Abstract: The invention is concerned with an improvement in a movable vane assembly of the type used in a gas turbine engine or compressor for interaction with a gas stream.

Abstract: A rotary combustion engine in which at least a portion of each of the rotor working surfaces is covered by an insert to raise the operating temperatures of said surfaces, the insert being secured to the rotor by a tongue and groove fit.

Abstract: A rotary piston engine having fuel-air inlets controlled by the piston and which supply a stratified charge to the inlet chamber of the engine. The inlets comprise first inlets which are opened first and which supply a lean mixture along the sides of the cavity in which the piston moves and second inlets which supply a rich material to the central region of the cavity. Ignition of the rich mixture promotes complete combustion with a minimum of undesired combustion products, such as oxides of nitrogen, carbon monoxide, and the like.

Abstract: A rotary internal combustion engine having a variable rotary throttle valve in the engine intake passage immediately adjacent to the discharge end of said passage with the axis of the rotary valve being disposed substantially at right angles to the engine internal surface through which the discharge end of said passage opens.

Abstract: A system for protecting a machine against thermal overload, in particular, a compressor, and more particularly still, in respect of thermal protection of the valving of a compressor. The compressor is provided with a heat sensitive element in close proximity to the valving and in good heat exchange relation with gas passing through the valving, particularly, the gas being discharged through the valving. The heat sensitive element is connected in controlling relation to the drive motor for the compressor.

Abstract: A gas pilot burner arrangement in which only air from the blower discharge plenum connected to the main gas burner is initially supplied to the pilot burner to mix with gas being supplied to the pilot burner through the pilot gas conduit and when a flame sensor is activated to prove that the pilot is lit a valve is electrically activated to flow gas to the main burner and simultaneously provide a premix of raw gas and air to the pilot burner in addition to the gas admitted to the pilot through the pilot gas conduit.

Abstract: Disclosed herein is a rotary piston engine comprising a housing assembly including a trochoid housing and a pair of end housings aligned and secured together to define a trochoid cavity, a shaft rotatably supported in the end housings and having an eccentric portion disposed in the trochoid cavity, a rotary piston rotatably supported on the eccentric portion of the shaft and extending within the trochoid cavity, the rotary piston having an internal timing gear, a stationary gear separate from the end housings and in mesh with the internal timing gear, a female member extending integrally from one of the end housings and being disposed adjacent to the trochoid housing, the female member having a registering surface in predetermined fixed relation relative to the end housing, and a male member extending integrally from the stationary gear, the male member being pressed into the female member and held in non-rotatable relation by the registering surface.

Abstract: Rotary piston engine having a rotor housing applied with a pin-point type porous chromium plating having porosity of 10 to 60 percent and a hardness of 930 to 1200 in Vicker's scale. The engine also has a rotor having apex seals each constituted by cast iron based material. Each apex seal has a sliding surface including 50 to 70 volume percent of carbides and a hardness of 700 to 900 in Vicker's scale.

Abstract: A rotary piston engine in which the housing has an opening in at least one end wall that is controlled by the piston. The end seals on the piston and the sealing bolts at the juncture thereof are located radially inwardly from the opening, while the corner seals of the piston have legs at the ends of the piston extending to the sealing bolts. The corner seals are disposed in planes which in the radially inward direction diverge from the radial planes of the piston passing through the corners of the piston.

Abstract: An internal combustion engine including a housing having interior walls defining an operating chamber, a piston mounted for movement within the chamber and carrying at least one seal for sealing against an interior wall, an output shaft associated with the piston and journalled in the housing, an exhaust port in one of the interior walls comprises of a series of openings extending through the wall into the chamber and spaced from one another by bridging elements forming part of the housing. Coolant passages are disposed at each of the bridging elements so that the same are cooled to maintain a good oil film at the exhaust port to minimize wear of the seal and to support the seal as it moves across the exhaust port.

Abstract: A rotary piston engine has a plurality of sealing elements, each of which includes a cylindrical stationary bearing portion pressed into the rotor and at least one curved blade extending therefrom. The curved blade engages the race of the stator and is adapted to pivot into a curved recess in the rotor. The sealing elements may have a second curved blade extending from the stationary bearing portion oppositely from the first blade. The underneath side of the blades nearest the stator may have longitudinal grooves provided therein to facilitate their lifting from the stator surface. The sealing elements may be made from plastic or may be a two piece construction of plastic and metal.

