CN102852709A - Hydraulic engine and control method thereof - Google Patents
Hydraulic engine and control method thereof Download PDFInfo
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- CN102852709A CN102852709A CN2012103282072A CN201210328207A CN102852709A CN 102852709 A CN102852709 A CN 102852709A CN 2012103282072 A CN2012103282072 A CN 2012103282072A CN 201210328207 A CN201210328207 A CN 201210328207A CN 102852709 A CN102852709 A CN 102852709A
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Abstract
The present invention discloses a hydraulic engine and a control method thereof. The hydraulic engine comprises a cylinder, wherein the cylinder comprises a cylinder sleeve and a cylinder cover, the cylinder cover is provided with a fuel atomization nozzle and an exhaust valve, a piston having a return spring is arranged inside the cylinder sleeve, the upper portion of the piston is a combustion chamber, the lower portion of the piston is a hydraulic pressure chamber, the hydraulic pressure chamber is provided with an oil inlet check valve and an oil outlet check valve, installation directions of the oil inlet check valve and the oil outlet check valve are opposite, and the oil inlet check valve, the oil outlet check valve and a hydraulic motor are connected through a high pressure oil pipe and an oil return pipe to form a closed loop. According to the hydraulic engine and the control method in the present invention, a pair of the check valves are adopted to form an oil loop circulation, such that the hydraulic pressure can be directedly transmitted to the hydraulic motor to externally work, and empty running can be performed at any time so as to effectively improve energy conversion efficiency. In addition, the structure is simple and reliable, and easy to maintain.
Description
Technical field
The present invention relates to a kind of motor and controlling method thereof, relate in particular to a kind of fluid power motor and controlling method thereof.
Background technique
Conventional reciprocating piston quartastroke engine work characteristics is that fuel burns in cylinder combustion, the direct pushing piston acting of the combustion gas that produces.
Beginning, piston moves down, inlet open, exhaust valve closure, the mixed gas of gasoline and air enters cylinder.After the piston arrives extreme lower position, change moving direction and move up, at this moment air inlet and exhaust valve is closed, and gas in the jar is compressed.Compression ends, and electric plug is lighted fuel gas.The combustion gas that fuel combustion produces is expanded in cylinder, downwards pushing piston and doing work.When piston was again up, suction valve cut out, and outlet valve is opened, and the flue gas after the acting is discharged to atmosphere.Repeat above-mentioned compression, burning, expand, the processes such as exhaust, loop cycle, constantly the chemical energy with fuel is converted into heat energy, and then is converted to mechanical energy.
Traditional internal-combustion engine relies on connecting rod that the linear reciprocating motion of piston is become rotatablely moving of bent axle, the transmission angle of linkage mechanism larger (90 °), transmission to mechanism is more favourable, and piston, connecting rod and the bent axle size of transmission angle in movement process changes, when working stroke had just begun, it is the highest that gaseous-pressure reaches, but this moment piston when being positioned at top dead center, transmission angle is zero, and is totally unfavorable to transmission; When piston ran to up and down the stop neutral position, transmission angle also can only reach (45 °), and this moment, piston also reached maximum to the pressure angle to cylinder wall, and the generation lateral force is F
c=Ftan β, the straight line motion of obstruction piston; In addition, in the connecting rod of traditional combustion engine, position when connecting rod and crank conllinear is called the dead point, for traditional combustion engine is run well by the dead point smoothly, prestart must rely on external force to drive and just can bring into operation, even and do not need yet will have an appointment idling about (700 rev/mins) of outputting power after the starting, just can keep normal idle running.
Internal-combustion engine can not change operating condition over to voluntarily from vehicle stop state, must by the external force turning crankshaft, make it starting.Starting process can not have load, and the idling mode when unloaded needs continuous consume fuel.Particularly the internal-combustion engine system of conventional truck be design take car load power character, acceleration and grade ability for mainly resolving contradiction as target, therefore in the sense: one side is just can not make engine operation under the state of saving most the energy when solving these contradictions in designed engines; The working procedure of traditional combustion engine itself and for realizing the structure of working procedure causes mean mechanical loss pressure large on the other hand.
