Rotary gaseous fuel injector

Details Rotary gaseous fuel injector Rotary gaseous fuel injector

1991-12-11

1993-04-13

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

123472, F02M 2104

Patent

active

052012999

ABSTRACT:
There is provided an electrically activated, multiple orifice rotary fuel injector for injecting gaseous fuel into an internal combustion engine. A rotary electric stepper motor is housed within an injector body which receives both air and compressed gaseous fuel. The stepper motor rotates an annular valve member to selectively permit or block fuel flow into the air stream through a plurality of circumferentially arranged holes in the valve member, and a correspondingly arranged plurality of passages in the injector body. An electronic control module on the engine utilizes pulse-width-height-triggering point modulation techniques for controlling fuel injection intervals and timing.

REFERENCES:
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patent: 2571713 (1951-09-01), Hebert
patent: 3216449 (1965-11-01), Maudlin et al.
patent: 4416638 (1983-11-01), Ellis
patent: 4430978 (1984-02-01), Lewis et al.
patent: 4469070 (1984-09-01), Rassey
patent: 4527516 (1985-07-01), Foster
patent: 4673160 (1987-06-01), Tolley
patent: 4759331 (1988-07-01), Sausner
patent: 5101794 (1992-04-01), Van Blaricom
patent: 5150685 (1992-09-01), Porter et al.

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