Fuel vaporizer manifold
This patent describes an internal combustion engine including a carburetor and intake and exhaust manifolds, a vaporizer manifold and gas conveying system for receiving liquid fuel from the carburetor and converting the liquid fuel to a vapor for powering the engine. It comprises heating tube means having inlet and outlet ends; heat conductive surface means being arranged in thermal contact with the heating tube means and positioned to come into contact with the liquid fuel received from the carburetor; inlet means for receiving some of the hot exhaust gases exiting the engine, the inlet means communicating with the inlet ends of the heating tube means so that the hot gases received at the inlet means pass through sad heating tube means for heating the heat conductive surface means and vaporizing the liquid fuel coming in contact therewith, the vaporized fuel being provided to the intake manifold from the vaporizer manifold; outlet means extending between the outlet ends of the heating tube means and the carburetor to permit the hot exhaust gases exiting the vaporizer manifold to be supplied to the carburetor to be mixed with fresh air thereat; and an exhaust return line extending between the exhaust manifold and the carburetor for receiving other exhaust gases exiting the engine that are not received by the inlet means, the exhaust return line supplying the other exhaust gases to the carburetor to be mixed with fresh air thereat.
- Assignee:
- NOV; NOV-91-042004; EDB-92-058425
- Patent Number(s):
- US 5040518; A
- Application Number:
- PPN: US 7-549475
- OSTI ID:
- 5747361
- Resource Relation:
- Patent File Date: 6 Jul 1990
- Country of Publication:
- United States
- Language:
- English
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