Engine

Abstract

The invention relates to an engine, which belongs to the technical field of power devices, and comprises an engine body assembly, which comprises a left engine body, a middle engine body and a right engine body which are connected in sequence, a cylinder barrel is embedded in the left engine body and the right engine body, and a cylinder cover is hermetically assembled at the end of the cylinder barrel; the hole shaft piston assembly is installed in the machine body assembly, and an air inlet piston is in sliding sealing fit with the cylinder barrel; the lubricating assembly is integrated on the machine body assembly and provides a lubricating effect for the cylinder barrel and the hole shaft piston assembly; the air distribution assembly comprises a slope square shaft linked with a hole shaft body of the middle machine body and a rocker arm in driving fit with an air valve, and the exhaust stroke and the air suction stroke are completed while the compression stroke and the work stroke of the hole shaft piston assembly are completed. The opposed hole shaft type two-stroke engine provided by the invention has the characteristics of small size, light weight, small vibration, low noise, few parts and the like.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power devices, and particularly relates to an engine, in particular to a two-stroke opposed hole shaft engine. BACKGROUND

[0002] At present, the piston is actively connected with the connecting rod in the structural composition of the engine, and the connecting rod swings under the driving of the crankshaft to transmit the force from the piston to the crankshaft. However, the structure leads to large vibration and noise, and the structure of the engine is relatively complex, the volume and weight are relatively large, and thus the working efficiency and energy consumption are affected. SUMMARY

[0003] In view of the defects in the prior art, the application provides an engine.

[0004] An engine comprises:

[0005] A body assembly comprises a left body, a middle body and a right body connected in sequence, the left body and the right body are embedded with a cylinder barrel, and the cylinder barrel is sealingly assembled with a cylinder cover at the end;

[0006] A hole shaft piston assembly is arranged in the body assembly, and an intake piston is sealingly matched with the cylinder barrel in sliding mode;

[0007] A lubricating assembly is integrated in the body assembly, and provides lubricating action to the cylinder barrel and the hole shaft piston assembly;

[0008] A valve assembly comprises a bevel square shaft linked with a hole shaft body of the middle body and a rocker arm matched with a valve drive, and the exhaust and intake strokes are completed at the same time as the compression and working strokes of the hole shaft piston assembly.

[0009] The hole shaft piston assembly comprises a hole shaft body and shafts at both ends of the hole shaft body, the shafts are connected with the intake assembly at the end and are connected with the intake piston; the hole shaft body is a single long hole double shaft structure, a long hole is arranged in the middle part, and the shafts are symmetrically arranged on both sides of the hole shaft body; the axis of the shaft is perpendicular to the long hole or is at an adjustable inclined angle.

[0010] The intake piston is a combined type, a main piston body is provided with a cylinder combustion chamber and a moving clamping groove, a lower piston body is provided with a moving clamping platform matched with the moving clamping groove, and the sealing contact surfaces of the main piston body and the lower piston body are switched to be attached or separated with the stroke to form an intake passage.

[0011] The intake assembly comprises upper and lower end covers and a ribbed shaft hole column body, a shaft hole is arranged in the middle part; the upper end cover is provided with an intake hole, the intake hole is covered with an intake diaphragm provided with an intake film tongue, and the lower end cover is closed.

[0012] The middle body is provided with a power output piece mounting hole for mounting a crankshaft or a Z-shaped shaft, and the middle body is provided with an embedded hole for assembling the hole shaft piston assembly.

[0013] The lubrication assembly includes a lubricating plunger shaft, which is linked to the bore shaft body via a fixed small shaft and reciprocates in the plunger shaft cavity; the lubricating fluid is transported to the mating surface of the cylinder and the intake piston through the oil passage and the cylinder oil inlet hole, and a sealing groove is provided at the opening of the cylinder oil inlet hole.

[0014] When the piston assembly moves upward, air enters the lower chamber of the piston; when it moves downward, the air intake passage is opened; and when it moves upward again, the sealing surfaces come together to complete compression.

[0015] The engine is a two-stroke opposed structure, with the piston strokes on both sides of the bore and shaft piston assembly moving in opposite directions synchronously to counteract the reciprocating inertial force.

[0016] The valve train assembly includes a rocker arm seat mounted on the cylinder head of the left and right engine blocks, and a rocker arm rotatably connected to the rocker arm seat via a rocker arm fixing shaft. One end of the inclined square shaft is mounted on the fixed shaft of the bore shaft body, and the other end is engaged with the inclined surface of the rocker arm. The rocker arm abuts against the valve spring.

[0017] The rocker arm base is equipped with a setting wheel to limit the trajectory of the inclined plane square axis, and the rocker arm is equipped with a moving wheel that rolls in cooperation with the inclined plane square axis.

