EP2300714A1 - Dispositif pour faire fonctionner un groupe auxiliaire d un véhicule à moteur, en particulier d un véhicule utilitaire - Google Patents

Dispositif pour faire fonctionner un groupe auxiliaire d un véhicule à moteur, en particulier d un véhicule utilitaire

Info

Publication number
EP2300714A1
EP2300714A1 EP09753571A EP09753571A EP2300714A1 EP 2300714 A1 EP2300714 A1 EP 2300714A1 EP 09753571 A EP09753571 A EP 09753571A EP 09753571 A EP09753571 A EP 09753571A EP 2300714 A1 EP2300714 A1 EP 2300714A1
Authority
EP
European Patent Office
Prior art keywords
drive unit
unit
housing
shaft
vehicle
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.)
Withdrawn
Application number
EP09753571A
Other languages
German (de)
English (en)
Inventor
Steffen Jordan
Christoph Wilken
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.)
ZF CV Systems Hannover GmbH
Original Assignee
Wabco 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 Wabco GmbH filed Critical Wabco GmbH
Publication of EP2300714A1 publication Critical patent/EP2300714A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/06Cooling; Heating; Prevention of freezing
    • F04B39/064Cooling by a cooling jacket in the pump casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections

Definitions

  • the present invention relates to a device for operating a housing comprising an auxiliary unit of a vehicle, in particular a utility vehicle, comprising a further housing comprehensive drive unit for providing a torque, a shaft for transmitting the torque from the drive unit to the auxiliary unit, and a vehicle which Such a device comprises.
  • Such devices are known from the prior art and are used very frequently for the operation of auxiliary equipment in vehicles of all kinds.
  • a torque must be introduced from the drive unit in these auxiliary units, so that they can be operated.
  • the torque is introduced in most cases by means of a rotatably mounted shaft in the auxiliary unit, wherein the shaft is connected via a coupling with a drive unit.
  • It can clutches of all kinds are used, such as torsionally rigid, elastic or switchable couplings.
  • the couplings have various disadvantages, for example, switchable couplings tend to wear, so they must be replaced regularly, thereby increasing the operating costs of the device and failures can occur unforeseen.
  • torsionally rigid couplings are the means of choice, as they are simple and reliable.
  • two shafts are connected by means of flanges using screws.
  • the flange images of the two flanges are the same, so that they can be connected together using the screws.
  • Object of the present invention is therefore to reduce the disadvantages of the prior art at least and to provide a device of the type mentioned above, with the aid of which the torque-providing drive unit can be connected faster and easier with the auxiliary unit for transmitting the torque.
  • the object is achieved by a device of the type mentioned, in which the shaft protrudes into the housing of the auxiliary unit or in the further housing of the drive unit.
  • the auxiliary unit can be configured in any conceivable form which can be driven with a torque, be configured. Since it is possible to dispense with the wear and failure-prone coupling, the operation of the device is safer and the service life is increased by the larger maintenance intervals. Furthermore, the device can be carried out space and weight-saving and produced more cheaply. Furthermore, the connection of the torque unit providing the drive unit with the auxiliary unit designed easier, since the shaft acts self-centering.
  • An advantageous embodiment of the invention is characterized in that the shaft is mounted with a first portion in the drive unit by means of bearings and a second portion of the shaft protrudes from the drive unit and projects into the housing of the drive unit and the shaft form or frictional is connected to a rotatable component of the drive unit.
  • the invention is further developed by the drive unit and the auxiliary unit are arranged directly adjacent to each other, so that little space is claimed. The drive unit and the auxiliary unit are thus combined to form a highly integrated device.
  • a preferred further development of the invention is characterized in that the rotatable component is supported by the second section and the bearings arranged in the housing of the drive unit.
  • the bearing of the rotating component is taken over by the shaft and the bearings, which is particularly advantageous because bearings require space, on the other hand also tend to wear and must be replaced regularly. Furthermore, reducing the number of bearings reduces the probability of failure.
  • Separate lubricant circuits for lubricating the bearings may be omitted in the drive unit including the rotating member, so that the structure can be simplified. By reducing the number of components and simplifying the structure, the device can be made more cost-effective and safer to operate. The maintenance intervals are significantly reduced.
  • the device according to the invention which further comprises a lubricant conveying means for conveying a lubricant to and in a lubricant circuit, is further developed in that the lubricant conveying means is drivable by means of the shaft.
  • An additional drive unit or drive trains or gearbox are superfluous, whereby the device according to the invention can be made simple and inexpensive and their reliability can be increased.
