Magnetic valve

Details Magnetic valve Magnetic valve

2002-11-07

2003-11-25

Hirsch, Paul J. (Department: 3754)

Valves and valve actuation

With non-fluid retarder

C123S568210, C251S129150

Reexamination Certificate

active

06651951

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention is based on a magnet valve according to the general class of claim
1
.
A magnet valve is made known in DE 199 01 090 A1 that has a sealing and damping device with an elastic region that, due to the adjacent vacuum, exerts a force against the direction of the closing valve during operation. This increases the force required to open the valve.
ADVANTAGES OF THE INVENTION
In contrast, the magnet valve according to the invention having the characterizing features of claim
1
has the advantage that a force produced by the existing pressure differential in the valve and that acts on the elastic region of a sealing and damping device is offset in simple fashion. This results in a better characteristic curve of the flow over the existing pressure differential.
Advantageous further developments and improvements of the magnet valve named in claim
1
are made possible by means of the measures listed in the dependent claims.
It is particularly advantageous when the elastic region of the sealing and damping device is designed in the shape of a semi-arc or a semicircle.


REFERENCES:
patent: 5370355 (1994-12-01), Rembold et al.
patent: 5423602 (1995-06-01), Takahashi
patent: 5762097 (1998-06-01), Hettinger et al.
patent: 5878991 (1999-03-01), Krimmer et al.
patent: 6058913 (2000-05-01), Busato
patent: 6119725 (2000-09-01), Shinobu et al.
patent: 6321725 (2001-11-01), Krimmer et al.
patent: 199 01 090 (2000-07-01), None
Borsch-Technische Unterrichtung Motormanagement Motonic:, Second Edition, Aug. 1993, pp. 48-49.

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