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US 5,388,613 AGranted
Valve with pressure compensation
AssigneeDragerwerk Aktiengesellschaft
InventorEdmund Kruger
Life of this patent
Estimating the term…
Abstract
A valve with pressure compensation via two valve bodies (9, 10), which are arranged on a connecting rod (11 ) in the same direction, and which come to lie on the corresponding valve seats (7, 8) in the closed position in the same direction via deforming zones. The tightness between the valve bodies and the corresponding valve seats is increased, and the closing force required for sealing is reduced by deforming zones located between the upper valve body (9) and the upper valve seat (7), as well as between the lower valve body (10) and the lower valve seat (8) which are designed as pressure pieces (14, 16) yielding differently to the closing force.
Claims12
A valve with pressure compensation, comprising:
- a first valve body;
- a second valve body;
- a valve housing, said first valve body and said second valve body being arranged in said valve housing acting in a common direction;
- outlet openings provided in said valve housing, said outlet openings having flange-like valve seats with said first valve body being seated in a first valve seat and said second valve body being seated in a second valve seat in a closed position, said valve bodies and an inner surface of said valve housing defining a pressure space;
- a first deforming zone located at contact points between said first valve body and said first valve seat and a second deforming zone located at contact points between said second valve body and said second valve seat, said deforming zones being formed as pressure pieces with said first deforming zone yielding differently to a closing force than said second deforming zone, said first valve body is formed as an elastomeric cone with a lip acting as a pressure piece, said lip being attached to said elastomeric cone in a manner of a cantilever, said second valve body having an elastomeric coating at said pressure piece, said elastomeric coating being flatly disposed on a support.
2 more elements
A double seat valve comprising:
- a valve housing defining a first opening and a second opening, said housing having a first seat at said first opening and a second seat at said second opening;
- a first valve head positioned in said first opening of said valve housing and cooperating with said first valve seat to block and open communication between said first opening;
- a second valve head positioned in said second opening of said valve housing and cooperating with said second valve seat to block and open communication between said second opening, said first valve head and said second valve head acting in substantially a same direction;
- a first deforming means positioned between said first valve seat and said first valve head, and for compensating and sealing a fit clearance between said first valve seat and said first valve head, Said first deforming means including an elastomeric lip attached to said first valve head in a manner of cantilever;
- a second deforming means positioned between said second valve seat and said second valve head for compensating and sealing a fit clearance between said second valve seat and said second valve head, said second deforming means includes an elastomeric coating positioned flush on said second valve head, said second deforming means being designed to deform to a different extent than said first deforming means.
2 more elements
A valve with pressure compensation, comprising:
- a first valve body;
- a second valve body;
- a valve housing, said first valve body and said second valve body being arranged in said valve housing acting in a common direction;
- outlet openings provided in said valve housing, said outlet openings having flange-like valve seats with said first valve body being seated in a first valve seat and said second valve body being seated in a second valve seat in a closed position, said valve bodies and an inner surface of said valve housing defining a pressure space;
- a first deforming zone located at contact points between said first valve body and said first valve seat and a second deforming zone located at contact points between said second valve body and said second valve seat, said deforming zones being formed as pressure pieces with said first deforming zone yielding differently to a closing force than said second deforming zone, said first valve body is formed as an elastomeric cone with a lip acting as a pressure piece, said lip being attached to said elastomeric cone in a manner of a cantilever, said second valve body having an elastomeric coating at said pressure piece, said elastomeric coating being positioned flush on a support.
2 more elements
Dependencies are inferred from the claim text.