Abstract: The invention concerns a suction muffler for a hermetically enclosed compressor with a housing that has at least a first and a second chamber, separated from each other by means of a division wall and connected with each other by means of a throttling channel, which is designed to allow flow from the first to the second chamber.

Abstract: A fluid compressor includes a compressor inlet for receiving a medium, a compressor for compressing the medium, a compressor outlet for discharging the compressed medium and a compressor muffler. The compressor muffler includes a housing defining an inner space, an inlet for receiving a compressed medium, a muffling structure located in the inner space, wherein the muffling structure has a plurality of chambers for receiving the compressed medium from the inlet, an outlet for discharging the compressed medium and a flow path located in the inner space; The flow path communicates the inlet with the muffling structure and the muffling structure with the outlet; A method for reducing any noise-generating frequencies present in a compressed medium is additionally presented.

Abstract: The invention relates to a suction muffler for a hermetically enclosed compressor, with a housing having a first part with an outlet channel and a second part with an inlet channel, flow conducting means being arranged between the outlet channel and the inlet channel, said means forming, together with the inlet channel and the outlet channel, a flow path, and a filter being arranged in the outlet channel.

Abstract: Suction muffler for a compressor including an inlet for introducing a refrigerant into the suction muffler, a chamber for temporary storage of the refrigerant and dropping a pressure of the refrigerant by means of a sudden increase of a volume of the refrigerant, a resonator for attenuating a noise of a specific frequency, a refrigerant supply tube for leading the refrigerant from the chamber to a cylinder, thereby stopping transmission of a pulsating flow occurred by the piston movement in the cylinder to outside of the refrigerant supply tube and preventing transmission of a noise from a suction valve and a discharge valve to outside of the suction muffler, wherein the chamber includes a vibration member having a vibration frequency corresponding to a pulsation frequency occurred at the refrigerant supply tube, thereby increasing supply of refrigerant to the cylinder a improving a performance of the compressor.

Abstract: An air pump for a fish-tank comprises a compartmental air chamber assembly formed by a base plate and a casing in the body. Hence, an indirect prolonged air path is formed in the air chamber assembly, resulting in a great reduction of noise generated while operating.

Abstract: Disclosed herewith is a compressor with mufflers. The compressor comprises a drive unit, a compression unit, at least a pair of exhaust mufflers, a coolant exhaust conduit, and a connecting conduit. The drive unit generates power. The compression unit sucks, compresses and exhausts coolant using power transmitted from the drive unit. The exhaust mufflers temporarily store coolant exhausted from the compressing unit. The coolant exhaust conduit is connected to one of the exhaust mufflers to guide the exhaust of coolant to the outside. The connecting conduit connects the exhaust mufflers to each other to cancel out noises during the recombination of divided coolant in one of the exhaust mufflers.

Abstract: A discharge muffler of a hermetic rotary compressor has a simple structure, and reduces the noises which occur due to pulsation of refrigerant and impact to a valve when the refrigerant, which is compressed in an inner space of a cylinder of the compressor, is discharged. The discharge muffler includes a muffler body which is disposed above an upper flange to define a noise reducing space with the upper flange, and has a pair of discharge openings through which the refrigerant, which is discharged to the noise reducing space, is discharged, and a phase varying means for preventing the noises which occur due to the pulsation of the refrigerant and the impact to the valve which is disposed at the discharge port, from being discharged together with the refrigerant. The phase varying means also functions to vary the phases of the noises and to counterbalance the noises.

Abstract: The object of this invention is to provide a working-fluid intaking structure for hermetic compressors. In the working-fluid intaking structure for hermetic compressors of this invention, a coupling cap (20) connects a suction muffler (9) to a suction pipe (10), with a plurality of external and internal pressure projections (25 and 25′) regularly formed on the external and internal surfaces of the coupling cap (20). Of the two types of pressure projections (25 and 25′), the external projections (25) come into close contact with the internal surface of a cylindrical suction port (9′) of the suction muffler (9), while the internal projections (25′) come into close contact with the external surface of a coil spring (12) that connects the suction pipe (10) to the coupling cap (20). The pressure projections (25 and 25′) thus firmly hold the coupling cap (20) at a desired position in the suction muffler (9).