Mean mechanical loss pressure: the merit that circulation of motor unit's displacement is lost.Can be used for weighing the size of mechanical loss.Be the composition of mechanical loss: the 1) frictional loss of piston and rings: because of transmission and the decomposition of connecting rod power, it is F that cylinder wall is produced lateral force
c=Ftan β accounts for the major component of frictional loss, is about: 45-65%; 2) frictional loss of bearing and valve mechanism: comprise the frictional loss of all main bearings, connecting rod bearing and camshaft bearing etc.Bearing diameter is larger, and rotating speed is higher, loses larger.15-30%; 3) power consumpiton of driving subsidiary body: refer to by guaranteeing the requisite component assembly of engine operation, such as coolant pump assembly (then being cooling fan in the air cooling engine), oil pump, Injection Pump, speed regulator etc.; Account for 10-20%.
China's publication number is CN 1952363A, denomination of invention is the disclosed technological schemes of the application documents of double-piston hydraulic engine, although also adopted hydraulicdriven principle, but do not break away from connecting rod yet, mechanism is still complicated, although small piston has been eliminated cross component force, on large piston, born larger cross component force as cost.In addition, according to pascal's principle, large piston in the oil cylinder when obtaining larger pressure be the stroke of sacrificing large piston be cost, such kind of drive can not reduce energy loss, can not produce without foundation new pressure energy, the increase power of more impossible realization small displacement high-power or the function of efficient yet.
China's publication number is CN 201723359U, denomination of invention is: in the disclosed technological scheme of the patent application of fluid power motor mechanism, its conversion process of energy is: the chemical energy of fuel is converted to mechanical energy through diesel engine, be converted to again the pressure energy of fluid through oil hydraulic pump, be converted to mechanical energy through fluid power motor again.China's publication number is CN 201554597U, denomination of invention is: disclosed technological scheme in a kind of application documents of fluid power motor, it has adopted four motors and four oil pumps, conversion process of energy is that electric energy is converted to mechanical energy by motor, by oil pump mechanical energy is converted to again the pressure energy of liquid, then is converted to machinery through hydraulic piston and crankshaft-link rod.Above-mentioned two kinds of technological schemes are all passed through the Various Complex conversion, will inevitably cause the reduction of efficient.
Although China's publication number is the subproblem that the disclosed fluid power motor of application documents of CN101495730 has also solved traditional combustion engine, but it still inherits rigidly connected connecting rod, this requires the error of concentricity, ovality and the tapering of opposed cylinder must be very little, so that the manufacturing of engine main body parts and process all difficults; Opposed two hydraulic chambers are because existing very large pressure difference during engine operation, and the rigidity connecting rod must be between two hydraulic chambers fast moving so that the slipper seal of hydraulic chamber and connecting rod requires is very high; It has inherited the independently intake valve of traditional combustion engine in addition, and this is so that motor mechanisms is complicated, and the mechanism of valve motion and controlling method are very numerous and diverse, and the convenience of reliability and maintenance all reduces greatly.
Summary of the invention
Technical problem to be solved by this invention provides a kind of fluid power motor and controlling method thereof, can the Effective Raise energy conversion efficiency, and fuel saving consumption, environmental contamination reduction, and simple and reliable for structure, be easy to safeguard.
The present invention solves the problems of the technologies described above the technological scheme that adopts to provide a kind of fluid power motor, comprise cylinder, described cylinder comprises cylinder sleeve and cylinder cap, fuel atomization nozzle and exhaust valve are installed on the described cylinder cap, wherein, be provided with the piston with the return spring in the described cylinder sleeve, described piston top is the firing chamber, the bottom is hydraulic chamber, and described hydraulic chamber is provided with an in line check valve and an oil outlet one-way valve; Opposite also linking to each other with oil hydraulic motor by high-pressure oil pipe, return tube of the installation direction of described in line check valve and oil outlet one-way valve forms the closed-loop path.
Further, described cylinder comprises the first cylinder and the second cylinder, and the in line check valve on described two cylinders links to each other with the oil outlet one-way valve bridge-type and forms the closed-loop path.
