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Assembly method of variable compression ratio drive structure

A technology of drive structure and assembly method, which is applied in the direction of engine lubrication, assembly machine, pressure lubricant, etc., can solve the problems of difficult to guarantee assembly accuracy, large overall width of the engine, and complicated assembly of the drive structure, so as to ensure the lubricating effect. Facilitates reliable setup and simple structure

Active Publication Date: 2022-06-28
GREAT WALL MOTOR CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

The existing structural form leads to a large overall width of the engine, which is not conducive to the vehicle. In addition, in the side-mounted motor structure, it is necessary to leave a motor installation space or process a motor installation bracket during the processing of the cylinder body, which also makes the cylinder body structure more complex. Complex and difficult to process
In addition, in the current variable compression ratio mechanism, the drive structure also has the problem of complicated assembly and difficult to guarantee the assembly accuracy.

Method used

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  • Assembly method of variable compression ratio drive structure
  • Assembly method of variable compression ratio drive structure
  • Assembly method of variable compression ratio drive structure

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Embodiment Construction

[0050] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0051] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0052] This embodiment relates to a method for assembling a variable compression ratio driving structure, wherein the variable compression ratio driving structure is generally used as a part of the variable compression ratio mechanism to drive the eccentric shaft in the variable compression ratio mechanism Rotation, and then realize the adjustment of the engine compression ratio.

[0053] In detail, for the above variable compression ratio mechanism, it is specifically a multi-link variable compression ratio mechanism, and an exemplary structure of the mechanism may be as follows figure 1 As shown in , the variable compression ratio mechanism at this tim...

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Abstract

The invention provides an assembly method of a variable compression ratio drive structure, the variable compression ratio drive structure drives the eccentric shaft in the variable compression ratio mechanism to rotate, and includes a harmonic reducer fixed on the engine block unit, and the motor unit fixed on the rigid wheel in the harmonic reducer unit, the assembly method includes first installing the rigid wheel, flexible wheel and eccentric shaft, and then installing them into the engine block, Then install the wave generator, the timing cover and the motor unit, and complete the sealing between the motor unit and the timing cover with the installation of the motor unit. The assembling method of the invention can realize the assembling of the variable compression ratio driving structure, and the assembling is relatively simple, can improve the assembling precision, and is beneficial to the reliable setting of the driving structure.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a method for assembling a variable compression ratio drive structure. Background technique [0002] In order to reduce engine displacement, improve fuel combustion efficiency and fuel economy, variable compression ratio technology emerged as the times require. With the continuous development of variable compression ratio technology, compression ratio adjustment forms are becoming more and more diverse. Among them, the multi-link variable compression ratio mechanism that uses the eccentric shaft to cooperate with the multi-link mechanism to drive the eccentric shaft to rotate through the multi-link mechanism, thereby realizing the change of the top dead center of the engine piston, has become a lot of car companies. focus of research and development. [0003] In the current multi-link variable compression ratio mechanism, the matching structure of the motor and the harmonic reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B75/04F01M1/06F01M1/10B23P21/00
CPCF02B75/045F01M1/06F01M1/10B23P21/00F01M2001/1028Y02P70/10
Inventor 刘涛杨乐苏旭朝张树旻渠娜尹吉刘君宇董高峰钟德华王文远刘刚谷世宁
Owner GREAT WALL MOTOR CO LTD
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