  • a preferred embodiment is characterized in that characterized in that characterized in that characterized in that characterized in that the conveying means is designed as a pump, in particular as a gear pump or screw pump. Pumps are the means of choice for conveying the lubricant, are easy to obtain and are characterized by high reliability. Gear pumps and screw pumps have the advantage of a pulsation-free promotion. In particular, in screw pumps, the promotion can be realized at a high smoothness and high speeds, while gear pumps are preferably used when the lubricant has a high viscosity.
  • the invention is further developed by a Vorhalteabêt for storing and maintaining the lubricant. This Vorhalteabêt may be a tank or a reservoir.
  • a bayonet closure is used for connecting and centering the drive unit with the auxiliary unit.
  • the drive unit and the auxiliary unit can be quickly and easily connected to each other and separated, without the need for special tools. Furthermore, it is possible without great manufacturing effort, by means of a recess, into which projects a corresponding projection, to effect a centering when connecting the drive unit to the auxiliary unit.
  • This embodiment of the present invention is particularly suitable for space-constrained installation environments in which tools can be used poorly.
  • the invention is further developed by a flange unit for connecting the drive unit to the auxiliary unit.
  • a flange unit for connecting the drive unit to the auxiliary unit.
  • Such Flan units for connecting the drive unit to the auxiliary unit are easy to manufacture and are characterized by a high level of reliability. It is also advantageous if the flange unit centers the drive unit and the auxiliary unit relative to one another. This centering effect is also easy to realize in terms of manufacturing technology, for example by recesses engaging in the corresponding projection.
  • the essential dimensions of the flange are mentioned, such as the outer diameter, the centering diameter, the pitch circle diameter and the number of holes for passing the screws. It is expedient to carry out the flange according to the standard regulations.
  • the device can be used to connect many drive units, even if the drive units come from other manufacturers.
  • the field of application of the device is therefore expanded and the sales markets increased.
  • customer-specific flanges so that the corresponding customers, for example, their own drive units or auxiliary units that do not have standardized or standard flange connections can use.
  • the size of the compressor can be selected without considerable effort so that it corresponds to the individual customer requirements.
  • the drive unit is connected to the auxiliary unit by means of the shaft.
  • the rotatable component is pressed onto the shaft or screwed to the shaft.
  • the connection is made so that no further connection points need to be provided to connect the drive unit to the auxiliary unit. The number of elements necessary for connection thus reduces and the operation necessary for connection is shortened.
  • the drive unit and the auxiliary unit have a common coolant circuit for cooling the drive unit and the auxiliary unit.
  • an already existing coolant circuit of either the drive unit or the auxiliary unit of the drive unit or the auxiliary unit can be used, which (s) does not have its own coolant circuit.
  • a separate cooling, for example in the form of a blower for the drive unit or a ventilation can be omitted.
  • the drive unit is largely independent of the ambient temperatures.
  • only a refrigerant circuit needs to be controlled, whereby the structure of the device as a whole is simpler and more compact.
  • a weight saving and an increase in reliability and a simplification of spare parts storage and maintenance can be achieved by reducing the number of parts.
  • the device according to the invention is further developed in that the coolant circuit has a conveying means, in particular a pump for conveying a coolant, in particular water in the coolant circuit and a heat exchanger for removing heat from the coolant circuit.
  • a conveying means in particular a pump for conveying a coolant, in particular water in the coolant circuit
  • a heat exchanger for removing heat from the coolant circuit.
  • a preferred development is characterized in that the drive unit as an electric motor and the auxiliary unit as a compressor for generating compressed air, as an air compressor for an air conditioner for air conditioning the vehicle, or as a power steering pump for assisting the steering of the vehicle are formed, wherein the electric motor comprising the rotatable member configured as a rotor and a winding.
  • Electric motors are increasingly the driving means of choice because they deliver a constant torque in all relevant speed ranges and cause no polluting exhaust gases during operation.
  • Compressors are components that are commonly used in commercial and motor vehicles, in particular for generating compressed air.
  • Air conditioning systems and the air conditioning compressors required for this purpose are also finding widespread and increasing use in order to be able to create a workplace for the comfort requirements and in particular the drivers of commercial vehicles, which maintains its efficiency as long as possible.
  • Quite similar aspects apply to the use of power steering pumps to assist the steering of the vehicle, here in particular the commercial vehicle.
  • Using a steering aid the forces required during steering are lower and the fatigue of the driver is slowed down.
