Abstract: In a gas pressure increasing system for increasing the pressure of a refrigerant gas or air having a scroll compressor, a condenser, a pressure reducing means and an evaporator or a scroll compressor and a gas cooler, an exhaust gas released from the scroll compressor after having its pressure increased by the scroll compressor itself is cooled and expanded to reduce its pressure to an intermediate pressure level to produce a gas of an intermediate pressure having a cooling capability. The gas of the intermediate pressure is used to provide a force for axially sealing an orbiting scroll member of the scroll compressor as well as to cool the scroll compressor and a motor.

Abstract: Peripherally-driven scroll apparatus. The orbiting scroll member is attached through radially-compliant linking means to eccentrics mounted on three equally spaced crankshafts to accommodate differential thermal expansion without the generation of any appreciable elastic forces to increase bearing loads. Means are provided to prevent axial deflections in the stationary scroll members while permitting their supports to be designed and constructed for strength rather than stiffness. The apparatus may be staged and employed as a compressor or expander.

Abstract: A balanced fluid pressure device of the type including a housing in which a gerotor gear set and a shaft are supported. The gear set includes an externally toothed star gear and an internally toothed ring gear. An eccentric drive mechanism connects the ring gear with the housing so as to establish orbital movement of the ring gear. The star gear orbits within and rotates relative to the ring gear, and is connected with the shaft by another eccentric drive mechanism so as to establish rotational movement of the shaft. The mass and orbit of each gear are such that centrifugal forces developed upon orbiting thereof are substantially equal and opposite, with the result that inertial loading is substantially balanced.

Abstract: A rotary compressor and process of compressing compressible fluids wherein the compressor comprises a housing having at least two axially spaced walls and rotatable in relation to the housing piston and cylinder-piston journaled on eccentric portions of two oppositely rotatable shafts. The piston and cylinder-piston form moveable walls, and axially spaced walls of the housing form stationary walls of at least two compression chambers. Circulated fluid is drawn into the compression chambers through intake ports and is discharged through discharge valves.

Abstract: A rotary compressor and process of compressing compressible fluids wherein the compressor comprises a housing having at least two axially spaced walls and rotatable in relation to the housing piston and cylinder-piston elements journaled on eccentric portions of two oppositely rotatable shafts. The piston and cylinder-piston form moveable walls, and axially spaced walls of the housing form stationary walls of at least two compression chambers. Circulated fluid is drawn into the compression chambers through intake valves and is discharged through discharge valves.

Abstract: A rotary compressor and process of compressing compressible fluids wherein the compressor comprises a housing having two axially spaced walls and rotatable in relation to the housing piston and cylinder-piston journaled on eccentric portions of two oppositely rotatable shafts. The piston and cylinder-piston elements form moveable walls, and axially spaced walls of the housing form stationary walls of a compression chamber. Circulated fluid is drawn into the compression chamber through intake valve or valves and is discharged through discharge valve or valves.

Abstract: A rotary compressor and process of compressing compressible fluids wherein the compressor comprises a housing having two axially spaced walls and rotatable in relation to the housing piston and cylinder-piston journaled on eccentric portions of two oppositely rotatable shafts. The piston and cylinder-piston form moveable walls, and axially spaced walls of the housing form stationary walls of a compression chamber. Circulated fluid is drawn into the compression chamber through intake port or ports and is discharged through discharge valve or valves.

Abstract: A rotary mechanism such as a rotary combustion engine, compressor, expansion engine or the like in which the shaft has a first counterweight diametrically opposed to the shaft eccentric on which the rotor is journaled and in which the shaft has sleeve-type bearings on opposite sides of said counterweight and a second counterweight is provided outboard of said bearings and disposed ahead of said shaft eccentric by an angle of approximately 90.degree. as measured about the shaft axis in the direction of shaft rotation.

Abstract: Scroll apparatus for pumping liquids wherein recessed liquid transfer passage means are provided in the end plates of the scroll members. The transfer passage means may be inner passages within the scroll involutes, outer passages outside the scroll involutes or a combination of inner and outer passages. These passages are located and configured to be opened substantially immediately after the orbiting involute wrap has reached that point in its orbiting cycle to define three essentially completely sealed-off liquid zones. These passages remain open at least until the liquid passages between the wraps are sufficiently large to prevent any substantial pressure pulsations within the scroll liquid pump. The scroll liquid pumps may be operated to pump liquid radially inward or outward.

