Internal-combustion engines – Charge forming device – Combined liquid and gaseous fuel
Patent
1998-06-04
2000-02-22
Yuen, Henry C.
Internal-combustion engines
Charge forming device
Combined liquid and gaseous fuel
123575, F02M 4300
Patent
active
060267879
ABSTRACT:
A mixture of gaseous fuel (natural gas or propane) and gasoline is used to fuel the internal combustion engine of a motor vehicle. The ratio of gaseous fuel to gasoline is preadjusted by the manual settings of an electronic processor which is used to change the gasoline fuel injection rate and the manual settings of an air/vacuum balance valve connected to a low pressure regulator and mixer are used to regulate the pressure of the gaseous fuel and mix it with air to provide the desired ratio. The fuel injection is also controlled in response to a signal fed to the processor which is in accordance with the output of the vehicle's exhaust oxygen sensors. The flow rate of gaseous fuel to the engine is controlled by means of a mixer which is preadjusted for a desired flow rate. This flow rate is automatically varied in response to the intake manifold pressure of the engine. This manifold pressure drives a valve which controls the gaseous fuel flow rate. When one of the dual fuels is depleted, a control in the electronic processor operates to switch to the other fuel and the vehicle is then operated on a single fuel.
REFERENCES:
patent: 3577877 (1971-05-01), Warne
patent: 3650255 (1972-03-01), McJones
patent: 4399780 (1983-08-01), Lassanske et al.
patent: 4440137 (1984-04-01), Lagano et al.
patent: 4476827 (1984-10-01), Basaglia
patent: 4492207 (1985-01-01), Hallberg
patent: 4614168 (1986-09-01), Batchelor
patent: 4641625 (1987-02-01), Smith
patent: 4936280 (1990-06-01), Langlois
patent: 5224457 (1993-07-01), Arsenault et al.
patent: 5337722 (1994-08-01), Kwrihara et al.
patent: 5370097 (1994-12-01), Davis
patent: 5526797 (1996-06-01), Stokes
patent: 5546908 (1996-08-01), Stokes
patent: 5549083 (1996-08-01), Feuling
patent: 5713336 (1998-02-01), King et al.
Hussein Syed
Sun Xiaobo
Huynh Hai
Impco Technologies, Inc.
Sokolski Edward A.
Yuen Henry C.
LandOfFree
Air-fuel control for alternative engine fuels does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-fuel control for alternative engine fuels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-fuel control for alternative engine fuels will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-512721