  • the electric motor is configured as an asynchronous motor or servomotor and / or has an arbitrarily locatable servo, frequency converter or inverter, in particular a multi-frequency inverter or inverter.
  • a servo, Frequenzum- or inverter is used to generate a change in amplitude and frequency voltage from a AC or three-phase voltage with a certain frequency or from a DC voltage. With this converted voltage then the consumer, operated in this case, the electric motor and thus the speed of the electric motor continuously variable.
  • the servo, frequency converter or inverter can be placed anywhere in the vehicle, which can be chosen to provide the best environmental conditions for operation. In particular, it does not have to be arranged directly on the electric motor.
  • the connection between the electric motor and the inverter or inverter is realized via an electrically conductive cable.
  • a multi-frequency converter a plurality of electric motors, for example, an electric motor for the compressor and another for the drive of other auxiliary units, can be controlled independently with one component, so that does not have to be installed for each existing in the vehicle electric motor own frequency converter. This simplifies installation and reduces space requirements. Furthermore, the use of a multi-frequency converter is cheaper. Electric motors are often designed as asynchronous motors because they are maintenance-free and robust.
  • the device according to the invention is further developed in that the compressor is designed as a piston compressor with a crankshaft.
  • the necessary compression of the air from atmospheric pressure to the operating pressure which is usually between 12 and 12.5 bar, can be carried out in one stage with reciprocating compressors, which allows a more compact design compared to two-stage oil-free screw compressors.
  • single-acting piston compressors are cheaper to buy and have further advantages over screw compressors.
  • a particularly preferred development of the present invention is characterized in that the housing and the further housing are integrally formed. For installation and maintenance cover can be provided at appropriate locations. Due to the one-piece design of the housing, the drive unit and the auxiliary unit no longer need to be connected by separate connection points. Furthermore, a device in which the auxiliary unit and the drive unit are highly integrated, also this embodiment makes it possible to make the housing compact and weight-saving.
  • Another aspect relates to a vehicle, in particular a commercial vehicle, which comprises a device according to the invention.
  • a vehicle in particular a commercial vehicle, which comprises a device according to the invention.
  • the above-described advantages of the device according to the invention fully apply to the vehicle comprising this device.
  • a preferred embodiment of the present invention will be explained in detail with reference to drawings. Show it:
  • Figure 1 shows the basic structure of the device according to the invention.
  • FIG. 2 an embodiment according to the invention.
  • the device 10 shown in Figure 1 comprises a drive unit 12 having a housing 14 and an auxiliary unit 16 with a further housing 18 and a rotatable member 20, wherein the drive unit 12 in the example shown as a designed in the form of an asynchronous motor 24 electric motor 22 and the auxiliary unit 16 is configured as a compressor 26, for example as a piston compressor 28.
  • the auxiliary unit 16 may be configured in any conceivable form and be drivable by the drive unit 12 by means of a torque, for example as an air compressor, air conditioning compressor 27 for air conditioning of the vehicle or as a power steering pump 29 to assist the steering of the vehicle.
  • the piston compressor 28 comprises a shaft 30, which is designed as a crankshaft 32 and supported by bearings 34, in particular rolling bearings, wherein any shape of bearings 34 can be used, which is suitable for the storage of waves.
  • the crankshaft 32 has a first portion 36 and a second portion 38.
  • the first portion 36 extends within the further housing 18 of the reciprocating compressor 28, whereas the second portion protrudes from the further housing 18.
  • the rotatable component 20 is designed as a rotor 40, which in turn is enclosed by windings 42.
  • the rotor 40 is designed so that the crankshaft 32 when connecting the induction motor 24 with the piston compressor 28 is positively or alternatively frictionally engaged with the rotor 40, so that the asynchronous motor 24 provided torque and thus the shaft power to the crankshaft 32 for driving of the reciprocating compressor 28 can be transmitted.
  • the housing 14 and the further housing 18 are arranged directly adjacent to each other, are in contact with a contact surface 44 and are fastened to each other by means of a flange unit 46 or a bayonet closure 48.
  • a flange unit 46 or a bayonet closure 48 Other suitable types of attachment may be used come.
  • the speed of the asynchronous motor 24 is controlled by means of a Frequenzum- or inverter 50.
  • the device 10 has a coolant circuit 52 with which both the piston compressor 28 and the asynchronous motor 24 are cooled.
  • the coolant circuit 52 comprises a first channel 54 in the housing 14 and a second channel 56 in the further housing 18 and a first connecting portion 58 and a second connecting portion 60, which establish communication between the first and second channels 54, 56.
