Valve for gaseous and/or liquid flow media

Details Valve for gaseous and/or liquid flow media Valve for gaseous and/or liquid flow media

1983-05-11

1985-02-12

Nilson, Robert G.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

1375135, 137DIG8, F16K 1116

Patent

active

044984995

ABSTRACT:
A valve is disclosed for gaseous and/or liquid flow media, in particular a pressure control valve for an exhaust recirculation valve in injection systems in motor vehicles. For the sake of attaining an extremely small opening hysteresis, this valve has a leakage point which is effective between the contact faces of the valve closing member and the valve seat. The suction flow brought about by the leakage point generates a film of flow medium between the contact faces which prevents the complete closure of the valve at a static point on the characteristic valve curve.

REFERENCES:
patent: 3931830 (1976-01-01), Gritz
patent: 4166476 (1979-09-01), Yamanaka
patent: 4337798 (1982-07-01), Zettergren

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