Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1991-06-04
1992-08-25
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123547, 261145, 261156, F02M 3100
Patent
active
051409666
ABSTRACT:
Carburetors and fuel injection systems are used to facilitate a combustile mixture of air and fuel for internal combustion engines. Inherently, the fuel in this mixture is mostly in liquid droplets. However, it is the vaporous fuel which combines with the air gives an explosive mixture; and it is this mixture that can be exploded during the short engine power stroke time available. The rest of the fuel in liquid form simply burns or exhausts to the environment, hence impairing the efficiency of the engine and polluting the environment. In this invention, liquid fuel is vaporized and combined with air to form an explosive mixture before introduction into the engine. In this design, ultrasonic technology is employed to atomize the fuel in the form of fine fuel mist. This mist is then injected into a specially designed heat exchanger, in which hot engine exhaust gas is brought in to cause this subspension of fuel mist to vaporize. Subsequently, this vaporized fuel combines with the intake air to form an explosive mixture. In this process, microcomputer technology is employed to control the precise air to fuel ratio of the mixture according to the degree of fuel vaporization and the demand of the engine operation. The fuel in this mixture is in a vaporous state; therefore utilization of the fuel is maximized.
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Cross E. Rollins
Macy M.
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