Title:
OPENING REGULATION VALVE AND VARIABLE CAPACITY COMPRESSOR EMPLOYING IT
Document Type and Number:
WIPO Patent Application WO/2007/142021
Kind Code:
A1
Abstract:
An opening regulation valve in which a sudden change in suction characteristics can
be avoided by gradually varying the cross-section of a passage even when a transition
is made to minute flow rate. A variable capacity compressor employing it is also
provided. The opening regulation valve disposed in a channel allowing communication
between the suction port and the suction chamber of a compressor and performing
variable control on the opening area of the channel comprises a tubular case member
(41) having a circumferential wall provided with a plurality of through holes
(43), a valve element (42) contained in the case member (41) slidably in the axial
direction and urged by a reset spring (50) in the valve close direction, and a stopper
portion (55) for regulating the movement of the valve element (42) in the valve
closing direction so as to leave the opening region of the through hole (43) on
the upstream side of the valve element (42).
Inventors:
ADACHI YOSHIHIRO (JP)
TAKAHASHI TOMOYASU (JP)
SATO YOSHIE (JP)
TAKAHASHI TOMOYASU (JP)
SATO YOSHIE (JP)
Application Number:
PCT/JP2007/060397
Publication Date:
December 13, 2007
Filing Date:
May 22, 2007
Export Citation:
Assignee:
VALEO THERMAL SYS JAPAN CO (JP)
ADACHI YOSHIHIRO (JP)
TAKAHASHI TOMOYASU (JP)
SATO YOSHIE (JP)
ADACHI YOSHIHIRO (JP)
TAKAHASHI TOMOYASU (JP)
SATO YOSHIE (JP)
International Classes:
F04B39/10; F04B27/08; F04B27/14
Foreign References:
| JP2001289177A | 2001-10-19 | |||
| JP2004027846A | 2004-01-29 |
Attorney, Agent or Firm:
OHNUKI & KOTAKE (8-8 Shibuya 1-chom, Shibuya-ku Tokyo 02, JP)
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