Variable compression ratio device of piston reciprocating internal combustion engine

A variable compression ratio and internal combustion engine technology, applied to pistons, mechanical equipment, engine components, etc., can solve problems such as heavy mass, insufficient practicability, and complex structure, and achieve the effects of small inertia, simple structure, and fast response

Inactive Publication Date: 2007-08-15
袁辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above three devices all have the defects of heavy weight and complex structure, which lead to their insufficient practicability.

Method used

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  • Variable compression ratio device of piston reciprocating internal combustion engine
  • Variable compression ratio device of piston reciprocating internal combustion engine
  • Variable compression ratio device of piston reciprocating internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0050] Figures 1 to 5 show the first embodiment of this patent. This embodiment can realize the two-stage compression ratio changed from high compression ratio to low compression ratio.

[0051] In Fig. 1, the crankshaft (1) can rotate around the main journal in the body (2), the large end of the connecting rod can rotate around the crank pin of the crankshaft (1), the piston pin (5) can rotate around the small end of the connecting rod, and the piston pin ( 5) Both ends are connected to the piston (8) through sliders (4a, 4b), and the piston (8) can be slidably embedded in the cylinder (6) in the axial direction, between the top of the piston (8) and the cylinder (6) The space inside is the combustion chamber (7); there is an oil hole (5a) radially arranged in the middle of the piston pin (5), so that the inner chamber of the piston pin (5b) passes through the oil hole (5a), the oil groove of the small end pin hole of the connecting rod (3b ), the connecting rod oil passage ...

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PUM

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Abstract

The invention relates to a variable-compression device of piston reciprocating internal combustion engine, comprising a connecting rod, a piston pin, and a piston. The middle of the piston pin is hinged in a small pin hole of the connecting rod, while two ends of the piston pin are sheathed with blocks sliding along end axis, and two sides of the piston are arranged with sliding grooves in which the blocks embedded slide, the sliding motion of blocks in the piston pins are relative to the sliding motion in the sliding grooves, the hydraulic cylinder executor is integrated with the piston pin, the piston pin contains a drawing spring to draw near two end blocks, the hydraulic force and the drawing spring can move near or far the blocks, when the block is added with a servo control valve, via operating a V-shaped groove at the bottom of the cylinder, the V-shaped groove via the connecting rod operates the servo control valve to realize stepless compression change. The invention has simple structure or the like.

Description

technical field [0001] The invention relates to a variable compression ratio device of a piston reciprocating internal combustion engine, in particular to a device for realizing variable compression ratio through relative movement of pistons. Background technique [0002] At present, the known devices for realizing the variable compression ratio through the relative movement of the piston on the piston reciprocating internal combustion engine include: [0003] (1) The piston outer part is screwed and embedded on the outer circumference of the piston inner part, and the piston inner part is hinged to the small end of the connecting rod. By making the piston outer part relative to the inner part in forward and reverse directions, it produces a relative piston inner part. Expansion and contraction movement to achieve the purpose of changing the axial relative position of the inner and outer parts of the piston and thus changing the compression ratio of the internal combustion e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D15/02F02B75/04F02F3/00
Inventor 袁辉袁晓斌王军如袁卫兵刘敏
Owner 袁辉
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