Abstract: A damping device is arranged in a gas passage in a compressor for damping compression waves transmitted from suction valves. The damping device includes a damper arranged in a damper hole provided in a pipe fitting of the compressor housing. The damper has concentric inner and outer cylindrical walls, and end wall closing ends of the inner and outer cylindrical walls, and radial holes at the end of the inner cylindrical wall. The outer cylindrical wall is arranged in the damper hole and the inner cylindrical wall is fitted in the fitting hole leading to the suction chamber. A gas passage is formed by an inner passage portion, radial holes, an inter-wall passage portion, a radial passage portion at the end opposite to radial holes, and an outer passage portion between the outer cylindrical wall and the side cylindrical wall of the damper hole.

Abstract: There is provided a baffle plate of a discharge muffler for a hermetic reciprocating compressor which is mounted in an inner portion of the discharge muffler mounted at a lower portion of a cylinder block so as to reduce flow noise of a refrigerant discharged to a discharge pipe, characterized in that an extended duct, which is communicated from a center portion of the baffle plate to the discharge pipe and has a diameter, is formed during a press molding. The extended duct is formed to be directed to the cover from the baffle plate by a burring process during a press molding, thereby improving the noise excluding efficiency.

Abstract: A mount both supports a compressor, and provides fluid communication, between the compressor and a heat exchanger. A first axis is defined extending through the compressor center of mass. A second axis is defined extending parallel to the first axis and positioned a distance from the first axis. A manifold is provided by the mount, and has an inlet and an outlet. The inlet is positioned along the first axis and connected to the heat exchanger and the outlet is positioned along the second axis and connected to the compressor.

Abstract: A suction sound damper for a hermetically encapsulated compressor has a housing that is formed of at least an upper part (3), a lower part (1) and an insert (2), and having at least two chambers (7, 8) and a channel (9), connected thereto, leading from a lower inlet opening (10) to an upper outlet opening (11). The insert (2) has a side wall (18) which, together with a section (19) of the housing wall, forms a capillary gap (20) in which lubricating oil collects and is retained. This produces additional sound damping.

Abstract: Disclosed is a suction muffler including a muffler inlet, a muffler outlet communicating with the muffler inlet, a plurality of reservoirs defined between the muffler inlet and the muffler outlet, a plurality of small-diameter tubes adapted to allow the reservoirs to communicate sequentially with one another, and a vibration absorbing member installed on an inner wall surface of each of the reservoirs at a region where a flow of fluid sucked at a high velocity into the muffler inlet and forced to flow to the muffler outlet via the small-diameter tubes is struck against the inner wall surface, the vibration absorbing member serving to absorb vibrations generated due to pulsations of the fluid flow resulting from the striking of the fluid flow against the inner wall surface, thereby attenuating flow noises resulting from the vibrations. This suction muffler obtains an effect capable of offsetting noises generated when refrigerant gas flows are struck against inner constructions of the suction muffler.

Abstract: Disclosed is a muffler in which a helicoil member is installed in each conduit, through which refrigerant gas flows from or into an expansion chamber during reciprocating movements of a piston in a cylinder. The helicoil member has diverse twisted angles and diverse twisted shapes, and serves to divide pulsation of noise, generated during the reciprocating movements of the piston, into pulsation of different phases, and then to merge the divided pulsation together, while allowing the refrigerant gas to have the form of a vortex flow. As pulsation of noise generated during an operation of sucking refrigerant gas pass along different travel paths defined by the helicoil member, a mutual interference occurs between the pulsation respectively emerging from the travel paths of the helicoil member. Therefore, an increased offset effect for the pulsation of noise is obtained, which maximizes a noise attenuation effect.

