EP2986850A1 - Compressor system having a coupling - Google Patents

Compressor system having a coupling

Info

Publication number
EP2986850A1
EP2986850A1 EP14720925.8A EP14720925A EP2986850A1 EP 2986850 A1 EP2986850 A1 EP 2986850A1 EP 14720925 A EP14720925 A EP 14720925A EP 2986850 A1 EP2986850 A1 EP 2986850A1
Authority
EP
European Patent Office
Prior art keywords
compressor
piston
drive
compressor system
hollow shaft
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.)
Granted
Application number
EP14720925.8A
Other languages
German (de)
French (fr)
Other versions
EP2986850B1 (en
Inventor
Huba Nemeth
Gergeley BOKA
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
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 Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2986850A1 publication Critical patent/EP2986850A1/en
Application granted granted Critical
Publication of EP2986850B1 publication Critical patent/EP2986850B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04B35/00—Piston 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
    • F04B35/002—Piston 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 driven by internal combustion engines
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • 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
    • F04B39/0094—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 crankshaft
    • 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

Definitions

  • the present invention relates to a compressor system for supplying compressed air to a commercial vehicle with a compressor, a clutch and a
  • Auxiliary device wherein the compressor system is drivable via a drive shaft of the drive motor of the commercial vehicle and the compressor is completely decoupled by the clutch from the drive motor.
  • Modern commercial vehicles have various subsystems that can be operated with compressed air. This includes, for example, a compressed air powered
  • a compressed air supply device is normally provided in the utility vehicle, which comprises a compressor.
  • This compressor is mechanically driven by a drive motor of the utility vehicle. Since the need for compressed air within the utility vehicle usually no
  • Continuous operation of the compressor may require a clutch between the Drive motor and the compressor may be provided to allow decoupling of compressor and drive. This is desirable because the operation of the compressor consumes energy that can be saved if no compressed air is needed or if the existing compressed air supply the
  • Compressed air demand of the consumer over a certain period of time can cover.
  • Compressor is switched off.
  • the compressor can be disengaged mainly on highways.
  • the steering assistance is not absolutely necessary because of the small radii of the curves.
  • steering maneuvers for example to
  • Electric motor This is in principle feasible, but the electric motor has a large Achieve power of about 50kW, which is why also claimed according to space and weight.
  • the document DE 10 2009 023 869 A1 discloses a compressor system and a method for operating such a compressor system for supplying compressed air to a commercial vehicle.
  • the commercial vehicle comprises a drive motor and is driven by the drive motor via a drive train.
  • Driveline is branched off via a drive a drive train for the compressor system, which comprises a compressor and an auxiliary device, in this case a hydraulic pump.
  • the compressor system is driven as a whole by the drive train, wherein via a gear drive a power take-off for driving the hydraulic pump is provided.
  • a clutch is arranged, the open or
  • a disadvantage of this compressor system is that it takes a relatively large amount of space due to the parallel structure. Furthermore, the gear drive and the drive not only take up additional space but also significantly increase the weight of the entire compressor system.
  • a hollow shaft is arranged coaxially to the drive shaft, which can be connected via the clutch to the drive shaft in order to at least indirectly drive at least one respective piston of the compressor movable up and down in a cylinder.
  • the drive shaft extends through the hollow shaft and drives the auxiliary device, which may preferably be a hydraulic pump to.
  • the auxiliary device is driven independently of a coupling position of the engine via the drive shaft.
  • the at least one piston of the compressor is opposite to the clutch on or off.
  • the compressor is completely decoupled from the drive motor, whereby energy can be saved.
  • the at least one piston via a on a
  • This cylindrical, eccentric element is preferably a cam.
  • the cylindrical, eccentric element is a part of the hollow shaft.
  • the hollow shaft has a single section having a larger radius and an eccentric geometry as compared with the outer radius of the shaft.
  • the invention includes the technical teaching that the cylindrical, eccentric element can be plugged onto the hollow shaft. Between the cylindrical,
  • eccentric element and the hollow shaft is preferably a press fit.
  • a connecting rod connected via a connecting rod with the at least one piston abuts the cylindrical, eccentric element.
  • a rotational movement of the hollow shaft is converted via the cylindrical, eccentric element of the adjoining connecting rod and the connecting rod in a translational movement of the at least one piston.
  • the compressor has at least two cylinders, each with a piston movable up and down therein, the at least two pistons being driven via cylindrical eccentric elements arranged in series on the outer peripheral surface of the hollow shaft.
  • the compressor has at least two cylinders each with a piston movable up and down therein, at least one piston being connected to the outer peripheral surface of the piston
  • Hollow shaft arranged cylindrical, eccentric element is driven, and at least one piston is driven directly via the drive shaft.
