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Patent Searching and Data


Title:
HERMETIC COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/123609
Kind Code:
A1
Abstract:
This hermetic compressor is provided with: a hermetic container in which a refrigerant suction pipe is connected to a cylindrical body section; and a compression element contained in the hermetic container, the compression element having a circular cylinder which has formed inside the inner wall thereof a cylinder chamber comprising a suction chamber and also comprising a compression chamber, the compression element also having an upper bearing which closes an opening at one end of the cylinder and which rotatably supports a crankshaft connected to an electric drive element and extending through the cylinder. The upper bearing has a disk section in contact with the one end of the cylinder, the disk section having formed therein: a communication hole having one end connecting to the refrigerant suction pipe, and the other end communicating with the cylinder chamber; and at least one through-hole which is formed closer to the outer peripheral side than the cylinder chamber of the cylinder in a plan view and which extends in a direction parallel to the crankshaft. The disk section has a plurality of circumferentially arranged welding sections which are affixed by welding to the body section of the hermetic container. The at least one through-hole is formed on the straight line connecting the center of the disk section and at least one of the welding sections.

Inventors:
IZUMI, Akikazu (1-13-5 Kudankita, Chiyoda-k, Tokyo 73, 〒1020073, JP)
IYANAGI, Tomohiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/045939
Publication Date:
June 27, 2019
Filing Date:
December 21, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F04C18/356; F04C29/00
Foreign References:
JP2015197046A2015-11-09
JPH10318170A1998-12-02
JP2006336463A2006-12-14
JP2014152749A2014-08-25
JPH11324958A1999-11-26
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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