Abstract: A rotary compressor for compressing fluid. A housing having a cylindrical internal cavity is provided with vanes and delivery ports. A rotor is rotatably mounted in the housing. The rotor has a portion for making a sealing contact with the inner peripheral surface of the housing. The rotor has a suction chamber formed therein. The number of the vanes is greater by 1 (one) than the number of the sealing contacts between the rotor and the inner peripheral surface of the housing. At least one suction port is formed through the wall of the rotor, so that the fluid in the suction chamber may be sucked into the working chamber defined by the vanes, rotor and the housing. The suction port is so located that, when a working chamber has been expanded to its maximum volume, the suction port is positioned between the vane located at the leading side of the working chamber as viewed in the direction or rotation of the rotor and the sealing portion closer to the vane.

Abstract: A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an annular piston concentric with and fitted over the rotor making sliding sealing engagement with both end plates. An abutment centered preferably between 10:00 and 10:30 o'clock on the stator seals the space between the cylinder and piston from endplate to endplate and forms the counterclockwise end of a combustion-expansion chamber. A second abutment, centered preferably between 1:30 and 2:00 o'clock, seals the space between the cylinder and piston from endplate to endplate and forms the clockwise end of the combustion-expansion chamber. The combustion chamber centered at 12:00 o'clock comprises a shallow arcuate cavity adjacent the path of the piston and opening into the cylinder.

Abstract: A worm type compressor comprises a cylindrical worm provided with a plurality of spiral-like passages in its inner periphery for forming fluid sealing chambers, a rotor slidably disposed within the worm and provided with an internal fluid outlet opening for discharging a compressed fluid and a pinion gear disposed within the rotor so as to be rotated about an axis perpendicular to and away from the rotor axis while engaged with the spiral-like passages.A worm type compressor further comprises a compressed fluid escape means which is provided in each of the finishing portions of the spiral-like passages of the worm for letting the compressed fluid escape from each of the spiral-like passages in the final stage of the fluid compressing step.

Abstract: A rotary expansion power unit, such as a steam engine, which has a planetating rotor in a housing having an epitrochoidal cavity. In known engines, hot expansion fluid is directed through a hollow interior in the rotor and surrounds the rotor journal bearing. This leads to excessive expansion of the rotor and requires an excessive flow of cooling oil to the bearing. The invention isolates the expansion fluid from the interior of the rotor by having a valve disc fastened to the rotor crankshaft with a first seal means between the valve disc and housing end wall and a second seal means between the valve disc and rotor.

Abstract: A combined lift and metering pump includes a set of relatively rotating pump elements in the form of an outer gear and a eccentrically disposed inner gear fixed on a drive shaft. A regulator communicates through a control passage with a discharge chamber of the pump to regulate fuel pressure in the discharge chamber and a metering orifice formed through the outer gear provides for intermittent communication with a timing port once with each revolution of the outer gear for discharging a metered amount of fuel from the discharge chamber.

Abstract: A rotary displacement pump comprising a casing including a cylindrical in surface defining a stator chamber with an inlet and an outlet connected thereto. A cylindrical displacement body is movably mounted within the stator chamber having an outer surface which is movable into close association with the cylindrical inner surface along a line. A shaft is provided with an eccentric connected to the displacement body with a bearing to eccentrically move the displacement body within the stator chamber and move the line of close association in a circular path within the stator chamber. Gas tight spring bodies are connected between the displacement body and the casing for preventing rotation of the displacement body with respect to the casing and the displacement body is provided with first and second slide sealing members for dividing the stator chamber into an inlet base and an outlet base.

Abstract: In a rotary piston machine the main rotary piston makes sealing engagement with at least one end wall of the main rotor bore and at least one inlet port is provided in that end wall and is located within the compass of the cylindrical portion of the main rotary piston, the main rotary piston is cut-away to open the inlet port to the working spaces of the machine, which are defined by the main and auxiliary rotor bores, the outer peripheries of the rotary pistons and the end walls of the housing, in order to induce working fluid into such spaces.

Abstract: A rotary machine with lenticular pistons and valves usable for internal and external combustion engines, expansion motors and pumps. A flat central stator housing is provided with two lateral cover housings. A plurality of rotating elements enclose the interior of the stator housing and rotate on stationary parallel shafts pivoted on bearings inside the cover housing. The parallel shafts are interconnected by a synchronizing gear train which causes the shafts to rotate in one direction and at the same angular speed. A cylindrical central cavity extends in the central stator housing throughout its entire thickness, and intersects smaller cylindrical equidistant surfaces distributed around the periphery. The cylindrical equidistant surfaces contact the cavity by a rotor-piston with lenticular cross section with associated valves also of lenticular cross section and surrounding the rotor-piston. The rotor-piston and rotor valves maintain continuous contact and form hermetic chambers of variable volumes.

