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Rotating compressor and refrigeration cycle device

A technology of rotary compressor and compression mechanism, which is applied in the direction of rotary piston machinery, rotary piston pump, rotary piston type/oscillating piston type pump components, etc., which can solve the problem of high compatibility between lubricating oil and refrigerant and low oil viscosity and other issues to achieve the effect of ensuring reliability and preventing the reduction of compressor efficiency

Active Publication Date: 2014-02-12
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, using CO as described 2 (carbon dioxide gas), HC (hydrogen carbonate) low-pressure rotary compressor, the compatibility (dissolution) of the lubricating oil and the refrigerant is very large, so the viscosity of the oil will be further significantly reduced

Method used

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  • Rotating compressor and refrigeration cycle device
  • Rotating compressor and refrigeration cycle device
  • Rotating compressor and refrigeration cycle device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The rotary compressor 100 and the refrigeration cycle of Embodiment 1 of the present invention are as figure 1 shown. The rotary compressor 100 is composed of a compression mechanism 4 installed in the inner diameter of the hermetic casing 2, and an electric motor 3 arranged above it. The compression mechanism 4 is made up of the main bearing 25 and the auxiliary bearing 30 fixed in the inner diameter of the cylinder 10 and the housing 2, and they are assembled by screws. The exhaust pipe 6 and the oil injection pipe 61 connected to the outer periphery of the main bearing 25 are connected to the oil separator S. A capillary T is arranged between the oil injection pipe 61 and the oil separator S in order to adjust the amount of oil supplied to the compression chamber. In addition, an air intake pipe 5 is arranged at the upper end of the casing 2, and oil 7 is sealed in an oil pool 8. In addition, the suction pipe 5 may be arranged between the motor 3 and the compressi...

Embodiment 2

[0063] Figure 4 The shown embodiment 2 is a design in which exhaust mufflers are arranged on both sides of the auxiliary bearing 30 and the main bearing 25 . Therefore, the main bearing 25 also requires the exhaust muffler (A) 26 in addition to the exhaust muffler (B) 32 of the sub bearing 30 . Exhaust pipe 6 is just passable in the exhaust muffler of a certain side, but Figure 4 Configured in the exhaust muffler (B) 32, Figure 5 Then, the exhaust pipe 6 is arranged in the exhaust muffler (A) 26 .

[0064] In the main bearing 25 , the mixed refrigerant discharged from the exhaust hole 14 opening to the compression chamber 13 to the exhaust muffler (A) 26 passes through the vane cavity 12 and joins the high-pressure refrigerant of the exhaust muffler (B) 32 from the exhaust pipe 6 Flow out to the oil separator S. Thereafter, the oil was separated and the refrigerant was discharged into the refrigeration cycle in the same manner as in Example 1. In addition, the oil sepa...

Embodiment 3

[0066] Figure 6 Example 3 shown shows that the vane lubrication method and the oil control method of Example 1 can be applied to a 2-cylinder low-pressure rotary compressor.

[0067] The compression mechanism 4 of the 2-cylinder rotary compressor 200 consists of a cylinder (A) 10a and a cylinder (B) 10b each having a compression chamber 13a and a compression chamber 13b, a partition plate 36 disposed therebetween, and a piston 24a provided in each cylinder. Consists of piston 24b, slide plate 20a and slide plate 20b, eccentric shaft 16 for revolving the two pistons, main bearing 25 and sub-bearing 30 for slidingly supporting the eccentric shaft 16 and connecting the two cylinders respectively .

[0068] The main bearing 25 and the sub-bearing 30 are provided with exhaust holes 14 respectively opening in the compression chamber 13a and the compression chamber 13b, and the main bearing 25 and the sub-bearing 30 are respectively equipped with an exhaust muffler and an exhaust m...

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Abstract

The invention discloses a rotating compressor and a refrigeration cycle device. The rotating compressor comprises lubricating oil which is sealed in a sealing shell, and an electrodynamic type motor and a rotation type compressing mechanism arranged in a shell, wherein the inner pressure of the shell and the suction pressure of the shell are same; the compressing mechanism comprises a main bearing and an auxiliary bearing and an exhaust silencer arranged on at least one of the main bearing and the auxiliary bearing, and a refrigerant of the exhaust silencer is discharged from an exhaust pipe arranged on the compressing mechanism through a sliding piece cavity. According to the rotating compressor provided by the embodiment of the invention, a sliding surface of a sliding piece is effectively lubricated, and the oil of the whole compressor is controlled, so that the reliability of the sliding piece is guaranteed, and in addition, a condition that the efficiency of the compressor is lowered because of a lubrication problem is prevented.

Description

technical field [0001] The invention relates to a rotary compressor and a refrigeration cycle device. Background technique [0002] Devices equipped with rotary compressors are widespread all over the world, but almost all of these rotary compressors have high pressure inside the casing. The reason is that the high-pressure rotary compressor has the advantages of energy efficiency, cost, miniaturization, and oil control. On the other hand, from the viewpoint of global environmental protection, CO 2 The adoption of natural refrigerants such as HC and HC has also received great attention. In addition, the plan to use HC refrigerants in rotary compressors is also advancing. [0003] However, CO 2 The operating pressure is very high, and the housing pressure of the high-pressure rotary compressor in the housing needs to be more than 10Mpa, and the wall thickness of the iron housing needs to be at least 7mm, which makes manufacturability and cost a big issue. In addition, HC-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/356F04C29/02F04C29/06
Inventor 小津政雄高斌王玲
Owner GUANGDONG MEIZHI COMPRESSOR
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