  • the drive shaft at the point where the connecting rod engages preferably a crank.
  • the compressor is designed either as a single-stage compressor, as a two-stage compressor or as a multi-stage compressor.
  • FIG. 2 shows a schematic representation of a compressor system, comprising a compressor with two pistons, according to a second embodiment
  • Fig. 3 is a schematic representation of a compressor system comprising a compressor with two pistons, according to a third embodiment.
  • the compressor system of Figure 1 consists essentially of a driven by a drive motor 5 drive shaft 4, which drives an auxiliary device 3. Coaxial with the drive shaft 4, a hollow shaft 6 is arranged, which is connectable via a coupling 2 with the drive shaft 4. As soon as the coupling connecting the drive shaft 4 with the hollow shaft 6 is closed, the hollow shaft 6 rotates at the same speed as the drive shaft 4 after a short start-up phase.
  • the hollow shaft 6 drives via an outer peripheral surface of the hollow shaft 6 arranged cylindrical, eccentric element 9a and a connecting rod arranged thereon I Ia a in a cylinder 7a up and down movable piston 8a.
  • the piston 8a is connected via a connecting rod 10 with the connecting rod I Ia.
  • the compressor system has a compressor 1 with two cylinders 7a, 7b.
  • a piston 8a, 8b movable up and down is respectively arranged, wherein the two pistons 8a, 8b are driven via a cylindrical, eccentric elements 9a, 9b arranged in series on the outer circumferential surface of the hollow shaft 6 ,
  • the cylindrical, eccentric elements 9a, 9b are offset by 180 ° to each other.
  • FIG. 3 shows a further embodiment of the compressor system comprising a compressor 1 with two cylinders 7a, 7b.
  • the one piston 8a is driven by a cylindrical eccentric member 9a disposed on the outer peripheral surface of the hollow shaft.
  • the other piston 8b is driven directly via the drive shaft 4.
  • the drive shaft 4 at the point where the connecting rod 1 lb attacks a crank 12.
  • both the auxiliary device 3 and the piston 8b of the compressor 1 is driven at an open coupling position via the drive shaft 4.
  • the other piston 8a can be switched on or off via the clutch 2.

Abstract

The invention relates to a compressor system for supplying compressed air to a utility vehicle, having a compressor (1), a coupling (2) and an auxiliary device (3), wherein the compressor system can be driven by the drive motor (5) of the utility vehicle via a drive shaft (4) and the compressor (1) can be completely decoupled from the drive motor (5) by the coupling (2). According to the invention, a hollow shaft (6) is arranged coaxially to the drive shaft (4) which can be connected to the drive shaft (4) via the coupling (2) in order to drive, at least indirectly, at least one piston (8a) of the compressor (1), which can move up and down in a cylinder (7a).

Description

Kompressorsystem mit Kupplung  Compressor system with clutch
GEBIET DER ERFINDUNG FIELD OF THE INVENTION
Die vorliegende Erfindung betrifft ein Kompressorsystem zur Druckluftversorgung eines Nutzfahrzeugs mit einem Kompressor, einer Kupplung und einer The present invention relates to a compressor system for supplying compressed air to a commercial vehicle with a compressor, a clutch and a
Hilfsvorrichtung, wobei das Kompressorsystem über eine Antriebswelle von dem Antriebsmotor des Nutzfahrzeugs antreibbar ist und der Kompressor durch die Kupplung vollständig von dem Antriebsmotor entkoppelbar ist. Auxiliary device, wherein the compressor system is drivable via a drive shaft of the drive motor of the commercial vehicle and the compressor is completely decoupled by the clutch from the drive motor.
