EP2174012B1 - Kühlkompressor mit spiralen von veränderlicher geschwindigkeit - Google Patents

Kühlkompressor mit spiralen von veränderlicher geschwindigkeit Download PDF

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Publication number
EP2174012B1
EP2174012B1 EP08827911A EP08827911A EP2174012B1 EP 2174012 B1 EP2174012 B1 EP 2174012B1 EP 08827911 A EP08827911 A EP 08827911A EP 08827911 A EP08827911 A EP 08827911A EP 2174012 B1 EP2174012 B1 EP 2174012B1
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EP
European Patent Office
Prior art keywords
volute
cartridge
oil
orifice
obturator
Prior art date
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Active
Application number
EP08827911A
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English (en)
French (fr)
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EP2174012A2 (de
Inventor
Pierre Ginies
Yves Rosson
Jean-Paul Bodart
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Danfoss Commercial Compressors SA
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Danfoss Commercial Compressors SA
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Publication of EP2174012A2 publication Critical patent/EP2174012A2/de
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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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/025—Lubrication; Lubricant separation using a lubricant pump

Definitions

  • the present invention relates to a variable speed scroll compressor.
  • the document FR 2,885,966 discloses a scroll compressor, also known by the term Scroll compressor, comprising a sealed enclosure defined by a shell, and containing a suction volume and a compression volume disposed respectively on either side of a body contained in the enclosure.
  • the shell defining the sealed enclosure comprises a refrigerant gas inlet.
  • An electric motor is arranged in the sealed enclosure, with a stator located on the outer side, mounted fixed relative to the ferrule, and a rotor disposed in central position, integral with a drive shaft, crankshaft-shaped, of which a first end drives an oil pump supplying, from oil contained in a housing located in the lower part of the enclosure, a lubrication duct formed in the central part of the shaft.
  • the lubrication duct has lubrication holes at different guide bearings of the drive shaft.
  • the compression volume contains a compression stage comprising a fixed volute equipped with a spiral engaged in a spiral of a moving volute, the two spirals delimiting at least one compression chamber of variable volume.
  • the second end of the drive shaft is equipped with an eccentric driving the moving volute in an orbital motion, to achieve the compression of the refrigerant gas sucked.
  • refrigerant gas arrives from the outside and enters the sealed enclosure. Part of the gas is sucked directly towards the compression volume, while the other part of the gas passes through the engine before flowing towards the compression stage. All the incoming gas is directly to the compression stage, or after passing through the engine, is sucked by the compression stage, penetrating into at least one compression chamber defined by the two spirals, the inlet is forming at the periphery of the compression stage, and the gas being conveyed towards the center of the spirals as compression occurs by decreasing the volume of the compression chambers, resulting from the movement of the mobile scroll relative to the fixed scroll. The gas compressed leaves in central part in the direction of the compressed gas recovery chamber.
  • the refrigerant gas entering the compressor can be charged with oil, this oil can come for example leaks bearings, licking the surface of the oil sump by gas .
  • oil content in the refrigerant gas changes according to the rotational speed of the rotor of the electric motor.
  • the amount of circulating oil with the refrigerant gas is low, which can degrade the performance of the compressor and reduces the lubrication of the various parts of the compressor.
  • variable speed scroll coiled compressor comprising a drive shaft having an oil supply conduit extending the entire length thereof, the oil supply conduit being fed with oil from oil contained in an oil sump by an oil pump disposed at a first end of the drive shaft.
  • the drive shaft comprises a transverse orifice, one end of which opens into the feed duct and the other end of which opens into the wall of the shaft, in an area thereof located in the volume of the shaft. suction.
  • the compressor described in the document US 6,287,099 also comprises a shutter arranged to close the transverse orifice when the speed of the compressor is less than a predetermined value and to move and release, under the effect of a centrifugal force, the transverse orifice when the speed of the compressor exceeds the predetermined value.
  • the shutter closes the transverse orifice.
