EP3516234B1 - Compresseur à vis pour véhicule utilitaire - Google Patents

Compresseur à vis pour véhicule utilitaire Download PDF

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Publication number
EP3516234B1
EP3516234B1 EP17772361.6A EP17772361A EP3516234B1 EP 3516234 B1 EP3516234 B1 EP 3516234B1 EP 17772361 A EP17772361 A EP 17772361A EP 3516234 B1 EP3516234 B1 EP 3516234B1
Authority
EP
European Patent Office
Prior art keywords
oil
housing
seal
screw compressor
air
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
EP17772361.6A
Other languages
German (de)
English (en)
Other versions
EP3516234A1 (fr
Inventor
Gilles Hebrard
Jean-Baptiste Marescot
Jörg MELLAR
Thomas Weinhold
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.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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Publication of EP3516234A1 publication Critical patent/EP3516234A1/fr
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Publication of EP3516234B1 publication Critical patent/EP3516234B1/fr
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Anticipated expiration legal-status Critical

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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
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C29/026—Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/007—General arrangements of parts; Frames and supporting elements
    • 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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C29/04—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
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1005—Air
    • 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
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • F04C2210/221—Air
    • 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
    • F04C2220/00—Application
    • F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals
    • 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
    • F04C2240/809—Lubricant sump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/57—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/98—Lubrication

