Novel four-cylinder engine

Abstract

The utility model discloses a novel four-cylinder engine, which belongs to the technical field of engines and comprises a positioning block, an output shaft and four cylinder chambers, one end of the positioning block is connected with a first telescopic pry bar, the other end of the positioning block is connected with a second telescopic pry bar, and two ends of the first telescopic pry bar are respectively connected with a piston connecting rod. The two ends of the second telescopic pinch bar are each connected with a piston connecting rod, pistons are arranged at the ends of the piston connecting rods, and the pistons are installed in the corresponding air cylinder chambers respectively. The output shaft vertically penetrates through the positioning block, linkage gears are arranged at the two ends of the output shaft, rod teeth are distributed on the side, close to the output shaft, of the piston connecting rod, and the rod teeth are meshed with the linkage gears. According to the utility model, by virtue of the cooperation of the linkage mechanism, the working stroke can be adjusted in a stepless manner by changing the ignition time of the spark plug, so that the combustion chamber is in a more reasonable working volume.

Description

Technical Field

[0001] The utility model belongs to the technical field of engines, in particular to a novel four-cylinder engine. Background Art

[0002] The compression ratio is an important technical parameter of an engine. The traditional crankshaft rotation cannot adjust the compression ratio. With the continuous development of automobile technology, automobiles require a lower compression ratio at high loads, and a high compression ratio at low loads. By dynamically adjusting the engine compression ratio, the engine's fuel economy can be improved and losses can be reduced.

[0003] However, due to the current immature technology and high costs, variable compression ratio engines have not been put into mass production. The current compression ratio adjustment mechanism is complicated and cumbersome, and the adjustment is not smooth enough, so it is easy to cause some malfunction problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a novel four-cylinder engine to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] A novel four-cylinder engine comprises a positioning block, an output shaft and four cylinder chambers, wherein one end of the positioning block is connected to a first telescopic pry rod and the other end is connected to a second telescopic pry rod, both ends of the first telescopic pry rod are respectively connected to a piston connecting rod, and both ends of the second telescopic pry rod are respectively connected to a piston connecting rod, and pistons are arranged at the ends of the piston connecting rods, and the pistons are respectively installed in the corresponding cylinder chambers;

[0006] The output shaft vertically penetrates the positioning block, and linkage gears are arranged at both ends of the output shaft. Rod teeth are arranged on the side of the piston connecting rod close to the output shaft, and the rod teeth are meshed with the linkage gears.

[0007] Furthermore, the output shafts are an even number, and the linkage gears on adjacent output shafts are meshed with each other.

[0008] Furthermore, it also includes a cylinder head connecting plate and an oil pan plate, the four cylinder chambers are arranged between the cylinder head connecting plate and the oil pan plate, the cylinder head connecting plate is provided with four holes, one hole corresponds to one cylinder chamber, one end of the cylinder chamber is connected to the corresponding hole on the cylinder head connecting plate, and the other end is connected to the oil pan plate, and the piston connecting rod passes through the oil pan plate and extends out.

[0009] Furthermore, two symmetrically arranged support plates are provided on a side of the oil pan plate away from the cylinder head connecting plate, and the positioning block is fixed between the two support plates.

[0010] Furthermore, a heat sink is provided between the cylinder head connecting plate and the oil pan plate, and the heat sink wraps the cylinder chamber.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This solution forms a new type of engine working form through the linkage of gears, telescopic pry bars and other mechanisms. The structure is simple and compact. Each cylinder of this solution has 4 strokes (compression, power, exhaust, and intake). The spark plugs of different cylinders are ignited in turn, and other cylinders will complete their strokes by themselves under the drive of the linkage system. The strokes of different cylinders at the same time are different. By controlling the moment of spark plug ignition and coordinating the linkage system for smooth adjustment, the engine can run at different compression ratios, and the power stroke can be adjusted steplessly to allow the combustion chamber to be at a more reasonable working volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the cooperation between the piston and various linkage mechanisms in the utility model.

