rotation, along with the rotation of above-mentioned the 3rd solid of rotation sucks above-mentioned working fluid, and after the above-mentioned working fluid that sucks is compressed, this working fluid is discharged.

Comparatively it is desirable to, above-mentioned fluid machinery comprises generator unit, and this generator unit has the 4th solid of rotation that links with above-mentioned live axle, and along with the rotation of above-mentioned the 4th solid of rotation produces electric power.

Comparatively it is desirable to; Above-mentioned fluid machinery comprises the generating driver element; This generating driver element has the 5th solid of rotation that links with above-mentioned live axle, and along with the rotation of above-mentioned the 5th solid of rotation produces electric power, in addition; Also utilize external power to make above-mentioned the 5th solid of rotation rotation, and along with the rotation of above-mentioned the 5th solid of rotation drives above-mentioned live axle.

Comparatively it is desirable to, above-mentioned fluid machinery comprises power transfer unit, and this power transfer unit and above-mentioned live axle link, and between above-mentioned live axle and outside transferring power.

The invention effect

According to the present invention; Because the axial region between the solid of rotation of live axle is provided with the crosshead coupling, therefore, when making fluid machinery; It is independent of individually to carry out the job evaluation of element of fluid that each element of fluid is separated at crosshead coupling place; Thereby can estimate the work of element of fluid suitably, therefore, can guarantee that the performance of fluid machinery also can be enhanced productivity.

In addition; According to the present invention; In arbitrary unit of each element of fluid, produce under the situation of unfavorable condition; Only the unit with unfavorable condition just separates at crosshead coupling place and can avoid into the unit of changing unfavorable condition fluid machinery integral body being decomposed to this unit place under repair, replacing, thereby can improve the maintenance of fluid machinery.

In addition, according to the present invention, because the structure of crosshead coupling is simpler than tightened-up structures such as use splines, therefore, and the centering operation in the time of more easily carrying out the job evaluation of element of fluid, this helps further to improve the efficient of producing fluid machinery.

In addition, according to the present invention, the displacement that the crosshead coupling allows the footpath of axle to make progress; On the other hand; The angle of swing error that produces because of axle offset (eccentric, drift angle) can be reduced, and angle of swing can be transmitted accurately, thus permission axle offset when integrated with a plurality of element of fluids; Therefore, can guarantee the performance of fluid machinery.

In addition,, can prevent the situation that slide block comes off when through slide block relative axial region being installed to axial region according to the present invention, thus operation property variation can prevent to assemble fluid machinery the time.Particularly, can prevent the situation that slide block comes off when carrying out the job evaluation of element of fluid effectively in the centering operation, thereby can further easily carry out above-mentioned centering operation, therefore, can further improve the manufacturing efficiency of fluid machinery.

In addition, after having assembled fluid machinery, can slide block be embedded in axial region, therefore, can the length of axial region and the shorten length of live axle be equivalent to the length of the shaft length of slide block, thereby can realize the further miniaturization of fluid machinery.

Description of drawings

Fig. 1 is the figure of vehicle used heat utilized device structure that schematically representes to be provided with the fluid machinery of first mode of execution.

Fig. 2 is the signal longitudinal section that is applicable to the fluid machinery in the device of Fig. 1.

Fig. 3 is the signal longitudinal section of the fluid machinery of second mode of execution.

Fig. 4 is the signal longitudinal section of the fluid machinery of the 3rd mode of execution.

Fig. 5 is the signal longitudinal section of the fluid machinery of the 4th mode of execution.

Fig. 6 is the stereogram of the accepting hole of presentation graphs 5.

Fig. 7 is the stereogram of the slide block of presentation graphs 5.

Fig. 8 is the stereogram of end face of the driven shaft portion of presentation graphs 5.

Fig. 9 is the stereogram of accepting hole that constitutes the crosshead coupling of the 5th mode of execution.

Figure 10 is the plan view of the state of accommodating of the slot part of the expression wheel shaft bottom that is contained in the accepting hole that is formed on Fig. 9.

Figure 11 is when being illustrated in the assembling operation that carries out fluid machinery among Fig. 9, make the circumferentially slightly plan view of the state of rotation of wheel shaft along axial region.

Embodiment

Fig. 1 representes to be used to use the used heat utilized device 1 of the fluid machinery 14 of first mode of execution, and used heat utilized device 1 for example reclaims the heat of the waste gas of discharging from vehicle motor (internal-combustion engine) 10.For this reason, used heat utilized device 1 comprises Lan Ken loop 12, and Lan Ken loop 12 has confession working fluid (thermal medium) circuit circulation road 13.Circulation road 13 for example is made up of pipe, pipeline.