Further, the high pressure oil outlet of described in line check valve and oil outlet one-way valve links to each other with the high pressure entry of three position four-way directional control valve and is communicated with the accumulation of energy vibration damper, two exit from dos of described three position four-way directional control valve are communicated with respectively high voltage interface and the low-voltage interface outputting power of oil hydraulic motor, and the low pressure oil outlet of described three position four-way directional control valve links to each other with the low pressure filler opening of in line check valve.
Further, an end of described exhaust valve and rocking arm links to each other, and the other end of described rocking arm connects fork, and the up and down two ends of described fork consist of two revolute pairs with rocking arm, exhaust valve respectively, and described rocking arm is fixed on the pitman arm shaft.
Further, be provided with fuel joint, oxygen connection and igniting electromagnetic coil on the described fuel gas nozzle, be provided with the fuel needle in the pipeline at described fuel joint place, be provided with the oxygen spool in the pipeline at described oxygen connection place, the igniting armature winding of described igniting electromagnetic coil links to each other with fuel needle, oxygen spool, and the igniting secondary windings of described igniting electromagnetic coil links to each other with spark plug.
Further, also be provided with air condition compressor and gas compressor on the described high-pressure oil pipe, described gas compressor links to each other with the fuel atomization nozzle by the nitrogen oxygen separator.
The present invention is for solving the problems of the technologies described above the controlling method that a kind of above-mentioned fluid power motor also is provided, described cylinder comprises the first cylinder and the second cylinder, in line check valve on described two cylinders links to each other with the oil outlet one-way valve bridge-type and forms the closed-loop path, wherein, described controlling method comprises the steps: a) when the first cylinder operation, close the first inblock cylinder valve and oiling valve one-way valve, open the first cylinder oil outlet one-way valve, close the oil outlet one-way valve of the second cylinder, open exhaust valve and the in line check valve of the second cylinder; In the first cylinder, spray into an amount of fuel and oxygen and igniting, the piston that combustion gas promotes the first cylinder moves down, the high pressure oil of the first cylinder hydraulic chamber is sent into oil hydraulic motor through high-pressure oil pipe, and the low-pressure hydraulic oil after outwards doing work enters the in line check valve of the second cylinder through return tube, and the piston of the second cylinder moves up under the acting in conjunction of return spring and low pressure oil; B) when the first cylinder piston moves down near lower dead center or gaseous-pressure near atmospheric pressure, open the first inblock cylinder valve and oiling valve one-way valve, progressively close the first cylinder oil outlet one-way valve; The second cylinder piston is closed exhaust valve and the in line check valve of the second cylinder near top dead center at this moment, opens the oil outlet one-way valve of the second cylinder, sprays into an amount of fuel and oxygen and igniting in the second cylinder, and the second cylinder is started working; C) repeating step a) and b), described the first cylinder and the successively alternation of the second cylinder; D) when fluid power motor needs break-off, close the fuel atomization nozzle, oil stream forms circulation between two pairs of one-way valves that oil hydraulic motor, three position four-way directional control valve and bridge-type link to each other.
The present invention contrasts prior art following beneficial effect: fluid power motor provided by the invention and controlling method thereof, adopting a pair of one-way valve formation oil circulation to make the hydraulic energy orientation be delivered to oil hydraulic motor externally does work, but and at any time no-load running, brace and connecting rod framework, camshaft and the timing drive mechanism of conventional, four-stroke motor have been cancelled, thereby the Effective Raise energy conversion efficiency, fuel saving consumption, environmental contamination reduction, and simple and reliable for structure, be easy to safeguard.
Description of drawings
Fig. 1 is single-cylinder hydraulic engine structure schematic diagram of the present invention;
Fig. 2 is double-cylinder hydraulic engine structure schematic diagram of the present invention;
Fig. 3 is intake and exhaust mechanism and the nitrogen oxygen segregation apparatus structural representation of fluid power motor of the present invention;
Fig. 4 is the mechanical exhaust component structural representation of fluid power motor of the present invention;
Fig. 5 is the air compressor structure schematic diagram of fluid power motor of the present invention;
Fig. 6 is the structure of hydraulic air condition compressor schematic diagram of fluid power motor of the present invention;
Fig. 7 is the air inlet component structural representation of fluid power motor of the present invention;
Fig. 8 is the fuel atomization nozzle arrangements schematic diagram in the air inlet component of fluid power motor of the present invention.
