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Engine ignition mechanism and engine combustion system thereof

A technology of ignition mechanism and combustion system, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of complex design, slow combustion speed, and low thermal efficiency of the new ignition system, and achieve high practicability, low cost, and high thermal efficiency. high effect

Active Publication Date: 2019-08-09
TSINGHUA UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to provide an engine ignition mechanism and its engine combustion system, which solves the problems of slow combustion speed, low isovolumetric degree, low thermal efficiency and the complex design, high cost and practicability of the new ignition system of the traditional ignition type engine. low problem

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  • Engine ignition mechanism and engine combustion system thereof

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Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0024] Such as figure ...

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Abstract

The invention relates to the technical field of internal combustion engines and discloses an engine ignition mechanism. The engine ignition mechanism comprises a spark plug and a flame accelerating cavity. The flame accelerating cavity is arranged in a cylinder cover. The spark plug extends into one end of the flame accelerating cavity. The other end of the flame accelerating cavity communicates with a main combustion chamber. Annular spoilers are arranged in the flame accelerating cavity. The invention further discloses an engine combustion system comprising the cylinder cover portion and a cylinder body portion. The cylinder cover portion comprises the engine ignition mechanism, an intake valve and an exhaust valve. The cylinder body portion comprises a cylinder sleeve, a piston and a crank-link mechanism. A main combustion chamber is defined by the bottom face of the cylinder cover, the cylinder sleeve and the piston. The intake valve and the exhaust valve are connected with the main combustion chamber. According to the engine ignition mechanism, the flame accelerating cavity provided with the multiple annular spoilers is arranged between the spark plug and the main combustion chamber, the combustion process in the main combustion chamber is greatly accelerated, the combustion constant-volume degree is high, the heat efficiency is high, and besides the engine ignition mechanism is simple in design structure, low in cost and high in practicability.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an engine ignition mechanism and an engine combustion system thereof. Background technique [0002] According to different ignition methods, internal combustion engines can be divided into ignition type and compression ignition type, both of which have considerable stock and market. Among them, the spark-ignition engine needs an ignition source provided by the ignition system to trigger the combustion of the combustible mixture in the cylinder. Using spark plugs for single-point spark ignition is the mainstream ignition form used in ignition engines, and spark plugs are usually arranged on the upper end surface of the combustion chamber. [0003] The combustion caused by spark ignition presents a state of flame propagation, slow combustion speed, and low isovolumicity, and in order to avoid knocking, the compression ratio of ignition engines is limited, makin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/24F02F3/26
CPCF02F1/242F02F3/26
Inventor 王志王博远王建昕
Owner TSINGHUA UNIV
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