Electromagnet

Details Electromagnet Electromagnet

2006-11-07

2006-11-07

Barrera, Ramon M. (Department: 2832)

Valves and valve actuation

Electrically actuated valve

C251S129150, C123S625000, C335S255000, C335S278000

Reexamination Certificate

active

07131630

ABSTRACT:
The invention relates to an electromagnet for actuating a valve. To this end, the electromagnet (28) comprises an armature (58), which can be axially displaced in an armature space (57, 77) and whose axial motion displaces a tappet (29) to the valve. The electromagnet is provided with reflux channel (71.1), which is connected to the armature space (57, 77) and via which the armature space (57, 77) is connected to a tank volume (25) in order to lead away a pressure medium leakage flow that is flowing out of the valve and into the armature space (57, 77).

REFERENCES:
patent: 6357480 (2002-03-01), Oyama
patent: 37 09 474 (1988-03-01), None
patent: 44 17 587 (1995-11-01), None
patent: 197 17 807 (1998-10-01), None
patent: 697 12 162 (2002-04-01), None
patent: WO 97/12150 (1997-04-01), None

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