Abstract: Portable, low noise air pump apparatus employing an inexpensive lightweight pump and motor unit, which pumps a pulsed noisy output into a plenum chamber inside a rubber impervious sub-housing which absorbs noise and vibration; and a sound deadening plastics tube which carries the compressed air from the plenum, via a sound absorbing chamber (surrounded by lightweight sound absorbing material which supports the sub-housing) and across an accommodation space to an outlet fitting from which a smooth low-noise compressed air output can be supplied.

Abstract: An arrangement for supplying fuel to an internal combustion engine of a motor vehicle has a supply tank, an aggregate which is located in the supply tank and a fuel delivery unit for supplying fuel from the supply tank to the internal combustion engine. The aggregate has a plurality of components extending along a delivery path of the fuel, is located in the supply tank, and is provided with a supporting element which carries a holding member for the components of the aggregate.

Abstract: An electrically driven air pump having a housing, a pump mechanism in the housing and an electric motor in the housing connected in driving relation to the pump mechanism. Two spaced elastic supports support the electric motor from the housing at opposite ends of the motor. An air passage in the housing provides a flow of air past the electric motor to the pump mechanism. The air passage includes a suction nozzle supported by one of the elastic supports for supplying air to an inlet collar of a pump impeller of the pump mechanism. The suction nozzle projects into the collar for supply of the air from the electric motor to the pump mechanism.

Abstract: A pump including a submersible motor sealed within a motor chamber, an impeller rotatably mounted in an impeller chamber, and motor and impeller shafts coupled to one another to interconnect the motor and impeller. The impeller pumps fluid from the impeller chamber into the motor chamber where the fluid flows around the motor to cool the motor and muffle the motor noise before being discharged from the pump. The impeller shaft is rotatably mounted in a bearing fixed to the impeller housing and having grooves facing the shaft and providing fluid communication between the impeller and motor chambers. Fluid flows into the grooves from the impeller or motor chamber depending on the pressure gradient across the bearing, which varies according to downstream pump conditions (e.g., pressure). As the impeller shaft continues to rotate, fluid from the grooves forms a thin lubricating film in the clearance space provided between the impeller shaft and bearing.

Abstract: A new structure for an efficient electric pump is described. The electric pump of this invention mainly comprises a cover plate, a top cover and a housing to make up the outside appearance. Its inside consists of a dual piston device, an eccentric transmission device for the pistons to stroke up and down, an electric motor, a switch, an adjustable pressure switch, a rotary dial for adjusting said pressure switch and the associated circuitry. The cover plate has two circular ball-shaped chambers for the pistons to create the sucking and the discharging. In between the two ball-shaped chamber are discharge and suction channels which are independent from each other but are joined together. Two ends of the channel are provided with clack valves for controlling the air flow to be drawing in on one side and discharge on the other side. The pressure switch is disposed beneath the discharge channel so that the pressure switch trips when the discharge pressure extends a preset limit.

Abstract: An electric-motor/hydraulic-pump assembly in which an electric motor has a motor housing and a motor drive shaft, and a hydraulic pump is mounted directly to one end of the motor housing and internally coupled to the shaft to form a unitary assembly in which vibration generated by operation of the pump is transmitted to the motor housing. Support feet are affixed to the motor housing for mounting the motor/pump assembly to underlying support structure, and sound deadening ferrules are interposed between the motor housing and the support feet to inhibit transmission of structureborne noise from the motor housing to the support structure. The motor and pump are surrounded by a sound enclosure to inhibit radiation of airborne noise into the surround atmosphere. Fluid is drawn through an inlet in the sound enclosure and through the motor housing to cool the motor, and then pumped to a fluid outlet in the enclosure.

Abstract: A combination frame arranged between a centrifugal pump and a driver, such as a motor, the combination frame having in a central region thereof a compartment for holding shaft bearings and a quantity of oil, and a pump adapter frame arranged between said compartment and said pump, and a driver adapter frame arranged between said compartment and said driver, the pump and driver adapter frames and the compartment cast or forced as an integral structurally seamless frame between pump and driver. The driver adapter frame radially surrounds and covers impeller axial adjustment studs and reference nuts at the bearing housing, for protection. The combination frame of the present invention provides a stronger structural integrity than the multi-component frames of the prior art which allows for more precise alignment of the coupling between motor and pump which reduces vibration.

