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Multi-cylinder rotary compressor

A technology of rotary compressor and compression mechanism, applied in the direction of pump combination, mechanical equipment, machine/engine, etc. for elastic fluid rotary piston type/oscillating piston type, which can solve the trouble of eccentric roller processing, poor reliability and performance Influence, poor assembly, etc.

Inactive Publication Date: 2008-12-31
TOSHIBA CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] In this case, the processing of the divided eccentric roller is troublesome, and if the assembly member is not formed in the peripheral surface of the eccentric roller, smooth rotation cannot be performed, so the assemblability is poor.
Therefore, adverse effects on reliability and performance

Method used

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  • Multi-cylinder rotary compressor

Examples

Experimental program
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Embodiment Construction

[0057] Next, one embodiment of the multi-cylinder rotary compressor of the present invention will be described with reference to the drawings. figure 1 It is a vertical cross-sectional view showing, for example, the internal structure of a multi-cylinder rotary compressor T constituting a refrigeration cycle of a refrigeration device.

[0058] figure 1 Among them, 1 is an airtight casing, and in the lower part of the airtight casing 1, a plurality of compression mechanism parts described later are provided, hereby the first compression mechanism part 2A, the second compression mechanism part 2B and the third compression mechanism Compression mechanism assembly 2 constituted by part 2C, motor part 3 is provided on the upper part of the compression mechanism assembly. These motor parts 3 and the first to third compression mechanism parts 2A to 2C constituting the compression mechanism assembly 2 are connected to each other by a rotary shaft 4 .

[0059] The motor unit 3 incl...

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Abstract

A multi-cylinder rotary compressor, a rotary shaft (4) supported on bearings (9, 11), a motor part (3) connected to the rotary shaft, and first to The 3rd compression mechanism part (2A~2C), each compression mechanism part has: the cylinder room (14a~14c) that will be arranged on the eccentric part (4a~4c) on the rotating shaft and eccentric roller (13a~13c) accommodate; Cylinders (8A to 8C) in the cylinder chamber; blades (15a to 15c) provided in the cylinder, whose front end abuts against the peripheral surface of the eccentric roller and divides the cylinder chamber into two; At least one of the gaps in the parts is set so that the second compression mechanism part that is not in contact with the bearing is larger than the first and third compression mechanism parts that are in contact with the bearing, so that the vibration of the rotating shaft caused by the rotation of the rotating shaft can be reduced. Oscillating to improve compression efficiency.

Description

technical field [0001] The present invention relates to, for example, a multi-cylinder rotary compressor constituting a refrigeration cycle of a refrigeration device, and having three or more sets of compression mechanism parts in the axial direction. technical background [0002] For example, in the compression mechanism of a rotary compressor constituting a refrigeration cycle of a refrigeration device, an eccentric roller is accommodated in a cylinder chamber formed in the inner diameter of the cylinder, and a vane chamber is provided in the cylinder, and the vane is slidably accommodated. The front edge of the vane is pressed by the compression spring to elastically abut against the peripheral surface of the eccentric roller, and the cylinder chamber is divided into two chambers, the suction chamber and the compression chamber, by the vane. [0003] In recent years, a two-cylinder rotary compressor having two sets of the above-described compression mechanism units up and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C23/00
Inventor 小野田泉长谷川益巳后藤进矢高坂元俊加藤久尊里馆康治青木俊公
Owner TOSHIBA CARRIER CORP
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