Abstract: A screw refrigerating apparatus comprising a refrigerant circulating passage including a screw compressor, a condenser, an expansion valve, and an evaporator is constituted such that a bypass flow passage branching at a part of the refrigerant circulating passage between the condenser and the expansion valve, routing through throttle means, and communicating with a rotor room within the screw compressor is provided. The screw refrigerating apparatus is capable of simplifying the structure, decreasing the size, decreasing labor of the maintenance, and the like.

Abstract: A condensing unit which includes a base plate having first and second oppositely disposed major surfaces. The base plate may include flanges disposed along the outer periphery of the base plate. A compressor mechanism and a condensing coil are mounted to the first major surface which faces a first direction. The flanges may also extend in the first direction. The second major surface may be substantially free of projections and define a bearing surface for the condensing unit. The motor of the compressor may have a main shaft which extends substantially parallel to the first major surface. The compressor may be a rotary compressor. There may be a conduit in fluid communication with the compressor and condensing coil and define together therewith a fluid circuit. Valves rotatably mounted on brackets and in fluid communication with the fluid circuit and operably couplable to an evaporator circuit may also be provided.

Abstract: An air conditioner includes an outdoor section comprising an outdoor coil, a fan, and a refrigerant compressor housed within a cabinet. The cabinet includes an outer wrapper supported by a plastic base. The base and wrapper include features that facilitate the cabinet's assembly and shipping, enhance its appearance, and ensure its functional and structural integrity. For example, the base includes breakaway shipping tabs, lead-ins that help guide the wrapper and coil into position during assembly, and snaps that help hold the wrapper in place with a minimal number of screws. The wrapper includes watertight screw-receiving dimples for mounting electrical hardware, side panels that interconnect by way of a novel vertically sliding fit, and a spacer for protecting the coil from being crushed by the wrapper. A frame that supports the fan also supports the cabinet's top cover.

Abstract: An electrically driven refrigeration system (10), in particular for a vehicle air conditioner, comprises a compressor (12), an electric motor (14) for driving the compressor (12), an electronic controller (16) for controlling the motor (14), a condenser (18), an expansion device (20) and an evaporator (20). These elements are interconnected in such a way as to form a refrigeration circuit for circulating a refrigerant from the compressor (12) through the condenser (18), the expansion device (20) and the evaporator (22) back to the compressor (12). The electronic controller (16) is arranged in such a way as to be in thermal exchange relationship with the refrigerant at a point of the refrigeration circuit situated between the compressor outlet (26) and the condenser outlet (28).

Abstract: A motor-driven compressor is formed integrally with a compressor device for compressing refrigerant and a motor for driving the compressor device. The motor-driven compressor includes a drive circuit and a plurality of cooling fins. The drive circuit controls the operation of the motor. The drive circuit is provided on an outer surface of a wall of a refrigerant suction route. The plurality of cooling fins are formed on an inner surface of the wall of the refrigerant suction route. In such motor-driven compressors, the drive circuit may be sufficiently cooled without using cooling devices. As a result, providing cooling devices with the drive circuit in motor-driven compressors is no longer necessary.

Abstract: A sealed unit of refrigerant fluid for a refrigeration appliance, comprising a hermetic compressor (1), a condenser (3), an evaporator (2), an expanding device, and conducting tube (4) of refrigerant fluid, at least one of the parts consisting of the condenser (3) and the evaporator (2) being defined as a prismatic body which is at least partially tubular, the component parts of the sealed unit being relatively displaced from an inoperative position of transportation, in which the hermetic compressor (1) and the conducting tubes (4) remain contained within a contour defined by the contour of at least one of the parts consisting of the condenser (3) and the evaporator (2), to a mounting operative position in a refrigeration appliance.

Abstract: An air treatment system having an outer heat exchange coil, an inner heat exchange coil spaced-apart from and encompassed by the outer heat exchange coil, seal structure positioned with respect to both coils so that air pulled through the air treatment system by air movement apparatus may flow through the inner heat exchange coil without flowing through the outer heat exchange coil; and in one aspect, an air treatment system having an outer heat exchange coil; an inner heat exchange coil within the outer heat exchange coil; the inner coil spaced-apart from the outer heat exchange coil; the inner heat exchange coil and the outer heat exchange coil defining an inner chamber therebetween; the inner chamber positioned so that air exhaust apparatus above the inner heat exchange coil moves air into the inner chamber for exhausting therefrom by the air exhaust apparatus; air flowing from outside the outer heat exchange coil, through the outer heat exchange coil, and into the inner chamber; and air flowing from outsi

