Hydraulic swing damping system

Details Hydraulic swing damping system Hydraulic swing damping system

2005-05-03

2005-05-03

Pezzuto, Robert E (Department: 3671)

Excavating

Ditcher

Condition responsive

C060S468000, C091S420000

Reexamination Certificate

active

06886278

ABSTRACT:
An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.

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