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[CN 201980084421.8] Hydraulic press with controllable valve and method for idling such hydraulic press
[CN 201980084421.8] Hydraulic Press with Controllable Valve and Method for Idling This Hydraulic Press Title: Hydraulic Press with Controllable Valve and Method for Idling This Hydraulic Press Application Number: CN 201980084421.8 Applicant: Dinev Company Application Date: 2019-12-20 Patent Type: Invention Application for Method for Idling Hydraulic Press, This Hydraulic Press includes:-Electronically Controlled High Pressure Valve and Electronically Controlled Low Pressure Valve;-Control System, arranged to control the opening and closing of the valve;-a first idle safety valve device arranged between the first working chamber and a fluid tank with a pressure equal to or lower than the high pressure;-operating the hydraulic machine in an empty cylinder idle mode, wherein, The high pressure valve and the low pressure valve are closed simultaneously during at least one complete cycle of the changed volume; and-only when the fluid pressure in the working chamber increases above a set threshold and the empty cylinder mode is activated, releasing hydraulic fluid to the fluid sump,-enabling the first idle speed safety valve device when the hydraulic machine is operating in an empty cylinder idle mode, and disabling the first idle speed safety valve device when the hydraulic machine is not operating in the empty cylinder idle mode.
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