EP2764248B1 - Compresseur doté d'une rainure de décompression - Google Patents

Compresseur doté d'une rainure de décompression Download PDF

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Publication number
EP2764248B1
EP2764248B1 EP12773223.8A EP12773223A EP2764248B1 EP 2764248 B1 EP2764248 B1 EP 2764248B1 EP 12773223 A EP12773223 A EP 12773223A EP 2764248 B1 EP2764248 B1 EP 2764248B1
Authority
EP
European Patent Office
Prior art keywords
compressor
pressure
groove
housing
relief
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
EP12773223.8A
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German (de)
English (en)
Other versions
EP2764248A2 (fr
Inventor
Michael Krug
Jan Hinrichs
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.)
Magna Powertrain Bad Homburg GmbH
Original Assignee
Magna Powertrain Bad Homburg 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.)
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Publication date
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Publication of EP2764248A2 publication Critical patent/EP2764248A2/fr
Application granted granted Critical
Publication of EP2764248B1 publication Critical patent/EP2764248B1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1081—Casings, housings
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing

Definitions

  • the invention relates to a compressor with a pressure chamber which is delimited by at least two housing parts.
  • the invention relates to such a compressor for use in an air conditioning system of a motor vehicle.
  • Compressors of this type are known. Your pressure chamber is delimited by at least two housing parts, which are connected by means of a connecting device which applies a contact force between the sealing surfaces.
  • Such a compressor is known in which a plurality of the pressure chamber forming housing parts are screwed together.
  • a screwing of housing parts is a simple and inexpensive way of connecting the pressurized housing parts.
  • known compressors are often designed such that they are subjected during operation or in case of malfunction with high internal pressures, which makes a generous and space-consuming design of the screw to connect the housing parts required to rule out the possibility of unwanted detachment of a housing part.
  • the object of the invention is to provide an improved compressor. This object is achieved by a device according to independent claim 1. Preferred developments of this device are the subject of the dependent claims.
  • the invention according to the independent claim 1 offers the advantage that with a relatively simple safety device, the maximum pressure against which a connecting device must apply a contact force between the housing parts, can be predetermined. This makes it possible to dimension the connecting device smaller than in known compressors under the same conditions of use, whereby cost and space advantages arise.
  • a compressor with a pressure chamber which is delimited by at least two housing parts and provided or suitable in particular for use in an air conditioning system of a motor vehicle.
  • the housing parts on sealing surfaces which are connected by means of a connecting device which applies a contact force between the sealing surfaces.
  • at least one sealing surface of at least one housing part at least one groove extending in the circumferential direction is arranged.
  • At least one relief opening is arranged on this at least one housing part, which connects this groove with the surroundings of the housing, the at least one relief opening extending from the circumferentially extending groove, and wherein the groove is arranged so that when a predetermined maximum pressure is exceeded in the pressure chamber, the pressure-building medium, in particular a coolant, collect in the groove and can escape at least partially through the discharge opening.
  • the invention will be described below with reference to a compressor for use in an air conditioning system of a motor vehicle, in particular in a motor vehicle operated electrically or by hybrid drive.
  • the invention is also applicable in an air conditioning system of a motor vehicle with an internal combustion engine.
  • the invention can also be used in air conditioning systems in stationary applications, in particular Buildings, or used for pressurized housing in other applications.
  • a disclosed in this document compressor thus has no outgoing from a circumferentially extending groove relief opening, but only a discharge hole, which is spaced from a groove.
  • a discharge opening extends directly from a groove extending in the circumferential direction, so that the pressure of the surroundings of the compressor prevails in the entire circumferential groove substantially.
  • an inventive compressor with respect to the compressor according to the DE 198 07 691 A1 the advantage that, relative to a longitudinal axis of the compressor, axial compressive force between two housing parts can be limited, whereas in a compressor according to the DE 198 07 691 A1 only a radial compressive force is avoided.
