Abex Corporation

Cecil E Adams

Ellis H Born

Leo H Dillon

David L Thurston

A horsepower limiter control for an axial piston pump provides a simple adjustment for setting the maximum horsepower the pump can provide and automatically adjusts the product of working pressure and maximum pump displacement to maintain the set horsepower. The horsepower limiter control operates to reduce the displacement of the pump when working fluid pressure exceeds the setting of the sequence valve.

Horsepower limiter control for a variable displacement pump

In a hydraulic system having a plurality of variable displacement pumps driven by a prime mover, each pump has a variable ratio input device connected to a load sensing means. Each variable ratio input device automatically reduces the displacement of its respective pump by the same proportion when the prime mover is overloaded irrespective of the displacement setting of the pump and automatically increases the displacement of its pump by the same proportion up to the set displacement when the prime mover is not overloaded.

Control system for variable displacement pumps

A control for an axial piston type variable displacement fluid energy translating device has an auxiliary control device which connects to a manual control and provides a variety of operating functions for the fluid energy translating device.

Control system for axial piston fluid energy translating device

A low friction seal assembly for a fluid energy translating device seals a pair of pressure fluid chambers from one another. The assembly is mounted in a movable member of the device and has an elastic member which mechanically and hydraulically biases a seal member into engagement with the walls of the device.

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Columbus, OH, United States of America

Cecil E Adams