Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/058827
Kind Code:
A1
Abstract:
Provided is a compressor having a structure that allows vacuuming work to be performed in the same way as before and that is able to suppress flow of liquid refrigerant and oil from an intake passage to the outside of the compressor. A compressor 100 is provided with a valve device 30 comprising a first regulation valve 40 and a second regulation valve 60 that regulate the degree of opening of an intake passage L11. The first regulation valve 40 regulates the degree of opening of a first passage 41, and the second regulation valve 60 regulates the degree of opening of a second passage 61 that branches off from the upstream area of the first passage 41 and that reaches an intake chamber H1. Biasing force for biasing a first valve body 44 of the first regulation valve 40 in a valve closing direction is set such that, when a differential pressure ΔP is less than a predetermined value C, the first valve body 44 closes the first passage 41. Biasing force for biasing a second valve body 62 of the second regulation valve 60 in a valve closing direction is set such that, when air collides with a reception surface 67, a valve-opened state in which the second valve body 62 opens the second passage 61 is maintained, and when the liquid refrigerant collides with the reception surface 67, the second valve body 62 closes the second passage 61.
Inventors:
TAGUCHI YUKIHIKO (JP)
Application Number:
PCT/JP2018/030593
Publication Date:
March 28, 2019
Filing Date:
August 13, 2018
Export Citation:
Assignee:
SANDEN AUTOMOTIVE COMPONENTS CORP (JP)
International Classes:
F04B39/10; F04C29/12
Foreign References:
| JPH0637581U | 1994-05-20 | |||
| JP2006207464A | 2006-08-10 | |||
| JPH04219489A | 1992-08-10 | |||
| JP2002257046A | 2002-09-11 | |||
| JPH10159768A | 1998-06-16 | |||
| US20110126924A1 | 2011-06-02 | |||
| US20030235509A1 | 2003-12-25 |
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