[0018] By employing the above technical solution, the present invention has at least the following beneficial effects:

[0019] The engine provided by this invention is a single-bore, dual-shaft, opposed-piston two-stroke engine. The main operation of the engine is accomplished by a single-cylinder crankshaft or Z-shaft in conjunction with a single-bore, dual-shaft piston assembly. The piston assembly moves linearly, while the crankshaft or Z-shaft rotates. These two movements are organically combined, with the piston transmitting force to the crankshaft or Z-shaft without interference. Specifically, in the opposed-piston assembly, one piston moves downwards during the power stroke, while the other piston moves upwards during compression. This operation counteracts the inertial force generated by the reciprocating linear motion of the entire piston assembly. In contrast, a connecting rod four-stroke engine only counteracts the inertial force of the reciprocating motion during the power stroke; the other three strokes—intake, exhaust, and compression—all require overcoming the impact of this inertial force. Therefore, this invention reduces engine vibration and noise.

[0020] Meanwhile, the two-stroke engine with opposed bore shaft provided by this invention has the characteristics of small size, light weight, low vibration, low noise, and few parts. Attached Figure Description

[0021] Figure 1 A front view of the engine provided by the present invention;

[0022] Figure 2 A top view of the engine provided by the present invention;

[0023] Figure 3 This is a top view of the intake assembly in this invention;

[0024] Figure 4 This is a side view of the intake assembly in this invention;

[0025] Figure 5 This is a top view of the intake piston in this invention;

[0026] Figure 6 This is a side view of the intake piston in this invention;

[0027] Figure 7 This is a bottom view of the intake piston in this invention;

[0028] Figure 8 This is a side view of the lower piston body of the intake piston in this invention;

[0029] Figure 9 This is a top view of the lower piston body of the intake piston in this invention;

[0030] Figure 10 This is a bottom view of the lower piston body of the intake piston in this invention;

[0031] Figure 11 This is a side view of the hole shaft body in this invention;

[0032] Figure 12 This is a side view of the rocker arm mount in this invention;

[0033] Figure 13 This is a top view of the rocker arm and rocker arm base in this invention after they are connected.

[0034] Figure 14 This is a side view of the cylinder in this invention;

[0035] Figure 15 This is a top view of the cylinder in this invention;

[0036] Figure 16 This is a side view of the body in this invention;

[0037] in:

[0038] 1. Rocker arm fixed shaft; 2. Rocker arm moving wheel; 3. Rocker arm seat fixed wheel; 4. Rocker arm seat; 5. Rocker arm; 6. Valve linkage block; 7. Valve spring; 8. Angled square shaft; 9. Valve; 10. Right engine block; 11. Angled square shaft fixed shaft; 12. Intake piston; 13. Cylinder; 14. Shaft; 15. Hole shaft body; 16. Long hole; 17. Lubricating fluid pressure adjusting screw; 18. Lubricating fluid pressure adjusting plunger; 19. Plunger shaft cavity; 20. Mounting hole; 21. Lubricating fluid plunger shaft; 22. Intake assembly; 23. Middle engine block; 24. Lower piston chamber; 25. Lubricating fluid oil passage; 26. Left engine block; 27. Cylinder head; 28. Air intake port of the engine block; 29. ​​Piston fixing shaft fixing hole; 30. Shaft hole; 31. Intake diaphragm; 32. Intake diaphragm tongue; 33. Support rib; 34. Intake channel; 35. Shaft hole column connected to the rib; 36. Cylindrical combustion chamber; 37. Moving slot; 38. Sealing contact surface with the lower piston body; 39. Sealing contact surface with the piston; 40. Lower piston body; 41. Moving slot; 42. Fastening screw; 43. Screw hole; 44. Cylinder oil inlet; 45. Sealing groove; 46. Small fixing shaft of the plunger shaft; 47. Lubricating fluid assembly; 48. Embedded hole; 49. Upper piston chamber; 50. Inclined surface. Detailed Implementation

[0039] To better explain and facilitate understanding of the present invention, the technical solution and effects of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1-16 As shown, the engine provided by this invention includes a body, specifically comprising a left body 26, a middle body 23, and a right body 10 connected sequentially from left to right. A piston assembly consisting of a bore shaft 15, a shaft 14, and an intake piston 12 is mounted on the main body. Further, the left body 26 and the right body 10 include cylinder barrels 13, with cylinder heads 27 at their ends. A lubricating fluid assembly 47 is provided on the body for lubrication. Other components include a sloping square shaft 8 and a rocker arm 5 for valve train operation.