Abstract: An air-conditioner, an outdoor unit and an refrigeration device each using a refrigeration cycle which can reduce power consumption so as to be highly efficient, which can be operated by a commercially available power source, and which is highly reliable. An air-conditioner comprises a motor and a refrigeration cycle including a compressor driven by the motor, an outdoor heat-exchanger and an indoor heat-exchanger, the motor being located in a motor chamber within a closed container, and refrigerant gas in the refrigeration cycle flows through the motor chamber, wherein the motor has a core of a rotor in which a cage type conductor and permanent magnets magnetized in bipolar state are embedded, and said motor is driven by a commercially available electric power source.

Abstract: An air-conditioner, an outdoor unit and an refrigeration device each using a refrigeration cycle which can reduce power consumption so as to be highly efficient, which can be operated by a commercially available power source, and which is highly reliable. An air-conditioner comprises a motor and a refrigeration cycle including a compressor driven by the motor, an outdoor heat-exchanger and an indoor heat-exchanger, the motor being located in a motor chamber within a closed container, and refrigerant gas in the refrigeration cycle flows through the motor chamber, wherein the motor has a core of a rotor in which a cage type conductor and permanent magnets magnetized in bipolar state are embedded, and said motor is driven by a commercially available electric power source.

Abstract: A motor mount assembly comprises a base panel, and a motor mount including a U-shaped steel bracket. The bracket includes a center plate, and side plates having holes for a ventilation and connecting the motor thereto. The motor is mounted on the side plates and attached by screws to front edges of the side plates. The side plates of the motor mount are bent from edges of the center plate. The side plates are stepped providing horizontal support surfaces for the motor. On the center plate and the side plates, a plurality of holes for ventilation are formed.

Abstract: A temperature control zone enclosure for exterior compressor/condensers has been developed to serve as a means of protecting the compressor/condensers from inclement weather and to automatically allow those units to operate at optimum temperature. The enclosure is comprised of a back, two sides and partial front and top walls with rigid insulation sandwiched between an outer and inner layer of material impervious to atmospheric conditions. The majority of the front and slanted top of the enclosure is comprised of two movable dual-glazed panels. Those movable panels are equipped with automatically operating interior light-reflecting horizontal slat blinds that change position in concert with the moveable dual-glazed panels that are operated by a non-electric temperature sensing operating device connected to the panels by a set of fulcrum advantaged rigid members activated as temperatures rise or fall within the enclosure.

Abstract: An upper housing shell of a hermetically sealed refrigeration compressor has a central asymmetrical section interposed between a lower cylindrical section and an upper spherical section. The shape of the central section is such that opposite points define a line that is perpendicular to the surface at one point, but is not perpendicular to the surface at the opposite point.

Abstract: A plate and tube condenser for a refrigerating apparatus, the plate sized to encompass the entire bottom region of a refrigerating cabinet to structurally stiffen the cabinet, the plate serving as an extended heat transfer surface for a serpentine tube applied thereto either by fixation thereto. An air flow baffle is arranged to divide the plate into inlet air and outlet air sections both opening to a front of the cabinet behind the air grill. Perforations are applied through the plate on the inlet section to allow incoming air to pass both below and above the plate.

Abstract: In an air conditioner in which plural outdoor units are connected to plural indoor units, at least one outdoor unit is provided with a compressor having a power control mechanism for inhibiting a part of a compression work, and the power of the compressor is made variable by controlling the power control mechanism. The outdoor unit is provided with two heat exchangers which are designed in a substantially U-shaped form, and disposed in a main body of the outdoor unit so that the opening sides thereof are confronted to each other, and the refrigerating elements which constitutes a refrigerant circuit and contains at least the compressor, an accumulator, etc. are disposed in a space which is surrounded by the two heat exchangers.

Abstract: A centrifugal type refrigerant compressor comprises at least one impeller (17, 18), electric motor (27) and drive shaft (22) mounted on non-lubricated radial bearings, such as magnetic or foil gas bearings (23, 24), with axial locating means (26) associated with the shaft (22) to restrict axial movement thereof with respect to the compressor housing (12). The housing (12) encases the motor (27) and the compressor and defines the gas inlet (31) and the gas outlet (16) passageways. Gas throttling means (34) is provided in the inlet (31), and a control means (30) varies the speed of the motor (27) and the throttling means (34) to control the compression ratio and mass flow through the compressor in accordance with the refrigeration load.