Among the figure:
1 cylinder, 2 cylinder sleeves, 3 pistons
4 return springs, 5 exhaust valves, 6 accumulation of energy vibration dampers
7 three position four-way directional control valves, 8 oil hydraulic motors, 9 forks
10 rocking arms, 11 pitman arm shafts, 12 gas compressor pistons
13 gas compressor exhaust check valves, 14 compressor air inlet machine one-way valves, 15 gas compressor piston return springs
16 two-position three way magnetic valves, 17 compressor pistons, 18 compressor air-discharging one-way valves
19 compressor breather check valves, 20 compressor pressure sensors, 21 fuel tanks
23 air inlets of 22 petrolifts and fuel solenoid valve 24 fuel atomization nozzles
25 valve position sensors, 26 gas holder, 27 return tubes
28 igniting electromagnetic coils, 29 fuel joints, 30 fuel needles
31 oxygen connections, 32 oxygen spools, 33 igniting armature windings
34 igniting secondary windings, 35 high-pressure oil pipes, 36 nitrogen oxygen separators
37 high pressure oxygen pipelines, 38 oxygen filling interface, 39 compressed air lines
41,43 in line check valves 42,44 oil outlet one-way valves, 45 air condition compressor
46 exhaust gears, 47 gas compressors, 48 admission gears
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is single-cylinder hydraulic engine structure schematic diagram of the present invention.
Please refer to Fig. 1, fluid power motor provided by the invention comprises cylinder 1, described cylinder 1 comprises cylinder sleeve 2 and cylinder cap, fuel atomization nozzle 24 and exhaust valve 5 are installed on the described cylinder cap, wherein, be provided with the piston 3 with return spring 4 in the described cylinder sleeve 2, described piston 3 tops are the firing chamber, the bottom is hydraulic chamber, and described hydraulic chamber is provided with an in line check valve 42 and an oil outlet one-way valve 41; Opposite also linking to each other with oil hydraulic motor 8 by high-pressure oil pipe 35, return tube 27 of the installation direction of described in line check valve 42 and oil outlet one-way valve 41 forms the closed-loop path.
Fluid power motor provided by the invention, the number of cylinder 1 are preferably two, also can adopt the above multi-cylinder structure of 3 cylinders.See also Fig. 2, the number of cylinder 1 is two, comprise the first cylinder and the second cylinder, the hydraulic chamber of the first cylinder is provided with an in line check valve 42 and an oil outlet one-way valve 41, the hydraulic chamber of the second cylinder is provided with an in line check valve 44 and an oil outlet one-way valve 43, this system comprises that four one-way valves are combined into the bridge-type valve sets, piston 3 and piston return spring 4 are installed in the cylinder sleeve 2, the piston top of cylinder sleeve 2 the insides is the firing chamber, the piston bottom is hydraulic chamber, in hydraulic chamber and the bridge-type valve sets in twos the intermediate portion of the one-way valve of series connection be connected, when linking to each other with the high pressure entry of three position four-way directional control valve 7, the one-way valve oil outlet of bridge-type valve sets also is communicated with accumulation of energy vibration damper 6, two exit from dos of three position four-way directional control valve are communicated with respectively the high voltage interface of oil hydraulic motor 8 and the purpose that low-voltage interface reaches outputting power, and the low pressure oil outlet of three position four-way directional control valve 7 links to each other with the low-pressure inlet of bridge-type valve sets one-way valve.
