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Transparent piston head on top of piston in optical engine and method of use thereof

An optical engine, piston head technology, applied in engine control, engine components, machines/engines, etc., can solve problems such as difficulty in changing the compression ratio, difficult combustion chamber simulation, etc., to improve safety and stability, and reduce stress concentration. Effect

Active Publication Date: 2022-04-12
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention solves the problem that the piston top of the current optical engine mentioned in the above-mentioned background technology is flat or dimpled, and it is difficult to simulate a larger special-shaped combustion chamber of ω-shaped or bowl-shaped; in addition, the compression of the traditional optical engine The ratio has been fixed after leaving the factory, and it is relatively difficult for users to change the compression ratio by themselves. A transparent piston head on the top of the piston in an optical engine and its use method are proposed, which can realize a changeable piston top surface to meet user research The different shapes of the combustion chamber affect fuel combustion; secondly, the piston head in the present invention can flexibly adjust the compression ratio of the engine, and the user can conveniently and quickly set the value of the required compression ratio

Method used

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  • Transparent piston head on top of piston in optical engine and method of use thereof
  • Transparent piston head on top of piston in optical engine and method of use thereof

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specific Embodiment approach 1

[0025] Specific implementation mode one: see Figure 1-2 This embodiment will be described. The transparent piston head at the top of the piston in the optical engine described in this embodiment includes a piston head cover base 1, a gasket, a piston head and an arc-shaped quartz glass 5, and the piston head is fixedly connected above the piston cover base 1 , the piston head includes a piston head cover and an arc-shaped quartz glass 5, the piston head cover is wrapped with an arc-shaped quartz glass 5, the top of the arc-shaped quartz glass 5 is convex, and the top surface of the piston head cover is an annular concave Pit, cooperates with arc-shaped quartz glass 5 to form the top surface of the piston, and the top surface of the piston cooperates with the cylinder head to form a bowl-shaped or ω-shaped combustion chamber; There are gaskets, the thickness of which can be replaced and adjusted.

[0026] The piston crown includes a shallow ω-shaped piston crown 4 and a deep...

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Abstract

The invention proposes a transparent piston head on the top of the piston in an optical engine and its use method. The piston head of the piston head is fixedly connected above the base of the piston head cover. There is curved quartz glass, the top of the curved quartz glass is convex, and the top surface of the piston head cover is a ring-shaped pit, which cooperates with the curved quartz glass to form the top surface of the piston, and the top surface of the piston cooperates with the cylinder head to form a bowl-shaped or ω-shaped Combustion chamber; gaskets are installed at the bottom of the arc-shaped quartz glass and the base of the piston head cover, and the thickness of the gaskets can be replaced and adjusted. It solves the technical problem that it is difficult for the current optical engine to simulate the ω-shaped or bowl-shaped larger and special-shaped combustion chamber, and it is relatively difficult for the user to change the compression ratio. The different shapes of the chamber affect fuel combustion; and the piston head can flexibly adjust the compression ratio of the engine.

Description

technical field [0001] The invention relates to a transparent piston head at the top of a piston in an optical engine and a using method thereof, belonging to the technical field of internal combustion engine testing. Background technique [0002] At present, with the increasingly stringent emission requirements of countries all over the world and the improvement of people's awareness of environmental protection, the development of efficient and clean internal combustion engines has attracted more and more attention. The combustion process of an internal combustion engine is an extremely complex physical and chemical process, including fuel injection, atomization, mixing, ignition and other processes. In order to improve the utilization rate of fuel and the thermal efficiency of the engine, it is necessary to have a sufficient understanding of the internal combustion process of the fuel in the engine. At present, the piston top of the optical engine is flat or slightly conc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D15/04F02F3/00F02F3/26F02F3/28F02B75/04
CPCF02F3/0023F02F3/0084F02F3/26F02F3/28F02B75/044F02D15/04
Inventor 王洋周小虎张健刘龙张琦曹群周佳颖周慧东
Owner HARBIN ENG UNIV