Engine preheating device

Details Engine preheating device Engine preheating device

1990-01-02

1991-04-09

Cross, E. Rollins

Internal-combustion engines

With heating means

122 20B, F02N 1702

Patent

active

050055429

ABSTRACT:
An engine preheating device for heating internal combustion engines prior to operation utilizes a propane torch and conventional propane supply tank. A hollow cylindrical housing is supported in upright orientation by a plurality of circumferentially spaced support legs. A helical heat exchanger coil is disposed in coaxial relation within the housing. An inlet conduit is coupled to a bottom end of the coil and an outlet conduit is coupled to an upper end of the coil. Quick connect couplings secure the inlet and outlet conduits to a water jacket of an internal combustion engine. An arcuate tubular elbow has a first end mounted in coaxial relation within the bottom end of the housing. A propane torch head is inserted within the elbow and is connected by a conduit to a propane supply tank. A flame diffuser is suspended within the coil by a tube connected to a top cover. In use, anti-freeze from the engine water jacket is heated within the coil by the propane torch head and caused to flow in a thermal cycle through the engine block.

REFERENCES:
patent: 2021569 (1935-11-01), Pasco
patent: 4010725 (1977-03-01), White
patent: 4105158 (1978-08-01), Hasebe et al.
patent: 4317434 (1982-03-01), Kato
patent: 4348992 (1982-09-01), Southard
patent: 4392609 (1983-07-01), Conterio
patent: 4398081 (1983-08-01), Moad
patent: 4445469 (1984-05-01), Suhayda
patent: 4520769 (1985-06-01), Kratzer
patent: 4887586 (1989-12-01), Walters

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