Variable-displacement sliding vane type automobile air conditioner compressor

Abstract

The invention discloses a variable-displacement sliding vane type automobile air conditioner compressor. The automobile air conditioner compressor consists of a rotor, a sliding vane, an air cylinder, end covers, a sliding sleeve, a sliding sleeve positioning device and a sliding sleeve driving device, wherein the rotor is supported on the front end cover and the rear end cover; the sliding sleeve, the sliding sleeve positioning device and the sliding sleeve driving device are arranged at the upper end of the sliding vane. The invention discloses a variable-displacement sliding vane type automobile air conditioner compressor. The automobile air conditioner compressor has a simple structure and a variable-displacement output function; the mechanical efficiency of the compressor is greatly improved and the service life of the compressor is prolonged by effectively reducing the friction loss and the abrasion of the compressor.

Description

technical field [0001] The invention relates to a compressor, in particular to a variable-displacement vane type automotive air-conditioning compressor, which belongs to the technical field of compressors. Background technique [0002] The air conditioner compressor is the heart of the automobile air-conditioning system, and it is the power to promote the continuous circulation of refrigerant in the air-conditioning system. It plays the role of transporting refrigerant vapor and ensuring the normal operation of the refrigeration cycle. Currently, vane compressors are widely used as automotive air-conditioning compressors because of their small size, light weight, and simple structure. This type of compressor is composed of a rotor, a cylinder, a sliding vane and an end cover, etc. Its operating characteristic is to use the rotating centrifugal force to throw the sliding vane out of the rotor chute, and the outer end of the sliding vane slides against the cylinder surface to ...

AI Technical Summary

Problems solved by technology

However, the disadvantages of these two methods are: during the entire working period of the compressor, no matter whether the variable displacement function is activated or not, all of its slides are always in contact with the cylinder profile and there is a high relative movement speed, so the friction The situation is relatively bad. Under normal circumstances, the mechanical friction loss of the compressor accounts for 29% of the total power consumption, and 87% of the mechanical friction loss occurs in the contact between the sliding plate and the cylinder bore wall.

The above defects have seriously affected the service life and mechanical efficiency of the vane compressor

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