  • This limitation of the axial pressure force in particular allows a smaller dimensioning of a connecting device between housing parts, without a required minimum contact pressure between the housing parts to maintain a pressure chamber inside the compressor is reached.
  • a compressor according to the invention has the advantage that the groove running in the circumferential direction does not have to have a sealing function, in particular, and thus can be optimized in terms of its function of reducing the pressure.
  • a compressor in the context of the invention is a device to understand, by means of which coolant of an air conditioner, in particular a motor vehicle, compressed - that can be compressed - can be.
  • Such, also called semi-hermetic, compressor preferably has a piston device which is driven by a shaft to compress the coolant.
  • this shaft is mounted completely within the housing of the compressor.
  • the piston device is arranged in a housing of the compressor, which has a plurality of housing parts, preferably at least one housing pot and a housing cover. These housing parts delimit a pressure chamber of the compressor.
  • sealing surfaces which - mediate a connecting device - apply a sufficiently high contact force to each other to demarcate the pressure chamber at normal operating pressure against the environment of the compressor.
  • the sealing surfaces are planar.
  • a pressure chamber in the sense of the invention is to be understood as meaning a volume demarcated by housing parts, within which preferably a piston device of a compressor is mounted.
  • the pressure build-up in the pressure chamber takes place by means of compression of a pressure-building medium, in particular the coolant of the compressor, by the piston means of the compressor.
  • a compressor housing consists of two or more housing parts.
  • the interfaces of the individual housing parts against each other have sealing surfaces.
  • a sealing surface of a housing part in the sense of the invention is to be understood as meaning a surface of a housing part which adjoins a corresponding sealing surface of another housing part in such a way that a sufficiently large contact pressure between the two sealing surfaces can be applied when connecting the two sealing surfaces by means of a connecting device the pressurized medium in the pressure chamber, preferably the coolant, is prevented from escaping until reaching a maximum pressure predetermined, for example, by the design of the compressor.
  • connection device is understood to be a device by means of which a contact pressure force can be applied between the sealing surfaces of the housing parts of the compressor.
  • a connecting device preferably has a plurality of connecting elements, through which the application of the contact pressure between the sealing surfaces.
  • Pressurable housings which have housing parts which are connected by releasable connecting elements are referred to as semi-hermetic housings.
  • a contact force between the sealing surfaces of housing parts is to be understood as meaning a force which counteracts the mutual removal of individual housing parts from one another under the influence of the pressurized medium in the pressure chamber.
  • the surface pressure resulting from the contact pressure generated by the connecting device in a sealing surface of the compressor is preferably more than twice as great as the force acting against this surface pressure, which is generated by applying the maximum operating pressure between the connected housing parts.
  • the contact pressure also causes the pressurized medium, in particular coolant, can not escape between the housing parts.
  • a maximum pressure in the pressure chamber of the compressor is to be understood in the context of the invention, that pressure at whose concerns in the pressure chamber, the connecting means of the compressor is just in a position with a predetermined security, in particular a reserve of contact pressure, a sufficient contact force between Ensure the sealing surfaces of the housing parts. This is necessary to counteract the forces given by the maximum pressure for releasing the connection between the sealing surfaces and thus to prevent pressurized medium, in particular coolant, from escaping until the maximum pressure is reached.
  • a groove running in the circumferential direction in a sealing surface of a housing part is to be understood as meaning a groove which extends from the sealing surface, preferably the plane of the sealing surface, into the housing part belonging to the sealing surface, wherein the surface area, in which the groove extends, extending in the circumferential direction between an inner, the sealing surface final edge contour and an outer, the sealing surface final edge contour.
  • the groove is designed such that when the maximum pressure is exceeded from the pressure chamber exiting, pressure-building medium in the groove collect and can escape at least partially through a discharge opening.
  • the groove diameter must be designed in such a way that housing parts can not gape up to the groove at maximum operating pressure.
  • an opening is to be understood, which establishes a connection from the circumferentially extending groove to the environment of the compressor.
