Title:
EXHAUST GAS RECIRCULATION VALVE
Document Type and Number:
Japanese Patent JP2003172211
Kind Code:
A
Abstract:
To provide an EGR valve capable of increasing section area of an EGR flow passage, preventing a valve element from being a resistance of flow of recirculation gas, reducing generation of turbulence behind the valve element, and rarely having chattering of the valve element and a valve seat under a condition that the valve element is slightly opened.
This valve includes a valve body having at least one valve seat formed inside and a valve element having a curved surface capable of slidingly contacting the valve seat with rotating in the valve body. A flow passage is preferably formed in the valve element and a rotating shaft of the valve element is preferable off-set from an axial line of the valve seat.
Inventors:
UEDA TAKAHIRO
HATTORI TAKASHI
AKIYAMA SABURO
HATTORI TAKASHI
AKIYAMA SABURO
Application Number:
JP2001372587A
Publication Date:
June 20, 2003
Filing Date:
December 06, 2001
Export Citation:
Assignee:
HITACHI METALS LTD
HITACHI VALVE LTD
HITACHI VALVE LTD
International Classes:
F02M25/07; (IPC1-7): F02M25/07