Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 11, 2019
Patent Application Number
14987765
Date Filed
January 5, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A hydraulic system includes a hydraulic pump to discharge an operation fluid, a hydraulic device to be operated by the operation fluid, a plurality of hydraulic pressure controllers each to change an operation state of the hydraulic pressure controller based on a pressure of the operation fluid so as to control the hydraulic device, and a proportional valve connected to the plurality of hydraulic pressure controllers. The proportional valve is configured to set a pressure of the operation fluid supplied to the hydraulic pressure controllers.
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