  • the discharge opening is designed as a channel capable of guiding pressure, which has been excluded from housing parts or the connecting device for the purpose of depressurizing, or as a volume which is arranged anyway in recesses for the passage of elements of the connecting device.
  • a relief opening preferably its radially inner end, starts from the groove extending in the circumferential direction, wherein in the context of the invention "to go out” means that a relief opening is not spaced from the groove, in particular one of the channels or recesses of the relief opening in present sense.
  • the environment of the housing means an area which is subjected essentially to atmospheric pressure, preferably an area, which is characterized by the normal ambient conditions in the installation space of an air conditioning system, in particular in a motor vehicle.
  • the connecting elements of a connecting device of the compressor can expand, wherein the sealing surfaces can gape on their side facing the pressure chamber.
  • the entire pressurized medium remains in the pressure chamber, as long as the pressure does not exceed the maximum pressure.
  • an inventive, circumferentially extending groove is introduced into at least one sealing surface of a housing part and brought into contact with the environment of the compressor via a discharge opening, so that a pressure relief can take place as soon as the housing parts gape apart their sealing surfaces to the position of the groove according to the invention.
  • the connecting device has a plurality of connecting elements.
  • these connecting elements protrude through recesses in the sealing surfaces of the housing parts to be joined.
  • the centers of these recesses are preferably arranged substantially equidistant from that edge contour of the sealing surface, which faces the pressure chamber.
  • connecting elements in the context of the invention are to be understood elements by means of which a contact force between the sealing surfaces of different housing parts can be applied.
  • the connecting elements are designed as screws or as bolts and protrude through recesses, which are arranged in the sealing surfaces of the housing parts to be joined.
  • the connecting elements are designed, for example, as clamps which are attached to designated and preferably designed coupling regions on the side of the housing parts to be connected to the surroundings. In order to apply the necessary contact force these clamps are preferably formed with corresponding spring properties.
  • recesses in the sealing surfaces of the housing parts to be joined are in the context of the invention recesses to be understood, which extend from the surface of a sealing surface in or through a housing part.
  • these recesses are designed as grooves or holes, particularly preferably as through holes or blind holes.
  • the recesses may also have an internal thread, which is suitable for screwing with a screw.
  • the recesses may also have fits, which are suitable for pinning a recess with a bolt used.
  • the discharge opening is formed by at least one discharge channel in at least one of the sealing surfaces, said discharge channel extending from the circumferentially extending groove to the surroundings of the compressor.
  • a discharge channel in the context of the invention is to be understood a channel which emanates from the groove extending in the circumferential direction in a sealing surface and is suitable, a medium from the pressure chamber, in particular cooling medium, of the in Extend circumferentially extending groove directly or indirectly to the environment.
  • the discharge opening is formed by at least one discharge channel in at least one of the sealing surfaces, said discharge channel extending from the groove extending in the circumferential direction to a recess for a connecting element.
  • At least one of the connecting elements is designed and arranged such that the medium accumulated in the groove extending in the circumferential direction can escape into the environment of the compressor.
  • an escape of the medium through at least one passage recess in at least one housing part and a groove in this housing part, preferably in the direction of the screw head are preferably provided.
  • the discharge opening has at least one discharge channel, which extends from at least one of the recesses for connecting elements, in particular through holes, at least one of the housing parts to the surroundings of the compressor.
  • a relief channel is provided in particular when the groove running in the circumferential direction is located at a substantially identical distance to the housing interior as the corresponding through hole, wherein the groove opens into at least one through-hole.
  • At least one sealing element is arranged in the groove extending in the circumferential direction.
  • the groove is preferably arranged close to the pressure chamber of the compressor.
  • a sealing element according to the invention is an element to understand, which is provided in the event of entry of pressurized medium in the circumferential groove to a predetermined maximum pressure to escape the pressurized medium, in particular a coolant, preferably a CO 2 -containing coolant or CO 2 , to prevent.
  • a coolant preferably a CO 2 -containing coolant or CO 2
  • Fig. 1 shows an exemplary embodiment of the sealing surface 25 of a housing 20 of a compressor 10 according to the invention.
