CN103133133B - A kind of hydraulic pressure and mechanical double-power output device - Google Patents

Abstract

The invention belongs to the technical field of internal combustion engines and relates to a hydraulic and mechanical dual power output device. A cylinder head is fixedly installed on the top of a cylinder block; an oil pan is installed on a lower body; The upper half of the groove is fixedly connected; the slider is inlaid and installed in the slider groove; the lower part of the slider groove is provided with a hydraulic pump driving mechanism; the bottom surface of the lower body is fixed with a guide rod bracket, and the upper part of the guide rod bracket is fixed and installed with a guide There are two plunger hydraulic pumps symmetrically arranged on both sides of the lower body, and the plunger hydraulic pumps are respectively connected with an oil inlet pipeline and an oil outlet pipeline; the plunger hydraulic pump is in contact with the hydraulic pump driving mechanism through a sliding shoe, and the sliding shoe Transmits the force of the hydraulic pump driving mechanism to drive the plunger hydraulic pump to compress the fuel; the crank pin is embedded in the middle of the slider, and the crankshaft is fixedly installed in the cylinder body; its structure is simple, the principle is reliable, high energy efficiency, cost saving, fast power transmission, environmental protection friendly.

Description

A hydraulic and mechanical dual power output device

Technical field:

The invention belongs to the technical field of internal combustion engines, and relates to a device for mutual conversion of various energies, in particular to a hydraulic and mechanical dual power output device.

Background technique:

The hydraulic free-piston engine has comprehensive and high-efficiency features, but the top dead center of the hydraulic free-piston engine is not fixed, the ignition stability is poor, the output power is single, and there is only hydraulic power, so it is difficult to be directly promoted and used in the demand hydraulic and mechanical dual power machinery; Although other similar types of engines can solve the problems of unfixed top dead center and poor ignition stability in free-piston engines, they are difficult to meet the dual power requirements of hydraulic pressure and machinery simultaneously. Therefore, seeking to design a highly efficient and reliable hydraulic/mechanical dual power output device has good social practical significance and economic value.

Invention content:

The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design and provide a hydraulic and mechanical dual power output device that makes the connecting rod of the engine reciprocate, utilize the advantages of the hydraulic free-piston engine and similar engines, and use the hydraulic With the mechanical dual power output structure, aiming at the comprehensive application of dual power demand occasions, it realizes the exchange and high-efficiency output of dual power.

In order to achieve the above object, the main structure of the present invention includes cylinder head, piston, connecting rod, cylinder block, slider, crank pin, slider groove, lower body, plunger hydraulic pump, oil outlet pipeline, oil inlet pipeline, guide rod Bracket, oil pan, crankshaft, hydraulic pump drive mechanism, sliding shoes and guide rod; the cylinder head is fixedly installed on the top of the cylinder block; the oil pan is installed on the lower body, and the cylinder head, cylinder block, lower body and oil pan are combined It constitutes a body group structure closed up and down; the piston is hinged with the connecting rod through the piston pin, and the hinged connecting rod and piston penetrate from the top of the cylinder block, and the connecting rod is fixedly connected with the upper half of the slider groove; the upper and lower two halves The slider composed of a fixed combination is inlaid and installed in the slider groove and moves horizontally in the slider groove; the lower part of the slider groove is provided with a hydraulic pump driving mechanism with an inclined surface, which is used to drive the plunger hydraulic pump. The driving mechanism and the lower half of the slider groove are fixedly installed together for synchronous movement; the bottom surface of the lower body is fixed with a guide rod bracket, and the upper part of the guide rod bracket is fixedly installed with a guide rod, and the guide part of the guide rod is inserted into the hydraulic pump drive mechanism Inside, the driving mechanism of the hydraulic pump is guided; two plunger hydraulic pumps are symmetrically arranged on both sides of the lower body, and the plunger hydraulic pumps are respectively connected with an oil inlet pipeline and an oil outlet pipeline, and the engine outputs hydraulic pressure through the oil outlet pipeline. Power; the plunger hydraulic pump forms a driving relationship through the contact of the sliding shoe with the hydraulic pump driving mechanism, and the sliding shoe transmits the force of the hydraulic pump driving mechanism to drive the plunger hydraulic pump to compress fuel; the crank pin is embedded in the middle of the slider, and the crankshaft is fixed on the Cylinder body; the cylinder head, piston and cylinder block form a combustion chamber, and the expansion force generated by combustion is transmitted in two ways through the connecting rod, one of which passes through the slider, the slider groove, the hydraulic pump drive mechanism, the slider and the plunger hydraulic pump Output hydraulic power, and the other way outputs mechanical power through slider groove, slider, crank pin and crankshaft; when the piston goes down stroke or suction and power stroke, the hydraulic pump drive mechanism pushes the plunger hydraulic pump to compress the fluid and output hydraulic energy, the piston The process ends when the piston reaches the bottom dead center; when the piston is on an upward stroke, the plunger hydraulic pump resets under the action of the plunger's elastic force, and the plunger hydraulic pump is in the liquid inlet stroke, and the process ends when the piston reaches the top dead center. The plunger hydraulic pump completes a work cycle.

