An internal combustion engine

By installing the spline shaft at the power output end of the crankshaft of the internal combustion engine and connecting it to the power input gear of the speed increaser, the gear box and multiple gear levels interlock each other, the problem of the existing internal combustion engine falling when increasing the output torque is solved, and the balance between high torque and high speed is achieved.

CN119737225AInactive Publication Date: 2025-04-01邵水桂
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Patent Information

Application Number
CN202510236811.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-04-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

While increasing the output torque, existing internal combustion engines usually reduce the final output speed, and cannot meet the needs of high torque and high speed at the same time.

Method used

An internal combustion engine is designed. By installing a spline shaft at the power output end of the crankshaft of the internal combustion engine and connecting it to the power input gear of the speed increaser, the gear box and multiple gear levels interlock each other to enhance the power output without reducing the speed.

Benefits of technology

With the same power and the same speed, the internal combustion engine can output more than several times the crankshaft torque, while the final output speed is still equal to the crankshaft speed and does not change the original speed characteristics.

✦ Generated by Eureka AI based on patent content.

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Abstract

An internal combustion engine, the main body of which includes an internal combustion engine crankshaft, an internal combustion engine main housing, and a torque increaser; the internal combustion engine crankshaft is installed in the internal combustion engine main housing; the shaft body of the internal combustion engine crankshaft power output end is set as a spline shaft; the spline shaft is installed outside the main housing of the internal combustion engine; the spline shaft is connected to the power input gear of the speed increaser; the speed increaser is installed on the main housing; the speed increaser body includes a gearbox, a power input gear, a transmission gear, a power output gear, and a bearing. The internal combustion engine crankshaft outputs power through the torque increaser, which can not only output a torque greater than the crankshaft, but also does not change the final output speed, that is, the final output speed is equal to the crankshaft speed.
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Description

Technical Field

[0001] The present invention relates to an internal combustion engine, and in particular to an internal combustion engine equipped with a torque converter which can increase torque without reducing rotation speed. Background Art

[0002] An internal combustion engine is a heat engine that converts heat energy directly into mechanical work by burning fuel inside the machine. Currently, in order to increase the output torque of internal combustion engines of the same power and speed, most of them use a gear combination. Although this method can increase the final output torque, it reduces the final output speed, that is, the final output speed is less than the crankshaft speed. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an internal combustion engine which has the characteristics of strong practicability, high working efficiency, and can increase the final output torque without reducing the final output speed.

[0004] The technical solution adopted by the present invention to solve its technical problem is to provide an internal combustion engine.

[0005] The technical solution of the present invention is: the main body comprises an internal combustion engine crankshaft, an internal combustion engine main housing, and a torque increaser; The crankshaft of the internal combustion engine is installed in the main housing of the internal combustion engine; The shaft body of the power output end of the crankshaft of the internal combustion engine is configured as a spline shaft; The spline shaft is installed outside the main housing of the internal combustion engine; The spline shaft is connected to the power input gear of the speed increaser; The speed increaser is installed on the main housing; The speed increaser body comprises a gear box, a power input gear, a transmission gear, a power output gear and a bearing.

[0006] The gear box is a hollow cube, and a plurality of bearing holes and mounting screw holes are arranged on both sides of the gear box.

[0007] The power input gear bearing is installed on the corresponding bearing hole of the gear box.

[0008] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline hole, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the bearing mounting shaft body is smaller than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a bearing mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the gear teeth are similar to rectangular parallelepiped teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is smaller than the tooth width in the corresponding tooth groove.

[0009] The transmission gear is a double-layer gear, and the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the power input gear layer tooth is a T-shaped tooth similar to a T-shaped tooth, and the end of the tooth is a cylinder; the tooth thickness of the tooth is smaller than the tooth width in the corresponding tooth groove; the number of teeth of the power output tooth layer is consistent with the number of teeth of the power input tooth layer, the tooth is a rectangular tooth, and the end of the tooth is arc-shaped, and the tooth thickness is smaller than the tooth width in the corresponding tooth groove.

