Patent ID: 6575192
Filing Date: 2003-06-10
Classification: F02B,Y02T,Y10T

Abstract:
A check valve, comprising:a ring shaped carrier member having first and second opposed sides, an annular ring groove disposed in said carrier member and opening at said second side, and a plurality of first orifices disposed in said carrier member and opening into said annular ring groove, wherein the first side of said carrier member having a supply groove disposed therein and opening at said first side of the carrier member and said plurality of first orifices of the carrier member opening into said supply groove; a ring shaped stop member having first and second opposed sides and a plurality of first orifices disposed in said stop member and opening at said first side, and said first side at least partially engaging said second side of the carrier member; and a ring member movably disposed in the annular ring groove of said carrier member and movable between a first position at which said ring member being adapted to block fluid communication between the plurality of first orifices in the carrier and said stop member and a second position at which said ring member passes fluid between the plurality of first orifices in the carrier and said stop member.