A dual-crankshaft compressed air engine

Abstract

A dual-crankshaft compressed air engine includes an upper body and a lower body. The upper body is provided with a left cylinder buffer storage chamber, a lever, a left lever connecting rod pin, a left lever connecting rod, a left crankshaft, a left crankshaft seat, a left connecting rod, a left piston pin, a left piston, a left cylinder, a left movable valve pushrod, a left movable valve sleeve, a left gasket, a left exhaust valve plate, a left exhaust cover, a left exhaust port, a left camshaft with a cam, a left camshaft cover, a lever seat, a lever shaft, a bearing, a right lever connecting rod pin, a right lever connecting rod, a right crankshaft, a right crankshaft seat, a right connecting rod, a right cylinder, a right piston pin, a right piston, a right movable valve pushrod, a right movable valve sleeve, a right gasket, a right exhaust valve plate, a right exhaust cover, a right exhaust port, a right camshaft with a cam, a right camshaft cover, and a right cylinder buffer storage chamber, etc. This invention has the advantages of strong explosive force, high torque, exhaust energy recycling and reuse, low construction and power generation costs, stable power generation, high power generation efficiency, low energy consumption, and environmental protection.

Description

Technical Field

[0001] This invention relates to a dual-crankshaft compressed air engine. Background Technology

[0002] Air engines are a type of power equipment widely used in industrial and agricultural machinery, automobiles, and power generation. Existing pneumatic motors, both domestically and internationally, suffer from small cylinder diameters, limited cylinder numbers, low power output, lack of explosive force, low torque, and the inability to recycle and reuse exhaust gas. Existing compressed air power plants require underground storage of compressed air for power generation, increasing both construction and generation costs. The patented technology ZL202010587204.5 uses only one crankshaft to drive the generator, resulting in low power generation efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a dual-crankshaft compressed air engine with strong explosive force, high torque, exhaust energy recycling and reuse, no need for underground storage of compressed air for power generation, low construction and power generation costs, stable power generation, and high power generation efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A dual-crankshaft compressed air engine includes an upper body and a lower body. The upper body is provided with a left cylinder buffer storage chamber, a lever, a left lever connecting rod pin, a left lever connecting rod, a left crankshaft, a left crankshaft seat, a left connecting rod, a left piston pin, a left piston, a left cylinder, a left movable valve pushrod, a left movable valve sleeve, a left gasket, a left exhaust valve plate, a left exhaust cover, a left exhaust port, a left camshaft with a cam, a left camshaft cover, a lever seat, a lever shaft, a bearing, a right lever connecting rod pin, a right lever connecting rod, a right crankshaft, a right crankshaft seat, a right connecting rod, a right cylinder, a right piston pin, a right piston, a right movable valve pushrod, a right movable valve sleeve, a right gasket, a right exhaust valve plate, a right exhaust cover, a right exhaust port, a right camshaft with a cam, a right camshaft cover, and a right cylinder buffer storage chamber.

[0006] The left cylinder buffer storage chamber is provided with a left air inlet. The left cylinder is connected to the left cylinder buffer storage chamber. The left piston is fitted with the left cylinder and is connected to the left crankshaft through the left piston pin and the left connecting rod. The left crankshaft is mounted on the upper body through the left crankshaft seat.

[0007] The right cylinder buffer storage chamber is provided with a right air inlet. The right cylinder is connected to the right cylinder buffer storage chamber. The right piston is fitted with the right cylinder and is connected to the right crankshaft through the right piston pin and the right connecting rod. The right crankshaft is mounted on the upper body through the right crankshaft seat.

[0008] The lever is mounted on the lever seat via a lever shaft and bearings. The left end of the lever is connected to the left crankshaft via a left lever connecting pin and a left lever connecting rod. The right end of the lever is connected to the right crankshaft via a right lever connecting pin and a right lever connecting rod.

