Internal-combustion engines – Charge forming device – Gaseous fuel and air mixer
Patent
1992-04-16
1993-10-12
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Gaseous fuel and air mixer
123701, F02M 2102
Patent
active
052516024
ABSTRACT:
Two embodiments of air/fuel ratio adjusting systems for gaseous-fueled internal combustion engines. In each embodiment, a pressure regulator supplies regulated fuel in gaseous form from a source in which it is stored in a liquid form to a charge former that has a fuel control device such as a needle valve. The air/fuel ratio is maintained constant by mixing atmospheric air with the fuel before the charge former fuel control device under the control of an oxygen sensor in the exhaust system. In one embodiment, an enrichment system is also incorporated for supplying enrichment fuel under acceleration or cold starting conditions.
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Iida Yoshikatsu
Kurihara Noriuiki
Beutler Ernest A.
Moulis Thomas
Wolfe Willis R.
Yamaha Hatsudoki Kabushiki Kaisha
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