In circulation road 13,, working fluid is inserted with the pump unit (element of fluid) 16 of fluid machinery 14 for being flowed; In addition; Observe from the direction that working fluid flows, the downstream part in pump unit 16 is inserted with expansion cell (element of fluid) 20 and the condenser 22 of heater 18, fluid machinery 14 successively.That is, pump unit 16 sucks working fluid in condenser 22 sides, and after the rising of the working fluid pressure after making suction, this working fluid is discharged towards heater 18.The working fluid of 16 discharges is in the liquid condition of cryogenic high pressure from the pump unit.

Heater 18 is heat exchangers, has: the low temperature stream 18a that constitutes the part on circulation road 13; And the high temperature stream 18b that can carry out heat exchange with low temperature stream 18a.High temperature stream 18b inserts for example from motor 10 extended outlet pipes 24.Therefore, when flowing through heater 18, the working fluid of the liquid condition of cryogenic high pressure receives the heat of the waste gas that produces in the motor 10.By this, working fluid is heated and becomes the superheated vapor state of HTHP.

The expansion cell 20 of fluid machinery 14 expands the working fluid that becomes the superheated vapor state, and by this, working fluid becomes the superheated vapor state of high-temperature low-pressure.

Condenser 22 is heat exchangers, makes the working fluid and the extraneous gas that flow out from expansion cell 20 carry out heat exchange and condensation, thereby makes this working fluid become the liquid condition of low-temp low-pressure.Particularly, near condenser 22, dispose electric fan (not shown), be used to from vehicle front wind, come the cooling work fluid from the wind of electric fan.Device 22 condensed working fluids quilts suction pump unit 16 once more and circulation in circulation road 13 are condensed.

At this, above-mentioned expansion valve 20 can not only make working fluid expand, and can also the thermal power transfer of working fluid be become torque (rotating force) and output.In order to utilize from the torque of expansion cell 20 outputs, on expansion cell 20, except pump unit 16, also linking has generator unit 26.On generator unit 26, moderately be connected with the electrical loads 28 such as for example battery of using or storing the electric power that is produced.

In addition, fluid machinery 14 has the power transfer unit 30 that is used for torque input, output, and power transfer unit 30 is magnetic clutchs for example.Magnetic clutch is worked according to the control of ECU (electric control device) 31, intermittently transmitting torque.

More detailed, as shown in Figure 2, by series connection binding successively, live axle 72 comprises through live axle 72 for expansion cell 20, generator unit 26 and pump unit 16: the driving shaft part 72A that leans on generator unit 26 and expansion cell 20 1 sides; Depend on the 72B of driven shaft portion of pump unit 16 1 sides; And the slide block 87 that is disposed at

axial region

72A, 72B centre.

Expansion cell 20 is with the eddy type expander of cyclotron mechanism 21 as drive portion.The opening of the cup-shaped housing 32 (expansion cell is used housing) of expansion cell 20 is roughly covered by partition 34, but is formed with through hole in the central authorities of partition 34.

With housing 32 internal fixation static vortex disk 36 is arranged at expansion cell, mark off hyperbaric chamber 38 in the back side of static vortex disk 36.Hyperbaric chamber 38 is via being formed at expansion cell with the part on the ingress port of housing 32 and the circulation road 13 that is connected with ingress port and be communicated with heater 18.

Face side at static vortex disk 36 disposes movable orbiting scroll (solid of rotation, first solid of rotation) 40 with the mode with these static vortex disk 36 engagements.Between static vortex disk 36 and movable orbiting scroll 40, divide the expansion chamber 42 that the working fluid of sening as an envoy to expands, divided the low pressure chamber 44 that receives as to the working fluid after expanding around the movable orbiting scroll 40.Substantial middle at the substrate of static vortex disk 36 is formed through introduction hole 46, through this introduction hole 46 the radially expansion chamber 42 of central authorities that is positioned at static vortex disk 36 and movable orbiting scroll 40 is communicated with hyperbaric chamber 38.

When expanding in the expansion chamber 42 of working fluid in central authorities radially, the volume increase of expansion chamber 42, and expansion chamber 42 moves towards radial outside along the spiral wall of static vortex disk 36 and movable orbiting scroll 40.In addition, expansion chamber 42 finally is communicated with low pressure chamber 44, and the working fluid after the expansion flows into low pressure chamber 44.Low pressure chamber 44 reaches the part on the circulation road 13 that is connected with this outlet port via not shown outlet port and is communicated with condenser 22.

Along with the expansion of above-mentioned working fluid, movable orbiting scroll 40 is with respect to static vortex disk 36 circumnutation of revolving round the sun, and this revolution circumnutation is converted to by cyclotron mechanism 21 and rotatablely moves.