When the present invention is installed, the piston and the connecting rod are connected and combined to form the piston connecting rod assembly and then penetrated from the top of the cylinder block; the upper half of the slider groove is combined with the connecting rod from the bottom of the cylinder block; the crankshaft is installed on the cylinder In the bearing seat of the body; then assemble the slider and the crank pin and install them in the slider groove; fasten the lower half of the slider groove with the hydraulic pump drive mechanism to complete the combination of the crankshaft and the connecting rod; then install the lower body , Insert the guide end of the guide rod into the guide hole of the hydraulic pump drive mechanism; fix the guide rod on the guide rod bracket, and install the guide rod bracket on the lower body; then install the plunger hydraulic pump, according to the hydraulic pump drive mechanism and slide According to the matching relationship requirements of the boots, the plunger hydraulic pump is symmetrically installed on both sides of the lower body, and the corresponding oil inlet and outlet pipelines are connected; finally, the oil pan is fastened to complete the combined assembly of the entire engine.

According to the functional structure, the present invention includes a body group, a crank-link mechanism, a gas distribution mechanism, a supply system, a cooling system, a lubrication system, a starting system and a hydraulic system; the body group includes a cylinder head, a cylinder block, a lower body and an oil pan, which is The bracket of the engine, the crank connecting rod mechanism, the gas distribution mechanism, and the assembly base of the main parts of the engine system are also the connecting body connecting the various systems; the crank connecting rod mechanism includes pistons, connecting rods, sliders, crank pins, and sliders. The groove and the crankshaft convert the power of the gas acting on the top of the piston into the torque of the crankshaft, and the mechanical power is output from the end of the crankshaft to the working machine, while driving the plunger hydraulic pump, and the hydraulic power is output by the hydraulic system; the valve mechanism and the conventional engine The structure and function of the valve mechanism are the same. According to the working cycle requirements of the engine, the intake and exhaust valves are opened and closed at regular intervals to realize the ventilation process of the cylinder; the supply system has the same structure and function as that of the conventional engine. According to the requirements of different working conditions, prepare a certain amount and concentration of combustible mixture, so that the mixture will burn and expand to do work, and the exhaust gas after combustion will be discharged from the body; the cooling system is the same as that of conventional engines, so that the engine can be kept in an appropriate temperature range under all working conditions Internal; the lubrication system is similar to conventional engines, and its oil pan has a slightly larger volume than conventional engines; when the engine is working, a sufficient amount of clean lubricating oil is continuously delivered to all friction surfaces to improve the working reliability and durability of the engine The effect of nature; the starting system is the same as that of a conventional engine, and the engine is driven from a static state to a working state through the starter; the hydraulic system is the key system of the engine, and the hydraulic system enables the engine to output both mechanical and hydraulic power at the same time. The hydraulic system includes Plunger hydraulic pump, oil outlet pipeline, oil inlet pipeline, guide rod bracket, hydraulic pump drive mechanism, sliding shoe and guide rod; its function is to directly convert the force of gas acting on the top of the piston into hydraulic power output in the machine, To improve the energy conversion efficiency of the engine.