[0010] The power output gear bearing is installed on the corresponding bearing hole of the gear box.

[0011] The power output gear is a single gear, and its main body includes a front end shaft, a power output shaft, a gear hub, and a power input gear layer; the front end shaft and the power output circle are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the power output shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output spline shaft, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body and larger than the diameter of the power output spline shaft; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are T-shaped teeth similar to the teeth, and the end of the teeth is a cylinder; the tooth thickness of the teeth in the corresponding tooth groove is smaller than the tooth groove width.

[0012] The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.

[0013] The teeth of the power input gear can engage with the teeth of the first transmission gear, the teeth of the transmission gears can engage with the teeth of adjacent transmission gears in turn, and the last transmission gear can engage with the teeth of the power output gear.

[0014] The power is input from the power input gear, passes through the transmission gear, and is finally output from the power output gear.

[0015] The beneficial effect of the present invention is that when the power and speed are the same, the internal combustion engine crankshaft outputs power through the torque increaser, which can not only output several times more crankshaft torque, but also does not change the final output speed, that is, the final output speed is equal to the crankshaft speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a simplified schematic diagram of the present invention Figure 2 This is a simplified diagram of the power input gear. Figure 3 This is a schematic diagram of the power input gear power output gear layer and the transmission gear power output gear layer Figure 4 This is a simplified diagram of the transmission gear Figure 5 This is a simplified schematic diagram of the power input gear layer of the transmission gear and the power output gear power input gear layer Figure 6 This is a schematic diagram of the power output gear Figure 7 This is a simplified diagram of power transmission when the power input gear teeth begin to engage the transmission gear. Figure 8 This is a simplified schematic diagram of power transmission when the power input gear teeth and the teeth of the meshing transmission gear are balanced. Fig. 9 This is a simplified diagram of power transmission when the power input gear teeth are about to engage the separation transmission gear. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] A structure and operation mode of an electric motor, the main body includes a crankshaft of an internal combustion engine, a main housing of the internal combustion engine, and a torque increaser; The crankshaft of the internal combustion engine is installed in the main housing of the internal combustion engine; The shaft body of the power output end of the crankshaft of the internal combustion engine is configured as a spline shaft; The spline shaft is installed outside the main housing of the internal combustion engine; The spline shaft is connected to the power input gear of the speed increaser; The speed increaser is installed on the main housing; The speed increaser body comprises a gear box, a power input gear, a transmission gear, a power output gear and a bearing.

[0019] The gear box is a hollow cube, and a plurality of bearing holes and mounting screw holes are arranged on both sides of the gear box.

[0020] The power input gear bearing is installed on the corresponding bearing hole of the gear box.

[0021] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline hole, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the bearing mounting shaft body is smaller than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a bearing mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the gear teeth are similar to rectangular parallelepiped teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is smaller than the tooth width in the corresponding tooth groove.

[0022] The transmission gears are provided with single-layer gears and double-layer gears, and there are three of them, namely double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, which are installed on the corresponding bearing holes of the gear box with bearings.

[0023] The double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, the transmission gear is a double-layer gear, the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the power input gear layer tooth is a T-shaped tooth similar to a T-shaped tooth, and the end of the tooth is a cylinder; the tooth thickness of the tooth is smaller than the tooth width in the corresponding tooth groove; the number of teeth of the power output tooth layer is consistent with the number of teeth of the power input tooth layer, the tooth is a rectangular tooth, and the end of the tooth is arc-shaped, and the tooth thickness is smaller than the tooth width in the corresponding tooth groove.

[0024] The power output gear bearing is installed on the corresponding bearing hole of the gear box.

[0025] The power output gear is a single gear, and its main body includes a front end shaft, a power output shaft, a gear hub, and a power input gear layer; the front end shaft and the power output circle are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the power output shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output spline shaft, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body and larger than the diameter of the power output spline shaft; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are T-shaped teeth similar to the teeth, and the end of the teeth is a cylinder; the tooth thickness of the teeth in the corresponding tooth groove is smaller than the tooth groove width.

