Unlock instant, AI-driven research and patent intelligence for your innovation.

Oil supply device of compressor and application thereof

A technology for an oil supply device and a compressor, applied in the field of compressors, can solve the problems of difficulty in lubrication, insufficient lubrication, and difficulty in pumping oil from a central oil hole of a crankshaft, and achieves the effects of simple and reasonable structure, low production cost and wide application range.

Inactive Publication Date: 2012-11-07
GUANGDONG MEIZHI COMPRESSOR
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the compression assembly is arranged above and the oil pool is in a low-pressure environment, it becomes difficult to supply oil to the compression assembly, resulting in difficult lubrication, large friction loss, poor sealing, large leakage and poor reliability of moving parts
[0005] In addition, in the compressor with all low-pressure spaces in the shell, the oil pool is in a low-pressure space. Due to the existence of leakage, the pressure at the outlet of the oil hole in the center of the crankshaft leading to each moving part may be higher than the pressure at the oil pool, which is prone to crankshaft failure. Difficulty pumping oil in the center oil hole leads to insufficient lubrication, large friction loss, poor sealing, large leakage and poor reliability of moving parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oil supply device of compressor and application thereof
  • Oil supply device of compressor and application thereof
  • Oil supply device of compressor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] see figure 1 , the oil supply device of the compressor includes a motor arranged in the casing, a compression assembly is arranged above the motor, and an oil pool 32 is arranged below. The compression assembly is composed of a cylinder 23, a piston 25 and a sliding plate 24 arranged in the cylinder 23, a main bearing 21 and an auxiliary bearing 22 supporting an eccentric crankshaft 26, etc. The exhaust device is arranged on the main bearing 21 or the auxiliary bearing 22, and the compression assembly The inner space of the housing is divided into an upper high-pressure chamber and a lower low-pressure chamber by the main bearing 21, the auxiliary bearing 22, the cylinder 23 or other components. The lower end of the long axis of the eccentric crankshaft 26 passes through the inner hole of the main bearing 21 and the inner hole of the motor rotor, and then is inserted into the oil pool 32 .

[0032] The pump oil cover 34 is installed on the end of the eccentric cranksha...

no. 2 example

[0042] see Figure 16 and Figure 2-Figure 15 , is a rotary compressor with high pressure in the inner space of the shell, the refrigerant is compressed by the compression assembly and becomes high-pressure gas, and the high-pressure gas is discharged into the inner space of the shell through the exhaust assembly 15 of the main bearing 21. The compressor includes a motor installed in the casing, a compression assembly is arranged under the motor, an oil pool 32 is arranged under the compression assembly, the lower end of the short shaft of the eccentric crankshaft 26 is inserted into the inner hole of the auxiliary bearing 22, and the end of the lower end of the short shaft is set A pump oil cover 34 is provided. The installation, operation principle and function of the oil pump cover 34 are the same as those of the first embodiment, and will not be repeated.

no. 3 example

[0044] see Figure 17 and Figure 2-Figure 15, is a rotary compressor with low pressure in the inner space of the shell. The low-pressure refrigerant in the inner space of the shell is sucked into the compression assembly, compressed into high-pressure gas, discharged into the oil separator 30b, and then enters the refrigeration cycle system. The compressor includes a motor arranged in the casing, a compression assembly is arranged below the motor assembly, an oil pool 32 is arranged below the compression assembly, the lower end of the short shaft of the eccentric crankshaft 26 is inserted into the inner hole of the secondary bearing 22, and the end of the lower end of the short shaft A pump oil cover 34 is provided. The installation, operation principle and function of the oil pump cover 34 are the same as those of the first embodiment, and will not be repeated.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an oil supply device of a compressor and application thereof. The oil supply device comprises a motor component and a compression component which are arranged in a shell, wherein the bottom of the shell is provided with an oil pool; the internal space of the shell is partitioned into a high-pressure chamber which is positioned on the upper part and a low-pressure chamber which is positioned on the lower part; a central oil hole is formed in an eccentric main shaft; and the tail end of the central oil hole at the lower end of the eccentric main shaft is provided with anoil pump cover for increasing oil supply quantity of the central oil hole. The lower end of the eccentric main shaft along the major axis or the minor axis is provided with the oil pump cover; the oil pump cover is provided with more than one protruding oil bag port; one end of the oil bag port is communicated with the internal part of the oil pump cover, and the other end of the oil bag port is outwardly provided with an opening; and the opening of the oil bag port faces the rotation direction of an eccentric crankshaft. The oil supply device can be used for a refrigerant of HCS and other normal refrigerants, is applicable to a rotary compressor, a scroll compressor, a piston compressor and the like, and has the characteristics of simple and rational structure, low manufacturing cost andwide application range.

Description

technical field [0001] The invention relates to a compressor, in particular to an oil supply device for a compressor and its application. Background technique [0002] In the traditional or currently produced rotary compressor products, all adopt the structure that the internal pressure of the shell is the high pressure side. This structure has the advantage of easy oil supply and lubrication for the oil supply and lubrication of the compression components. However, with the improvement of environmental protection requirements in recent years, the research on environmentally friendly alternative refrigerants has become increasingly urgent due to the destruction of the ozone layer or the greenhouse effect of traditional HCFC or HFC refrigerants. [0003] As an alternative refrigerant to HCFC, such as R22, and HFC, such as R410A or R407C, hydrocarbon refrigerants are the most concerned by the industry. However, when hydrocarbon refrigerants are used in air-conditioning system...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/02F04B53/18
Inventor 高斌
Owner GUANGDONG MEIZHI COMPRESSOR