Fuel vaporization and injection system for internal combustion e

Details Fuel vaporization and injection system for internal combustion e Fuel vaporization and injection system for internal combustion e

1974-10-16

1976-03-23

Myhre, Charles J.

Internal-combustion engines

Noncompression

123122E, 123 32SW, F02B 6900, F02M 3100

Patent

active

039453529

ABSTRACT:
An internal combustion engine having characteristics that lie between the Otto cycle and the Diesel cycle, plus the ability to burn any type of liquid hydrocarbon fuel. Air is compressed to the peak of the compression stage, at which point the high-pressure, high-temperature fuel vapor is injected into the combustion chamber where it mixes with the air and ignites to initiate the power stroke. Liquid hydrocarbon fuel is vaporized in a flash boiler and brought up to high pressure, well in excess of the compression pressure in the combustion chamber, and to temperature above the ignition point. At the peak of compression, a regulable valve opens to allow a metered quantity of the high-pressure vaporized fuel to be injected into the combustion chamber. The vaporized fuel, being already heated well above the ignition temperature, ignites as it mixes with the air in the combustion chamber and burns cleanly and efficiently during the power stroke. Heat of vaporization added to the fuel in the boiler is added to the heat generated by combustion, thereby producing an additional increment of power in the power stroke. During the warm-up stage, the engine operates as a conventional gasoline engine, using a carburetor and spark ignition. When the fuel boiler reaches operating temperature and pressure, the carburetor is switched off, and operation is continued, using high pressure fuel vapor injection.

REFERENCES:
patent: 2653734 (1953-09-01), Stoker
patent: 3623639 (1971-11-01), McShirley
patent: 3765382 (1973-10-01), Vandenberg

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