[0041] The bore shaft 15 has a single elongated bore and double shaft structure, with an elongated bore 16 in the middle. Shafts 14 are symmetrically arranged on both sides of the bore shaft 15, passing through the center of the intake assembly 22 and engaging with the shaft bore 30 of the intake assembly 22. The ends of the shafts connect to the intake piston 12, forming a bore-shaft-piston assembly. The elongated bore 16 of the bore shaft 15 is perpendicular to the shafts 14 on both sides and the intake piston 12, or at other different angles. The angle of the elongated bore 16 can be adjusted to improve working efficiency and combustion performance. The intake piston 12 runs within the cylinder 13 on the left engine block 26 and the right engine block 10. The rodless chamber is the upper piston chamber 49, and the rod chamber is the lower piston chamber 24. This assembly is the core moving component of the engine. Air intake ports 28 are respectively provided on the left engine block 26 and the right engine block 10 corresponding to the intake assembly 22. Furthermore, the lower part of the bore shaft body 15 is symmetrically provided with inclined square shaft fixing shafts 11, one end of the inclined square shaft 8 is installed on the inclined square shaft fixing shaft 11, and the other ends of the two inclined square shafts 8 pass through the cylinder heads 27 of the left engine body 26 and the right engine body 10 respectively.

[0042] The intake piston 12 is a combined piston, consisting of a main piston body and a lower piston body 40. The main piston body is cylindrical in shape, with a cylindrical combustion chamber 36 in the middle. One end of the main piston body has a movable slot 37 for connecting to the lower piston body 40, and the movable slot 37 is coaxially arranged with the cylindrical combustion chamber 36. The lower piston body 40 includes a movable mounting plate 41 that mates with the movable slot 37 of the main piston body. A fastening screw 42 is provided on the side of the movable mounting plate 41 away from the sealing contact surface 39 with the piston, for mates with the screw hole 43 of the shaft 14 to achieve connection with the shaft 14. When the intake piston 12 moves upward, air enters through the intake assembly 22 via the intake port 28 in the lower piston chamber 24. When the intake piston 12 moves downward, an intake passage is formed by the combined action of the moving slot 37 of the main piston body and the moving platform 41 of the lower piston body 40. Air enters the upper piston chamber 49 through the cylindrical combustion chamber 36 via the intake passage. When the intake piston 12 moves upward again, the sealing contact surface 39 of the lower piston body 40 and the sealing contact surface 38 of the main piston body and the lower piston body come into contact to form a seal, thereby completing the air compression stroke.

[0043] The intake assembly 22 consists of upper and lower intake end caps. The upper and lower intake end caps are connected by a shaft hole 35 connected to a rib. The shaft hole 30 is located in the middle of the upper intake end cap, the shaft hole 35 connected to the rib, and the lower intake end cap. Supporting ribs 33 are evenly distributed circumferentially between the upper and lower intake end caps. Furthermore, the upper intake end cap has an intake channel 34, and its upper surface is covered with an intake diaphragm 31. An intake diaphragm tongue 32 is provided on the intake diaphragm 31 for opening and closing the intake channel 34. The lower intake end cap is sealed.

[0044] The middle body 23 has a mounting hole 20 on one side for mounting a power output component crankshaft or Z-shaft. The crankshaft is a separate crankshaft, and the Z-shaft is an integral shaft. The middle body 23 has an insertion hole 48 for a bore shaft body 15 on its top and sides for mounting a bore shaft piston assembly.

[0045] The lubricating fluid assembly 47 includes a lubricating fluid plunger shaft 21, on which a vertically fixed small shaft 46 is provided. The fixed small shaft 46 is installed in a plunger fixing shaft fixing hole 29 on the shaft body 15, driving the lubricating fluid plunger shaft 21 to reciprocate within the plunger shaft cavity 19 of the lubricating fluid assembly 47. A lubricating fluid oil passage 25 is formed between the plunger shaft cavity 19 and the left engine block 26 and the right engine block 10, and a corresponding cylinder inlet hole 44 is provided on the cylinder barrel 13. Lubricating fluid pressure regulating plungers 18 are provided at both ends of the plunger shaft cavity 19, and lubricating fluid assembly 47 has lubricating fluid pressure adjusting screws 17 at both ends. The lubricating fluid, which is regulated by the lubricating fluid pressure regulating plungers 18 and the lubricating fluid pressure adjusting screws 17, enters the cylinder 13 through the lubricating fluid oil passage 25 and the cylinder oil inlet 44 on the cylinder 13 to provide lubrication for the intake piston 12 and the cylinder 13. The cylinder oil inlet 44 is sealed by a sealing groove 45 with a rubber ring.

