Abstract: A variable capacity compressor for an air conditioning system. A passage extends between a suction chamber and a high-pressure chamber, in which is arranged a control valve device having a pressure-responsive portion displaceable in response to change in pressure within the passage. A capacity control device controls the delivery quantity of the compressor in response to opening and closing of the passage by the control valve device. The control valve device opens and closes the passage in response to change in pressure within the suction chamber representative of a thermal load on the air conditioning system to thereby cause the capacity control device to vary the delivery quantity of the compressor. An auxiliary low-pressure chamber is provided in the passage, within which the pressure-responsive portion is disposed. A restriction hole communicates the suction chamber with the auxiliary low-pressure chamber for introducing pressure within the suction chamber into the auxiliary low-pressure chamber.

Abstract: A wobble plate compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a crank chamber and a cylinder block. A plurality of cylinders is formed in the cylinder block. A drive shaft is rotatably supported in the housing. A rotor is fixed on the drive shaft and is hingedly connected to an inclined plate through a hinge mechanism. The hinge mechanism includes a first arm portion which is formed on either the rotor or inclined plate, a second arm portion having an elongated hole on the other of the rotor or the inclined plate, and a guide pin fixedly disposed in the hole of the first arm portion. A wobble portion is disposed adjacent the inclined plate and converts rotational motion of the inclined plate into nutational motion. A plurality of pistons are coupled to the wobble plate through a plurality of piston rods. Each piston is reciprocatingly fitted within a respective one of the cylinders.

Abstract: A hydraulic pump/motor in which working piston elements are arranged for radial reciprocation. A cam is arranged eccentrically to a rotor which carries the pistons. Fluid cavities are provided in feet on the pistons, in the faces of a polygon to which the feet are attacahed, and in bearing pads in the outer ends of the cylinders to provide hydrostatic balancing. The pistons are hollow and are equipped with check valves to prevent centrifugal force from expelling fluid from the polygon and foot cavities. The cam includes mating spherical surfaces which compensate for bending forces applied to the cam. An improved mechanism for adjusting the cam position uses inherent forces to eliminate the need for a power assist device for cam adjustment. Port plates on opposite sides of the rotor provide inlet to the unit near the axis of the unit and outlet near the outer edge to alleviate stresses and increase efficiency.

Abstract: Method and apparatus for transporting particulate material through a pipeline. The particles have a size distribution which provides a solids density of at least 85%. The particular have a maximum size of 20% of the bore.

Abstract: A multi-cylinder piston-operated compressor having a combined cylinder block closed on both axial ends by front and rear housing and provided therein with a reciprocative piston mechanism, for sucking, compressing, and discharging a refrigerant gas, and a connecting flange, from which the refrigerant gas after compression is sent toward a cooling circuit. The connecting flange defines a muffling chamber in cooperation with a circumferential section of the combined cylinder block for suppressing the pulsation in discharge pressure of the refrigerant gas. The compressor further has a gas expansion chamber in which an expansion and a partial collision of the compressed refrigerant gas spouted from orifices take plate to weaken the pulsation in the discharge pressure of the gas with the least discharge loss.

Abstract: A method for controlling the operation of a variable displacement refrigerant compressor arranged in a car air-conditioner circuit and driven by a car engine via a solenoid clutch is carried out in a manner such that, when a car engine rotating speed is lower than an idling speed and when either one of a brake pedal or a manual brake of the car is released after temporary stoppage of the car, a control device having a CPU unit therein issues a control signal to cause a displacement varying wobble plate element of the variable displacement refrigerant compressor to be always moved angularly to a predetermined position to obtain a minimum displacement condition of the compressor, so that the compressor is restarted from the minimum displacement condition when the car is restarted after a temporary stoppage thereof at, e.g., an intersection of a vehicle road.

Abstract: A variable capacity type compressor in which a control element is mounted in one of side blocks formed with inlet ports for rotation about its own axis in opposite circumferential directions between a first extreme position providing the maximum capacity of the compressor, and a second extreme position providing the minimum capacity of the compressor, to vary the compression starting timing. The control element has cut-out portions through which compression medium is drawn into compression spaces, of which one upstream end with respect to the direction of rotor rotation determines the compression starting timing in cooperation with vanes passing same. The cut-out portion is formed of first and second portions circumferentially arranged.

Abstract: A pulsation preventive member for use with a pump constructed in the form of a hose disposed in a pump fluid passage. The hose is located in a fuel tank in such a manner that one end of the hose is connected with the pump and the other end of the hose is connected with a injector or the like. The hose is constructed so as to substantially inhibit pulsation by elastically deforming. The hose may have a substantially circular cross-sectional shape and a mesh-shaped thread layer incorporated therein. The mesh angle of the thread layer is preferably less than 50 degrees. Alternatively, the hose may have non-circular cross-sectional shape such as rectangular or elliptical cross-sectional shape. Further, the hose may be constructed so as to have a double-walled structure comprising an inner layer and an outer layer in the form of a hose with a plurality of connecting members interposed therebetween.

Abstract: A wobble plate of the type for operating in a variable displacement compressor including a plurality of pistons operatively connected to the wobble plate by a plurality of dumb-bell like piston rods having spherical end portions and a connecting rod extending therebetween. The wobble plate includes a plurality of sockets including an integral lip for retaining the spherical portion of the piston rods contained within each of the sockets against axial displacement and a passageway extending radially outwardly from each of the sockets and opening to a peripheral edge of the wobble plate for allowing insertion of the piston rods from a direction substantially perpendicular relative to the central axis of the wobble plate. Plugs disposed within the passageway prevent inadvertent radial displacement of the spherical ends of the rod members from the sockets.