The working process of the present invention to realize hydraulic and mechanical dual power output is: when the piston is at the top dead center (the crankshaft angle is defined as 0°CA), the slider is at the middle position of the slider groove, the hydraulic pump driving mechanism is at the uppermost position, At this time, the plunger hydraulic pump is at the maximum stroke of oil intake; when the crankshaft angle is 90°CA, the slider is at the right end of the slider groove, and the hydraulic pump driving mechanism is at the middle position, the plunger hydraulic pump is at the oil pressure stroke at this time; the piston is at the bottom At the stop point, the slider is in the middle of the slider groove, and the hydraulic pump driving mechanism is at the lowest end position. At this time, the plunger hydraulic pump is at the maximum oil discharge stroke; when the crankshaft angle is 270°CA, the slider is at the left end of the slider groove position, the hydraulic pump driving mechanism is in the middle position, and the plunger hydraulic pump is in the oil inlet stroke at this time; continue to rotate and return to the top dead center position of the piston, forming a hydraulic power output 360°CA crankshaft angle is a cyclic working process; Combustion in the combustion chamber formed by the cylinder head, piston and cylinder block, the resulting expansion force is transmitted through the connecting rod in two ways, one of which outputs the hydraulic pressure through the slider, slider groove, hydraulic pump drive mechanism, sliding shoe and plunger hydraulic pump. Power; the other way outputs mechanical power through the slider groove, slider, crank pin and crankshaft; when the piston goes down (inhalation and power stroke), it drives the connecting rod down, because the upper part of the slider groove is fixedly connected with the connecting rod, and the lower part is connected with the connecting rod The hydraulic pump driving mechanism is connected, and the slider groove, the hydraulic pump driving mechanism and the connecting rod move downward synchronously. The size of the slope of the hydraulic pump driving mechanism increases continuously during the downward process, and the plunger hydraulic pump is pushed through the sliding shoe to compress the fluid and output the hydraulic pressure. Power, when the piston reaches the bottom dead center, the compressed oil output process ends; when the piston is on the upward stroke, the size of the slope of the hydraulic pump driving mechanism is continuously reduced, the plunger hydraulic pump resets under the action of the plunger elastic force, and the plunger hydraulic pump is in the liquid inlet stroke. When the piston reaches the top dead center, the process ends, and the plunger hydraulic pump completes a work cycle every time the engine turns; the mechanical power output method and process are the same as the four strokes of the existing conventional engine, and the piston is activated during the combustion work stroke. The power is transmitted to the slider through the connecting rod and the slider groove. The slider moves horizontally in the slider groove, and the slider groove moves vertically. The two movements are combined to form a circular motion of the slider and the crank pin around the center line of the crankshaft. The power transmitted by the slider groove to the slider is converted into the rotational moment of the crankshaft through the crank pin, and the mechanical power is output from the crankshaft end; realizing hydraulic and mechanical dual power output.

Compared with the prior art, the present invention overcomes the problems of unfixed top dead center and poor ignition stability of the free-piston hydraulic engine, as well as the problems of poor power transmission reliability and reduced mechanical efficiency of other similar engines, and realizes high efficiency. And reliable power conversion process in the machine; its structure is simple, the output dual power process steps and principles are reliable, high energy efficiency, cost saving, fast power transmission, and environmental friendliness.

Description of drawings:

Fig. 1 is a schematic diagram of the principle of the main structure of the present invention.

