Hydraulic directional valve

Details Hydraulic directional valve Hydraulic directional valve

2011-06-14

2011-06-14

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Balanced valve

C251S129150

Reexamination Certificate

active

07959128

ABSTRACT:
An electromagnetic actuating unit (10) of a hydraulic directional control valve (9) is provided having an armature (18) which is arranged such that it can be axially displaced within an armature space (30), and includes a pole core (29) which is arranged in a receptacle (27a) and delimits the armature space (30) in a movement direction of the armature (18). Constructions are provided in order to avoid deposits on a guide surface of the armature (18), as a result of which the dynamics and the response behavior of the actuating unit (10) are increased and hysteresis effects and the risk of a malfunction of the actuating unit are minimized.

REFERENCES:
patent: 5467963 (1995-11-01), Crofts et al.
patent: 5483930 (1996-01-01), Moriya et al.
patent: 6062823 (2000-05-01), Kawaguchi et al.
patent: 6289921 (2001-09-01), Neuhaus et al.
patent: 6315268 (2001-11-01), Cornea et al.
patent: 6498416 (2002-12-01), Oishi et al.
patent: 6722627 (2004-04-01), Murao et al.
patent: 2005/0081810 (2005-04-01), Isobe et al.
patent: 3006644 (1981-09-01), None
patent: 9107436.3 (1991-10-01), None
patent: 4104219 (1992-08-01), None
patent: 19817319 (1999-10-01), None
patent: 10211467 (2003-09-01), None
patent: 10238840 (2004-03-01), None
patent: 10355502 (2005-06-01), None
patent: 2005251915 (2005-09-01), None

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