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Hermetic rotary compressor

A compressor and rotor-type technology, applied in the field of rotor-type hermetic compressors, can solve the problems of wear, ablation and supply of the sliding part of the blade

Inactive Publication Date: 2008-07-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, sufficient lubricating oil cannot be supplied to the sliding part of the blade, and there is a risk of abrasion and ablation of the sliding part of the blade.

Method used

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  • Hermetic rotary compressor
  • Hermetic rotary compressor

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Experimental program
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Embodiment approach 1

[0023] figure 1 It is a structural diagram of a refrigeration cycle according to Embodiment 1 of the present invention. In the hermetic rotor compressor 100 , a compressor part 2 and a motor 3 are connected by a rotating shaft 4 in a hermetic casing 1 . The electric motor 3 has a stator 5 and a rotor 6 . The compressor section 2 has a first cylinder 8a and a second cylinder 8b above and below the partition plate 7, respectively. On top of the first cylinder 8a, a bearing bracket 9 and a valve cover 10a are fixed. Below the second cylinder 8b, a bearing bracket 11 and a valve cover 10b are fixed.

[0024] The rotary shaft 4 has integrally formed eccentric portions 4a, 4b having a phase difference of 180°. The eccentric portions 4a, 4b have the same diameter, and eccentric wheels 12a, 12b are fitted on the outer peripheral surface, and constitute a piston.

[0025] as in figure 2 As shown in , in each cylinder 8a, 8b, cylinder chambers 13a, 13b, vane grooves 14a, 14b and ...

Embodiment approach 2

[0045] exist Figure 6Embodiment 2 of the present invention is shown in . An oil passage hole 32 opening in the lubricating oil atmosphere in the airtight case 1 is provided on the partition plate 7 . Lubricating oil is supplied into the oil supply groove 19 via the oil passage hole 32 of the partition plate 7 .

Embodiment approach 3

[0047] exist Figure 7 Embodiment 3 of the present invention is shown in FIG. Oil passage holes 32 and 20 that open in the lubricating oil atmosphere in the airtight housing 1 are respectively provided on the partition plate 7 and the bearing bracket 11 . Lubricating oil is supplied into the oil supply groove 19 via the oil passage hole 32 of the partition plate 7 and the oil passage hole 20 of the bearing bracket 11 .

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Abstract

A hermetic rotary compressor operates two cylinders simultaneously in the regular operation; however it halts operating one of the cylinders when it selects an operation with a half capacity. A vane room of the halted cylinder is air-tightly sealed with respect to lubricant atmosphere in a hermetic case. An oil-supplying groove is provided to a vane groove of the halted cylinder, and lubricant is supplied to the oil-supplying groove in order to lubricate the vane.

Description

technical field [0001] The present invention relates to a rotary hermetic compressor which can be used in an air conditioner or a refrigerator, and particularly relates to a compressor which can change the air conditioning capacity or refrigeration capacity. Background technique [0002] Usually, in the rotary hermetic compressor, since the compressed refrigerant gas is sent into the sealed casing, the sealed casing is a high-pressure atmosphere. A piston consisting of an eccentric is housed in the cylinder of the compressor. The front end of the vane is pressed by a spring to be in pressure contact with the surface of the piston. [0003] The cylinder is divided into a suction space and a discharge space by vanes. The suction pipe is connected to the suction space, and the discharge space is opened in the airtight casing. [0004] Japanese Patent Application Laid-Open Publication No. 1-247786 discloses a rotor-type hermetic compressor, which has two cylinders, which can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/356
Inventor 绫亨野洲敏治松永宽
Owner PANASONIC CORP