Abstract: A centrifugal clutch for use with a power door lock actuator. The centrifugal clutch includes an independently rotatable pinion cup having an integral pinion gear which meshes with a jack screw, and a driver rotatably secured to an output shaft of a drive motor. The driver has at least one radially outwardly opening recess formed therein with at least one slider slidably retained within the recess. The slider is biased in a radially inward direction by magnetic lines of force which are provided by a permanent magnet mounted within the driver. Alternatively, a number of sliders can be formed of magnetic material such that the magnetic sliders are mutually attracted to one another in a radially inward direction. A centrifugal force is generated when the driver is rotated. The centrifugal force overcomes the magnetic attractive force to throw the sliders radially outwardly into positive driving engagement with the pinion cup.

Abstract: A torch ignitor for a lean burn internal combustion engine is disclosed in which a small quantity of gaseous fuel is activated by exposure to an electrical arc and injected into the main fuel air charge in the combustion chamber. The arc is established by causing a current to flow to a pair of electrodes which are separated by the application of the torch fuel under pressure to generate the arc. The arc is caused to migrate about the space between the electrodes by the impingement of the fuel flowing through the space.