Abstract: An outdoor unit for use in a separate type air conditioner which includes an outdoor unit and an indoor unit each having at least a compressor, a heat exchanger, and a expansion device, with one unit connected with the other by refrigerant-tubes so that they altogether form an air conditioning system. The outdoor unit comprises: a baseplate, a housing having a first air intake window (side air intake window) in one of its side walls, a second air intake window (rear air intake window) formed in the rear wall extending upright from the baseplate, and an air outlet window (front air outlet window) formed in the front wall; a partition board extending upright from the baseplate and portioning for the internal space of the housing into a fan compartment for accommodating the heat exchanger and a fan for supplying air to the heat exchanger; and a machinery compartment for accommodating the compressor.

Abstract: A compression refrigeration machine is provided having ammonia as a refriant and including a condenser, a throttle device, an evaporator device, and a motor-compressor unit. The motor compressor unit includes an electric motor that drives a compressor and may be arranged in a semi-hermetic or hermetic encapsulation. In an hermetic encapsulation, the electric motor is located outside a suction gas stream flowing into the compressor and outside a discharge gas stream exiting from the compressor so that the electric motor is only exposed to an essentially static ammonia atmosphere. The motor-compressor unit and the semi-hermetic encapsulation are composed of materials stable or resistant to ammonia.

Abstract: A refrigeration compressor of the hermetically sealed type. The rotor of the motor is enclosed within the envelope providing the seal, whereas the stationary winding is external to this envelope. The refrigerant circuit cools the compressor and rotor in the normal fashion, and the stationary winding is cooled by ambient air. This reduces the total cooling burden imposed upon the compressor and its motor, thus reducing electrical consumption, In some applications, the rotor includes a magnetic drive which rotates a fan external to the envelope, which fan moves ambient air over the winding, thereby cooling the same. Thus, a second benefit is provided in that one of two motors conventionally furnished in an air conditioning condensing unit is eliminated. This increases electrical energy savings since one large motor is normally more efficient than two smaller ones, when total outputs are equal.

Abstract: A closed-type compressor comprises a closed casing, an electric motor accommodated in the closed casing and comprising a stator and a rotor, and a compressing machine operatively connected to the motor to be driven thereby. The closed casing comprises a cylindrical body case portion and cover case portions for covering two-side opening portions of the body case portion so as to provide a three-piece structure and a wall thickness of the body case portion is made to be thicker than that of each of the cover case portions. The stator is provided with a stator core and secured in the closed casing in a state where the stator core is stacked and an axial length of the stator is made to be longer than a radius of the stator core. The closed-type compressor of the character described above is applicable to a refrigerating unit, refrigerator or air conditioner.

Abstract: A closed-type compressor comprises a closed casing, an electric motor accommodated in the closed casing and comprising a stator and a rotor, and a compressing machine operatively connected to the motor to be driven thereby. The closed casing comprises a cylindrical body case portion and cover case portions for covering two-side opening portions of the body case portion so as to provide a three-piece structure and a wall thickness of the body case portion is made to be thicker than that of each of the cover case portions. The stator is provided with a stator core and secured in the closed casing in a state where the stator core is stacked and an axial length of the stator is made to be longer than a radius of the stator core. The closed-type compressor of the character described above is applicable to a refrigerating unit, refrigerator or air conditioner.

Abstract: A hermetic motor compressor comprising a shell formed by an upper and a lower cap connected one to the other in such a way that an airtight closure is obtained in the shell, and by feet fixed to the lower cap for positioning the shell in the correct position during its working, the lower cap defining lower cap lateral surfaces having a very large curvature radius connected to first, second, third and fourth curved surfaces. First and second curved surfaces being connected to a lateral plane and third and fourth curved surfaces being connected one to the other, the lower cap defining a sphere-shape in a lower part thereof and a band in the upper part thereof which is joined to the upper cap.

Abstract: An outside section for a split system air conditioning unit. The outside section has a housing including a first side, a second side, a top, a bottom, a front, and a back. The housing also includes an air inlet located in a middle portion of the front, and an air outlet located in the first side. A first baffle divides the housing interior into first and second segments. The first segment includes the air inlet, the air outlet and a heat exchange coil located therebetween, and the second segment includes a compressor operably connected to the heat exchange coil.

