EP2174011B1 - Compresseur comprenant des chambres d'admission de vaporisation de gouttelettes de liquide - Google Patents

Compresseur comprenant des chambres d'admission de vaporisation de gouttelettes de liquide Download PDF

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Publication number
EP2174011B1
EP2174011B1 EP08761346.9A EP08761346A EP2174011B1 EP 2174011 B1 EP2174011 B1 EP 2174011B1 EP 08761346 A EP08761346 A EP 08761346A EP 2174011 B1 EP2174011 B1 EP 2174011B1
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EP
European Patent Office
Prior art keywords
compressor
housing
refrigerant
inflow chamber
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08761346.9A
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German (de)
English (en)
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EP2174011A1 (fr
Inventor
Thomas Varga
Karl-Friedrich Kammhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bitzer Kuehlmaschinenbau GmbH and Co KG
Original Assignee
Bitzer Kuehlmaschinenbau GmbH and Co KG
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Publication date
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Publication of EP2174011A1 publication Critical patent/EP2174011A1/fr
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Publication of EP2174011B1 publication Critical patent/EP2174011B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/806—Pipes for fluids; Fittings therefor

Definitions

  • the invention relates to a compressor for refrigerants comprising an outer casing, a scroll compressor arranged in the outer casing with a first compressor housing fixedly arranged in the outer casing and a second compressor body movable relative to the first compressor body, each of which has a bottom and first or first floor lifting above the respective bottom have second spiral ribs which engage with each other such that for compressing the refrigerant, the second compressor body is movable relative to the first compressor body on an orbital path about a central axis, a drive unit for the second compressor body with an eccentric drive, a drive shaft, and arranged in a motor housing from the sucked refrigerant flow around the drive motor and a bearing unit for the drive shaft, which comprises a first bearing housing connected to the outer housing.
  • Such compressors are known in the art. In these, there is the problem that the sucked refrigerant still temporarily has liquid droplets, in particular liquid droplets of condensed refrigerant, which should be atomized as completely as possible when the refrigerant enters the scroll compressor.
  • the invention is therefore based on the object to improve a compressor of the generic type such that the smallest possible proportion of liquid droplets is present in the refrigerant to be compressed by the scroll compressor.
  • the inflow chamber creates the possibility to atomize liquid droplets already before the flow around the drive motor so as to obtain a substantial dissolution of liquid droplets in the sucked-in refrigerant in the course of the flow through the drive motor.
  • the refrigerant in the inflow chamber undergoes a directional reversal by a flowed-on surface, wherein in particular the refrigerant impinges on this with a flow direction running transversely to the inflowing surface.
  • the liquid droplets can then be atomized if the inflow chamber has a surface which has been heated by the drive motor and has been flown by the refrigerant. Due to the heated surface, the atomization of the liquid droplets is further promoted before the flow around the drive motor, since this also already promotes vaporization of the liquid droplets by the heat.
  • a surface flowed by the refrigerant is realized so that it is formed by a wall of the inflow chamber.
  • the area flowed by the refrigerant is arranged opposite a refrigerant inlet of the inflow chamber.
  • the wall of the inflow chamber is formed at least by a wall portion of the motor housing, so that this wall portion of the motor housing is warmed up without further action by the drive motor.
  • an inlet region of the inflow chamber is arranged offset in the axial direction of the motor housing relative to an outlet region of the inflow chamber, so that the refrigerant is forced to flow in the axial direction of the motor housing.
  • the refrigerant enters the inflow chamber transversely to the axial direction, then flows in the axial direction and finally exits the inflow chamber transversely to the axial direction. It is particularly favorable if the outlet region is arranged on a side of the inlet region opposite the spiral compressor.
  • the inflow chamber is at least partially enclosed by a housing body which is seated on the motor housing. Such a housing body provides that this is designed as a housing body shell.
  • the housing body as a housing body shell, that the inflow chamber is limited by at least one of the housing body shell covered wall portion of the motor housing, so that this wall portion also contributes to the determination of the inflow chamber.
  • the housing body shell is formed to have a wall facing the outer housing.
  • the inflow chamber is limited by a plate-shaped area held on the motor housing.
  • a plate-shaped region may for example be part of a support body for a bearing body of the drive motor.
  • an advantageous solution provides that in the wall of the outer housing, a suction port is arranged.
  • the intake port may be formed in various ways.
