A novel engine front-end wheel system structure

Abstract

This utility model provides a novel engine front-end pulley structure, including a crankshaft pulley, a water pump drive pulley, a generator pulley, and a compressor pulley, all connected sequentially by a belt and located in the same plane. The generator pulley includes a first generator pulley and a second generator pulley, which are respectively located on both sides of the engine and connected to a generator. The second generator pulley is located to the lower left of the first generator pulley, the water pump drive pulley is located in the middle of the pulley system, the compressor pulley is located below the first generator pulley, and the crankshaft pulley is located in the lower middle part of the engine. The crankshaft pulley is connected to the engine crankshaft, and the belt is guided and driven by a flat idler pulley. This structure enables the engine to start and drive two generators to run simultaneously. The simultaneous operation of the generators on both sides can balance the state of the entire pulley system, reducing the vibration phenomenon caused by a single engine or compressor at the moment of startup in the prior art, and facilitating electricity use in the field.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to a novel engine front-end wheel system structure. Background Technology

[0002] In existing technology, engines are usually equipped with only one generator, which is responsible for converting mechanical energy into electrical energy to power the battery when the engine is running. Both the generator and the compressor are installed on the intake side of the engine. This layout results in poor balance of the entire gear system and more obvious vibration at the moment of start-up.

[0003] In addition, with the improvement of people's quality of life, many people go out for leisure and picnics on rest days and holidays, which has led to a significant increase in the market demand for small motorhomes. To ensure the convenience of electricity use when people go out for picnics, a new power battery is usually added to the vehicle to meet the power needs of people in addition to the power consumption of the whole vehicle. However, the power supply problem of the newly added power battery is quite complicated, and the power needs of people in the wild cannot be met. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a novel engine front-end wheel system structure, which can optimize power distribution, reduce engine start-up vibration, and facilitate electricity use in the field.

[0005] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0006] A novel engine front-end pulley system includes a crankshaft pulley, a water pump drive pulley, a generator pulley, and a compressor pulley, all connected sequentially by a belt and located in the same plane. The generator pulley comprises a first generator pulley and a second generator pulley, which are respectively located on opposite sides of the engine and each connected to a generator. The second generator pulley is located to the lower left of the first generator pulley. The water pump drive pulley is located in the middle of the pulley system. The compressor pulley is located below the first generator pulley. The crankshaft pulley is located in the lower middle part of the engine and is connected to the engine crankshaft. The belt is guided and driven by a flat idler pulley.

[0007] Furthermore, the flat idler wheel is mounted on the engine block, located between the compressor pulley and the first generator pulley.

[0008] Furthermore, a tensioning pulley is provided between the water pump drive pulley and the second generator pulley, and the tensioning pulley is mounted on the engine block.

[0009] Furthermore, the first generator pulley is mounted on the first generator, and the second generator pulley is mounted on the second generator.

[0010] Furthermore, the first generator is positioned near the intake side of the engine block.

[0011] Furthermore, the second generator is positioned near the exhaust side of the engine block.

[0012] Furthermore, the belt is a PK multi-wedge belt.

[0013] Furthermore, both the flat idler pulley and the water pump drive pulley are smooth pulleys and are in contact with the outer side of the belt.

[0014] Furthermore, the tensioner, crankshaft pulley, generator pulley, and compressor pulley are all grooved pulleys and are in contact with the transmission surface of the belt.

[0015] Furthermore, the water pump pulley is connected to the water pump, and the compressor pulley is connected to the compressor.

[0016] Compared with the prior art, this utility model has at least the following advantages and beneficial effects:

[0017] 1. This utility model adds a new generator on the exhaust side of the engine, namely a second generator connected by a pulley of the second generator. Thus, a generator is set on both sides of the engine, namely the exhaust side and the intake side. A new generator bracket is developed according to the installation space position. Both generators are driven by the same belt. Relying on the generators on both sides, the state of the whole machine and the wheel system can be balanced, reducing the vibration phenomenon caused by a single engine and compressor at the moment of start-up in the prior art.

[0018] 2. The second generator, connected to the pulley of the second generator, is connected to the power battery pack and can be used specifically to charge the power battery, which is convenient and meets people's power needs in the field.