Abstract: A roof-mounted air conditioning system has a built-in compressor compartment between the condensor and evaporator sections, the fans in the condensor section inducing the flow of air through the compressor compartment and into the condensor section through louvered vents in the partition wall between the compressor and condensor sections, and the air flowing from the compressor compartment is confined to flow directly across the condensor coils so as to satisfy the normal cooling requirements in the condensor section.

Abstract: A method of releasably securing a blower motor to a cover for a unit for conditioning air with the blower motor having at least one end frame and with the cover and the at least one end frame respectively including a set of means for interconnection in releasable engagement with each other, respectively. In practicing this method, the at least one end frame is positioned adjacent the cover, and the interconnecting means are respectively associated with each other. The blower motor is rotated relative to the cover, and the interconnecting means are respectively interconnected with each other upon the rotation of the blower motor thereby to releasably secure the blower motor to the cover. A lock screw is interlocked in engagement between the cover and the at least one end frame to obviate displacement of the interconnecting means from their respective interconnections in releasable engagement with each other.

Abstract: In a room air conditioner, at least the condenser, and preferably both the compressor and the condenser, are separated from the main body of the air conditioning apparatus, and are mounted in an exteriorly facing wall, outside the room which is to be cooled. The main body of the air conditioning apparatus is connected with compressor and condensor mounted in the wall by connecting piping and fittings and is mounted on the wall by a hanging bracket and position-fixing spacer bracket.

Abstract: A refrigerator and/or freezer for installation into a row of kitchen units has a door and a recessed base below the door, the recessed base being adapted to accommodate variable heights of the recessed base relative to the floor supporting the refrigerator/freezer and variable amounts of recession relative to the door. A main ventilation channel and two side ventilation channels are defined in the recessed base. The cooling unit is disposed in the recessed base and has compressors, a condenser and a fan for circulating air through the main ventilation channel and the side channels. An adjustable ventilation grille is disposed on the front portion of the ventilation channels by two fixed inner wall sections and two side wall sections movably supported on the fixed inner wall sections. The ventilation grille is mounted so as to be both vertically adjustable in discrete steps on the recessed base, as well as horizontally adjustable to adjust the amount of recession of the base.

Abstract: A flat air conditioner for railway vehicle for installation on the roof of a vehicle is advantageous from the viewpoint of reducing air resistance to the vehicle and the design of the vehicle. The present invention provides such a vehicular air conditioner incorporating an horizontally longer compressor or compressors disposed with the longitudinal axes in a horizontal plane or disposed in a return air chamber to construct the air conditioner in a flat configuration with a small height and in a compact construction.

Abstract: A heat pump installation including a condenser, a motor-compressor, an evaporator, and a subcooler to subcool the refrigerant flowing from the condenser before it enters the evaporator. The motor-compressor is mostly immersed in a static liquid contained within an inner tank. Preferably, the static liquid contains a top layer of oil to prevent evaporation. The static liquid helps to ensure the cool and quiet operation of the motor-compressor. Surrounding the inner tank is an outer tank which provides a cylindrical chamber wherein circulating liquid such as water flows. Immersed within the circulating water is the condenser. The circulating water withdraws heat from the inner tank and the condenser. The subcooler includes a housing which contains and directs the flow of the circulating water before it enters the cylindrical chamber. Immersed within the circulating water of the subcooler housing is a refrigerant subcooling coil.

Abstract: An outdoor heat exchanger coil has a fan on one side thereof for forcing ambient air through the coil and a partition on the other side thereof. The partition is placed relatively close to the coil to thereby define a channel which allows the flow of ambient air therethrough without any substantial decrease in system capacity or airflow. A comparison between the channel width and the channel length is made to define the limits of minimal separation between the coil and the partition.

Abstract: The control box for a refrigeration condensing unit has a heat sink mounted on its rear side between the control box and the coil assembly, the heat sink being in the flow path of the cooling air flowing in thru the coil such that the heat dissipation therefrom is substantially enhanced. The heat sink has a plurality of fins formed on its rear side, with the fins extending across the relatively narrow width of the heat sink such that the cooling air flows over the entire length of each of the fins and provides a substantially uniform velocity profile along the heat sink vertical axis.

Abstract: A compressor for a reversible refrigeration cycle is connected to indoor and outdoor heat exchangers through first and second refrigerant pipes. The compressor includes a closed casing defining an accumulation chamber therein. A compression section having a compression chamber is disposed in the casing so that a refrigerant is compressed in the compression chamber and then discharged into the accumulation chamber. A valve mechanism is disposed in the compression section and has a slider. The slider is arranged to be movable between a first position where the first and second refrigerant pipes are connected to the compression chamber and the accumulation chamber, respectively, and a second position where the first and second refrigerant pipes are connected to the accumulation chamber and the compression chamber, respectively. The slider is shifted to the first or second position by the pressure of the refrigerant.