Fluid power motor provided by the invention, cancelled the brace and connecting rod framework of conventional, four-stroke motor: comprise bent axle, connecting rod, crankshaft bearing, connecting rod bearing, and keep connecting rod and move the annexes such as necessary flywheel, starter motor and oil pump, camshaft, camshaft bearing and the timing drive mechanism of traditional combustion engine have been saved in addition, or even intake valve and spark coil etc. also have been integrated into the oil spout blast nozzle together, simple and reliable for structure, be easy to safeguard.To the double-cylinder hydraulic motor, working procedure is as follows: fuel burns the high-temperature high-pressure fuel gas that produces and directly promotes the hydraulic oil acting through piston in cylinder combustion.Beginning, piston 3 moves up under the acting in conjunction of piston return spring 4 and low pressure oil, and exhaust valve 5 cuts out, piston 3 reaches top dead center, oil outlet one-way valve 42 is closed, and air inlet electromagnetic valve and fuel solenoid valve are opened, and the pure oxygen mixed gas of fuel and corresponding proportion enters cylinder sleeve 2; Air inlet electromagnetic valve and fuel solenoid valve are closed, plug ignition, piston 3 changes moving direction and moves down, at this moment the high pressure liquid force feed is pushed in line check valve 41 open and is entered three position four-way directional control valve 7, a part of high pressure oil enters accumulation of energy vibration damper 6 simultaneously, three position four-way directional control valve 7 changes the sense of rotation of oil hydraulic motor 8 by changing fuel-displaced direction, again pass through the filler opening that three position four-way directional control valve 7 and pipeline flow in line check valve 43 behind the low pressure oil efflux pressure motor 8, through the upwards also exhaust of hydraulic chamber pushing piston 3 of another cylinder.In the folding process of acting piston, oil pressure reduces along with the continuous reduction of gaseous-pressure, release oil pressure and piston 3 do work jointly when oil pressure is lower than accumulation of energy vibration damper 6 interior oil pressure, and piston 3 continues descending, and the inertia of combustion gas overbottom pressure and liquid stream continues to oil hydraulic motor 8 oil extractions.When gaseous-pressure drops near atmospheric pressure, oil outlet one-way valve 44 is closed, outlet valve is opened, and piston 3 moves up under the acting in conjunction of piston return spring 4 and low pressure oil, the low pressure waste heat flue gas after the acting behind over-heat-exchanger heat absorption recovered energy discharged to atmosphere.Repeat above-mentioned air inlet, burning expansion, the processes such as exhaust, loop cycle, constantly the chemical energy with fuel is converted into heat energy, transmits the pressure energies that become liquid through piston 3 equivalence, by oil hydraulic motor and then be converted to mechanical energy.
On the high-pressure oil pipe 35 of fluid power motor of the present invention except exhaust gear 46 is set, also be provided with air condition compressor 45 and gas compressor 47, high-pressure oil pipe 35 links to each other with fuel atomization nozzle 24 in the admission gear 48 by nitrogen oxygen separator 36, the specific works process of nitrogen oxygen segregation apparatus is as follows: the pulse hydraulic oil in the high-pressure oil pipe 35 of fluid power motor promotes gas compressor piston 17, entering nitrogen oxygen separator 36 by compressed air line 39 after the extraneous fresh air pressurization, nitrogen oxygen separator 36 comprises molecular sieve-4 A and molecular sieve B, two molecular sieve parallel connections, a job, simultaneously another processing of can regenerating, alternation and regeneration move continuously with assurance equipment mutually.High pressure oxygen after the separation enters gas holder 26 through high pressure oxygen pipeline 37.Oxygen filling interface 38 can be used for from outside filling oxygen, separate the power consumption of lose because of nitrogen oxygen to reduce fluid power motor of the present invention, and the outfit of nitrogen oxygen segregation apparatus can make the fluid power motor of the present invention can continuous operation under the condition that does not possess the outside oxygen of annotating.
The below launches to describe to critical pieces such as exhaust gear 46, gas compressor 47, air condition compressor 45, admission gear 48 and fuel atomization nozzles 24 respectively one by one.
Fig. 4 is the mechanical exhaust component structural representation of fluid power motor of the present invention.
Please refer to Fig. 4, the mechanical vent systems of fluid power motor provided by the invention has configured exhaust valve 5, fork 9, rocking arm 10, pitman arm shaft 11.Rocking arm 10 is fixed on the pitman arm shaft 11 and also can rotates in this machinery vent systems; the two ends of rocking arm 10 connect respectively fork 9 and exhaust valve 5 successively; fork consists of two revolute pairs respectively at rocking arm 10 and exhaust valve 5 in two ends about in the of 9, makes exhaust valve 5 be unlikely to be stuck in the process of closing and opening.Except above-mentioned mechanical type valve actuation form, also can adopt hydraulic driving, Electromagnetic Drive, air pressure or vacuum to drive, give unnecessary details no longer one by one at this.