Abstract: A variable-delivery vane-type rotary compressor includes means for controlling discharge by-passed from an actuating chamber and an inhalator chamber by changing area of opening provided between a front plate and a cam ring. The means can control discharge by rotation of a disc having at least one by-pass opening. The disc can rotate in accordance with signals produced from at least one sensor.

Abstract: The device disclosed is intended for the exit stage of a packaging line, in particulr a line for the manufacture of packs of cigarettes, in which an exit conveyor indexes a continuous string of packs toward respective pockets created in an indexing transfer wheel that rotates about an axis parallel to the path of movement established by the conveyor. The transfer wheel and the conveyor are both driven from one motor, the wheel via a direct transmission link, and the conveyor via a differential operated by a transducer that serves to establish the exact position occupied by each single pack in relation to the transfer wheel on arrival at a reference point situated in the path followed along the conveyor toward the wheel.

Abstract: A pump-off control for a pumpjack unit. The pumpjack unit has a flow line therefrom connected to a tank battery. A control device is connected in the flow line so that all of the production must flow therethrough. The control apparatus includes an orifice placed in the flow line and a bypass arranged for flow to occur around the orifice. A movable member is placed within the bypass and each stroke of the pumpjack moves the member in proportion to the quantity of liquid flowing therethrough. The movable member is connected to actuate a switch device, indicator, chart, and counter. The orifice is sized respective to the movable member so that each stroke of the pumpjace causes the movable member to move in proportion to the produced fluid forced through the bypass. The switch device is positioned to be actuated at a predetermined flow rate each stroke of the pump.

Abstract: A displacement pump bypass valve having an integral pressure modulator in a piston of the valve, the piston located in a bore formed through the pump housing between the pump inlet and pump outlet, the piston having an internal, cylindrical expansion chamber which fluidly communicates with the pump outlet via an opening formed through one end of the piston. A modulator disc is located in the expansion chamber for axial movement therein to vary the expansion chamber volume, and a spring in the expansion chamber urges the modulator disc toward the opening in the expansion chamber.

Abstract: A power source (14) rotates an eccentric (20) engaged within the center of a relatively large drive roller (22) to rotate the drive roller while simultaneously orbiting the center of the drive roller about a circular path so as to cyclically advance and retract from piston assemblies (24) located within pump assemblies (16a-16d). Rotation of the eccentric (20) causes each piston assembly (24) to cyclically advance against and retract from a flexible diaphragm (26) to cause fluid entering the pump assembly to be forced out under pressure. Each diaphragm (26) is "backed" by a spring-loaded support (27) that resiliently pushes against the side of the diaphragm opposite the piston assembly.

Abstract: An appliance for simulating playing of the game of golf on a suitable playing area. The appliance includes an arm (1) at the end of which is fixed a striking member (2) in the form of a golf club of reduced size contained substantially in the same plane as the arm (1). This golf club conventionally includes a stem (3) fixed at one end to the arm (1) and carrying at its opposite end a head (4), the stem (3) and the arm (1) forming an elbow so that a ball (8) is struck by rotation of the arm (1) about its axis without intervention of mechanical transmission means.

Abstract: A microprocessor gaming device for use in combination with a cash register which makes a random selection of prize or no prize conditions upon each actuation of the cash register, and which includes a visual display showing prize or no prize selection for each transaction as well as a printer assembly which may be periodically actuated to print out retrievably stored data in the form of a record of all winning and losing indications including prize value for a predetermined accounting period.

Abstract: A vacuum pump includes two pairs of piston and cylinder assemblies mounted on opposite sides of a crankshaft in a common plane with the gas inlets for the first and second cylinders of a first pair of piston and cylinder assemblies being connected to the device to be evacuated and the gas outlets thereof being connected to a common outlet having a spring biased one-way valve controlling the outlet and to a passage connected to the inlet of a third cylinder in said second pair of piston and cylinder assemblies. The gas outlet of the third cylinder is connected to the inlet of the fourth cylinder and the gas outlet of the fourth cylinder is connected to the common outlet through spring biased one-way valves.

Abstract: A pump assembly including a primary power source and several axial piston pumps is disclosed. A connection flange is provided on the primary power source on which a first axial piston pump is connected. At least one more axial piston pump is coaxially connected on the connection flange. In order to support the multipump assembly stress-free and pinch-free without special adjustments, it is proposed to fasten at least approximately vertical guide or support plates on at least one and preferably both sides of the first axial piston pump at the connection flange of the primary power source and to connect the plates through an intermediate flange housing with the additional axial piston pump that is connected coaxially with the first axial piston pump.

Abstract: An axial piston machine whose pistons are formed as stepped pistons and which bound a first cylinder space and a second cylinder space, wherein the pistons are driven on the driving side via an axially displaceable driving surface on which they slide in a sliding bearing with a pressure pocket which is connected to the first cylinder space by a passage, is arranged so that the loading of the sliding bearings is reduced depending on the operating condition of the axial piston machine. This is achieved by connecting the second cylinder space to a second pressure pocket on one of the two sliding surfaces by a second passage separate from the first passage.

Abstract: An integrated motor pump unit for use as a hydraulic fluid pressure source at a remote location incorporates a pump rotor affixed in the center of a motor rotor. The motor/pump rotor assembly spins on a fixed shaft in a combination providing both radial journal and axial thrust bearings. The stationary shaft assembly incorporates a piston drive mechanism which is angled, relative to the shaft axis, so that reciprocal movement of the pistons is developed as they rotate about the axis. The fixed rotor shaft is axially adjustable to control the end clearance between the pistons and cam surfaces, and contains fluid flow galleries to the journal and thrust bearings. A magnetically permeable sleeve is mounted between the motor stator and rotor to seal the hydraulic fluid within the rotor space, thereby maintaining the stator windings and associated electronic circuitry in a dry environment.