Abstract: A hermetically sealed shell (21) contains a reciprocating hermetic compressor that has a suction inlet tube (28) for admitting gas into the shell; a suction orifice (24a) which is provided at the head of a cylinder (22) disposed inside the shell (21) and which is in fluid communication with the suction inlet tube (28). A suction duct (60) has a first end (61) hermetically coupled to the suction inlet tube (28) and a second end (62) hermetically coupled to the compressor suction orifice inlet (24a) and conducts low pressure gas from the suction inlet tube (28) directly to the suction orifice (24a) inside of shell (21), the suction duct (60) providing thermal and acoustic energy insulation to the gas being drawn into the compressor and is dimensioned to produce a load loss reduction in the gas flow from the suction inlet tube (28) to the suction orifice (24a).

Abstract: Noise attenuating apparatus for housing, inter alia, a compressor and/or condenser unit, the apparatus comprises a substantially box-shaped outer shell and an inner shell which houses the unit. The outer shell is formed with a primary air inlet to receive air into the apparatus and a primary air outlet for discharge of spent air from the apparatus. The inner shell includes an inner chamber and is formed with a secondary air inlet to receive air supplied via the primary air inlet means into the inner chamber to supply air to the unit. The inner shell is also formed with a secondary air outlet opening for flow of spent air from the inner chamber. The space between the inner and outer shells defines a tortuous flow path for the removal of spent air from the apparatus through the primary air outlet means.

Abstract: A compressor includes a discharge chamber into which pressurized refrigerant gas is intermittently discharged. The pressurized refrigerant gas in the discharge chamber is sent to an external refrigerant circuit. A chamber for accommodating a resonance suppressing adapter is located between a discharge muffler and the external refrigerant circuit. The adapter includes a float valve and a spring. The float valve can move between a position connecting the accommodation chamber to the muffler and a position disconnecting the accommodation chamber from the muffler. The spring urges the float valve to its closed position. The force of the spring is determined such that the discharge pulse frequency of the refrigerant gas does not coincide with the natural resonance frequency of the external refrigerant circuit or at least such that the amplitude of pressure variations of the refrigerant gas is reduced.

Abstract: A suction muffler for a hermetic sealed reciprocating compressor which comprises (i) a muffling chamber having a body of a synthetic polymeric material and (ii) a synthetic polymeric perforated tube passing through the muffling chamber carrying refrigerant fluid from the suction tube of the compressor to the suction port on the valve plate of a cylinder in which a piston reciprocates. The muffling tube may be made divergent along at least 10% of its length. The muffler is mounted directly in the cylinder head by means of a tongue and slot formation avoiding the need for a suction plenum between the suction muffler and the valve plate inlet.

Abstract: In a discharge pulsation damping apparatus of a compressor according to this invention, an expansion muffler 46 and a resonance muffler 58 each having a predetermined capacity are defined inside cylinder blocks 11 and 12 through partitions 59 and 60 so that the resonance muffler 58 is situated at a position higher than the expansion muffler 46 in a gravitational direction (vertical direction). The expansion muffler 46is connected to discharge chambers 38 and 39 and to an outlet 48, and both mufflers 46 and 58 are communicated by a communication passage 61 formed in the partitions 59and 60. The capacity of the resonance muffler 58, the open sectional area of the communication passage 61 and its passage length are set to values such that a pressure change capable of offsetting specific frequency components of the discharge pulsation inside the expansion muffler 46 can be generated inside the resonance muffler 58.

Abstract: A vibration damped structure, which is excellent in vibration absorption and sound absorption effect, is provided by coating the surface of a structure to be damped with a mixture of molten photopolymerizable resin and a photopolymerization initiator and then subjecting the coated surface to irradiation, whereby a vibration damping coating is formed on said surface.

Abstract: A rolling piston type rotary compressor includes a cylindrical cylinder having a motor and a compression unit driven by the motor disposed inside of an enclosed container. A roller is externally fitted to the crank of a drive shaft coupled to the motor for moving along the inner side of the cylinder. Plural blades move in and out of the cylinder so that the leading end may slide on the outer circumference of the roller. This partitions the compression chamber formed by the inner side of the cylinder and the outer circumference of the roller nearly at same intervals. A suction port and a discharge port are disposed in each divided compression chamber, in which a common muffler chamber is disposed between the suction port of each compression chamber and the compressor external suction piping system. Each suction passage from each suction port to the muffler chamber is nearly at a same length.