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: A vane pump having a rotor with a plurality of vanes movably carried in slots in the rotor and having their positions controlled by a cam ring surrounding the rotor and with port means for supplying fluid to the spaces between the vanes and withdrawing fluid under pressure from said spaces with additional port means coacting with a selected number of a plurality of passages in the rotor and associated one with each of the spaces between successive vanes whereby the spaces between vanes are filled in the conventional manner together with the additional filling action through the passages in the rotor.

Abstract: A rotary piston machine is provided in which the, or each, auxiliary rotary piston has a portion projecting axially beyond at least one end face of the main rotary piston, and in which a transfer port is provided in an end wall of the main rotor bore leading to the part of the auxiliary rotor bore containing said projecting portion of the auxiliary rotary piston and a discharge port is provided leading from said part of the auxiliary rotor bore at a position spaced from the transfer port, said projecting part of the auxiliary rotary piston providing a rotary valve for opening and closing communication between the transfer port and the discharge port at the required times during the rotational cycle of the machine.

Abstract: To allow a large built-in volume ratio of a vane type compressor, the outer circumferential surface of the rotor is provided in each working chamber with an indentation located next to the leading one of the two vanes partly defining the chamber, thereby increasing the through-flow area of the outlet space of the chamber through which it communicates with the stator's outlet port during the exhaust of compressed gas from the chamber.

Abstract: A rotative machine for fluids comprising a plate with spiral-like passages (stator), facing a disc (rotor) mounted for rotation relative to the stator on a common axis and carrying, on its face in front of the passages, vane wheels mounted for rotation on axes transverse to the said common axis whose vanes circulate in the passages where they form fluid compartments completed by the cooperating surfaces of the stator and of the rotor covering the passages.In one embodiment, a rotor faces the first and second stators, respectively, and has vane wheels cooperating, by their diametrically opposite parts, simultaneously with the passages of the first and second stators between an inlet chamber and an outlet chamber. The fluid entering the machine is thus directed towards one and the other inlet chambers and the outlet chambers of the two stators are connected to a common outlet of the machine.

Abstract: The disclosure relates to a rotary machine, the basic elements of which are generically adapted for use as a two-stage pneumatic compressor or as a four-cycle combustion engine or as a two-cycle combustion engine. The basic combination of elements of the machine comprises a plurality of rotors rotatably mounted on axes disposed at substantially right angles to each other and wherein the rotors are provided with peripheral portions having inwardly notched or recessed chamber portions which are disposed between alternate radially extending lobe portions.

Abstract: A rotary combustion engine having a rotor with separate ignition-exhaust ports which extend from one rotor flank to the same rotor side and open to a spark plug in the opposite stationary side wall during rotor rotation to provide for ignition of the charge in the connected chamber and after the expansion phase in addition open to an exhaust port in the same side wall to exhaust the products of combustion.

Abstract: This invention relates to an improvement in a rotary piston machine of trochoidal construction for transporting a fluid medium, having working chambers formed between a trochoidal piston and a housing corresponding to the coordinated outer envelope curve, said chambers being separated from each other by radial seals in the housing, wherein the medium is supplied through openings within the inner envelope curve in the housing side wall and in a recess in the piston and passes from the recess by way of control openings in the peripheral piston surface to the working chamber, and having outlet openings in the housing closed-off by check valves, the improvement comprisingA. the piston has the form of a saddle-free epitrochoid 1:1,B. the supply openings in the housing side wall are in the area of the radial seals,C.

Abstract: A rotary compressor in which a slice is cut back under one rotor flank and continuous groove is cut in the rotor housing cover adjacent the slice and intersecting it. The two adjacent rotor flanks can be ported to prevent pressure buildup therein. This arrangement permits the volume under the modified rotor flank to be in constant communication with the compressor output and produce a true sinusoidally varying pressure output.

Abstract: This invention relates to an improvement in a rotary piston machine of trochoidal construction for compressing a gaseous medium having working chambers between a trochoidal piston and a housing corresponding to the coordinated outer envelope curve, said working chambers being separated from each other by radial seals in the housing, and outlet openings closed-off by means preventing backflow for discharging medium from the working chambers, the improvement comprising trough-shaped recess means in the peripheral piston surface which, in the dead center position of the piston, are positioned immediately ahead of a radial seal.