CN102852709B - Hydraulic engine and control method thereof - Google Patents
Hydraulic engine and control method thereof Download PDFInfo
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- CN102852709B CN102852709B CN201210328207.2A CN201210328207A CN102852709B CN 102852709 B CN102852709 B CN 102852709B CN 201210328207 A CN201210328207 A CN 201210328207A CN 102852709 B CN102852709 B CN 102852709B
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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, particularly relate 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, and the combustion gas produced directly promotes piston acting.
Start, piston moves down, inlet open, exhaust valve closure, and the mixed gas of gasoline and air enters cylinder.When after 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 fuel gas is lighted by electric plug.The combustion gas that fuel combustion produces is expanded in cylinder, promotes piston downwards and does work.When piston is again up, suction valve cuts out, and outlet valve is opened, and the flue gas after acting is discharged to air.Repeat above-mentioned compression, burning, expand, the processes such as exhaust, loop cycle, be constantly heat energy by the chemical energy of fuel, and then be converted to mechanical energy.
Traditional internal-combustion engine relies on connecting rod the linear reciprocating motion of piston to be become the rotary motion of bent axle, the transmission angle of linkage mechanism is larger (90 °), more favourable to the transmission of mechanism, and piston, connecting rod and the bent axle size of transmission angle in movement process is change, when working stroke just starts, gaseous-pressure reaches the highest, but when now piston is positioned at top dead center, transmission angle is zero, totally unfavorable to transmission; When piston runs to upper and lower stop neutral position, transmission angle also can only reach (45 °), and now piston is to also reaching maximum to the pressure angle of cylinder wall, and generation lateral force is F
c=Ftan β, hinders the straight line motion of piston; In addition, in the connecting rod of traditional combustion engine, position when connecting rod and crank conllinear is called dead point, run well by dead point smoothly to make traditional combustion engine, prestart must rely on external force to drive and just can bring into operation, even and if do not need outputting power will to have an appointment the idling of (700 revs/min) left and right after starting yet, could maintain and normally dally.
Internal-combustion engine can not proceed to operating condition voluntarily from vehicle stop state, must, by external force turning crankshaft, make it to start.Starting process can not have load, and idling mode time unloaded needs continuous consume fuel.Particularly the internal-combustion engine system of conventional truck is design is being mainly resolve contradiction as target with car load power character, acceleration and grade ability, therefore in the sense: be on the one hand just can not make engine operation under the state of saving the energy most to solve these contradictions when designed engines; The working procedure of traditional combustion engine itself and the structure for realizing working procedure, cause mean mechanical loss pressure large on the other hand.
Mean mechanical loss pressure: motor unit displacement one circulates the merit of losing.Can be used for weighing the size of mechanical loss.The i.e. composition of mechanical loss: the 1) frictional loss of piston and rings: because of transmission and the decomposition of connecting rod power, producing lateral force to cylinder wall is F
c=Ftan β, accounts for the major component of frictional loss, is about: 45-65%; 2) frictional loss of bearing and valve mechanism: the frictional loss comprising 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 subsidiary body is driven: refer to by ensureing the requisite component assembly of engine operation, as coolant pump assembly (being then cooling fan in 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 technological scheme disclosed in the application documents of double-piston hydraulic engine, although also use hydraulicdriven principle, but also do not break away from connecting rod, mechanism is still complicated, although small piston eliminates cross component force, large piston to bear larger cross component force for cost.In addition, according to pascal's principle, sacrifice the stroke of large piston for cost while large piston in oil cylinder obtains larger pressure, such kind of drive can not reduce energy loss, also new pressure energy be can not produce without foundation, more impossiblely the increase power of small displacement high-power or the function of efficiency realized.
China's publication number is CN 201723359U, denomination of invention for: in technological scheme disclosed in the patent application of hydraulic engine machine mechanism, its conversion process of energy is: the chemical energy of fuel is converted to mechanical energy through diesel engine, be converted to the pressure energy of fluid again through oil hydraulic pump, then be converted to mechanical energy through fluid power motor.China's publication number is CN 201554597U, denomination of invention is technological scheme disclosed in a kind of application documents of fluid power motor, which employs 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 the pressure energy of liquid again, is then converted to machinery through hydraulic piston and crankshaft-link rod.Above-mentioned two kinds of technological schemes all through Various Complex conversion, will inevitably cause the reduction of efficiency.