  • all of the oil entering the feed conduit is forced toward the second end of the drive shaft and injected into the compression volume.
  • the shutter releases the transverse orifice.
  • a portion of the oil having entered the feed pipe is discharged through the transverse orifice and is therefore not injected into the compression volume.
  • the compressor described in the document US 6,287,099 allows to limit the injection of oil into the compression volume when the speed of the compressor exceeds the predetermined value.
  • the transverse orifice no longer allows to divert a sufficient amount of oil to the oil sump. This can result in a large amount of oil in the compression volume and thus an excessive oil level in the refrigerant gas leaving the compressor.
  • the document JP 09 264275 discloses a scroll compressor with all the features of the preamble of claim 1.
  • the shutter is displaced depending on the pressure of the oil. Therefore, the relationship between the shutter activation of the oil injection circuit in the compression volume and the rotational speed of the compressor is only an indirect relationship.
  • the present invention aims to remedy these drawbacks, and its purpose is to provide a scroll compressor with variable speed that is simple in structure, while allowing a precise control of the injection of oil into the compression volume. .
  • the presence of the shutter in the oil injection circuit allows precise control of the injection of oil into the compression volume. Indeed, as long as the speed of the compressor is low and therefore less than the predetermined value, the shutter allows the injection of oil into the compression volume while it prevents this injection of oil when the speed of the compressor exceeds the predetermined value.
  • the compressor according to the invention makes it possible to increase the quantity of oil present in the compression volume and therefore the oil content in the refrigerant gas only when the speed of the compressor is low and below the predetermined value.
  • the compressor according to the invention consequently makes it possible to improve the low speed performance of the variable speed compressor without impairing the efficiency thereof at high speed.
  • the oil injection circuit comprises return means arranged on the one hand to maintain the shutter in its first position when the speed of the compressor is less than the predetermined value, and on the other hand to allow a displacement shutter in its second position when the compressor speed exceeds the predetermined value.
  • the second end of the drive shaft comprises a housing in which the shutter is received
  • the injection means formed in the second volute comprise an orifice opening at the level of the second end of the drive shaft
  • the shutter is arranged on the one hand to close the orifice formed in the second volute when it is in its second position, and on the other hand to release the orifice formed in the second volute when in its first position.
  • the shutter comprises a through orifice arranged on the one hand to be located opposite the orifice formed in the second volute when the shutter is in its first position, and on the other hand, to be offset from the orifice in the second volute when the shutter is in its second position.
  • the return means comprise a spring disposed in the housing formed in the drive shaft, the two ends of the spring respectively bearing against the shutter and the drive shaft.
  • the second volute bears against the body
  • the compressor also comprises a cartridge disposed between the second volute and the body and in which the shutter is received, the cartridge being connected to the body and to the second volute through first and second rotational links, the distance between the axes of the two rotating links being equal to the orbit radius of the second volute, and the cartridge being rotated around the one of the links in rotation during the relative movement between the second volute and the body.
  • the cartridge is cylindrical and is rotatably mounted in a housing of complementary shape formed in one of the elements of the body and the second volute, this mounting of the cartridge in the housing forming a rotational connection merged with the axis of the cartridge.
  • the cartridge comprises an orifice in which is received a pin mounted in the other element of the body and the second volute, this pin forming a rotational connection offset from the axis of the cartridge.
  • the oil injection circuit may according to one embodiment of the invention comprise an oil supply duct disposed inside the sealed chamber and opening on the one hand into the casing. oil and secondly in the housing receiving the cartridge.
  • the return means comprise a spring disposed in the cartridge, the two ends of the spring respectively bearing against the shutter and the cartridge.
  • the oil injection means comprise a first injection channel formed in the second volute, one end of which opens out at the second end of the supply duct and whose Another end opens into the housing receiving the cartridge, an orifice formed in the second volute, one end of which opens into the housing receiving the cartridge and the other end of which opens into a second injection channel formed in the second volute.