[0009] The left movable valve pushrod has an exhaust port, the left movable valve pushrod is fitted and connected to the left movable valve sleeve and is located above the left cylinder, the left movable valve sleeve has an exhaust port, the left movable valve sleeve is mounted on the upper engine block, the left exhaust valve plate has an exhaust port, the left exhaust valve plate is mounted on the left movable valve sleeve, a left sealing gasket is provided between the left exhaust valve plate and the left movable valve sleeve, the left sealing gasket is connected to the left movable valve pushrod, the left exhaust cover has a left exhaust port, the left exhaust cover is mounted on the left exhaust valve plate, the left movable valve pushrod passes through the left movable valve sleeve, the left sealing gasket, the left exhaust valve plate, and the left exhaust cover, and contacts the left camshaft with a cam, the left camshaft with a cam is mounted on the camshaft seat inside the left exhaust cover, the left camshaft cover is mounted on the left exhaust cover, and the left camshaft cover, the left camshaft seat with a cam, the left exhaust cover, the left exhaust valve plate, and the left movable valve sleeve are fastened together with screws through screw holes;

[0010] The right movable valve pushrod has an exhaust port, the right movable valve pushrod is fitted and connected to the right movable valve sleeve and is located above the right cylinder, the right movable valve sleeve has an exhaust port, the right movable valve sleeve is mounted on the upper engine block, the right exhaust valve plate has an exhaust port, the right exhaust valve plate is mounted on the right movable valve sleeve, a right sealing gasket is provided between the right exhaust valve plate and the right movable valve sleeve, the right sealing gasket is connected to the right movable valve pushrod, the right exhaust cover has a right exhaust port, the right exhaust cover is mounted on the right exhaust valve plate, the right movable valve pushrod passes through the right movable valve sleeve, the right sealing gasket, the right exhaust valve plate, and the right exhaust cover, and contacts the right camshaft with a cam, the right camshaft with a cam is mounted on the camshaft seat inside the right exhaust cover, the right camshaft cover is mounted on the right exhaust cover, and the right camshaft cover, the right camshaft with a cam, the right exhaust cover, the right exhaust valve plate, and the right movable valve sleeve are fastened together with screws through screw holes;

[0011] Both the left and right crankshafts are equipped with first synchronous pulleys, and both the left camshaft with a cam and the right camshaft with a cam are equipped with second synchronous pulleys. The first synchronous pulleys are connected to the second synchronous pulleys via synchronous belts.

[0012] Furthermore, the upper body and the lower body are fastened together as a whole by screws through screw holes.

[0013] Furthermore, the system also includes an air tank, a left intake pipe, a left one-way valve, a left exhaust pipe, a right intake pipe, a right one-way valve, a right exhaust pipe, a left generator, and a right generator. The air tank is equipped with a drain valve, a left air inlet, a left air outlet, a right air outlet, a right air inlet, a pressure relief valve, and an electric air pump. The left air inlet of the left cylinder buffer air storage chamber is connected to the left exhaust outlet of the air tank via the left intake pipe. The right air inlet of the right cylinder buffer air storage chamber is connected to the right exhaust outlet of the air tank via the right intake pipe. The left exhaust outlet on the left exhaust cover is connected to the left air inlet of the air tank via the left exhaust pipe equipped with a left one-way valve. The right exhaust outlet on the right exhaust cover is connected to the right air inlet of the air tank via the right exhaust pipe equipped with a right one-way valve. The left generator is connected to the left crankshaft, and the right generator is connected to the right crankshaft.

[0014] Furthermore, a starting device is provided, which includes an electric motor and toothed flywheels provided on the left crankshaft and the right crankshaft. One of the toothed flywheels provided on the left crankshaft and the right crankshaft meshes with a gear on the output shaft of the electric motor.

[0015] Furthermore, the upper body is provided with a left air pump connecting rod, a left air pump piston, a left air pump cylinder, a left air pump valve plate, and a left air pump cylinder cover; the left air pump piston is fitted with the left air pump cylinder, the left air pump connecting rod is connected to the left crankshaft and the left air pump piston respectively, the left air pump valve plate is installed on the left air pump cylinder, the left air pump cylinder cover is installed on the left air pump valve plate, the left air pump cylinder cover is provided with a left air pump exhaust port and a left air pump inlet port, and the left air pump cylinder cover, left air pump valve plate, and left air pump cylinder are fastened together with screws through screw holes; the left air pump exhaust port on the left air pump cylinder cover is connected to the left inlet port of the air storage tank through a left exhaust pipe equipped with a left one-way valve.

[0016] Furthermore, the upper body is equipped with a right air pump connecting rod, a right air pump cylinder, a right air pump piston, a right air pump valve plate, and a right air pump cylinder cover. The right air pump piston is fitted into the right air pump cylinder. The right air pump connecting rod is connected to the right crankshaft and the right air pump piston respectively. The right air pump valve plate is mounted on the right air pump cylinder, and the right air pump cylinder cover is mounted on the right air pump valve plate. The right air pump cylinder cover is equipped with a right air pump exhaust port and a right air pump inlet. The right air pump cylinder cover, right air pump valve plate, and right air pump cylinder are fastened together with screws through screw holes. The right air pump exhaust port on the right air pump cylinder cover is connected to the right inlet of the air tank through a right exhaust pipe equipped with a right one-way valve. The left and right air pumps on the upper body can be replaced by electric air pumps.

