Abstract: In a pump housing of a pump apparatus, a pump shaft is rotatably supported by two bearings and is connected to a pump unit. A rotary drive member is fixed to one end of the pump shaft projecting from the tip end portion of the housing. The rotary drive member includes a boss portion fixed to the one end of the pump shaft projecting from the housing, and a rim portion integral with the boss portion. The rim portion is offset from the boss portion to cover at least a portion of the tip end portion of the housing. A groove portion for receiving a drive belt is formed on the outer circumference of the rim portion. The widthwise center plane of the groove portion is located between the respective centers of the two bearings. In place of the groove portion, a tooth portion engageable with a drive gear may be formed on the outer circumference of the rim portion. Preferably, the pump unit is of a balanced vane type.

Abstract: A one-stage transmissible turbocharger includes a turbine wheel contained in a front current-guider and a rear current-guider, increasing air pressure to elevate horsepower and speeding up burning of gas coming out of a carburetor to save fuel consumption. The turbine wheel has a plurality of leaves respectively helically formed to have 32 angles to make a catch inlet section to elevate air volume to be caught in, and a final axial pressure section for producing centrifugal current so as to give the turbine wheel functions of both axial current and centrifugal current. In addition, the turbocharger has buffer springs for protecting a belt wheel and its bolts from damaged or broken.

Abstract: A barrel fan for the heavy duty circulation of air at the floor level consisting of a cylindrical tubular housing having a guarded rotating propeller blade therein. The blade is driven by a belt connected to an electric motor located on the lower exterior portion of the housing preferably shielded by a skirt in ventilating communication with the housing interior for motor cooling purposes. The motor is pivotally mounted and a spring interposed between the motor and housing maintains the tension within the belt.

Abstract: A liquid propellant supply system (10) according to the invention is electrical in nature and avoids the need for a gas generator and a turbine assembly. In particular, the system (10) includes an electrical power source (12), a controller (14) and a motor (18) for driving the pump (20). The electrical power source (12) provides electrical power sufficient for high power, limited duration applications such as for launch vehicle applications. For launch vehicle applications, the power source (12) is preferably capable of providing very high power for at least 60 seconds. A number of different types of electrical power sources may be employed in this regard. For example, the power source (12) may include high energy density batteries, supercapacitors, or counter rotating flywheels. Multiple counter rotating motors may be employed in order to minimize precessional forces.

Abstract: A portable power unit having an internal combustion engine, a tank for holding a supply of pressurized fluid, an electrical generator powered by the internal combustion engine, and a pump selectively powered by the internal combustion engine. An electro-magnetic clutch is energized by a pressure switch on the tank when the pressure in the tank falls below a predetermined value, and a cooling fan for the pump may also be energized by the pressure switch together with the clutch. A non-slip positive drive belt couples power from the engine to the generator. The generator is overdriven at a shaft rotation speed above that of the engine's shaft, and the pump is underdriven at a shaft rotation speed below that of the engine's shaft.

Abstract: A barrel fan for the heavy duty circulation of air at the floor level consisting of a cylindrical tubular housing having a guarded rotating propeller blade therein. The blade is driven by a belt connected to an electric motor located on the lower exterior portion of the housing preferably shielded by a skirt in ventilating communication with the housing interior for motor cooling purposes. The motor is pivotally mounted and a spring interposed between the motor and housing maintains the tension within the belt.

Abstract: An air compressor includes a fuel tank at least partially supported by the air compressor guard, allowing for a larger fuel tank and eliminating the need for a separate fuel tank support. The air compressor includes a gasoline engine connected to an air pump via a belt; the guard covers the belt. A frame may also partially support the fuel tank. The air compressor may also include a manifold assembly, where the manifolds are connected via a unique mechanism. Two manifolds, each having a plate extending therefrom, surround a regulator, and the manifold plates are connected using a set of bolts. The regulator is held to the manifolds by being clamped between the plates.

