Fuel vaporization method and apparatus
A fuel vaporizing apparatus is described for use with an internal combustion engine having an intake manifold and a down draft carburetor which supplies mixtures of air and volatile liquid fuel. The apparatus consists of: passageway means disposed within a heat exchanger for guiding carburetor air-fuel mixtures in a flow direction substantially opposite the flow of the carburetor, first conduit means for communicating air-fuel mixtures from the carburetor to a lower inlet means in the heat exchange, second conduit means for communicating vaporized air-fuel mixtures from an upper outlet means in the heat exchanger to the intake manifold, the passageway means comprising one or more tubes, the lower inlet means comprising a manifold having an inlet connected to the first conduit means and plural outlets connected to the lower ends of the plural passageways, the upper outlet means comprising a manifold having plural inlets connected to upper ends of the one or more tubes and an outlet connected to the second conduit means, mounting means mounted between the intake manifold and the carburetor, having a first passageway extending therethrough from a side inlet opening in communication with the upper outlet means to a bottom outlet opening in communication with the interior of the intake manifold and a second passageway extending therethrough from a top inlet opening in communication with the interior of the carburetor to a side outlet opening in communication with the lower inlet means, all air-fuel mixtures communicated from the carburetor to the intake manifold passing through the passageway means, and means for supplying heat to the heat exchanger for heating the passageway means.
- Assignee:
- NOV; EDB-86-101918
- Patent Number(s):
- US 4574764
- OSTI ID:
- 5900025
- Resource Relation:
- Patent File Date: Filed date 15 May 1985
- Country of Publication:
- United States
- Language:
- English
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