Abstract: A roof mounted air conditioning unit for recreation vehicles comprising a cabinet made up of a base pan and a removable shroud. The base pan has a bottom wall and an upstanding perimeter wall with an outwardly protruding porch flange extending around the entire upper edge of the perimeter wall to provide stiffening reinforcement and a ledge on which the shroud seats. The ledge has air inlets and outlets therein providing air flow communication between ambient air and the condenser compartment. The perimeter wall also has air inlets and outlets therein. The shroud is generally imperforate and serves as a roof-like cover for the base pan. The shroud has a generally light color and the base pan has a generally dark color such that the air inlets and outlets in the pan perimeter wall are camouflaged from view. The cabinet is sub-divided by bulkheads into junction compartments including an evaporator coil compartment and the condenser coil compartment.

Abstract: A spool valve is located within the shell of a hermetic compressor unit and shifted by a solenoid valve to direct the discharge of the compressor through either of two lines through the shell. Depending upon the line used as the discharge line, the compressor is suitable for either heating or cooling and is the equivalent of a reversible compressor. Alternatively, a spool valve can connect the suction line of a compressor to either of two lines extending through the compressor shell.

Abstract: A motor-driven compressor condenser group for equipment actuating cooling-cycles, such as for example cooling apparatuses and heat pumps, enclosed in a single container.The cooling fluid of the heat-exchanger connected to the condenser passing to and from the container is to be used in domestic cooling systems to heat water.

Abstract: A reversible, hermetically-sealed rotary compressor driven by a reversible electric motor for use in a refrigeration system comprising a compressor cylinder, a rotor eccentrically rotatable in the cylinder and a vane dividing the cylinder into interchangeable high and low pressure sides. A switch-over member automatically directs refrigerant into one or the other fluid passageways leading to the refrigeration system as an incident of motor rotation.

Abstract: A wrapped fin heat exchanger is disclosed having variable spacing between adjacent loops forming the heat exchanger. Various embodiments are shown wherein the spacing between adjacent loops of single row and multi-row coils is varied to provide for equal heat transfer per loop of the heat exchanger and to effectively level out the air flow per loop. The various embodiments include varied spacing over a single row coil and multiple row coils having partial second rows and second rows with varied spacing while the first row has fixed spacing.

Abstract: A wrapped fin heat exchanger formed from a continuous length of tubing having a fin wrapped thereabout to provide an enhanced heat transfer surface is disclosed. A cylindrical core portion is formed from loops of tubing and a second cylindrical locking portion is mounted thereabout. The locking portion has bands which extend about and in engagement with the loops of the core portion to secure the heat exchanger in a predetermined configuration. By utilization of the locking portion and the core portion the unwinding of the heat exchanger is prevented and its structural integrity is maintained for subsequent manufacturing operations.

Abstract: This disclosure is directed to a heat exchanger housing which includes an upstanding peripheral wall terminating in an upper peripheral terminal edge spanned by a cover and having disposed thereat an air-restricting baffle for restricting the flow of ambient air into the housing through a space between the cover and the upstanding peripheral wall to reduce the possibility of an open flame being blown out by high air movement exteriorly of the housing when the heat exchanger is operating under its heat-augmented mode of operation, the housing further including an upper transversely disposed generally Z-shaped supporting bar to support the cover in overlying spaced relationship to the housing peripheral wall.

Abstract: A suspension system for a motor compressor unit mounted within a hermetically sealed shell. The shell defines at least one chamber filled with refrigerant suction gas and a second chamber filled with refrigerant discharge gas. The compressor's cylinder block includes a wall member extending into contact with the interior surface of the shell to support the unit in a vertical plane taken through the shell.

Abstract: Terminal board and relays casing assembly externally fixed in a suitable position on the sealed motor compressor housing placed in a suitable compartment defined in the lowest rear portion of the refrigerator. A side wall of the box in front of an observer who places himself behind the refrigerator, acts as a mounting for the terminal board, the electrical mains supply feeder cable being connected thereon. A cover slides on a suitable guide shaped to contain in the box the terminal board, the thermal protector and starting relays.