  • the second injection channel opening into the compression volume, and the shutter is arranged on the one hand to close the orifice formed in the second volute when it is in its second position, and on the other hand to release the orifice in the second volute when it is in its first position.
  • the shutter comprises a through orifice arranged on the one hand to put in communication the first injection channel and the orifice formed in the second volute when the shutter is in its first position, and secondly for be offset from the orifice in the second volute when the shutter is in its second position.
  • the oil injection means comprise a first injection channel formed in the second volute, one of whose ends opens at the second end of the supply duct and whose the other end opens into the housing receiving the cartridge, a second injection channel formed in the second volute, one end of which opens into the housing receiving the cartridge and the other end of which opens into the compression volume, and the cartridge comprises a through orifice arranged on the one hand to put in communication the first and second injection channels formed in the second volute when the shutter is in its first position, and on the other hand to be closed by the shutter when he is in his second position.
  • the housing receiving the cartridge is formed in the body and the pin is mounted in the second volute, and the end of the first injection channel opening into the housing receiving the cartridge forms an orifice in which is mounted the pin, the pin comprising a through bore arranged to communicate the first injection channel with the through hole in the cartridge when the shutter is in its first position.
  • the oil injection means are arranged to feed the oil interface between the body and the second volute when the shutter is in the first position.
  • the first and second volutes delimit at least one variable volume compression chamber, and the oil injection means are arranged for injecting oil into an inlet portion of the compression chamber when the shutter is in the first position.
  • the figure 1 discloses a variable speed scroll compressor operating in a vertical position.
  • the compressor according to the invention could occupy an inclined position, or a horizontal position, without its structure being significantly modified.
  • the compressor shown in figure 1 comprises a sealed enclosure delimited by a ferrule 2, the upper and lower ends of which are respectively closed by a cover 3 and a base 4.
  • the assembly of this enclosure can be achieved in particular by means of welding beads.
  • the intermediate portion of the compressor is occupied by a body 5 which delimits two volumes, a suction volume located below the body 5, and a compression volume disposed above it.
  • the ferrule 2 comprises a refrigerant gas inlet 6 opening into the suction volume to achieve the supply of gas to the compressor.
  • the body 5 serves for mounting a compression stage 7 of the refrigerant gas.
  • This compression stage 7 comprises a fixed volute 8 equipped with a fixed spiral 9 facing downwards, and a mobile volute 10 bearing against the body 5 and equipped with a spiral 11 facing upwards.
  • the two spirals 9 and 11 of the two volutes interpenetrate to provide compression chambers 12 of variable volume.
  • the admission of the gas into the compression stage is made from the outside, the compression chambers 12 having a variable volume which decreases from the outside towards the inside, during the movement of the mobile volute 10 with respect to the fixed scroll 8, the compressed gas escaping at the center of the scrolls through an opening 13 formed in the fixed scroll 8 towards a chamber 14 at high pressure from which it is discharged through a connector 15.
  • the compressor comprises an electric motor disposed in the suction volume.
  • the speed variation of the electric motor can be achieved by means of a variable frequency electric generator.
  • the electric motor comprises a stator 16 at the center of which is disposed a rotor 17.
  • the rotor 17 is integral with a drive shaft 20 whose upper end is offset in the manner of a crankshaft. This upper part is engaged in a portion 21 in the form of a sleeve, which comprises the mobile volute 10. During its driving in rotation by the motor, the drive shaft 20 drives the moving volute 10 in an orbital motion.
  • the lower end of the drive shaft 20 drives an oil pump 22 feeding, from oil contained in a housing 23 delimited by the base 4, an oil supply conduit 24 formed in the central portion of the drive shaft.
  • the supply duct 24 is off-center and extends over the entire length of the drive shaft 20.
  • the upper end of the drive shaft 20 comprises a housing 25 in which is slidably mounted a shutter 26, as shown in FIG. figure 2 . As shown in particular on the figure 1 , the shutter 26 is disposed in the compression volume.
  • the shutter 26 is constituted by a movable shutter slide, under the effect of the centrifugal force due to the rotation of the drive shaft 20, between a first position (shown in FIGS. figures 1 and 2 ) allowing an injection of oil into the compression volume and a second position (shown in FIG. figure 3 ) preventing the injection of oil into the compression volume.
  • the oil injection circuit comprises return means arranged on the one hand to maintain the shutter 26 in its first position when the speed of the compressor is less than a predetermined value, and on the other hand to allow a displacement of the shutter 26 in its second position when the speed of the compressor exceeds the predetermined value.
  • the return means consist of a compression spring 27 disposed in the housing 25, the two ends of the spring 27 respectively bearing against the shutter 26 and the drive shaft 20.
  • the movable scroll 10 comprises oil injection means arranged on the one hand for communicating the supply duct 24 with the compression volume and on the other hand for supplying the interface with the oil to the body 5 and the movable volute 10 when the shutter 26 is in its first position.
  • the injection means formed in the mobile scroll 10 comprise a rectilinear injection channel 28 extending into the base of the mobile scroll, a first orifice 29 opening respectively into the injection channel 28 and at the second end. of the drive shaft 20, and second and third orifices 30 opening respectively into the injection channel 28 and into the inlet portion of the compression chambers 12.
  • the injection means formed in the mobile scroll 10 comprise also fourth and fifth orifices 60 opening respectively into the injection channel 28 and into the interface between the body 5 and the mobile volute 10.
  • the shutter 26 comprises a through orifice 31 arranged on the one hand to be located opposite the first orifice 29 formed in the mobile volute 10 when the shutter 26 is in its first position, and secondly to be shifted from the first orifice 29 when the shutter 26 is in its second position.
  • the through orifice 31 makes it possible to put the supply duct 24 into communication with the injection channel 28 formed in the mobile volute 10 when the shutter 26 is in its first position.
  • the shutter 26 closes the first orifice 29 formed in the moving volute 10 when it is in its second position.
  • the compressor comprises a second compression spring 32 respectively bearing against the drive shaft 20 and the lower face of the shutter 26, this second spring 32 being arranged to keep the shutter 26 pressed against the moving volute 10 during its displacements so as to seal the orifice 29 when the shutter 26 is in its second position.
  • the rotor 17 rotates the drive shaft 20 and the oil pump 22 feeds, from oil contained in the housing 23, the lubrication pipe 24. Due to the rotation of the drive shaft 20, the oil pumped by the pump 22 will flow into the lubrication line 24 in the direction of the shutter 26.
  • the compression spring 27 keeps the shutter 26 in its first position.
  • the through-orifice 31 formed in the shutter is disposed facing the orifice 29 formed in the moving volute 10 and thus allows on the one hand an injection of oil into the compression volume via injection channel 28 and orifices 30, and secondly a supply of oil to the interface between the body 5 and the mobile scroll through the injection channel 28 and orifices 60.
  • the shutter 26 compresses, under the effect of its weight and centrifugal force, the compression spring 27 and moves to its second position.
  • the orifice 29 is closed off by the shutter 26 and thus the oil having penetrated into the supply duct 24 can no longer flow into the compression volume.
  • the compressor according to the invention makes it possible to increase the quantity of oil present in the compression volume and therefore the oil content in the refrigerant gas only when the speed of the compressor is low and less than the predetermined value.
  • the present invention improves the low speed performance of the variable speed compressor without impairing its efficiency at high speed.
  • the oil having entered the feed pipe 24 is discharged on the one hand at the upper bearing 33 and serves for its lubrication, and d secondly via a radial orifice 34 formed in the drive shaft 20, one end of which opens into the supply duct 24 and the other end of which opens into the wall of the shaft 20, at the rotor 17.
  • the compressor comprises a cylindrical cartridge 35 mounted free to rotate about its axis A in a housing 36 of complementary shape formed in the mobile volute 10 and opening in the face thereof facing the body 5.
  • the cartridge 35 is rotated about its axis A, during the relative orbital movement between the mobile volute 10 and the body 5, via a pin 37 integral with the body 5 and received in a hole 38 of complementary shape formed in the cartridge 35. It should be noted that the cartridge 35 is mounted free to rotate about the axis B of the pin 37.
  • the cartridge 35 is rotated about its axis A during the relative movement between the body 5 and the moving volute 10 because the distance between the axis A of the cartridge 35 and the axis B of the pin 37 is equal. to the orbit radius of the moving volute 10.
  • the cartridge 35 comprises a housing 39 in which the shutter 26 is slidably mounted.
  • the shutter 26 is constituted by a movable shutter slide, under the effect of the centrifugal force due to the rotation of the cartridge 35, between a first position (represented on figures 4 and 5 ) allowing an injection of oil into the compression volume and a second position (shown in FIG. figure 6 ) preventing the injection of oil into the compression volume.
  • the return means arranged are constituted by a compression spring 40 disposed in the housing 39 receiving the shutter 26, the two ends of the spring 40 respectively bearing against the shutter 26 and the cartridge 35.
  • the shutter 26 is arranged on the one hand to close the orifice 42 formed in the moving volute 10 when it is in its second position, and on the other hand to release it when it is in its first position.
  • the shutter 26 comprises a through orifice 45 arranged on the one hand to put in communication the first injection channel 41 and the orifice 42 formed in the mobile volute 10 when the shutter 26 is in its first position, and of on the other hand, to be offset from the orifice 42 formed in the moving volute 10 when the shutter 26 is in its second position.
  • the through orifice 45 makes it possible to put the supply duct 24 in communication with the second injection channel 43 formed in the mobile volute 10 when the shutter 26 is in its first position.
  • the compression spring 40 keeps the shutter 26 in its first position.
  • the through orifice 45 formed in the shutter 26 is arranged facing the orifice 42 formed in the moving volute 10 and thus allows on the one hand an injection of oil into the compression volume by the intermediate of the injection channels 41, 43 and orifices 44, and secondly an oil supply of the interface between the body 5 and the moving volute 10 via the injection channels 41, 43 and the orifice 61.
  • the shutter 26 compresses, under the effect of its mass and the centrifugal force, the compression spring 40 and moves in its second position.
  • the orifice 42 is closed off by the shutter 26 and thus that the oil having penetrated into the feed duct 24 can no longer flow into the compression volume.
  • FIGS 7 to 8 represent a third embodiment of the invention which differs from the second embodiment essentially in that the cartridge 35 is mounted free to rotate about its axis A in a housing 46 of complementary shape formed in the body 5 and opening into the face of it facing the mobile volute 10.
  • the cartridge 35 is rotated about its axis A, during the relative orbital movement between the mobile volute 10 and the body 5, via a pin 47 integral with the movable scroll 10 and received in a hole 38 of complementary shape in the cartridge 35.
  • the cartridge 35 comprises a through orifice 51 arranged on the one hand to put in communication the first and second injection channels 48, 50 formed in the mobile volute 10 via the bore 49 when the shutter 26 is in its first position, and secondly to be closed by the shutter when in its second position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Spiral-Kälteverdichter mit variabler Geschwindigkeit, der umfasst:
    - einen abgedichteten Behälter, der ein Ansaugvolumen und ein Verdichtungsvolumen begrenzt, die jeweils auf der einen und der anderen Seite eines in dem Raum enthaltenen Körpers (5) angeordnet sind, wobei das Verdichtungsvolumen eine erste Spirale (8) und eine zweite Spirale (10) enthält, wobei die erste und zweite Spirale eine relative orbitale Bewegung beschreiben,
    - einen Öleinspritzkreis, der ausgebildet ist, um Öl in das Verdichtungsvolumen einzuspritzen,
    - eine Antriebswelle (20), die eine Ölversorgungsleitung (24) umfasst, die sich über die gesamte Länge derselben erstreckt, die ab dem in der Ölwanne (23) enthaltenen Öl durch eine Ölpumpe (22) mit Öl versorgt wird, die an einem ersten Ende der Welle angeordnet ist, wobei das zweite Ende der Antriebswelle (20) mit einer Antriebsvorrichtung (21) gemäß einer orbitalen Bewegung der zweiten Spirale (10), die im Verdichtungsvolumen enthalten ist, ausgestattet ist,
    wobei die zweite Spirale (10) Öleinspritzmittel umfasst, die ausgebildet sind, um die Versorgungsleitung (24) mit dem Verdichtungsvolumen in Kommunikation zu bringen,
    wobei der Öleinspritzkreis einen zwischen einer ersten Freigabestellung der Öleinspritzmittel, die ein Einspritzen von Öl in das Verdichtungsvolumen erlaubt, und einer zweiten Verschlussstellung der Öleinspritzmittel, die das Einspritzen von Öl in das Verdichtungsvolumen verhindert, bewegbaren Verschluss (26) umfasst,
    dadurch gekennzeichnet, dass der Verschluss (26) zwischen der ersten und der zweiten Stellung unter der Wirkung einer Zentrifugalkraft bewegbar ist und der Verschluss (26) ausgebildet ist, um sich in seine zweite Stellung zu verschieben, wenn die Geschwindigkeit des Verdichters einen vorbestimmten Wert überschreitet.
  2. Verdichter nach Anspruch 1, dadurch gekennzeichnet, dass der Öleinspritzkreis Rückholmittel (27, 40) umfasst, die einerseits ausgebildet sind, um den Verschluss (26) in seiner ersten Stellung zu halten, wenn die Geschwindigkeit des Verdichters unter dem vorbestimmten Wert ist, und andererseits, um eine Verschiebung des Verschlusses (26) in seine zweite Stellung zu erlauben, wenn die Geschwindigkeit des Verdichters den vorbestimmten Wert überschreitet.
  3. Verdichter nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass das zweite Ende der Antriebswelle (24) eine Aufnahme (25) umfasst, in der der Verschluss (26) aufgenommen ist, dass die Öleinspritzmittel eine Öffnung (29) umfassen, die in die zweite Spirale (10) eingearbeitet ist und auf Ebene des zweiten Endes der Antriebswelle (24) münden, und dass der Verschluss (26) einerseits ausgebildet ist, um die in die zweite Spirale (10) eingearbeitete Öffnung (29) zu verschließen, wenn er sich in seiner zweiten Stellung befindet, und andererseits, um die in die zweite Spirale (10) eingearbeitete Öffnung (29) freizugeben, wenn er sich in seiner ersten Stellung befindet.
  4. Verdichter nach Anspruch 3, dadurch gekennzeichnet, dass der Verschluss (26) eine durchquerende Öffnung (31) umfasst, die einerseits ausgebildet ist, um sich gegenüber der in die zweite Spirale (10) eingearbeiteten Öffnung (29) zu befinden, wenn der Verschluss in seiner ersten Stellung ist, und andererseits, um von der in die zweite Spirale (10) eingearbeiteten Öffnung (29) versetzt zu sein, wenn der Verschluss in seiner zweiten Stellung ist.
  5. Verdichter nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, dass die Rückholmittel eine Feder (27) umfassen, die in der in die Antriebswelle eingearbeiteten Aufnahme angeordnet ist, wobei sich die zwei Enden der Feder (27) jeweils auf dem Verschluss (26) und der Antriebswelle (24) abstützen.
  6. Verdichter nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass sich die zweite Spirale (10) auf dem Körper (5) abstützt, dass der Verdichter eine Patrone (35) umfasst, die zwischen der zweiten Spirale (10) und dem Körper (5) angeordnet ist und in der der Verschluss (26) aufgenommen wird, dass die Patrone (35) mit dem Körper (5) und mit der zweiten Spirale (10) über eine erste und eine zweite Rotationsverbindung verbunden ist, wobei der Abstand zwischen den Achsen der zwei Rotationsverbindungen dem Orbitalradius der zweiten Spirale (10) entspricht, und dass die Patrone (35) während der relativen Bewegung zwischen der zweiten Spirale (10) und dem Körper (5) um eine der Rotationsverbindungen rotierend angetrieben wird.
  7. Verdichter nach Anspruch 6, dadurch gekennzeichnet, dass die Patrone (35) zylindrisch ist und frei drehend in einer komplementär geformten Aufnahme (36, 46) montiert ist, die in einem der Elemente, wozu der Körper (5) und die zweite Spirale (10) gehören, eingearbeitet ist, wobei diese Montage der Patrone (35) in der Aufnahme (36, 46) eine Rotationsverbindung bildet, die mit der Achse (A) der Patrone übereinstimmt, und dass die Patrone (35) eine Öffnung (38) umfasst, die einen Stift (37, 47) aufnimmt, der im anderen Element, wozu der Körper (5) und die zweite Spirale (10) gehören, montiert ist, wobei dieser Stift eine im Verhältnis zur Achse (A) der Patrone versetzte Rotationsverbindung bildet.
  8. Verdichter nach einem der Ansprüche 6 und 7, dadurch gekennzeichnet, dass die Rückholmittel eine Feder (40) umfassen, die in der Patrone (35) angeordnet ist, wobei sich die zwei Enden der Feder jeweils auf dem Verschluss (26) und der Patrone abstützen.
  9. Verdichter nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, dass die Öleinspritzmittel einen ersten Einspritzkanal (41) umfassen, der in die zweite Spirale (10) eingearbeitet ist, von dem ein Ende auf Ebene des zweiten Endes der Versorgungsleitung (24) mündet und dessen anderes Ende in die die Patrone (35) aufnehmende Aufnahme (36) mündet, eine Öffnung (42), die in die zweite Spirale (10) eingearbeitet ist, von der ein Ende in die die Patrone aufnehmende Aufnahme (36) mündet, und deren anderes Ende in einen zweiten Einspritzkanal (43) mündet, der in die zweite Spirale (10) eingearbeitet ist, wobei der zweite Einspritzkanal (43) in das Verdichtungsvolumen mündet, und dass der Verschluss (26) einerseits ausgebildet ist, um die in die zweite Spirale (10) eingearbeitete Öffnung (42) zu verschließen, wenn er sich in seiner zweiten Stellung befindet, und andererseits, um die in die zweite Spirale (10) eingearbeitete Öffnung (42) freizugeben, wenn er sich in seiner ersten Stellung befindet.
  10. Verdichter nach Anspruch 9, dadurch gekennzeichnet, dass der Verschluss (26) eine durchquerende Öffnung (45) umfasst, die einerseits ausgebildet ist, um den ersten Einspritzkanal (41) und die Öffnung (42), die in die zweite Spirale (10) eingearbeitet sind, in Kommunikation zu bringen, wenn der Verschluss in seiner ersten Stellung ist, und andererseits, um von der in die zweite Spirale (10) eingearbeiteten Öffnung (42) versetzt zu sein, wenn der Verschluss in seiner zweiten Stellung ist.
  11. Verdichter nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, dass die Öleinspritzmittel einen ersten Einspritzkanal (48) umfassen, der in die zweite Spirale (10) eingearbeitet ist, von dem ein Ende auf Ebene des zweiten Endes der Versorgungsleitung (24) mündet und dessen anderes Ende in die die Patrone (35) aufnehmende Aufnahme (46) mündet, einen zweiten Einspritzkanal (50), der in die zweite Spirale (10) eingearbeitet ist, von dem ein Ende in die die Patrone aufnehmende Aufnahme (46) mündet und dessen anderes Ende in das Verdichtungsvolumen mündet, und dass die Patrone (35) eine durchquerende Öffnung (51) umfasst, die einerseits ausgebildet ist, um die in die zweite Spirale (10) eingearbeiteten ersten und zweiten Einspritzkanäle (48, 50) in Kommunikation zu bringen, wenn sich der Verschluss (26) in seiner ersten Stellung befindet, und andererseits, um vom Verschluss verschlossen zu sein, wenn er sich in seiner zweiten Stellung befindet.
