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Engine pre-combustion chamber structure and engine

A technology of engine and pre-combustion chamber, which is applied in the direction of combustion engine, machine/engine, internal combustion piston engine, etc. It can solve the problem of high methane emission of engine, achieve the effect of reducing CH4 emission, solving high methane emission and improving combustion quality

Active Publication Date: 2021-04-13
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an engine pre-combustion chamber structure and an engine to solve the problem of high methane emissions from the engine

Method used

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  • Engine pre-combustion chamber structure and engine
  • Engine pre-combustion chamber structure and engine
  • Engine pre-combustion chamber structure and engine

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Embodiment Construction

[0024] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The detailed description and drawings of the following embodiments are used to illustrate the principle of the present invention, but not to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0025] In the description of the present invention, it should be noted that, unless otherwise stated, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; The meaning is two or more; the orientation or positional relationship indicated by the terms "inner", "outer", "top", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this The invention and the simplified description do not indicate or imply that th...

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Abstract

The invention discloses an engine pre-combustion chamber structure and an engine. The engine pre-combustion chamber structure comprises a body extending in a first direction, and a containing space is formed in the body. In the first direction, the first end of the body is sealed by an engine cylinder cover and a spark plug, the second end of the body is provided with a connecting hole, and the containing space is communicated with an engine main combustion chamber through the connecting hole. The area, used for sealing the first end of the body, of the engine cylinder cover is provided with a flow guide part extending in the first direction. The engine cylinder cover is provided with a gas supply channel which extends away from the first end of the body from the first end of the body and inclines relative to the first direction, and the gas supply channel is connected with the flow guide part and used for supplying natural gas to the containing space in the body. According to the engine pre-combustion chamber structure, the situation that natural gas flowing into the body directly leaks into the engine main combustion chamber through the connecting hole without combustion in the body can be reduced, and the CH4 emission of the engine main combustion chamber is reduced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine pre-combustion chamber structure and an engine. Background technique [0002] The space above the cylinder head, cylinder liner and piston top surface on the engine is the combustion chamber, also known as the main combustion chamber, which is an important area to complete the mixing of fuel and air, combustion and push the piston to do work. Engines also typically have a pre-chamber to increase the rate of combustion. The pre-chamber is a semi-closed structure, the gas burns inside it, and the flame spreads to the main combustion chamber through the connecting hole at the end of the pre-chamber. [0003] A reasonable pre-chamber structure is very important to the combustion and emission of the engine. Because the existing engine has a pre-combustion chamber, the combustion speed is improved. However, during the intake process, the mixture in the pre-combustion chambe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B19/08F02B19/12F02B19/16
CPCF02B19/08F02B19/12F02B19/16Y02T10/12
Inventor 李玉娟王俊莉徐清祥冯志强
Owner WEICHAI POWER CO LTD
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