F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/31
F02M 1/16 (2006.01) F02N 19/00 (2010.01) F02M 7/06 (2006.01) F02M 69/08 (2006.01) F02M 71/04 (2006.01)
Patent
CA 1082058
FUEL INJECTION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE ABSTRACT OF THE DISCLOSURE An air and fuel mixing device incorporates a Venturi throat or other mixing means for feeding a highly combustible mixture of fuel and pressurized air to an electrical fuel injector valve or directly to the intake manifold in a system for starting an internal combustion engine. The system replaces the choke in a conventional electrical ignition type internal combustion engine. The fuel injector valve is controlled to inject a limited quantity of a highly combustible atomized air-fuel mixture into the engine intake manifold during engine startup. Startup is achieved with minimum fuel waste and pro- duces a minimum of exhaust pollutants. A modified form of the invention is shown as employed in a fuel injection type inter- nal combustion engine system wherein high pressure air-fuel mix- ture is fed to the fuel injectors solely through use of a conven- tional low pressure fuel pump and air supply. The injectors operate to discharge a highly volatile, combustible, air-fuel mixture under pressure, instead of raw fuel thus significantly increasing combustion efficiency during engine startup to mini- mize fuel waste and reduce deleterious exhaust emissions. An- other modified form of the invention is shown wherein the system is employed to feed a mixture of fuel and pressurized air to the engine intake manifold in response to an acceleration command from the engine throttle control during normal engine operation. This eliminates the need for the notoriously troublesome carbur- etor accelerator pump now in conventional use.
311699
Mitches & Co.
Wallis Marvin E.
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