Length variable connecting rod

A connecting rod and variable technology, applied in the connecting rod, machine/engine, shaft and bearing, etc., can solve the problems of the invariable compression ratio of the engine combustion chamber, the inability to solve the contradiction between fuel consumption and knocking, and the difficulty in implementing the scheme. The effect of improving reliability and economy, simple and reliable structure and low cost

Active Publication Date: 2018-01-02
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The compression ratio of the combustion chamber of the engine is immutable, which cannot solve the contradiction between fuel consumption and knocking
[0004] 2. The compression ratio of the engine combustion chamber is variable, but the structure is complex, the cost is high, the reliability is poor, and the implementation of the scheme is difficult

Method used

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  • Length variable connecting rod
  • Length variable connecting rod
  • Length variable connecting rod

Examples

Experimental program
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Embodiment Construction

[0045] Connecting rod 100 as Figure 4 As shown, it includes a small-diameter round hole 101, a large-diameter round hole 102, a high compression ratio oil passage 103, a low compression ratio oil passage 106 and a first oil inlet oil passage 111, a hole 108 for placing the spool, and a place for placing the limit member. the first groove 110 .

[0046] The high compression ratio oil passage 103 communicates with the small-diameter round hole 101 of the connecting rod and the hole 108 for placing the spool; the low compression ratio oil passage 106 communicates with the small-diameter round hole 101 of the connecting rod and the hole 108 for placing the spool; the low compression ratio oil passage and the There is no communication between the high compression ratio oil passages.

[0047] The first oil inlet passage 111 communicates with the large-diameter circular hole 102 of the connecting rod and the hole 108 for placing the valve core. On the inner wall of the small-diame...

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PUM

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Abstract

The invention discloses a length variable connecting rod which comprises a connecting rod main body, an eccentric part, a limiting component and a valve core. According to the connecting rod disclosedby the invention, an effective length of the connecting rod can be controllable and variable, so that the compression ratio of a gasoline engine is changed, the thermal efficiency of partial load ofthe gasoline engine can be improved, engine knocking during full load can be avoided, and the reliability and economical efficiency of the engine are effectively improved. The length variable connecting rod disclosed by the invention is simple and reliable in structure, small in size, low in cost and excellent in applicability of the existing volume production models. The length variable connecting rod disclosed by the invention is also applicable to a diesel engine.

Description

technical field [0001] The invention relates to the field of gasoline and diesel engine combustion systems. Background technique [0002] Currently existing solutions: [0003] 1. The compression ratio of the engine combustion chamber is immutable, which cannot solve the contradiction between fuel consumption and knocking. [0004] 2. The compression ratio of the engine combustion chamber is variable, but the structure is complicated, the cost is high, the reliability is poor, and the scheme is difficult to implement. Contents of the invention [0005] The purpose of the present invention is to provide a controllable and variable length connecting rod, thereby changing the compression ratio of the engine; it has the beneficial effects of simple and reliable structure, small volume, low cost, and good applicability to existing mass-produced models. [0006] In order to realize above-mentioned technical purpose, the present invention adopts following technical scheme: [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/04F16C7/06
Inventor 冉冬立樊嘉天居钰生王凯董效彬许俊徐明星
Owner CHINA FIRST AUTOMOBILE
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