Preheating device for starting an internal combustion engine of

Details Preheating device for starting an internal combustion engine of Preheating device for starting an internal combustion engine of

1980-04-09

1982-05-25

Lall, P. S.

Internal-combustion engines

Starting device

For airplane

123145A, F02P 1902, F02N 1700

Patent

active

043311091

ABSTRACT:
A pre-heating device, for starting an internal combustion engine, of the Diesel type or the like, comprises a pre-heating plug, mounted in each cylinder, adapted to be supplied by a source of electrical energy to ensure the pre-heating of a combustion chamber, and a rapid pre-heating circuit ensuring the connection of each pre-heating plug to a relatively high electrical voltage. The rapid pre-heating circuit is normally put into operation from the start of pre-heating. A slow pre-heating circuit is also provided to ensure the connection of each pre-heating plug to a lower electrical voltage after a rapid pre-heating period determined by, first time delay means. Said first time delay means is combined with means sensitive to the temperature of the engine arranged so that the rapid pre-heating time depends on the temperature of the engine. Control means are provided to close the supply circuit of the starter automatically on the cut off of the rapid pre-heating circuit and/or to close the slow pre-heating circuit.

REFERENCES:
patent: 4088109 (1978-05-01), Woodruff et al.
patent: 4137885 (1979-02-01), Van Ostrom
patent: 4177785 (1979-12-01), Sundeen
patent: 4207853 (1980-06-01), Phillips
patent: 4258678 (1981-03-01), Abe

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