Abstract: A portable apparatus for ventilation support to persons with respiratory distress is provided with a compressed air pump. The pump may be connected to the mouth or the nose via a tube for generation of pressure pulses with an individually adaptable air volume. The pump comprises a rigid container having two symmetrical halves and with a flexible membrane which is located as a laterally reciprocating diaphragm between the two container halves. These are provided with check valves permitting ambient air to be fed into the pump and from the pump into the tube while the membrane wall is moved, for generation of a pressure pulse. The pump is provided with a flexible pull device for reciprocating operation of the membrane in the container. The pull device extends via pulley wheels to a driving device located substantially in the same plane as the container and beside it.

Abstract: A hybrid compressor achieving simplification in the structure and capable of driving the compression unit with ease is provided. An electromagnetic clutch unit (40) is provided at a rotating shaft (11) projecting out on one side of a compression unit (10) and an electric motor unit (70) is provided at the rotating shaft (11) projecting out on the other side of the compression unit (10), so that an electromagnetic clutch unit (40) in the prior art can be utilized directly. At the same time, since the electric motor unit (70) is provided at the rotating shaft (11) projecting out the other side of the compression unit (10), the electromagnetic clutch unit and the electric motor unit are set at the same rotating shaft (11) and the compression unit (10) and the electric motor unit (70) are positioned next to each other to reduce the torsional torque generated at the rotating shaft (11).

Abstract: To provide a water pump capable of preventing coolant leaked from a shaft sealing member from invading a bearing by a simple construction, a water pump has an outer ring of a bearing attached to an inner peripheral face of a pulley, an inner ring of the bearing attached to an outer peripheral face of a cylindrical portion of a housing and a shaft sealing member attached to an inner peripheral face of the cylindrical portion.

Abstract: The inventive device consists of a disk which can be rotated around a central axis, a wobble pin which is mounted in the disk so that can rotate around an axis which is arranged at an angle in relation to the plane, of said disk, a swivel pin which is secured to the wobble pin at an angle in relation to the axis thereof, and a fastening device which prevents the swivel pin from rotating around the axis of the disk. This mechanism forms a gear enabling a rotational unidirectional movement to be translated into a back-and-forth movement in applications where limited height is available. The preferred area of application is in implantable blood pumps.

Abstract: A fluid coupling is provided between a pump shaft of a water pump and a water pump pulley and includes a liquid chamber formed inside housings and filled with a fluid, and a rotor fixed to the pump shaft and housed in the liquid chamber. When the housings connected to a crank pulley via an endless belt rotate, the rotor is dragged by the viscosity of the fluid and the pump shaft rotates. Since the fluid coupling has the property of decreasing the rate of increase in the output rotational speed of the fluid coupling as the input rotational speed increases, the required rotational speed of the water pump can be guaranteed when the rotational speed of the engine is low, and the water pump can be prevented from rotating excessively when the rotational speed of the engine is high.

Abstract: A fan has an associated centrifugal mechanism and a shutter, comprising a plurality of pivoted vanes and a central vane pivotally interconnected with a pair of heavy tie rods. The centrifugal mechanism is driven by the fan propeller and comprises a hermetic housing wherein are located, symmetrical spaced apart in rapport to the fan axis, at least a pair of radial sliding masses operatively connected with flexible cables to an axial sliding reciprocating actuator which is disposed at proximity of the shutter central vane. When the fan starts to operate in either direction by an electric motor, the radial masses slide radially by centrifugal action and pull the axial reciprocating actuator away from the central vane, allowing the shutter heavy tie rods, to open the shutter. When the fan stops, an internal spring housed within the axial sliding reciprocating actuator pushes it against the central vane causing the closing of the shutter.

Abstract: A coolant pump, in particular for use in internal combustion engines, includes a pump shaft carrying an impeller with substantially axial intake and radial discharge, and a casing provided with at least one roller bearing supporting the pump shaft, and a pulley for driving the pump. A particularly compact design is obtained by firmly connecting the inner race of the roller bearing to the casing, and by attaching the outer race of the roller bearing to the pulley.

