Electromagnetically actuatable valve

Details Electromagnetically actuatable valve Electromagnetically actuatable valve

2005-12-20

2005-12-20

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Balanced valve

C251S129020, C303S119200

Reexamination Certificate

active

06976665

ABSTRACT:
An electromagnetically actuatable valve for hydraulic control devices in motor vehicles is embodied as a pressure-equalized seat valve in a mode of construction comprising a hydraulic part with a valve dome and an electrical part that can be slipped onto the valve dome. In a magnet valve that is normally open, the tubular tappet that supports the closing member is supported at one point in a first bearing point, in terms of the longitudinal direction, that is embodied as a slide bearing, and a bearing ring that forms the sealing point accomplishes the hydraulic pressure equilibrium with the effective sealing diameter of the closing member that together with the valve seat forms the second bearing point. With the valve, very short switching times, in particular less than 0.5 ms, can be achieved with an economical mode of construction.

REFERENCES:
patent: 5401087 (1995-03-01), Goossens
patent: 5645325 (1997-07-01), Mueller et al.
patent: 5649748 (1997-07-01), Oehler et al.
patent: 5683151 (1997-11-01), Friedow et al.
patent: 6086164 (2000-07-01), Oehler et al.
patent: 6152420 (2000-11-01), Hohl
patent: 6415820 (2002-07-01), Gluf, Jr.

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