Rotary gaseous fuel injector
Patent 5201299 Issued on April 13, 1993. Estimated Expiration Date: 
December 11, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 11, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1238433 2571713 3216449 Apparatus for feeding fuel to a marine engine Direct liquid injection of liquid petroleum gas Fuel control valve Dual fuel engine Digital servo-valve Electromagnetically actuatable fuel-injection valve Internal combustion engine InventorApplicationNo. 804994 filed on 12/11/1991US Classes:123/527, Gaseous fuel and air mixer123/472Electrically actuated injectorExaminersPrimary: Wolfe, Willis R.Attorney, Agent or FirmForeign Patent References
International ClassF02M 021/04AbstractThere 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. | |