[0046] The left engine block 26 and the right engine block 10 have rocker arm seats 4 and rocker arms 5 rotatably connected to the rocker arm seats 4 via rocker arm fixing shaft 1 on their cylinder heads 27. The other end of the inclined square shaft 8 contacts the movable end (front end) of the rocker arm 5 via the inclined surface 50. The upper end of the rocker arm 5 is provided with a valve linkage block 6, which cooperates with the valve spring 7 of the valve 9 opened on the cylinder head 27. When the bore shaft 15 drives the inclined square shaft 8 to move, the rocker arm seat fixed wheel 3 of the rocker arm seat 4 limits the movement trajectory of the inclined square shaft 8. The rocker arm fixing shaft 1 on the rocker arm seat 4 fixes the vertical angle of the rocker arm 5. The rocker arm moving wheel 2 of the rocker arm 5 swings under the action of the inclined surface 50 as the inclined square shaft 8 moves, causing the front end of the rocker arm 5 to press down, pushing the valve linkage block 6 to compress the valve spring 7 and thus opening the valve 9 to complete the exhaust process.

[0047] When one intake piston 12 completes the compression and power stroke, the other intake piston 12 completes the exhaust and intake stroke. This two-stroke engine design can counteract the reciprocating inertial force generated by the bore and shaft piston assembly, thereby improving mechanical efficiency.

Claims

1. An engine, characterized in that, include: The engine block assembly includes a left engine block, a middle engine block, and a right engine block connected in sequence. Cylinders are embedded in the left and right engine blocks, and cylinder heads are sealed and assembled at the ends of the cylinders. The intake piston assembly is installed in the engine block assembly, and the intake piston and cylinder are in sliding sealing fit. The lubrication assembly, integrated into the machine body assembly, provides lubrication to the cylinder and bore piston assembly; The valve train assembly, including the inclined square shaft that is linked to the bore shaft body of the engine block and the rocker arm that cooperates with the valve drive, completes the exhaust and intake strokes simultaneously with the compression and power strokes of the bore shaft piston assembly.

2. The engine according to claim 1, characterized in that: The bore-shaft piston assembly includes a bore-shaft body and shafts at both ends of the bore-shaft body. The ends of the shafts pass through the intake assembly and are connected to the intake piston. The bore-shaft body is a single-long-hole double-shaft structure with a long hole in the middle and symmetrically arranged on both sides of the bore-shaft body. The axis of the shaft is perpendicular to the long hole or at an adjustable tilt angle.

3. An engine according to claim 2, characterized in that: The intake piston is a combination type, wherein the main piston body is provided with a cylindrical combustion chamber and a movable slot, and the lower piston body is provided with a movable slot that cooperates with the movable slot; the sealing contact surfaces of the main piston body and the lower piston body switch to fit or separate as the stroke progresses, forming an intake passage.

4. An engine according to claim 2, characterized in that: The intake assembly includes upper and lower end covers and a column with a ribbed shaft hole, with a shaft hole in the middle; the upper end cover has an intake channel, and the intake channel is covered with an intake diaphragm with an intake diaphragm tongue, and the lower end cover is sealed.

5. An engine according to claim 1, characterized in that: The middle body is provided with a power output component mounting hole for mounting a crankshaft or Z-shaft; at the same time, the middle body is provided with an embedding hole for assembling a crankshaft piston assembly.

6. An engine according to claim 2, characterized in that: The lubrication assembly includes a lubricating plunger shaft, which is linked to the bore shaft body via a fixed small shaft and reciprocates in the plunger shaft cavity; the lubricating fluid is transported to the mating surface of the cylinder and the intake piston through the oil passage and the cylinder oil inlet hole, and a sealing groove is provided at the opening of the cylinder oil inlet hole.

7. An engine according to claim 1, characterized in that: When the piston assembly moves upward, air enters the lower chamber of the piston; when it moves downward, the air intake passage is opened; and when it moves upward again, the sealing surfaces come together to complete compression.

8. An engine according to claim 1, characterized in that: The engine is a two-stroke opposed structure, with the piston strokes on both sides of the bore and shaft piston assembly moving in opposite directions synchronously to counteract the reciprocating inertial force.

9. An engine according to claim 1, characterized in that: The valve train assembly includes a rocker arm seat mounted on the cylinder head of the left and right engine blocks, and a rocker arm rotatably connected to the rocker arm seat via a rocker arm fixing shaft. One end of the inclined square shaft is mounted on the fixed shaft of the bore shaft body, and the other end is engaged with the inclined surface of the rocker arm. The rocker arm abuts against the valve spring.

10. An engine according to claim 9, characterized in that: The rocker arm base is equipped with a setting wheel to limit the trajectory of the inclined plane square axis, and the rocker arm is equipped with a moving wheel that rolls in cooperation with the inclined plane square axis.

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