Abstract: Electric compressor comprising a compression cylinder and the respective head, a valve plate arranged between the head and the body of said cylinder and provided with a gas inlet opening, a silencer arranged at the inlet side of said opening and comprising an elongated portion with an aperture adapted to fit in with said opening. The head is provided externally with a concave recess which is laterally open towards the inner cavity of the compressor, said elongated portion of the silencer being firmly housed in said recess so that the aperture engages the opening in the valve plate in an air-tight, sealed manner. In said recess there is provided a hollow space between said elongated portion and the outer wall, said hollow space being adapted to accommodate an elastic element for locking the silencer in place.

Abstract: A resonator for a rotary compressor is provided to prevent generation of impact exciting force and pulsation sound occurred due to pressure pulsation and reduce a noise of a low frequency band generated in the compressor by forming a curved portion at a narrow unit of the resonator which is a pressure pulsation inflow path and controlling the ratio of a diameter to a length of each of the narrow unit and a resonance unit, for thereby smoothing the inflow of the pressure pulsation generated from a pressure chamber. To achieve such a resonator, in a resonator for a rotary compressor, which consists of a narrow unit serving as an inflow path of pressure pulsation which is generated from a compressor and communicating with an exhaust outlet and a resonance unit for reducing a noise by attenuating the pressure pulsation element flowed through the narrow unit, the improved resonator for the rotary compressor according to the present invention includes a curved portion formed at an end portion of the narrow unit.

Abstract: A section arrangement for a reciprocating hermetic compressor, includes a hermetic shell (21), a suction inlet tube (28) for gas admission and a suction orifice (24a) at the head of a cylinder (22) disposed inside the shell (21) and which is in fluid communication with the suction inlet tube (28). A suction duct (60) has a first end (61) and a second end (62), which are hermetically coupled to the suction inlet tube (28) and suction orifice (24a), respectively, in order to conduct low pressure gas from the suction inlet tube (28) directly to the suction orifice (24a) and to provide thermal and acoustic insulation to the gas flow being drawn. At least one pressure equalizing element (70) provides a predetermined fluid communication of the gas being drawn between the suction inlet tube (28) and the suction orifice (24a) into the shell (21) and maintains the thermal and acoustic insulating characteristics of the suction duct (60) substantially unaltered.

Abstract: A hermetic compressor of the present invention is provided with one or more small holes 17 formed in the shell of the suction muffler 16 formed with a low thermal conductivity material such as synthetic resin. The small holes 17 are positioned at nodes 18 in a vibration mode for the resonance frequency of the space formed in the hermetic shell, so that amplification of the resonance sound of the space in the hermetic shell 1 is suppressed. Furthermore, a shortage of the refrigerant is supplemented by the refrigerant gas sucked from the hermetic shell 1 through the small holes 17 when it occurs due to a suction loss caused by the resistance of the flow path for guiding a high density refrigerant gas from the suction tube into the cylinder 8 according to the circulation of the refrigerant.

Abstract: The present invention provides a hermetic-type compressor delivering high refrigeration capability at low noise. The hermetic-type compressor of the present invention is provided with a position adjustment mechanism, a communication/shutoff mechanism, a passage changeover mechanism or the like so as to dispose the opening end of a suction passage, which is provided in an enclosed container and used to communicate the cylinder of its compressor with the enclosed container, on a predetermined plane so that the opening end is aligned with the position of a node of a resonance mode generated in the enclosed container.

Abstract: The suction muffler for a hermetic reciprocating compressor having a reciprocating compressing portion, comprises a muffler body formed with a space for containing a refrigerant and having a refrigerant inlet for receiving the refrigerant and a connection portion for transferring the refrigerant to the compressing portion. A wall partitions the refrigerant containing space into a first containing portion which is connected to the refrigerant inlet and a second containing portion which is connected to the connection portion. The partitioning wall is formed with a hole for communicating the first containing portion with the second containing portion. A tubular baffle extends from the connection portion to the inside of the containing space. Accordingly, various paths having various resonance lengths are provided, thereby damping noises having various frequency components effectively.