Abstract: A vane pump has a cam member carried upon a drive shaft in coaxial relationship therewith. The axial sides of the cam member define annular cam surfaces which each engage an array of vanes disposed in a fixedly mounted stator. An interior portion of the drive shaft is hollowed to provide a fluid inlet to passages in the cam member which communicate with the cam surfaces. The cam member is provided with additional passages to receive discharge flow from intervane volumes and direct such flow to the radially outer periphery of the cam member.

Abstract: A unidirectional rotary expansion steam power unit which is free from external valving arrangements and independent starting mechanisms, and which is adapted for multiple use in a system selectively using direct energization and compounding of the units. The power fluid is supplied through a hollow rotor, and is conducted to working chambers and exhausted therefrom by strategically located passages in the walls of a housing, under the control of seal means carried by the rotor.

Abstract: An improved slant axis rotary mechanism of the type including a housing defining a chamber having a radially outer spherical wall and a radially inner spherical wall interconnected by opposed, generally radially extending side walls. A shaft is journalled within the housing and has an angularly offset portion within the chamber. A rotor is within the chamber and journalled on the angularly offset portion. The mechanism is provided with an improved cooling system including a plurality of coolant receiving conduits in the walls in close proximity to the chamber. A thin, wear resistant layer is disposed on the walls within the chamber and interiorly of the conduits. The conduits are located closely adjacent the intersections of the side walls and the spherical walls to provide excellent cooling.

Abstract: In a sliding vane machine a work can be accomplished by a pressure fluid rotating a rotor provided with a plurality of sliding vanes, which function as turbine blades, whereby the work is taken out as a rotational motion at the rotor shaft. If the machine is designed as a pump the shaft is rotated and the vanes act as impeller blades.In both cases it is desirous if the machine can adapt its work in response to varying loads.In accordance with the invention this is achieved by providing the machine with pressure plates controlling the effective working area of said vanes, the pressure plates thereby being adjusted by a fluid pressure which by means of a pressure actuated valve can be varied the pressure-actuated valve itself being controlled by the fluid pressure in a conduit supplying the pressure fluid to the machine.

Abstract: A mechanically or electrically actuated barbeque blower that may be removably secured to the rolled upper edge of a barbeque fire box or other desired portion of the barbeque unit to generate a draft in a desired direction that is of material assistance in igniting all of the charcoal briquettes in the fire box, as well as maintaining the briquettes in a glowing heat-emitting condition.

Abstract: A brake pedal assembly including a pivotally supported base member carrying an arcuate shank having a radius of curvature equal to the radius of the arm of the pedal. The shank is removably fastened to the base member and a pedal pad is removably fastened to the arcuate portion of the shank for easy assembly of the brake pedal on the tractor.

Abstract: The improved apex seal assembly for a rotary piston of multi-corner profile having a plurality of contiguous peripheral surfaces intersecting at apex portions comprises a seal blade means receivable in a radial slot in each apex portion and an intermediate seal pin means for each apex portion and disposed in and rotatable relative to a bore communicating with the slot. The intermediate seal pin means is so formed as to have a sealing edge portion. A spring is located to exert a force on the intermediate seal pin means offset from its longitudinal axis so as to urge the intermediate seal pin means to rotate in a direction to maintain the sealing edge portion thereof into engagement against the seal blade means regardless of the amount and changes in differential gas pressure across the seal blade means.

Abstract: A parking brake mechanism for a motorcycle having a rear brake pedal which is to be depressed for applying a brake on a rear road wheel. An annular ratchet wheel is rigidly connected to the pivoted end of the rear brake pedal for simultaneous rotation therewith, and one or more pawls pivotally mounted within the ratchet wheel are spring biased into engagement with teeth formed on its inside surface. Normally, the pawls are held out of engagement with the ratchet teeth by a rotary cam ring. Upon angular displacement of this cam ring relative to the pawls, the ratchet mechanism functions to permit the rear brake pedal to be depressed but to prevent its return motion. The cam ring can be actuated either by a retractable footrest or by a hand lever on the steering handle of the motorcycle.

Abstract: The system comprises a plurality of engine subassemblies having double-acting pistons, for generating power and pressuring fluid for work. Each piston undergoes a power stroke, under the influence of energized fluid addressed thereto and, during the power stroke, the piston(s) pressurizes fluid for powering ancillary fluid-powered machines. The latter fluid is admitted through channels formed in the pistons to lubricate the pistons in their reciprocation in cylinders. Each of the cylinders is enclosed in a surrounding coolant chamber. A carrier element is employed for effecting a common translation of all pistons, and the carrier element supports extending actuators which, through a "lost motion" arrangement, actuate a valve-operating system coupled to the heads of the cylinders. Limit-stop springs, interposed between the carrier element and housings (which confine the cylinders) delimit the travel of the pistons.