Internal combustion engine variable compression ratio device provided with self-locking structure

A technology of self-locking structure and internal combustion engine, which is applied in the direction of mechanical equipment, engine control, machine/engine, etc., can solve the problems of complex supporting systems and control mechanisms, and achieve the effect of compact and light structure

Inactive Publication Date: 2014-05-14
梁荣光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The design mechanisms of the above patents all require auxiliary links or drivers to ensure that the stroke of the main link can be adjusted, and the supporting systems and control mechanisms are complicated.

Method used

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  • Internal combustion engine variable compression ratio device provided with self-locking structure
  • Internal combustion engine variable compression ratio device provided with self-locking structure
  • Internal combustion engine variable compression ratio device provided with self-locking structure

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Embodiment Construction

[0032] Hereinafter, the present invention will be further described with reference to the drawings and specific implementations:

[0033] Such as Figure 1-8 Shown is a variable compression ratio device of an internal combustion engine with a self-locking structure of the present invention, which includes a connecting rod 1, an eccentric sleeve 31, and a return spring 2 on the internal combustion engine. One end of the connecting rod 1 is connected to the crankshaft of the internal combustion engine A cavity is formed at the other end, the eccentric sleeve 31 is inserted into the cavity, one end of the return spring 2 is fixed on the connecting rod 1, and the other end is fixed on the eccentric sleeve 31. The eccentric sleeve 31 The piston pin 6 is sleeved on the internal combustion engine and can rotate with the piston pin 6. The central axis of the eccentric sleeve 31 is staggered from the central axis of the piston pin 6. Driven by the piston pin 6, the eccentric sleeve 31 ca...

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PUM

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Abstract

The invention discloses an internal combustion engine variable compression ratio device provided with a self-locking structure. The device comprises a connecting rod located on an internal combustion engine, an eccentric sleeve and a reset spring. One end of the connecting rod is connected with a crankshaft of the internal combustion engine, a cavity is formed in the other end of the connecting rod, the eccentric sleeve is arranged in the cavity in an inserted mode, one end of the rest spring is fixed to the connecting rod, the other end of the reset spring is fixed to the eccentric sleeve, a piston pin on the internal combustion engine is sleeved with the eccentric sleeve, the eccentric sleeve can rotate along with the piston pin, and the center axis of the eccentric sleeve and the center axis of the piston pin are staggered. Under the action of centrifugal force, the eccentric sleeve rotates around the piston pin, so that the center distance between the small end and the large end of the connecting rod is changed, and stroke adjustment of the connecting rod is achieved, namely compression ratio adjustment is achieved. Due to reasonable arrangement of the rotation center of the eccentric sleeve and the center of the small end of the connecting rod, the device has a self-locking function. When self-locking conditions are met, the eccentric sleeve and the connecting rod swing synchronously, and self-locking is achieved.

Description

Technical field [0001] The invention relates to a variable compression ratio device of an internal combustion engine, in particular to a variable compression ratio device of an internal combustion engine with a self-locking structure. Background technique [0002] The change in the center distance of the connecting rod of the internal combustion engine will lead to the compression ratio of the internal combustion engine. The compression ratio of the internal combustion engine directly affects the pressure of the mixture in the cylinder of the internal combustion engine, affects the combustion explosion pressure of the mixture, affects the combustion speed, and then affects the power performance, emission performance and economy of the internal combustion engine. Sex. [0003] At present, there have been reports on the mechanism for adjusting the compression ratio through the variable stroke of the connecting rod. For example, the patent name is a device with variable compression ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D15/02F02B75/04
Inventor 梁荣光
Owner 梁荣光
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