Abstract: A hermetic compressor including a plurality of shock mount units attached between the housing and a compressor unit disposed within the housing. Each shock mount unit includes a coil spring to damp vertical movement of the compressor unit with a U-shaped spring to damp horizontal movement of the compressor unit. The U-shaped spring is in sliding contact with a shock mount bracket attached between the coil spring and the housing, so that lateral oscillations of the compressor unit and sound transmission through the housing are reduced.

Abstract: The present invention relates to a noise dampening assembly of a hydraulic machine and a drive motor, and provides for a structure comprising a block, in which the hydraulic machine is mounted by means of noise dampening elements.

Abstract: A freon operated compressor for domestic refrigerators has an electric motor that drives through a camshaft a piston sliding inside a cylinder block, while a system of valves provides for suction and delivery of the working fluid, a hollow body with a suction port in coaxial relation with a pipe, opposite which a triple pole terminal is arranged through which electrical power is supplied, and a pump provided with an outward cylindrical member and an ogival member with inner longitudinal blades and outward radial blades.

Abstract: By providing position control means cooperatively associated with a support pad with said control means being constructed for arcuately moving the support pad in response to activation by the user, with the position control means and pad peripherally surrounded by a cover, a unique, portable, self-contained, unitary, movably adjustable support assembly is attained whereby individuals are able to position the support pad in any desired location or on any surface while also being able to automatically raise and/or lower the support pad to any position for comfort and support. In the preferred embodiment, the movably adjustable support assembly is constructed with expandable shroud means integrally connected with the cover in association with the position control means for expanding in response to the arcuate movement of the position control means while being automatically retracted into a folded configuration when the control means are returned to its original position.

Abstract: In photocopying and/or printing machines, the blower or fan used for internal ventilation is suspended from the structure of the machine by springs slung between the blower casing and the machine structure to eliminate the transmission of vibrations to delicate members in the machine itself.

Abstract: The present invention relates to a hydraulic power steering system for automotive vehicles, having a steering gear with housing, steering shaft and steering rack, a hydraulic cylinder coupled to said steering rack, a pump and a steering valve, with all individual parts of the steering system forming a pre-assembly unit. This does not only permit a "just-in-time" delivery of the completely assembled, fluid-filled and tested system to the car maker, but also eases disassembly when the vehicle is junked. Thus, the power steering system according to this invention is inexpensive and can be recycled in an environment-friendly manner. The invention also includes a noise and vibration damping mounting arrangement. Still further, the invention includes an electric pump assembly.

Abstract: A tiered mounting arrangement supports a compressor on a mounting plate which is in turn supported to the base pan of the system. Elastomeric isolators support the mounting plate above the base pan and similar elastomeric isolators support the compressor above the mounting plate. The isolator studs function to isolate compressor vibration from being transmitted to the mounting plate, and to isolate vibration in the mounting plate from being transmitted to the base pan. This arrangement achieves significant reduction in noise levels.

Abstract: A radial-blade double-inlet fan (1) which includes a casing (2) with two inlet openings (8,10) facing each other, an external electrical rotor motor (14) located in casing (2), having a stator (16) and a rotor (18), and of a radial impeller (20) which is connected to rotor (18) and which axially extends on both sides beyond motor (14) into the direction of inlet openings (8,10). To absorb the oscillations, motor (14) is flexibly supported by the casing. Stator (16) is connected to stator flange (32), and rotor (18) encloses stator (16) only along one side approximately up to stator flange (32).

Abstract: A tandem compressor mounting system has a set of four elastomeric grommets for mounting each of the compressors to a pair of common rails. Each of the elastomeric grommets is secured to a mounting plate located on each of the two compressors and are disposed between the mounting plates and the common rails. Each of the two sets of elastomeric grommets are made from 65 durometer neoprene. A third set of four elastomeric grommets, two for each of the common rails, is disposed between the common rails and a generally horizontal mounting surface. Each of the third set of elastomeric grommets is made from 40 durometer neoprene.

Abstract: A portable, hand-held blower/vacuum unit has a housing structure defined by an upper engine shroud removably connected to the top wall of a lower impeller housing. Disposed within the shroud is a small internal combustion engine having a vertical crankshaft which extends downwardly through a depending well section formed on the top wall of the impeller housing, the lower shaft end being drivingly connected to a centrifugal fan impeller positioned within the impeller housing and operative to force a flow of ambient air therethrough. The engine is resiliently and floatingly mounted within the shroud by a resilient support system which prevents rigid contact between the engine and the shroud or the impeller housing to thereby substantially reduce engine vibration transmitted to the housing structure, and permit deflection of the engine relative to the housing structure to lessen the possibility of engine damage caused by impeller impact from ingested objects.