Fig. 2 is the schematic diagram of the working process principle of the main structure of the present invention, wherein a is a schematic diagram of the working principle structure, b is a schematic diagram of the principle of the piston at the top dead center, c is a schematic diagram of the principle that the crankshaft rotation angle is 90oCA, and d is a schematic diagram of the principle of the piston at the bottom dead center, e is a schematic diagram of the crankshaft angle of 270oCA.

Detailed ways:

Further description will be given below through the embodiments and in conjunction with the accompanying drawings.

Example:

The main structure of this embodiment includes a cylinder head 1, a piston 2, a connecting rod 3, a cylinder block 4, a slider 5, a crank pin 6, a slider groove 7, a lower body 8, a plunger hydraulic pump 9, an oil outlet pipeline 10, Oil inlet pipeline 11, guide rod bracket 12, oil pan 13, crankshaft 14, hydraulic pump drive mechanism 15, slipper shoe 16 and guide rod 17; cylinder head 1 is fixedly installed on the top of cylinder block 4; oil pan 13 is installed on the bottom On the body 8, the cylinder head 1, the cylinder block 4, the lower body 8 and the oil pan 13 are combined to form an upper and lower closed body group structure; the piston 2 is hinged with the connecting rod 3 through the piston pin, and the hinged connecting rod 3 and the piston 2 are connected from the The top of the cylinder block 4 penetrates, and the connecting rod 3 is fixedly connected with the upper half of the slider groove 7; Make horizontal movement; the lower part of the slider groove 7 is provided with a hydraulic pump driving mechanism 15 with a slope, which is used to drive the plunger hydraulic pump 9, and the hydraulic pump driving mechanism 15 is fixedly installed with the lower half of the slider groove 7 Do synchronous movement; the bottom surface of the lower body 8 is fixed with a guide rod bracket 12, and the upper part of the guide rod bracket 12 is fixedly installed with a guide rod 17, and the guide part of the guide rod 17 is inserted in the hydraulic pump drive mechanism 15, and the hydraulic pump drive mechanism 15 The guiding function is implemented; two plunger hydraulic pumps 9 are symmetrically arranged on both sides of the lower body 8, and the plunger hydraulic pumps 9 are respectively connected with an oil inlet pipeline 11 and an oil outlet pipeline 10, and the engine outputs hydraulic power through the oil outlet pipeline 10 The plunger hydraulic pump 9 contacts the hydraulic pump driving mechanism 15 through the sliding shoe 16 to form a driving relationship, and the sliding shoe 16 transmits the active force of the hydraulic pump driving mechanism 15 to drive the plunger hydraulic pump 9 to compress fuel; the crank pin 6 is embedded in the slider In the middle of 5, the crankshaft 14 is fixedly installed in the cylinder block 4; the cylinder head 1, the piston 2 and the cylinder block 4 form a combustion chamber, and the expansion force generated by combustion is transmitted in two ways through the connecting rod 3, one of which passes through the slider 5, the slider Block groove 7, hydraulic pump driving mechanism 15, slipper shoe 16 and plunger hydraulic pump 9 output hydraulic power, and the other way outputs mechanical power through slider groove 7, slider 5, crank pin 6 and crankshaft 14; Piston 2 descends stroke or During the suction and power strokes, the hydraulic pump driving mechanism 15 pushes the plunger hydraulic pump 9 to compress the fluid and output hydraulic energy, and the process ends when the piston 2 reaches the bottom dead center; Resetting under the effect of elastic force, the plunger hydraulic pump 9 is in the liquid intake stroke, and the process ends when the piston 2 reaches the top dead center, and the plunger hydraulic pump 9 completes a working cycle every revolution of the engine.