That is, formed axle sleeve at the substrate back of movable orbiting scroll 40, in axle sleeve, disposing can counterrotating eccentric bush 50 through needle bearing 48.Be inserted with crank pin 52 in the eccentric bush 50, crank pin 52 is outstanding prejudicially from the disc 54 of disc-shape.From disc 54 with crank pin 52 opposite sides coaxially one be extruded with axial region 56, axial region 56 is supported to and can rotates by partition 34 through radial bearings such as ball bearing 58, and links with driving shaft part 72A through overrunning clutch 95.That is, movable orbiting scroll 40 is supported to and can rotates by partition 34, and the revolution circumnutation of movable orbiting scroll 40 is converted into rotatablely moving of axial region 56, and this is rotatablely moved is passed to driving shaft part 72A.。

Cyclotron mechanism 21 is for the rotation that stops the movable orbiting scroll 40 in the revolution circumnutation and bear pushing force and be provided with for example ball formula coupling piece 60, and ball formula coupling piece 60 is disposed between the part relative with this peripheral part of peripheral part and partition 34 of substrate of movable orbiting scroll 40.

At this, along with the work of cyclotron mechanism 21, static vortex disk 36 has sliding contact each other slightly with gap with movable orbiting scroll 40.

Specifically, static vortex disk 36 and movable orbiting scroll 40 are located at the helical coil (Japanese: scrollwork I ラ Star プ) 36b, 40b formation of the inner surface of

substrate

36a, 40a respectively by

substrate

36a, 40a and one.Front end at

helical coil

36b, 40b is respectively equipped with end seal (Japanese: チ Star プシ one Le) 37; Through these end seals 37 make

helical coil

36b, 40b and and these helical coil 36b, substrate 40a, the 36a of configuration have sliding contact each other slightly with gap to 40b relatively respectively; Through spiral wall mutual sliding contact of

helical coil

36b, 40b, thereby form spiral helicine expansion chamber 42 around the axis of

substrate

36a, 40a in the part.

Helical coil

36b, 40b and and these

helical coil

36b, 40b respectively relatively substrate 40a, each gap between the 36a of configuration, be that guarantee through the space that between the mating face of expansion cell with housing 32 and partition 34, forms in gap between static vortex disk 36 and the movable orbiting scroll 40.Each junction plane is made up of with the end wall 32a of housing 32 and the end wall 34a of partition 34 expansion cell, and between above-mentioned each

end wall

32a, 34a, clipping for example metal clamping plate in the form of a ring is pad 39.When utilizing not shown binder bolt that expansion cell is linked with partition 34 with housing 32; Thickness, quantity through changing this pad 39 can be regulated the gap length between static vortex disk 36 and the movable orbiting scroll 40; When expansion cell 20 running, movable orbiting scroll 40 is impartial and be applied to expansion cell reliably with housing 32 sides to the pressing force of static vortex disk 36 on the axial direction of live axle 72.

Whether the adjusting of the gap length between this static vortex disk 36 and the movable orbiting scroll 40 can be that purpose is carried out with respect to revolve round the sun swimmingly the circle round job evaluation of this expansion cell 20 of static vortex disk 40 with movable orbiting scroll 36.

The regulating method of gap length is following: static vortex disk 36 and movable orbiting scroll 40 are temporarily installed each other; And the torque sensor (evaluator) of not shown motor etc. is connected with live axle 72A; Measure the load torque when making live axle 72A rotation, and extrapolate the gap length between static vortex disk 36 and the movable orbiting scroll 40 from this load torque.In addition, as long as static vortex disk 36 and the gap length between the movable orbiting scroll 40 extrapolated from this load torque measured load are in the gap allowed band of being confirmed by CLV ceiling limit value and lower limit, just can static vortex disk 36 and movable orbiting scroll 40 formally be installed together.Through an operation in the manufacturing process of this fluid machinery 14 is that load torque inspection operation can be managed the gap length between static vortex disk 36 and the movable orbiting scroll 40.

On the other hand, pump unit 16 for example is a trochoid pump, but also can be the externally connected type gear pump.Pump unit 16 has the housing cylindraceous (the pump unit is with housing 62) of both ends open, disposes the lid 64 of one group ring-type across predetermined distance in the pump unit in housing 62.Between these lids 64, dispose internal tooth (solid of rotation, second solid of rotation) 66, in addition, also external tooth 68 is arranged with the mode fixed configurations that surrounds internal tooth 66 with revolvable mode.

Between internal tooth 66 and external tooth 68, mark off the pump chamber 70 of the pressure rising that makes working fluid along with the rotation of internal tooth 66, working fluid reaches the circulation road 13 that is connected with this inhalation port via not shown inhalation port a part is drawn in the pump chamber 70 from condenser 22.In addition, the working fluid after pump chamber 70 internal pressures rise reaches the part on the circulation road 13 that is connected with this discharge port via not shown discharge port and discharges towards heater 18.

In order to make internal tooth 66 rotations, internal tooth 66 is fixed to and can rotates with the 72B of driven shaft portion one.

The end of the 72B of driven shaft portion link have as after state the magnetic clutch of power transfer unit 30, the other end of live axle 72 across after state overrunning clutch 95 and link the axial region 56 that cyclotron mechanism 21 is arranged.

At this, on the movable orbiting scroll 40 of live axle 72 and the axial region between the internal tooth 66, be provided with crosshead coupling 85.

