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US 12,163,601 B2Granted
Seal and valve apparatus having such a seal, as well as method for sealing a valve apparatus
AssigneeIllinois Tool Works Inc.
InventorTorsten Hauk
Life of this patent
Estimating the term…
Abstract
A valve apparatus, in particular a ball valve apparatus, is provided. The apparatus includes a housing device having at least one fluid port, a closure body, wherein the closure body includes an axis of rotation about which the closure body can be rotated in a direction of rotation in order to release and close the fluid port, wherein the fluid port includes a seal for sealing abutment against the closure body. The seal includes a first and a second sealing lip, wherein the sealing lips are configured such that, during operation, only one seal sealingly abuts against the closure body.
Claims10
A valve apparatus, comprising:
- a housing device having at least one fluid port,
- a closure body, wherein the closure body comprises an axis of rotation about which the closure body can be rotated in a direction of rotation in order to release and close the fluid port, wherein the fluid port comprises a seal for sealing abutment against the closure body;
- wherein the seal comprises a first sealing lip and a second sealing lip, wherein the first and second sealing lips are configured such that, during operation, at least during an operating state, only one of the first sealing lip or the second sealing lip sealingly abuts against the closure body;
- wherein the seal is configured such that, as a function of a pressure difference between a port side of the valve apparatus and a valve side of the valve apparatus, the first sealing lip and the second sealing lip alternately abut sealingly against the closure body in such a way that, when the port side is exposed to a higher pressure than the valve side in a first operating state, only the first sealing lip sealingly abuts against the closure body, and when the valve side is exposed to a higher pressure than the port side in a second operating state, only the second sealing lip sealingly abuts against the closure body;
- wherein the first sealing lip and the second sealing lip are arranged at an angle greater than 120° with respect to one another.
2 more elements
A valve apparatus, comprising:
- a housing device having at least one fluid port,
- a closure body, wherein the closure body comprises an axis of rotation about which the closure body can be rotated in a direction of rotation in order to release and close the fluid port, wherein the fluid port comprises a seal for sealing abutment against the closure body;
- wherein the seal comprises a first sealing lip and a second sealing lip, wherein the first and second sealing lips are configured such that, during operation, at least during an operating state, only one of the first sealing lip or the second sealing lip sealingly abuts against the closure body;
- wherein the seal is configured such that, as a function of a pressure difference between a port side of the valve apparatus and a valve side of the valve apparatus, the first sealing lip and the second sealing lip alternately abut sealingly against the closure body in such a way that, when the port side is exposed to a higher pressure than the valve side in a first operating state, only the first sealing lip sealingly abuts against the closure body, and when the valve side is exposed to a higher pressure than the port side in a second operating state, only the second sealing lip sealingly abuts against the closure body;
- wherein the closure body is approximately spherical or spherically segmented or approximately cylindrical, wherein the first and second sealing lips alternately abut sealingly against a curved surface of the closure body;
- wherein the first sealing lip extends in a first direction approximately orthogonally to a through-flow direction of the fluid port and approximately parallel to the curved surface of the closure body and the second sealing lip extends approximately in a second direction, opposite to the first direction, and approximately parallel to the curved surface of the closure body.
3 more elements
A valve apparatus, comprising:
- a housing device having at least one fluid port,
- a closure body, wherein the closure body comprises an axis of rotation about which the closure body can be rotated in a direction of rotation in order to release and close the fluid port, wherein the fluid port comprises a seal for sealing abutment against the closure body;
- wherein the seal comprises a first sealing lip and a second sealing lip, wherein the first and second sealing lips are configured such that, during operation, at least during an operating state, only one of the first sealing lip or the second sealing lip sealingly abuts against the closure body;
- wherein the seal is configured such that, as a function of a pressure difference between a port side of the valve apparatus and a valve side of the valve apparatus, the first sealing lip and the second sealing lip alternately abut sealingly against the closure body in such a way that, when the port side is exposed to a higher pressure than the valve side in a first operating state, only the first sealing lip sealingly abuts against the closure body, and when the valve side is exposed to a higher pressure than the port side in a second operating state, only the second sealing lip sealingly abuts against the closure body;
- wherein at least one release recess for releasing the fluid port is configured in a closure body surface, wherein the first sealing lip extends in a direction of the release recess of the closure body and wherein the second sealing lip extends away from the release recess.
2 more elements
Dependencies are inferred from the claim text.