[0017] Furthermore, the left crankshaft, left cylinder, left piston, left connecting rod, left lever, and lever of the dual-crankshaft compressed air engine correspond to the right crankshaft, right cylinder, right piston, right connecting rod, and right lever as a group, but the design of the dual-crankshaft compressed air engine is not limited to one group.

[0018] Compared with existing air engines, the dual-crankshaft compressed air engine of this invention uses a cylinder buffer storage chamber and employs a cam and movable valve pushrod to control the intake and exhaust of the air engine cylinder piston. The crankshaft is connected by levers and connecting rods. As the pistons of the left and right cylinders of the engine work in turn, they push the pistons upward to compress the exhaust gas in the cylinder into the storage tank for recycling. This makes the compressed air drive the air engine piston, crankshaft, and levers to work stably. It has the advantages of strong explosive force, high torque, power generation without underground storage of compressed air, low construction and power generation costs, stable power generation, high power generation efficiency, low energy consumption, and environmental protection. It can be widely used in various industries such as transportation, automobiles, ships, electric air generator sets, and compressed air power station generator sets. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the dual-crankshaft compressed air engine of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the left crankshaft portion of the embodiment shown;

[0021] Figure 3 for Figure 1 A schematic diagram of the right crankshaft portion of the embodiment shown;

[0022] Figure 4 for Figure 1 An exploded view of the left (right) cylinder, left (right) movable valve pushrod, left (right) movable valve sleeve, left (right) gasket, left (right) exhaust valve plate, left (right) exhaust cover, and left (right) camshaft cover of the embodiment shown.

[0023] Figure 5 for Figure 4 Top view of the left (right) movable valve pushrod shown;

[0024] Figure 6 for Figure 4 Top view of the left (right) movable valve sleeve shown;

[0025] Figure 7 for Figure 4 Top view of the left (right) exhaust valve plate shown;

[0026] Figure 8 for Figure 1 The diagram shows the operating system structure of the dual-crankshaft compressed air engine.

[0027] In the diagram: 1-Double crankshaft compressed air engine, 2-Upper engine block, 3-Lower engine block, 4-Left cylinder buffer air reservoir, 5-Lever, 6-Left lever connecting rod pin, 7-Left lever connecting rod, 8-Left crankshaft, 9-Left crankshaft seat, 10-Left piston pin, 11-Left piston, 12-Left cylinder, 13-Left movable valve pushrod, 14-Left movable valve sleeve, 15-Left gasket, 16-Left exhaust valve plate, 17-Left exhaust cover, 18-Left exhaust port, 19-Left camshaft with cam, 20- 21-Left camshaft cover, 22-Lever seat, 23-Bearing, 24-Right lever connecting rod pin, 25-Right crankshaft, 26-Right crankshaft seat, 27-Right connecting rod, 28-Right cylinder, 29-Right piston pin, 30-Right piston, 31-Right movable valve pushrod, 32-Right movable valve sleeve, 33-Right gasket, 34-Right exhaust valve plate, 35-Right exhaust cover, 36-Right exhaust port, 37-Right camshaft with cam, 38-Right camshaft cover, 39-Right cylinder buffer reservoir Air chamber, 40-screw hole, 41-left air inlet, 42-right air inlet, 43-left air pump connecting rod, 44-left air pump piston, 45-left air pump cylinder, 46-left air pump valve plate, 47-left air pump cylinder head, 48-left air pump exhaust port, 49-right air pump connecting rod, 50-right air pump cylinder, 51-right air pump piston, 52-right air pump valve plate, 53-right air pump cylinder head, 54-right air pump exhaust port, 55-air tank, 56-left air inlet pipe, 57-left air pump inlet, 58-... 59-Left one-way valve, 60-Left exhaust pipe, 61-Drain valve, 62-Left air inlet of air tank, 63-Left exhaust port of air tank, 64-Right exhaust port of air tank, 65-Right air inlet of air tank, 66-Right air pump inlet, 67-Right one-way valve, 68-Right exhaust pipe, 69-First synchronous pulley, 70-Second synchronous pulley, 71-Synchronous belt, 72-Pressure relief valve, 73-Electric air pump, 74-Left generator, 75-Right generator, 76-Geared flywheel. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1-8A dual-crankshaft compressed air engine 1 includes an upper body 2 and a lower body 3. The upper body 2 is provided with a left cylinder buffer storage chamber 4, a lever 5, a left lever connecting rod pin 6, a left lever connecting rod 7, a left crankshaft 8, a left crankshaft seat 9, a left connecting rod, a left piston pin 10, a left piston 11, a left cylinder 12, a left movable valve pushrod 13, a left movable valve sleeve 14, a left sealing gasket 15, a left exhaust valve plate 16, a left exhaust cover 17, a left exhaust port 18, and a left camshaft with a cam 19. 20. Left camshaft cover, 21. Lever seat, 22. Lever shaft, 23. Bearing, 24. Right lever connecting pin, 25. Right lever connecting rod, 26. Right crankshaft, 27. Right crankshaft seat, 28. Right connecting rod, 29. Right cylinder, 30. Right piston pin, 31. Right movable valve pushrod, 32. Right movable valve sleeve, 33. Right gasket, 34. Right exhaust valve plate, 35. Right exhaust cover, 36. Right exhaust port, 37. Right camshaft with cam, 38. Right camshaft cover, and 39. Right cylinder buffer reservoir.