  • the sealing surface 25 is planar and bounded by two substantially concentric circles with different radii.
  • a plurality of recesses of screw holes 21 are arranged, wherein these screw holes 21 extend orthogonally from the sealing surface 25 into the housing 20.
  • the nine in this embodiment of the housing 20 in the region of the sealing surface 25 recessed screw holes 21 are arranged distributed at equal intervals on the circumference of the sealing surface 25.
  • the radial distances of the individual screw holes 21 from the inner edge of the sealing surface are substantially identical.
  • the sealing surface 25 has a groove 40 according to the invention.
  • This groove 40 extends in the circumferential direction of the housing 20 and the sealing surface 25 in a substantially constant radial distance from the inner edge of the sealing surface.
  • the groove 40 extends in the sealing surface 25 in the radial position, in which the screw holes 21 are arranged.
  • the groove 40 cuts all nine bolt holes 21 of the housing 20 and is thereby interrupted at nine points.
  • the radial width of the groove 40 is small in relation to the radial width of the screw hole 21.
  • Fig. 2 shows a compressor 100 according to the prior art with a pressure chamber under maximum pressure 13.
  • This compressor 10 has a housing 20 and a housing cover 30.
  • the housing 20 and the housing cover 30 are connected at their respective sealing surfaces 125 and 135 such that in the interior of the compressor 10, a pressure chamber 13 is formed, wherein in the region of the sealing surfaces 125 and 135, a rubber-metal seal 60 is arranged.
  • the two housing parts 20 and 30 are connected by means of a plurality of housing screws 150, which are guided by screw through holes 32 in the housing cover 30 and screwed into threaded bores 21 in the housing 20.
  • the compressor is pressurized when exposed to maximum pressure equal to the bursting pressure.
  • Fig. 3 shows an exemplary embodiment of a compressor 10 according to the invention with relief groove at operating pressure.
  • the exemplary embodiment shown here differs from a in Fig. 2 illustrated compressor 10 according to the prior art by less designed housing screws 50, which need not be designed as large as the connecting bolts 150 in due to the arrangement of inventive grooves 40a and 40b in the sealing surfaces 35 and 25 Fig. 2 ,
  • the compressor 10 in accordance with the invention Fig. 3 is shown with a pressurization at operating pressure in the pressure chamber 12, so that the diameter of the pressurized surface at operating pressure D B is smaller than that in Fig. 2 represented diameter D HS , since at operating pressure, the sealing surfaces 35 and 25 of the housing cover 30 and the housing 20 do not gape apart.
  • the exemplary embodiment of the compressor 10 described here has a groove 40a in the sealing surface 35 of the housing cover 30 and a groove 40b in the sealing surface 25 of the housing 20. These grooves extend in the circumferential direction of the respective sealing surface and extend in the embodiment over its entire circumference. At each position in the circumference of the respective sealing surface, are arranged on the threaded bores 21 and fferen shedgangsbohrept 32 extends in the radial direction, a discharge channel 27 or 37 in the sealing surface of the housing 20 or the housing cover 30.
  • the grooves 40a and 40b are formed such that can accumulate pressurized medium E in them.
  • the relief channels 27 and 37 are formed such that they can direct pressurized medium E from the respective groove 40 to the screw through holes 32.
  • Fig. 4 shows the exemplary embodiment of the compressor according to the invention Fig. 3 upon exposure of the pressure chamber 13 with maximum pressure.
  • the housing parts 20 and 30 apart in the region of their inner sealing surfaces 25 and 35, so that a gap 31 is formed. Due to the formation of this gap 31, the diameter of the pressurized surface increases to the diameter D HE , which is smaller than the diameter D HS of the pressurized surface at maximum pressure in a compressor 10 according to the prior art.
  • the gap 31 between the sealing surfaces 25 and 35 opens radially outward to the grooves 40a and 40b, whereupon they fill with pressurized medium E, which is discharged via the discharge channels 27 and 37 to the respective screw through-bore 32 and over this can escape into the environment 11 of the compressor 10.