HINTERGRUND DER ERFINDUNG BACKGROUND OF THE INVENTION
Moderne Nutzfahrzeuge weisen verschiedene Teilsysteme auf, die mit Druckluft betrieben werden können. Dazu gehört beispielsweise eine druckluftbetriebeneModern commercial vehicles have various subsystems that can be operated with compressed air. This includes, for example, a compressed air powered
Betriebsbremse und eine Luftfederung. Um die Versorgung dieser Teilsysteme mit Druckluft sicherzustellen, ist normalerweise eine Druckluftversorgungseinrichtung in dem Nutzufahrzeug vorgesehen, die einen Kompressor umfasst. Dieser Kompressor wird mechanisch von einem Antriebsmotor des Nutzufahrzeugs angetrieben. Da der Bedarf an Druckluft innerhalb des Nutzufahrzeugs normalerweise keinen Service brake and air suspension. To ensure that these subsystems are supplied with compressed air, a compressed air supply device is normally provided in the utility vehicle, which comprises a compressor. This compressor is mechanically driven by a drive motor of the utility vehicle. Since the need for compressed air within the utility vehicle usually no
Dauerbetrieb des Kompressors erfordert, kann eine Kupplung zwischen dem Antriebsmotor und dem Kompressor vorgesehen sein, um eine Entkopplung von Kompressor und Antrieb zu ermöglichen. Dies ist wünschenswert, da der Betrieb des Kompressors Energie verbraucht, die eingespart werden kann, wenn keine Druckluft benötigt wird beziehungsweise wenn der vorhandene Druckluftvorrat den Continuous operation of the compressor may require a clutch between the Drive motor and the compressor may be provided to allow decoupling of compressor and drive. This is desirable because the operation of the compressor consumes energy that can be saved if no compressed air is needed or if the existing compressed air supply the
Druckluftbedarf der Verbraucher über eine gewisse Zeitspanne decken kann. Compressed air demand of the consumer over a certain period of time can cover.
Aus dem allgemein bekannte Stand der Technik geht hervor, dass in modernen Nutzfahrzeugen häufig eine Kupplung vorgesehen ist, die zur Energieeinsparung in der Lage ist, den Kompressor vollständig vom Antriebsmotor zu entkoppeln. Bei der herkömmlichen Anordnung der Hydraulikpumpe auf der Abtriebsseite der From the well-known prior art it is apparent that in modern commercial vehicles often a clutch is provided which is able to save energy in the position to completely decouple the compressor from the drive motor. In the conventional arrangement of the hydraulic pump on the output side of the
Kurbelwelle des Kompressors bedeutet dies, dass gleichzeitig mit dem Kompressor auch die Hydraulikpumpe vom Antrieb abgekoppelt wird. Dies führt jedoch dazu, dass beispielsweise keine Lenkunterstützung in Form einer Servolenkung für das Nutzfahrzeug mehr verfügbar wäre. Aus Sicherheitsgründen ist dies jedoch nicht tolerierbar.  Crankshaft of the compressor, this means that simultaneously with the compressor and the hydraulic pump is disconnected from the drive. However, this means that, for example, no steering assistance in the form of a power steering for the commercial vehicle would be more available. For safety reasons, however, this is not tolerable.
Es sind verschiedene Alternativen zur Lösung dieses Problems bekannt. Eine mögliche besteht darin, die Lenkunterstützung zurückzufahren, wenn der There are several alternatives known to solve this problem. One possible is to reduce the steering assistance when the
Kompressor abgeschaltet ist. Bei dieser Variante wird davon ausgegangen, dass der Kompressor hauptsächlich auf Autobahnen ausgekuppelt werden kann. Auf diesen Strecken ist wegen der geringen Radien der Kurven auch die Lenkunterstützung nicht zwingend erforderlich. Falls jedoch Lenkmanöver, zum Beispiel zum Compressor is switched off. In this variant, it is assumed that the compressor can be disengaged mainly on highways. On these routes, the steering assistance is not absolutely necessary because of the small radii of the curves. However, if steering maneuvers, for example to
Ausweichen, durchgeführt werden müssen, fehlt die Lenkhilfe und der Kompressor müsste zugeschaltet werden. Dodge, must be performed, the power steering is missing and the compressor would have to be switched on.
Eine weitere Möglichkeit besteht darin, die Lenkunterstützung rein elektrisch zu betreiben. Es ist dann keine vom Antriebsmotor mechanisch angetriebene Another option is to operate the steering assistance purely electrically. It is then not mechanically driven by the drive motor
Lenkhilfepumpe mehr vorhanden und die Pumpe benötigt einen eigenen Power steering pump more available and the pump needs its own
Elektromotor. Dies ist prinzipiell realisierbar, aber der Elektromotor muss eine große Leistung von etwa 50kW erbringen, weshalb zusätzlich auch entsprechend Platz und Gewicht beansprucht würde. Electric motor. This is in principle feasible, but the electric motor has a large Achieve power of about 50kW, which is why also claimed according to space and weight.