[0030] The left cylinder buffer storage chamber 4 is provided with a left air inlet 41. The left cylinder 12 is connected to the left cylinder buffer storage chamber 4. The left piston 11 is fitted with the left cylinder 12 and is connected to the left crankshaft 8 through the left piston pin 10 and the left connecting rod. The left crankshaft 8 is mounted on the upper body 2 through the left crankshaft seat 9.

[0031] The right cylinder buffer storage chamber 39 is provided with a right air inlet 42. The right cylinder 28 is connected to the right cylinder buffer storage chamber 39. The right piston 30 is fitted with the right cylinder 28 and is connected to the right crankshaft 25 through the right piston pin 29 and the right connecting rod 27. The right crankshaft 25 is mounted on the upper body 2 through the right crankshaft seat 26.

[0032] The lever 5 is mounted on the lever seat 21 via the lever shaft 22 and the bearing 23. The left end of the lever 5 is connected to the left crankshaft 8 via the left lever connecting pin 6 and the left lever connecting rod 7. The right end of the lever 5 is connected to the right crankshaft 25 via the right lever connecting pin 24 and the right lever connecting rod.

[0033] The left movable valve push rod 13 is provided with an exhaust hole. The left movable valve push rod 13 is assembled and connected to the left movable valve sleeve 14 and is located above the left cylinder 12. The left movable valve sleeve 14 is provided with an exhaust port and is mounted on the upper engine body 2. The left exhaust valve plate 16 is provided with an exhaust hole and is mounted on the left movable valve sleeve 14. A left sealing gasket 15 is provided between the left exhaust valve plate 16 and the left movable valve sleeve 14. The left sealing gasket 15 is connected to the left movable valve push rod 13. The left exhaust cover 17 is provided with a left exhaust port. The left exhaust cover 17 is mounted on the left exhaust valve plate 16. The left movable valve push rod 13 passes through the left movable valve sleeve 14, the left sealing gasket 15, the left exhaust valve plate 16, and the left exhaust cover 17, and contacts the left camshaft 19 with a cam. The left camshaft 19 with a cam is mounted on the camshaft seat inside the left exhaust cover 17. The left camshaft cover 20 is mounted on the left exhaust cover 17. The left camshaft cover 20, the left camshaft seat 19 with a cam, the left exhaust cover 17, the left exhaust valve plate 16, and the left movable valve sleeve 14 are fastened together with screws through the screw hole 40.

[0034] The right movable valve push rod 31 is provided with an exhaust hole. The right movable valve push rod 31 is assembled and connected to the right movable valve sleeve 32 and is located above the right cylinder 28. The right movable valve sleeve 32 is provided with an exhaust port and is mounted on the upper engine body 2. The right exhaust valve plate 34 is provided with an exhaust hole and is mounted on the right movable valve sleeve 32. A right sealing gasket 33 is provided between the right exhaust valve plate 34 and the right movable valve sleeve 32. The right sealing gasket 33 is connected to the right movable valve push rod 31. The right exhaust cover 35 is provided with a right exhaust port. The right exhaust cover 35 is mounted on the right exhaust valve plate 34. The right movable valve push rod 31 passes through the right movable valve sleeve 32, the right sealing gasket 33, the right exhaust valve plate 34, and the right exhaust cover 35, and contacts the right camshaft 37 with a cam. The right camshaft 37 with a cam is mounted on the camshaft seat inside the right exhaust cover 35. The right camshaft cover 38 is mounted on the right exhaust cover 35. The right camshaft cover 38, the right camshaft 37 with a cam, the right exhaust cover 35, the right exhaust valve plate 34, and the right movable valve sleeve 31 are fastened together with screws through the screw hole 40.