  • pressurized medium E which is discharged via the discharge channels 27 and 37 to the respective screw through-bore 32 and over this can escape into the environment 11 of the compressor 10.
  • a groove in the head of those housing screws 50 is provided through the screw through holes 32 pressurized medium is performed.
  • the radial position of the grooves 40a and 40b limits the maximum possible diameter D HE of the pressurized surface at maximum pressure such that a smaller design of the housing screws 50 is possible, because by the restriction of the diameter D HE applied by the pressurized medium force to solve the eritatispartner 21, 30 and 50 is also limited.
  • Fig. 5 shows a further exemplary embodiment of a compressor 10 according to the invention with relief groove at maximum pressure.
  • the discharge of the pressurized medium E from the grooves 40a and 40b also takes place via discharge channels 27 and 37 in the sealing surface 25 of the housing 20 and the sealing surface 35 of the housing cover 30.
  • the relief channels 27 and 37 are, based on the Sealing surfaces, along the grooves 40 a and 40 b, not arranged at the circumferential positions of the housing screws 50, but at circumferential positions between these connecting elements.
  • the discharge channels 27 and 37 extend radially from the grooves 40a and 40b to the outer radial edge of that housing part 20 or 30, from which they are excluded, and thus provide a connection to Environment of the compressor 11 under ambient pressure ago, to the pressurized medium E from the pressure chamber of the compressor 13 via the gap 31, the grooves 40a and 40b and the discharge channels 27 and 37 can be removed.
  • one or more pairs of relief channels 27 and 37 are provided;
  • one or more relief channels 27 and / or 37 may be provided independently of each other at arbitrary locations in the periphery of the respective sealing surface 25 and / or 35.
  • Fig. 6 shows a further exemplary embodiment of a compressor 10 according to the invention with relief groove at maximum pressure.
  • the design shown here differs from the ones in 4 and FIG. 5 shown embodiments by arrangement and design of the discharge channels.
  • the Fig. 6 shown embodiment provides one or more discharge channels 27 and / or 37 at the circumferential positions of housing screws 50.
  • the relief channels 27 and / or 37 extend radially from the grooves 40a and 40b to the radial position of the respective screw through bore 32.
  • one or more relief bores 38 are provided in the housing cover 30 extending radially from a screw through bore 32 to the periphery 11 of the Compressor 10 extend.
  • the relief holes 38 are not arranged in the sealing surface of the housing cover, ie on the surface of the housing cover, but completely within the limits of the volume of the housing cover 30.
  • Pressurized medium E which escapes at maximum pressure from the pressure chamber 13 of the compressor 10, so can collect in the grooves 40a and 40b and is then on the discharge channels 27 and / or 37, via corresponding screw holes 32 and relief holes 38 in the environment 11 of Compressor 10 discharged. If this path of the pressurized medium E to be discharged is to be ensured, the pressure-chamber-remote part of the screw through-holes 32 must be closed impermeable to the pressurized medium beyond the screw-axial position of the relief bore 38 in the housing cover.
  • the housing cover 30 has one or more partially closed steren pengangsbohronne 33.
  • Fig. 7a shows a radial pressure curve in the sealing surface between two housing parts of a compressor 10 according to the prior art at operating pressure.
  • the sealing surface 135 the housing cover 30 and the sealing surface 125 of the housing 20 are at operating pressure on each other.
  • the radial pressure curve in the sealing surface at operating pressure G BS decreases over the entire sealing surface radially from the inside to the outside, wherein at the radially inner edge of the sealing surfaces of the full operating pressure in the pressure chamber 12 is applied, and at the outer radial edge of the sealing surfaces of the ambient pressure of the environment 11 is applied ,
  • Fig. 7b shows the radial pressure curve in the sealing surface between two housing parts of a compressor 10 according to the prior art at maximum pressure.
  • the sealing surface 135 of the housing cover 30 and the sealing surface 125 of the housing 20 gap apart at an acute angle, whereby the gap 31 is formed.
