Double-cylinder rotary compressor

A rotary compressor, double-cylinder technology, applied in the direction of rotary piston/oscillating piston pump components, mechanical equipment, machines/engines, etc., can solve the problem of the decrease of the rigidity of the middle partition, the distance between the main bearing and the auxiliary bearing Increased length, lower reliability and efficiency of the separator, etc., to prevent bending of the crankshaft and deformation of the separator, improve efficiency, and prevent the decline in reliability and efficiency

Inactive Publication Date: 2011-11-09
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the two-cylinder rotary compressor with a discharge device installed on the partition plate, the thickness of the partition plate is increased through a complex configuration of valves and silencers, so that the distance between the shafts of the main bearing and the sub-bearing becomes longer and the partition Rigidity of the plate decreases, therefore, it causes a decrease in reliability and efficiency due to bending of the crankshaft and deformation of the diaphragm

Method used

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Examples

Experimental program
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Embodiment 1

[0053] see Figure 1-Figure 2 , The two-cylinder rotary compressor 1 includes a compression mechanism part 11 installed in the sealed casing 2, and a motor part 12 arranged on the top thereof.

[0054] The compression mechanism part 11 includes a first cylinder 17a and a second cylinder 17b, a first middle partition assembly 22 located between the two cylinders and separating the compression chamber 18a of the first cylinder and the compression chamber 18b of the second cylinder, inside the compression chamber of the cylinder The eccentrically rotating piston 19, the sliding plate 20 synchronously reciprocating with the piston, and the two eccentric shafts 16 on the crankshaft 13 respectively drive the respective piston 19, the main bearing 14 and the auxiliary bearing 15 supporting the crankshaft. A first discharge muffler 27 a and a second discharge muffler 27 b are attached to the main bearing 14 and the sub bearing 15 , respectively.

[0055] The above components are assemb...

Embodiment 2

[0104] In embodiment 1, two flat plates are used to form the sound-absorbing cavity; as Figure 25-Figure 26 As shown, in this embodiment, a sound-absorbing cavity is formed in a flat body. The fourth flat body 23b of the second partition plate assembly 23 is formed using wear-resistant cast iron such as flake graphite. During the casting stage, the muffler cavity 34 can be designed using the core.

[0105] Thereafter, the outer peripheral portion of the fourth flat body 23b is processed simultaneously with the muffler center hole 23a, the second discharge hole 32b, and the valve seat 37. The inner diameter of the muffler center hole 23a is equal to the outer diameter of the second valve housing 23c.

[0106] The valve housing component here is the second valve housing component. The second valve housing 23c in the second valve housing assembly is formed by using the same material as the fourth flat body 23b, or by powder metallurgy or cold forging. After the second valve ...

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Abstract

The invention relates to a double-cylinder rotary compressor. An electric engine section and a compressor section are arranged in a sealed housing. The compressor section comprises: a first cylinder, a second cylinder, a middle partitioning plate assembly arranged between the first cylinder and the second cylinder, a silencing cavity arranged on the middle partitioning plate, and a middle partitioning plate discharging apparatus arranged in the silencing cavity. The middle partitioning plate discharging apparatus comprises: two discharging ports arranged in the silencing cavity, wherein the discharging ports are respectively provided on the first cylinder compressing cavity and the second cylinder compressing cavity; two valve seats respectively arranged on the peripherals of the discharging ports; two discharging valves respectively arranged on the valve seats for opening and closing the discharging ports; a valve spring arranged between the two discharging valves for elastically adjusting the gap between the two discharging valves; cylinder walls or stop columns arranged on the outer sides of the two valve seats for limiting the scopes of the horizontal movements of the discharging valves. The double-cylinder rotary compressor provided by the invention is characterized in that: the rigidness of the middle partitioning plate assembly is high, the thickness of the middle partitioning plate assembly is small, crankshaft bending and middle partitioning plate deformation are not easy to occur, the product is easy to produce, and the application scope of the product is wide.

Description

technical field [0001] The invention relates to a double-cylinder rotary compressor. Background technique [0002] Two-cylinder rotary compressors are indispensable for enlarging air conditioning systems. But, because the discharge gas amount from each cylinder compression chamber increases, as shown in Patent Document 1: Patent Publication Heisei 10-213087, two discharge devices are also set on the partition plate dividing two cylinders, so it is necessary to prevent Efficiency drops due to discharge resistance. [0003] Patent Document 1: Japanese Patent Publication Heisei 10-213087 Rotary Compressor [0004] Patent Document 2: Japanese Patent Publication Heisei 04-036092 High Pressure Dome Rotary Compressor [0005] Patent Document 3: Japanese Patent Publication 2009-079492 Two-stage Rotary Compressor [0006] In the two-cylinder rotary compressor with a discharge device installed on the partition plate, the thickness of the partition plate is increased through a comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C23/00F04C29/06
Inventor 小津政雄李华明
Owner GUANGDONG MEIZHI COMPRESSOR
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