  • a solution provides that the intake port comprises a connection piece.
  • Such a connecting piece may preferably be formed so that a suction gas filter is held in the connecting piece, which is exchangeable via the connecting piece and thus in a simple manner allows favorable filtering of the sucked refrigerant.
  • the connecting piece is sealed relative to the housing body by means of a sealing element surrounding a refrigerant inlet in the housing body shell.
  • Such a sealing element between the housing body and the connecting piece could for example be connected to both by an adhesive or grout.
  • the sealing element is held movably on the connecting piece in the direction of the housing body, so that the sealing element is able to compensate for tolerances as well as thermal expansions.
  • the sealing element is acted upon by an elastic force store in the direction of the housing body.
  • Such a filter body is formed for example as a filter mat.
  • the filter body is arranged on a filter carrier, wherein the filter carrier is, for example, a perforated sheet material on which the filter body, for example formed as a filter mat, is stably held.
  • the filter carrier is, for example, a perforated sheet material on which the filter body, for example formed as a filter mat, is stably held.
  • the filter body extends in the axial direction over the entire extent of the inflow chamber.
  • the filter body extends over the entire extent of the inflow chamber in the azimuthal direction.
  • FIG. 1 and 2 A first embodiment of a compressor according to the invention, shown in FIG Fig. 1 and 2 comprises an outer housing, designated as a whole by 10, in which is arranged a generally designated 12 spiral compressor, which can be driven by a drive unit designated as a whole by 14.
  • the scroll compressor 12 in this case comprises a first compressor body 16 and a second compressor body 18, wherein the first compressor body 16 has a same raised above a bottom 20, formed in the form of a Kreisvolvente spiral rib 22 and the second compressor body 18 a through a bottom 24 thereof elevating second, formed in the form of a Kreisvolvente spiral rib 26, wherein the spiral ribs 22, 26 engage each other and sealingly abut each of the bottom surfaces 28 and 30 of the other compressor body 18, 16, so that between the spiral ribs 22, 26 and form the bottom surfaces 28, 30 of the compressor body 16, 18 chambers 32, in which a compression of a refrigerant takes place, which flows over a spiral ribs 22, 26 radially surrounding the outside intake 34 with initial pressure and after the compression in the chambers 28 via an outlet 36 provided in the bottom 20 of the first compressor body 16, compressed to high pressure emerges.
  • the first compressor body 16 is held firmly in the outer housing 10, by means of a separating body 40, which in turn is held on the outer housing 10 within the same, the bottom 20 of the first compressor body 16 overlaps at a distance and tight with a to the Outlet 36 around extending annular flange 42 of the first compressor body 16, which projects beyond the bottom 20 on one of the spiral rib 26 opposite side is connected.
  • a cooling chamber 44 for cooling the bottom 20 of the first compressor body 16 is formed, for example, the subject WO 02/052205 A2 is to which with respect to the cooling of the scroll compressor 12 is fully incorporated by reference.
  • the second compressor body 18 is movable about a central axis 46 on an orbital path relative to the first compressor body 16, wherein the spiral ribs 22 and 26 theoretically abut one another along a contact line and the contact line also during the movement of the second compressor body 18 the orbital path revolves around the central axis 46.
  • the drive of the second compressor body 18 on the orbital path about the central axis 46 is effected by the already mentioned drive unit 14 which comprises an eccentric drive 50, a drive shaft 52 driving the eccentric drive 50, a drive motor 54 and a bearing unit 56 for supporting the drive shaft 52.
  • the eccentric drive 50 is formed by an eccentrically arranged on the drive shaft 52 and thus eccentrically to the central axis 46 driver 62 which engages in a fixedly connected to the bottom 24 of the second compressor body 18 driver receptacle 64, thus the second compressor body 18 on the orbital path to move about the central axis 46.
  • the bearing unit 56 in turn comprises a first bearing body 66, which represents a main bearing body and with a bearing portion 68, the drive shaft 52 supports in a region 70 and which carries the driver 62, wherein the driver 62 is preferably arranged integrally with the region 70.
  • the first bearing body 66 encloses a space 72 in which the eccentric drive 50 is arranged and in which a fixedly connected to the drive shaft 52 balancing mass moves.
  • first bearing body 66 extends laterally of the space 72 in the direction of the bottom 24 of the second compressor body 18 and has around a second compressor body 18 facing opening 76 of the space 72 around extending wings 78, on which the second compressor body 18 with one of the second Spiral rib 26 opposite rear 80 rests and thus supported so that the second compressor body 18 is thereby secured against movement away from the first compressor body 16.
  • the fixation of the first bearing body 66 in the outer housing 10 is carried out with retaining arms 82 which extend radially from the first bearing body 66 to the outer housing 10 and hold in this the first bearing body 66 precise.