Although China's publication number fluid power motor disclosed in the application documents of CN101495730 also solves the subproblem of traditional combustion engine, but it still inherits rigidly connected connecting rod, this requires that the error of the concentricity of opposed cylinder, ovality and tapering must be very little, makes manufacture and the processing all quite difficulty of engine main body parts; During engine operation because there is very large pressure difference in opposed two hydraulic chambers, and rigid link must between two hydraulic chambers fast moving, the slipper seal of hydraulic chamber and connecting rod is required very high; In addition it inherits the independently intake valve of traditional combustion engine, and this makes motor mechanisms complicated, and the mechanism of valve motion and controlling method are very numerous and diverse, and the convenience of reliability and maintenance reduces all greatly.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of fluid power motor and controlling method thereof, effectively can improve energy conversion efficiency, fuel saving consumption, reduces environmental pollution, and simple and reliable for structure, is easy to safeguard.
The present invention solves the problems of the technologies described above the technological scheme adopted to be to provide a kind of fluid power motor, comprise cylinder, described cylinder comprises cylinder sleeve and cylinder cap, described cylinder cap is provided with fuel atomization nozzle and exhaust valve, wherein, be provided with the piston of band return spring in described cylinder sleeve, described upper piston area is firing chamber, bottom is hydraulic chamber, and described hydraulic chamber is provided with an in line check valve and an oil outlet one-way valve; The installation direction of described in line check valve and oil outlet one-way valve is contrary and be connected to form closed-loop path by high-pressure oil pipe, return tube and oil hydraulic motor.
Further, described cylinder comprises the first cylinder and the second cylinder, and the in line check valve on described two cylinders and oil outlet one-way valve bridge-type are connected to form closed-loop path.
Further, described in line check valve and the high-pressure oil outlet of oil outlet one-way valve are connected with the high pressure entry of three position four-way directional control valve and are communicated with accumulation of energy vibration damper, two exit from dos of described three position four-way directional control valve are communicated with high voltage interface and the low-voltage interface outputting power of oil hydraulic motor respectively, and the low pressure oil outlet of described three position four-way directional control valve is connected with the low pressure filler opening of in line check valve.
Further, described exhaust valve is connected with one end of rocking arm, and the other end of described rocking arm connects fork, and the two ends up and down of described fork form two revolute pairs with rocking arm, exhaust valve respectively, and described rocking arm is fixed on pitman arm shaft.
Further, described fuel gas nozzle is provided with fuel joint, oxygen connection and igniting electromagnetic coil, fuel needle is provided with in the pipeline at described fuel joint place, oxygen spool is provided with in the pipeline at described oxygen connection place, the ignition primary winding of described igniting electromagnetic coil is connected with fuel needle, oxygen spool, and the igniting secondary windings of described igniting electromagnetic coil is connected with spark plug.
Further, described high-pressure oil pipe is also provided with air condition compressor and gas compressor, described gas compressor is connected with fuel atomization nozzle by nitrogen oxygen separator.
The present invention also provides a kind of controlling method of above-mentioned fluid power motor for solving the problems of the technologies described above, described cylinder comprises the first cylinder and the second cylinder, in line check valve on described two cylinders and oil outlet one-way valve bridge-type are connected to form 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 appropriate amount of fuel and oxygen and light a fire, the piston that combustion gas promotes the first cylinder moves down, the high pressure oil of the first cylindrical liquid pressure chamber sends 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, 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 to move down close to lower dead center or gaseous-pressure close to atmospheric pressure, open the first inblock cylinder valve and oiling valve one-way valve, progressively close the first cylinder oil outlet one-way valve; Now the second cylinder piston is close to top dead center, closes exhaust valve and the in line check valve of the second cylinder, opens the oil outlet one-way valve of the second cylinder, and in the second cylinder, spray into appropriate amount of fuel and oxygen and light a fire, the second cylinder is started working; C) step is repeated a) and b), described first cylinder and the alternation successively of the second cylinder; D) when fluid power motor needs break-off, close 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 are connected.
The present invention contrasts prior art following beneficial effect: fluid power motor provided by the invention and controlling method thereof, adopt a pair one-way valve formation oil circulation to make hydraulic energy orientation be delivered to oil hydraulic motor externally to do work, and at any time can no-load running, eliminate the brace and connecting rod framework of conventional, four-stroke motor, camshaft and timing drive mechanism, thus effectively improve energy conversion efficiency, fuel saving consumption, reduce environmental pollution, and simple and reliable for structure, be easy to safeguard.
Accompanying drawing explanation
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 devolatilisation modular construction schematic diagram 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.