  • the connecting sections 58, 60 may, as shown, run outside the piston compressor 28 and the asynchronous motor 24 and be designed as flexible hoses or in the form of only partially deformable metallic lines. Furthermore, the connecting sections can be at least partially combined to form a section.
  • the connecting portions 58, 60 within the reciprocating compressor 28 and the asynchronous motor 24 and to design so that the communication between the first channel 54 and the second channel 56 when connecting the reciprocating compressor 28 is made with the induction motor 24.
  • a delivery means 62 in particular a pump 64
  • the pump 64 is arranged in the illustrated example in the second connecting portion 60, but may also be placed in the first connecting portion 58, in the first or second channel 54, 56.
  • the device 10 comprises a heat exchanger 66, which is likewise arranged in the second connecting section 60 in the exemplary embodiment shown. Also, the heat exchanger 66 may be disposed anywhere within the coolant circuit 52.
  • FIG. 2 shows an exemplary embodiment according to the invention, in which the piston compressor 28 is connected to the asynchronous motor 24 at the contact surface 44 with the aid of the flange unit 46.
  • the crankshaft 32 has a conical portion 68, which also serves for the frictional and / or additional positive transmission of the output from the asynchronous motor 24 torque to the crankshaft 32.
  • the crankshaft 32 protrudes with its portion 38 at least partially into the rotor 40, which is enclosed by the windings 42.
  • another bearing for supporting the crankshaft that is, the portion 38 of the crankshaft 32 is provided.
  • a total of three bearings are provided for supporting the crankshaft 32. It is also conceivable for a flying mounting of the rotor 40, so that only the two bearings 34 positioned in the housing 18 support the crankshaft 32 and are "flying" on the section 38 of the crankshaft 32 projecting into the housing 14 It is also possible to store the crankshaft 38 with two bearings 34, wherein the first bearing 34 in the housing 14 and the second bearing 34 in the further housing 18 is arranged.
  • a lubricant conveying means 86 is provided, which is so connected to the crankshaft, that a torque is transferable.
  • the crankshaft 32 thus drives not only the piston compressor 28, but also the lubricant conveying means 86, which can be configured as an oil pump 90, in particular as a gear pump 92 or as a screw pump 94.
  • a lubricant preferably oil is used, which is stored in a Vorhalteisme 82 and pumped via a channel 84 from the oil pump 90 via a channel, not shown in the reciprocating compressor 28. The oil then passes through another channel, not shown, back into the Vorhalteab mustard, so that a closed lubricant circuit is formed.
  • the device comprises a pressure limiting valve, not shown, for limiting the pressure and for controlling the conveyed quantity of the lubricant and / or a pressure switch 88 and / or a level sensor, not shown, for sensing the amount of lubricant present in the device.
  • a pressure limiting valve for limiting the pressure and for controlling the conveyed quantity of the lubricant
  • a pressure switch 88 and / or a level sensor not shown, for sensing the amount of lubricant present in the device.
  • the first channel 54 of the coolant circuit 52 is arranged, wherein outside of the windings 42, a coolant housing 70 is formed.
  • the coolant housing 70 includes ribs 72 for enlarging the surface in contact with the coolant circuit 52 to improve heat transfer.
  • a vent valve 76 is provided for venting the lubricant circuit of the device 10.
  • it may have a second flange unit 74, which is more accessible compared to the flange unit 46.
  • the device 10 has feet 78, with which they on a Any desired, not shown pad can be provided. In order not to transmit the oscillations arising during operation of the device 10, or at least to a reduced extent, to the substrate, the feet have vibration absorbers 80. This is particularly useful when using the device 10 in a vehicle, so as not to affect the ride comfort.
  • the housing 14 and the further housing may be integrally formed 18, so for example as a contiguous casting.
  • the drive unit and the auxiliary unit no longer need to be connected by separate connection means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un dispositif pour faire fonctionner un groupe auxiliaire (16) comprenant un logement (14) d'un véhicule (18), en particulier d'un véhicule utilitaire, avec une unité d'entraînement (12) comprenant un autre logement (18) et destinée à produire un couple, avec un arbre (30) destiné à transmettre le couple de l'unité d'entraînement (12) au groupe auxiliaire (16), l'arbre (30) faisant saillie dans le logement (14) du groupe auxiliaire (16) ou dans l'autre logement (18) de l'unité d'entraînement (12). L'unité d'entraînement (12) et le groupe auxiliaire (16) forment en outre un circuit commun de fluide de refroidissement (52) destiné à refroidir l'unité d'entraînement (12) et le groupe auxiliaire (16).
EP09753571A 2008-05-30 2009-02-24 Dispositif pour faire fonctionner un groupe auxiliaire d un véhicule à moteur, en particulier d un véhicule utilitaire Withdrawn EP2300714A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008026227 2008-05-30
DE102008049238A DE102008049238A1 (de) 2008-05-30 2008-09-26 Vorrichtung zum Betreiben eines Hilfsaggregates eines Fahrzeuges, insbesondere Nutzfahrzeuges
PCT/EP2009/001281 WO2009143916A1 (fr) 2008-05-30 2009-02-24 Dispositif pour faire fonctionner un groupe auxiliaire d’un véhicule à moteur, en particulier d’un véhicule utilitaire

