Patent ID: 9745903
Date: 2017-08-29
CPC Classifications: F02D,F02M,Y02T

Claim:
1. A dual fuel system for a combustion engine, comprising: an air and fuel mixer configured to mix air and fuel provided to the combustion engine; a first fuel path for a first fuel; a second fuel path for a second fuel, wherein the first and second fuels have different physical and chemical properties; and a common fuel path coupled to the air and fuel mixer and both the first and second fuel paths, wherein the common fuel path comprises an electronically controlled valve configured to regulate the air to fuel ratio of an air/fuel mixture provided to the combustion engine in response to control signals from a controller, both the first and second fuel paths are coupled to the common fuel path at a location upstream of the electronically controlled valve, and the electronically controlled valve is located upstream of where the common fuel path is coupled to the air and fuel mixer.