  • the first bearing body 66 further has on an opposite side of the holding arms 82 an outer surface 84 on which a within and spaced from a cylindrical portion 86 of the outer housing 10 extending, preferably also cylindrical housing sleeve 88 of a motor housing 90 sits, up to a second bearing body 92 forming a bottom of the motor housing 90, which is arranged at a distance from the first bearing body 66 and forms a bearing portion 94, in which the drive shaft 52 is mounted with an end portion 96 coaxial with the central axis 46.
  • the entire motor housing 90 thus extends within the cylindrical portion 86 of the outer housing 10 and at a distance therefrom.
  • the drive motor 54 is arranged between the first bearing body 66 and the second bearing body 92, which comprises a rotor 100 seated on the drive shaft 52 and a rotor 102 surrounding the stator 102, wherein the stator 102 of the housing sleeve 88 of the motor housing 90th is held stably fixed relative to the outer housing 10, so that a conventional gap 104 between the rotor 100 and the stator 102 is made.
  • stator 102 is provided on its housing sleeve 88 side facing with cooling channels 106 which extend parallel to the central axis 46, for example in the form of outer grooves in the stator 102 over the entire plant side 108, wherein the stator 102 via the plant side 108 at the housing sleeve 88 is supported.
  • a free space 112 is provided between the second bearing body 92 and a bottom part 110 of the outer housing 10, which opens up the possibility that at about the Bodenteif 110 with approximately vertically extending central axis 46 uplifting outer housing 10 forms an oil sump 114, in which on the one hand lubricating oil due to gravity collects and on the other hand lubricating oil for lubricating the compressor according to the invention is kept ready.
  • the lubricating oil passage causes lubrication of the pivot bearing formed between the bearing portion 68 of the first bearing body 66 and the portion 70 of the drive shaft 52.
  • Into the connecting piece 154 is a designated as a whole with 158 designated filter for the sucked refrigerant, which is flowed through by the coming of the intake passage 150 refrigerant.
  • the sucked refrigerant After flowing through the suction gas filter 158, the sucked refrigerant enters an inflow chamber 160, which is arranged between the cylindrical portion 86 of the outer housing 10 and the cylindrical housing sleeve 88 of the motor housing 90.
  • the inflow chamber 160 is formed by a housing body designated as a whole 170, which comprises a housing body shell 172, which has a spaced from the housing sleeve 88 of the motor housing 90 extending side wall 174 and extending between the side wall 174 and the housing sleeve 88 transverse walls 176, the on the one hand preferably integrally formed on the side wall 174 and on the other hand with flange portions 178 abut against the housing sleeve 88 and with these on the housing sleeve 88 are positively or materially fixable.
  • the inflow chamber 160 is enclosed on the one hand by a wall portion 180 of the housing sleeve 88 of the motor housing 90, which extends between the transverse walls 176, further by the transverse walls 176 and also by the parallel to the wall portion 180 extending side wall 174th
  • the sucked refrigerant enters the inflow chamber 160 via a refrigerant inlet 182, which is formed as an opening in the housing body shell 172 and passes through the suction gas filter 158.
  • the sealing of the refrigerant inlet 182 in the housing body 170 is effected by a sealing sleeve designated as a whole by 190, which abuts with a sealing lip 192 around the refrigerant inlet 182 on the side wall 174 of the housing body 170 and sealingly seals due to the sealing lip 192.
  • the sealing sleeve 190 has an outer surface 194, with which the sealing sleeve 190 is slidingly and tightly guided on an inner guide surface 196 of the connecting piece 154, so that the sealing sleeve 190 transversely, preferably perpendicular to the side wall 174 of the housing body 170 in a direction of movement 198 relative to the connecting piece 154 is movable.
  • the sealing sleeve 190 is further acted upon by a compression spring 200 arranged in the connection piece 154, which on the one hand is supported on a flange surface 202 of the connecting piece 154, which is arranged on an opposite side of the sealing sleeve 190 to the inner guide surface 196 and on the other hand one of the flange 202 facing end face 204 of the sealing sleeve 190 acted upon, so that the sealing sleeve 190 always is acted upon in the direction of movement 198 to the housing body 170 and thus the sealing lips 192 pressurized abut the side wall 174 of the housing body 170.
  • the sucked-in refrigerant is fed to an inlet region 210 of the inflow chamber 160 with an inflow direction 211 extending transversely, preferably perpendicular, to the wall surface 180 and flows from Inlet region 210 along a direction 212 extending transversely to the inflow direction 211 to an outlet region 214 of the inflow chamber 160, starting from which the sucked refrigerant via a refrigerant outlet 218, which is preferably formed as an opening in the wall portion 180, in a direction transverse to the direction 212 extending outflow 213th in an interior 220 of the motor housing 90 may occur to cool the drive motor 54.
  • a Strömungsumschelement 222 is provided, which serves the inflowing into the inner space 220 sucked refrigerant in the azimuthal direction to the central axis 46, starting from the refrigerant outlet 218 in azimuthal Directions, to divert.
