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 (JP)
IZUMI YASUYUKI (JP)
IZUMI YASUYUKI (JP)
Application Number:
PCT/JP2018/027394
Publication Date:
January 31, 2019
Filing Date:
July 20, 2018
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
F04C18/356; F04C23/00; F04C29/00; F04C29/06
Domestic Patent References:
| WO2016076064A1 | 2016-05-19 |
Foreign References:
| JP2016044600A | 2016-04-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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