Gear compressor

Abstract

This invention discloses a kind of gear type compressor. It includes:moter; gear type compressing part which compresses refrigerants flowed from evaporator by driving power provided from moter; gear type expanding part which expands the refrigerants reabsorbed by condenser after outputting from compressing part. The gear type compressing part includes: main bearing fixed at the underside of electric engine; ring shaped compressing cylinder which connects to the underside of main bearing and forms oil groove on peripheral face; outer gear which is positioned at the inner space of compressing cylinder and can rotate; inner gear which is arranged at the inner side of outer gear and receives driving power provides from electric engine. It rotates by gearing into the outer gear and compresses refrigerants at the same time; compressing board which connects to the underside of compressing cylinder. Lubricating oils, which are provided to each cylinder and outer gear of expanding part and compressing part, diffuse to the whole surface of contact area to prevent mechanical loss due to friction.

Description

technical field [0001] The present invention relates to a gear type compressor, especially in a gear type compressor, which enables the lubricating oil supplied to the interface between each cylinder and the external gear to move more efficiently to the entire surface, preventing the mechanical loss of the entire surface due to friction gear compressor. Background technique [0002] Generally speaking, a compressor is a machine that receives power from a power generating device such as a motor or a turbine to perform compression work on air or refrigerant or other special gases to increase the pressure of the working fluid. Compressors are widely used in home appliances such as air conditioners or refrigerators. [0003] Compressors are divided into positive displacement compressors and dynamic compressors or turbocompressors according to the compression method. [0004] Widely used in large-scale sites is a positive displacement compressor, which uses a compression method...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the size and weight of the machine increase, and the reciprocating compressor has a limit on the rotation speed due to the inertia of the piston, and a large vibration is generated due to the inertia

However, in rotary compressors, in order to change the flow rate at a stable rotation speed, it is necessary to release excess air or alternate suction, and it is difficult to install a stabilizing device in comparison with the increase in delivery pressure caused by excess air.

In addition, if the gap between the parts is not uniform, the compressed gas leaks, and the inherent performance cannot be exerted. When there is wear between the parts, the performance will drop sharply, so it requires highly precise processing.

In addition, the bearing is easily damaged due to the partial load caused by the sudden change of pressure on the bearing.

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