In figure:
1 cylinder 2 cylinder sleeve 3 piston
4 return spring 5 exhaust valve 6 accumulation of energy vibration dampers
7 three position four-way directional control valve 8 oil hydraulic motor 9 forks
10 rocking arm 11 pitman arm shaft 12 gas compressor pistons
13 gas compressor exhaust check valve 14 compressor air inlet machine one-way valve 15 gas compressor piston return springs
16 two-position three way magnetic valve 17 compressor piston 18 compressor air-discharging one-way valves
19 compressor breather check valve 20 compressor pressure sensor 21 fuel tanks
22 petrolift 23 air inlets and fuel solenoid valve 24 fuel atomization nozzle
25 valve position sensor 26 gas holder 27 return tubes
28 igniting electromagnetic coil 29 fuel joint 30 fuel needles
31 oxygen connection 32 oxygen spool 33 ignition primary windings
34 igniting secondary windings 35 high-pressure oil pipe 36 nitrogen oxygen separators
37 high pressure oxygen pipeline 38 oxygen filling interface 39 compressed air lines
41,43 in line check valve 42,44 oil outlet one-way valve 45 air condition compressor
46 exhaust gear 47 gas compressor 48 admission gears
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
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, described cylinder cap is provided with fuel atomization nozzle 24 and exhaust valve 5, wherein, be provided with the piston 3 of band return spring 4 in described cylinder sleeve 2, described piston 3 top is firing chamber, 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; The installation direction of described in line check valve 42 and oil outlet one-way valve 41 is contrary and be connected to form closed-loop path by high-pressure oil pipe 35, return tube 27 with oil hydraulic motor 8.
Fluid power motor provided by the invention, the number of cylinder 1 is preferably two, also can adopt the multi-cylinder structure of more than 3 cylinders.Refer to 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 four one-way valves and is combined into bridge-type valve sets, piston 3 and piston return spring 4 are arranged in cylinder sleeve 2, upper piston area inside cylinder sleeve 2 is firing chamber, piston lower portion is hydraulic chamber, hydraulic chamber is connected with the intermediate portion of the one-way valve of connecting between two in bridge-type valve sets, also be communicated with accumulation of energy vibration damper 6 while the one-way valve oil outlet of bridge-type valve sets is connected with the high pressure entry of three position four-way directional control valve 7, two exit from dos of three position four-way directional control valve are communicated with the object that the high voltage interface of oil hydraulic motor 8 and low-voltage interface reach outputting power respectively, the low pressure oil outlet of three position four-way directional control valve 7 is connected with the low-pressure inlet of bridge-type valve sets one-way valve.
Fluid power motor provided by the invention, eliminate the brace and connecting rod framework of conventional, four-stroke motor: comprise bent axle, connecting rod, crankshaft bearing, connecting rod bearing, and maintenance connecting rod runs the annexes such as necessary flywheel, starter motor and oil pump, eliminate the camshaft of traditional combustion engine, camshaft bearing and timing drive mechanism in addition, or even intake valve has also been integrated into together with oil spout blast nozzle with spark coil etc., simple and reliable for structure, be easy to safeguard.To double-cylinder hydraulic motor, working procedure is as follows: fuel burns the high-temperature high-pressure fuel gas produced and directly promotes hydraulic oil acting through piston in cylinder combustion.Start, 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 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 flow to the filler opening of in line check valve 43 after low pressure oil efflux pressure motor 8 through three position four-way directional control valve 7 and pipeline, the hydraulic chamber through another cylinder promotes piston 3 upwards and be vented.In the folding process of acting piston, oil pressure reduces along with the continuous reduction of gaseous-pressure, when oil pressure does work jointly lower than discharging oil pressure and piston 3 in accumulation of energy vibration damper 6 during oil pressure, piston 3 continues descending, and the inertia continuation of combustion gas overbottom pressure and liquid stream is to oil hydraulic motor 8 oil extraction.When gaseous-pressure drops to close to 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 acting after over-heat-exchanger heat absorption recovered energy discharged to air.Repeating above-mentioned air inlet, burning expansion, the processes such as exhaust, loop cycle, is constantly heat energy by the chemical energy of fuel, transmits through piston 3 equivalence the pressure energy becoming liquid, 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 is connected with the fuel atomization nozzle 24 in 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, nitrogen oxygen separator 36 is entered by compressed air line 39 after the pressurization of the fresh air in the external world, nitrogen oxygen separator 36 comprises molecular sieve-4 A and molecular sieve B, two molecular sieve parallel connections, a job, another can carry out regeneration process simultaneously, mutual alternation and regeneration, run continuously with guarantee equipment.High pressure oxygen after separation enters gas holder 26 through high pressure oxygen pipeline 37.Oxygen filling interface 38 can be used for from outside filling oxygen, to reduce the power consumption that fluid power motor of the present invention is lost because of nitrogen oxygen separating, and the outfit of nitrogen oxygen segregation apparatus can make fluid power motor of the present invention can continuous operation under the condition not possessing outside filling oxygen.
