F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
342/19.6
F02B 77/00 (2006.01) F02N 19/04 (2010.01) F02N 99/00 (2010.01) F02B 3/06 (2006.01)
Patent
CA 1186780
ABSTRACT OF THE DISCLOSURE A preheating system for a diesel engine using an electric heater for heating suction air introduced into a combustion chamber of the diesel engine. A normally-open first relay is disposed in a circuit connecting the heater with a battery. A coil of the first relay is connected with an accessory terminal of an engine key switch through a pushbutton switch. A timer and a normally-open second relay are disposed in another circuit connecting the coil of the first relay with accessory terminal of the engine key switch. Once the pushbutton switch is pressed, the second relay is closed, connecting the coil of the first relay with the accessory terminal through the timer, thereby electrically connecting the heater with the battery. The heater continues to be heated until the timer deenergizes the first relay.
406008
Kabushiki Kaisha Komatsu Seisakusho
Sim & Mcburney
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