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Variable-compression-ratio structure of engine and engine

A technology of engine and compression ratio, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., and can solve problems such as poor reliability and complex structure

Inactive Publication Date: 2015-08-19
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, some engines can change the compression ratio by changing the space of the combustion chamber, but due to the high temperature in the combustion chamber and the precise design, it will lead to problems such as complex structure and poor working reliability

Method used

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  • Variable-compression-ratio structure of engine and engine
  • Variable-compression-ratio structure of engine and engine
  • Variable-compression-ratio structure of engine and engine

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0021] Such as figure 1 As shown, the present invention provides a variable compression ratio structure of an engine, including a crankcase 10 and a crankshaft 12 installed in the crankcase 10 through a main bearing housing 11, and the variable compression ratio structure of an engine includes an eccentric adjustment ring 20 and a drive mechanism, the eccentric adjustment ring 20 is sleeved on the main journal of the crankshaft 12 and installed in the main bearing seat 11, and the driving mechanism is used to drive the eccentric adjustment ring 20 to rotate in the main bearing seat 11 To change the position of the crankshaft 12 in the crankcase 10 . figure 1 R...

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PUM

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Abstract

The invention discloses a variable-compression-ratio structure of an engine. The variable-compression-ratio structure of the engine comprises a crank shaft case, a crank shaft installed in the crank shaft case through a main bearing seat, an eccentric adjustment ring and a driving mechanism, wherein the eccentric adjustment ring is installed on a spindle neck of the crank shaft in a sleeving mode and installed in the main bearing seat, the driving mechanism is used for driving the eccentric adjustment ring to rotate in the main bearing seat so as to change the position of the crank shaft in the crank shaft case. The invention further discloses the engine. The engine comprises the variable-compression-ratio structure. In the variable-compression-ratio structure, the position of the crank shaft in the crank shaft case is changed through the eccentric adjustment ring, accordingly the position of a top dead center of a piston and the compression ratio of the engine can be changed, and the variable-compression-ratio structure is simple and easy to achieve.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine variable compression ratio structure and an engine including the structure. Background technique [0002] In order to improve the working efficiency of the engine under different working conditions and reduce the emission of pollutants, an engine capable of changing the compression ratio has emerged as the times require. [0003] In the prior art, some engines can change the compression ratio by changing the space of the combustion chamber, but due to the high temperature and precise design of the combustion chamber, problems such as complex structure and poor working reliability will result. Contents of the invention [0004] The purpose of the present invention is to provide a novel engine variable compression ratio structure, which can dynamically adjust the compression ratio of the engine, and has a simple structure and is easy to realize. [0005] In order to ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D15/02F02B75/04
Inventor 吴天亭
Owner BEIQI FOTON MOTOR CO LTD
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