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US 10,094,480 B2Granted
Rotary multi-port valve
OwnerCharles C. Partridge, Sergey Shatalovinventors
Life of this patent
Estimating the term…
Abstract
A rotary multi-port valve having a valve body defining a valve chamber and having a plurality of inlet flow ports each having a stationary seat member therein and having a discharge port. A flow diverter member is supported by a valve stem and a tubular trunnion for rotation within the valve chamber and has a diverter chamber. A piston is hydraulically moveable within the diverter chamber and has driving connection with a diverter valve member is linearly moveable for sealing engagement with a selected stationary seat member. The diverter valve member is selectively retracted to a position completely within the valve chamber to permit selective rotation of the flow diverter member within the valve body to an aligned position with any of the inlet ports of the valve body.
Claims18
A rotary multi-port valve mechanism, comprising:
- a valve body defining a valve chamber and having a plurality of inlet flow ports each having a substantially stationary seat member located therein;
- a discharge port being defined by said valve body;
- a flow diverter member being supported for rotation within said valve chamber and defining a diverter chamber in fluid communication with a selected one of said inlet flow ports and said discharge flow port;
- a diverter valve member having annular nose seals being linearly moveable within said flow diverter member and having a sealing end being linearly moveable within said flow diverter member and having a sealing end supporting a seal member disposed for sealing engagement with said stationary seat member, said diverter valve member being selectively movable to a retracted position completely within said valve chamber permitting selective rotation of said flow diverter member within said valve chamber to an aligned position with a selected one of said plurality of inlet ports;
- a port selector piston member having driving connection with said diverter valve member and being selectively moveable within said diverter valve member by hydraulic pressure to a sealing position locating said diverter valve member in sealing engagement with a selected one of said stationary seat members and to a retracted position locating said diverter valve member and said annular nose seals at a protected position within said valve chamber permitting selective rotation of said flow diverter member within said valve chamber and protecting said diverter valve member and said annular nose seals from contact with said valve body during rotation of said diverter valve member within said valve chamber;
- a piston chamber being located within said flow diverter member;
- a first hydraulic fluid supply being selectively conducted to said piston chamber and applying hydraulic pressure to a first pressure responsive surface area of said port selector piston member and moving said port selector piston member to said sealing position establishing sealing engagement of said diverter valve member with said stationary seat member;
- and
- a second hydraulic fluid supply a being selectively conducted to said piston chamber and applying hydraulic pressure to a second pressure responsive surface area of said port selector piston member and returning said port selector piston member to said retracted position.
6 more elements
A rotary multi-port valve mechanism, comprising:
- a valve body defining a valve chamber and having a discharge flow port and a plurality of entry flow ports each having an internal stationary seat member, said valve body further defining a test port being normally closed by a removable test plug;
- a rotary flow diverter member being supported for rotation within said valve chamber and defining fluid chamber in communication with said valve chamber and said discharge flow port;
- a piston housing being located in substantially fixed relation within said rotary flow diverter member and defining an internal piston sealing surface;
- a diverter valve member having driven connection with said port selector piston member and having a seal member disposed for sealing engagement with a selected one of said stationary seat members upon piston urged movement of said diverter valve member to a sealing position with respect to a selected one of said plurality of inlet ports;
- a hydraulic pressure supply system having first and second supply passages being in fluid communication with said piston housing and causing selective movement of said port selector piston member to said sealing position and to a retracted position;
- a port selector piston member being linearly moveable within said piston housing and defining first and second pressure responsive areas and being selectively moveable within said piston housing by said hydraulic pressure supply system, said piston member having driving connection with said diverter valve member;
- and
- said piston housing member and said diverter valve member being removable from said rotary diverter member and moveable through said test port for repair or replacement after removal of said test plug from said valve body.
5 more elements
Dependencies are inferred from the claim text.