Crosshead coupling 85 is can make the chimeric position slip of jut and slot part and can transmit the well-known coupling that rotation drives.Leaning on the end face of slide block 87 sides of driving shaft part 72A, as jut, integrally formed or joint has wheel shaft 72a; On the other hand; Leaning on the end face of slide block 87 1 sides of the 72B of driven shaft portion, as jut, integrally formed or joint has wheel shaft 72b; What wherein above-mentioned driving shaft part 72A was positioned at live axle 72 leans on generator unit 26 and expansion cell 20 1 sides, and what the above-mentioned driven shaft 72B of portion was positioned at live axle 72 leans on pump unit 16 1 sides.

Between each

wheel shaft

72a, 72b, dispose slide block 87.The cylindrical main part 91 of slide block 87 with each

wheel shaft

72a, 72b opposing end faces on, respectively along being concaved with slot part (fastening portion) 87a, 87b with the direction of the radially quadrature of live axle 72 each other.Employed torque sensor is connected with wheel shaft 72a when estimating the work of expansion cell 20.

This crosshead coupling 85 is through so that

slot part

87a, 87b dispose slide block 87 with each wheel shaft 72a, the chimeric mode of 72b respectively; Allow live axle 72 displacement diametrically between driving shaft part 72A and the 72B of driven shaft portion; On the other hand; Angle of swing error can be reduced, and the 72B of driven shaft portion can be the angle of swing of driving shaft part 72A be passed to accurately because of the off-centre between driving shaft part 72A and the 72B of driven shaft portion, the live axle that axle offset caused 72 that the drift angle produces.

The live axle 72 that comprises this crosshead coupling 85 run through cover 64 and the pump unit with housing 62, also run through and be fixed in the

lid member

74,75 of pump unit with the opening end of housing 62.Lid member 74 is made up of with lip part 78 tube portion 76, and lid member 75 is made up of with lip part 79 tube portion 77, and

lip part

78,79 engages with the opening end of pump unit with housing 62.

Mode in the inboard of tube portion 76 with the two ends that are positioned at this one 76 respectively disposes a

radial bearing

79,80, disposes radial bearing 89 in the inboard of tube portion 77, and

tube portion

76,77 is supported to live axle 72 can rotate through these

radial bearings

79,80,89.In addition, dispose for example shaft sealing member 81 such as lip packing in the inboard of tube portion 76, shaft sealing member 81 is with separating airtightly in the tube portion 76.

End binding at the live axle of giving prominence to from tube portion 76 72 has the magnetic clutch as power transfer unit 30.

Particularly, power transfer unit 30 has the rotor 83 across radial bearing 82 configuration in the outside of tube portion 76, is fixed with belt wheel 84 at the outer circumferential face of rotor 83.Between the belt wheel of belt wheel 84 and motor 10, set up the belt 86 shown in the dot and dash line, thereby for example can receive power supply from motor 10 so that belt wheel 84 and rotor 83 rotations.In addition, dispose solenoid 97 in the inboard of rotor 83, solenoid 97 produces magnetic field because of the power supply from ECU31.

Near the end face of rotor 83, dispose the armature (armature) 88 of ring-type, armature 88 links through resilient members such as leaf spring 90 and axle sleeve 92.Axle sleeve 92 combines with an end spline of live axle 72, and therefore, armature 88 can rotate with live axle 72 one.In addition, utilize the magnetic field of solenoid 97, armature 88 can overcome the active force of resilient member 90 and can be adsorbed in the end face of rotor 83, by this, can be between rotor 83 and armature 88 transferring power.

The housing cylindraceous (generator unit is used housing) 93 of generator unit 26 is sandwiched in partition 34 and pump unit with between the housing 62; Expansion cell links with housing 62 and lid member 74 with housing 93, pump unit with housing 32, partition 34, generator unit each other, thereby is configured for a housing of fluid machinery 14.

The other end of live axle 72 arrives the through hole of partition 34, and the other end of live axle 72 is supported to and can rotates freely by partition 34 through needle bearing 94.In addition, be fixed with the overrunning clutch 95 as linking member in the inboard of the other end of live axle 72, the axial region 56 of the other end of live axle 72 and cyclotron mechanism 21 links through overrunning clutch 95.

When axial region 56 and live axle 72 rotate in the same direction, under the low situation of the rotating speed of the rotating ratio live axle 72 of axial region 56, the transmission of power that overrunning clutch 95 cuts off between axial regions 56 and the live axle 72.On the other hand, when the rotating speed of axial region 56 is tending towards rotating speed than live axle 72 when high, overrunning clutch 95 allows the transmission of power between axial regions 56 and the live axle 72, so that axial region 56 rotates with live axle 72 one.

On the part of the live axle 72 that generator unit extends in housing 93, be fixed with rotor (the 4th solid of rotation) 96, rotor 96 for example is made up of permanent magnet.Therefore, rotor 96 is disposed on the same axle with axial region 56 and internal tooth 66.

