Pressure limiting valve with reduced differential area

A pressure limiting valve comprises a valve closing body which comprises a valve closing surface which together with a first valve seat opposing the valve closing surface forms a first seal seat and a valve closing body orifice, which is surrounded by a second valve seat which together with a closin...

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Bibliographische Detailangaben
Hauptverfasser: Schniederjan, Reinhold, Gepraegs, Markus
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A pressure limiting valve comprises a valve closing body which comprises a valve closing surface which together with a first valve seat opposing the valve closing surface forms a first seal seat and a valve closing body orifice, which is surrounded by a second valve seat which together with a closing head configured on an axially displaceable valve bolt forms a second seal seat and with a spring plate which is connected to the valve bolt and axially displaceable therewith, and a first return spring clamped between the spring plate and the valve closing body, which pretensions the valve bolt against the second valve seat configured on the valve closing body and a second return spring which pretensions a valve unit against the first valve seat. In the valve bolt a longitudinal bore is provided extending over the entire axial length of the valve bolt.