Abstract: A low noise, hermetic motor-driven compressor suitable for used in a refrigerator or an air-conditioner is disclosed in which a closed container has a spherical wall portion on which a combined motor-and-compressor assembly is supported via a suspension mechanism, and the suspension mechanism includes two snubber stays having spherical portions complementary in contour to the shape of the spherical wall portion of the closed container and welded to the spherical wall portion. The spherical wall portion increases the stiffness of the closed container, which stiffness is enhanced by the spherical portions of the snubber stays. The thus reinformed closed container is unlikely to vibrate in resonance with the vibration of the combined motor-and-compressor assembly. Thus, the hermetic motor-driven compressor is able to operate silently.

Abstract: A hydraulic power supply is disclosed. This power supply contains a reservoir, an electric motor, and a variable volume pressure compensated pump. The motor used in the device rotates at a speed which does not exceed 1,200 revolutions per minute and produces from about 3 to about 5 horsepower and a torque of from about 12 to about 30 foot pounds. The ratio of the torque to the horsepower (in foot-pounds per horsepower) does not exceed about 4.0. The hydraulic power supply includes an adaptor for connecting the electric motor and the pump and for suspending the electric motor and the pump away from at least one wall of the reservoir.

Abstract: A compressor for a domestic refrigerator has a horizontally oriented cylinder assembly at the top of a motor with a body forming a suction passage connected to the cylinder depending from the latter along side the motor and juxtaposed with a wall of a lower housing part holding the oil which is pumped through the shaft of the motor to the eccentric. The body has a suction port spaced from but aligned with a hole in the wall to which the refrigerant is delivered by a tube terminating at that wall.

Abstract: An elastomeric mount for a compressor is formed of upper and lower stud portions with a solid elastomeric section therebetween to thereby provide improved vibrational damping performance in both the vertical and transverse directions. The three elements are integrally joined by molding the studs into the elastomeric portion, and the binding between the elements is enhanced by way of an adhesive.

Abstract: To isolate a computer housing structure from vibration created by an internal cooling fan, the fan is provided with a pair of specially designed resilient vibration isolation members. In one embodiment, the vibration isolation members each comprise a spaced pair of pocketed end portions having generally triangular cross-sections and joined by a thin strip of resilient material. These end portions are fitted onto the corners of the fan's rectangular outer frame which is then pushed forwardly into a rectangular mounting frame, the pocketed isolation member end portions serving to space the inserted fan frame apart from the mounting frame. The rear side of the mounting frame is then secured to an inner side surface of the computer housing structure.

Abstract: A motor-pump unit includes a first mounting leg member at the interconnection of the motor and the pump and an outer multiple releasable outer mounting leg member at the outer end of the motor. The releasable leg member permits mounting with spaced supports under the motor or by removing of the outer leg cantilevered motor. The first leg member has a U-shaped base secured to the pump and extended beneath the motor frame adjacent the pump with circumferential spaced depending legs. An extended outer frame of the motor frame has an end notch in the bottom wall portion and the outer leg member has a mounting plate with an edge recess telescoped into the edge of the notch. An end cap has a projection extended into the opposed recess in the plate. The outer leg member has a single depending leg to define a three point mounting of the motor-pump unit. The outer leg member is removed for a cantilevered support and a closure plate is clamped into the notch to close the opening.

Abstract: The present invention provides a vehicle window washing system having a washer pump which includes a cylindrical housing, a pump section formed in the housing, a motor section formed in the housing, an outlet formed in the housing to extend outwardly therefrom, and a flow passage connecting the outlet with the pump section. The washer pump is fixedly held relative to a washing liquid tank under such a condition that at least the pump section is inserted into the washing liquid tank through an opening therein.

Abstract: A motor mount is provided for a dishwasher for preventing transmission of vibration generated by a motor through a pump to the dishwasher tub. The motor mount is secured at its base to the pump and includes a plurality of arms extending radially from the base for mounting the motor thereto. The arms are separate along their length from the pump, and are torsionally resilient, permitting the motor to vibrate torsionally with respect to the pump. The arms are radially and axially rigid, thereby preventing radial or axial motion of the motor.

