Ball valve system with ball mounted seal
AssigneeHamilton Sundstrand Corporation
InventorsAugust M. Coretto, Scott W. Simpson
Life of this patent
Estimating the term…
Abstract
A ball valve includes a housing and has an inlet port, an outlet port and a central ball chamber. A ball member is received within the ball chamber and has a shaft connected to a motor such that the ball member can be rotated. The ball member is movable between a closed position at which it blocks fluid connection between the inlet port and the outlet port and to an open position at which a central passage in the ball member communicates the inlet port to the outlet port. A seal is mounted for movement with the ball member to provide a seal against the housing. A ball valve system is also disclosed.
Claims22
A ball valve comprising:
- a housing, having an inlet port, an outlet port and a central ball chamber;
- a ball member received within the ball chamber and having a shaft connected to a motor such that the ball member can be rotated, the ball member being movable between a closed position at which it blocks fluid connection between the inlet port and the outlet port and to an open position at which a central passage in the ball member communicates the inlet port to the outlet port;
- a seal mounted for movement with the ball member to provide a seal against the housing, said seal mounted in a ditch formed in one of the main valve body and the end cap, and the ditch and seal having the same general cross-sectional shape such that the seal does not move relative to the main valve body;
- and
- the seal sealing against the housing at a seal area, and the seal area being fixed to the housing.
(canceled)
A ball valve system comprising:
- a source of fluid connected to a ball valve inlet port, and a use for fluid from the source of fluid connected to a ball valve outlet port;
- a ball valve including a housing, having a housing inlet port, a housing outlet port and a central ball chamber, a ball member received within the ball chamber and having a shaft connected to a motor such that the ball member can be rotated, the ball member being movable between a closed position at which it blocks fluid connection between the housing inlet port and the housing outlet port and to an open position at which a central passage in the ball member communicates the housing inlet port to the housing outlet port, a seal mounted for movement with the ball member to provide a seal against the housing, said seal mounted in a ditch formed in the main valve body, and the ditch and seal having the same general cross-sectional shape such that the seal does not move relative to the main valve body;
- and
- the seal sealing against the housing at a seal area, and the seal area being fixed to the housing.
(canceled)
18-20. (canceled)
Dependencies are inferred from the claim text.