  • the full maximum pressure of the pressure chamber 13 bears against the sealing surfaces. Only in the outer radial edge region of the sealing surfaces up to the outer edge of the sealing surfaces of the radial pressure curve G HS idealized in the sealing surface at maximum pressure a linearly decreasing course up to the environment 11 of the compressor 10 under ambient pressure.
  • Fig. 7c shows the radial pressure curves in the sealing surfaces 25 and 35 between two housing parts 20 and 30 of a compressor 10 according to the invention at operating pressure and maximum pressure.
  • the sealing surface 25 of the housing 20 and the sealing surface 35 of the housing cover 30 each have a circumferentially extending groove 40a and 40b.
  • the radial pressure curves in the sealing surface at operating pressure G BE and at maximum pressure G HE are in contrast to the corresponding pressure curves in a compressor according to the prior art radially to the area between the inner radial edge of the sealing surfaces and the radial position of the grooves 40 a and 40 b limited.
  • the ambient pressure of the environment 11 is applied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (13)

  1. Compresseur (10) doté d'une chambre de pression (12; 13), qui est délimitée par au moins deux parties de boîtier (20; 30), en particulier destiné à une utilisation dans une installation de climatisation d'un véhicule automobile,
    dans lequel les parties de boîtier (20; 30) présentent des faces d'étanchéité (25; 35), qui sont reliées au moyen d'un dispositif de liaison, qui applique une force de pression entre les faces d'étanchéité (25; 35),
    caractérisé en ce que
    au moins une rainure (40a; 40b) s'étendant en direction périphérique est disposée sur au moins une face d'étanchéité (25; 35) d'au moins une partie de boîtier (20; 30), et
    au moins une ouverture de détente est disposée sur au moins une des parties de boîtier (20; 30), et relie la rainure (40a; 40b) à l'environnement (11) du compresseur,
    dans lequel ladite au moins une ouverture de détente part de la rainure s'étendant en direction périphérique (40a; 40b), et
    dans lequel la rainure (40a; 40b) est disposée de telle manière que, lors d'un dépassement d'une pression maximale prédéterminée dans la chambre de pression (13), un fluide créant la pression (E) puisse s'accumuler dans la rainure (40a; 40b) et s'échapper au moins en partie par l'ouverture de détente, et
    dans lequel les éléments de liaison d'un dispositif de liaison du compresseur (10) peuvent se dilater sous l'effet d'une pression, dans lequel les faces d'étanchéité (25; 35) peuvent s'écarter l'une de l'autre sur leur côté tourné vers la chambre de pression (13), afin de détendre ainsi la pression dans la rainure.
  2. Compresseur (10) selon la revendication 1, caractérisé en ce que le dispositif de liaison présente plusieurs éléments de liaison (50).
  3. Compresseur (10) selon la revendication 2, caractérisé en ce que ces éléments de liaison (50) passent à travers des évidements (21; 32) dans les faces d'étanchéité (25; 35) des parties de boîtier à relier (20; 30).
  4. Compresseur (10) selon la revendication 3, caractérisé en ce que ces évidements (21; 32) sont disposés essentiellement à des distances égales du contour de bord de la face d'étanchéité (25; 35), qui est tournée vers la chambre de pression (12; 13).
  5. Compresseur (10) selon la revendication 4, caractérisé en ce que la rainure s'étendant en direction périphérique (40a; 40b) présente, par rapport aux évidements (21; 32) pour les éléments de liaison (50), une distance plus grande ou plus petite ou essentiellement identique de la chambre de pression (12; 13).
  6. Compresseur (10) selon la revendication 4, caractérisé en ce que la rainure s'étendant en direction périphérique (40a; 40b) présente, par rapport aux évidements (21; 32) pour les éléments de liaison (50), une distance variable de la chambre de pression (12; 13).
