Internal-combustion engines – Igniters – Incandescent
Patent
1996-06-12
1998-09-22
Nelli, Raymond A.
Internal-combustion engines
Igniters
Incandescent
F02B 908
Patent
active
058099573
ABSTRACT:
A method of prolonging the life of glow plugs comprises the steps of providing a variable displacement pump rotatably connected to a internal combustion engine; driving a hydraulic motor at a generally constant speed with the hydraulic output of the variable displacement pump and directly connecting an alternator to the hydraulic motor to energize the glow plugs with an AC current and voltage and controlling the AC current to maintain a generally constant glow plug temperature from startup and throughout the entire operating range of the internal combustion engine.
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Antone James A.
Willi Martin L.
Baehr Fred J.
Caterpillar Inc.
Nelli Raymond A.
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