A Valve
AssigneeFrese A/S
InventorDavid Nadji
Life of this patent
Estimating the term…
Abstract
A valve comprises a valve housing with a valve chamber having an internal chamber wall. A plurality of ports are opening into the valve chamber and a valve body is movable to optionally seal one ports. An endless resilient sealing member situated in a sealing member groove is sealing between the valve body and the inner chamber wall. The sealing member groove has a cross-section defining a cavity and an opening. The sealing member is situated in the cavity, the opening is more narrow than a cross-sectional dimension of the sealing member, and at least one channel is provided connecting the cavity of the sealing member groove and surroundings of the valve body.
Claims24
A valve, comprising:
- a valve housing with a valve chamber, said valve chamber having an internal chamber wall;
- a plurality of ports opening into the valve chamber;
- a valve body movable for optionally sealing one of the plurality of ports relative to the valve chamber;
- and
- an endless resilient sealing member situated in a sealing member groove for sealing between the valve body and the inner chamber wall;
- wherein:
- the sealing member groove has a cross-section defining a cavity and an opening;
- the sealing member is situated in the cavity;
- the opening is more narrow than a cross-sectional dimension of the sealing member;
- and
- at least one channel is provided connecting the cavity of the sealing member groove and surroundings of the valve body.
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Dependencies are inferred from the claim text.