Method and apparatus for controlling air to gas ratio of gaseous fueled engines
This patent describes an improved apparatus for controlling the air to gas ratio of fuel supplied to a gas engine that includes an intake manifold and an exhaust manifold connected to the engine, a carburetor having an air inlet, and a gas regulator connected to the carburetor for controlling the pressure of gas to the carburetor. The improved apparatus comprising: conduit means connecting the carburetor to the intake manifold; a throttle valve located in the conduit means for varying the flow area therethrough in response to load changes on the engine; and means operably connected with the regulator for changing the volume of gas supplied to the carburetor in response to the carburetor in response to the position of the throttle valve. The means operably connected with the regulator including position sensing means for sensing the position of the throttle valve and for transmitting a signal indicative of such position to the regulator.
- Assignee:
- NOV; NOV-89-081085; EDB-90-001823
- Patent Number(s):
- US 4864991
- Application Number:
- PPN: US 7127155A
- OSTI ID:
- 5312417
- Resource Relation:
- Patent File Date: 1 Dec 1987
- Country of Publication:
- United States
- Language:
- English
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