Ferner geht aus der Druckschrift DE 10 2008 003 957 AI ein Kompressor mit einer Kupplung hervor, die es erlaubt, den Kompressor von einem Antriebsmotor abzukoppeln. Sofern der Kompressor von dem Antriebsmotor entkoppelt wurde, können auch keine Hilfsvorrichtungen, die in Reihe geschaltet sind mit dem Furthermore, from the document DE 10 2008 003 957 AI a compressor with a coupling forth, which makes it possible to decouple the compressor of a drive motor. If the compressor has been decoupled from the drive motor, no auxiliary devices, which are connected in series with the
Kompressor, betrieben werden. Aus der Druckschrift DE 10 2009 023 869 AI geht ein Kompressorsystem und ein Verfahren zum Betreiben eines solchen Kompressorsystems zur Druckluftversorgung eines Nutzfahrzeugs hervor. Das Nutzfahrzeug umfasst einen Antriebsmotor und wird über einen Triebstrang von dem Antriebsmotor angetrieben. Von dem Compressor, operated. The document DE 10 2009 023 869 A1 discloses a compressor system and a method for operating such a compressor system for supplying compressed air to a commercial vehicle. The commercial vehicle comprises a drive motor and is driven by the drive motor via a drive train. Of the
Triebstrang wird über einen Trieb ein Antriebsstrang für das Kompressorsystem abgezweigt, welches einen Kompressor und eine Hilfsvorrichtung, in diesem Fall eine Hydraulikpumpe, umfasst. Das Kompressorsystem wird als Ganzes von dem Antriebsstrang angetrieben, wobei über einen Rädertrieb ein Nebenabtrieb zum Antrieb der Hydraulikpumpe bereitgestellt wird. Zwischen dem Rädertrieb und dem Kompressor ist eine Kupplung angeordnet, die geöffnet beziehungsweise Driveline is branched off via a drive a drive train for the compressor system, which comprises a compressor and an auxiliary device, in this case a hydraulic pump. The compressor system is driven as a whole by the drive train, wherein via a gear drive a power take-off for driving the hydraulic pump is provided. Between the gear drive and the compressor, a clutch is arranged, the open or
geschlossen werden kann, ohne den Betrieb der Hydraulikpumpe zu beeinflussen.can be closed without affecting the operation of the hydraulic pump.
Nachteilig an diesem Kompressorsystem ist, dass es aufgrund des parallelen Aufbaus relativ viel Bauraum in Anspruch nimmt. Ferner beanspruchen der Rädertrieb und der Trieb nicht nur zusätzlichen Bauraum sondern erhöhen auch erheblich das Gewicht des gesamten Kompressorsystems. A disadvantage of this compressor system is that it takes a relatively large amount of space due to the parallel structure. Furthermore, the gear drive and the drive not only take up additional space but also significantly increase the weight of the entire compressor system.
OFFENBARUNG DER ERFINDUNG DISCLOSURE OF THE INVENTION
Es ist daher die Aufgabe der vorliegenden Erfindung, ein Kompressorsystem derart weiterzubilden, dass die vollständige Entkopplung des Kompressors von dem Antriebsmotor bei gleichzeitigem Betrieb der Hilfsvorrichtung ohne großen mechanischen Mehraufwand und unter Einsparung von Bauraum und Gewicht möglich ist. It is therefore an object of the present invention to develop a compressor system such that the complete decoupling of the compressor from the drive motor with simultaneous operation of the auxiliary device without large additional mechanical effort and saving space and weight is possible.
Die Aufgabe wird ausgehend von einem Kompressorsystem gemäß dem Oberbegriff von Anspruch 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung gehen aus den nachfolgenden abhängigen Ansprüchen hervor. The object is achieved on the basis of a compressor system according to the preamble of claim 1 in conjunction with its characterizing features. Advantageous developments of the invention will become apparent from the following dependent claims.
Erfindungsgemäß ist koaxial zur Antriebswelle eine Hohlwelle angeordnet, die über die Kupplung mit der Antriebswelle verbindbar ist, um zumindest mittelbar mindestens einen jeweils in einem Zylinder auf und ab bewegbaren Kolben des Kompressors anzutreiben. Mit anderen Worten erstreckt sich die Antriebswelle durch die Hohlwelle hindurch und treibt die Hilfsvorrichtung, welche vorzugsweise eine Hydraulikpumpe sein kann, an. Somit wird die Hilfsvorrichtung unabhängig von einer Kupplungsstellung von dem Motor über die Antriebswelle angetrieben. Der mindestens eine Kolben des Kompressors ist dem gegenüber über die Kupplung zu oder abschaltbar. Somit ist der Kompressor vollständig vom Antriebsmotor entkoppelbar, wodurch Energie eingespart werden kann. Ferner ist das According to the invention, a hollow shaft is arranged coaxially to the drive shaft, which can be connected via the clutch to the drive shaft in order to at least indirectly drive at least one respective piston of the compressor movable up and down in a cylinder. In other words, the drive shaft extends through the hollow shaft and drives the auxiliary device, which may preferably be a hydraulic pump to. Thus, the auxiliary device is driven independently of a coupling position of the engine via the drive shaft. The at least one piston of the compressor is opposite to the clutch on or off. Thus, the compressor is completely decoupled from the drive motor, whereby energy can be saved. Furthermore, that is
Kompressorsystem aufgrund des linearen Aufbaus und der koaxialen Compressor system due to the linear structure and the coaxial
Wellenanordnung besonders bauraum- und gewichtssparend. Shaft arrangement particularly space- and weight-saving.
