rotary compressor

A technology of rotary compressors and rotors, which is applied in the direction of rotary piston machines, rotary piston pumps, mechanical equipment, etc. It can solve the problems of reduced reliability of the crankshaft, noise, abnormal vibration of the compressor, etc., and achieve the effect of ensuring reliability

Active Publication Date: 2016-02-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the two-cylinder rotary compressor described in Patent Document 1 has problems in that the reliability of the crankshaft is lowered, and abnormal vibration and noise are generated in the compressor.

Method used

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Embodiment approach 1

[0018] Figure 1 to Figure 6 is a diagram showing Embodiment 1, figure 1 is a longitudinal sectional view of the twin-cylinder rotary compressor 100, figure 2 and image 3 is a longitudinal sectional view of the compression mechanism part 3 of the two-cylinder rotary compressor 100, Figure 4 yes figure 2 The Z-Z section view in, Figure 5 It is a figure showing the procedure of assembling the first piston 11a to the crankshaft 4 when the relief shape 11a-1 is provided at both axial ends of the inner diameter of the first piston 11a, Figure 6 is a comparison Figure 5 and Figure 7 of the graph ( Figure 6 (a) represents a comparative example, Figure 6 (b) represents this embodiment).

[0019] Below, use Figure 1 to Figure 6 The twin-cylinder rotary compressor 100 according to Embodiment 1 will be described.

[0020] use figure 1 The configuration of the two-cylinder rotary compressor 100 will be described. A motor 2 including a stator 2 a and a rotor 2 b and...

Embodiment approach 2

[0080] In Embodiment 1, the relationship between the inner diameter 10 a of the separator 10 and the first piston 11 a and the second piston 11 b is not particularly mentioned. The inner diameter 10 a of the separator 10 and the first piston 11 a and the second piston 11 b may be formed in, for example, the following relationship. In addition, items that are not particularly described in the second embodiment are the same as those in the first embodiment, and the same functions and configurations will be described using the same reference numerals.

[0081] Figure 8 It is a figure which shows Embodiment 2, and is a longitudinal cross-sectional view of the compression mechanism part 3 of the twin-cylinder rotary compressor 100. As shown in FIG.

[0082] Such as Figure 8 As shown, if the distance from the axial center of the intermediate shaft 4e to the inner peripheral surface of the inner diameter 10a of the separator 10 (that is, the radius of the inner diameter 10a of th...

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PUM

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Abstract

PURPOSE: A rotary compressor is provided to obtain the reliability of a crank shaft and improving the output and efficiency. CONSTITUTION: A rotary compressor comprises a motor, a crank shaft, a plurality of cylinders, and a partitioning plate(10). The motor includes a stator and a rotator. The crank shaft including a main shaft, a sub shaft, a plurality of eccentric units, and an intermediate shaft(4e) is driven by the motor. The cylinder includes a cylindrical penetration hole, and the eccentric units are arranged in the penetration hole so that the compressive chamber is formed. The partitioning plate includes a cylindrical penetration hole, where the intermediate shaft is arranged, and partitions compressive chambers of the adjacent cylinders.

Description

technical field [0001] The present invention relates to a rotary compressor for compressing refrigerant gas used in the refrigerating cycle of refrigerating and air-conditioning devices such as air conditioners and refrigerators. Background technique [0002] There are known a multi-cylinder rotary compressor that compresses low-pressure refrigerant gas into high-pressure refrigerant gas by using each of a plurality of compression chambers, and a multi-cylinder rotary compressor that sequentially compresses low-pressure refrigerant gas by using a plurality of compression chambers to generate high-pressure refrigerant. Multistage rotary compressor for gases. In such a compressor having a plurality of compression chambers, the crankshaft includes: a plurality of eccentric portions arranged in the cylinder; and an intermediate shaft provided between adjacent eccentric portions. In addition, in such compressors, the following structure has been proposed in the past: the eccentr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C23/00F04C29/00
CPCF04C18/07F04C18/356F04C23/001F04C23/008F04C29/0021F04C2210/26F04C2240/40Y10S415/00Y10S417/902
Inventor 新井聪经谷真男佐藤幸一
Owner MITSUBISHI ELECTRIC CORP
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