  • the refrigerant discharged and exiting the filter 158 flows in the inlet region 210 in an inflow direction 211 transversely to the wall portion 180 of the housing sleeve 88, wherein the wall portion 180 serves as a kind of "baffle” and “deflection” and the sucked Refrigerant then deflects in the direction 212, so that the refrigerant then flows in the direction 212 along the wall portion 180 to the outlet portion 214.
  • liquid droplets present in the drawn-in coolant are atomized on the one hand by the action of the wall surface 180 as a "baffle surface", and on the other hand heated so that they evaporate more easily.
  • These liquid drops are preferably liquid drops of refrigerant, which are either carried in the gaseous refrigerant itself or are also entrained in the form of refrigerant entrained in the refrigerant by the refrigerant drawn in, and are undesirable for optimal operation of the scroll compressor 12.
  • the inflow chamber 160 provided according to the invention thereby serves to atomize and vaporize liquid droplets in the sucked-in refrigerant, so that they no longer exist in the refrigerant after flowing through the interior 220 of the motor housing 90 and flowing through the drive motor 54.
  • the refrigerant outlet 218 of the inflow chamber 160 preferably lies in such a way that the refrigerant exiting through the inflow chamber 160 and entering the interior 220 in the region of the spiral compressor 12 and the bearing body 66 facing away from the winding heads 230 of the drive motor 54 in the interior 220 of the motor housing 90th enters, so that the sucked refrigerant can flow in the direction of the center axis 46 through both the gap 104 between the rotor 100 and the stator 102 and through the cooling channels 106 through the stator 102, in the region of the scroll compressor 12 and the bearing body 66 faces arranged end windings 232 exit through openings 240 in the housing sleeve 88 from the motor housing 90 in a lying between the housing sleeve 88 of the motor housing 90 and the outer housing 10 annular space 242, from which then the sucked refrigerant flows in the direction of the scroll compressor 12.
  • the refrigerant passes from the annular space 242 via passages 244 of the first bearing body into an outer space 246 surrounding the spiral compressor 12, which chamber also includes the cooling chamber 44.
  • additional flow guide elements 250 are arranged in the annular space 242.
  • FIGS. 3 to 6 those parts which are identical to those of the first embodiment are given the same reference numerals, so that with respect to the description thereof, the contents of the first embodiment can be fully referenced.
  • the inflow chamber 160 In contrast to the first embodiment is in the example, as in the FIGS. 3 to 6 shown, the inflow chamber 160 'formed by a housing body 250 having only lateral transverse walls 252, 254, which rise above a plate-shaped portion 256 of the support body 98 and extending in the direction of the scroll compressor 12, up to an upper transverse wall 258, the an area between the two lateral transverse walls 252, 254 covered.
  • the lateral transverse walls 252, 254 and the upper transverse wall 258 are positively or materially fixed to the housing sleeve 88 of the motor housing 90 and extending from the housing sleeve 88 to the cylindrical portion 86 of the outer housing 10, which with their end portions 262, 264 and 268 resiliently abut against an inner side 270 of the cylindrical portion 86 of the outer housing 10 and thereby substantially form a sufficiently tight seal with the inner side 270 of the cylindrical portion 86.
  • the inflow chamber 160 on the one hand limited by lying between the lateral transverse walls 252 and 254 and the upper transverse wall 258 and the plate-shaped portion 256 wall portion 180' of Housing sleeve 88 of the motor housing 90 and a wall portion 280 of the cylindrical portion 86 of the outer housing 10, which is also between the end portions 262 and 264 and between the end portion 268 and the plate-shaped portion 256.
  • the spud 154 seats in the cylindrical portion 86 of the outer housing 10 and terminates in the inlet portion 210 of the inflow chamber 160 'which extends between the inlet portion 210' and the outlet portion 214 '.
  • the incoming sucked refrigerant wall section 180 ' acts as a baffle and deflects it in the direction 212, so that in this example as well, the drawn refrigerant flows along the wall section 180' of the housing sleeve 88 of the motor housing 90, as well as through the drive motor 54 heated in the first embodiment and thus acts in the same manner as in the first embodiment.
  • a filter support 282 extending, for example, from the plate-shaped region 256 to the upper transverse wall 258 provided, which is made of a perforated sheet, for example, provided with a perforations sheet, on which a layer of a filter body forming filter material 284 is located.
  • connecting piece 154 can be variably arranged in the cylindrical section 86 of the outer housing 10, provided that it has a sufficiently large distance from the outlet area 214 'in the direction of the center axis 46, so that the drawn-in refrigerant has a sufficiently long distance along the wall section 180' of the housing sleeve 88 the motor housing 90 flows in order to achieve the effects described also for the embodiment according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Compressor (AREA)