[0026] The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.

[0027] The teeth of the power input gear can engage with the teeth of the first transmission gear, the teeth of the transmission gears can engage with the teeth of adjacent transmission gears in turn, and the last transmission gear can engage with the teeth of the power output gear.

[0028] The power is input from the power input gear, passes through the transmission gear, and is finally output from the power output gear.

[0029] In order to more intuitively reflect the beneficial transmission effect of the present invention, the mutual transmission between the torque increaser gears is shown in conjunction with the accompanying drawings.

[0030] In order to more conveniently and intuitively reflect the size of power input and power output, only the transmission of power of the teeth that mesh with each other is demonstrated, and the number of teeth that mesh with each other of the power input gear, transmission gear, and power output gear is consistent; like Figure 7 As shown, when one tooth of the power output tooth layer of the power input gear rotates to a position where it can engage with one tooth of the power input tooth layer of the double-layer transmission gear 1, this position is the engagement point, which clearly reflects that the power input torque of the power input gear is equal to the power output torque length of the power output gear, the resistance arm length on the power output tooth layer of the power input gear is equal to the power arm length on the power input tooth layer of the double-layer transmission gear 1, the resistance arm length on the power output tooth layer of the double-layer transmission gear 1 is less than the power arm length of the power input tooth layer of the double-layer transmission gear 2, the resistance arm length on the power input tooth layer of the double-layer transmission gear 2 is equal to the power arm length of the power input tooth layer of the double-layer transmission gear 3, and the resistance arm length of the power output tooth layer of the double-layer transmission gear 3 is less than the power arm length of the power input tooth layer of the power output gear; Assumption: The length of the power arm of the power input gear is A, and the resistance arm is B; The length of the power arm of the double-layer transmission gear 1 is C, and the length of the resistance arm is D; the length of the power arm of the double-layer transmission gear 2 is E, and the length of the resistance arm is F; the length of the power arm of the double-layer transmission gear 3 is G, and the length of the resistance arm is H; the length of the power arm of the power output gear is I, and the length of the resistance arm is J; then A = J, B = C, D < E, F = G, H < I. The total length of the power arm is A + C + E + G + I, and the total length of the resistance arm is B + D + F + H + J. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A = J, B = C, F = G, D < E, H < I, so E + I > D + H. In summary, the total length of the power arm is greater than the total length of the resistance arm, so the output power is greater than the input power.

[0031] As Figure 8 shown, it can be clearly seen that when a tooth of the power output tooth layer of the power input gear rotates to be parallel to a tooth of the power input tooth layer of the engaged double-layer transmission gear 1, it also reaches the middle of the distance between the engagement point and the separation point of the tooth engagement, which clearly reflects that the power input torque of the power input gear is equal to the length of the power output torque of the power output gear. The length of the resistance arm on the power output tooth layer of the power input gear is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 1. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 2. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 3. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is equal to the length of the power arm on the power input tooth layer of the power output gear; Assume: the length of the power arm of the power input gear is A1, and the length of the resistance arm is B1; the length of the power arm of the transmission gear 1 is C1, and the length of the resistance arm is D1; the length of the power arm of the transmission gear 2 is E1, and the length of the resistance arm is F1; the length of the power arm of the transmission gear 3 is G1, and the length of the resistance arm is H1; the length of the power arm of the power output gear is I1, and the length of the resistance arm is J1; then A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1. The total length of the power arm is A1 + C1 + E1 + G1 + I1, and the total length of the resistance arm is B1 + D1 + F1 + H1 + J1. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1, then B1 + F1 < C1 + G1. In summary, the total length of the power arm is greater than the total length of the resistance arm, so the output power is greater than the input power.