Abstract: This invention relates to an improvement in a rotary piston machine of trochoidal construction having a piston mounted on an eccentric shaft in a housing delimited on both sides by side walls, said piston being rotated by a follower gearing, one part of which is rigidly connected with the piston, the improvement comprising eccentrically-rotatable shaft means in two bearing means which are eccentric with respect to each other and one of which is radially within the other, said shaft means supporting said piston and the part of the follower gearing rigidly connected therewith.

Abstract: The rotary machine comprises: a stationary housing having an interior profile defining a monolobic configuration; a rotary cylindrical body arranged eccentrically in the housing and including a series of arc-shaped segments mounted in circular alignment in the housing and spaced to define therebetween a series of radial slots; interfitted double vanes slidably received in the slots; and counterweight means mounted in the body and disposed adjacent each blade portion of the double vanes; during rotation of the body, the counterweight means at one end of one double vane gradually opposes the movement of the said one double vane while, simultaneously, at the opposite end of the same double vane, the counterweight means are gradually removed from this opposite end of the blade portion whereby the centrifugal forces acting on the double vanes are balanced and vane pressure on the housing is minimized.

Abstract: Rotary internal combustion engine of axial sliding vane type has sinusoidal shaped side walls with compensation of the mass forces allowing nearly friction-free and high speed operation with sufficient compression ratio. High power output is believed to make the invention comparable to the well-known Wankel engine.The various designs of the rotary machines can also be used as fluid pumps or fluid-operated motors.

Abstract: Cooling means are provided for the stationary and orbiting scroll members of scroll-type apparatus. These cooling means comprise fluid coolant channels in the end plates and in the involute wraps of the scroll members and means to circulate a fluid coolant therethrough. In the case of the stationary scroll member the coolant may be water, oil or the like; while in the case of the orbiting scroll member the coolant is the lubricating oil used to lubricate a thrust bearing and the coupling means. The resulting effective cooling of the scroll members makes it possible to form scroll apparatus in large sizes.

Abstract: An external gear type fluid power motor wherein a rotor receives two groups of gears each including a sun gear and one or more planet pinions. The sun gears are coaxial with each other; one thereof is fixed and the other drives an output shaft. Each planet pinion of one group is integral with a planet pinion of the other group or is nonrotatably coupled to it by an oldham coupling. Pressurized fluid is admitted by way of passages machined into a supporting member which is rigid with the housing and rotatably supports one end of the rotor. Such fluid flows through passages in the rotor and rotates the planet pinion or pinions of one or both groups whereby the planet pinion or pinions of one group roll along the fixed sun gear to drive the rotor and to cause the planet pinion or pinions of the other group to roll about the other sun gear which thereby rotates the output shaft. The stubs of the gears can be mounted in discrete bearing members or in covers which form part of the rotor.

Abstract: The disclosure herein describes a vane-type rotary internal combustion engine which includes two separate housings, a compressor housing and a motor housing; each housing includes an interior profile of a first order configuration with constant diametrical chord. A rotor is rotatably mounted in each housing and includes a series of arc-shaped segments disposed in circular alignment in the housing and equally spaced to define therebetween a series of elongated radial openings. The rotor of each housing includes also a system of partially unbalanced vanes slidably mounted in these openings and bearing at each extremity thereof against the interior profile of the related housing; each vane defines in the housing chambers of variable volume depending on the relative rotational position of each segment with respect to the housing profile. Both housings are similarly structured with the exception that the compressor housing includes two sections of constant radius.

Abstract: The disclosure herein describes a compressor that includes: a housing with an interior profile of a first order configuration with constant diametrical chord, a rotor including a series of arc-shaped segments disposed in circular alignment in the housing and equally spaced to define therebetween a series of elongated radial openings, a system of partially unbalanced vanes slidably mounted in the openings and bearing at each extremity thereof against the interior profile of the housing. Each vane defines in the housing chambers of variable volume depending on the relative rotational position of each segment with respect to the housing profile. Intake means are provided for introducing a compressible fluid in one of the chamber while exhaust means are provided for discharging the compressed fluid from an other of the chambers.

Abstract: A rotary vanes type motor having a plurality of vane mounted for reciprocal movement in a housing in a radial direction with respect to a shaft journalled in the housing. A piston member is eccentrically mounted on the shaft in the housing so that the piston member will orbit without rotation in the housing as the shaft rotates. The vanes are connected to the piston member so as to reciprocate when the piston member orbits. The housing, vanes, and piston member defining a plurality of chambers to which a working fluid may be admitted in sequence to induce orbiting of the piston member and resulting rotation of the shaft.