Abstract: The invention relates to a support means for an actuating arm which is pivotally movable into and out of engagement with a stop element of a spring control element of a spring clutch. The support means includes a frame having a suitable opening for slidably receiving the actuating arm and a retaining member resiliently gripping the frame to retain the actuating arm in the opening in the frame.

Abstract: An improved oil seal arrangement for a rotary engine in which one side of the rotor has an adapter ring attached thereto with the ring having circumferentially-spaced ribs aligned with the internal partitions of the rotor and in which the outer periphery of the adapter ring has an annular notch to provide an annular recess between the ring and rotor to receive therein an oil seal assembly, and in which the other side of the rotor has a gear ring attached to the rotor with the gear ring having circumferentially-spaced ribs aligned with the internal partitions of the rotor and in which the outer periphery of the rotor gear ring has an annular notch to provide an annular recess between the gear ring and rotor to receive an oil seal assembly.

Abstract: A composite rotor construction for a rotary engine in which the rotor gear has a self-centering spline connection to a steel sleeve having a tight fit in the rotor bore.

Abstract: A system and apparatus for controlling excessive vibration of a rotating shaft at critical speed or when a large imbalance suddenly occurs, comprising an emergency bearing having sufficient radial clearance that it does not normally engage the shaft, and located longitudinally at a portion of the shaft which is sensitive to excessive vibration, and where it will raise the critical speed of the shaft system when additional support is added at that position. The bearing is of inexpensive construction and of such design that it requires no lubrication during the period when the shaft is passing through the critical speed and the bearing is operative.

Abstract: A multi-piece apex seal for a rotary engine in which the seal includes a main seal piece and corner seal piece at one or both ends of the main seal piece and in which at least one of the adjacent engaging surfaces of the main seal piece and a corner seal piece is arcuate to insure a flat fit between the corner seal piece and the adjacent housing end wall.

Abstract: A rotary combustion engine having two fuel nozzles for discharging fuel into each engine working chamber with fuel being discharged from only one of the nozzles during low power operation of the engine and being discharged from both nozzles during high power operation of the engine.

Abstract: The system and method of this invention is directed to effecting combustion of fuel in a rotary piston, internal combustion engine having a housing defining a trochoidal-shaped, multi-lobe cavity in which a rotor is mounted for planetary rotation and defines with the housing working chambers that successively expand and contract in volumetric size as the rotor orbits within the housing cavity. The system and method comprises a precombustion chamber which communicates with successive working chambers through an outlet port. When the outlet port is open to the working chamber at approximately the initiation of the expansion cycle of the working chamber, all the fuel for a particular engine operating condition of speed and load is mixed in the precombustion chamber with a relatively small quantity of air at a pressure substantially greater than the pressure in the working chamber to thereby cause ignition and flash of the fuel into the working chamber.

Abstract: The method of inspecting shot peened surfaces of a workpiece for the extent of coverage comprises coating the surface to be peened of a workpiece with a material containing a fluorescent dye and then shot peening the part to be peened until the amount of fluorescent coating remaining, as indicated by the amount of fluorescent radiation given off when exposed to ultraviolet light, compares with the amount of fluorescent radiation given off from a previously prepared control specimen which has the same material characteristics as the workpiece and was coated with the same fluorescent material and shot peened to a desired coverage.

Abstract: A rotary combustion engine designed for operation as a stratified charge engine in which a relatively lean fuel-air mixture is supplied to each engine working chamber through the main air intake port and in which just prior to combustion in each engine working chamber, a relatively-rich, high-pressure, fuel-air mixture is supplied to each working chamber through individual passages in the rotor for each working chamber.

Abstract: A trochoidal type rotary internal combustion engine wherein the intake port is controlled by the rotor, and variation in the fuel feed is provided by a slidable valve member in the intake pipe, which in closed position seats very close to the peripheral surface of the engine cavity to prevent entry of exhaust gas into the intake line at idling or low load conditions, the valve being controlled by a foot pedal or other conventional adjusting means.

Abstract: A rotary internal combustion engine of trochoidal type, having a fuel-air intake port in a side wall thereof, with a rotary valve disposed immediately adjacent to the port and serving as a throttling means as well as controlling the timing of port closing.