Abstract: A mounting for an electric fuel pump on a rigid metal return fuel conduit in a fuel tank of an automobile includes a plastic support having a center body with a stepped bore therein for receiving the lower end of the return fuel conduit and a pair of integral flexible arms extending in opposite directions from the center body. The return fuel conduit has an annular shoulder which engages a shoulder on the center body to limit penetration of the return fuel conduit into the bore. The return fuel conduit also has a plurality of lugs thereon permanently deformed into notches in the center body to capture the center body between the lugs and the shoulder on the return fuel conduit. The flexible arms have wrapped positions around the fuel pump and an annular rubber isolator thereon clamping the fuel pump and the isolator to the center body.

Abstract: An automotive refrigerant compressor according to the present invention comprises a compressor housing that includes at least one bracket. The bracket has a hole through which a fastening member, such as a bolt for example, penetrates. A bushing, which includes a flange portion formed at one end, is inserted into the hole in the bracket with the flange portion disposed at an outer surface of the bracket. A washer-like vibroisolating member is fixed to the flange portion of the bushing by a cyanoacrylate adhesive. In accordance with this construction, the refrigerant compressor can be easily mounted within the engine compartment of a motor vehicle without having to be concerned with the conventional problem of slipping vibroisolating members.

Abstract: A multi-function combinational air compressor comprising an engine for compressing air, a motor to drive the engine, a filter cylinder to filter oil and miscellaneous matter out of the compressed air produced by the engine, a coiled double-layer cooling tube having a small inner tube and a large outer tube for the cold medium and the compressed air to separately circulate, an air and water separator to separate the compressed air from the water, a radiator to cool down the compressed air coming from the air and water separator and send it out in a compressed air tank, a sealed housing ing case to house all the other components having all its inside wall covered with a cotton layer to muffle the noise produced, and a base plate supported by four springs to mount on the engine and the motor for absorbing the vibration and noise caused by them.

Abstract: A pump mount is provided for a dishwasher having a tub with an opening in the sump defined by a radially inwardly directed annular flange. A pump housing includes a plurality of ramp members spaced around its periphery and a seal is located between the pump housing and the flange for retaining washing fluid in the tub when the pump housing is assembled to the tub. A locking member is engageable with the pump housing ramp members for assembling the pump housing to the tub. In the preferred embodiment a locking member is rotatable relative to the pump for effecting axial movement of the pump housing relative to the tube to compress the seal and form a fluid tight joint.

Abstract: A fuel pump having a first pumping mechanism for pumping a fuel in a main tank to a subtank and having a second pumping mechanism for pumping the fuel in the subtank to an outside of the main tank. The fuel pump includes a rotatable impeller having a plurality of outer peripheral vanes, and a wall member surrounding the vanes so as to define a fuel flow passage. The wall member has two partition walls for partitioning the fuel flow passage into a first pumping passage and a second pumping passage, a first suction hole for communicating an upstream end of the first pumping passage to the main tank, a first discharge hole for communicating a downstream end of the first pumping passage to the subtank, a second suction hole for communicating an upstream end of the second pumping passage to the subtank, and a second discharge hole for communicating a downstream end of the second pumping passage out of the main tank.

Abstract: A coupler for connecting the confronting ends of two fluid lines. The coupler includes a coupler housing having a generally tubular body extending along a longitudinal axis. The body includes an opening at a first end thereof for receiving a first tube in the body and an opening at a second end thereof for receiving a second tube in the body. Seals are provided for sealing engaging an end portion of the first tube within the body and for sealingly engaging an end portion of the second tube within the body. A clip extends radially inwardly from a slot in the body for engaging the first tube to retain the first tube within the body and to limit the longitudinal movement of the first tube into the body. The body includes a frangible neck portion intermediate the openings at the ends of the body for separating the first and second tubes by shearing the body at its neck portion.

Abstract: In a hermetic reciprocating compressor, the discharge line functions as a torsion spring in supporting the compressor and motor within the hermetic shell. To prevent excessive deflection of the discharge line while maintaining its torsion spring function, the discharge line is restrained radially and axially while permitting circumferential movement in a helical portion which defines the torsion spring.

Abstract: An aquarium air pump includes an electromagnetic motor-operated pump unit positioned in the housing of the pump and including two vibrating arms energized by the motor and each carrying a pump diaphragm forming with a closure member of the pump unit casing a pump chamber. Each vibrating arm is positioned on the casing to be pivoted to an operative position to close the respective closure member and a non-operative position in which the arm can be removed from the casing and interchanged. The pump housing includes a bottom part and a top part connectable to each other and sealed in the connected position by a peripheral seal. Cushioning cups support the pump unit in the pump housing to absorb vibrations.

