High intensity discharge lighting system

Details High intensity discharge lighting system High intensity discharge lighting system

1979-12-11

1983-03-22

Nelson, Peter A.

Illumination

Sound equipment illuminator

362362, 362802, 180 53R, B60Q 102

Patent

active

043778410

ABSTRACT:
A mobile land vehicle having an engine arranged to provide motive power to the vehicle and to pump or pumps in a hydraulic work circuit; the engine governed to operate at a given speed. An alternator is also driven by the engine and connected to provide alternating current to high intensity discharge lamps which are capable of operation only between a relatively narrow range of current frequencies. The drive means to the alternator produces a frequency near the high end of said range when said engine is at or near its governed speed and the frequency approaches the lower end of said range as the engine speed is lugged down under full load.

REFERENCES:
patent: 3102993 (1963-09-01), Jensen
patent: 3191019 (1975-06-01), Rijnders et al.
patent: 3283485 (1966-11-01), Koch
patent: 3440740 (1969-04-01), Kamluckin
patent: 3442069 (1969-05-01), Butler
patent: 3789943 (1974-02-01), Kampert et al.
patent: 3883794 (1975-05-01), Sivley
patent: 4023030 (1977-05-01), Teti
patent: 4084215 (1978-04-01), Willenbrock
patent: 4299575 (1981-11-01), Carrow

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