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US 2002/0112760 A1Published application
Valve assembly with multiple mode actuators
AssigneeAmpo, S. Coop.
InventorJuan Jose Goni Usabiaga
Life of this patent
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Abstract
A multiple mode valve assembly including valve actuators equipped with a combination of a shaft (4) and a spindle (5), coaxial and immobilised in an axial direction, but capable of rotating freely one with respect to the other, so that by means of the spindle (5), through a threaded nut assembly (6) and the pertinent motor (9), the longitudinal displacement of the gate (3) is produced in valve opening and shutting operations, whilst by means of direct application of a rotary movement to the shaft (4), which does not affect the spindle (5), from a second motor (23), the gate (3) turns on the valve seat (2), in the shut position, producing a friction effect and consequent self-cleaning of the seal.
Claims24
A multiple mode valve assembly, comprising:
- a valve body defining a valve seat;
- a displaceable valve gate received within the valve body and cooperating with the valve seat to form a seal;
- a valve shaft having a pair of ends, a first end coupled to the valve gate, said valve shaft axially displacing the valve gate relative to the valve seat, and rotationally displacing the valve gate relative to the valve seat;
- a spindle element having a pair of ends, said spindle element rotatably coupled to a second end of the valve shaft;
- said spindle shaft being non-rotatably coupled to the valve body;
- a first drive motor coupled to the valve body and operatively coupled to the spindle element to axially displace the spindle element and the valve shaft relative to the valve seat;
- and
- a second drive motor coupled to the valve body and operatively coupled to the shaft element to rotate the valve shaft so that the valve gate rotates relative to the valve seat.
5 more elements
A multiple mode valve assembly, comprising:
- a valve body defining a valve seat;
- a displaceable valve gate received within the valve body and cooperating with the valve seat to form a seal;
- a first valve displacement element coupled to the valve gate, said valve displacement element axially displacing the valve gate relative to the valve seat, and rotationally displacing the valve gate relative to the valve seat;
- a second valve displacement element rotatably coupled to the first valve displacement element, said second valve displacement element being non-rotatably coupled to the valve body;
- a first drive motor coupled to the valve body and operatively coupled to the first valve displacement element to rotationally displace the first valve displacement element relative to the valve seat;
- and
- a second drive motor coupled to the valve body and operatively coupled to the second valve displacement element to axially displace the first valve displacement element and the second valve displacement element relative to the valve seat.
4 more elements
A method of operating a valve assembly, said method including the steps of
- providing a valve body including a valve seat;
- providing a displaceable valve gate received within the valve body and cooperating with the valve seat to form a seal;
- providing a first valve displacement element coupled to the valve gate, said valve displacement element axially displacing the valve gate relative to the valve seat, and rotationally displacing the valve gate relative to the valve seat;
- providing a second valve displacement element, said second valve displacement element rotatably coupled to the first valve displacement element, said second valve displacement element being non-rotatably coupled to the valve body;
- providing a first drive motor coupled to the second valve displacement element to axially displace the second valve displacement element and the first valve displacement element relative to the valve seat;
- providing a second drive motor coupled to the first valve displacement element to rotate the first valve displacement element so that the valve gate rotates relative to the valve seat;
- and
- operating the first drive motor and the second drive motor to axially and rotationally displace the valve gate relative to the valve seat to impart a frictional force between the valve gate and valve seat, said frictional force removing debris from between the valve gate and the valve seat.
5 more elements
A multiple mode valve assembly, comprising:
- a valve body defining a valve seat;
- a displaceable valve gate received within the valve body and cooperating with the valve seat to form a seal;
- a first valve displacement element coupled to the valve gate, said valve displacement element axially displacing the valve gate relative to the valve seat, and rotationally displacing the valve gate relative to the valve seat;
- a second valve displacement element rotatably coupled to the first valve displacement element;
- said second valve displacement element being non-rotatably coupled to the valve body;
- a first drive element operatively coupled to the first valve displacement element to rotationally displace the first valve displacement element relative to the valve seat;
- and
- a second drive element operatively coupled to the second valve displacement element to axially displace the first valve displacement element and the second valve displacement element relative to the valve seat.
5 more elements
Dependencies are inferred from the claim text.