Abstract: An automotive refrigerant compressor according to the present invention comprises a compressor housing that includes at least one bracket. The bracket has a hole through which a fastening member, such as a bolt for example, penetrates. A vibroisolating member is provided that includes a cylindrical portion and an annular flange portion radially extending from one end of the cylindrical portion. The cylindrical portion is firmly inserted into the hole in the bracket, with the flange portion disposed at an outer surface of the bracket. The flange portion includes a pair of protrusions on opposing sides of the flange portion. The protrusions are inwardly bent at the base thereof so as to fit along a side surface of the bracket when the cylindrical portion of the vibroisolating member is inserted into the hole.

Abstract: A suspension system for a refrigeration condensing unit which utilizes a simple unique elastomeric spacer instead of conventional multiple-piece spring arrangements.

Abstract: A portable, hand-held blower/vacuum unit has a housing structure defined by an upper engine shroud removably connected to the top wall of a lower impeller housing. Disposed within the shroud is a small internal combustion engine having a vertical crankshaft which extends downwardly through a depending well section formed on the top wall of the impeller housing, the lower shaft end being drivingly connected to a centrifugal fan impeller positioned within the impeller housing and operative to force a flow of ambient air therethrough. The engine is resiliently and floatingly mounted within the shroud by a resilient support system which prevents rigid contact between the engine and the shroud or the impeller housing to thereby substantially reduce engine vibration transmitted to the housing structure, and permit deflection of the engine relative to the housing structure to lessen the possiblity of engine damage caused by impeller impact from ingested objects.

Abstract: A portable air blower includes a flexibly resilient housing, a motor mounted within the housing, and a blower wheel fixed to a motor shaft. The motor is bolted at one end to a motor mounting bracket which, in turn, is attached to the housing by a plurality of first shock mounts. Each such first shock mount includes a bolt for connecting the motor mounting bracket with the housing, and a resilient elastomeric grommet interposed between the bolt and the bracket. A self-clinching nut fixes the bolt to the housing. The motor shaft rotates through a self-aligning bearing held by a pyramid-like support bracket which is attached to the housing by a plurality of second shock mounts. The second shock mounts are identical to the first shock mounts, and include a resilient elastomeric grommet interposed between the support bracket and the bolt.

Abstract: Noise of a vehicular fuel pump is reduced by determining the major frequency range of the objectionable noise and the deformation patterns of vibrating elements of the pump, and providing a passive vibrator which has designed mass, stiffness and damping values that cause it to resonate in the major frequency range and to provide an out-of-phase reaction force which is of sufficient magnitude to offset the undesired vibration. The passive vibrator may be mounted on the pressure or return line of the pump.

Abstract: A compressor assembly is disclosed including a compressor mechanism resiliently mounted within a hermetically sealed housing. The compressor mechanism includes a crankcase having a radially extending mounting flange portion, which is resiliently connected to the housing sidewall at a plurality of circumferentially spaced locations by a plurality of mounting assemblies. Each mounting assembly comprises a rubber bushing received within a hole in the mounting flange, and a threaded stud that extends through a hole in the bushing and engages a threaded hole in a steel block welded to the housing sidewall above the mounting flange. A washer and retaining nut on the bottom of the threaded stud suspendingly support the mounting flange. In this manner, only a peripheral portion of the washer contacts the mounting flange circumjacent the hole therein, thereby minimizing noise transmission to the housing. Lateral movement of the compressor mechanism is absorbed by the bushing.

Abstract: A mounting system for electric pumps used in automotive vehicles, especially those in which the pump is installed in the fuel tank. To reduce pump and pump motor vibrations and noise, which may be objectionable to passengers, the pump is mounted within a jacket enclosure carried in the vehicle fuel tank. A suspension for the pump within the jacket consists of identical mount rings of relatively soft flexible material which has internal and external relatively thin projections to contact the inner walls of the jacket on the outside of the ring and to contact the pump housing on the inside of the ring. Radial continuations of the projections establish the axial location of the pump within the jackets.

