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Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/021976
Kind Code:
A1
Abstract:
In a rotary compressor (1), a lower end plate (160S) has: a reed-valve-type lower discharge valve (200S) that opens and closes a lower discharge hole (190S); a lower-discharge-valve accommodation recess (164S) that extends from the lower discharge hole (190S) in a groove-like manner and that accommodates the lower discharge valve (200S); and a lower-discharge-chamber recess (163S) that is formed so as to overlap with a section of the lower-discharge-valve accommodation recess (164S), said section being close to the lower discharge hole (190S), and that is communicated with a refrigerant passage hole (136). A lower-end-plate cover (170S) is formed in a flat plate shape and is provided with a bulging section (171S) having a section opposed to the lower discharge hole (190S). A lower-end-plate-cover chamber (180S) is formed of the lower-discharge-valve accommodation recess (164S), the lower-discharge-chamber recess (163S), and the bulging section (171S). The volume of the bulging section (171S) is 1/18 to 1/9 of the sum of excluded volumes of an upper compression chamber (133T) and a lower compression chamber (133S).

Inventors:
UEDA, Kenshi (3-3-17 Suenaga, Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
IZUMI, Yasuyuki (3-3-17 Suenaga, Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
Application Number:
JP2018/027394
Publication Date:
January 31, 2019
Filing Date:
July 20, 2018
Export Citation:
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Assignee:
FUJITSU GENERAL LIMITED (3-3-17, Suenaga Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
International Classes:
F04C18/356; F04C23/00; F04C29/00; F04C29/06
Domestic Patent References:
WO2016076064A12016-05-19
Foreign References:
JP2016044600A2016-04-04
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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