CAPACITY CONTROL VALVE - EAGLE IND CO LTD

Title:

CAPACITY CONTROL VALVE

Document Type and Number:

WIPO Patent Application WO/2007/119380

Kind Code:

A1

Abstract:

A capacity control valve comprises a valve main body, a valve element, a pressure-sensitive body, a solenoid portion, and an auxiliary communication path. The valve main body has a first valve chamber communicated with a first communication path, a second valve chamber having a second valve seat surface for a valve hole and communicated with a second communication path, and a third valve chamber communicated with a third communication path and having a third valve seat surface. The valve element has a second valve portion having an intermediate communication path communicated with the first valve chamber and the third communication path and provided closely to the second valve seat surface to open and close the valve hole between the first valve chamber and the second valve chamber, a third valve provided closely to the third valve seat surface operating reversely to the second valve portion and opening and closing the communication between the intermediate communication path and the third communication path, and a first valve portion opening and closing in the same direction as and in conjunction with the second valve. The pressure-sensitive body has a first valve seat portion provided at a free end closely to the first valve portion and opening and closing the communication between the first valve chamber and the intermediate communication path. The solenoid portion makes the valve element operate according to current. The auxiliary communication path is provided at the valve element in the first valve chamber or/and at the valve seat portion and makes it possible to communicate between the first valve chamber and the intermediate communication path.

More Like This:

WO/2012/121383	POWER SUPPLY DEVICE FOR VACUUM PUMP
JPS54128801	PUMP STARTER

Inventors:

IWA TOSHIAKI (JP)
CHO RYOSUKE (JP)
HIRATA ICHIRO (JP)

Application Number:

PCT/JP2007/055280

Publication Date:

October 25, 2007

Filing Date:

March 15, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

EAGLE IND CO LTD (JP)
IWA TOSHIAKI (JP)
CHO RYOSUKE (JP)
HIRATA ICHIRO (JP)

International Classes:

F04B49/06; F04B27/14

Foreign References:

JP2003322086A	2003-11-14
JP2001153044A	2001-06-05
JP2003254246A	2003-09-10
JP2003322086A	2003-11-14

Other References: