F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 21/04 (2006.01) F04B 49/06 (2006.01) F04B 49/10 (2006.01) F04C 29/10 (1990.01)
Patent
CA 2133616
A controller regulates a hydraulic pump for hydraulic equipment to allow long-term use of environmentally safe hydraulic fluids. This is accomplished by limiting the hydraulic pump power output to a level established to prevent the operating temperature from exceeding a specified level. A manual mode for switching between power curves permits alternate use of hydraulic fluids having different maximum operating temperatures. An automatic mode detects the type of hydraulic fluid and automatically selects and applies a suitable power mode curve to limit the maximum operating temperature to a value suitable for the detected type of fluid.
Robic
Shin Caterpillar Mitsubishi Ltd.
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