When this embodiment is installed, the piston 2 and the connecting rod 3 are first connected and combined to form a piston connecting rod assembly and then penetrated from the top of the cylinder block 4; Combination; install the crankshaft 14 in the bearing seat of the cylinder block 4; then assemble the slider 5 and the crank pin 6 and install them in the slider groove 7; fasten the lower half of the slider groove with the hydraulic pump drive mechanism 15 , complete the combination of the crankshaft 14 and the connecting rod 3; then install the lower body 8, insert the guide end of the guide rod 17 into the guide hole of the hydraulic pump drive mechanism 15; fix the guide rod 17 on the guide rod bracket 12, and place the guide rod bracket 12 is installed on the lower body 8; then the plunger hydraulic pump 9 is installed, and the plunger hydraulic pump 9 is symmetrically installed on both sides of the lower body 8 according to the requirements of the cooperation relationship between the hydraulic pump drive mechanism 15 and the sliding shoe 16, and connected to the corresponding The oil inlet pipeline 11 and the oil outlet pipeline 10; finally buckle the oil pan 13 to complete the combined assembly of the entire engine.

According to the functional structure, this embodiment includes a body group, a crank-link mechanism, a gas distribution mechanism, a supply system, a cooling system, a lubrication system, a starting system and a hydraulic system; the body group includes a cylinder head 1, a cylinder block 4, a lower body 8 and oil Bottom case 13, is the support of this engine and crank-rod mechanism, gas distribution mechanism, the assembling matrix of each system main parts of engine, also is the connecting body of contacting each system; Crank-rod mechanism comprises piston 2, connecting rod 3, slide Block 5, crank pin 6, slider groove 7 and crankshaft 14 convert the power of gas acting on the top of the piston into the torque of the crankshaft, output mechanical power from the end of the crankshaft to the working machine, and drive the plunger hydraulic pump 9 at the same time. The hydraulic system outputs hydraulic power; the valve mechanism has the same structure and function as that of a conventional engine, and can regularly open and close the intake and exhaust valves according to the working cycle requirements of the engine to realize the ventilation process of the cylinder; the supply system is the same as that of a conventional engine. The supply system of the engine has the same structure and function. According to the requirements of different working conditions of the engine, a certain amount and concentration of combustible mixture gas is prepared, so that the mixture gas burns and expands to do work, and the exhaust gas after combustion is discharged from the body; the cooling system is the same as that of a conventional engine. Keep the engine within an appropriate temperature range under all working conditions; the lubrication system is similar to a conventional engine, and its oil pan 13 has a slightly larger volume than a conventional engine; when the engine is working, a sufficient amount of clean lubricating oil is continuously delivered It reaches all the friction surfaces to achieve the effect of improving the working reliability and durability of the engine; the starting system is the same as that of a conventional engine, and the engine is driven from a static state to a working state through the starter; the hydraulic system is the key system of the engine, and the hydraulic system makes the engine It can output both mechanical and hydraulic power at the same time. The hydraulic system includes a plunger hydraulic pump 9, an oil outlet pipeline 10, an oil inlet pipeline 11, a guide rod bracket 12, a hydraulic pump drive mechanism 15, a sliding shoe 16 and a guide rod 17. The function is to convert the force of the gas acting on the top of the piston directly into the hydraulic power output in the machine, so as to improve the energy conversion efficiency of the engine.

