Regulating device for hydrostatic piston machines

Details Regulating device for hydrostatic piston machines Regulating device for hydrostatic piston machines

2007-02-06

2007-02-06

Lazo, Thomas E. (Department: 3745)

Motors: expansible chamber type

Working member position feedback to motive fluid control

Bias-type input and feedback signal means

C060S426000

Reexamination Certificate

active

10514548

ABSTRACT:
The invention relates to a regulating device for hydrostatic piston machines consisting of an actuating piston (2) which can be removed between two end positions which can be impinged upon by actuating pressure exerted thereon in an opposite direction. An actuating pressure regulating valve (5) is used to regulate the actuating pressure. The actuating regulating valve (5), which is used to regulate the actuating pressure, comprises a regulating piston which can be shifted from a neutral position and which can be impinged upon with a regulating force which is dependent on the position of the actuating piston (2). The regulating force is directed counter to a control force acting upon the regulating piston (6) and the regulating force is zero when the regulating device (1) is in a rest position. When the regulating device (1) is in a rest position, the regulating piston (6) is in a neutral position and the actuating piston (2) is a specific end position.

REFERENCES:
patent: 3817033 (1974-06-01), Appel et al.
patent: 4559778 (1985-12-01), Krusche
patent: 4599050 (1986-07-01), Ishizaki et al.
patent: 4722186 (1988-02-01), Louis et al.
patent: 4756157 (1988-07-01), Appel
patent: 5160245 (1992-11-01), Geringer
patent: 6283721 (2001-09-01), Gollner
patent: 3404534 (1985-09-01), None
patent: 198 42 029 (2000-03-01), None
German Technical Description, Linde Hydraulik, issued 1984, pp. 1-17.
German Data Publication, Linde Hydraulik, issued Apr. 2000, pp. 1-20.

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