Be fixed with stator with the inner peripheral surface of housing 93 with the mode that surrounds rotor 96 at generator unit, stator has yoke portion 98 and the for example three groups of coils 100 that are wound in yoke portion 98.Coil 100 distributions become the rotation along with rotor 96 to produce threephase AC, and the Ac that is produced is supplied to outside load 28 via not shown lighting outlet.

Because generator unit 26 does not have the function as motor, therefore, the number of turns of the shape of yoke portion 98, coil 100 etc. constitutes generating efficiency is uprised.

Below, being the center with the action in fluid machinery 14 and Lan Ken loop 12 describes the method for using of above-mentioned vehicle used heat utilized device 1.

＜start＞

For Lan Ken loop 12 is started, when ECU31 started working power transfer unit 30, the power of motor 10 was imported into live axle 72.Along with the rotation of live axle 72,66 rotations of the internal tooth of pump unit 16, pump unit 16 sucks working fluid at upstream side, the working fluid pressure after the suction is risen, and discharge this working fluid in the downstream side.

By this, working fluid circulates in circulation road 13, and working fluid is by heater 18 heating and expansion in expansion cell 20.

After Lan Ken loop 12 just started, the pressure of the working fluid in the circulation road 13 was lower, and therefore, the rotating speed of movable orbiting scroll 40, in other words the rotating speed of the rotating ratio live axle 72 of the axial region 56 of cyclotron mechanism 21 is low.Therefore, the transmission of power between overrunning clutch 95 cut-out axial regions 56 and the live axle 72.

＜independently turn round and generate electricity＞

After Lan Ken loop 12 started, when the pressure of the working fluid in the circulation road 13 fully rose, it is higher than the rotating speed of live axle 72 that the rotating speed of the axial region 56 of cyclotron mechanism 21 is tending towards.When the rotating speed of the rotating ratio live axle 72 of the axial region 56 of the cyclotron mechanism that is in free state 21 was high, overrunning clutch 95 became lock state, axial region 56 and the rotation of live axle 72 one.

In addition, when the torque that is passed to live axle 72 from axial region 56 becomes when enough making pump unit 16 work big or small, ECU31 quits work power transfer unit 30, thereby cuts off the power supply from motor 10.By this, fluid machinery 14 gets into and utilizes the torque that produces in the expansion cell 20 to make the autonomous running of pump unit 16 work.

At this moment, along with the rotation of live axle 72, rotor 96 rotations of generator unit 26, generator unit 26 produces Ac.Ac is supplied to load 28, and is moderately stored or consume by load 28.Load 28 also can comprise and converts Ac to galvanic rectifier.

＜regeneration brake＞

After fluid machinery 14 gets into autonomous running, the load reduction of motor 10, but when car brakeing or when slowing down, the magnetic clutch of starting working connects even ECU31 also can make power transfer unit 30.By this, the function that fluid machinery 14 is brought into play as regeneration brake, thus not only motor 10 is applied the complementary load that is used to slow down, also make generator unit 26 generatings, convert electric energy into kinetic energy with vehicle.

＜other＞

In addition, also can not make fluid machinery 14 get into autonomous running and the torque of fluid machinery 14 is supplied to motor 10.That is, also can the part that surpass in the torque that produce in the expansion cell 20 by the torque of pump unit 16 and generator unit 26 consumption be outputed to motor 10 via power transfer unit 30.

As stated, in the fluid machinery 14 of first mode of execution, live axle 72 links through axial region 56 and movable orbiting scroll 40, and links with the internal tooth 66 of pump unit 16, on the movable orbiting scroll 40 of live axle 72 and the axial region between the internal tooth 66, is provided with crosshead coupling 85.By this; When making fluid machinery 14; Make expansion cell 20 separate independence at crosshead coupling 85 places, individually carrying out the job evaluation of expansion cell 20, thereby can estimate the work of expansion cell 20 suitably with pump unit 16; Therefore, the performance that can guarantee fluid machinery 14 also can be enhanced productivity.

Particularly; When the load torque of live axle 72 is measured the work of estimating cyclotron mechanism 21; The internal tooth 66 that can prevent pump unit 16 rotates along with the rotation of live axle 72 and the rotation of this internal tooth 66 becomes friction and the mensuration result of load torque is produced error; Therefore, can estimate expansion cell 20 suitably.

In addition; In pump unit 16, produce under the situation of unfavorable condition, only pump unit 16 is separated at crosshead coupling 85 places, just can be to its place under repair, replacing; Can avoid to repairing, change pump unit 16, thereby can improve the maintenance of fluid machinery 14 fluid machinery 14 whole decomposition.

In addition; Because crosshead coupling 85 is better simply structures, therefore, in the job evaluation of expansion cell 20; Can more easily carry out the centering operation when torque sensor and wheel shaft 72a linked together, this point helps further to improve the efficient of producing fluid machinery.