Definitions

  • the present invention relates to a screw compressor for a utility vehicle with at least one housing, with at least one housing cover and at least one seal.
  • Screw compressors for commercial vehicles are already known from the prior art. Such screw compressors are used to provide the necessary compressed air for example for the braking system of the commercial vehicle.
  • oil-filled compressors in particular also screw compressors, are known in which the task is to regulate the oil temperature.
  • This is usually achieved by having an external oil cooler that is connected to the oil-filled compressor and the oil circuit via a thermostatic valve.
  • the oil cooler is a heat exchanger which has two separate circuits, the first circuit being provided for the hot liquid, that is to say the compressor oil, and the second being provided for the cooling liquid.
  • air, water mixtures with an antifreeze or another oil can be used as the cooling liquid.
  • This oil cooler must then be connected to the compressor oil circuit via pipes or hoses and the oil circuit must be secured against leaks.
  • This external volume must also be filled with oil, so that the total amount of oil is also increased. This increases the system inertia.
  • the oil cooler must be housed and fastened mechanically, either by means of brackets located around it or by a separate bracket, which requires additional fastening means, but also installation space.
  • a screw compressor with the features of claim 1.
  • a screw compressor for a commercial vehicle is provided with at least one housing with at least one housing cover and with at least one rotor housing and with at least one seal, in the assembled state an oil sump is present in the housing, the seal being arranged between the housing cover and the rotor housing and protruding from the oil sump in relation to the assembled state, the seal being designed as a sealing plate and having several passage openings.
  • the housing can be designed in two parts or in several parts.
  • the multi-part structure is produced in particular in that the housing is assembled from a housing cover and a rotor housing.
  • the invention is based on the basic idea that in an oil-filled screw compressor with an oil sump above the oil sump, small oil droplets, oil aerosols or an oil vapor are present and that parts of the oil get into certain areas of the housing as a result.
  • the design of the sealing plate the protrudes from the oil sump, achieves that although oil can still get into all areas of the housing inside the screw compressor, this displacement of oil is limited by small oil droplets, oil vapors or oil aerosols through the seal and the passage openings of the seal.
  • the seal provides a type of oil trap located inside the housing, where oil can only pass through the openings and, moreover, the small oil droplets and oil aerosols can accumulate and deposit on the sealing plate. From there they can then flow back into the oil sump.
  • the seal asymmetrically divides the interior of the housing into at least one first area and at least one second area, the first area being smaller than the second area. In this way, it can be achieved, for example, that certain areas that are to be supplied more strongly with small oil droplets and with oil aerosols or oil vapors are better reached and the first area, which is smaller than the second area, is less with small oil droplets and with Oil aerosols or oil vapors are supplied.
  • the screw compressor can have an air-oil separator and an air-oil separator inlet, the air-oil separator inlet opening into the housing interior of the screw compressor and the passage openings of the seal being arranged in the vicinity of the air-oil separator inlet.
  • This makes it possible to make the air oil separator comparatively smaller.
  • the air-oil separator inlet is formed in the housing cover. This makes it easier to manufacture the air oil separator inlet.
  • the arrangement of the air-oil separator inlet and the seal, which is located between the rotor housing and the housing cover in the assembled state, can also be adjusted in a comparatively simple manner.
  • the air oil separator inlet opens into the first area of the interior of the housing.
  • the oil separator inlet opens into the area of the housing interior, which is designed to be smaller than the second area, the first and second areas being separated from one another by the seal.
  • the seal is arranged essentially vertically in relation to the assembled state with an essentially horizontal alignment of the screw compressor and with an essentially horizontal alignment of the oil sump. This makes it possible to simplify the return of the oil caught on the seal to the oil sump. As a result of gravity, this can simply flow back into the oil sump.
  • the passage openings can be designed essentially round, in particular circular. This design of the passage openings enables simple manufacture and manufacture of the seal. However, any other shape of the passage openings is also possible in this context. This can result in further advantages, for example that the limitation of the displacement of oil by small oil droplets, oil vapors or oil aerosols is improved.
  • the seal is designed as a perforated plate, at least in some areas with the area located inside the housing in the assembled state. This enables simple manufacture and manufacture of the seal. The stability of the seal can also be influenced and made positive in this way. A uniform arrangement of the holes in the areas in which the seal is designed as a perforated plate makes it possible to provide a good area of passage openings without weakening the seal as a whole.
  • the seal can also have a baffle passage opening.
  • the baffle plate passage opening is designed in such a way that, in the assembled state, it is located approximately at the level of the surface of the oil sump.
  • the baffle plate and the seal can be arranged essentially perpendicular to one another. The formation of the baffle passage opening enables a simple design and assembly of the seal and baffle plate.
  • baffle makes it possible to keep essential parts of the oil sump in the lower-lying areas of the screw compressor, even when the screw compressor is in operation and especially when the utility vehicle is being driven, and not to have to compensate for the oil sloshing back and forth.
  • the seal can have screw bolt through openings which are provided for the passage of screw bolts, by means of which the seal, housing cover and rotor housing are screwed together. This enables a simple, safe and reliable assembly of the seal between the housing cover and the rotor housing.
  • Fig. 1 shows a schematic sectional view of a screw compressor 10 in the sense of an exemplary embodiment of the present invention.
  • the screw compressor 10 has a fastening flange 12 for the mechanical fastening of the screw compressor 10 to an electric motor not shown in detail here.
  • the screw 18 meshes with the screw 16 and is driven by this.
  • the screw compressor 10 has a housing 20 in which the essential components of the screw compressor 10 are accommodated.
  • the housing 20 is filled with oil 22.
  • an inlet connector 24 is provided on the housing 20 of the screw compressor 10.
  • the inlet connector 24 is designed in such a way that an air filter 26 is arranged on it.
  • an air inlet 28 is provided radially on the air inlet connector 24.
  • a spring-loaded valve insert 30 is provided, designed here as an axial seal.
  • This valve insert 30 serves as a check valve.
  • An air supply channel 32 is provided downstream of the valve insert 30 and supplies the air to the two screws 16, 18.
  • an air outlet pipe 34 with a riser 36 is provided on the outlet side of the two screws 16, 18.
  • a temperature sensor 38 is provided, by means of which the oil temperature can be monitored.
  • a holder 40 for an air oil separator 42 is also provided in the air outlet area.
  • the holder 40 for the air oil separator 42 has in the assembled state in the area facing the floor (as also in FIG Fig. 1 shown) the air oil separator 42.