The working process of this embodiment to realize the dual power output of hydraulic pressure and machinery is: as shown in Figure 2, when the piston 2 is at the top dead center (the rotation angle of the crankshaft 14 is defined as 0°CA), the slider 5 is in the position of the slider groove 7. In the middle position, the hydraulic pump driving mechanism 15 is at the uppermost position, and the plunger hydraulic pump 9 is at the maximum stroke of oil inlet; when the rotation angle of the crankshaft 14 is 90°CA, the slider 5 is at the right end position of the slider groove 7, and the hydraulic pump drives The mechanism 15 is in the middle position, and the plunger hydraulic pump 9 is in the oil pressure stroke at this time; when the piston is at the bottom dead center, the slider 5 is in the middle position of the slider groove 7, and the hydraulic pump driving mechanism 15 is in the lowest position, and the plunger The hydraulic pump 9 is at the maximum oil discharge stroke; when the rotation angle of the crankshaft 14 is 270°CA, the slider 5 is at the left end position of the slider groove 7, and the hydraulic pump driving mechanism 15 is at the middle position, and the plunger hydraulic pump 9 is at the oil inlet stroke at this time ; continue to rotate and return to the top dead center position of piston 2, forming a hydraulic power output 360 ° CA crankshaft angle is a cyclic work process; the mixture is burned in the combustion chamber formed by cylinder head 1, piston 2 and cylinder block 4, and the resulting The expansion force is transmitted through the connecting rod 3 in two ways, one of which outputs hydraulic power through the slider 5, the slider groove 7, the hydraulic pump driving mechanism 15, the slider 16 and the plunger hydraulic pump 9; the other way through the slider groove 7 , slider 5, crank pin 6 and crankshaft 14 output mechanical power; when the piston 2 goes down stroke (suction and power stroke), it drives the connecting rod 3 to go down, because the upper part of the slider groove 7 is fixedly connected with the connecting rod 3, and the lower part is connected with the hydraulic pressure The pump driving mechanism 15 is connected, the slider groove 7, the hydraulic pump driving mechanism 15 and the connecting rod 3 move downward synchronously, the size of the slope of the hydraulic pump driving mechanism 15 continues to increase during the downward process, and the plunger hydraulic pump 9 is pushed by the sliding shoe 16 , compress the fluid and output the hydraulic power, the compressed oil output process ends when the piston 2 reaches the bottom dead center; when the piston 2 goes up the stroke, the size of the inclined plane of the hydraulic pump driving mechanism 15 shrinks continuously, and the plunger hydraulic pump 9 resets under the action of the plunger elastic force , the plunger hydraulic pump 9 is in the liquid intake stroke, and the process ends when the piston 2 reaches the top dead center, and the plunger hydraulic pump 9 completes a work cycle every time the engine turns; the mechanical power output method and process are the same as those of the existing conventional engine The four strokes are the same, and the power of the piston 2 is transmitted to the slider 5 through the connecting rod 3 and the slider groove 7 during the combustion power stroke, the slider 5 moves horizontally in the slider groove 7, and the slider groove 7 moves vertically , the two movements are compounded to form a circular motion of the slider 5 and the crank pin 6 around the center line of the crankshaft 14, the power transmitted to the slider by the slider groove 7 is transformed into the rotational torque of the crankshaft 14 through the crank pin 6, and output from the crankshaft end Mechanical power; realize hydraulic and mechanical dual power output.

Claims (2)

1. hydraulic pressure and a mechanical double-power output device, is characterized in that agent structure comprises cylinder head, piston, connecting rod, cylinder block, slide block, crank pin, slide block slot, lower body, plunger hydraulic pump, outlet line, in-line, guide rod support, oil sump, bent axle, hydraulic pump drive mechanism, piston shoes and guide rod; The fixed installation of cylinder block top is shaped with cylinder head; Oil sump is arranged on lower body, and the combination of cylinder head, cylinder block, lower body and oil sump forms the body group structure closed up and down; Piston is by wrist pin and rod hinge connection, and the connecting rod after hinged and piston penetrate from the top of cylinder block, and connecting rod is fixedly connected with the upper half side of slide block slot; The slide block that upper and lower two half side fixed Combination are formed is inlayed and is arranged in slide block slot and moves horizontally in slide block slot; The bottom of slide block slot is provided with the hydraulic pump drive mechanism on band inclined-plane, and for the work of drive plunger oil hydraulic pump, lower half side being fixedly installed togather of hydraulic pump drive mechanism and slide block slot is synchronized with the movement; The bottom surface of lower body is fixedly shaped with guide rod support, and the fixed installation of guide rod support top is shaped with guide rod, and the targeting part of guide rod inserts in hydraulic pump drive mechanism, to the leading role of hydraulic pump drive mechanism for implementing; The bilateral symmetry of lower body is furnished with two plunger hydraulic pumps, and plunger hydraulic pump connects respectively and is shaped with in-line and outlet line, motor is by outlet line output hydraulic pressure power; Plunger hydraulic pump forms driving relationship by piston shoes and hydraulic pump drive mechanism contacts, the active force of piston shoes carrier fluid press pump driving mechanism, drive plunger oil hydraulic pump compression fuel oil; Crank pin is embedded in the middle of slide block, and bent axle is fixedly mounted in cylinder block; Cylinder head, piston and cylinder block form firing chamber, the expansive force that burning produces divides two-way to spread out of by connecting rod, wherein lead up to slide block, slide block slot, hydraulic pump drive mechanism, piston shoes and plunger hydraulic pump output hydraulic pressure power, separately leading up to slide block slot, slide block, crank pin and bent axle exports machine power; During descent of piston stroke, hydraulic pump drive mechanism urges plunger hydraulic pump compressed fluid output hydraulic pressure energy, during piston arrives lower dead center, downward stroke terminates; During piston up-stroke, plunger hydraulic pump resets under the effect of plunger elastic force, and plunger hydraulic pump is in feed liquor stroke, and during piston arrives top dead center, upward stroke terminates, and the motor plunger hydraulic pump that often turns around completes a power cycle.