Abstract: A wire guide assembly for use in an air conditioning system having a heat exchange unit. A wire guide assembly acts to provide a secure cavity through which wires emanating from the control area and flowing to a separately located electrical component may pass. The wire guide assembly serves to protect the wires from engagement with either a rotating fan or a heat exchanger. The wire guide assembly includes a control area member having a T-shaped opening, a retainer and a cover slidably engaged to the retainer.

Abstract: A refrigerating system including a refrigeration circuit and a scroll type compressor provided with two volume control mechanisms to allow the system to selectively perform full load operation and unloaded operation. The scroll type compressor includes two scroll members of known construction meshing with each other to define compression chambers and a suction chamber and is combined with the refrigeration circuit having an outdoor heat exchanger, an expansion valve, an indoor heat exchanger and a four-way change-over valve to provide a heat pump type refrigerating system. The volume control mechanisms each include a pair of bypass apertures in the fixed scroll member communicating with a valve chamber having a valve member slidably mounted therein and normally biased to an open position by a spring. The bypass apertures, of which one communicates with the suction chamber and the other communicates with one of the compression chambers, and the valve chamber constitute a bypass passageway.

Abstract: A reversible hermetically sealed rotary compressor for use in a refrigeration system comprising a compressor cylinder, a rotor eccentrically rotatable in the cylinder and a vane dividing the cylinder between high and low pressure sides relative to direction of rotation of the rotor. Suction and discharge ports provided for each direction of rotation are automatically switched by changing the direction of rotation of the rotor.

Abstract: An air-cooled condenser having cooling face areas so configurated as to form two closed or substantially closed nested loops in spaced relation to provide a common inlet air duct between the face areas communicating with an air mover; the cooling air passages through the loops being in generally opposed relation down stream from the common inlet duct. In one embodiment a section of the outer loop is displaceable for servicing the compressor.

Abstract: A refrigeration system in which compressors are mounted in one compartment of the housing and condensers and receivers are mounted in an adjacent compartment. Ambient cooling air flows first into the compressor compartment, then into the condenser compartment, and then to the atmosphere. Parallel flow paths from the compressor compartment to the condenser compartment are provided--one flowing the air over the condensers, the other bypassing the condensers, before being expelled. The bypass has a movable flapper valve controlled by the ambient air temperature which causes the ambient air to bypass when its temperature drops below a given point. A shroud encloses the receivers and has a fan-driven heater controlled by the same thermal sensor that controls the flapper valve.

Abstract: According to the embodiment shown, the novel body assembly, for use as a principal component for a fluid cooler, comprises a body of annular configuration formed from a pair of mirror-image halves which are fastened together to form a fluid-conducting channel therewithin. Each of the mating halves has a multiplicity of heat-radiating fins or ribs on the surface thereof which defines an outer surface of the body assembly. Additionally, the halves of the body have fins on their opposite surfaces and, on assembly together, these latter are interleaved, and define an undulating channel through which the fluid to be cooled is conducted.

Abstract: There is disclosed herein an improved motor protection assembly for a motor compressor comprising a motor cover having an opening provided on a side wall thereof adjacent the exposed end turns of the motor stator windings. A motor protection device is adjustably secured to the motor cover and projects through the opening into engagement with a portion of the stator windings so as to enable sensing of abnormal conditions existing within these windings. The motor protection device is electrically connected to the stator windings so as to de-energize the windings in response to such abnormal sensed condition. The adjustable securing arrangement allows the axial positioning of the motor protection device within the opening to be varied thereby enabling a standard motor cover to be used with stator windings of different sizes and different manufacturers.

Abstract: A refrigerator having a cooled induction motor, the housing interior of which is completely filled with a cooling medium, and having a cooler for the re-cooling of the cooling medium in the housing interior by means of another medium separate from the cooling medium of the motor, in which insulating cooling oil is contained as cooling medium in the housing interior of the induction motor.

Abstract: Two motor-compressor units of the vertical shaft type are housed in spaced parallel relation in a common sealing housing. A hollow chambered partition extends transversely within the housing between the units and is attached to the side walls and top wall but spaced from the bottom wall. The partition functions as a suction gas header, substantially isolates the suction areas above the oil level, and stiffens the housing walls, inhibiting resonant vibration.

Abstract: A sealed type motor-compressor having such structure that a refrigerant gas is directly led from an intake pipe to a cylinder, is described herein. The sealed type motor-compressor is characterized in that between an intake pipe opening within a sealed housing and a gas inlet portion of a cylinder, is provided a connecting member which can slidably follow a relative movement in every direction of an internal component of said motor-compressor.