Starter arrangement for a helicopter

Details Starter arrangement for a helicopter Starter arrangement for a helicopter

1988-09-21

1989-10-24

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft power plants

123179AS, 416170R, 244 1711, B64D 3102

Patent

active

048756431

ABSTRACT:
A helicopter equipped with a reciprocating piston internal combustion engine in which an override clutch is arranged in a drive connection between the internal combustion engine and a rotor drive, is equipped with separate first and second electric motor starter devices (screw-push starters). A starter operation takes place in two phases whereby in a first phase initially the rotor drive is brought to a rotor synchronous rotational speed syn by means of the first starter device and in a second phase the internal combustion engine is started by means of the second starter device. When the internal combustion engine exceeds the idling rotational speed nl, the override clutch establishes the power-flow connection between the internal combustion engine and the rotor drive. Both phases can be carried out manually as also by a partly automatic or fully automatic control system on the basis of key depression.

REFERENCES:
patent: 1734263 (1929-11-01), Many
patent: 3325122 (1967-06-01), Young
patent: 3455182 (1969-07-01), Kelley
patent: 3938320 (1976-02-01), Nelson
patent: 4046335 (1977-09-01), Osberger

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