Abstract: An electrical insulating polyester film has an apparent density of 1.37 to 0.85 g/cm.sup.3 and a tensile modulus of 2.0 to 4.5 GPa.A film having low oligomer content, low cost, high heat resistance, high impact resistance, superior machinability and processability, assembling stability, and superior visibility is obtained. Furthermore, leakage of current is reduced when it is used for motor insulation.

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 hermetically sealed compressor includes a cylinder forming a compression chamber, and a piston reciprocally mounted in the cylinder for compressing gaseous refrigerant. A mixture of gaseous refrigerant and lubricating oil is conducted via a conduit arrangement to a suction muffler located upstream of the compression chamber. The conduit arrangement includes, at an inlet to the suction muffler, radially inner and outer tubes forming a channel therebetween. Gaseous refrigerant flows into the suction muffler through the inner tube. Lubricating oil traveling radially outwardly of the gaseous refrigerant enters the channel and is discharged from a downstream end of channel and thus does not enter the suction muffler.

Abstract: An inlet silencer system for a refrigeration motor-compressor set. An inlet silencer is formed by a casing separated by a wall into two chambers which are coupled to each other by a coupling tube. A lid bearing an intake tube introduces refrigerant gas into the first chamber and a lead-in pipe connects the second chamber to the suction part of the cylinder head. The ratio by volume between the two chambers is in the order of 1. This ratio is determined to obtain a diminishing of the acoustic energy in the range of a frequency of 500 Hz. Furthermore, a chamber which is parallel connected on the suction path is used as a resonator to improve the attenuation and the acoustic spectrum. This device can be used on low-power, hermetically sealed, single-cylinder, alternating motor-compressor sets.

Abstract: A suction muffler for a hermetic compressor, comprising a hollow body (10) affixing a gas duct (20) which is defined by a gas inlet portion (21) having an inner end (21a) internal to said muffler body and an outer end (21b) external to said muffler body and in fluid communication with a suction inlet tube (8) provided in the hermetic shell (1) of the compressor, and a gas outlet portion (22) having an inner end (22a) internal to said muffler body and an outer end (22b) external to said muffler body and connected to a suction orifice, which is provided in the head (5) of a cylinder disposed inside the shell (1) and where is mounted the suction muffler, the extension of the gas duct (20) internal to the hollow body (10) being spaced from the walls thereof.

Abstract: An absorptive silencer is used in a compressor which compresses a mixture of HFC-134a refrigerant and esther-based refrigeration oil. The silencer consists of low oligomer type of PBT resin 64.8-0.2%, to thereby improve a refrigeration efficiency.

Abstract: An improved suction noise muffler mounting apparatus for a hermetic compressor which is capable of more simply mounting a suction noise muffler to a cylinder head, for thus reducing the number of fabrication processes and increasing the productivity of a hermetic compressor, which includes a suction noise muffler head having a protrusion having a predetermined height and formed on the upper surface thereof and integrally engaged to an upper end of the suction noise muffler, and a fixing member provided for mounting the suction noise muffler to a portion of the cylinder head.

Abstract: A suction noise muffler for a hermetic compressor which is capable of enabling a smooth flow of a refrigerant gas and reducing a suction noise by forming a predetermined shaped refrigerant gas flow guide path and a plurality of noise reducing sections, which includes an upper casing having a rectangular outer wall and a plurality of inner walls arranged within the outer wall, and a lower casing whereby the upper casing is inserted into the lower casing, for thus forming a refrigerant gas flowing path and a plurality of noise reducing sections thereby when assembling the upper casing and lower casing.