[0035] The left crankshaft 8 and the right crankshaft 25 are each equipped with a first synchronous pulley 69, and the left camshaft 19 with a cam and the right camshaft 37 with a cam are each equipped with a second synchronous pulley 70. The first synchronous pulley 69 is connected to the second synchronous pulley 70 through a synchronous belt 71.

[0036] In this embodiment, the upper body 2 and the lower body 3 are fastened together as a whole by screws through screw holes 40.

[0037] In this embodiment, a gas storage tank 55, a left air inlet pipe 56, a left one-way valve 58, a left exhaust pipe 59, a right air inlet pipe 65, a right one-way valve 67, a right exhaust pipe 68, a left generator 74, and a right generator 75 are also provided. The gas storage tank 55 is equipped with a drain valve 60, a left air inlet 61, a left exhaust outlet 62, a right exhaust outlet 63, a right air inlet 64, a pressure limiting valve 72, and an electric air pump 73. The left air inlet 41 of the left cylinder buffer gas storage chamber 4 is connected to the left exhaust outlet of the gas storage tank through the left air inlet pipe 56. The right cylinder buffer storage chamber 39 is connected to the right air inlet 42 via the right air inlet pipe 65 and the right exhaust port 63 of the storage tank. The left exhaust port 18 on the left exhaust cover 17 is connected to the left air inlet 61 of the storage tank via the left exhaust pipe 59 with a left one-way valve 58. The right exhaust port 36 on the right exhaust cover 35 is connected to the right air inlet 64 of the storage tank via the right exhaust pipe 68 with a right one-way valve 67. The left generator 74 is connected to the left crankshaft 8, and the right generator 75 is connected to the right crankshaft 25.

[0038] In this embodiment, a starting device is also provided, which includes an electric motor and a toothed flywheel 76 disposed on the left crankshaft 8 and the right crankshaft 25. One of the toothed flywheels 76 disposed on the left crankshaft 8 and the right crankshaft 25 meshes with a gear on the output shaft of the electric motor.

[0039] In this embodiment, the upper body 2 is provided with a left air pump connecting rod 43, a left air pump piston 44, a left air pump cylinder 45, a left air pump valve plate 46, and a left air pump cylinder cover 47. The left air pump piston 44 is fitted with the left air pump cylinder 45. The left air pump connecting rod 43 is connected to the left crankshaft 8 and the left air pump piston 44 respectively. The left air pump valve plate 46 is installed on the left air pump cylinder 45. The left air pump cylinder cover 47 is installed on the left air pump valve plate 46. The left air pump cylinder cover 47 is provided with a left air pump exhaust port 48 and a left air pump inlet 57. The left air pump cylinder cover 47, the left air pump valve plate 46, and the left air pump cylinder 45 are fastened together with screws through screw holes 40. The left air pump exhaust port 48 on the left air pump cylinder cover 47 is connected to the left inlet 61 of the air tank through a left exhaust pipe 59 provided with a left one-way valve 58.

[0040] In this embodiment, the upper body 2 is provided with a right air pump connecting rod 49, a right air pump cylinder 50, a right air pump piston 51, a right air pump valve plate 52, and a right air pump cylinder cover 53; the right air pump piston 51 is fitted with the right air pump cylinder 50, the right air pump connecting rod 49 is connected to the right crankshaft 25 and the right air pump piston 51 respectively, the right air pump valve plate 52 is installed on the right air pump cylinder 50, the right air pump cylinder cover 53 is installed on the right air pump valve plate 52, the right air pump cylinder cover 53 is provided with a right air pump exhaust port 54 and a right air pump inlet 66, the right air pump cylinder cover 53, the right air pump valve plate 52, and the right air pump cylinder 50 are fastened together with screws through screw holes 40; the right air pump exhaust port 54 on the right air pump cylinder cover 53 is connected to the right inlet 64 of the air tank through a right exhaust pipe 68 provided with a right one-way valve 67.

