Carburetor for an internal combustion engine
This patent describes a system for generating and supplying heated vapors of liquid fuel to an internal combustion engine, after the engine has been started and brought up to normal operating temperature, the engine employing standard intake and exhaust manifolds, a standard carburetor and throttle linkage, and having two fuel paths, one path being a standard fuel system and carburetor, the second path incorporating a multi-port valve which sends a predetermined amount of fuel to the engine, means for selecting the two paths of fuel being a two-way valve which can stop the flow of fuel to the standard fuel system and carburetor and direct the flow of fuel to the multiport valve which sends a predetermined amount of fuel to run the engine at a predetermined power and R.P.M. using the positive crankcase ventilation system (P.C.V.) to feed the fuel directly into the intake manifold by feeding the fuel into the P.C.V. system vacuum line before the P.C.V. vacuum line is run through hot exhaust gas in the exhaust manifold, the fuel then leaving the exhaust manifold and being fed into the intake manifold by means of the P.C.V. vacuum line; each port of the multi-port valve having a selected exhaust port jet to feed a predetermined amount of liquid fuel into the P.C.V. system which will run the engine at that predetermined power and R.P.M., the power and R.P.M. capable of being changed by switching to one of three different exhaust port jets or by installing still another exhaust port jet in the multi-port valve for still another predetermined power and R.P.M.
- Assignee:
- NOV; NOV-92-011085; EDB-92-041173
- Patent Number(s):
- US 5027783; A
- Application Number:
- PPN: US 7-599105
- OSTI ID:
- 5936166
- Country of Publication:
- United States
- Language:
- English
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