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rotary compressor

A compressor and rotary technology, applied in the direction of rotary piston machinery, rotary piston pump, mechanical equipment, etc., can solve the problem of not being able to supply oil

Active Publication Date: 2016-01-20
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there is a problem that oil cannot be supplied to the sliding surface between the bush and the circular groove well even if the groove-side oil reservoir is formed on the bush.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Deformed example 2－

[0108] exist Figure 7 In Modification 2 of the illustrated embodiment, unlike the above-mentioned embodiment, the groove-side oil storage portion 3 of the swing bush 45 is constituted by the circumferential groove 3 extending horizontally along the curved side surface 6 of the swing bush 45 . . That is, the groove-side oil storage portion 3 of the swing bush 45 extends along the sliding direction of the swing bush 45 relative to the groove portion 48 . Both ends of the circumferential groove 3 communicate with the outside of the groove portion 48 of the pistons 40a, 40b.

[0109] According to this modification 2, since the extending direction of the groove-side oil storage portion 3 of the swing bush 45 is aligned with the moving direction of the swing bush 45, the lubricating oil in the groove-side oil storage portion 3 is smoothly drawn. to the outside of the groove portion 48 . Cooling of the sliding surface between the swing bush 45 and the groove portion 48 can be fur...

Deformed example 3－

[0113] exist Figure 8 In Modification 3 of the illustrated embodiment, unlike Modification 2 of the above-mentioned embodiment, the groove-side oil storage portion 3 of the swing bush 45 is a circumference extending horizontally along the curved side surface 6 of the swing bush 45 . To the groove 3, only one end of the circumferential groove 3 is open, and the other end is closed. As described above, even when only one end of the circumferential groove 3 is opened, the lubricating oil in the groove-side oil storage portion 3 can be smoothly discharged to the outside of the groove portion 48 .

[0114] - Modification 4 of Embodiment -

[0115] exist Figure 9 In Modification 4 of the illustrated embodiment, unlike the above-mentioned embodiment, the top of the curved side surface 6 of each swing bush 45a, 45b is cut from the end surface of the swing bush 45a, 45b to the bottom of the oil supply passage 1. near the side. As a result, only one end of the groove-side oil rese...

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PUM

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Abstract

The rotary compressor includes a cylinder, a piston, and a pair of bushes (45a, 45b) sandwiching a vane (35) integrated with the cylinder from both sides to support the vane ( 35). At least one of the pair of bushes (45a, 45b) includes an oil supply path (1), a blade side oil reservoir (2) and a groove side oil reservoir (3). The flat side (7) of the sleeve (45a, 45b) is continuously formed to the curved side (6), the blade side oil reservoir (2) is formed on the flat side (7) of the bush (45a, 45b) and the oil supply passage One end of (1) is open to the vane side oil storage part (2), the groove side oil storage part (3) is formed on the curved side surface (6) of the bushing (45a, 45b), and the oil supply passage (1 ) is open to the groove side oil storage portion (3) and the groove side oil storage portion (3) is wider than the blade side oil storage portion (2).

Description

technical field [0001] The invention relates to a rotary compressor, in particular to a solution for suppressing abnormal wear and seizure of the rotary compressor. Background technique [0002] Heretofore, rotary compressors are known which comprise a bush which supports a piston which rotates eccentrically in a cylinder chamber of a cylinder. In addition, the above-mentioned rotary compressor includes a rotary compressor in which an oil supply passage and an oil storage portion are formed in a bush as disclosed in Patent Document 1. As shown in FIG. [0003] The rotary compressor in Patent Document 1 is a rolling piston compressor. In this rolling piston compressor, a circular groove into which a bush fits is formed in the cylinder, and the vane, which is supported by the bush and can move forward and backward, is integrally formed with the piston. By means of this vane, the cylinder chamber of the cylinder is divided into a high-pressure chamber and a low-pressure chamb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/32F04C29/02
CPCF04C18/322F04C29/028F04C18/045F04C2240/56F04C29/02F04C18/32F04C18/063
Inventor 稻田幸博外岛隆造芝本祥孝佐多健一
Owner DAIKIN IND LTD
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