2. hydraulic pressure according to claim 1 and mechanical double-power output device, it is characterized in that realizing the working procedure that hydraulic pressure and mechanical double-power export is: when piston is defined as 0 DEG C of A at top dead center and crank angle, slide block is in the neutral position of slide block slot, hydraulic pump drive mechanism is in position, the top, and now plunger hydraulic pump is in oil-feed range; During crank angle 90 DEG C of A, slide block is in the right end position of slide block slot, and hydraulic pump drive mechanism is in neutral position, and now plunger hydraulic pump is in force feed stroke; Piston is when lower dead center, and slide block is in the neutral position of slide block slot, and hydraulic pump drive mechanism is in lowest positions, and now plunger hydraulic pump is in fuel-displaced range; During crank angle 270 DEG C of A, slide block is at the left position of slide block slot, and hydraulic pump drive mechanism is in neutral position, and now plunger hydraulic pump is in oil-feed stroke; Be rotated further and get back to piston top dead center position, it is an On The Cycle Working Process that formation hydraulic power exports 360 DEG C of A crank angles; The firing chamber combustion that mixed gas is formed in cylinder head, piston and cylinder block, the expansive force of generation divides two-way to spread out of by connecting rod, wherein leads up to slide block, slide block slot, hydraulic pump drive mechanism, piston shoes and plunger hydraulic pump output hydraulic pressure power; Separately lead up to slide block slot, slide block, crank pin and bent axle export machine power; During descent of piston stroke, drivening rod is descending, because slide block slot top and connecting rod are fixedly linked, bottom is connected with hydraulic pump drive mechanism, slide block slot, hydraulic pump drive mechanism and connecting rod synchronously do downward movement, and hydraulic pump drive mechanism inclined-plane size in descending process constantly becomes large, promotes plunger hydraulic pump by piston shoes, compressed fluid output hydraulic pressure power, during piston arrives lower dead center, compressed oil output procedure terminates; During piston up-stroke, hydraulic pump drive mechanism inclined-plane size constantly reduces, and plunger hydraulic pump resets under the effect of plunger elastic force, and plunger hydraulic pump is in feed liquor stroke, during piston arrives top dead center, upward stroke terminates, and the motor plunger hydraulic pump that often turns around completes a power cycle; Machine power output intent is identical with four strokes of the motor of existing routine with process, and the power of piston passes to slide block by connecting rod, slide block slot when work by combustion stroke, slide block does horizontal motion in slide block slot, slide block slot does vertical motion, two motion synthesis form slide blocks and crank pin and move in a circle around the center line of bent axle, slide block slot passes to the power of slide block, is transformed into the running torque of bent axle, exports machine power by crankshaft end by crank pin; Realize hydraulic pressure and mechanical double-power exports.