Cylinder cover system capable of adjusting compression ratio for engine and internal combustion engine with cylinder cover system

A compression ratio, engine technology, applied in engine components, engine control, machine/engine, etc., can solve problems such as being unsuitable for production and use, large and complex changes to the overall layout of the engine, and achieve a simple and stable structure.

Pending Publication Date: 2016-01-20
宁波星豪汽车维修有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall movement of the cylinder head is not only complicated to implement and the cylinder head is connected to the intake system, but the overall movement of the cylinder head will inevitably implicate the intake system, so that the overall layout of the engine will also be greatly changed, which is not suitable for production and use.

Method used

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  • Cylinder cover system capable of adjusting compression ratio for engine and internal combustion engine with cylinder cover system
  • Cylinder cover system capable of adjusting compression ratio for engine and internal combustion engine with cylinder cover system

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Embodiment Construction

[0021] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] The engine adjustable compression ratio cylinder head system of this embodiment comprises:

[0023] The main cylinder head 100 is connected with the piston cylinder 10; the main cylinder head is provided with an intake channel 110 and an exhaust channel 120;

[0024] The movable cylinder head 200 is arranged in the main cylinder head, and the secondary air intake passage 210 and the secondary exhaust passage 220 corresponding to the intake passage are opened on the movable cylinder head; the movable cylinder head and the piston in the piston cylinder The space between 20 is combustion chamber 30;

[0025] The intake valve 300 and the exhaust valve 400 are arranged in the movable cylinder head and are used to close or ope...

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PUM

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Abstract

The invention discloses a cylinder cover system capable of adjusting the compression ratio for an engine. The cylinder cover system comprises a main cylinder cover, a movable cylinder cover, an air inlet valve, an air exhausting valve and an acting part, wherein the main cylinder cover is connected with a piston cylinder body and provided with an air inlet passage and an air exhausting passage; the movable cylinder cover is arranged in the main cylinder cover and provided with a secondary air inlet passage and a second air exhausting passage corresponding to the air inlet passage; the space between the movable cylinder cover and a piston in the piston cylinder body is a combustion chamber; the air inlet valve and the air exhausting valve are arranged in the movable cylinder cover and used for sealing or opening the secondary air inlet passage or the secondary air exhausting passage; the acting part is connected with the movable cylinder cover and acts to drive the movable cylinder cover to move vertically. The compression ratio can be changed without moving the whole cylinder cover, and an original air distribution system does not need to be changed.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an engine adjustable compression ratio cylinder head system and an internal combustion engine with the cylinder head system. Background technique [0002] The compression ratio is the ratio of the total volume of the cylinder to the volume of the combustion chamber. It indicates the degree of compression of the gas in the cylinder when the piston moves from the bottom dead center to the top dead center. It is an important parameter to measure the performance of the engine and the most important factor affecting the efficiency of the engine. one. [0003] Variable compression ratio technology is mainly a technology for supercharged engines. A fixed compression ratio cannot give full play to the performance of the engine. When running at low load and low speed, the thermal efficiency of the engine is low, and the overall performance is correspondingly poor. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/24F02F1/42F02D15/04
Inventor 董伟冈
Owner 宁波星豪汽车维修有限公司
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