In addition; The displacement that crosshead coupling 85 also allows the footpath of axle to make progress on the other hand, can reduce the angle of swing error that produces because of axle offset (eccentric, drift angle); Thereby can transmit angle of swing accurately; Owing to allow with each

unit

16,20 axle offset when integrated, therefore, can guarantee the performance of fluid machinery 14.

Fig. 3 representes the fluid machinery 102 of second mode of execution.Explain for also omitting with the fluid machinery 14 identical identical symbols of structure mark of first mode of execution, or ellipsis.

Fluid machinery 102 does not comprise power transmitting deice 30, but in end binding driving shaft part 72B and the opposite side of crosshead coupling 85 sides internal tooth not shown among Fig. 3 of pump unit 16 66 is arranged.

In addition; Fluid machinery 102 does not comprise that the pump unit is with housing 62; Pump unit 16 is tightened onto the opening end of generator unit with housing 93 across one group of lid 64 by two through bolts 104, and each through bolt 104 is tightened onto from the outside of fluid machinery 102 and covers 64 the position that is the diagonal angle.

On the other hand, lid 64 is screwed by two binder bolts 106 each other, and each binder bolt 106 is tightened onto the diagonal position different with the diagonal position of each through bolt 104 from the outside of fluid machinery 102.That is, expansion cell is linked with housing 93, lid 64 with housing 32, partition 34, generator unit each other, thereby be configured for a housing of fluid machinery 102.

In addition, in fluid machinery 102, crosshead coupling 85 is disposed on the live axle 72 position of more leaning on pump unit 16 sides than radial bearing 89.

In fluid machinery 102, can constitute the housing of the fluid machinery 102 under the situation that does not comprise power transmitting deice 30 simply.

In addition, carry out the fixing of pump unit 16, and carry out screwing of through bolt 104, therefore, can further improve the efficient of producing fluid machinery 102 from the direction identical with screwing of binder bolt 106 through the through bolt 104 of screwing from the outside of fluid machinery 102.

Fig. 4 representes the fluid machinery 108 of the 3rd mode of execution.For the identical symbols of the structures mark identical and omit explanation with the fluid machinery of the fluid machinery 14 of first mode of execution and second mode of execution 102, or ellipsis.

Fluid machinery 108 does not comprise generator unit 26, and therefore, the pump unit is fixed in expansion cell with housing 32 with housing 62 through partition 34.

In addition; Fluid machinery 108 does not comprise and covers member 74; For it pump unit is extended to housing 62 and cover the position that member 74 should exist; That is, expansion cell is configured for a housing of fluid machinery 108 with 62 mutual bindings of housing, and makes crosshead coupling 85 be positioned at the pump unit with housing 62 with housing 32, partition 34, pump unit.

In addition, pump unit 16 is tightened onto the pump unit with housing 62 across lid member 75 by a plurality of through bolts 109, and each through bolt 109 is screwed with the inboard of housing 62 from the pump unit.

In this fluid machinery 108, can constitute the housing of the fluid machinery 108 under the situation that does not comprise generator unit 26 simply, thereby can further improve the efficient of producing fluid machinery 108.

In addition; Pump unit 16 is that the inboard of fluid machinery 108 is tightened onto the pump unit with housing 62 from the pump unit with the inboard of housing 62; Compare with the situation of first mode of execution, the hermetic unit of of the housing of fluid machinery 108 has reduced by a place, therefore; The danger of working fluid can be reduced, thereby the reliability of fluid machinery 108 can be further improved towards the housing external leakage.

Fig. 5 representes the fluid machinery 110 of the 4th mode of execution.Explain for also omitting with the fluid machinery 108 identical identical symbols of structure mark of the 3rd mode of execution, or ellipsis.

In fluid machinery 110, in a side opposite with crank pin 52 from live axle 72 and disc 54 axial region 56 that one is outstanding coaxially, be embedded with crosshead coupling 112.

Formation portion as crosshead coupling 112; Like Fig. 6～shown in Figure 8; Integrally formed or engage and wheel shaft 72b is arranged with as jut (Fig. 8) on the end face of the 72B of driven shaft portion that leans on pump unit 16 1 sides of live axle 72, and on axial region 56 and end faces crank pin 52 opposite sides, be concaved with the accepting hole 116 (Fig. 6) of the slide block 114 of this mode of execution.

Outstanding wheel shaft (fastening portion) 114a that is formed with on the end face of accepting hole 116 1 sides that leans at the cylindrical main part 111 of slide block 114; On the other hand; At the end face of the roller axle 72b of main part 111 side, along live axle 72 radially with the direction of wheel shaft 114a quadrature on be concaved with slot part (fastening portion) 114b (Fig. 7).

