Title:
A fluid pressure control system for move cargo handling devices
Document Type and Number:
Japanese Patent JP5981639
Kind Code:
B2
Abstract:
A fluid power control system for load handling mobile equipment includes a pair of hydraulic actuators for moving respective cooperating load-engaging members selectively toward or away from each other, or in a common direction, at respective asynchronous speeds to selectively attain either synchronous or asynchronous respective positions of the actuators. The actuators have sensors enabling a controller to monitor their respective movements and correct unintended differences in the actuators' respective movements, such as unintended differences in relative intended positions, speeds, or rates of change of speeds. Respective hydraulic valves responsive to the controller separately and nonsimultaneously decrease respective flows through the respective actuators to more accurately and rapidly correct differences from the intended relative movements of the actuators.
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Inventors:
McKennan Pat S
Nagure Gregory A
Nagure Gregory A
Application Number:
JP2015506984A
Publication Date:
August 31, 2016
Filing Date:
February 07, 2013
Export Citation:
Assignee:
CASCADE CORPORATION
International Classes:
F15B11/16; F15B9/16
Domestic Patent References:
| JP6159323A | ||||
| JP5294263A | ||||
| JP55176292U |
Foreign References:
| WO1995011189A1 |
Attorney, Agent or Firm:
Yamaguchi International Patent Office
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