Torque reduction valve having separate static seal and dynamic seal
AssigneeXomox Corporation
InventorsAlain FUOC, Chris ALMOND, Peter Jeffrey LYLE, Sudhir K. KULKARNI
Life of this patent
Estimating the term…
Abstract
A valve assembly includes a plug extending along a central axis and including a plug body having an external plug surface. The external plug surface tapers radially outwardly in a first direction along the central axis. The valve assembly further includes a sleeve having an internal sleeve surface defining an interior cavity. The internal sleeve surface tapers radially outwardly in the first direction. The plug body is positioned within the interior cavity of the sleeve. The plug is rotatable about the central axis relative to the sleeve, and the plug is also translatable along the central axis relative to the sleeve.
Claims23
A valve assembly comprising:
- (a) a plug extending along a central axis and including a plug body having an external plug surface, wherein the external plug surface tapers radially outwardly in a first direction along the central axis;
- and
- (b) a sleeve having an internal sleeve surface defining an interior cavity, wherein the internal sleeve surface tapers radially outwardly in the first direction,
- wherein the plug body is positioned within the interior cavity of the sleeve, wherein the plug is rotatable about the central axis relative to the sleeve, wherein the plug is translatable along the central axis relative to the sleeve.
A valve comprising:
- (a) a housing including an internal housing surface defining an internal chamber extending along a central axis;
- and
- (b) a valve assembly including:
- (i) a plug extending along the central axis and including a plug body having an external plug surface, and
- (ii) a sleeve positioned within the internal chamber of the housing and fixed against movement relative thereto, the sleeve having:
- (A) an outer sleeve portion including an external sleeve surface configured to sealingly engage the internal housing surface of the housing, and
- (B) an inner sleeve portion at least partially spaced apart from the outer sleeve portion and including an internal sleeve surface defining an interior cavity for rotatably receiving the plug body, wherein the internal sleeve surface is configured to sealingly engage the external plug surface of the plug body.
A method comprising:
- (a) providing a valve, wherein the valve includes:
- (i) a housing having an internal chamber defining a central axis,
- (ii) a sleeve positioned within the internal chamber of the housing and fixed against movement relative thereto, the sleeve including an internal sleeve surface defining an interior cavity, and
- (iii) a plug extending along the central axis and including a plug body, the plug body being positioned within the interior cavity and having an external plug surface, wherein the plug is initially at a first location along the central axis relative to the sleeve such that the external plug surface is spaced apart from the internal sleeve surface;
- and
- (b) translating the plug along the central axis from the first location to a second location relative to the sleeve.
A valve comprising:
- (a) a first static member;
- (b) a second static member secured against movement relative to the first static member;
- (c) a static seal between the first and second static members;
- (d) a dynamic member movable relative to the first and second static members between an open state and a closed state;
- and
- (e) a dynamic seal between the dynamic member and at least one of the first or second static members.
Dependencies are inferred from the claim text.