Pivot actuated sleeve valve
AssigneeFisher Controls International LLC
InventorsMichael W. McCarty, Michel K. Lovell, Douglas P. Gethmann
Life of this patent
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Abstract
A valve assembly has a valve body and a fluid passage through the valve body with an inlet end and an outlet end. A valve seat is defined within the fluid passage. A sleeve is axially slidable within the fluid passage and has an upstream end, a downstream end, and an axial flow passage in communication with the inlet end and the outlet end of the fluid passage. A valve stem is pivotally mounted at a stem pivot spaced radially from the fluid passage. The valve stem is actuable to slide the sleeve between an open position with the downstream end spaced from the valve seat and a closed position with the downstream end borne against the valve seat to selectively control fluid flow through the flow passage to the outlet end.
Claims8
A sleeve valve assembly comprising:
- a valve body;
- a fluid passage through the valve body having an inlet end and an outlet end;
- a valve seat defined within the fluid passage;
- a stem housing extending radially from the valve body;
- a sleeve axially slidable within the fluid passage and having an upstream end, a downstream end, and an axial flow passage in communication with the inlet end and the outlet end of the fluid passage;
- a stem pivot housed within the stem housing;
- and
- a valve stem pivotally mounted at the stem pivot and partly extending through the stem housing, the valve stem being actuable to slide the sleeve between an open position with the downstream end spaced from the valve seat and a closed position with the downstream end borne against the valve seat to selectively control fluid flow through the flow passage to the outlet end, wherein the stem pivot includes a pivot ball carried on the valve stem, a ledge formed in a pivot end of the stem housing, and a cap removably received over the pivot end of the stem housing defining a bearing region and pivotally capturing the pivot ball between the cap and the ledge in the bearing regions.
Dependencies are inferred from the claim text.