[0032] As Fig. 9As shown in the figure, when a tooth of the power input gear rotates to a position where it can be separated from the tooth of the meshing transmission gear, this position is the separation point, which clearly shows that the power input torque of the power input gear is equal to the length of the power output torque of the power output gear. The length of the resistance arm on the power output tooth layer of the power input gear is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 1. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 2. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 3. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is less than the length of the power arm on the power input tooth layer of the power output gear; Assumption: The length of the power arm of the power input gear is A2, and the resistance arm is B2; The length of the power arm of the double-layer transmission gear 1 is C2, and the resistance arm is D2; the length of the power arm of the double-layer transmission gear 2 is E2, and the resistance arm is F2; the length of the power arm of the double-layer transmission gear 3 is G2, and the resistance arm is H2; the length of the power arm of the power output gear is I2, and the resistance arm is J2; then A2 = J2, B2 = C2, D2 < E2, F2 = G2, H2 < I2. The total length of the power arms is A2 + C2 + E2 + G2 + I2, and the total length of the resistance arms is B2 + D2 + F2 + H2 + J2. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A2 = J2, B2 = C2, F2 = G2, D2 < E2, H2 < I2, therefore E2 + I2 > D2 + H2. In summary, the total length of the power arms is greater than the total length of the resistance arms, so the output power is greater than the input power.

[0033] In summary, the more double-layer transmission gears the torque converter has, the greater the output torque.

[0034] The number of teeth of the tooth layers of the above-mentioned power input gear, transmission gear, and power output gear that mesh with each other is the same; therefore, the rotation speed of the gears in one week is also the same. When the power input gear rotates one shaft, the power output gear also rotates one week. Therefore, the rotation speed of the power input gear is equal to the rotation speed of the power output gear.

[0035] In summary, it can be seen that when the internal combustion engine crankshaft outputs power through the torque converter, it can not only output several times the torque of the crankshaft, but also does not change the final output rotation speed, that is, the final output rotation speed is equal to the crankshaft rotation speed.

[0036] The above are only preferred embodiments for explanation. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. An internal combustion engine, characterized in that: The main body includes an internal combustion engine crankshaft, an internal combustion engine main housing, and a torque increaser; The crankshaft of the internal combustion engine is installed in the main housing of the internal combustion engine; The shaft body of the power output end of the crankshaft of the internal combustion engine is configured as a spline shaft; The spline shaft is installed outside the main housing of the internal combustion engine; The spline shaft is connected to the power input gear of the speed increaser; The speed increaser is installed on the main housing; The speed increaser body comprises a gear box, a power input gear, a transmission gear, a power output gear and a bearing.

2. According to claim 1, an internal combustion engine, characterized in that The power input gear of the torque increaser mainly includes a gear shaft, a gear hub, and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a power input spline hole, a bearing mounting shaft body, and a large shaft body, and the diameter of the bearing mounting shaft body is smaller than the diameter of the large shaft body; the rear end shaft is sequentially provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body.

3. According to claim 1, an internal combustion engine, characterized in that The transmission gear of the torque increaser is a double-layer gear, and the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer. The teeth of the power input gear layer and the teeth of the power output gear have the same structural shape, and the teeth of the power output gear layer and the teeth of the power input gear have the same structure; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the teeth of the power input gear layer are a T-shaped tooth similar to a T-shaped tooth, and the end of the tooth is a cylinder; the tooth thickness of the tooth is smaller than the tooth width in the corresponding tooth groove; the number of teeth of the power output gear layer is consistent with the number of teeth of the power input gear layer, the tooth is a rectangular tooth, and the end of the tooth is arc-shaped, and the tooth thickness in the corresponding tooth groove is smaller than the tooth width.

4. An internal combustion engine according to claim 1, characterized in that: The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.

5. An internal combustion engine according to claim 1, characterized in that: The crankshaft of the internal combustion engine outputs power through the torque increaser, which not only outputs a torque greater than that of the crankshaft, but also does not change the final output speed, that is, the final output speed is equal to the crankshaft speed.