Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1990-05-07
1991-04-09
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123546, 123514, F02M 3100
Patent
active
050055518
ABSTRACT:
A system (110) for preheating fuel both in a fuel tank (16) and in a fuel supply line for an internal combustion engine. The system (110) includes a pair of heat exchangers (12 and 112) for transferrinhg heat from a heated fluid to the fuel. The tank heat exchanger (12) includes a fuel tube (32) with a right angle outlet (54), the fuel tube (32) being surrounded by the heated fluid for heating of the fuel prior to its entering the fuel line of the vehicle or other device in which the system is installed. In the preferred embodiment, the tank heat exchanger (12) is installed through an access opening (14) normally provided in fuel tanks used in diesel engine-powered over-the-road trucks. A flange (18) is provided for securing the tank heat exchanger (12) to the flange (20) which surrounds the opening (14) in the fuel tank (16).
The in-line heat exchanger (112) is installed in series with the fuel supply line between the engine and fuel tank (16), and is similar to the in-tank heat exchanger (12) in that it immerses a conveyance of heated fluid (153) in a volume of fuel (146) to be heated. The in-line heat exchanger (112) also utilizes the heat from and also further heats the unused fuel (151) returned from the engine.
REFERENCES:
patent: 4397288 (1983-08-01), Kelling
patent: 4432329 (1984-02-01), Redele
patent: 4684786 (1987-08-01), Mann et al.
patent: 4748960 (1988-06-01), Wolf
patent: 4807584 (1989-02-01), Davis
patent: 4865005 (1989-09-01), Griffith
patent: 4926830 (1990-05-01), McNelley
Dolinar Andrew M.
Macy M.
LandOfFree
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