[0019] In the figure: 1. cylinder head connecting plate; 201. first cylinder chamber; 2011. first piston connecting rod; 202. second cylinder chamber; 2021. second piston connecting rod; 203. third cylinder chamber; 2031. third piston connecting rod; 204. fourth cylinder chamber; 2041. fourth piston connecting rod; 205. piston; 206. rod teeth; 301. first output shaft; 3011. first linkage gear; 3012. second linkage gear; 302. second output shaft; 3021. third linkage gear; 3022. fourth linkage gear; 4. oil pan plate; 4011. first support plate; 4012. second support plate; 4021. first telescopic pry bar; 4022. second telescopic pry bar; 403. positioning block; 5. heat sink. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 As shown, in the embodiment of the utility model, a novel four-cylinder engine includes a cylinder head connecting plate 1, an oil pan plate 4, a first cylinder chamber 201, a second cylinder chamber 202, a third cylinder chamber 203, and a fourth cylinder chamber 204 are arranged between the cylinder head connecting plate 1 and the oil pan plate 4, one end of the first cylinder chamber 201, the second cylinder chamber 202, the third cylinder chamber 203, and the fourth cylinder chamber 204 are sealed and connected to the cylinder head connecting plate 1, and the other end is sealed and connected to the oil pan plate 4, and the cylinder head The connecting plate 1 is provided with through holes respectively connected to the first cylinder chamber 201, the second cylinder chamber 202, the third cylinder chamber 203 and the fourth cylinder chamber 204. The oil pan plate 4 is provided with through holes respectively connected to the first cylinder chamber 201, the second cylinder chamber 202, the third cylinder chamber 203 and the fourth cylinder chamber 204. The cylinder head connecting plate 1 is sealedly connected to the cylinder head structure (not shown in the figure), which is very convenient when the cylinder needs to be inspected and repaired, and only the cylinder head needs to be disassembled.

[0023] A heat sink 5 is provided between the cylinder head connecting plate 1 and the oil pan plate 4 , and the heat sink 5 wraps around the four cylinder chambers, thereby fully dissipating the heat of the cylinder chambers.

[0024] In one embodiment, see Figure 1 As shown, the first support plate 4011 and the second support plate 4012 are symmetrically arranged on one side of the oil pan plate 4 away from the cylinder head connecting plate 1, one end of the positioning block 403 passes through the center of the first telescopic pry bar 4021 and is fixedly connected to the first support plate 4011, and the other end passes through the center of the second telescopic pry bar 4022 and is fixedly connected to the second support plate 4012. The first telescopic pry bar 4021 and the second telescopic pry bar 4022 can rotate around the positioning block 403.

[0025] In one embodiment, see Figure 1 , Figure 5 As shown, one end of the first telescopic lever 4021 is connected to the first piston connecting rod 2011, and the other end is connected to the fourth piston connecting rod 2041. A piston 205 is arranged at the end of the first piston connecting rod 2011, and the piston 205 passes through the hole on the oil pan plate 4 and is assembled in the first cylinder chamber 201. A piston 205 is arranged at the end of the fourth piston connecting rod 2041, and the piston 205 passes through the hole on the oil pan plate 4 and is assembled in the fourth cylinder chamber 204. One end of the second telescopic lever 4022 is connected to the third piston connecting rod 2031, and the other end is connected to the second piston connecting rod 2021. A piston 205 is arranged at the end of the third piston connecting rod 2031, and the piston 205 passes through the hole on the oil pan plate 4 and is assembled in the third cylinder chamber 203. A piston 205 is arranged at the end of the second piston connecting rod 2021, and the piston 205 passes through the hole on the oil pan plate 4 and is assembled in the second cylinder chamber 202. When the first piston connecting rod 2011 moves in one direction, it will pull the first telescopic pry rod 4021 to rotate around the positioning block 403, and the fourth piston connecting rod 2041 will move in the opposite direction driven by the first telescopic pry rod 4021. When the second piston connecting rod 2021 moves in one direction, it will pull the second telescopic pry rod 4022 to rotate around the positioning block 403, and the third piston connecting rod 2031 will move in the opposite direction driven by the second telescopic pry rod 4022. The movement of the piston connecting rod will drive the connected piston 205 to move in the corresponding cylinder chamber.

[0026] In one embodiment, see Figure 1 , Figure 5 As shown, the positioning block 403 is also provided with a first output shaft 301 and a second output shaft 302 arranged in parallel. The first output shaft 301 and the second output shaft 302 vertically pass through the middle of the positioning block 403. One end of the first output shaft 301 is provided with a first linkage gear 3011, and the other end is provided with a second linkage gear 3012. One end of the second output shaft 302 is provided with a third linkage gear 3021, and the other end is provided with a fourth linkage gear 3022.