Abstract: High volume, belt-driven ventilation fans in which the bladed propeller assembly and the drive motor are operationally mounted upon a unitary structure. In one form of the invention a box-fan comprises a generally cubicle, or parallelepiped housing. In an alternative barrel fan the tubular housing is cylindrical. Both fans comprise a pair of rigid, vertically upright, parallel rails within their interior. A rigid, X-profiled mounting unit is fastened between the rails to mount both the propeller and the motor. The unitary mount comprises a rigid, central mandrel that coaxially receives the propeller assembly axle. Pairs of diverging arms extending away from each side of the mandrel are fastened to the rails within the fan interior. One of the arms pivotally supports a deflectable wing upon which the motor is mounted. The propeller assembly comprises a pulley-driven blade centered within the housing and an axle captivated within the mandrel.

Abstract: A refrigerant compressor with a drive power transmission unit accommodating therein a cooling unit capable of promoting heat dissipation from the drive power transmission unit including a rotor element operatively linked to a vehicle engine, a rotary hub-like plate fixed to a drive shaft of the compressor, the rotor element and the rotary hub-like plate being separate members and operatively connected through a transmission controlling member formed by a damper member and a torque limiter. The damper member and the torque limiter are deformable to perform their transmission controlling function. Fins may be formed in a radial arrangement around the axis "L" of the drive shaft on the rotary hub-like plate.

Abstract: Coolant pump service in a crowded engine compartment is provided by forming the side wall of the pump drive pulley with a centralized and radially lobed opening which can accommodate the radial arms of the drive hub that are normally connected by screws to the pulley side wall. The drive hub is fixed to the outboard end of the coolant pump drive shaft that extends through the housing of the pump that is removably secured by screws to the block of an internal combustion engine. The pump impeller is mounted on the inboard end of the drive shaft for fluid pumping operation in a coolant-receiving cavity in the coolant circuit of the engine. In the event of interference, which prevents or hampers the removal of the pulley axially from the drive shaft, the hub screws are removed and the pulley is turned into alignment with the lobes of the opening so that the pump housing screws are accessible.

Abstract: A refrigerant compressor having a drive shaft rotatable to cause compression of a refrigerant gas, and a drive power transmission unit for transmitting a drive power from an external drive power source to the drive shaft, the drive power transmission unit having a pulley freely rotatably mounted around the drive shaft, a power transmitting element fixed to the drive shaft, and a shock absorbent rubber element arranged between the pulley and the power transmitting element for providing a positive engagement between the rubber element and the pulley, and between the rubber element and the power transmitting element.

Abstract: A volumetric pump for administering intravenous fluids to a patient includes a first housing having an elongate cavity therein with an open and a closed end. A resilient sheet of material having a centrally-located aperture covers the open end, and a pump shaft is slidably disposed through the aperture to form a sphincter seal therebetween. An inlet conduit leading from a fluid source (an IV bag) passes through the housing into the cavity near the open end thereof, and an outlet conduit leading to a fluid sink (the patient) passes through the housing from the cavity near the closed end thereof. A drive shaft is attached to the pump shaft to drive it back and forth in reciprocating motion inwardly and outwardly of the cavity to produce, respectively, a positive pressure forcing fluid out of the outlet conduit to the fluid sink, and a negative pressure forcing fluid from the fluid source through the inlet conduit.

Abstract: A compressor including a prime mover having an output element which supplies a motive force produced by the prime mover; a compression module having an input element; a tensioned belt connecting the prime mover output element and the compression module input element to transmit the motive force from the prime mover to the compression module, and a self-adjusting belt tensioning member for applying a substantially constant tensioning force to the belt to maintain substantially constant the predetermined required belt tension. The compressor also includes an anchor bracket connected to the compression module, and a locator plate connected to the anchor bracket, the locator plate being movable relative to the anchor bracket, the anchor bracket having a stop member for limiting movement of the locator plate.

Abstract: An energy efficient high pressure pump system includes a drive motor driving an eccentric transmission, which drives a reciprocation pump having a number of cylinders. The eccentric transmission transmits a torque demand from the reciprocating pump, which varies with time, to the drive motor such that the torque demand on the drive motor is substantially constant. The pump system includes an eccentric sprocket mounted on the output shaft of a drive motor and driving an eccentric sprocket on an idler which includes a concentric sprocket driving a concentric sprocket on the reciprocating pump with the eccentricity of the eccentric sprockets being proportional to the maximum and minimum torque demand characteristics of the reciprocating pump.