Besonders bevorzugt ist, dass der mindestens eine Kolben über ein an einer It is particularly preferred that the at least one piston via a on a
Außenumfangsfläche der Hohlwelle angeordnetes zylindrisches, exzentrisches Element angetrieben ist. Dieses zylindrische, exzentrische Element ist vorzugsweise ein Nocken. Outer circumferential surface of the hollow shaft arranged cylindrical, eccentric element is driven. This cylindrical, eccentric element is preferably a cam.
Des Weiteren bevorzugt ist, dass das zylindrische, exzentrische Element ein Teil der Hohlwelle ist. Mit anderen Worten, weist die Hohlwelle einzelnen Abschnitt auf, die verglichen mit dem Außenradius der Welle einen größeren Radius und eine exzentrische Geometrie aufweisen. Die Erfindung schließt die technische Lehre ein, dass das zylindrische, exzentrische Element auf die Hohlwelle aufsteckbar ist. Zwischen dem zylindrischen, It is further preferred that the cylindrical, eccentric element is a part of the hollow shaft. In other words, the hollow shaft has a single section having a larger radius and an eccentric geometry as compared with the outer radius of the shaft. The invention includes the technical teaching that the cylindrical, eccentric element can be plugged onto the hollow shaft. Between the cylindrical,
exzentrischen Element und der Hohlwelle besteht vorzugsweise eine Presspassung. Es ist jedoch auch denkbar, das zylindrische, exzentrische Element an der eccentric element and the hollow shaft is preferably a press fit. However, it is also conceivable, the cylindrical, eccentric element on the
Außenumfangsfläche der Hohlwelle zu verkleben oder zu verschweißen. To bond or weld outer circumferential surface of the hollow shaft.
Besonders bevorzugt ist, dass eine über einen Pleuelzapfen mit dem mindestens einen Kolben verbundene Pleuelstange an dem zylindrischen, exzentrischen Element anliegt. Somit wird eine rotatorische Bewegung der Hohlwelle über das zylindrische, exzentrische Element der daran anliegenden Pleuelstange und dem Pleuelzapfen in eine translatorische Bewegung des mindestens einen Kolbens umgewandelt. It is particularly preferred that a connecting rod connected via a connecting rod with the at least one piston abuts the cylindrical, eccentric element. Thus, a rotational movement of the hollow shaft is converted via the cylindrical, eccentric element of the adjoining connecting rod and the connecting rod in a translational movement of the at least one piston.
Gemäß einem bevorzugten Ausführungsbeispiel weist der Kompressor mindestens zwei Zylinder mit jeweils einem darin auf und ab bewegbaren Kolben auf, wobei die mindestens zwei Kolben über in Reihe an der Außenumfangsfläche der Hohlwelle angeordnete zylindrische exzentrische Elemente angetrieben sind. Es ist jedoch auch denkbar, Kompressoren mit drei, vier oder mehr als vier Zylindern auf der gleichen Art und Weise anzutreiben wie zuvor beschrieben. Gemäß einem weiteren bevorzugten Ausführungsbeispiel weist der Kompressor mindestens zwei Zylinder mit jeweils einem darin auf und ab bewegbaren Kolben auf, wobei mindestens ein Kolben über ein an der Außenumfangsfläche der According to a preferred embodiment, the compressor has at least two cylinders, each with a piston movable up and down therein, the at least two pistons being driven via cylindrical eccentric elements arranged in series on the outer peripheral surface of the hollow shaft. However, it is also conceivable to drive compressors with three, four or more than four cylinders in the same way as described above. According to a further preferred embodiment, the compressor has at least two cylinders each with a piston movable up and down therein, at least one piston being connected to the outer peripheral surface of the piston
Hohlwelle angeordnetes zylindrisches, exzentrisches Element angetrieben ist, und mindestens ein Kolben direkt über die Antriebswelle angetrieben ist. Dazu weist die Antriebswelle an der Stelle, wo die Pleuelstange angreift, vorzugsweise eine Kurbel auf. Dadurch kann die rotatorische Bewegung der Antriebswelle in eine Hollow shaft arranged cylindrical, eccentric element is driven, and at least one piston is driven directly via the drive shaft. For this purpose, the drive shaft at the point where the connecting rod engages, preferably a crank. As a result, the rotational movement of the drive shaft in a
