Gas valve with resilient seat
First Claim
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1. A gas valve comprising:
- a valve body having a valve cavity, wherein the valve cavity is defined by a valve cavity wall;
a valve member disposed within the valve cavity, the valve member comprising a first disk and a second disk;
a first groove formed within the valve cavity wall proximate the first disk;
a second groove formed within the valve cavity wall proximate the second disk;
a first elastomeric seal disposed within the first groove;
a second elastomeric seal disposed within the second groove;
wherein the first disk contacts the first elastomeric seal and the second disk contacts the second elastomeric seal when the valve member moves into the closed position;
wherein at least one of the first elastomeric seal and the second elastomeric seal are structured to help center the valve member relative to the first elastomeric seal and/or the second elastomeric seal; and
wherein the first elastomeric seal is substantially softer than the second elastomeric seal such that the first elastomeric seal may compress further in order to provide a better seal, while the second elastomeric seal may provide sufficient resistance to prevent excessive deformation and/or crushing of the first elastomeric seal.
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Abstract
A gas valve having a valve member disposed within a valve cavity, and an elastomeric valve seat extending from a valve cavity wall into the valve cavity. The valve member is movable between an open position in which the valve member does not engage the resilient valve seat thereby permitting gas to flow through the gas valve, and a closed position in which the valve member does engage the resilient valve seat thereby preventing gas to flow through the gas valve. In some embodiments, the elastomeric valve seat extends radially into the valve cavity from a groove formed in the valve cavity wall.
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Citations
8 Claims
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1. A gas valve comprising:
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a valve body having a valve cavity, wherein the valve cavity is defined by a valve cavity wall; a valve member disposed within the valve cavity, the valve member comprising a first disk and a second disk; a first groove formed within the valve cavity wall proximate the first disk; a second groove formed within the valve cavity wall proximate the second disk; a first elastomeric seal disposed within the first groove; a second elastomeric seal disposed within the second groove; wherein the first disk contacts the first elastomeric seal and the second disk contacts the second elastomeric seal when the valve member moves into the closed position; wherein at least one of the first elastomeric seal and the second elastomeric seal are structured to help center the valve member relative to the first elastomeric seal and/or the second elastomeric seal; and wherein the first elastomeric seal is substantially softer than the second elastomeric seal such that the first elastomeric seal may compress further in order to provide a better seal, while the second elastomeric seal may provide sufficient resistance to prevent excessive deformation and/or crushing of the first elastomeric seal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification