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US20090110586A1 - Refrigerant compressor - Google Patents

Refrigerant compressor Download PDF

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Publication number
US20090110586A1
US20090110586A1 US12/315,719 US31571908A US2009110586A1 US 20090110586 A1 US20090110586 A1 US 20090110586A1 US 31571908 A US31571908 A US 31571908A US 2009110586 A1 US2009110586 A1 US 2009110586A1
Authority
US
United States
Prior art keywords
body element
suction pipe
compressor housing
pressure pipe
pipe
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.)
Abandoned
Application number
US12/315,719
Other languages
English (en)
Inventor
Walter Brabek
Manfred Jost
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.)
Secop Austria GmbH
Original Assignee
ACC Austria GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ACC Austria GmbH filed Critical ACC Austria GmbH
Assigned to ACC AUSTRIA GMBH reassignment ACC AUSTRIA GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRABEK, WALTER, JOST, MANFRED
Publication of US20090110586A1 publication Critical patent/US20090110586A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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 present invention relates to a hermetically encapsulated refrigerant compressor which comprises a hermetically sealed compressor housing, in the interior of which a piston-cylinder unit which compresses a refrigerant and a suction pipe and a pressure pipe are provided, with refrigerant flowing via the suction pipe to the piston-cylinder unit and the refrigerant compressed by the piston-cylinder unit being conveyed out of the compressor housing via the pressure pipe, with connection openings for the suction pipe and the pressure pipe being provided on the compressor housing which enable the overflow of the refrigerant from the outside of the compressor housing into the interior of the compressor housing and vice-versa, with the connection of the suction pipe and pressure pipe to the connection opening occurring in a hermetically tight manner by means of a connection apparatus, with the connection apparatus comprising a preferably sleeve-like body element and at least one spacer element which spaces the body element from the suction pipe/pressure pipe, in accordance with the preamble of claim 1 .
  • Such refrigerant compressors are used in the field of households and the industry where they are mostly arranged on the rear side of a refrigerator or refrigerated case. It is their task to compress and further convey refrigerant circulating in the cooling system, thus dissipating heat from the interior of the refrigerating, passing it on to the ambient environment and a refrigerating chamber or refrigerated case are thus refrigerated in the known manner.
  • the refrigerant compressor comprises a hermetically sealed compressor housing and an electric motor which drives a piston oscillating in a cylinder via a crankshaft to compress the refrigerant.
  • the compressor housing consists of a cover part and a base part and connection openings, with a suction pipe, a pressure pipe and other pipes optionally being provided which lead into and out of the compressor housing to convey the refrigerant to the cylinder and therefrom further in the refrigerant loop.
  • Possibilities for an improvement of the efficiency are especially the reduction of the temperature of the refrigerant at the beginning of the compression process. Any reduction of the intake temperature into the cylinder of the cylinder-piston unit therefore causes, like the reduction of the temperature during the compression process and, connected thereto, the expulsion temperature, a reduction of the required technical work for the compression process.
  • the pressure pipe indirectly also causes an additional heating of the suction pipe and thus the refrigerant which is directly before the compression cycle. Since the compressed refrigerant which is removed in the pressure pipe has temperatures of up to 100° C., there is also a strong heating of the pressure pipe which is transferred especially also in the area of the connection opening onto the compressor housing and from this to the suction pipe.
  • an insulation of the same in the area of the connection openings is of special relevance, i.e. at such a location where the suction pipe and pressure pipe and the compressor housing touch each other directly.
  • a compressor housing with a suction pipe consisting of two pipe elements that are slid into each other is known from U.S. Pat. No. 6,361,293, with the pipe element with the smaller diameter comprising an enlarged end section which is provided with an O-ring and makes contact with the inside of the other pipe element.
  • This measure is provided to ensure mobility of the suction pipe connected to a cylinder housing.
  • U.S. 2004/096338 A1 discloses a compressor housing with a tubular body element which is guided through the wall of the compressor housing in order to receive a pressure pipe, with an insert or spacer element that is also tubular being arranged between the body element and the pressure pipe.
  • the spacer element is welded together at the end side with the pressure pipe, while the body element is welded together at the end side with the spacer element.
  • a hermetically sealed compressor housing with a pipe connection apparatus is known from U.S. Pat. No. 6,257,846 B1, with an outer sleeve element which is guided through the wall of the compressor housing and an inner sleeve element being provided.
  • a suction pipe is held within the inner sleeve element. The inner and outer sleeve element and the suction pipe are soldered together simultaneously.
  • a compressor housing is known from EP 0 430 790 A1 whose components in adjacent areas are provided with a hermetically sealing layer or a bulge in order to dampen vibrations. It also discloses a pressure pipe connection with a body element made of an elastic material. Said body element is fastened by means of an adhesive layer to the housing wall and the pressure pipe.
  • connection apparatus is to be provided for this purpose which considerably reduces the heat transmission between the compressor housing and suction pipe or pressure pipe, so that the lowest possible temperature level of the refrigerant is ensured at the beginning of the compression process, i.e. during the aspiration into the cylinder of the piston-cylinder unit.
  • a refrigerant compressor comprises a hermetically sealed compressor housing in the interior of which a piston-cylinder unit works which compresses a refrigerant and a suction pipe and a pressure pipe is provided, with a refrigerant flowing in the known manner via the suction pipe to the piston-cylinder unit and the refrigerant compressed by the piston-cylinder unit being expelled from the compressor housing via the pressure pipe, with connection openings being provided on the compressor housing for the suction pipe and the pressure pipe which enable the overflow of the refrigerant from the outside of the compressor housing to the inside of the compressor housing and vice-versa, with the connection of the suction pipe or the pressure pipe to the connection opening. occurring in a hermetically sealed way through a connection apparatus.
  • connection apparatus comprises a preferably sleeve-like body element and at least one spacer element which keeps the body element away from the suction pipe and pressure pipe.
  • the body element is thus not in direct contact with the suction pipe and pressure and the introduction of heat into the body element occurs only to a limited extent through the spacer element.
  • the body element is attached outside of the connection opening to an outside of the compressor housing by enclosing the same in a hermetically sealing manner.
  • the body element can either be fastened with one face side directly to the compressor housing or by means of a contact section which is bent off at an angle of 90° for example.
  • the spacer element consists of a material that has a lower thermal conductivity than the body element in order to avoid heat transmission to a highest possible extent.
  • the body element and preferably also the spacer element is made of austenitic steel.
  • Austenitic steel is characterized in the present field of application by its reduced thermal conductivity and a high resistance to corrosion, tenacity and resistance to high temperatures.
  • the spacer element is made of foamed glass, plastic or a ceramic material according to the characterizing features of claim 4 .
  • the mentioned materials lead to a strong reduction of the undesirable heat transmission from the compressor housing or the body element in direct contact with the same to the suction pipe and vice-versa from the pressure pipe to the body element and the compressor housing as a result of their low heat transmission coefficient.
  • the spacer element is arranged as a section, preferably an end section of the body element, which extends under an angular inclination, preferably a right angle, relative to the axis of the suction pipe or pressure pipe in order to enclose the suction pipe or pressure pipe in a hermetically sealing manner.
  • the section or end section of the body element encloses the suction pipe/pressure pipe at a section of its longitudinal extension which lies outside of the connection opening or outside of the cross-sectional wall surface of the compressor housing which is projected in the normal direction onto the circumferential surface of the body element. Since the contact surface of the section or the end section of the body element with the suction pipe/pressure pipe is as far away as possible from the contact surface of the body element with the compressor housing, the path of heat transport to be bridged is extended and the heat transmission between suction pipe/pressure pipe and compressor housing is given the largest possible obstruction.
  • the end section of the body element which is arranged as a spacer element is provided with an annular opening according to the characterizing features of claim 8 .
  • the body element comprises a contact section which is fastened to the one on the outside of the compressor housing.
  • the diameter of the connection opening is preferably larger than the outer diameter of the section of the body element which is led through the connection opening. It is thus ensured that an abutting surface of the connection opening does not touch the body element, but remains spaced from the same. This measure too ensures that the insulating function of the connection apparatus in accordance with the invention is increased and the heat transmission between the suction pipe/pressure pipe and compressor housing is reduced.
  • Both the body element as well as the spacer element can also be arranged in several parts according to the characterizing features of claim 10 in order to enable further advantages in relation to production and heat technology.
  • FIG. 1 shows a basic part of a compressor housing in an oblique view
  • FIG. 2 shows a basic part of a compressor housing in a top view
  • FIG. 3 shows a partial sectional view of the compressor housing of FIG. 2 along lines A-A and B-B with a connection apparatus according to the state of the art;
  • FIG. 4 shows an enlarged view of the detail A of FIG. 3 ;
  • FIG. 5 shows an alternative embodiment of a connection apparatus according to the state of the art
  • FIG. 6 shows a further alternative embodiment of a connection apparatus according to the state of the art
  • FIG. 7 shows a further alternative embodiment of a connection apparatus according to the state of the art
  • FIG. 8 shows a further alternative embodiment of a connection apparatus according to the state of the art
  • FIG. 9 shows an embodiment of a connection apparatus according to the invention.
  • FIG. 10 shows a further embodiment of a connection apparatus according to the invention.
  • FIG. 11 shows a further embodiment of a connection apparatus according to the invention.
  • FIG. 12 shows a further embodiment of a connection apparatus according to the invention.
  • a refrigerant compressor comprises a hermetically sealed compressor housing 1 , with a suction pipe 2 , a pressure pipe 3 and a service pipe 4 opening into the same via connection openings 5 .
  • a refrigerant flows via the suction tube 2 in the known manner to a piston-cylinder unit (not shown) which is arranged within the compressor housing 1 and in which a compression of the refrigerant occurs, with the pressure pipe 3 subsequently leading the compressed and therefore strongly heated refrigerant from the piston-cylinder unit out of the compressor housing 1 to a cooling circuit (also not shown) of a cooling space.
  • the piston-cylinder unit is driven by an electromotor via a crankshaft, so that cooling space associated with the refrigerant compressor is continually cooled by means of the circulating refrigerant.
  • Compressor housing 1 comprises several standing elements 6 which are used to position the same on a floor space of a refrigerating device determined for this purpose.
  • FIG. 1 merely shows a base part of a compressor housing 1 in this connection on which subsequently a cover part (not shown) will be placed
  • the compressor housing 1 can also be arranged in another manner, e.g. in the form of a compressor housing 1 which is divided in an oblique way or composed in another manner. It is also possible to lead the suction pipe 2 , the pressure pipe 3 or service pipe 4 through the cover part into the interior of the compressor housing, with suction pipe 2 and pressure pipe 3 not needing to extend necessarily in pairs next to one another as shown in FIG. 1 , but can also open in connection openings 5 of the compressor housing 1 which are arranged offset in a random way, or can lead out of the same.
  • Service pipe 4 is merely used for filling the compressor housing 1 with a suitable refrigerant or with an oil required for lubrication.
  • FIG. 2 shows a top view of the compressor housing 1 shown in FIG. 1 in an oblique view and forms the reference for the partial sectional view as shown in FIG. 1 with the sectional guides A-A and B-B as shown therein, which partial sectional view shows a conventional pipe connection to the compressor housing 1 as known from the state of the art.
  • the suction pipe and/or the pressure pipe pass through the connection opening 5 through a connection apparatus 9 which is connected with the compressor housing 1 in a hermetically sealed manner, with the connection apparatus 9 on its part being connected with the suction pipe and pressure pipe in a hermetically sealed manner, preferably by being welded.
  • FIGS. 4 and 5 also show pipe connections according to the state of the art in a detailed view.
  • the compressor housing 1 mostly consists of deep-drawing steel, whereas the suction pipe 2 and the pressure pipe 3 consist of copper, a copper/iron alloy or also of a pure iron material.
  • a connection apparatus 9 it is common practice to fasten the suction pipe 2 and the pressure pipe 3 by means of a connection apparatus 9 to the connection openings 5 of the compressor housing 1 .
  • a steel disk is soldered onto suction pipe 2 and pressure pipe 3 for example and this system is welded in a further process of work to the compressor housing 1 .
  • connection opening 5 or the area of the compressor housing 1 enclosing the same can be prepared in a manner that an interlocking contact is enabled between the mutually contacting surfaces of the compressor housing 1 and the connection apparatus 9 , e.g. by mutually corresponding bezels 14 ( FIG. 4 ) which are provided both on the connection apparatus 9 as well as the compressor housing 1 .
  • FIG. 5 Another kind of connection of the suction pipe 2 and pressure pipe 3 to the compressor housing 1 is shown in FIG. 5 , with a Cu or Cu/Fe pipe being shown which was swaged and is brought into contact with a bezel 14 of the connection opening 5 of the compressor housing 1 by means of a protrusion of the pipe cross section which was obtained in the course of the swaging and is connected in a hermetically sealed manner with the compressor housing 1 by means of welding for example.
  • FIGS. 6 to 8 show other connection possibilities for the suction pipe 2 /pressure pipe 3 as known from the state of the art, comprising a contact of the connection apparatus 9 with the outside 13 of the compressor housing 1 ( FIG. 7 ), a pipe connection with contact of the connection apparatus 9 with inside 12 of the compressor housing 1 ( FIG. 8 ) or a pipe connection without contact of the connection apparatus 9 on the compressor housing ( FIG. 9 )
  • connection apparatus 9 made of a metallic material or a metal alloy provides a high heat transmission from the compressor housing 1 to the suction pipe 2 and from the pressure pipe 3 which carries a strongly heated refrigerant to the compressor housing 1 and thus again to the suction pipe 2 which is in direct contact with the compressor housing 1 or is in direct contact via the connection apparatus 9 .
  • An unhindered heat transmission at the mentioned places is undesirable for the reasons as explained above and reduces the efficiency of the refrigerant compressor because the refrigerant drawn into the cylinder of the piston-cylinder unit is heated unnecessarily in this process.
  • connection apparatus 9 comprises a body element 8 and at least one spacer element 7 which spaces the body element 8 from the suction pipe 2 and pressure pipe 3 .
  • Body element 8 therefore is no longer in direct contact with the suction pipe 2 or pressure pipe 3 , or the contact zones between these elements are kept very small.
  • the body element 8 is arranged on the compressor housing 1 outside of the connection opening 5 and enclosing the same ( FIG. 11 ) .
  • the body element 8 is fastened with an obtuse cross-sectional surface area directly to the outside 13 of the compressor housing 1 .
  • a contact section which is bent by an angle of 90° for example can also be provided for a more stable fastening of the body element 8 .
  • a rear venting space is formed between the suction pipe 2 /pressure pipe 3 and body element 8 , which space communicates with the ambient air indicated by arrows 15 outside of the compressor housing 1 via the connection opening 5 of the compressor housing 1 and thus enables an additional cooling effect.
  • the diameter of the connection opening 5 is larger for this purpose than the diameter of the suction pipe 2 /pressure pipe 3 .
  • FIG. 11 already shows an alternative embodiment of the connection apparatus 9 , with body element 8 and spacer element 7 being arranged as an integral component.
  • the spacer element 7 is arranged as an end section of the body element 8 which extends under an angular inclination, preferably at a right angle, to the axis of the suction pipe 2 /pressure pipe 3 in order to enclose the suction pipe 2 /pressure pipe 3 in a hermetically sealing manner, e.g. by soldering or welding.
  • the body element 8 is preferably arranged in a sleeve-like manner, and thus comprises a wall section (see FIG. 9 ) which extends substantially parallel to the axis of the suction pipe 2 /pressure pipe 3 or to the axis of the connection opening 5 .
  • a wall section see FIG. 9
  • the body element 8 can also be arranged in a convex, concave or irregular geometrical way.
  • the body element 8 does not touch the suction pipe 2 /pressure pipe 3 over a length which enables an unhindered heat transmission, but is spaced from the same via a spacer element 7 , even if only minimally.
  • a cylindrical foamed glass body is used as a spacer element 7 which is arranged between body element 8 and the suction pipe 2 /pressure pipe 3 , with the foamed glass body being connected in a hermetically sealed manner with the suction pipe 2 /pressure pipe 3 on the one hand and the body element 8 on the other hand.
  • the spacer element 7 preferably consists of a material that has a worse thermal conductivity than the body element 8 .
  • the body element 8 In order to fasten the body element 8 reliably on the compressor housing 1 , it can be provided with a stop section 10 which rests on the outside 13 or on the inside 12 of the compressor housing 1 and is fastened there in the known manner, i.e. it is soldered or welded.
  • the contact section 10 preferably concerns an integral part of the body element 8 which is provided with its desired dimensioning in a bending or deep drawing process. In the case of a multi-part arrangement of the body element 8 , the contact section 10 can also be made as a separate element which is soldered or welded onto the sleeve-like body element 8 .
  • the diameter of the connection opening 5 is dimensioned larger than the outer diameter of the section of the body element 8 which is guided through the connection opening 5 . It is thus ensured that an abutting surface 11 of the connection opening 5 does not contact the body element 8 , but is spaced from the same. An annular gap is thus formed in this way between the body element 8 and the abutting surface 11 in which outside air can circulate and can cool the connection apparatus 9 .
  • the spacer element 7 When choosing suitable materials for the spacer element 7 , its coefficient of thermal conduction ⁇ is of relevance; it defines the heat quantity which passes in a unit of time through a layer of the surface area and thickness unit at 1 K temperature difference and is expressed in W/(m*K). Whereas copper (temperature-dependent) has a comparatively high coefficient of thermal conduction ⁇ of approximately 380 W/(m*K), ⁇ in unalloyed steel is approximately 100 W/(m*K) . By adding suitable alloy elements such as chromium, nickel, manganese or molybdenum, the coefficient of thermal conduction ⁇ of steel can be reduced to a considerable extent. Cr/Ni steel can have a coefficient of thermal conduction ⁇ of less than 20 W/(m*K) for example.
  • ceramic materials have proven to be very advantageous in the present field of application, especially such on the basis of metal oxides.
  • so-called special ceramic masses or technical masses such as highly sintered oxide ceramics made of aluminum, magnesium, beryllium or zirconium oxide can be used.
  • solderable ceramic materials are concerned, so that perfect soldering of spacer element 7 and suction pipe 2 /pressure pipe 3 on the one hand and body element 8 and even compressor housing 1 on the other hand is enabled in order to achieve the required tightness.
  • Plastic materials which offer temperature stability and resistance to ageing can also be used as materials for the spacer element 7 , which materials are applied by suitable fastening measures such as shrinking, gluing, lasing, extrusion-coating or laminating onto the suction pipe 2 /pressure pipe 3 .
  • Austenitic steel is preferred as a material for the body element 8 .
  • Austenitic steel is characterized in the present field of application by its alloy percentage (e.g. Cr/Ni or Mg-alloys) with a reduced thermal conductivity and a high resistance to corrosion, tenacity and high-temperature resistance. At the same time, this material also allows hermetically sealed connection of the body part 8 to the compressor housing by means of welding.
  • FIG. 10 shows an alternative embodiment of the connection apparatus 9 , with the body element 8 and the spacer element 7 being arranged as an integral component.
  • the spacer element 7 is arranged as an end section of the body element 8 which extends under an angular inclination, preferably a right angle to the axis of the suction pipe 2 /pressure pipe 3 in order to enclose the suction pipe 2 /pressure pipe 3 in a hermetically sealing manner, e.g. by soldering or welding.
  • the inside diameter of the sleeve-like body element 8 is always larger than the outside diameter of the suction pipe 2 /pressure pipe 3 , so that an air cushion (gas mixture, refrigerant) is formed between the suction pipe 2 /pressure pipe 3 and the body element 8 which has an insulating function and also strongly reduces the heat transmission between suction pipe 2 /pressure pipe 3 and compressor housing 1 .
  • the end section of the body element 8 can also be a separately produced element which is attached to the face side of the sleeve-like body element 8 and encloses the suction pipe 2 /pressure pipe 3 .
  • the relevant aspect is that the heat flow from the body element 8 to the suction pipe 2 and from the pressure pipe 3 to the body element 8 occurs only via the spacer element 7 due to lack of contact between body element and suction pipe 2 /pressure pipe 3 , with the body element 8 and the spacer element 7 being produced in an integral way or also in several parts.
  • Body element 8 can also be arranged in a position reversed over the one shown in FIG. 10 , i.e. with an end section as a spacer element 7 which is arranged in the area of the inside 12 of the compressor housing 1 , with the suction pipe/pressure pipe section being subjected in the area of the connection opening to a rear ventilation and cooling by the air enclosing the compressor housing 1 .
  • the end section of the body element 8 encloses the suction pipe 2 /pressure pipe 3 at a section of its longitudinal extension which lies outside of the connection opening 5 or outside of a cross-sectional wall surface of the compressor housing 1 projected against the circumferential surface of the body element 8 .
  • the contact surface of the end section of the body element 8 with the suction pipe 2 /pressure pipe 3 is therefore not arranged in the direct vicinity of the contact surface of the body element 8 with the compressor housing 1 , but at a distance promoting the insulating function.
  • the end section of the body element 8 which is arranged as a spacer element 7 is provided with an annular opening within which the suction pipe 2 /pressure pipe 3 is fastened in a sealed manner.
  • a body element 8 in several parts which consists of several elements engaging into each other has the advantage of larger flexibility in the production and surface machining and allows for a specific arrangement of the connection system depending on the respective requirements and fields of application.
  • FIG. 12 finally shows a special embodiment of a connection apparatus 9 which comprises a spacer element 7 which is preferably made of foamed glass, plastic or ceramic material, with the spacer element 7 being arranged in an L-shaped way and being arranged directly between the abutting area 11 of the connection opening 5 and suction pipe 2 /pressure pipe 3 .
  • a leg section 16 of the spacer element 7 is enclosed by the body element 8 and pressed against the outside 13 of the compressor housing 1 .
  • the spacer element 7 need not necessarily have a hermetically sealing function in this configuration if the body element 8 is connected in a hermetically sealing manner both with the compressor housing 1 as well as the suction pipe 2 /pressure pipe 3 .
  • This configuration thus offers the advantage that materials can also be used for the spacer element 7 with which a hermetically sealing connection can be produced only with difficulty to another medium, especially such materials which cannot be soldered or welded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
US12/315,719 2006-06-08 2008-12-05 Refrigerant compressor Abandoned US20090110586A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATGM450/2006 2006-06-08
AT0045006U AT9233U1 (de) 2006-06-08 2006-06-08 Kältemittelverdichter
PCT/EP2007/055648 WO2007141326A1 (fr) 2006-06-08 2007-06-08 Compresseur de réfrigérant

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/055648 Continuation WO2007141326A1 (fr) 2006-06-08 2007-06-08 Compresseur de réfrigérant

Publications (1)

Publication Number Publication Date
US20090110586A1 true US20090110586A1 (en) 2009-04-30

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Application Number Title Priority Date Filing Date
US12/315,719 Abandoned US20090110586A1 (en) 2006-06-08 2008-12-05 Refrigerant compressor

Country Status (6)

Country Link
US (1) US20090110586A1 (fr)
EP (1) EP2027391B1 (fr)
CN (1) CN101466950A (fr)
AT (2) AT9233U1 (fr)
SI (1) SI2027391T1 (fr)
WO (1) WO2007141326A1 (fr)

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US10928108B2 (en) 2012-09-13 2021-02-23 Emerson Climate Technologies, Inc. Compressor assembly with directed suction
US11236748B2 (en) 2019-03-29 2022-02-01 Emerson Climate Technologies, Inc. Compressor having directed suction
US11248605B1 (en) 2020-07-28 2022-02-15 Emerson Climate Technologies, Inc. Compressor having shell fitting
US11353027B2 (en) * 2019-02-15 2022-06-07 Lg Electronics Inc. Compressor having bypassing portion
US20220299138A1 (en) * 2019-12-06 2022-09-22 Daikin Industries, Ltd. Compressor and compressor unit
US11619228B2 (en) 2021-01-27 2023-04-04 Emerson Climate Technologies, Inc. Compressor having directed suction
CN116292308A (zh) * 2023-03-13 2023-06-23 西安庆安制冷设备股份有限公司 一种吸气连接管组件及双缸压缩机
US11767838B2 (en) 2019-06-14 2023-09-26 Copeland Lp Compressor having suction fitting
US12180966B2 (en) 2022-12-22 2024-12-31 Copeland Lp Compressor with funnel assembly
US20250043787A1 (en) * 2022-04-27 2025-02-06 Daikin Industries, Ltd. Method using refrigerant for compressor, compressor, and refrigeration cycle apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010016684A2 (fr) * 2008-08-05 2010-02-11 (주)엘지전자 Compresseur rotatif
KR20160055497A (ko) 2014-11-10 2016-05-18 엘지전자 주식회사 왕복동식 압축기 및 그 조립방법

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209991A (en) * 1963-12-16 1965-10-05 Westinghouse Electric Corp Sealed compressor unit assembly
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
US4640669A (en) * 1984-11-13 1987-02-03 Tecumseh Products Company Rotary compressor lubrication arrangement
US4815947A (en) * 1985-11-15 1989-03-28 Kabushiki Kaisha Toshiba Compressor and method of assembling thereof
US5039287A (en) * 1988-09-06 1991-08-13 Empresa Brasileira De Compressores S/A-Embraco Direct suction system for a hermetic rotary compressor with insulating material at intake conduit
US5158514A (en) * 1989-12-01 1992-10-27 L'unite Hermetique Silent hermetic motor-compressor set
US6257846B1 (en) * 1997-06-30 2001-07-10 Matsushita Electric Industrial Co., Ltd. Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
US6361293B1 (en) * 2000-03-17 2002-03-26 Tecumseh Products Company Horizontal rotary and method of assembling same
US20040096338A1 (en) * 2002-11-19 2004-05-20 Sung-Ho Cheon Assembling mechanism of discharge pipe for hermetic compressor and method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209991A (en) * 1963-12-16 1965-10-05 Westinghouse Electric Corp Sealed compressor unit assembly
US4240774A (en) * 1979-02-15 1980-12-23 General Electric Company Hermetically sealed compressor suction tube and method of assembly
US4640669A (en) * 1984-11-13 1987-02-03 Tecumseh Products Company Rotary compressor lubrication arrangement
US4815947A (en) * 1985-11-15 1989-03-28 Kabushiki Kaisha Toshiba Compressor and method of assembling thereof
US5039287A (en) * 1988-09-06 1991-08-13 Empresa Brasileira De Compressores S/A-Embraco Direct suction system for a hermetic rotary compressor with insulating material at intake conduit
US5158514A (en) * 1989-12-01 1992-10-27 L'unite Hermetique Silent hermetic motor-compressor set
US6257846B1 (en) * 1997-06-30 2001-07-10 Matsushita Electric Industrial Co., Ltd. Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing
US6361293B1 (en) * 2000-03-17 2002-03-26 Tecumseh Products Company Horizontal rotary and method of assembling same
US20040096338A1 (en) * 2002-11-19 2004-05-20 Sung-Ho Cheon Assembling mechanism of discharge pipe for hermetic compressor and method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10928108B2 (en) 2012-09-13 2021-02-23 Emerson Climate Technologies, Inc. Compressor assembly with directed suction
US10995974B2 (en) 2012-09-13 2021-05-04 Emerson Climate Technologies, Inc. Compressor assembly with directed suction
US11353027B2 (en) * 2019-02-15 2022-06-07 Lg Electronics Inc. Compressor having bypassing portion
US11236748B2 (en) 2019-03-29 2022-02-01 Emerson Climate Technologies, Inc. Compressor having directed suction
US11767838B2 (en) 2019-06-14 2023-09-26 Copeland Lp Compressor having suction fitting
US20220299138A1 (en) * 2019-12-06 2022-09-22 Daikin Industries, Ltd. Compressor and compressor unit
US12338921B2 (en) * 2019-12-06 2025-06-24 Daikin Industries, Ltd. Compressor and compressor unit
US11248605B1 (en) 2020-07-28 2022-02-15 Emerson Climate Technologies, Inc. Compressor having shell fitting
US11619228B2 (en) 2021-01-27 2023-04-04 Emerson Climate Technologies, Inc. Compressor having directed suction
US20250043787A1 (en) * 2022-04-27 2025-02-06 Daikin Industries, Ltd. Method using refrigerant for compressor, compressor, and refrigeration cycle apparatus
US12180966B2 (en) 2022-12-22 2024-12-31 Copeland Lp Compressor with funnel assembly
CN116292308A (zh) * 2023-03-13 2023-06-23 西安庆安制冷设备股份有限公司 一种吸气连接管组件及双缸压缩机

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EP2027391B1 (fr) 2012-02-29
CN101466950A (zh) 2009-06-24
WO2007141326A1 (fr) 2007-12-13
ATE547630T1 (de) 2012-03-15
EP2027391A1 (fr) 2009-02-25
SI2027391T1 (sl) 2012-07-31

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