[0019] Advantages of the present invention in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a side view of the front wheel system structure of the novel engine of this utility model;

[0022] Figure 2 This is a front view of the front wheel system structure of the novel engine of this utility model;

[0023] Figure 3 This is a simplified diagram of the front-end wheel system structure of the novel engine of this utility model;

[0024] Among them, 1. belt; 2. crankshaft pulley; 3. water pump drive pulley; 4. compressor pulley; 5. first generator pulley; 6. second generator pulley; 7. flat idler pulley; 8. first generator bracket; 9. second generator bracket; 10. tension pulley; 11. compressor bracket; 12. first generator; 13. second generator. Detailed Implementation

[0025] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0026] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] Example 1:

[0028] like Figure 1 and Figure 3 As shown, this embodiment provides a novel engine front-end pulley system structure, including a crankshaft pulley 2, a water pump drive pulley 3, a generator pulley, and a compressor pulley 4, which are connected sequentially by a belt 1 and are in the same plane. The generator pulley includes a first generator pulley 5 and a second generator pulley 6. The first generator pulley 5 and the second generator pulley 6 are respectively located on both sides of the engine and are each connected to the generator. The second generator pulley 6 is located to the lower left of the first generator pulley. The water pump drive pulley is located in the middle of the pulley system. The compressor pulley 4 is located below the first generator pulley 5, specifically in the lower right part of the engine. The crankshaft pulley 2 is located in the lower middle part of the engine and is connected to the engine crankshaft. The belt 1 is guided and driven by a flat idler pulley 7.

[0029] In this embodiment, the water pump drive pulley 3 is connected to the water pump and can drive the water pump to operate. The compressor pulley 4 is connected to the compressor and can drive the compressor to operate. The first generator pulley is connected to the first generator 12, and the second generator pulley is connected to the second generator 13.

[0030] In this embodiment, the first generator 12 is located near the engine intake side, and the second generator 13 is located near the engine exhaust side. The second generator pulley and the second generator are specifically installed below the exhaust manifold. In addition, both generator pulleys are driven by the same belt, and the crankshaft pulley is connected to the engine crankshaft. When the engine starts, the engine power is transmitted from the engine crankshaft to the crankshaft pulley, and then the first generator pulley and the second generator pulley will rotate via the same belt, thereby driving the first generator and the second generator on the left and right sides of the engine to start simultaneously. Since the generators on the left and right sides start simultaneously, the simultaneous vibration of the two generators can adjust the balance of the whole machine and the gear system, and reduce the vibration phenomenon generated by the engine and compressor at the moment of startup.

[0031] As people's quality of life improves, many people go out for leisure and picnics on weekends and holidays. To ensure the convenience of electricity use when people go out for picnics, a power battery is usually added to the vehicle. In this embodiment, the second generator 13 is connected to the power battery pack through a wiring harness to ensure the power needs of people when they go out for leisure and picnics. The second generator is dedicated to charging the power battery, thus providing electricity for people other than the power used by the whole vehicle. This can meet the power needs of people when they go out for leisure and picnics on weekends and holidays. The first generator 12 is connected to the battery through a wiring harness and is dedicated to charging the battery. This can meet the power needs of the whole vehicle, such as starting the vehicle and the headlights.

[0032] like Figure 2 As shown, in order to ensure that the first generator and the second generator can be fixed on both sides of the engine respectively, this embodiment provides a first generator bracket 8 and a second generator bracket 9 on the engine block. The position of the first generator bracket 8 corresponds one-to-one with the front and rear of the first generator pulley 5, and the position of the second generator bracket 9 corresponds one-to-one with the front and rear of the second generator pulley. The first generator is connected to the first generator bracket 8, and the second generator 13 is connected to the second generator bracket, thereby achieving the fixation of the two generators.

[0033] In this embodiment, the flat idler pulley 7 is installed on the compressor bracket 11, located between the compressor pulley 4 and the first generator pulley 5. It is a gear train component that mainly serves as a transition and does not change the transmission relationship. It is installed between the compressor pulley 4 and the first generator pulley 5 to increase the wrap angle of the pulley, avoid slippage, make the force on the gear train more reasonable, and meet the requirements of the entire transmission system layout.