  12. Verdichter nach den Ansprüchen 7 und 11, dadurch gekennzeichnet dass die die Patrone (35) aufnehmende Aufnahme (46) in den Körper (5) eingearbeitet ist und der Stift (47) in der zweite Spirale (10) montiert ist, und dass das Ende des ersten Einspritzkanals (48), das in die die Patrone aufnehmende Aufnahme (46) mündet, eine Öffnung bildet, in die der Stift (47) montiert ist, wobei der Stift (47) eine durchquerende Bohrung (49) umfasst, die ausgebildet ist, um den ersten Einspritzkanal (48) mit der in die Patrone (35) eingearbeiteten durchquerenden Öffnung (51) in Kommunikation zu bringen, wenn der Verschluss (26) in seiner ersten Stellung ist.
  13. Verdichter nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Öleinspritzmittel ausgebildet sind, um die Schnittstelle zwischen dem Körper (5) und der zweiten Spirale (10) mit Öl zu versorgen, wenn der Verschluss (26) in seiner ersten Stellung ist.
EP08827911A 2007-08-02 2008-07-24 Kühlkompressor mit spiralen von veränderlicher geschwindigkeit Active EP2174012B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0705667A FR2919688B1 (fr) 2007-08-02 2007-08-02 Compresseur frigorifique a spirales a vitesse variable
PCT/FR2008/051391 WO2009024698A2 (fr) 2007-08-02 2008-07-24 Compresseur frigorifique à spirales à vitesse variable

Publications (2)

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EP2174012A2 EP2174012A2 (de) 2010-04-14
EP2174012B1 true EP2174012B1 (de) 2011-01-12

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US (1) US8070465B2 (de)
EP (1) EP2174012B1 (de)
CN (1) CN101815872B (de)
AT (1) ATE495365T1 (de)
DE (1) DE602008004542D1 (de)
FR (1) FR2919688B1 (de)
WO (1) WO2009024698A2 (de)

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FR2969227B1 (fr) * 2010-12-16 2013-01-11 Danfoss Commercial Compressors Compresseur frigorifique a spirales
FR2969228B1 (fr) 2010-12-16 2016-02-19 Danfoss Commercial Compressors Compresseur frigorifique a spirales
FR2969226B1 (fr) * 2010-12-16 2013-01-11 Danfoss Commercial Compressors Compresseur frigorifique a spirales
CN102900650A (zh) * 2011-07-29 2013-01-30 惠而浦股份公司 泵送***和用于封闭式压缩机的油泵送***的轴及包括该***和/或轴的压缩机
BRPI1103384A2 (pt) * 2011-07-29 2013-07-30 Whirlpool Sa sistema de bombeamento e eixo para sistema de bombeamento de àleo para compressores hermÉticos e compressor compreendendo o sistema e/ou eixo
CN102330678B (zh) * 2011-09-16 2013-12-11 大连三洋压缩机有限公司 一种动涡旋浮动的涡旋式压缩机
JP5998818B2 (ja) 2011-10-17 2016-09-28 株式会社豊田自動織機 電動圧縮機
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Also Published As

Publication number Publication date
CN101815872B (zh) 2012-11-14
ATE495365T1 (de) 2011-01-15
EP2174012A2 (de) 2010-04-14
US8070465B2 (en) 2011-12-06
FR2919688A1 (fr) 2009-02-06
WO2009024698A3 (fr) 2009-05-22
US20090041603A1 (en) 2009-02-12
CN101815872A (zh) 2010-08-25
WO2009024698A2 (fr) 2009-02-26
FR2919688B1 (fr) 2013-07-26
DE602008004542D1 (de) 2011-02-24

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