translatorische Bewegung des mindestens einen Kolbens umgewandelt werden. Es wird weiterhin vorgeschlagen, dass der Kompressor entweder als einstufiger Kompressor, als zweistufiger Kompressor oder als mehrstufiger Kompressor ausgebildet ist. KURZE BESCHREIBUNG DER ZEICHNUNGEN translational movement of the at least one piston to be converted. It is further proposed that the compressor is designed either as a single-stage compressor, as a two-stage compressor or as a multi-stage compressor. BRIEF DESCRIPTION OF THE DRAWINGS
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung bevorzugter Ausführungsbeispiele der Erfindung anhand der Figuren näher dargestellt. Es zeigen: Further, measures improving the invention will be described in more detail below together with the description of preferred embodiments of the invention with reference to FIGS. Show it:
Fig.l eine schematische Darstellung eines erfindungsgemäßen Kompressorsystems zur Druckluftversorgung eines Nutzfahrzeugs, umfassend einen Kompressor mit einem Kolben, Fig. 2 eine schematische Darstellung eines Kompressorsystems, umfassend einen Kompressor mit zwei Kolben, gemäß einer zweiten Ausführungsform, und 2 shows a schematic representation of a compressor system, comprising a compressor with two pistons, according to a second embodiment, and FIG
Fig. 3 eine schematische Darstellung eines Kompressorsystems, umfassend einen Kompressor mit zwei Kolben, gemäß einer dritten Ausführungsform. Fig. 3 is a schematic representation of a compressor system comprising a compressor with two pistons, according to a third embodiment.
DETAILLIERTE BESCHREIBUNG EINER BEVORZUGTEN AUSFÜHRUNGSFORM DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Das Kompressorsystem nach Figur 1 besteht im Wesentlichen aus einer von einem Antriebsmotor 5 angetriebenen Antriebswelle 4, die eine Hilfsvorrichtung 3 antreibt. Koaxial zur Antriebswelle 4 ist eine Hohlwelle 6 angeordnet, die über eine Kupplung 2 mit der Antriebswelle 4 verbindbar ist. Sobald die die Antriebswelle 4 mit der Hohlwelle 6 verbindende Kupplung geschlossen wird, dreht sich die Hohlwelle 6 nach einer kurzen Anlaufphase mit derselben Geschwindigkeit wie die Antriebswelle 4. Dabei treibt die Hohlwelle 6 über ein an einer Außenumfangsfläche der Hohlwelle 6 angeordnetes zylindrisches, exzentrisches Element 9a und eine daran angeordnete Pleuelstange I Ia einen in einem Zylinder 7a auf und ab bewegbaren Kolben 8a an. Der Kolben 8a ist über einen Pleuelzapfen 10 mit der Pleuelstange I Ia verbunden. Gemäß Figur 2 weist das Kompressorsystem einen Kompressor 1 mit zwei Zylindern 7a, 7b auf. In jeden der beiden Zylinder 7a, 7b ist jeweils ein darin auf und ab bewegbarer Kolben 8a, 8b angeordnet, wobei die beiden Kolben 8a, 8b über eine zwei in Reihe an der Außenumfangsfläche der Hohlwelle 6 angeordnete zylindrische, exzentrische Elemente 9a, 9b angetrieben sind. Die zylindrischen, exzentrischen Elemente 9a, 9b sind um 180° zueinander versetzt. The compressor system of Figure 1 consists essentially of a driven by a drive motor 5 drive shaft 4, which drives an auxiliary device 3. Coaxial with the drive shaft 4, a hollow shaft 6 is arranged, which is connectable via a coupling 2 with the drive shaft 4. As soon as the coupling connecting the drive shaft 4 with the hollow shaft 6 is closed, the hollow shaft 6 rotates at the same speed as the drive shaft 4 after a short start-up phase. The hollow shaft 6 drives via an outer peripheral surface of the hollow shaft 6 arranged cylindrical, eccentric element 9a and a connecting rod arranged thereon I Ia a in a cylinder 7a up and down movable piston 8a. The piston 8a is connected via a connecting rod 10 with the connecting rod I Ia. According to FIG. 2, the compressor system has a compressor 1 with two cylinders 7a, 7b. In each of the two cylinders 7a, 7b, a piston 8a, 8b movable up and down is respectively arranged, wherein the two pistons 8a, 8b are driven via a cylindrical, eccentric elements 9a, 9b arranged in series on the outer circumferential surface of the hollow shaft 6 , The cylindrical, eccentric elements 9a, 9b are offset by 180 ° to each other.
