Electromagnet for actuating a hydraulic valve

Details Electromagnet for actuating a hydraulic valve Electromagnet for actuating a hydraulic valve

2005-01-11

2005-01-11

Bastianelli, John (Department: 3754)

Valves and valve actuation

Electrically actuated valve

With nonelectrical actuator

C335S258000, C335S262000

Reexamination Certificate

active

06840497

ABSTRACT:
An electromagnet (10) for actuating a hydraulic on-off valve (11), has a wet-type configuration and its armature (31) is displaced in a pressure pipe (18) when a volume of oil is switched through a throttling site (35) in such a way that switching speed can be influenced. The electromagnet (10) has a manual emergency actuation device (43) in the pressure pipe (18). If necessary, the actuating bolts (44) of said device can be engaged with a throttle screw (39) by an interlocking connection (45, 42) in order to displace said throttle screw that is arranged in the armature (31). The switching speed of the distributing valve (11) can be easily regulated from the outside when the electromagnets (10) are mounted, without impairing functioning of the manual emergency actuation device.

REFERENCES:
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Patane Abstratcs of Japan vol. 1998, No. 03, Feb. 27, 1998 & JP 09 292049 A, Nov. 11, 1997.

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