The working procedure of fluid power motor machinery exhaust gear is as follows: piston 3 moves up under the acting in conjunction of piston return spring 4 and low pressure oil during beginning, left side exhaust valve 5 cuts out, and the right side valve is opened under the effect of rocking arm synchronously, piston 3 reaches top dead center, oil outlet one-way valve 41 is closed, air inlet electromagnetic valve and fuel solenoid valve are opened, and the pure oxygen mixed gas of fuel and corresponding proportion enters cylinder sleeve 2; Air inlet electromagnetic valve and fuel solenoid valve are closed, plug ignition, piston 3 changes moving direction, fuel left side valve 5 the high-temperature high-pressure fuel gas that the left hand cylinder internal combustion produces directly promotes the hydraulic oil acting through piston when also is in more closely closed condition under the effect at high-pressure gas, and the right side exhaust valve is then opened and reached maximum rating.In the folding process of acting piston, oil pressure constantly reduces and reduces along with gaseous-pressure, and when gaseous-pressure dropped near atmospheric pressure, oil outlet one-way valve was closed, and exhaust valve 5 is opened, and the process in above-mentioned left side is repeated in the firing chamber, right side, and so forth circulation.
Fig. 5 is the air compressor structure schematic diagram of fluid power motor of the present invention.
Please refer to Fig. 5, the gas compressor of fluid power motor provided by the invention has configured gas compressor piston 12, gas compressor exhaust check valve 13, compressor air inlet machine one-way valve 14, gas compressor piston return spring 15.Compressor air inlet machine one-way valve 14 connects air filter, and gas compressor exhaust check valve 13 connects air inlet electromagnetic valve 23 through gas holder 26.
The work characteristics of fluid power motor gas compressor is, when the high-pressure oil pipe internal pressure is low-pressure state, gas compressor piston 12 moves downward under the effect of gas compressor piston return spring 15, meanwhile compressor air inlet machine one-way valve 14 is opened, gas compressor exhaust check valve 13 is closed, and fresh air flows to compressor housing; When the high-pressure oil pipe internal pressure was high pressure conditions, gas compressor piston 12 moved upward under the promotion of high pressure oil, and compressor air inlet machine one-way valve 14 is closed at this moment, and the gas compressor exhaust check valve is opened.Pressurized gas flow to air inlet electromagnetic valve 23 from compressor housing through gas holder 26.
Fig. 6 is the structure of hydraulic air condition compressor schematic diagram of fluid power motor of the present invention.
Please refer to Fig. 6, the invention provides the supporting hydraulic air condition compressor two-position three way magnetic valve 16 of fluid power motor, hydraulic air condition compressor piston 17, hydraulic air condition compressor exhaust check valve 18, hydraulic air condition compressor breather check valve 19, hydraulic air condition compressor pressure transducer 20.
The working procedure of hydraulic air condition compressor is, when refrigeration system needs compressor start, two-position three way magnetic valve 16 energisings are opened, the bottom pushing piston that the high-pressure oil pipe 35 that high pressure oil links to each other from fluid power motor one-way valve 1 outlet of the present invention enters hydraulic air condition compressor piston 17 moves up, hydraulic air condition compressor breather check valve 19 is closed, compressed refrigerant promotes hydraulic air condition compressor exhaust check valve 18 and opens and extrude the high pressure refrigerant, when hydraulic air condition compressor piston 17 moves to the top, when the pressure ratio pressure duct pressure of hydraulic air condition compressor pressure transducer 20 is high, high pressure excuse P is closed in two-position three way magnetic valve 16 outages, connect simultaneously B, piston is under the effect of low pressure refrigerant, hydraulic air condition compressor breather check valve 19 is opened, top and pushing piston that low pressure refrigerant enters hydraulic air condition compressor piston 17 move down, when hydraulic air condition compressor piston 17 moves to the bottom, when the pressure of hydraulic air condition compressor pressure transducer 20 and low pressure line equate, two-position three way magnetic valve 16 is again switched on and is opened, so constantly circulation.Until refrigeration system is not when needing compressor operating, two-position three way magnetic valve 16 long outages and quitting work.Because the hydraulic air condition compressor among the present invention has just substituted requisite bent axle and the crankshaft belt pulley that is attached thereto in the conventional engines air-conditioning system, air-conditioning belt, belt tension pulley for air-conditioner, air condition compressor clutch, compressor clutch bearing, clutch pull in winding and the much complicated members such as traditional air condition compressor with few component
Fig. 7 is the air inlet component structural representation of fluid power motor of the present invention.