Claims (12)

  1. Compresseur destiné à un agent de refroidissement, comprenant un boîtier extérieur (10), un compresseur à spirale (12), disposé dans le boîtier extérieur (10) comportant un premier corps de compresseur (16) disposé fixement dans le boîtier extérieur (10), et un second corps de compresseur (18) pouvant se déplacer par rapport au premier corps de compresseur (16), lesquels corps de compresseur présentent un fond (20, 24) et des premières respectivement des deuxièmes nervures spiralées (22, 26) qui se soulèvent au-dessus du fond respectif (20, 24) et viennent en prise l'une dans l'autre de sorte que, pour permettre la compression de l'agent de refroidissement, le second corps de compresseur (18) peut se déplacer par rapport au premier corps de compresseur (16) sur une trajectoire orbitale autour d'un axe médian (46), une unité d'entraînement (14) destinée au second corps de compresseur (18) comprenant un entraînement à excentrique (50), un arbre d'entraînement (52), un moteur d'entraînement (54) disposé dans un carter moteur (90) et parcouru sur ses contours par l'agent de refroidissement aspiré, ainsi qu'une unité de palier (56) destinée à l'arbre d'entraînement (52) et comprenant un premier corps de palier (66) relié au boîtier extérieur, l'agent de refroidissement traversant, avant de s'écouler autour du moteur d'entraînement (54), une chambre d'admission (160) disposée à l'intérieur du boîtier extérieur (10) ainsi qu'entre le boîtier extérieur (10) et un carter moteur (90) de l'unité d'entraînement (14), compresseur dans lequel le sens d'écoulement de l'agent de refroidissement est dévié par une face exposée à l'afflux (180) afin de vaporiser les gouttelettes de liquide dans la chambre d'admission (160) et la face (180) exposée à l'afflux d'agent de refroidissement est formée par une paroi (180) de la chambre d'admission (160) formée par au moins un tronçon de paroi (180) du carter moteur (90), caractérisé en ce que la chambre d'admission (160) est entourée, du moins en partie, par un corps de carter (170, 250), situé contre le carter moteur (90), lequel corps de carter est configuré en tant que coque de corps de carter, recouvrant le tronçon de paroi (180), comportant une paroi (172) dirigée vers le boîtier extérieur (10).
  2. Compresseur selon la revendication 1, caractérisé en ce que la chambre d'admission (160) présente une face (180) chauffée par le moteur d'entraînement (54) et exposée à l'afflux d'agent de refroidissement.
  3. Compresseur selon la revendication 2, caractérisé en ce que la face (180) exposée à l'afflux d'agent de refroidissement est disposée en face d'une admission (182) d'agent de refroidissement de la chambre d'admission (160).
  4. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une zone d'admission (210) de la chambre d'admission (160) est disposée décalée dans le sens axial du carter moteur (90) par rapport à une zone d'évacuation (214) de la chambre d'admission (160).
  5. Compresseur selon la revendication 4, caractérisé en ce que la zone d'évacuation (214) est disposée sur un côté de la zone d'admission (210) opposé au compresseur à spirale (12).
  6. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un raccord d'aspiration (152) est disposé dans la paroi du boîtier extérieur (10) et comporte un manchon de raccordement (154), et en ce que, en particulier, un filtre (158) est maintenu dans le manchon de raccordement (154).
  7. Compresseur selon la revendication 6, caractérisé en ce que le manchon de raccordement (154) est étanchéifié par rapport au corps de carter (170) au moyen d'un élément d'étanchéité (190) entourant une admission d'agent de refroidissement (182) dans le corps de carter.
  8. Compresseur selon la revendication 7, caractérisé en ce que l'élément d'étanchéité (190) se plaque contre le corps de carter (170) sous l'effet d'une force.
  9. Compresseur selon la revendication 7 ou la revendication 8, caractérisé en ce que l'élément d'étanchéité (190) est maintenu de manière mobile sur le manchon de raccordement (154) en direction du corps de carter (170).
  10. Compresseur selon l'une quelconque des revendications 7 à 9, caractérisé en ce que l'élément d'étanchéité (190) est sollicité par un accumulateur de force élastique (200) en direction du corps de carter (170).
  11. Compresseur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un filtre (284) destiné à l'agent de refroidissement est disposé dans la chambre d'admission (160').
  12. Compresseur selon la revendication 11, caractérisé en ce que le filtre (284) est disposé sur un porte-filtre (282).
EP08761346.9A 2007-07-03 2008-06-24 Compresseur comprenant des chambres d'admission de vaporisation de gouttelettes de liquide Active EP2174011B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007032157A DE102007032157A1 (de) 2007-07-03 2007-07-03 Kompressor
PCT/EP2008/058043 WO2009003884A1 (fr) 2007-07-03 2008-06-24 Compresseur comprenant des chambres d'admission de vaporisation de gouttelettes de liquide