Figur 3 zeigt eine weitere Ausführungsform des Kompressorsystems umfassend einen Kompressor 1 mit zwei Zylindern 7a, 7b. Der eine Kolben 8a ist über ein an der Außenumfangsfläche der Hohlwelle angeordnetes zylindrisches, exzentrisches Element 9a angetrieben. Der andere Kolben 8b ist direkt über die Antriebswelle 4 angetrieben. Dazu weist die Antriebswelle 4 an der Stelle wo die Pleuelstange 1 lb angreift eine Kurbel 12 auf. Somit wird bei einer geöffneten Kupplungsstellung über die Antriebswelle 4 sowohl die Hilfsvorrichtung 3 als auch der Kolben 8b des Kompressors 1 angetrieben. Der andere Kolben 8a ist über die Kupplung 2 zu oder abschaltbar. FIG. 3 shows a further embodiment of the compressor system comprising a compressor 1 with two cylinders 7a, 7b. The one piston 8a is driven by a cylindrical eccentric member 9a disposed on the outer peripheral surface of the hollow shaft. The other piston 8b is driven directly via the drive shaft 4. For this purpose, the drive shaft 4 at the point where the connecting rod 1 lb attacks a crank 12. Thus, both the auxiliary device 3 and the piston 8b of the compressor 1 is driven at an open coupling position via the drive shaft 4. The other piston 8a can be switched on or off via the clutch 2.
Die Erfindung ist nicht beschränkt auf die vorstehend beschriebenen bevorzugten Ausführungsbeispiele. Es sind vielmehr auch Abwandlungen hiervon denkbar, welche vom Schutzbereich der nachfolgenden Ansprüche mit umfasst sind. So ist es beispielsweise auch möglich, ein Kompressorsystem, umfassend einen Kompressor 1 mit einer beliebigen Anzahl von Kolben 8 zu verwenden. The invention is not limited to the preferred embodiments described above. On the contrary, modifications are conceivable which are included in the scope of protection of the following claims. For example, it is also possible to use a compressor system comprising a compressor 1 with any number of pistons 8.
Ergänzend ist darauf hinzuweisen, dass„umfassend" keine anderen Elemente oder Schritte ausschließt und„eine" oder„ein" keine Vielzahl ausschließt. Ferner sei darauf hingewiesen, dass Merkmale oder Schritte, die mit Verweis auf eines der obigen Ausführungsbeispiele beschrieben worden sind, auch in Kombination mit anderen Merkmalen oder Schritten anderer oben beschriebener Ausführungsbeispiele verwendet werden können. Bezugszeichen in den Ansprüchen sind nicht als In addition, it should be noted that "comprehensive" does not exclude other elements or steps, and "a" or "an" does not exclude a multitude The above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference numerals in the claims are not as
Einschränkung anzusehen. To look at limitation.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Kompressor 1 compressor
2 Kupplung  2 clutch
3 Hilfsvorrichtung 3 auxiliary device
4 Antriebswelle  4 drive shaft
5 Antriebsmotor  5 drive motor
6 Hohlwelle  6 hollow shaft
7a, 7b Zylinder 7a, 7b cylinder
8a, 8b Kolben 8a, 8b pistons
9a, 9b zylindrisch, exzentrisches Element 9a, 9b cylindrical, eccentric element
10a, 10b Pleuelzapfen 10a, 10b conrod
IIa, IIb Pleuelstange  IIa, IIb connecting rod
12 Kurbel  12 crank

Claims

A n s p r ü c h e Claims
1. Ein Kompressorsystem zur Druckluftversorgung eines Nutzfahrzeugs mit einem Kompressor (1), einer Kupplung (2) und einer Hilfsvorrichtung (3), wobei das Kompressorsystem über eine Antriebswelle (4) von dem Antriebsmotor (5) des Nutzfahrzeugs antreibbar ist und der Kompressor (1) durch die Kupplung (2) vollständig von dem Antriebsmotor (5) entkoppelbar ist, 1. A compressor system for compressed air supply of a commercial vehicle with a compressor (1), a clutch (2) and an auxiliary device (3), wherein the compressor system via a drive shaft (4) of the drive motor (5) of the commercial vehicle is driven and the compressor ( 1) is completely decoupled from the drive motor (5) by the coupling (2),
dadurch gekennzeichnet, dass koaxial zur Antriebswelle (4) eine Hohlwelle (6) angeordnet ist, die über die Kupplung (2) mit der Antriebswelle (4) verbindbar ist, um zumindest mittelbar mindestens einen jeweils in einem Zylinder (7a) auf und ab bewegbaren Kolben (8a) des Kompressors (1) anzutreiben. characterized in that coaxial with the drive shaft (4) a hollow shaft (6) is arranged, which is connectable via the clutch (2) with the drive shaft (4) to at least indirectly at least one in each case in a cylinder (7a) movable up and down To drive the piston (8a) of the compressor (1).