[0041] The compressed air pump cylinder on the dual-crankshaft compressed air engine is mainly used to replenish the compressed air energy lost during engine operation. The replenishment of the lost air source on the engine can also be replaced by an electric air pump.

[0042] Working process: During the operation and power generation process of the dual-crankshaft compressed air engine, compressed air is pumped into the air tank 55 by the electric air pump 73, filling it to a pressure of 0.7 or 1.0 MPa as the starting air source. The compressed air in the air tank 55 enters the left cylinder buffer air storage chamber 4 through the left intake pipe 56 and the right cylinder buffer air storage chamber 39 through the right intake pipe 65. The gear drive of the electric motor output shaft drives the geared flywheel 76, and at the same time, the first synchronous pulley 69 drives the second synchronous pulley 70 to rotate through the synchronous belt 71. When the left cam with cam... When the lowest point of the camshaft 19 leaves the movable left valve pushrod 13, the left valve pushrod 13 closes the exhaust port. The high-pressure air in the left cylinder buffer reservoir 4 explodes into the left cylinder 12, driving the left piston 11. The left piston 11 drives the left crankshaft 8 to rotate through the left connecting rod, which in turn drives the left lever connecting rod 7 and the left end of the lever 5 to push downward (while the highest point of the cam of the right camshaft 37 with the cam earlier contacts the right movable valve pushrod 31 to close the intake port of the right cylinder 28 and open the exhaust port). At this time, the right end of the lever 5 is connected to the right lever connecting rod. The right crankshaft 25 rotates, pushing the right piston 30 upwards and compressing the exhaust gas from the right cylinder 28 into the air reservoir 55 through the right exhaust pipe 68. When the lowest point of the cam on the right camshaft 37 with a camshaft cam moves away from the right movable valve pushrod 31, the right movable valve pushrod 31 closes the exhaust port. The high-pressure air in the right cylinder buffer air reservoir 39 explodes into the right cylinder 28, driving the right piston 30. The right piston 30, through the right connecting rod 27, drives the right crankshaft 25 to rotate and drives the right lever connecting rod and the right end of the lever 5 downwards (while the camshaft 25 with a camshaft cam...). When the highest point of the cam on the left camshaft 19 contacts the left movable valve pushrod 13 in advance, it closes the intake port of the left cylinder 12 and opens the exhaust port. At this time, the left end of the lever 5 drives the left crankshaft 8 to rotate through the left lever connecting rod 7, pushing the left piston 11 to move upward and compress the exhaust of the left cylinder 12 into the air tank 55 through the left exhaust pipe 59. Meanwhile, as the crankshaft rotates, the air pump drives the left air pump piston 44 and the right air pump piston 51 through the left air pump connecting rod 43 and the right air pump connecting rod 49 to draw in and compress air, which then enters the air tank 55 through the left exhaust pipe 59 and the right exhaust pipe 68.

