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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., can solve the problem of high methane emission of engine, achieve the effect of reducing CH4 emission, improving combustion quality, and solving high methane emission

Active Publication Date: 2022-06-28
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the invention by way of example, but not to limit the scope of the invention, that is, the 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" etc. are only used for the purpose of description, and should not be construed 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 the present invention. The invention and simplified d...

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Abstract

The invention discloses an engine pre-combustion chamber structure and an engine. The engine pre-combustion chamber structure includes a body extending along a first direction, and an accommodation space is provided inside the body. Along the first direction, the first end of the main body is sealed by the engine cylinder head and the spark plug, and the second end of the main body is provided with a connecting hole through which the accommodation space communicates with the main combustion chamber of the engine. Wherein the region on the cylinder head of the engine for sealing the first end of the body is provided with a flow guiding part extending around the first direction. The cylinder head of the engine is provided with an air supply channel starting from the first end of the body, extending away from the first end of the body, and inclined relative to the first direction. The accommodation space provides natural gas. The engine pre-combustion chamber structure of the present invention can reduce the occurrence of natural gas flowing into the main body directly leaking into the main combustion chamber of the engine through the connecting hole without being burned inside the main body, and reduce the CH of the main combustion chamber of the engine. 4 emission.

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 on the engine consisting of the cylinder head, the cylinder liner and the top surface of the piston is the combustion chamber, also known as the main combustion chamber, which is an important area for mixing, burning and pushing the piston to do work. Engines also typically have pre-chambers to increase the rate of combustion. The pre-chamber is a semi-closed structure in which the gas burns, and the flame spreads into the main combustion chamber through the connecting hole at the end of the pre-chamber. [0003] A reasonable pre-combustion chamber structure is very important to the combustion and emission of the engine. The existing engine has a pre-combustion chamber, and the combustion speed is improved. However, during the intake process, the mixture in the pre-combustion chamb...

Claims

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Application Information

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Patent Type & Authority Patents(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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