Publications (2)

Publication Number Publication Date
EP2174011A1 EP2174011A1 (fr) 2010-04-14
EP2174011B1 true EP2174011B1 (fr) 2018-02-21

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EP (1) EP2174011B1 (fr)
DE (1) DE102007032157A1 (fr)
WO (1) WO2009003884A1 (fr)

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Publication number Priority date Publication date Assignee Title
GB201005273D0 (en) * 2010-03-30 2010-05-12 Edwards Ltd Scroll compressor
US9039384B2 (en) * 2012-03-23 2015-05-26 Bitzer Kuehlmaschinenbau Gmbh Suction duct with adjustable diametric fit
CN103511271B (zh) * 2012-06-18 2017-02-08 乐金电子(天津)电器有限公司 涡旋压缩机密封结构及其组装方法
IL260441A (en) 2018-07-05 2019-01-31 The State Of Israel Israel Nat Police Laser interceptor for soft flying devices
CN114857015A (zh) * 2022-05-19 2022-08-05 广东美芝制冷设备有限公司 旋转式压缩机及制冷循环装置

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Publication number Priority date Publication date Assignee Title
JP2001207980A (ja) * 2000-01-25 2001-08-03 Mitsubishi Heavy Ind Ltd スクロール型圧縮機

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IT1181056B (it) * 1984-01-24 1987-09-23 Necchi Spa Motocompressore ermetico rotativo ad asse verticale
GB2202905B (en) * 1987-03-12 1991-07-24 Matsushita Electric Ind Co Ltd Scroll compressor
JPS6325395A (ja) * 1987-05-21 1988-02-02 Matsushita Refrig Co ロ−タリ−型冷媒圧縮機の組立方法
JP2820463B2 (ja) * 1989-11-02 1998-11-05 松下電器産業株式会社 スクロール圧縮機の始動方法
US5240391A (en) * 1992-05-21 1993-08-31 Carrier Corporation Compressor suction inlet duct
DE10065821A1 (de) 2000-12-22 2002-07-11 Bitzer Kuehlmaschinenbau Gmbh Kompressor
DE10248926B4 (de) * 2002-10-15 2004-11-11 Bitzer Kühlmaschinenbau Gmbh Kompressor
US7311501B2 (en) * 2003-02-27 2007-12-25 American Standard International Inc. Scroll compressor with bifurcated flow pattern

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Publication number Priority date Publication date Assignee Title
JP2001207980A (ja) * 2000-01-25 2001-08-03 Mitsubishi Heavy Ind Ltd スクロール型圧縮機

Also Published As

Publication number Publication date
WO2009003884A1 (fr) 2009-01-08
EP2174011A1 (fr) 2010-04-14
DE102007032157A1 (de) 2009-01-08

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