Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1980-10-14
1983-03-22
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123510, 123516, F02M 3100
Patent
active
043771491
ABSTRACT:
An improved fuel temperature control system is disclosed for attachment to a diesel engine. The control system comprises a fuel tank, an injection pump and a transfer pump along with associated fuel lines. The transfer pump is designed to draw fuel out of the fuel tank and route it to the injection pump. In the injection pump, a portion of the fuel is directed to the cylinders of the engine while the unused portion is returned via a return line to the fuel tank. In addition to the above, a temperature control means is positioned across the fuel supply line between the transfer pump and the injection pump. This temperature control means contains a temperature sensor interconnected to a temperature compensator valve. The temperature sensor is capable of sensing the temperature of the fuel as it flows through the fuel supply line while the temperature compensator alters the direction of flow of the fuel in response to commands from the temperature sensor. When the sensor signals that the warm unused fuel from the injection pump should be mixed with the cold incoming fuel from the fuel tank, the temperature compensator alters the flow of the fuel through a fuel bypass line. This fuel bypass line connects the temperature control valve to the fuel supply line upstream of the transfer pump. By mixing the warm unused fuel with the incoming cold fuel, one is able to warm up the fuel flowing to the injection pump, thereby providing better ignition and a more balanced horsepower output for the vehicle.
REFERENCES:
patent: 2599699 (1952-06-01), Dilworth
patent: 2881828 (1959-04-01), McGinnis
patent: 3472214 (1969-10-01), Moon
patent: 3489128 (1970-01-01), Dinger
patent: 3628516 (1971-12-01), Perrin
patent: 3768454 (1973-10-01), Markland
patent: 3893694 (1975-07-01), Inada
patent: 4187813 (1980-02-01), Stumpp
Naylor Jimmy C.
Norton Richard G.
Deere & Company
Lazarus Ronald H.
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