  • the holder 40 for the air oil separator 42 has an air outlet opening 46, which lead to a check valve 48 and a minimum pressure valve 50.
  • the check valve 48 and the minimum pressure valve 50 can also be formed in a common, combined valve.
  • the air outlet 51 is provided downstream of the check valve 48.
  • the air outlet 51 is usually connected to correspondingly known compressed air consumers.
  • a riser 52 is provided which has a filter and check valve 54 at the exit of the holder 40 for the air oil separator 42 when it passes into the housing 20.
  • a nozzle 56 is provided in a housing bore downstream of the filter and check valve 54.
  • the oil return line 58 leads back approximately to the middle area of the screw 16 or the screw 18 in order to supply oil 22 again.
  • An oil drain plug 59 is provided in the bottom area of the housing 20 in the assembled state. A corresponding oil drain opening through which the oil 22 can be drained can be opened via the oil drain screw 59.
  • the housing 20 In the lower area of the housing 20 there is also the extension 60 to which the oil filter 62 is attached.
  • the oil 22 is first fed to a thermostatic valve 66 via an oil filter inlet channel 64 which is arranged in the housing 20.
  • thermostat valve 66 a control and / or regulating device can be provided, by means of which the oil temperature of the oil 22 located in the housing 20 can be monitored and adjusted to a target value.
  • a nozzle 72 is also provided, which is provided in the housing 20 in connection with the return line 68.
  • the cooler 74 is connected to the extension 60.
  • a safety valve 76 In the upper area of the housing 20 (in relation to the assembled state) there is a safety valve 76, via which an excessive pressure in the housing 20 can be reduced.
  • a bypass line 78 which leads to a relief valve 80, is located upstream of the minimum pressure valve 50. Air can be fed back into the area of the air inlet 28 via this relief valve 80, which is controlled by means of a connection to the air supply 32.
  • a vent valve (not shown in more detail) and also a nozzle (diameter reduction of the supply line) can be provided in this area.
  • an oil level sensor 82 can be provided approximately at the level of the line 34 in the outer wall of the housing 20.
  • This oil level sensor 82 can, for example, be an optical sensor and can be designed and set up in such a way that the sensor signal can be used to identify whether the oil level is above the oil level sensor 82 during operation or whether the oil level sensor 82 is exposed and the oil level has fallen accordingly as a result.
  • an alarm unit can also be provided which outputs or forwards a corresponding error message or warning message to the user of the system.
  • the function of the in Fig. 1 shown screw compressor 10 is as follows: Air is supplied via the air inlet 28 and reaches the screws 16, 18 via the check valve 30, where the air is compressed. The compressed air-oil mixture, which rises with a factor of between 5 and 16-fold compression according to the screws 16 and 18 through the outlet line 34 via the riser pipe 36, is blown directly onto the temperature sensor 38.
  • the air which still partially carries oil particles, is then guided via the holder 40 into the air-oil separator 42 and, if the corresponding minimum pressure is reached, passes into the air outlet line 51.
  • the oil 22 located in the housing 20 is kept at operating temperature via the oil filter 62 and possibly via the heat exchanger 74.
  • the heat exchanger 74 is not used and is also not switched on.
  • the corresponding connection takes place via the thermostatic valve 68.
  • oil is fed to the screw 18 or the screw 16, but also to the bearing 72 via the line 68.
  • the screw 16 or the screw 18 is supplied with oil 22 via the return line 52, 58; the oil 22 is purified here in the air-oil separator 42.
  • the screws 16 and 18 of the screw compressor 10 are driven via the electric motor, not shown in detail, which transmits its torque via the shaft 14 to the screw 16, which in turn meshes with the shaft 18.
  • the relief valve 80 ensures that in the area of the supply line 32, the high pressure that prevails in the operating state, for example on the outlet side of the screws 16, 18, cannot be locked in, but that in the area of the supply line 32, especially when the compressor starts up, always a low inlet pressure, especially atmospheric pressure, exists. Otherwise, when the compressor starts up, a very high pressure would initially arise on the output side of the screws 16 and 18, which would overload the drive motor.
  • FIG. 2 shows in a perspective, schematic representation the screw compressor 10 according to FIG Fig. 1 in a sectional view with a view of the interior of the housing 20 of the screw compressor 10.
  • a baffle plate 100 is arranged in the interior of the housing 20 and is located essentially at the level of the upper level of the oil sump of the oil 22. It is based on the assembled state and a horizontal arrangement of the upper level of the oil sump.
  • the housing 20 has a housing cover 20b and a rotor housing 20a.
  • An air-oil separator inlet 102 which is connected to the air-oil separator 42, is located in the housing cover 20b.
  • a seal 104 is provided between the housing cover 20b and the rotor housing 20a, which is circumferentially guided between the edges of the housing cover 20b and rotor housing 20a in the assembled state and is clamped and screwed sealingly between them.
  • the seal 104 has screw bolt through openings 106 through which the corresponding screw connections can be passed by means of screw bolts, so that the seal 104, housing cover 20b and rotor housing 20a can be screwed together or are screwed together in the assembled state.
  • the seal 104 is arranged between the housing cover 20b and the rotor housing 20a and protrudes from the oil sump of the oil 22.
  • the seal 104 is designed as a sealing plate and has a plurality of passage openings 108.
  • the passage openings 108 are circular and are regularly offset from one another in the manner of a perforated plate in the area of the seal 104 located above the oil sump.
  • the seal 104 divides the interior of the housing asymmetrically into at least one first area B1, which essentially relates to the inner areas of the housing cover 20b, and a second area B2, which essentially relates to the interior of the rotor housing, housing cover 20a.
  • the first area B1 is smaller than the second area B2.
  • the air-oil separator inlet 102 opens into the first region B1 and is located in the vicinity of the passage openings 108 of the seal 104.
  • the seal 104 is arranged vertically in relation to the installed state when the screw compressor 10 is oriented essentially horizontally and the oil sump of the oil 22 is oriented essentially horizontally.
  • seal 104 has a passage opening 110 for the baffle 100 at the level of the upper level of the oil sump of the oil 22.
  • the function of the seal 104 and its passage openings 108 can be described as follows: In operation, the screws 16 and 18 are lubricated by pressurized oil from the oil 22 from the oil sump, so that oil vapors are present above the upper level of the oil sump. Further movements of the oil are forced by the driving movements of the utility vehicle, so that the movement of the oil 22 and the possibilities of movement of the oil 22 are restricted by means of the baffle plate 100 and also the seal 104. At the same time, however, through the passage openings 108 both in the baffle plate 100 as well as in the seal 104 achieves that sufficient oil 22 in the form of oil vapors, oil aerosols or small droplets can reach all areas of the screw compressor 10.
  • the entry of oil into the air-oil separator inlet 102 is reduced. This takes place through the passage openings 108 of the seal 104, since less oil 22 can reach the air-oil separator inlet 102 due to the perforated plate-like structure of the seal 104. As a result, the entry of oil into the air oil separator 42 is reduced.

