Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1980-11-24
1983-02-08
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123549, 219205, F02M 3100
Patent
active
043722792
ABSTRACT:
A heated fuel line for preventing solidifying of fuel in the fuel line of an engine in extremely low-temperature environments includes an electrical resistance heating element positioned directly inside the fuel line. A thin, tape-like heating element is preferably employed through the length of the fuel line between the tank and the connection to a fuel filter near the engine. Lead wires extend from the downstream end of the heating element through a fitting which carries the leads to the exterior of the fuel line. The heating element is preferably of a type including a pair of spaced conductor wires covered with and separated by a sheath of a radiation cross-linked polymer which has the property of becoming more conductive in lower temperatures and less conductive in higher temperatures. At lower temperatures, where heating of the fuel in the line is most needed, the element therefore produces the greatest amount of heat.
REFERENCES:
patent: 1119840 (1914-12-01), Kuhn
patent: 1280787 (1918-10-01), Curtain
patent: 1461470 (1923-07-01), Ackley
patent: 1525824 (1925-02-01), Palmer
patent: 3288078 (1966-11-01), Hynes
patent: 4055526 (1977-10-01), Kiyokawa
patent: 4208996 (1980-06-01), Lancaster
patent: 4309596 (1982-01-01), Crowley
patent: 4325345 (1982-04-01), Wilkinson
Lazarus Ronald H.
Paccar Inc.
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