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

Rotation type compressor and cycle refrigeration device having same

A technology of rotary compressors and compression devices, which is applied in the field of refrigeration cycle devices and rotary compressors, can solve the problems of reduced volumetric efficiency of the compression chamber, deformation of the compression device, compression efficiency and reliability issues, etc., and achieve good manufacturability , reduce compressor noise, good versatility

Active Publication Date: 2014-05-28
GUANGDONG MEIZHI COMPRESSOR
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the pressure difference between the inside and outside of the exhaust muffler, the compression device integrated with the exhaust muffler may be deformed, so there are problems in compression efficiency and reliability.
In addition, the exhaust muffler is high temperature, so the temperature rise of the low-pressure gas in the shell may reduce the volumetric efficiency of the compression chamber, so pay attention

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
  • Rotation type compressor and cycle refrigeration device having same
  • Rotation type compressor and cycle refrigeration device having same
  • Rotation type compressor and cycle refrigeration device having same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] figure 1 A rotary compressor 100 and an external refrigerant circuit 4 connected to the rotary compressor 100 according to the first embodiment of the present invention are shown. figure 2 The details of the oil separator 45 equipped in the compression device 5 and the muffler chamber 50 and the oil supply to the compression chamber 13 are shown. and, image 3 express figure 1 The plan view of the XX section.

[0058] The casing 1 is composed of a cylindrical casing 2a, an upper end plate 2b and a lower end plate 2c which are circumferentially welded to the cylindrical casing 2a at the upper and lower open ends of the cylindrical casing 2a. The rotary compressor 100 is composed of a compression device 5 housed in a housing 1, an electric motor 18, a muffler chamber 50 formed by welding the outer end plate 3 on the outer side of the lower end plate 2c, and the oil contained therein. The separating device 45 and the oil supply pipe 40 are constituted. In addition,...

Embodiment 2

[0084] The range in which the high-pressure oil 8a in the muffler chamber 50 can supply oil to the compression device 5 is limited to a place with a lower pressure than that of the muffler chamber 50 . That is, the compression chamber 13a (pressure range lower than the high pressure) and the vane chamber 21 ( Figure 6 ), the sliding surface of the slide 20. In addition, oil can also be supplied to housing 2 (low pressure side), suction pipe and suction channel.

[0085] Figure 6 The shown embodiment 2 is a design for supplying the high-pressure oil in the high-pressure oil pool 8 to the sealed vane cavity 21 . In a low-pressure rotary compressor, the vane chamber 21 that must be sealed is usually the high-pressure side. The gas leaking from the vane chamber 21 (high pressure) to the compression chamber 13 (low pressure to high pressure) makes the pressure of the vane chamber 21 lower than that of the muffler chamber 50, so the oil in the high pressure oil pool 8 can be su...

Embodiment 3

[0089] Figure 7 The illustrated embodiment 3 is a design for supplying oil to the above-mentioned low-pressure side. The oil supply pipe 40 connected to the lower end plate 2c has holes for the high-pressure oil pool 8 and the low-pressure oil pool 7 . The oil in the high-pressure oil pool 8 is discharged to the low-pressure oil pool 7 and merges with the low-pressure oil 7a. The low-pressure oil 7a supplies oil to the compression chamber 13 through the low-pressure oil supply pipe 23 . Therefore, an oil circulation system between the high-pressure oil pool 8 and the low-pressure oil pool 7 and the compression chamber 13 can be established.

[0090] The oil circulation system can increase the oil supply (such as 6%) from the low-pressure oil supply pipe 23 to the compression chamber 13, and return the separated oil (such as 5%) in the oil separator 45 to the low-pressure oil pool 7. That is, the oil separated in the oil separator 45 can be directly returned to the low-pres...

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 a rotation type compressor and a cycle refrigeration device having the same. The rotation type compressor comprises a shell, a compressing device, an oil separating device and an oil feeding pipe; one end of the shell is provided with a sealed muffling cavity; the compressing device is arranged in the shell, the compressing device comprises a cylinder component, a sub-bearing, and a muffler, the cylinder component comprises a compressing cavity, the sub-bearing is arranged on the lower surface of the cylinder component, the muffler is arranged on the sub-bearing so as to form a gas-discharging and muffling cavity, which communicates with the compressing cavity, with the sub-bearing, the gas-discharging and muffling cavity is communicated with the muffling cavity so as to introduce the cooling medium in the gas-discharging and muffling cavity into the muffling cavity; the oil separating device is connected to the muffling cavity so as to carry out an oil-gas separation treatment on the cooling medium; one end of the oil feeding pipe is communicated with the oil separating device or the muffling cavity; and the other end of the oil feeding pipe is connected to the compressing cavity so as to discharging the oil separated from the gas into the compressing cavity. The rotation type compressor can avoid the deformation of compressing device.

Description

technical field [0001] The invention relates to the field of refrigeration, in particular to a rotary compressor and a refrigeration cycle device having the same. Background technique [0002] In the shell high-pressure rotary compressor, the oil stored in the shell can supply the refrigeration cycle to the compression chamber due to the pressure difference between the shell (high pressure side) and the compression chamber (low pressure to high pressure) and through the gap between sliding parts. The refrigerant circulation ratio of the system is about 5-7% oil. In addition, the discharged oil-refrigerant mixed gas can be separated inside the shell, and the amount of oil discharged to the refrigeration cycle can be easily reduced to less than 1%. [0003] The shell low-pressure rotary compressor has a low pressure inside the shell, so oil cannot be supplied to the compression chamber through the pressure difference. Therefore, since the pressure of the suction hole of the ...

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 Applications(China)
IPC IPC(8): F04C29/02F04C29/06F04C29/00
Inventor 小津政雄高斌王玲
Owner GUANGDONG MEIZHI COMPRESSOR