[0034] In addition, a tensioning pulley 10 is provided between the water pump drive pulley 3 and the second generator pulley 6. The tensioning pulley 10 is mounted on the engine block and is used to adjust the tension of the belt to ensure the stability and reliability of the transmission system. By automatically adjusting the tension, the tensioning pulley can reduce the vibration of the belt during operation and prevent the belt from slipping to a certain extent, thereby ensuring the normal and stable operation of the transmission system.

[0035] In this embodiment, belt 1 is a PK multi-ribbed belt, which has a stable and reliable transmission effect. The flat idler pulley and the water pump drive pulley are both smooth wheels with flat transmission surfaces. The use of smooth wheels for the flat idler pulley and the water pump drive pulley can reduce the friction between them and the belt or wheel surface, thereby reducing energy loss and improving transmission efficiency. The tension pulley, crankshaft pulley, generator pulley and compressor pulley are all grooved pulleys. Grooved pulleys have the function of maintaining belt tension and damping vibration, which can effectively reduce the unevenness of crankshaft speed and reduce the impact on the belt and various front-end pulley accessories.

[0036] When the vehicle starts, the battery supplies power to the starter motor on the engine. Since the starter motor ring gear meshes with the flywheel ring gear, the starter motor converts the electrical energy of the battery into mechanical energy and drives the flywheel ring gear to rotate. The flywheel ring gear is coaxial with the crankshaft pulley, so the engine drives the crankshaft pulley to rotate through the flywheel ring gear. The crankshaft pulley is connected to each pulley by the same belt, which drives each pulley to work synchronously. This causes the first generator, the second generator, the water pump, and the compressor to operate synchronously. The first generator charges the battery to meet the power needs of the vehicle, such as starting and headlights, while the second generator charges the power battery to provide power for personnel other than the vehicle.

[0037] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A novel engine front end drive train structure, characterized by, The system includes a crankshaft pulley, a water pump drive pulley, a generator pulley, and a compressor pulley, all connected sequentially by a belt and located in the same plane. The generator pulley comprises a first generator pulley and a second generator pulley, which are respectively located on both sides of the engine and connected to the generator. The second generator pulley is located to the lower left of the first generator pulley. The water pump drive pulley is located in the middle of the pulley system. The compressor pulley is located below the first generator pulley. The crankshaft pulley is located in the lower middle part of the engine and is connected to the engine crankshaft. The belt is guided and driven by a flat idler pulley.

2. A novel engine front end accessory drive arrangement as claimed in claim 1, wherein, The flat idler wheel is mounted on the engine block and is located between the compressor pulley and the first generator pulley.

3. A novel engine front end accessory drive arrangement as claimed in claim 1, wherein, A tensioning pulley is provided between the water pump drive pulley and the second generator pulley, and the tensioning pulley is mounted on the engine block.

4. A novel engine front end accessory drive arrangement as claimed in claim 1, wherein, The first generator pulley is mounted on the first generator, and the second generator pulley is mounted on the second generator.

5. A novel engine front end accessory drive arrangement as claimed in claim 4, wherein, The first generator is located near the air intake side of the engine block.

6. A novel engine front end accessory drive arrangement as claimed in claim 1, wherein, The second generator is located near the exhaust side of the engine block.

7. A novel engine front end accessory drive arrangement as claimed in claim 1, wherein, The belt is a PK multi-wedge belt.

8. A novel engine front end accessory drive arrangement as claimed in claim 3 wherein, Both the flat idler pulley and the water pump drive pulley are smooth pulleys and are in contact with the outer side of the belt.

9. A novel engine front-end wheel system structure as described in claim 1, characterized in that, The water pump drive pulley is connected to the water pump, and the compressor pulley is connected to the compressor.

10. A novel engine front end accessory drive arrangement as claimed in claim 3 wherein, The tensioning pulley, crankshaft pulley, generator pulley, and compressor pulley are all grooved pulleys and are in contact with the transmission surface of the belt.

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