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

Claims (10)

  1. Compresseur (10) à vis d'un véhicule utilitaire, comprenant au moins une enveloppe (20) ayant au moins un couvercle (20b) d'enveloppe et comprenant au moins une enveloppe (20a) de rotor et comprenant au moins une étanchéité (104), dans lequel à l'état monté dans l'enveloppe (20) il y a un puisard d'huile, dans lequel, rapporté à l'état monté, l'étanchéité (104) est disposée entre le couvercle (20b) de l'enveloppe et l'enveloppe (20a) du rotor et est en saillie du puisard d'huile,
    caractérisé en ce que
    l'étanchéité (104) est constituée sous la forme d'une plaque étanche et a plusieurs ouvertures (108, 110) de passage, dans lequel l'étanchéité (104) est telle qu'elle donne une sorte de piège à huile, qui se trouve à l'intérieur de l'enveloppe, où un passage de l'huile n'est rendu possible que par les ouvertures de passage et des gouttes d'huile et des aérosols d'huile peuvent s'accumuler et se déposer sur la plaque étanche.
  2. Compresseur (10) à vis suivant la revendication 1,
    caractérisé en ce que
    l'étanchéité (104) subdivise l'intérieur de l'enveloppe dissymétriquement en au moins une première partie (B1) et en au moins une deuxième partie (B2), la première partie (B1) étant plus petite que la deuxième partie (B2).
  3. Compresseur (10) à vis suivant la revendication 1 ou revendication 2,
    caractérisé en ce que
    le compresseur (10) à vis a un séparateur (42) de l'air et de l'huile et une arrivée (102) de séparateur d'air et d'huile, l'arrivée (102 de séparateur d'air et d'huile débouchant à l'intérieur de l'enveloppe du compresseur (10) à vis et les ouvertures (108, 110) de passage de l'étanchéité (104) étant disposées à proximité de l'arrivée (112) du séparateur d'air et d'huile.
  4. Compresseur (10) à vis suivant la revendication 3,
    caractérisé en ce que
    l'arrivée (102) du séparateur d'air et d'huile est constituée dans le couvercle (20) de l'enveloppe.
  5. Compresseur (10) à vis suivant la revendication 2 et l'une des revendications 3 ou 4,
    caractérisé en ce que
    l'arrivée (102) du séparateur d'air et d'huile débouche sur la première partie (B1) de l'intérieur de l'enveloppe.
  6. Compresseur (10) à vis suivant l'une des revendications précédentes,
    caractérisé en ce que
    rapporté à l'état monté, pour une orientation sensiblement horizontale du compresseur (10) à vis et pour une orientation sensiblement horizontale du puisard d'huile, l'étanchéité (104) est sensiblement verticale.
  7. Compresseur (10) à vis suivant l'une des revendications précédentes,
    caractérisé en ce que
    les ouvertures (108) de passage sont sensiblement arrondies en étant notamment circulaires.
  8. Compresseur (10) à vis suivant l'une des revendications précédentes,
    caractérisé en ce que
    l'étanchéité (104) est (constituée au moins par endroit en ayant la partie se trouvant à l'intérieur de l'enveloppe à l'état monté sous la forme d'une plaque perforée.
  9. Compresseur (10) à vis suivant l'une des revendications précédentes,
    caractérisé en ce que
    l'étanchéité (104) a une ouverture de passage en brise-flot.
  10. Compresseur (10) à vis suivant l'une des revendications précédentes,
    caractérisé en ce que
    l'étanchéité (104) a des ouvertures (106) de passage en boulon de vissage, qui sont prévues pour le passage de boulons de vissage, au moyen desquels l'étanchéité (104), le couvercle (20b) de l'enveloppe et le couvercle (20a) du rotor sont vissés entre eux.
EP17772361.6A 2016-09-21 2017-09-19 Compresseur à vis pour véhicule utilitaire Active EP3516234B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016011394.4A DE102016011394A1 (de) 2016-09-21 2016-09-21 Schraubenkompressor für ein Nutzfahrzeug
PCT/EP2017/073546 WO2018054862A1 (fr) 2016-09-21 2017-09-19 Compresseur à vis pour véhicule utilitaire

