F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
342/11, 342/13.1
F04B 49/06 (2006.01) G05D 16/20 (2006.01) G06F 15/72 (1985.01)
Patent
CA 1261034
ABSTRACT OF THE DISCLOSURE An automatic self contained internal combustion engine fire pump controller for testing and operating an internal combustion engine coupled to a water pump for maintaining water pressure in a sprinkler system. The sprinkler system includes a deluge valve for reducing the water pressure, and the engine has a starter motor, a starter solenoid connected to the battery, and a separate fuel supply. A housing contains the controller, and includes a selector switch having at least a manual run position, and an automatic run position. A fuel valve controls the fuel supply to the internal combustion engine. A pressure transducer senses the fluid pressure of the sprinkler system and has its input connected to the central processing unit. A central processing unit is responsive to the automatic position of the switch and is coupled to the fuel valve, the deluge valve and the pressure transducer means. There is also a keyboard programmer coupled to the central processing unit for setting the clock time, the engine start time, the engine stop time, the test time for the engine, and for setting the predetermined pressure to start the engine. When the selector switch is set to the automatic position, the central processing unit, in response to the program preset by said keyboard programmer, and at a preset test time, opens the deluge valve to cause a pressure drop in the sprinkler system fluid, and at a preset pressure drop sensed by said pressure transducer, operates the starter solenoid to connect the battery to the starter motor to automatically start the engine, maintain the engine running for a preset time interval, and then operate said fuel valve to cut off the fuel to shut down the engine.
513229
Gardiner Quentin J.
Henningsen Lee
Firetrol Inc.
Mcfadden Fincham
LandOfFree
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