Abstract: A mechanical actuated diaphragm pump for pumping fluids. The pump includes a pump housing having a chamber, a flexible diaphragm forming at least a portion of one wall of the chamber, a reciprocally movable member for causing reciprocal movement of a portion of the diaphragm, a rotating shaft connected to the reciprocally movable member such that rotation of the shaft causes reciprocation of the reciprocally movable member and a motor having an output shaft for driving the rotating shaft. The motor can be alternatively and selectively mounted with respect to the pump housing in a first alternative position such that the output shaft of the motor is fixed to the rotating shaft to drive the rotating shaft, and in a second alternative position such that the output shaft is connected to the rotating shaft through a pair of pulleys to drive the rotating shaft.

Abstract: A structure for mounting a water pump to a water-cooled internal combustion engine in an easy manner. A water-cooled internal combustion engine in which the water pump is removably mounted to a side wall of the water-cooled internal combustion engine, is driven by power transmitted from a crank shaft to the water pump through a transmission mechanism, wherein a water pump driving member is arranged closer to a center of the internal combustion engine than an output driving member of the crank shaft. A water pump following member is driven by accepting the power from the water pump driving member and is rotatably mounted to a side wall of the internal combustion engine. A drive shaft of the water pump is removably spline fitted to splined aperture of the water pump following member.

Abstract: An electric motor is connected via cog belt to a dual purpose pulley on the water pump of an automobile, to increase power available from the engine so that during racing maximum horsepower can be achieved. Enhanced cooling of the engine is also obtained.

Abstract: A compressor having a compression mechanism within a housing for compressing a refrigerant gas according to the rotation of a rotary shaft operatively connected to an external power source. A pulley is mounted on the rotary shaft and located on one side of the housing for transmitting power from the external power source to the shaft. A fan sends air to the outer surface of the housing by rotating with the pulley. Heat transferring fins are provided on the housing adjacent to the fan.

Abstract: A pumping unit comprising a supporting post and a walking beam, having a head end and a tail end, pivotally connected to the post to allow for rocking of the beam about a horizontal pivot axis. The head end is connected to a vertical pump rod. The walking beam is also connected to one end of an arm, the opposite end of which is connected to a drive assembly for rocking of the beam about the horizontal pivot axis to reciprocate and produce a predetermined number of up and down strokes per minute of the pump rod. The drive assembly includes a rotating power device connected by sheaves and belts a transmission assembly whereby rotation of the power device is translated to a longitudinal force on the arm for rocking of the beam. The drive assembly is further characterized by a speed reducer interpositionable between the power device and the power transmission assembly to substantially reduce the number of up and down strokes per minute of the pump rod.

Abstract: An external-rotor-driven lubricating pump comprising a lubricant guidance part including a suction port, an outer wall, a carrier section, a discharge port, a lubricant feed space disposed between the carrier section and the outer wall and connected with the suction port, with a lubricant delivery space disposed between the carrier section and the outer wall and connected with the discharge port, and a pump part including a drive gear, an internally-toothed external rotor, with an externally-toothed internal rotor having one tooth less than the number of teeth on the external rotor, the external rotor and the internal rotor upon meshing pumping the lubricant from the lubricant feed space into the lubricant delivery space, with a shaft supporting the drive gear in the carrier section, the drive gear being fixed to the external rotor, the drive gear forming together with the external rotor the outer closure of the lubricating pump at its pump part end, with the internal rotor being mounted loosely on a collar o

Abstract: Disclosed is a new and unique cylindrical bracket for use with a motor or engine having an elongated rotatable shaft which attaches over the shaft. The bracket has a semi-cylindrical opening along one side. A hydraulic pump or other apparatus is attached to and supported by the bracket in order to be operated by the shaft. One or more pulleys may be placed on the shaft, the open side of the bracket allowing belt access to them. In this way, the rotatable shaft may directly operate the apparatus at the end of the bracket, while also providing belt driven operation to one or more other devices lateral to the shaft and bracket. Simultaneous operation of two or more devices using the same engine is therefore made possible by the present invention. This is particularly useful in spraying devices which require simultaneous operation of hydraulic pumps and air compressors.