Launch one by one 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 below.
Fig. 4 is the mechanical devolatilisation modular construction schematic diagram of fluid power motor of the present invention.
Please refer to Fig. 4, the mechanical devolatilisation system layout of fluid power motor provided by the invention exhaust valve 5, fork 9, rocking arm 10, pitman arm shaft 11.In this mechanical devolatilisation system, rocking arm 10 is fixed on pitman arm shaft 11 and also can rotates; the two ends of rocking arm 10 connect fork 9 and exhaust valve 5 respectively successively; fork about 9 two ends form two revolute pairs respectively at rocking arm 10 and exhaust valve 5, makes exhaust valve 5 be unlikely to be stuck in the process of closing and open.Except above-mentioned mechanical valve drive form, also can adopt hydraulic driving, Electromagnetic Drive, air pressure or vacuum driving, this is no longer going to repeat them.
The working procedure of fluid power motor mechanical devolatilisation mechanism is as follows: during beginning, piston 3 moves up under the acting in conjunction of piston return spring 4 and low pressure oil, left side exhaust valve 5 cuts out, and right side valve is synchronously opened under the effect of rocking arm, 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, the high-temperature high-pressure fuel gas that fuel produces in left hand cylinder combustion directly promotes to be in closed condition more closely under the effect of valve 5 also at high-pressure gas on the left of while hydraulic oil does work through piston, and right side exhaust door is then opened and reached maximum rating.In the folding process of acting piston, oil pressure constantly reduces along with gaseous-pressure and reduces, and when gaseous-pressure drops to close to atmospheric pressure, oil outlet one-way valve is closed, and exhaust valve 5 is opened, and the process in above-mentioned left side is repeated in firing chamber, right side, circulates and so forth.
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 is configured with 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 high-pressure oil pipe internal pressure is low-pressure state, gas compressor piston 12 is at the moved downward 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 flow of fresh air enters compressor housing; When high-pressure oil pipe internal pressure is high pressure conditions, gas compressor piston 12 moves upward under the promotion of high pressure oil, and now compressor air inlet machine one-way valve 14 is closed, and 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 energising is opened, the bottom promotion piston that high pressure oil enters hydraulic air condition compressor piston 17 from the high-pressure oil pipe 35 that fluid power motor one-way valve 1 outlet of the present invention is connected moves up, hydraulic air condition compressor breather check valve 19 is closed, promoted hydraulic air condition compressor exhaust check valve 18 by the refrigerant compressed open and extrude high pressure refrigerant, when hydraulic air condition compressor piston 17 moves to top, during the pressure ratio pressure duct pressure height of hydraulic air condition compressor pressure transducer 20, high pressure excuse P is closed in two-position three way magnetic valve 16 power-off, connect B simultaneously, piston is under the effect of low pressure refrigerant, hydraulic air condition compressor breather check valve 19 is opened, low pressure refrigerant enters the top of hydraulic air condition compressor piston 17 and promotes piston and move down, when hydraulic air condition compressor piston 17 moves to bottom, when the pressure of hydraulic air condition compressor pressure transducer 20 is equal with low pressure line, two-position three way magnetic valve 16 is again energized and opens, so constantly circulation.Until when refrigeration system does not need compressor operating, the long power-off of two-position three way magnetic valve 16 and quitting work.Because of the hydraulic air condition compressor in the present invention with few component just instead of requisite bent axle and the crankshaft belt pulley be attached thereto, air-conditioning belt, belt tension pulley for air-conditioner, compressor clutch, compressor clutch bearing, clutch pull in winding and complexity in conventional engines air-conditioning system the components such as many traditional air conditioner compressor
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 move to contact with the exhaust valve 5 opened time, while 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 completely, the exhaust valve of another cylinder is opened completely, 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 are energized, fuel atomization nozzle 24 sprays that fuel and air formed in proportion can the mixed gas of perfect combustion, plug ignition while air inlet and fuel solenoid valve 23 power-off stop spraying, mixed gas detonation promotion piston passes downwardly through hydraulic pressure and externally does work, now the piston of another cylinder is opened completely because of exhaust valve, piston under the promotion of return spring and return pressure on move, repeat 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, the fuel atomization nozzle 24 of fluid power motor provided by the invention is integrated with fuel joint 29, oxygen connection 31 and igniting electromagnetic coil 28, fuel needle 30 is provided with in the pipeline at fuel joint 29 place, oxygen spool 32 is provided with in the pipeline at oxygen connection 31 place, the ignition primary winding 33 of described igniting electromagnetic coil 28 and fuel needle 30, oxygen spool 32 is connected and provides open and close valve signal, the igniting secondary windings 34 of described igniting electromagnetic coil 28 is connected with spark plug and provides pulsed high-voltage fire signal, fuel joint 29 is connected 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, the electromagnetic fuel injection ignition primary winding 33 of electromagnetic fuel injection igniting electromagnetic coil 28 is energized, fuel needle 30 and oxygen spool 32 overcome return spring under the effect of electromagnetic force and hydrodynamic pressure is opened, fuel and oxygen spray into firing chamber simultaneously in proportion, until electromagnetic fuel injection ignition primary winding 33 power-off under the control of the control unit, fuel needle 30 and oxygen spool 32 return are closed, meanwhile electromagnetic fuel injection igniting secondary windings 34 produces pulsed high-voltage to plug ignition, mixed gas detonation promotion piston passes downwardly through hydraulic pressure and externally does work.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when being as the criterion of defining with claims.