Abstract: The invention relates to a brake device for a hydraulic vehicle brake system. In this device, a return feed pump located in a feed pump housing is supported at several points between an assembly housing and a fastening plate and is movable relative to the other components. The mounting is done by screws resting in bearing tubes, the screws being surrounded by elastic damping sleeves in order to enable the elastic mobility of the feed pump housing. The line connections between the feed pump housing and the assembly housing are made by small connecting tubes resting in housing bores in the feed pump housing on one side and in the assembly housing on the other. The through bore extending through the feed pump housing in this region is sealed off on the side of the feed pump housing opposite the small connecting tubes by bolts, which with their part remote from the feed pump housing rest on the fastening plate.

Abstract: A mounting for a stepping motor (42) in a peristaltic pump (20) is provided. The mounting includes a first bracket (81) which rigidly scures stepping motor housing (58) in a radial direction while providing a bearing assembly (96) connecting the first bracket (81) and the stepping motor housing (58) to allow for free rotational movement. A second bracket (62) is also secured to the stepping motor housing (58) which includes at least one spring (72) which dampens tangential forces.

Abstract: An anti-vibratory device for attaching a hermetic compressor chamber to a base, comprises a first part located inside the chamber, consisting of several springs placed between the compressor and studs fixed to the bottom of the chamber, and a second part consisting of a block of elastic material, with means of fixing this to the chamber and the base. The underside of each stud is provided with a threaded recessed hole accessible from outside the chamber and each block of elastic material is fixed to the base and corresponding stud, and thereby to the chamber, by means of a screw into this hole.

Abstract: The present invention is a vertically upright hermetic compressor for mounting to a horizontal support surface. The compressor comprises a housing with a bottom end having an annular groove, a motor compressor unit operably disposed within the housing, and a mounting boot. The mounting boot is affixed to the housing's bottom end, having a resilient body member engaged with the groove to secure vertically the housing. An adhesive is used to bond the boot to the housing bottom, and adhesive can be used to secure the boot to a horizontal support surface of an appliance.

Abstract: The present invention is a vertically upright hermetic compressor for mounting to a horizontal support surface, having a housing, a motor compressor unit within the housing, and a mounting piece. The mounting piece is removably attached to the housing's bottom end for mounting the compressor to the horizontal support surface. It has a resilient body engaged about the housing to cover the housing bottom.

Abstract: A mounting system for electric pumps used in automotive vehicles, especially those in which the pump is installed in the fuel tank. To reduce pump and pump motor vibrations and noise, which may be objectionable to passengers, the pump is mounted within a cage enclosure carried in the vehicle fuel tank. A suspension for the pump within the cage consists of leaf spring strike-outs in the walls of the cage unit which contact the outer walls and ends of the pump housing to provide a resilient suspension radially and axially.

Abstract: A mounting for an electric fuel pump in a fuel tank of a passenger vehicle which includes an oversize, open-ended enclosure to surround a pump within the fuel tank. The enclosure is mounted on a pipe depending into the fuel tank from a cantilever connection. The pump is floatingly mounted in the enclosure by conical coil springs at each end seated respectively on the pump housing and inner flanges of the enclosure. The enclosure is formed of two telescoping portions clamped together by a plate which also traps the depending pipe to support the assembly within the fuel tank.

Abstract: The present invention is a vertically upright hermetic compressor for mounting to a horizontal support surface in an appliance. It comprises a housing with a bottom end, a motor compressor unit operably disposed within the housing, and a resilient boot attached to the housing bottom end to suppress noise and vibration emitted from the compressor. A mounting plate supports the boot for mounting the compressor to the horizontal support surface. The plate receives the boot in a central aperture and has grommets for spacing the boot above the surface and attaching it to the horizontal support surface.

Abstract: A mounting boot for mounting a vertical hermetic compressor to a horizontal base, includes a resilient cup-shaped member to receive the bottom end of the compressor housing. A cylindrical inner wall surface of the cup-shaped member frictionally engages the sidewall of the compressor. The bottom end of the compressor housing comprises a plate member having a radially extending flange portion resiliently enveloped by the inner wall surface of the cup-shaped member. The bottom end of the compressor housing is spaced from the bottom wall of the mounting boot, thereby defining an enclosed muffling chamber to suppress noises radiated from the compressor bottom end. The mounting boot is formed with radially extending mounting feet, and passages through which compressor inlet and outlet tubes may extend.

Abstract: A heat pump system comprised of an internal combustion engine and a rigidly connected refrigeration compressor is provided with a vibration isolation support having compression springs which have spring rates and natural vibration frequencies that are substantially less than the lowest operating frequency of the internal combustion engine/refrigeration compressor combination.