Self-sealing valve assembly
AssigneeAlfred Teves Metallwarenfabrik GmbH & Co. OHG
InventorsAndre F. L. Goossens, Helmut Weisbrod, Ulrich Zutt, Antoine Rottiers, Dalibor Zaviska, Peter Volz
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Abstract
This invention relates to a valve with a valve housing which has several valve components. Sealing surfaces are provided on the circumference of the valve housing which correspond with a valve accommodating body carrying the valve housing. These surfaces are adapted to engage the valve accommodating body where (in dependence on the relative motion of the valve housing in respect of the valve accommodating body) the material volume existing on the circumference of the and plastically displace it into a circumferential recess of the valve housing.
Claims5
A self-sealing valve assembly comprising:
- a valve housing formed of a first material and having a first diameter portion and larger second diameter portion of a predetermined depth and an annular recess defining a shoulder at a transition from the first diameter to the second diameter with the annular recess having a third diameter smaller than the first diameter;
- and
- a valve accommodating body formed of a second material softer than the first material and having a bore with a first diameter portion approximately equal in diameter to the first diameter portion of the valve housing and distal to an outer surface of the valve accommodating body and the bore having a larger second diameter portion of a predetermined length and approximately equal in diameter to the second diameter portion of the valve housing and opened to the outer surface of the valve accommodating body defining a step at a transition from the first diameter portion to the second diameter portion of the valve accommodating body wherein displacement of the valve housing into the valve accommodating body by a predetermined distance after initial engagement between the shoulder and the step displaces a volume of the second material approximately equal to a volume of the annular recess into the annular recess.
Dependencies are inferred from the claim text.