Valve
OwnerSimon Sheridan, Martin Jarvis +1inventors
InventorsSimon Sheridan, Martin Jarvis, Geraint Huw Morgan
Life of this patent
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Abstract
A valve device includes a body portion having a plurality of openings, a valve seat located within said body portion, an end stop, corresponding to an opening of said body portion, said end stop comprising a port portion through which fluid may flow, and a nozzle, in fluid communication with said port portion, said nozzle configured for sealing against said valve seat and thereby preventing flow through the valve device, the valve device being openable by relative motion of said nozzle with respect to said valve seat, and adjustment means configured to allow independent adjustment of the location of said nozzle with respect to said valve seat.
Claims20
A method of controlling the flow of fluid through a valve device, the valve device comprising:
- a body portion having a plurality of openings,
- a valve seat located within said body portion,
- an end stop, corresponding to an opening of said body portion, said end stop comprising a port portion through which fluid may flow and a nozzle in fluid communication with said port portion, said nozzle configured for sealing against said valve seat and thereby preventing flow through the valve device, the valve device being openable by adjusting the relative position of said nozzle with respect to said valve seat, and
- adjustment means configured to provide adjustment of a position of said end stop with respect to said body portion for controlling the flow of fluid through the valve device;
- wherein the adjustment means comprises a piezoelectric device to apply a mechanical force to said body portion so as to open said valve device;
- said body portion is formed from a material or materials having different thermal expansion properties to the material or materials from which said end stop is formed;
- and
- the method comprises controlling the flow by adjustment of the relative position of said nozzle and said valve seat by altering the temperature of the valve device, or a part thereof.
A method of controlling the flow of fluid through a valve device, the valve device comprising;
- a body portion having a plurality of openings,
- a valve seat located within said body portion,
- an end stop, corresponding to an opening of said body portion, said end stop comprising a port portion through which fluid may flow and a nozzle in fluid communication with said port portion, said nozzle configured for sealing against said valve seat and thereby preventing flow through the valve device, the valve device being openable by adjusting the relative position of said nozzle with respect to said valve seat, and
- adjustment means configured to provide adjustment of a position of said end stop with respect to said body portion for controlling the flow of fluid through the valve device;
- wherein the adjustment means comprises a piezoelectric device to apply a mechanical force to said body portion so as to open said valve device;
- the method comprising controlling the flow by use of said adjustment means by varying a piezoelectric voltage.
A method of controlling the flow of fluid through a valve device, the valve device comprising;
- a body portion having a plurality of openings;
- a valve seat located within said body portion;
- an end stop, corresponding to an opening of said body portion, said end stop comprising a port portion through which fluid may flow and a nozzle in fluid communication with said port portion, said nozzle configured for sealing against said valve seat and thereby preventing flow through the valve device, the valve device being openable by adjusting the relative position of said nozzle with respect to said valve seat;
- adjustment means configured to provide adjustment of a position of said end stop with respect to said body portion;
- and
- wherein the valve device comprises a threaded nut that mates with a thread on the external surface of said body portion, and that engages with said end stop such that a variable force is applicable to the end stop in a direction parallel to a major axis of the body portion;
- wherein the method comprises controlling the flow by use of said adjustment means.
Dependencies are inferred from the claim text.