Abstract: An improved fuel injection system for a spark ignition multicylinder internal combustion engine includes a fuel heater tank for vaporizing liquid fuel and accumulating a supply of fuel vapors. The fuel vapors are pressurized by an air pump driven by the internal combustion engine, and a plurality of injection nozzles are located in the intake manifold at positions as close to the intake valves as possible. A control valve mechanism supplies fuel vapors accumulated in the fuel heater tank to each of the nozzles.

Abstract: A safety cutoff switch for a hydrogen gas generator system is disclosed. The hydrogen gas generator system is of the type for use with automotive internal combustion engines wherein combustible hydrogen gas generated by the system is co-mingled with exhaust gases from the internal combustion engine and fed into the intake manifold. The hydrogen gas generator system includes a group or groups of hydrogen gas fuel cells which are provided with electrical current generated by alternators driven by the engine or the automotive drive train. The current from the alternators is supplied through the safety cutoff switch and individual, manually operable switches to each fuel cell. The safety cutoff switch comprises a solenoid structure having a spring biased armature carrying an electrical contactor for making an electrical circuit between two electrical contact posts.

Abstract: A cooling system for an internal combustion engine is provided with a primary heat exchanger and a secondary or auxiliary heat exchanger. A liquid coolant is used in the engine block, and circulation is achieved using a conventional water pump. However, no fan is required to draw air through a radiator core. Instead, air is conducted through tubing within a reservoir for the liquid coolant, this structure comprising the first heat exchanger. The air for the first heat exchanger is supplied from atmosphere and circulates through the tubing within the reservoir and is then conducted to the intake manifold of the internal combustion engine. The suction caused by the intake manifold vacuum causes air to constantly flow through the tubing in the water reservoir. This has the advantage of not only cooling the water but preheating the air that is supplied to the intake manifold.