Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1989-10-26
1990-06-05
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123543, F02M 3100
Patent
active
049304844
ABSTRACT:
A fuel and air mixture expanding and preheating system for use in a vehicle having an internal combustion engine, an intake manifold, a carburetor, an automatic transmission and a transmission fluid cooler includes a heat exchanger body having a first mounting plate dimensioned for attachment to the carburetor and a second mounting plate dimensioned for attachment to the intake manifold. A heating fluid inlet of the heat exchanger body is dimensioned for connection to a heated automatic transmission fluid line of the vehicle, between the automatic transmission and the transmission fluid cooler. A heating fluid outlet of the heat exchanger body is dimensioned for connection to a transmission fluid cooler inlet of the vehicle. A throttle valve is mounted in an outlet portion of the heat exchanger body, adjacent the intake manifold mounting plate. In use, the fuel and air mixture from the carburetor is heated and expanded in the heat exchanger body prior to induction into the intake manifold of the internal combustion engine. The heat is extracted from the automatic transmission fluid of the vehicle, resulting in a cooler operating temperature for the vehicle transmission. The heat exchanger body includes an internal fluid reservoir having a hollow spiral fin in fluid communication with the reservoir. The fuel and air mixture is thus forced to follow a helical flow path in the heat exchanger body for maximum heat transfer efficiency.
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Binkley Steven M.
McCarty Clinton D.
Dolinar Andrew M.
Kearns Jerry T.
Macy M.
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