Abstract: An electric motor is connected via cog belt to a dual purpose pulley on the water pump of an automobile, to increase power available from the engine so that during racing maximum horsepower can be achieved. Enhanced cooling of the engine is also obtained.

Abstract: The present invention relates to a water pump for an internal combustion engine, capable of effectively preventing the entry of dust into a bearing for an impeller shaft, and of providing a simply constructed and small-sized dustproof function. To this end, a fan (32) is mounted on a portion of an impeller shaft (18) which is positioned within a cup-shaped hood (30), and the inflow of dust into the bearings (22F, 22R) is prevented by the fan (32). The hood (30) is provided with blowout holes (44) in the portions thereof which are opposed to the outer circumference of the fan (32).

Abstract: A linear actuator and pump unit for precision displacement of fluids in which a positive displacement, piston pump is coupled to an actuator mechanism having a carriage on a guide that is displaced by a rotary drive connected to a take-up drum on an anchor structure that has a pulley line anchored to the anchor structure looped around a first idler pulley on the carriage, looped around an idler pulley on the anchor structure, looped around a second anchor structure on the carriage, and connected to the take-up drum, the positioning of the carriage being detected by a sensor and the rotary drive that controls the precision operation of the piston pump.

Abstract: An energy efficient housing assembly employing a single inlet backwardly inclined blower fan for use in commercial HVAC units. The housing assembly is provided with a slanted wall to which a fan supply motor is slidably mounted. The slanted wall, in conjunction with an opposite non-parallel side wall, two other walls and a top plate form an enclosed area in which the fan is rotatably mounted. Air enters the fan in a straight path through a single front inlet opening provided in the assembly and exits the assembly via a large bottom discharge opening. Air flowing out the bottom discharge opening is evenly distributed over heating elements provided in the unit adjacent to the assembly. The assembly is slidably mounted in the unit for ease in removing it from the unit.

Abstract: A liquid pumping, handling and spraying system for liquid compositions and especially those liquid coating compositions having a suspension of metal particulate therein which tends to settle out of suspension of metal particulate therein which tends to settle out of suspension quite rapidly and which includes metal particulate having an affinity for adherence to metal surfaces. A fluid supply system is provided which accomplishes continuous agitation of the liquid composition to sprayed to maintain the metal particulate thereof in properly entrained suspension and even distribution with the liquid carrier fluid and which permits the use of low cost, lightweight containers for the liquid supply. A packingless pump is provided for pressurized delivery of the liquid composition from the supply container to a packingless spray gun.

Abstract: A universal automotive alternator which comprises an alternator body, a front plate and an assemblage for attaching the front plate to the alternator body. A back plate is also provided. A structure is for securing the back plate to the alternator body. A facility is for mounting the front plate to a bracket on an engine. In some instances, a component is utilized for mounting the back plate to a bracket on the engine.

Abstract: This invention relates to a system for pumping an effluent that is produced by a geological formation, in which a rotary pump (3) is installed and driven in rotation by a continuous tube (12) that rises up to the surface. The tube makes it possible to inject a fluid, for example, a liquefier or a lubricant. This invention also relates to a pumping method in which rotor (24) of the pump is installed with a continuous tube (12), of the "coil tubing" type.

Abstract: An auxiliary PTO assembly is designed for attaching a front mounted auxiliary rotary driven hydraulic pump to an OEM truck engine. The PTO assembly includes an auxiliary belt drive pulley which is formed by a ring which is shrink-fitted around a harmonic balancer which forms a portion of an OEM fan drive pulley. A bracket attached to the OEM engine is adapted to hold the hydraulic pump and a plurality of idler and tensioner pulleys. Installation of the inventive assembly is relatively simple and straight forward and entails virtually no modification of the OEM components. The entire PTO assembly including the auxiliary drive belt and the hydraulic pump are accommodated behind the original position of the OEM cooling fan such that the fan shaft does not need to be extended.