Publications (2)

Publication Number Publication Date
EP3516234A1 EP3516234A1 (fr) 2019-07-31
EP3516234B1 true EP3516234B1 (fr) 2021-07-07

Family

ID=59966726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17772361.6A Active EP3516234B1 (fr) 2016-09-21 2017-09-19 Compresseur à vis pour véhicule utilitaire

Country Status (8)

Country Link
US (1) US11359630B2 (fr)
EP (1) EP3516234B1 (fr)
JP (1) JP6738494B2 (fr)
KR (1) KR102228032B1 (fr)
CN (1) CN109906317B (fr)
BR (1) BR112019005068A2 (fr)
DE (1) DE102016011394A1 (fr)
WO (1) WO2018054862A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11085448B2 (en) * 2017-04-21 2021-08-10 Atlas Copco Airpower, Naamloze Vennootschap Oil circuit, oil-free compressor provided with such oil circuit and a method to control lubrication and/or cooling of such oil-free compressor via such oil circuit
BE1026195B1 (nl) 2018-04-11 2019-11-12 Atlas Copco Airpower Naamloze Vennootschap Vloeistof geïnjecteerde compressorinrichting
US11767837B2 (en) * 2019-11-14 2023-09-26 Vanair Manufacturing, Inc. Compressor control systems and air compressor systems and vehicles equipped therewith

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776668A (en) 1972-02-18 1973-12-04 Borg Warner Oil separator for refrigeration compressor
US4478054A (en) 1983-07-12 1984-10-23 Dunham-Bush, Inc. Helical screw rotary compressor for air conditioning system having improved oil management
US4780061A (en) 1987-08-06 1988-10-25 American Standard Inc. Screw compressor with integral oil cooling
JPH04279786A (ja) * 1991-03-06 1992-10-05 Toyota Autom Loom Works Ltd スクロール型圧縮機
US5246357A (en) 1992-07-27 1993-09-21 Westinghouse Electric Corp. Screw compressor with oil-gas separation means
IT1309299B1 (it) * 1999-06-23 2002-01-22 Samputensili Spa Compressore rotativo a vite per gas refrigerante da utilizzare in unimpianto di condizionamento o refrigerazione di piccola potenza.
DE19963172A1 (de) 1999-12-27 2001-06-28 Leybold Vakuum Gmbh Schraubenpumpe mit einem Kühlmittelkreislauf
KR100318418B1 (ko) * 1999-12-30 2001-12-22 신영주 압축기 내장형 오일분리기
JP2003269356A (ja) 2002-03-18 2003-09-25 Sanyo Electric Co Ltd 横型ロータリコンプレッサ
US7234926B2 (en) * 2004-10-15 2007-06-26 Ingersoll-Rand Company Air compressor assembly
US7891955B2 (en) * 2007-02-22 2011-02-22 Vilter Manufacturing Llc Compressor having a dual slide valve assembly
EP2538118B1 (fr) 2011-06-20 2015-02-25 Turner Powertrain Systems Limited Réservoir subdivisé de boîte de vitesses et méthode de contrôle du flux de lubrifiant
CN103410729B (zh) * 2013-08-26 2015-07-01 天津商业大学 卧式全封闭双级螺杆制冷压缩机
CN105443742B (zh) 2016-01-26 2017-09-05 安徽江淮汽车集团股份有限公司 一种纵置变速器

Also Published As

Publication number Publication date
US20190390673A1 (en) 2019-12-26
DE102016011394A1 (de) 2018-03-22
WO2018054862A1 (fr) 2018-03-29
BR112019005068A2 (pt) 2019-06-04
US11359630B2 (en) 2022-06-14
JP2019529799A (ja) 2019-10-17
JP6738494B2 (ja) 2020-08-12
CN109906317B (zh) 2020-12-08
EP3516234A1 (fr) 2019-07-31
KR102228032B1 (ko) 2021-03-15
CN109906317A (zh) 2019-06-18
KR20190045937A (ko) 2019-05-03

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