Through on the 116a of the bottom of accepting hole 116, being formed with slot part 116b; With wheel shaft 114a and this slot part 116b is chimeric and with wheel shaft 72b and the chimeric slide block 114 that disposes of slot part 114b; It is live axle 72 displacement diametrically between driving shaft part 72A and the 72B of driven shaft portion that crosshead coupling 112 allows axial region 56; On the other hand, the angle of swing error of live axle 72 can be reduced, thereby the 72B of driven shaft portion can be the angle of swing of driving shaft part 72A be passed to accurately.

The hole depth D of accepting hole 116 and slide block 114 except the part of wheel shaft 114a axially on shaft length L roughly the same, by this, slide block 114 not only slot part 114b comprises that also main part 111 is contained in accepting hole 116 interiorly.Under this state, when the 72B of driven shaft portion being assembled into driving shaft part 72A through slide block 114, the wall 116c restriction slide block 114 that utilizes accepting hole 116 moving diametrically.Promptly; The aperture d1 of accepting hole 116 forms to such an extent that the diameter of axle d2 that makes progress than the footpath of slide block 114 is big slightly; When assembling fluid machinery 110; Slide block 114 almost can not move along the radial in accepting hole 116, even if slide block 114 not only slot part 114 main parts 111 also through accepting hole 116 by fastening on axial region 56.

In this fluid machinery 110, can prevent the situation that slide block 114 comes off when through slide block 114 72B of driven shaft portion being installed to driving shaft part 72A, thus operation property variation can prevent to assemble fluid machinery 110 time.Particularly; Can prevent the situation that slide block 114 comes off when carrying out the job evaluation of each element of

fluid

16,20 effectively in the centering operation; Thereby can further easily carry out above-mentioned centering operation, therefore, can further improve the manufacturing efficiency of fluid machinery 110.

In addition; After having assembled fluid machinery 110, can slide block 114 be embedded in axial region 56, therefore; Can the length of the 72B of driven shaft portion and the shorten length of live axle 72 be equivalent to the length of the shaft length L of slide block 112, thereby can realize the further miniaturization of fluid machinery 110.

Fig. 9 shows the stereogram of the accepting hole 120 of the crosshead coupling 118 that constitutes the 5th mode of execution, and Figure 10 and Figure 11 are the plan views of the state of accommodating of the expression wheel shaft 114a slot part 120b that is contained in the bottom 120a that is formed on accepting hole 120.Explain for also omitting with the fluid machinery 110 identical identical symbols of structure mark of the 4th mode of execution, or ellipsis.

As shown in Figure 6, the slot part 116b of the 4th mode of execution has two couples of

side

117a, 117c and 117b, 117d, and adjacent side 117a, 117b and

side

117c, 117d are linked to each other by the corner portion 119 of being processed into R shape face smoothly.

On the other hand, like Fig. 9 and shown in Figure 10, the slot part 120b of this mode of execution is that adjacent side 122a, 122b and side 122c, 122d forms so that the mode with step difference is continuous through corner portion 124.Corner portion 124 is inwards to cave in to be processed to form and be circular-arc in the two ends of a pair of side 122a that extends through the long side direction along slot part 120b that makes among side 122a～122d for example, 122c.

When wheel shaft 114a is contained in slot part 120b, the corner portion 126 of wheel shaft 114a can with 124 non-contacts of corner portion, and in slot part 120b, be formed with and allow wheel shaft 114a to keep out of the way space 128 along what its long side direction moved slightly.In addition, as long as form the above-mentioned space 128 of keeping out of the way, corner portion 124 is not limited to above-mentioned shape.

In this fluid machinery 110; In the corner of slot part 120b portion 124, be formed with and keep out of the way space 128, therefore, shown in the arrow among Figure 11; When fluid machinery 110 is installed; Wheel shaft 114a can be at the long side direction of slot part 120b, be that the footpath of axial region 56 is upwards mobile slightly, can allow the size error because of each element of

fluid

16,20, driving shaft part 72A that assembly error produces and the axle center deviation of the live axle 72 between the 72B of driven shaft portion, therefore; Need not the size error and the assembly error of tight ground managing fluids machinery 110, thereby can further improve the manufacturing efficiency of fluid machinery 110.

Though not shown, the present invention is not limited to above-mentioned first mode of execution to the, five mode of executions, can carry out various distortion.

For example, also can crosshead coupling 85 be set at the axial region of the live axle 72 between expansion cell 20 and the generator unit 26.

In addition; Also can remove partition 34; Expansion cell is directly engaged enlarging expansion cell with the volume in the housing 32 with housing 62 with housing 32 and pump unit, and dispose crosshead coupling 85 in housing 32 at the existing expansion cell of the working fluid of low pressure chamber 44.In this case, need not partition 34 and radial bearing 58, thereby the structure of fluid machinery is become simply, therefore, can further improve the efficient of producing fluid machinery.

In addition, handling as if surface hardening such as crosshead coupling 85 being carried out nitriding treatment, then can improve the durability of crosshead coupling 85, and can improve the reliability of fluid machinery, is comparatively desirable.