[0043] This invention utilizes a cylinder buffer storage chamber and employs a cam and movable valve pushrod to control the intake and exhaust of air in the air engine cylinders, driving the piston to perform work. A crankshaft is connected by levers and connecting rods. Because the pistons of the left and right cylinders of the engine work sequentially, pushing the pistons upwards, the exhaust gas in the cylinders is compressed and recycled into the storage tank. This ensures stable operation of the compressed air-driven air engine piston, crankshaft, and levers. It boasts advantages such as high explosive power, high torque, low construction and power generation costs, stable power generation, high power generation efficiency, low energy consumption, and environmental friendliness. It can be widely applied in various industries including transportation, automobiles, ships, electric air generator sets, and compressed air power station generator sets.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-crankshaft compressed air engine, characterized in that: The machine includes an upper body and a lower body. The upper body is provided with a left cylinder buffer storage chamber, a lever, a left lever connecting rod pin, a left lever connecting rod, a left crankshaft, a left crankshaft seat, a left connecting rod, a left piston pin, a left piston, a left cylinder, a left movable valve pushrod, a left movable valve sleeve, a left gasket, a left exhaust valve plate, a left exhaust cover, a left exhaust port, a left camshaft with a cam, a left camshaft cover, a lever seat, a lever shaft, a bearing, a right lever connecting rod pin, a right lever connecting rod, a right crankshaft, a right crankshaft seat, a right connecting rod, a right cylinder, a right piston pin, a right piston, a right movable valve pushrod, a right movable valve sleeve, a right gasket, a right exhaust valve plate, a right exhaust cover, a right exhaust port, a right camshaft with a cam, a right camshaft cover, and a right cylinder buffer storage chamber. The left cylinder buffer storage chamber is provided with a left air inlet. The left cylinder is connected to the left cylinder buffer storage chamber. The left piston is fitted with the left cylinder and is connected to the left crankshaft through the left piston pin and the left connecting rod. The left crankshaft is mounted on the upper body through the left crankshaft seat. The right cylinder buffer storage chamber is provided with a right air inlet. The right cylinder is connected to the right cylinder buffer storage chamber. The right piston is fitted with the right cylinder and is connected to the right crankshaft through the right piston pin and the right connecting rod. The right crankshaft is mounted on the upper body through the right crankshaft seat. The lever is mounted on the lever seat via a lever shaft and bearings. The left end of the lever is connected to the left crankshaft via a left lever connecting pin and a left lever connecting rod. The right end of the lever is connected to the right crankshaft via a right lever connecting pin and a right lever connecting rod. The left movable valve pushrod has an exhaust port, the left movable valve pushrod is fitted and connected to the left movable valve sleeve and is located above the left cylinder, the left movable valve sleeve has an exhaust port, the left movable valve sleeve is mounted on the upper engine block, the left exhaust valve plate has an exhaust port, the left exhaust valve plate is mounted on the left movable valve sleeve, a left sealing gasket is provided between the left exhaust valve plate and the left movable valve sleeve, the left sealing gasket is connected to the left movable valve pushrod, the left exhaust cover has a left exhaust port, the left exhaust cover is mounted on the left exhaust valve plate, the left movable valve pushrod passes through the left movable valve sleeve, the left sealing gasket, the left exhaust valve plate, and the left exhaust cover, and contacts the left camshaft with a cam, the left camshaft with a cam is mounted on the camshaft seat inside the left exhaust cover, the left camshaft cover is mounted on the left exhaust cover, and the left camshaft cover, the left camshaft with a cam, the left exhaust cover, the left exhaust valve plate, and the left movable valve sleeve are fastened together with screws through screw holes; The right movable valve pushrod has an exhaust port, the right movable valve pushrod is fitted and connected to the right movable valve sleeve and is located above the right cylinder, the right movable valve sleeve has an exhaust port, the right movable valve sleeve is mounted on the upper engine block, the right exhaust valve plate has an exhaust port, the right exhaust valve plate is mounted on the right movable valve sleeve, a right sealing gasket is provided between the right exhaust valve plate and the right movable valve sleeve, the right sealing gasket is connected to the right movable valve pushrod, the right exhaust cover has a right exhaust port, the right exhaust cover is mounted on the right exhaust valve plate, the right movable valve pushrod passes through the right movable valve sleeve, the right sealing gasket, the right exhaust valve plate, and the right exhaust cover, and contacts the right camshaft with a cam, the right camshaft with a cam is mounted on the camshaft seat inside the right exhaust cover, the right camshaft cover is mounted on the right exhaust cover, and the right camshaft cover, the right camshaft with a cam, the right exhaust cover, the right exhaust valve plate, and the right movable valve sleeve are fastened together with screws through screw holes; The left crankshaft and the right crankshaft are each equipped with a first synchronous pulley, and the left camshaft with a cam and the right camshaft with a cam are each equipped with a second synchronous pulley. The first synchronous pulleys are connected to the second synchronous pulleys via a synchronous belt. Working process: During the operation and power generation process of the dual-crankshaft compressed air engine, compressed air is pumped into the air tank by an electric air pump, filling it to a pressure of 0.7 or 1.0 MPa as the starting air source. The compressed air in the air tank enters the left cylinder buffer air storage chamber through the left intake pipe and the right cylinder buffer air storage chamber through the right intake pipe. The gear drive of the electric motor output shaft drives the geared flywheel, and at the same time, the first synchronous pulley drives the second synchronous pulley to rotate through the synchronous belt. When the lowest point of the cam of the left camshaft with cams leaves the left movable valve push rod, the left movable valve push rod closes the exhaust port. The high-pressure air in the left cylinder buffer air storage chamber explodes into the left cylinder, driving the left piston. The left piston drives the left crankshaft to rotate through the left connecting rod, which in turn drives the left lever and the left end of the lever to push downwards. Meanwhile, the highest point of the cam of the right camshaft with cams reaches the upper limit in advance. When the right valve lifter is engaged, it closes the intake port of the right cylinder and opens the exhaust port. At this time, the right end of the lever drives the right crankshaft to rotate via the right lever connecting rod, pushing the right piston upward and compressing the exhaust gas from the right cylinder into the air tank through the right exhaust pipe. When the lowest point of the cam on the right camshaft with a camshaft leaves the right valve lifter, the right valve lifter closes the exhaust port. The high-pressure air in the buffer air tank of the right cylinder explodes into the right cylinder, driving the right piston. The right piston drives the right crankshaft to rotate via the right connecting rod, which in turn drives the right lever connecting rod and the right end of the lever downward. Meanwhile, the highest point of the cam on the left camshaft with a camshaft engages the left valve lifter in advance, closing the intake port of the left cylinder and opening the exhaust port. At this time, the left end of the lever drives the left crankshaft to rotate via the left lever connecting rod, pushing the left piston upward and compressing the exhaust gas from the left cylinder into the air tank through the left exhaust pipe.