Abstract: A compressor includes a rotary drive shaft having a first end and a second end, both the ends being rotatably supported by opposing walls of a crank chamber defined in a casing and a swash plate tiltably mounted on the drive shaft and operably coupled with a piston in a cylinder bore. A rotation of the drive shaft results in a reciprocating movement of the piston for compressing refrigerant gas in a cylinder bore. A rotary member is secured to the first end which extends outside the casing. the rotary member supplies a power to the drive shaft from a power supply. A support member, disposed between the rotary member and the first end, protrudes outward from the casing. A first bearing, disposed between the support member and the rotary member, receives a thrust load and a radial load acting on the rotary member when the rotary member rotates. A second bearing, disposed between the casing and the second end, receives the radial load acting on the rotary member when the rotary member rotates.

Abstract: A device is provided for feeding pressurized liquid to a hydraulic circuit of a hydraulic actuation element. The device includes a motor, a flywheel and a positive displacement pump. The positive displacement pump and the flywheel are mounted on a common shaft. The device also includes a flywheel containment structure suitable for retaining the flywheel in the event of accidental breakage, and a motion transmission element. The containment structure rigidly supports a pair of seats for shaft bearings, and a seat for the pump.

Abstract: A mobile, modular apparatus for power spraying comprises a first adapter attached to a motor and a second adapter attached to a pump. Both adapters are received and positioned on a wheeled frame with the driving sheave of the motor in operational alignment with the driven sheave of the pump. A recess in the pump adaptor receives a locking bar on the frame to partially lock the pump adaptor in place; the positioning of the motor adaptor on the frame completes the locking of the pump adaptor in place. Before the motor adaptor is locked into position, one or more drive belts are installed on the driving and driven sheaves by rotating the motor about the pump adaptor far enough to where the belts will fit loosely onto the sheaves. The belts are made operationally tight when the motor is rotated back into position on the frame. The motor adaptor is locked into place with a swing lock. The sheaves are covered by a housing that is latched into place.

Abstract: Disclosed is a pump that employs a magnetic coupling to connect the motor to the impeller. A simplified structure within the pump casing is employed to enable the easy removal of the pump's impeller and bushings and/or bearings. In one embodiment of the invention, the exterior surface of the impeller, including its attached magnets, is encased in a plastic bushing material. Surrounding the impeller is a tubular bushing that may at times come into contact with the bushing material of the impeller.

Abstract: An apparatus is provided for adjustably mounting a prime mover in belt driving relation to a reciprocating compressor to facilitate proper tensioning, locating and aligning of a reciprocating compressor drive belt. The apparatus includes a base plate and a support plate which mounts the prime mover. A pivotal mounting means, which defines an axis of rotation, is connected to the support plate. At least one pair of locators are fixedly attached to the base plate. The at least one pair of locators removably receive the pivotal mounting means to adjustably locate the support plate with respect to the base plate. A pivotal adjustment assembly adjustably positions the support plate in a predetermined position along an arcuately shaped path of travel about the axis of rotation.

Abstract: A free piston engine having a fluid pressure unit which includes a cylinder and a piston arranged within the cylinder and reciprocating therein between the bottom dead center and the top dead center. The piston includes a plunger-shaped piston extension cooperating with the fluid pressure unit. This fluid pressure unit is equipped with an auxiliary member for moving the piston in a direction to its bottom dead center. This auxiliary member includes a connecting channel adapted to communicate a liquid pressure source with a room in which the plunger-shaped piston extension extends and which room is closed on one side by an axial face of the piston extension which is directed such that, by pressure loading the axial face, the piston is moved towards the bottom dead center. The axial face is formed on a ring slidably arranged on the plunger-shaped extension. The plunger-shaped extension includes a stop adapted for engagement by the ring when it is moved for displacing the piston to its bottom dead center.

Abstract: A drive shaft for an automotive vehicle water pump has an outer race with plural outer raceways formed in an inner peripheral wall thereof, a shaft member disposed for rotation relative to the outer race and defining a like plural number of inner raceways formed in an outer peripheral wall of the shaft member in radial registration with the corresponding outer raceways, and a multiplicity of rolling elements arranged between the inner raceways and the corresponding outer raceways, respectively. The shaft member comprises a large-diameter bearing portion with the plural inner raceways formed in an outer peripheral wall thereof, a small-diameter impeller shaft portion extending from one end of the large-diameter bearing portion, a small-diameter pulley shaft portion, and a continuously-connecting portion extending between an opposite end of the large-diameter bearing portion and a proximal end of the small-diameter pulley shaft portion.