  7. Compresseur (10) selon l'une quelconque des revendications 3 à 6, caractérisé en ce que les éléments de liaison (50) du dispositif de liaison sont réalisés en forme de vis ou de boulons et sont menés à travers des trous de passage (32) dans au moins une partie de boîtier (20; 30), qui débouchent dans les évidements dans les faces d'étanchéité (25; 35).
  8. Compresseur (10) selon l'une quelconque des revendications 3 à 7, caractérisé en ce que l'ouverture de détente présente au moins un canal de détente (27; 37) dans au moins une face d'étanchéité (25; 35) d'une partie de boîtier (20; 30), dans lequel ce canal de détente (37) s'étend depuis la rainure s'étendant en direction périphérique (40a; 40b) jusqu'à l'environnement (11) du compresseur (10).
  9. Compresseur (10) selon l'une quelconque des revendications 3 à 7, caractérisé en ce que l'ouverture de détente présente au moins un canal de détente (27; 37), dans lequel ce canal de détente (27; 37) s'étend depuis la rainure s'étendant en direction périphérique (40a; 40b) jusqu'à un évidement (21; 32) pour un élément de liaison (50), et dans lequel du fluide créant la pression (E) peut s'échapper par au moins un évidement (21; 32) pour des éléments de liaison (50).
  10. Compresseur (10) selon une des revendications 8 ou 9, caractérisé en ce qu'au moins un canal de détente (27; 37) est formé dans au moins une des faces d'étanchéité (25; 35).
  11. Compresseur (10) selon l'une quelconque des revendications 2 à 10, caractérisé en ce qu'au moins un des éléments de liaison (50) est configuré et disposé de telle manière que le fluide (E) accumulé dans la rainure s'étendant en direction périphérique (40a; 40b) puisse s'échapper dans l'environnement (11) du compresseur (10).
  12. Compresseur (10) selon l'une quelconque des revendications 8 à 11, caractérisé en ce que l'ouverture de détente présente au moins un trou de détente (38), qui s'étend depuis au moins un des trous de passage (32) d'au moins une des parties de boîtier (20; 30) jusqu'à l'environnement (11) du compresseur (10), dans lequel le trou de détente (38) est espacé de la face d'étanchéité (25; 35) de la partie de boîtier (20; 30).
  13. Compresseur (10) selon l'une quelconque des revendications 4 ou 6 à 12, caractérisé en ce qu'au moins un élément d'étanchéité est disposé dans au moins une rainure s'étendant en direction périphérique (40a; 40b).
EP12773223.8A 2011-10-05 2012-09-26 Compresseur doté d'une rainure de décompression Active EP2764248B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011114904A DE102011114904A1 (de) 2011-10-05 2011-10-05 Verdichter mit Druckentlastungsnut
PCT/EP2012/004039 WO2013050114A2 (fr) 2011-10-05 2012-09-26 Compresseur doté d'une rainure de décompression

Publications (2)

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EP2764248A2 EP2764248A2 (fr) 2014-08-13
EP2764248B1 true EP2764248B1 (fr) 2019-03-06

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EP12773223.8A Active EP2764248B1 (fr) 2011-10-05 2012-09-26 Compresseur doté d'une rainure de décompression

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US (2) US9273590B2 (fr)
EP (1) EP2764248B1 (fr)
KR (1) KR20140105434A (fr)
CN (1) CN103842653B (fr)
DE (2) DE102011114904A1 (fr)
WO (1) WO2013050114A2 (fr)

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Also Published As

Publication number Publication date
CN103842653B (zh) 2016-09-14
WO2013050114A2 (fr) 2013-04-11
DE102011114904A1 (de) 2013-04-11
KR20140105434A (ko) 2014-09-01
US20140196683A1 (en) 2014-07-17
US20160176266A1 (en) 2016-06-23
CN103842653A (zh) 2014-06-04
EP2764248A2 (fr) 2014-08-13
WO2013050114A3 (fr) 2013-12-19
US9273590B2 (en) 2016-03-01
US9744831B2 (en) 2017-08-29
DE112012004151A5 (de) 2014-07-10

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