[0027] The four piston connecting rods are all provided with rod teeth 206. The rod teeth 206 on the first piston connecting rod 2011 mesh with the first linkage gear 3011, the first linkage gear 3011 meshes with the third linkage gear 3021, and the second linkage gear 3012 meshes with the rod teeth 206 on the second piston connecting rod 2021. When the first piston connecting rod 2011 moves in one direction, the first linkage gear 3011 is driven by the rod teeth 206, and the second piston connecting rod 2021 is driven to move in the same direction by the third linkage gear 3021 meshed with the first linkage gear 3011.

[0028] The rod teeth 206 on the third piston connecting rod 2031 are meshed with the fourth linkage gear 3022, the fourth linkage gear 3022 is meshed with the second linkage gear 3012, the second linkage gear 3012 is meshed with the rod teeth 206 on the fourth piston connecting rod 2041. When the third piston connecting rod 2031 moves in one direction, the fourth linkage gear 3022 is driven by the rod teeth 206, and the fourth piston connecting rod 2041 is driven to move in the same direction by the second linkage gear 3012 meshed with the fourth linkage gear 3022. The movement of the piston connecting rod will drive the connected piston 205 to move in the corresponding cylinder chamber.

[0029] It should be noted that this solution forms a smooth linkage system through the mutual cooperation of various linkage mechanisms, thereby forming a new type of engine working form. Specifically, when the first piston connecting rod 2011 moves in one direction, it will drive the second piston connecting rod 2021 to move in the same direction. When the second piston connecting rod 2021 moves, it will drive the third piston connecting rod 2031 to move in the opposite direction of the second piston connecting rod 2021. When the third piston connecting rod 2031 moves, it will drive the fourth piston connecting rod 2041 to move in the same direction as the third piston connecting rod 2031. When the fourth piston connecting rod 2041 moves, it will drive the first piston connecting rod 2011 to move in the opposite direction of the fourth piston connecting rod 2041. Through the cooperation of various linkage mechanisms, the movement of the piston 205 in any cylinder chamber will drive the pistons 205 in the other three cylinder chambers to move.

[0030] Each cylinder has 4 strokes (compression, power, exhaust, and intake). Each cylinder is ignited in turn. Through the cooperation of various linkage mechanisms and the control of valve intake and exhaust, each cylinder can smoothly complete the 4 strokes. By controlling the ignition timing of the spark plug, the engine can operate under different compression ratios. If a high compression ratio is required, the ignition will be slowed down, and if a low compression ratio is required, the ignition will be early. The cylinder power stroke can be adjusted according to demand, and through the cooperation of various linkage mechanisms, the power stroke of other cylinders can be smoothly adjusted to allow the combustion chamber to be at a more reasonable working volume.

[0031] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A new four-cylinder engine, characterized in that: It includes a positioning block, an output shaft and four cylinder chambers, one end of the positioning block is connected to a first telescopic pry rod, and the other end is connected to a second telescopic pry rod, both ends of the first telescopic pry rod are respectively connected to a piston connecting rod, and both ends of the second telescopic pry rod are respectively connected to a piston connecting rod, and pistons are arranged at the ends of the piston connecting rods, and the pistons are respectively installed in the corresponding cylinder chambers; The output shaft vertically penetrates the positioning block, and linkage gears are arranged at both ends of the output shaft. Rod teeth are arranged on the side of the piston connecting rod close to the output shaft, and the rod teeth are meshed with the linkage gears.

2. A novel four-cylinder engine according to claim 1, characterized in that: The output shafts are in an even number, and the linkage gears on adjacent output shafts mesh with each other.

3. A novel four-cylinder engine according to claim 1, characterized in that: It also includes a cylinder head connecting plate and an oil pan plate, the four cylinder chambers are arranged between the cylinder head connecting plate and the oil pan plate, the cylinder head connecting plate is provided with four holes, one hole corresponds to one cylinder chamber, one end of the cylinder chamber is connected to the corresponding hole on the cylinder head connecting plate, and the other end is connected to the oil pan plate, and the piston connecting rod passes through the oil pan plate and extends out.

4. A novel four-cylinder engine according to claim 3, characterized in that: Two symmetrically arranged support plates are provided on one side of the oil pan plate away from the cylinder head connecting plate, and the positioning block is fixed between the two support plates.

5. A novel four-cylinder engine according to claim 3 or 4, characterized in that: A heat sink is provided between the cylinder head connecting plate and the oil pan plate, and the heat sink wraps the cylinder chamber.

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