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US 2002/0170603 A1Published application
Damped valve
OwnerChristopher J. Cerovichinventor
Life of this patent
Estimating the term…
Abstract
A damped poppet valve is disclosed. The valve has a valve element movable into and out of engagement with a valve seat to open and close the valve. A damping piston attached to the valve element is slidably received within a damping chamber along a path of travel toward and away from the valve seat. The chamber has an orifice which is small relatively to the cross-sectional area of the piston. The piston forces fluid through the orifice as it moves along the path of travel, thereby damping motion of the valve element.
Claims29
A damped valve comprising:
- a valve element;
- a valve seat for said valve element, said valve element being movable into and out of engagement with said seat to open and close said valve;
- a biasing member engaging said valve element and biasing it into engagement with said seat;
- a damping piston attached to said valve element, said piston projecting away from said valve seat;
- and
- a damping chamber within which said piston is slidably received, said piston moving within said chamber along a path of travel extending toward and away from said valve seat, said damping chamber having an orifice which is small relatively to the cross sectional area of said piston, said orifice being positioned along said path of travel away from said valve seat, said piston forcing fluid within said chamber through said orifice and thereby damping motion of said valve element as the piston moves along said path of travel away from and toward the valve seat.
3 more elements
A damped poppet valve, comprising:
- a valve seat;
- a valve element movable into and out of engagement with said valve seat substantially perpendicularly thereto to open and close said valve;
- a biasing member engaging said valve element and biasing it into engagement with said valve seat;
- a housing positioned in spaced relation to said valve seat, said housing defining an elongated chamber therein oriented coaxially with said valve seat, said housing having an opening at one end of said chamber facing said valve seat and an orifice at another end thereof;
- and
- a piston attached to said valve element and oriented coaxially with said chamber, said piston being sized to pass through said opening and substantially block said chamber, said piston being movable lengthwise within said chamber upon motion of said valve element, said chamber and piston cooperating to guide motion of said valve element relatively to said valve seat, said piston pumping fluid within said chamber through said orifice into and out of said chamber and thereby damping motion of said valve element.
3 more elements
A damped valve, comprising:
- a valve seat;
- a valve element movable into and out of engagement with said valve seat to open and close said valve;
- a biasing member engaging said valve element and biasing it into engagement with said valve seat;
- an elongated damping chamber having an opening at one end and an orifice at another end thereof;
- and
- a piston attached to said valve element and sized to pass through said opening and substantially block said chamber, said piston being movable lengthwise within said chamber upon motion of said valve element, said chamber and said piston cooperating to guide motion of said valve element relatively to said valve seat, said piston forcing fluid through said orifice into and out of said chamber and thereby damping motion of said valve element.
3 more elements
Dependencies are inferred from the claim text.