초록 ▼

A supplemental fuel system for a combustion engine has a primary fuel supply feeding the combustion chamber directly and a supplemental fuel supply which feeds into the combustion air intake. The supply of primary fuel is appropriately reduced or regulated by automatic control and the supply of the

A supplemental fuel system for a combustion engine has a primary fuel supply feeding the combustion chamber directly and a supplemental fuel supply which feeds into the combustion air intake. The supply of primary fuel is appropriately reduced or regulated by automatic control and the supply of the supplemental fuel is continuously automatically adjusted to the supply of primary fuel. Initially the supplemental fuel in vapor state is introduced into the air intake until the heat exchange vaporizer system warms up, when there is an automatic shift to the liquid state of supplemental fuel. A temperature compensator in the air intake connected to the supplemental fuel supply holds the temperature of the supplemental fuel at the same temperature as the air with which it is mixed before passing to the final metering orifice and then to the combustion chamber. In case of failure or malfunction of the supplemental fuel supply system, a fail-safe mechanism automatically cuts off the supplemental fuel portion of the system allowing the entire system to operate at restored full power output on the primary fuel.

대표청구항 ▼

A supplemental fuel system for an engine which has a combustion chamber, a conduit thereto for a flowing combustion air supply, a primary source for primary fuel, primary delivery means between said primary source and said combustion chamber, and primary fuel pressure means for said primary delivery

A supplemental fuel system for an engine which has a combustion chamber, a conduit thereto for a flowing combustion air supply, a primary source for primary fuel, primary delivery means between said primary source and said combustion chamber, and primary fuel pressure means for said primary delivery means, a supplemental source for a supplemental fuel agency including a supplemental delivery means between said supplemental source and said air supply, and an automatic flow control means in said supplemental delivery means for establishing an initial open flow condition therein, a temperature moderator for said supplemental delivery means responsive to temperature of said air supply for moderating the temperature of said supplemental fuel agency, a main electrical circuit for said primary fuel pressure means having an ignition switch therein, adjusting means in said electrical circuit for establishing flow conditions in said primary delivery means and automatic compensating means for regulating the flow condition in said supplemental delivery means reponsive to the flow condition in said primary delivery means.