Abstract: An electronic governor is disclosed for power producing and power absorbing devices having a minimum number of component parts. Power for all of the electronic governor components is supplied by a small coil, thereby avoiding the need for an additional coil frame or other power source. In a preferred embodiment, power supply circuitry converts the alternating signal from the coil to a direct current signal to power the governor. A signal conditioner also provides a low state signal to a 555 timer to start the timing cycle. The length of the timing cycle, and thus the high state control signal output of the timer, is a function of the desired device speed. When the timer output is at a high state while at the same time the alternating signal from the coil is at its first polarity, one or more switches conduct to adjust an electromagnetic actuator. In one embodiment, the switches control a motor connected to an engine throttle and operated in a stepper mode.

Abstract: A fuel/mixing device for mixing producer gas with air is provided to generate a suitable air/fuel mixture for firing an internal combustion engine. Stepped venturi inlets are utilized, whereby the gas is expanded as the air is reduced, to both accelerate and mix the gas with the air as it is introduced into the throat of a carburetor. Means are provided for adjusting the air flow without disturbing the standard throttle on the carburetor. The mixing device is adapted to be mounted on existing carburetors, permitting retrofitting of existing equipment. The device permits start-up with gasoline and a smooth transition from gasoline fuel start-up to full operation on producer gas.

Abstract: A low level lubricating oil detector for an internal combustion engine. The detector includes a tube that is located in crankcase of the engine and the tube has an opening in its lower end located at the predetermined minimum oil level. The upper end of the tube communicates with a chamber and one side of the chamber is enclosed by a piezo electric element. When the oil level in the crankcase recedes beneath the minimum level, pressure pulsations in the crankcase are transmitted through the tube to the piezo electric element which generates a signal that operates through an electric circuit to stop operation of the engine.