Claims (6)
1. a fluid power motor, comprise cylinder (1), described cylinder (1) comprises cylinder sleeve (2) and cylinder cap, described cylinder cap is provided with fuel atomization nozzle (24) and exhaust valve (5), it is characterized in that, the piston (3) of band return spring (4) is provided with in described cylinder sleeve (2), described piston (3) top is firing chamber, 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); The installation direction of described in line check valve (42,44) and oil outlet one-way valve (41,43) is also connected to form closed-loop path by high-pressure oil pipe (35), return tube (27) with oil hydraulic motor (8) on the contrary; The high-pressure oil outlet of described in line check valve (42,44) and oil outlet one-way valve (41,43) is connected 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 high voltage interface and the low-voltage interface outputting power of oil hydraulic motor (8) respectively, and the low pressure oil outlet of described three position four-way directional control valve (7) is connected with in line check valve (42,44) filler opening.
2. fluid power motor as claimed in claim 1, it 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 and oil outlet one-way valve (41,43) bridge-type are connected to form closed-loop path.
3. fluid power motor as claimed in claim 1, it is characterized in that, described exhaust valve (5) is connected with one end of rocking arm (10), the other end of described rocking arm (10) connects fork (9), the two ends up and down of described fork (9) form two revolute pairs with rocking arm (10), exhaust valve (5) respectively, and described rocking arm (10) is fixed on pitman arm shaft (11).
4. fluid power motor as claimed in claim 1, it is characterized in that, described fuel atomization nozzle (24) is provided with fuel joint (29), oxygen connection (31) and igniting electromagnetic coil (28), fuel needle (30) is provided with in the pipeline at described fuel joint (29) place, oxygen spool (32) is provided with in the pipeline at described oxygen connection (31) place, the ignition primary winding (33) of described igniting electromagnetic coil (28) and fuel needle (30), oxygen spool (32) is connected, the igniting secondary windings (34) of described igniting electromagnetic coil (28) is connected with spark plug.
5. the fluid power motor as described in any one of Claims 1 to 4, it is characterized in that, described high-pressure oil pipe (35) is also connected with air condition compressor (45) and gas compressor (47), described gas compressor (47) is connected with fuel atomization nozzle (24) by nitrogen oxygen separator (36).
6. a controlling method for 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 appropriate amount of fuel and oxygen and light a fire, the piston that combustion gas promotes the first cylinder moves down, the high pressure oil of the first cylindrical liquid pressure chamber sends 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), 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 to move down close to lower dead center or gaseous-pressure close to 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); Now the second cylinder piston is close to top dead center, close exhaust valve (5) and the in line check valve (44) of the second cylinder, open the oil outlet one-way valve (43) of the second cylinder, in the second cylinder, spray into appropriate amount of fuel and oxygen and light a fire, the second cylinder is started working;
C) step is repeated a) and b), described first cylinder and the alternation successively of the second cylinder;
D) when fluid power motor needs break-off, close 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 are connected.
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| CN201210328207.2A CN102852709B (en) | 2012-09-06 | 2012-09-06 | Hydraulic engine and control method thereof |
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| CN201210328207.2A CN102852709B (en) | 2012-09-06 | 2012-09-06 | Hydraulic engine and control method thereof |
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| CN102852709B true CN102852709B (en) | 2014-12-31 |
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| CN103628981A (en) * | 2013-07-18 | 2014-03-12 | 常毅 | Piston type hydraulic engine |
| CN113418706B (en) * | 2021-05-31 | 2022-11-11 | 中国环境科学研究院 | Engine average friction loss pressure obtaining method and computer product |
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