Fuel injection apparatus of internal combustion engine
Patent 4481921 Issued on November 13, 1984. Estimated Expiration Date: 
May 19, 2003. 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.
May 19, 2003. 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 1101271 1180169 1238828 1419231 2947291 3216407 3308794 3749097 InventorsAssigneeApplicationNo. 06/496215 filed on 05/19/1983US Classes:123/304, Injecting diverse fuels or different states of same fuel123/300, Alternating multiple injectors (e.g., series injection)123/575Diverse fuel supplyExaminersPrimary: Cox, Ronald B.Attorney, Agent or FirmInternational ClassesF02M 43/04 (20060101)F02M 43/00 (20060101) F02B 75/02 (20060101) Foreign Application Priority Data1982-05-26 JPAbstractA fuel injection apparatus for an internal combustion engine arranged so as to inject different types of fuel in a given order has fuel injection nozzles respectively corresponding to cylinders of the internal combustion engine, compressors for respectively delivering an auxiliary fuel to the fuel injection nozzles, and a main fuel injection pump for compressing and delivering a main fuel to the fuel injection nozzles at respective given timings. Each fuel injection nozzle has a fuel reservoir around the distal end portion of a nozzle needle in the vicinity of a fuel injection port. The auxiliary fuel from the corresponding compressor is delivered to a portion of the fuel reservoir which is adjacent to the fuel injection port. A second passage is formed to receive the auxiliary fuel from a portion of the fuel reservoir which is adjacent to the fuel injection port. A first passage is formed to communicate with a portion of the fuel reservoir which is spaced apart from the fuel injection port. The first passage receives the main fuel from the fuel reservoir. | |
