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Patent Searching and Data


Title:
SEALED ROTARY COMPRESSOR, AND REFRIGERATION AND AIR CONDITIONING DEVICE PROVIDED WITH SAID SEALED ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/146031
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a sealed rotary compressor which achieves a reduction in leakage loss into a cylinder from sliding gaps along which a vane that abuts an outer circumference of a roller which rotates eccentrically within the cylinder and that partitions the inside of the cylinder into a suction chamber and a compression chamber reciprocates, and which also achieves a reduction in mechanical losses of the vane. To this end, according to the present invention there are formed a vane accommodating groove (6a) of a cylinder (6) in which a vane (11) slides in a reciprocating manner, and a vane oil holding portion (20) having a sealed construction which communicates with end surfaces of an upper bearing (7) and a lower bearing (8) while partially enclosing a vane outer circumference, wherein the vane oil holding portion (20) is made to communicate with lubricating oil (19) stored in a hermetically sealed container (1). According to the present invention, since lubricating oil (119) is always maintained in the vane oil holding portion (20) when the compressor is operating, it is possible to achieve a reduction in leakage of refrigerant from vane (11) sliding gaps and a reduction in mechanical losses, thereby improving the performance and reliability of the compressor.

Inventors:
KOUSOKABE Hirokatsu (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TSUBONO Isamu (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KISHI Yasuhiro (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
TSUCHIYA Naohiro (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
TAKESAWA Kenji (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
SUZUKI Kosuke (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
Application Number:
JP2018/002229
Publication Date:
August 01, 2019
Filing Date:
January 25, 2018
Export Citation:
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Assignee:
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (16-1, Kaigan 1-chome Minato-k, Tokyo 22, 〒1050022, JP)
International Classes:
F04C18/356; F04C29/02
Foreign References:
JPS61145388A1986-07-03
JPS61106992A1986-05-24
JPH02163489A1990-06-22
JPH04191491A1992-07-09
JPH08277792A1996-10-22
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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