Abstract: In a reciprocating compressor in which a suction chamber (7) extends around a discharge chamber (6) parallel to suction, a discharge gas conducting passage (6c) is connected to the discharge chamber and is adjacent to a suction gas inlet passage (7a) in a predetermined direction orthogonal to the plane. The suction gas inlet passage communicates with each of the first and second opposite ends of the suction chamber so that gas is supplied into the suction chamber through each of the first and second opposite ends thereof. A plurality of compression elements are arranged along the suction chamber and connected to the discharge chamber and the suction chamber. Each of the compression elements have a piston (16) which reciprocates to introduce the gas from the suction chamber, to compress the gas, and then to discharge the gas into the discharge chamber.

Abstract: The present invention relates to a muffler apparatus of a compressor for hermetically and easily assembling a suction muffler and a base muffler disposed at the compressor so as to suck and attenuate the noise generated by refrigerant evaporated from an evaporator, the apparatus comprising: a suction muffler for being formed with a suction inlet for the refrigerant to be sucked thereinto and for being formed at one side thereof with a third tripping unit; a base muffler for being formed with a first and a second tripping unit protruded from the base muffler and into the third tripping unit protruded from the suction muffler, so that the base muffler and the suction muffler can be hermetically assembled to leave no gap therebetween.

Abstract: In a compressor there is a hermetic case (1) having a high pressure gas outlet (1a) that houses a cylinder block (3) defining a gas suction chamber (7) and a gas discharge chamber (8). A main gas discharge tube (9) has an inlet end (9a) in fluid communication with the gas discharge chamber (8) and an outlet end (9b) communicating the gas discharge chamber (8) with the gas outlet (1a) of the case. At least one gas discharge auxiliary tube (10) is provided with an inlet end (11) receiving gas from the discharge chamber (8) and an outlet end (12) to provide the gas to the gas stream flowing in the main gas discharge tube.

Abstract: A reciprocating compressor includes a piston mounted for reciprocation in a bore of a cylinder. A cylinder head is mounted on the cylinder at one end of the bore for conducting fluid to and from the bore. A muffler is connected to the cylinder head for conducting the fluid to the bore. The muffler includes a base member and a muffler body secured thereto. The base member includes a recess in which a leading portion of the muffler body is installed. Hooks formed on the leading portion become caught against securing edges formed in the recess to resist rearward withdrawal of the muffler body. A floor of the body is elastic, to push the hooks against the securing edges. Also, side walls of the recess push elastically against the leading portion of the muffler body. Consequently, there is no play between the muffler body and base member which could produce noisy rattling during operation of the compressor.

Abstract: An improved suction noise muffler for a hermetic compressor which is capable of discharging residual oil which is introduced together with a refrigerant gas using the weight of the oil itself by equipping with an oil discharging valve unit at an oil discharging unit, which muffler includes a guide path for guiding a refrigerant gas introduced through an inlet portion along a connected path, resonant and noise reducing chambers formed for reducing noise of the refrigerant gas which flows along the guide path, and an oil discharging section having an upper discharging section in order for the oil introduced into the resonant and noise reducing chambers together with refrigerant gas to be discharged through the discharging valve unit operated by the weight of the oil, with the oil discharging valve unit being formed in the upper discharging section.

Abstract: A reciprocating compressor includes a cylinder block disposed in a chamber formed by a casing. A piston is mounted for reciprocation in a bore of the cylinder block. A valved cylinder head is disposed at an end of the bore. The cylinder head conducts sucked fluid to the bore. The sucked fluid enters the casing through an inlet therein and travels through a suction passage formed by a suction muffler and then through a base muffler before entering the cylinder head. The suction muffler includes exterior holes for communicating the suction passage of the suction muffler with the chamber of the casing, to thereby reduce the suction load occurring at the bore and valve plate.

Abstract: A noise-reducing apparatus for a linear compressor which can significantly reduce noise by forming a multistage silencer in the suction side of a refrigerant passage of a linear compressor in which an axial flow valve system is adopted and therein a plurality of silencers formed connected to the suction side of the refrigerant passage inside a piston slidably disposed inside the cylinder.