Publications (1)

Publication Number Publication Date
EP2300714A1 true EP2300714A1 (fr) 2011-03-30

Family

ID=41254082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09753571A Withdrawn EP2300714A1 (fr) 2008-05-30 2009-02-24 Dispositif pour faire fonctionner un groupe auxiliaire d un véhicule à moteur, en particulier d un véhicule utilitaire

Country Status (6)

Country Link
US (1) US20110123367A1 (fr)
EP (1) EP2300714A1 (fr)
JP (1) JP2011522736A (fr)
CN (1) CN102016309A (fr)
DE (1) DE102008049238A1 (fr)
WO (1) WO2009143916A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1403016B1 (it) * 2010-12-13 2013-09-27 Nu Air Compressors And Tools S P A Unita' di alimentazione di aria compressa
DE102020113119B4 (de) 2020-05-14 2022-02-10 Hanon Systems Befestigungsanordnung zum Anbringen einer Vorrichtung zum Verdichten eines dampfförmigen Fluids und Vorrichtung mit der Befestigungsanordnung

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Also Published As

Publication number Publication date
CN102016309A (zh) 2011-04-13
US20110123367A1 (en) 2011-05-26
DE102008049238A1 (de) 2009-12-03
WO2009143916A1 (fr) 2009-12-03
JP2011522736A (ja) 2011-08-04

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