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Sealing device used for micro rotor engine

A rotary engine and sealing device technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of easy wear of radial sealing sheets, increase life and efficiency, reduce wear and eccentric wear, and reduce pressure. poor effect

Active Publication Date: 2017-02-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that the radial sealing sheet in the micro-rotor engine is easy to wear, the invention discloses a sealing device for the micro-rotor engine. The technical problem to be solved is to reduce the pressure of the bottom gas and the top gas of the radial sealing device. Poor, so that the sealing device can not only ensure the radial sealing but also reduce the wear of the radial sealing plate

Method used

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  • Sealing device used for micro rotor engine
  • Sealing device used for micro rotor engine
  • Sealing device used for micro rotor engine

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Embodiment

[0021] Such as figure 1 , 2 , 3, and 4, this embodiment discloses a sealing device for a micro-rotary engine, including a top sealing block 1 , a coupling spring 2 , a bottom sealing block 3 and a pretension spring 4 .

[0022] The top of the top sealing block 1 is arc-shaped, and the middle part of the arc is in contact with the cylinder wall during work. Bosses for fixing the connecting spring 2 are processed on both sides of the bottom, and bosses on both sides of the bottom are respectively processed for connecting with the bottom. The cantilever piece in contact with the sealing block 3 has a groove processed in the middle part of the bottom. Inside the top sealing block 1 is processed a ventilation hole for reducing the pressure difference of the gas. The upper port of the ventilation hole is opened on the outer side of the middle part of the arc in contact with the cylinder wall, and the upper ports are respectively opened at 1 / 2 of the semicircle on both sides of the ...

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Abstract

The invention discloses a sealing device used for a micro rotor engine, and belongs to the field of micro rotor engines. The sealing device comprises a top sealing block, a connection spring, a bottom sealing block and a pre-tightening spring. The sealing device is changed into a split type, the connection spring stretches and contracts through the gas pressure difference, a ventilation hole way of the top sealing block and a ventilation hole way of the bottom sealing block communicate, so that gas at the bottom of the bottom sealing block flows towards a low-pressure combustion chamber, and the gas pressure at the bottom of the bottom sealing block is reduced. Through adjustment on the overlapping area of a lower port of the ventilation hole way of the top sealing block and an upper port of the ventilation hole way of the bottom sealing block, the changing speed of the pressure difference of the top and the bottom of the sealing device can be adjusted. According to the sealing device, the pressure difference of the bottom gas and the top gas of the radial sealing device can be reduced, accordingly, the sealing device can guarantee radial sealing, meanwhile, abrasion of a radial sealing sheet can be reduced, the service life of the engine is prolonged, and the efficiency of the engine is improved.

Description

technical field [0001] The invention relates to a sealing device for a micro-rotor engine, which belongs to the field of micro-rotor engines. Background technique [0002] With the development of MEMS, it has become a research hotspot to develop micro-energy systems with small volume, light weight, high energy density and continuous operation. Rotary engines have attracted widespread attention due to their simple structure, stable operation, low vibration, and ease of miniaturization. Due to the high rotational speed, the radial seals in micro-rotary engines are much larger than those in regular-sized engines and are prone to wear. Therefore, it is very necessary to invent a sealing device that can reduce the rapid wear of the radial sealing plate. Contents of the invention [0003] Aiming at the technical problem that the radial sealing sheet in the micro-rotor engine is easy to wear, the invention discloses a sealing device for the micro-rotor engine. The technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3284
CPCF16J15/3284
Inventor 刘金祥左正兴张帅张岩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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