2. The dual-crankshaft compressed air engine according to claim 1, characterized in that: The upper and lower bodies are fastened together as a whole by screws through screw holes.

3. The dual-crankshaft compressed air engine according to claim 1 or 2, characterized in that: It also includes an air tank, a left intake pipe, a left one-way valve, a left exhaust pipe, a right intake pipe, a right one-way valve, a right exhaust pipe, a left generator, and a right generator. The air tank is equipped with a drain valve, a left air inlet, a left air outlet, a right air outlet, a right air inlet, a pressure relief valve, and an electric air pump. The left air inlet of the left cylinder buffer air storage chamber is connected to the left exhaust outlet of the air tank through the left intake pipe. The right air inlet of the right cylinder buffer air storage chamber is connected to the right exhaust outlet of the air tank through the right intake pipe. The left exhaust outlet on the left exhaust cover is connected to the left air inlet of the air tank through the left exhaust pipe equipped with a left one-way valve. The right exhaust outlet on the right exhaust cover is connected to the right air inlet of the air tank through the right exhaust pipe equipped with a right one-way valve. The left generator is connected to the left crankshaft, and the right generator is connected to the right crankshaft.

4. The dual-crankshaft compressed air engine according to claim 3, characterized in that: It also includes a starting device, which includes an electric motor and toothed flywheels on the left and right crankshafts, one of which meshes with a gear on the output shaft of the electric motor.

5. The dual-crankshaft compressed air engine according to claim 3, characterized in that: The upper body is equipped with a left air pump connecting rod, a left air pump piston, a left air pump cylinder, a left air pump valve plate, and a left air pump cylinder cover. The left air pump piston is fitted into the left air pump cylinder. The left air pump connecting rod is connected to the left crankshaft and the left air pump piston respectively. The left air pump valve plate is installed on the left air pump cylinder. The left air pump cylinder cover is installed on the left air pump valve plate. The left air pump cylinder cover has a left air pump exhaust port and a left air pump inlet. The left air pump cylinder cover, the left air pump valve plate, and the left air pump cylinder are fastened together with screws through screw holes. The left air pump exhaust port on the left air pump cylinder cover is connected to the left inlet of the air tank through a left exhaust pipe equipped with a left one-way valve.

6. The dual-crankshaft compressed air engine according to claim 3, characterized in that: The upper body is equipped with a right air pump connecting rod, a right air pump cylinder, a right air pump piston, a right air pump valve plate, and a right air pump cylinder cover. The right air pump piston is fitted into the right air pump cylinder. The right air pump connecting rod is connected to the right crankshaft and the right air pump piston respectively. The right air pump valve plate is installed on the right air pump cylinder. The right air pump cylinder cover is installed on the right air pump valve plate. The right air pump cylinder cover is provided with a right air pump exhaust port and a right air pump inlet. The right air pump cylinder cover, the right air pump valve plate, and the right air pump cylinder are fastened together with screws through screw holes. The right air pump exhaust port on the right air pump cylinder cover is connected to the right inlet of the air tank through a right exhaust pipe equipped with a right one-way valve.

7. The dual-crankshaft compressed air engine according to claim 1 or 2, characterized in that: The left crankshaft, left cylinder, left piston, left connecting rod, left lever, and lever of the dual-crankshaft compressed air engine correspond to the right crankshaft, right cylinder, right piston, right connecting rod, and right lever as a group, but the design of the dual-crankshaft compressed air engine is not limited to one group.

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