F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 20/00 (2006.01) B65G 67/00 (2006.01) F16K 31/64 (2006.01) F16K 31/68 (2006.01)
Patent
CA 2699814
A protection valve for a hydraulic drive system and a method for protecting the hydraulic drive system and pumping equipment driven by the hydraulic drive system includes a valve body, an actuator shaft movably disposed within the valve body, a thermal actuator for displacing the actuator shaft between an un- actuated position and an actuated position, and a poppet attached to the actuator shaft for movement therewith. The thermal actuator is configured to displace the actuator shaft between the un-actuated position and the actuated position in response to a hydraulic oil temperature that exceeds a predetermined maximum. A thermal actuator body is rigidly attached to the valve body at one end and a valve seat body is rigidly attached to the valve body at the other end. The thermal actuator body has openings formed therein for placing hydraulic oil in fluid communication with the thermal actuator.
Gowling Lafleur Henderson Llp
Paragon Tank Truck Equipment Llc
LandOfFree
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