Abstract: An improved suction noise muffler mounting apparatus for a hermetic compressor which is capable of more simply mounting a suction noise muffler to a cylinder head, for thus reducing the number of fabrication processes and increasing the productivity of a hermetic compressor, which includes a suction noise muffler head having a protrusion having a predetermined height and formed on the upper surface thereof and integrally engaged to an upper end of the suction noise muffler, and a fixing member provided for mounting the suction noise muffler to a portion of the cylinder head.

Abstract: A muffler including fiberglass packing is assembled and suitable for use in a closed refrigeration system by avoiding the generation of fiberglass debris and preventing its entry into the fluid path. A perforate tube is serially overlain by a heat resistant fabric covering, a fiberglass packing and a circumferentially adjustable and collapsible sleeve which are inserted as a subassembly into the shell of a pressure vessel.

Abstract: An improved exhaustion noise suppressing apparatus for a hermetic compressor directed to minimizing vibration of a refrigerator cycle pipe mechanism caused by a pressure difference of an exhausting gas pressure of the exhausting gas which is discharged from the system to the outside of the compressor by providing a damping member for offsetting a pressure wave form of the refrigerant gas to one side of the interior of the exhaustion noise suppressing unit wherein the compressed refrigerant gas discharged from the cylinder and the exhausting chamber is introduced into the loop pipe through the head cover and the exhaustion noise suppressing unit.

Abstract: A reciprocating piston type compressor provided with pistons reciprocating in respective cylinder bores arranged in a cylinder block for compression of refrigerant gas in response to rotation of a reciprocation-drive-mechanism including a rotating drive shaft, a suction chamber receiving the refrigerant gas before compression and communicating with the cylinder bores via suction ports of a valve assembly, and a discharge chamber receiving the compressed refrigerant gas and communicating with the cylinder bores via discharge ports of the valve assembly, the discharge chamber being divided into a plurality of sub-chambers arranged to be in registration with the plurality of discharge ports of the valve assembly for attenuating pulsative components in the pressure of the compressed refrigerant gas, and the sub-chambers being sectioned by ribs having fluid passageways for providing communication among the sub-chambers.

Abstract: A hermetic compressor suction muffler connection assembly is provided to facilitate the connection of a suction muffler to a cylinder head cover by means of transforming a side portion of the cylinder head cover. The cylinder head cover has an insertion recess formed thereof and a plurality of fixing recesses is formed a certain distance from each side of the insertion recess. A clamp has each end portion thereof fixed insertingly in a corresponding one of the plurality of fixing recesses and an extension extended from the clamp is inserted into the insertion recess. A plurality of fasteners connecting the cylinder head cover to a cylinder. A connecting member extended from a suction muffler is inserted into the insertion recess.

Abstract: A scroll machine has a muffler which is located between a discharge port located in the scroll assembly and a discharge chamber located in a hermetic shell. The muffler has a top cap which is attached to a partition which defines the discharge chamber. A muffler is attached to the top cap and extends towards the scroll assembly through an opening in the partition. The muffler has a generally cylindrical body with two end caps having a spherical surface. The cylindrical body and the end caps define a plurality of perforations which comprise a specific percentage of the total area of these components.

Abstract: The present invention describes an improved cylinder head-suction muffler assembly which minimizes the fabrication and installation process of the same. The improved cylinder head-suction muffler assembly comprises a suction muffler, a capillary tube and a cylinder head. The cylinder head has only one conical bore for receiving a similarly shaped muffler tube of the suction muffler. A capillary tube clip is integrated with the muffler tube for receiving and securing the capillary tube to the cylinder head-suction muffler assembly. The procedure of installing the new cylinder head-suction muffler is simplified to two steps: (1) inserting the suction muffler into the cylinder head and (2) inserting the capillary tube into the suction muffler by securing it to the capillary tube clip. As such, material cost and processing steps are minimized.

Abstract: A muffler for motor compressors for refrigeration appliances consisting of at least three expansion chambers interconnected by passages which are narrower than the chambers; a tube is located in one of said chambers and fastened to the outlet and inlet ports of said chamber. This tube is provided with openings to let the refrigerant gas flow through and for attenuating the resonance frequency of that gas. The diameter of the openings is inversely proportional to the number of openings.