Fluid control valves
AssigneeLucas Industries public limited company
InventorsHugh W. Redston, James C. Potter
Life of this patent
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Abstract
A fluid control valve comprises a valve member movable in a bore in a valve body. The valve has a stem connected through a resilient member to the armature of an electromagnetic device. The travel of the armature is greater than the movement of the valve member, the additional movement of the armature causing flexure of the resilient member.
Claims5
An electromagnetically operable fluid control valve comprising a valve body, a valve member movable in a bore in the valve body between open and closed positions, a stem extending from the valve member, a collar mounted about said stem, a coiled compression spring mounted about said stem, one end of the coiled compression spring engaging said collar to urge the valve member to an open position as determined by the abutment of said collar with the valve body, a rigid plate secured to said stem and a plate-like resilient member secured to said stem in spaced relation to said rigid plate and on the side thereof remote from the valve member, a hollow axially movable armature having an inwardly directed flange which is located between said rigid plate and said resilient member, a stator structure within said armature, and electrical windings carried by said stator structure, said armature having a travel greater than that of the valve member, whereby when said windings are energised the force exerted on the armature will be transmitted to said valve stem through said resilient member to cause movement of the valve member to the closed position, said resilient member deflecting when the valve member is in the closed position to allow continued movement of the armature to a limit position.
Dependencies are inferred from the claim text.