Document Type and Number:
Japanese Patent JPH0432257
Kind Code:
B2
Abstract:
A pressure override control which utilizes pump output flow for destroking of a variable displacement pump to minimize loss of power and generation of heat and which includes modifications to the displacement control valve for the pump and, particularly, the cross connection of displacement-controlling servo motors when the displacement control valve is in a neutral position with blocking of communication of said servo motors to a displacement control pressure and drain whereby the pump cannot be positioned in a maximum displacement position in response to certain system malfunctions in the power override control circuitry.
Application Number:
JP10991680A
Publication Date:
May 28, 1992
Filing Date:
August 12, 1980
Export Citation:
International Classes:
F04B49/10; F04B49/00; F04B49/08; F16H39/00; F16H61/42; F16H61/433; F16H61/439; F16H61/46
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