Please refer to Fig. 7, fluid power motor gas handling system provided by the invention comprises fuel tank 21, petrolift 22, air inlet and fuel solenoid valve 23, fuel atomization nozzle 24, valve position sensor 25, gas holder 26.
The working procedure of fluid power motor gas handling system is as follows: when piston 3 up moves to when contacting with the exhaust valve 5 of opening, when the exhaust valve 5 of this cylinder pushes to cut out the valve of another cylinder is opened, the Hall transducer of another cylinder transfers off state to from on-state; Piston 3 continues up, until exhaust valve 5 cuts out fully, the exhaust valve of another cylinder is opened fully, the temporary transient stop motion of piston, the Hall transducer of this cylinder transfer on-state to from off state, air inlet and fuel solenoid valve 23 energisings, but fuel atomization nozzle 24 sprays the mixed gas of fuel and air formation perfect combustion in proportion, plug ignition when air inlet and fuel solenoid valve 23 outages stop to spray, mixed gas detonation pushing piston externally does work by hydraulic pressure downwards, this moment, the piston of another cylinder was opened fully because of exhaust valve, and piston moves under the promotion of return spring and return pressure, repeats above-mentioned process reciprocation cycle.
Fig. 8 is the fuel atomization nozzle arrangements schematic diagram in the air inlet component of fluid power motor of the present invention.
Please refer to Fig. 8, be integrated with fuel joint 29 on the fuel atomization nozzle 24 of fluid power motor provided by the invention, oxygen connection 31 and igniting electromagnetic coil 28, be provided with fuel needle 30 in the pipeline at fuel joint 29 places, be provided with oxygen spool 32 in the pipeline at oxygen connection 31 places, the igniting armature winding 33 of described igniting electromagnetic coil 28 and fuel needle 30, oxygen spool 32 links to each other and the open and close valve signal is provided, the igniting secondary windings 34 of described igniting electromagnetic coil 28 links to each other with spark plug and the pulsed high-voltage fire signal is provided, and fuel joint 29 links to each other with return tube 27.The working procedure of fluid power motor fuel atomization nozzle is as follows: the Hall transducer of this cylinder transfer on-state to from off state, electromagnetic fuel injection igniting armature winding 33 energisings of electromagnetic fuel injection igniting electromagnetic coil 28, fuel needle 30 and oxygen spool 32 overcomes return spring under the effect of electromagnetic force and hydrodynamic pressure is opened, fuel and oxygen spray into the firing chamber simultaneously in proportion, until electromagnetic fuel injection igniting armature winding 33 cuts off the power supply under the control of control unit, fuel needle 30 and oxygen spool 32 returns are closed, meanwhile electromagnetic fuel injection igniting secondary windings 34 produces pulsed high-voltage to plug ignition, and mixed gas detonation pushing piston externally does work by hydraulic pressure downwards.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (7)
1. fluid power motor, comprise cylinder (1), described cylinder (1) comprises cylinder sleeve (2) and cylinder cap, fuel atomization nozzle (24) and exhaust valve (5) are installed on the described cylinder cap, it is characterized in that, be provided with the piston (3) of band return spring (4) in the described cylinder sleeve (2), described piston (3) top is the firing chamber, the bottom is hydraulic chamber, and described hydraulic chamber is provided with an in line check valve (42,44) and an oil outlet one-way valve (41,43); Opposite also linking to each other with oil hydraulic motor (8) by high-pressure oil pipe (35), return tube (27) of the installation direction of described in line check valve (42,44) and oil outlet one-way valve (41,43) forms the closed-loop path.
2. fluid power motor as claimed in claim 1 is characterized in that, described cylinder (1) comprises the first cylinder and the second cylinder, and the in line check valve (42,44) on described two cylinders links to each other with oil outlet one-way valve (41,43) bridge-type and forms the closed-loop path.