In addition; Also can constitute the fluid machinery that compression unit (element of fluid) and expansion cell 20, pump unit 16 are linked; This compression unit is along with the revolution of movable orbiting scroll (solid of rotation, first solid of rotation) the suction working fluid that circles round; And after the working fluid after sucking is compressed, this working fluid is discharged.Especially under the situation that compression unit and expansion cell 20 are linked; Can the cyclotron mechanism of compression unit and expansion cell 20 these two unit be separated at crosshead coupling 85 places individually to carry out job evaluation; Therefore, can further improve the efficient of producing fluid machinery.

In addition; Also can the fuel feeding road that the lubricant oil that supply to be used for that cyclotron mechanism is lubricated flows be run through and be arranged at live axle 72; Especially make under the situation that compression unit and expansion cell 20 link above-mentioned; Lubricant oil is circulated between compression unit and expansion cell 20, thereby can more successfully be lubricated these two cyclotron mechanisms.

In addition, in first mode of execution to the, three mode of executions, pump unit 16 is a trochoid pump, but the model of pump unit is not limited especially.

In addition, the arrangement of each unit such as pump unit 16, generator unit 26 and expansion cell 20 is not specially limited.

In addition, the generator unit 26 that makes also capable of using has motor generator set (generating driver element) as the function of motor to replace generator unit 26.This motor generator set has rotor (the 5th solid of rotation) and has the electricity generate function that produces electric power along with the rotation of rotor; On the other hand, this motor generator set can also be as utilizing external power to make rotor rotation and along with the rotation of rotor is carried out drive electric motor to live axle 72 and worked.

In addition, the sure slide block 114 that the 4th mode of execution is such is embedded in the burying underground in the fluid machinery that structure is applicable to first or second mode of execution beyond the 3rd mode of execution etc. of axial region 56 of live axle 72.

In addition, fluid machinery of the present invention is not limited to the Lan Ken loop 12 of automobile-used used heat utilized device 1, can be applicable to the ownership refrigerant circuit that supplies working fluid cycles.

(symbol description)

14,102,108,110 fluid machineries

16 pump unit (element of fluid)

20 expansion cells (element of fluid)

26 generator units

30 power transfer units

40 movable orbiting scrolls (solid of rotation, first solid of rotation)

66 internal tooths (solid of rotation, second solid of rotation)

72 live axles

85,112 crosshead coupling

96 rotors (the 4th solid of rotation)

56 axial regions

87,114 slide blocks

91,111 main parts

114a wheel shaft (fastening portion)

114b slot part (fastening portion)

116 accepting holes

Claims

1. a fluid machinery is characterized in that, comprising:

A plurality of element of fluids, these element of fluids have solid of rotation, and along with the rotation of said solid of rotation makes the working fluid inflow and outflow; And

Live axle, the said solid of rotation of each of this live axle and said a plurality of element of fluids links,

Axial region between the said solid of rotation of said live axle is provided with the crosshead coupling.

2. fluid machinery as claimed in claim 1 is characterized in that,

Said crosshead coupling comprises slide block, and this slide block is made up of with the main part that is formed with said fastening portion the fastening portion relative with said axial region,

Said slide block is contained in accepting hole, and this accepting hole is formed at said axial region.

3. according to claim 1 or claim 2 fluid machinery is characterized in that,

Said a plurality of element of fluid comprises expansion cell, and this expansion cell has first solid of rotation, along with the rotation reception working fluid of said first solid of rotation, and after the working fluid that receives is expanded, this working fluid is discharged.

4. like each described fluid machinery in the claim 1 to 3, it is characterized in that,

Said a plurality of element of fluid comprises the pump unit, and this pump unit has second solid of rotation, along with the rotation suction working fluid of said second solid of rotation, and after the pressure of the working fluid that makes suction rises, this working fluid is discharged.

5. like each described fluid machinery in the claim 1 to 4, it is characterized in that,

Said a plurality of element of fluid comprises compression unit, and this compression unit has the 3rd solid of rotation, along with the rotation suction working fluid of said the 3rd solid of rotation, and after the working fluid that sucks is compressed, this working fluid is discharged.

6. like each described fluid machinery in the claim 1 to 5, it is characterized in that,

Said fluid machinery comprises generator unit, and this generator unit has the 4th solid of rotation that links with said live axle, and along with the rotation of said the 4th solid of rotation produces electric power.

7. like each described fluid machinery in the claim 1 to 5, it is characterized in that,

Said fluid machinery comprises the generating driver element; This generating driver element has the 5th solid of rotation that links with said live axle; And along with the rotation of said the 5th solid of rotation produces electric power; In addition, also utilize external power to make said the 5th solid of rotation rotation, and along with the rotation of said the 5th solid of rotation drives said live axle.

8. like each described fluid machinery in the claim 1 to 7, it is characterized in that,

Said fluid machinery comprises power transfer unit, and this power transfer unit and said live axle link, and between said live axle and outside transferring power.