Abstract: An apparatus is provided for packaging an air compressor. The air compressor includes a rotary-screw airend which is belt driven by a prime mover, such as an electric motor. A drive shaft of the airend is rotatable about a first axis. A compressed air receiving tank receives compressed air. First and second mounting brackets are made integral with the airend, and pivotally mount the airend on a frame. The airend is pivotally moveable about a second axis which is laterally offset to the first axis. The second mounting bracket defines an interior cavity which fluidly communicates with the discharge portion of the airend. A discharge pipe mounting means mounts a discharge pipe in fluid communication with the interior cavity and in collinear relation with the second axis. A rigid pipe is mountingly received by the discharge pipe mounting means and fluidly connects the airend with the compressed air receiving tank.

Abstract: An air propelling apparatus/fan is provided having an air intake grill and an exhaust grill mounted on the ends of a cylindrical shroud. A shaft is mounted inbetween and on the intake and exhaust grills and a fan blade assembly is provided on the shaft. In one embodiment, the fan blade assembly is adapted for rotational movement about the shaft and a driven pulley is affixed to the fan assembly and is caused to turn via a belt and an electric motor mounted on the shroud. In another embodiment, the fan assembly is affixed to the shaft and the shaft is adapted for rotational movement. The driven pulley is affixed to the shaft and caused to rotate by an electric motor mounted on the shroud.

Abstract: The invention relates to a gear pump for oil for an internal-combustion engine, in particular for motor vehicles, comprising a pump housing mounted on the motor and an outer rotor which is arranged in the pump housing, an inner rotor additionally being arranged within the outer rotor or within the pump housing and at least one suction and/or at least one pressure passage being provided in the pump housing, a drive further being present; the pump according to the invention is integrated in a drive wheel or guide pulley of the internal-combustion engine and the outer rotor or the outer rotors are driven by the drive wheel or the guide pulley.

Abstract: An air compressor includes an enclosed housing with a 12-volt electrical motor mounted to a bottom frame within said housing and a compressor pump located vertically above the motor within the housing and operably connected to the motor. A ventilation fan is mounted on the motor adjacent a ventilation panel in one side panel of the housing, to draw air into the housing. The top cover is spaced slightly above the upper edges of opposing side panels of the housing, to form a ventilation space at the upper end of the housing through which air may be circulated around the motor and pump and upwardly out of the housing. The compressor pump is mounted on a base plate which is pivotally mounted along one edge and has an adjustable length leg supporting the opposite edge. The adjustable length leg permits adjustment of the distance between the pump and motor so as to adjust the tension on a drive belt extending between pulleys on the pump and motor.

Abstract: An oil-free scroll compressor comprising a plurality of oil-free scroll compressing mechanism blocks, each for compressing a gas, and a motor or motors for driving the plurality of oil-free scroll compressing mechanism blocks. In operation, an air is suctioned into the compressor through a filter and a throttle valve and then divided and sucked into first and second oil-free scroll compressing mechanism blocks, which act to increase the pressure of the air to a predetermined pressure. The compressed air is cooled by an after-cooler and supplied to the compressed air user side. The scroll compressing mechanism blocks are driven by a dual-shaft motor through belts. Under no-load condition, the throttle valve is closed and a release valve is opened, whereby the compressed air held between the blocks and check valves is released.

Abstract: A liquid pumping system adaptable for connection to either an electrical drive motor or an internal combustion engine, wherein a generator and clutch is coupled to the driving source, and a pressure sensing switch is connected to the generator rotor to selectively provide voltage to a rectifier circuit and field winding for the clutch. The energization of the field winding causes the clutch to actuate and thereby causes a mechanical coupling to a reciprocable pump for developing liquid pressure.

Abstract: An air compressor of compact design which has the capability of providing a relatively high pressure, relatively low volume output, and which is capable of operating over an extended range of speeds. A drive pulley is connected to a crankshaft structure and the crankshaft structure is connected to a reciprocating piston via a connecting rod. The piston reciprocates in a cylinder bore that has side inlets for admitting air and the piston compresses the air which is forced through a reed valve mechanism into an output chamber that communicates with an air pressure regulator for providing a constant desired output pressure.