3. fluid power motor as claimed in claim 1, it is characterized in that, the high pressure oil outlet of described in line check valve (42,44) and oil outlet one-way valve (41,43) links to each other with the high pressure entry of three position four-way directional control valve (7) and is communicated with accumulation of energy vibration damper (6), two exit from dos of described three position four-way directional control valve (7) are communicated with respectively high voltage interface and the low-voltage interface outputting power of oil hydraulic motor (8), and the low pressure oil outlet of described three position four-way directional control valve (7) links to each other with in line check valve (42,44) filler opening.
4. fluid power motor as claimed in claim 1, it is characterized in that, described exhaust valve (5) links to each other with an end of rocking arm (10), the other end of described rocking arm (10) connects fork (9), the up and down two ends of described fork (9) consist of two revolute pairs with rocking arm (10), exhaust valve (5) respectively, and described rocking arm (10) is fixed on the pitman arm shaft (11).
5. fluid power motor as claimed in claim 1, it is characterized in that, be provided with fuel joint (29) on the described fuel atomization nozzle (24), oxygen connection (31) and igniting electromagnetic coil (28), be provided with fuel needle (30) in the pipeline at described fuel joint (29) place, be provided with oxygen spool (32) in the pipeline at described oxygen connection (31) place, the igniting armature winding (33) of described igniting electromagnetic coil (28) and fuel needle (30), oxygen spool (32) links to each other, and the igniting secondary windings (34) of described igniting electromagnetic coil (28) links to each other with spark plug.
6. such as each described fluid power motor of claim 1～5, it is characterized in that, also be connected with air condition compressor (45) and gas compressor (47) on the described high-pressure oil pipe (35), described gas compressor (47) links to each other with fuel atomization nozzle (24) by nitrogen oxygen separator (36).
7. the controlling method of a fluid power motor as claimed in claim 2, described controlling method comprises the steps:
A) when the first cylinder operation, close the first inblock cylinder valve (5) and oiling valve one-way valve (42), open the first cylinder oil outlet one-way valve (41), close the oil outlet one-way valve (43) of the second cylinder, open exhaust valve (5) and the in line check valve (44) of the second cylinder; In the first cylinder, spray into an amount of fuel and oxygen and igniting, the piston that combustion gas promotes the first cylinder moves down, the high pressure oil of the first cylinder hydraulic chamber is sent into oil hydraulic motor (8) through high-pressure oil pipe (35), and the low-pressure hydraulic oil after outwards doing work enters the in line check valve (44) of the second cylinder through return tube (27), and the piston of the second cylinder moves up under the acting in conjunction of return spring and low pressure oil;
B) when the first cylinder piston moves down near lower dead center or gaseous-pressure near atmospheric pressure, open the first inblock cylinder valve (5) and oiling valve one-way valve (42), progressively close the first cylinder oil outlet one-way valve (41); The second cylinder piston is closed exhaust valve (5) and the in line check valve (44) of the second cylinder near top dead center at this moment, opens the oil outlet one-way valve (43) of the second cylinder, sprays into an amount of fuel and oxygen and igniting in the second cylinder, and the second cylinder is started working;
C) repeating step a) and b), described the first cylinder and the successively alternation of the second cylinder;
D) when fluid power motor needs break-off, close the fuel atomization nozzle, oil stream forms circulation between two pairs of one-way valves that oil hydraulic motor (8), three position four-way directional control valve (7) and bridge-type link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328207.2A CN102852709B (en) | 2012-09-06 | 2012-09-06 | Hydraulic engine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210328207.2A CN102852709B (en) | 2012-09-06 | 2012-09-06 | Hydraulic engine and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102852709A true CN102852709A (en) | 2013-01-02 |
| CN102852709B CN102852709B (en) | 2014-12-31 |
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| CN201210328207.2A Expired - Fee Related CN102852709B (en) | 2012-09-06 | 2012-09-06 | Hydraulic engine and control method thereof |
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| CN113418706A (en) * | 2021-05-31 | 2021-09-21 | 中国环境科学研究院 | Engine average friction loss pressure obtaining method and computer product |
| CN114837853A (en) * | 2022-05-20 | 2022-08-02 | 西北工业大学 | Multi-time starting ignition method and device for solid-liquid mixed engine |
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