Abstract: A siloxane filter system for protecting an oxygen probe utilized in an internal combustion engine fueled by bio-gases, the filter system having a stainless fiber filter removably disposed in a housing having and inlet port and an outlet port disposed in fluid communication with an exhaust duct in such a manner as to cause exhaust gases to flow through the housing and filter, the oxygen probe is disposed in the housing down stream of the filter, causing siloxane in the exhaust gases to be deposited on the stainless fibers of the filter and essentially siloxane free gases passes over the oxygen probe extending its useful life.

Abstract: A transformer assembly having an elongate body including a cup portion containing primary and secondary coils, a base portion, and a stem is adapted to be installed in a housing of a cylinder head. An electrical source extends through the stem and base portion. An electrical connecting system includes an electrical conductor adapted to receive the voltage source with a spring contacting the end of a spark plug terminal biasing the conductor in a director away from the spark plug in the installed position. The electrical connector system further includes a positioning device adapted to positive align and contain the transformer assembly within a valve mechanism compartment defined between a cover and the cylinder head. A spring member connected to the cup portion axially biases the electrical conductor in a direction toward the spring in contact with the spark plug terminal insuring an electrical connection.

Abstract: A wiring system for use with an engine or power module having a number of electrical systems includes a first electrical device of an electrical system, a second electrical device of the electrical system, and an electrical connector connected between the first and the second electrical devices to define an electrical circuit. The electrical connector includes alpha-numeric indicia identifying the electrical circuit. The alpha-numeric indicia include a first alpha-numeric indicium corresponding to the electrical system, a second alpha-numeric indicium corresponding to the first electrical device and a third alpha-numeric indicium corresponding to the second electrical device. The wiring system can also include a connection terminal disposed between the first and second electrical devices, wherein the electrical connector includes both first alpha-numeric indicia identifying the electrical circuit and second alpha-numeric identifying the connection terminal.