2. Kompressorsystem nach Anspruch 1 , 2. Compressor system according to claim 1,
dadurch gekennzeichnet, dass der mindestens eine Kolben (8a) über ein an einer Außenumfangsfläche der Hohlwelle (6) angeordnetes zylindrisches, exzentrisches Element (9a) angetrieben ist. characterized in that the at least one piston (8a) is driven by a cylindrical, eccentric element (9a) arranged on an outer peripheral surface of the hollow shaft (6).
3. Kompressorsystem nach Anspruch 2, 3. Compressor system according to claim 2,
dadurch gekennzeichnet, dass das zylindrische, exzentrische Element (9a) ein Teil der Hohlwelle (6) ist. characterized in that the cylindrical, eccentric element (9a) is a part of the hollow shaft (6).
4. Kompressorsystem nach Anspruch 2, 4. Compressor system according to claim 2,
dadurch gekennzeichnet, dass das zylindrische, exzentrische Element (9a) auf die Hohlwelle (6) aufsteckbar ist. characterized in that the cylindrical, eccentric element (9a) on the hollow shaft (6) can be plugged.
5. Kompressorsystem nach Anspruch 2, 5. Compressor system according to claim 2,
dadurch gekennzeichnet, dass eine über einen Pleuelzapfen (10a) mit dem mindestens einen Kolben (8a) verbundene Pleuelstange (I Ia) an dem zylindrisch, exzentrischen Element (9a) anliegt. characterized in that a via a connecting rod (10a) with the at least one piston (8a) connected to the connecting rod (I Ia) rests against the cylindrical, eccentric element (9a).
6. Kompressorsystem nach Anspruch 1 , 6. A compressor system according to claim 1,
dadurch gekennzeichnet, dass der Kompressor (1) mindestens zwei Zylinder (7a, 7b) mit jeweils einem darin auf und ab bewegbaren Kolben (8a, 8b) aufweist, wobei die mindestens zwei Kolben (8a, 8b) jeweils über einen parallel an der characterized in that the compressor (1) has at least two cylinders (7a, 7b) each having a piston (8a, 8b) movable up and down therein, wherein the at least two pistons (8a, 8b) each have a parallel to the
Außenumfangsfläche der Hohlwelle (6) angeordnetes zylindrisches, exzentrisches Elemente (9a, 9b) angetrieben sind. Outer peripheral surface of the hollow shaft (6) arranged cylindrical, eccentric elements (9a, 9b) are driven.
7. Kompressorsystem nach Anspruch 1 , 7. A compressor system according to claim 1,
dadurch gekennzeichnet, dass der Kompressor (1) mindestens zwei Zylinder (7a, 7b) mit jeweils einem darin auf und ab bewegbaren Kolben (8a, 8b) aufweist, wobei mindestens ein Kolben (8a) über ein an der Außenumfangsfläche der Hohlwelle (6) angeordnetes zylindrisches, exzentrisches Element (9a) angetrieben ist, und mindestens ein Kolben (8b) über die Antriebswelle (4) angetrieben ist. characterized in that the compressor (1) has at least two cylinders (7a, 7b) each with a piston (8a, 8b) movable up and down, at least one piston (8a) being connected to the outer peripheral surface of the hollow shaft (6). arranged cylindrical eccentric element (9a) is driven, and at least one piston (8b) via the drive shaft (4) is driven.
8. Kompressorsystem nach Anspruch 1 , 8. A compressor system according to claim 1,
dadurch gekennzeichnet, dass der Kompressor (1) entweder als einstufiger Kompressor, als zweistufiger Kompressor oder als mehrstufiger Kompressor ausgebildet ist. characterized in that the compressor (1) is designed either as a single-stage compressor, as a two-stage compressor or as a multi-stage compressor.
EP14720925.8A 2013-04-19 2014-04-15 Compressor system having a coupling Not-in-force EP2986850B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013006861.4A DE102013006861A1 (en) 2013-04-19 2013-04-19 Compressor system with clutch
PCT/EP2014/057570 WO2014170298A1 (en) 2013-04-19 2014-04-15 Compressor system having a coupling

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EP2986850A1 true EP2986850A1 (en) 2016-02-24
EP2986850B1 EP2986850B1 (en) 2017-06-14

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EP (1) EP2986850B1 (en)
JP (1) JP6138342B2 (en)
CN (1) CN105121848B (en)
BR (1) BR112015025782A2 (en)
DE (1) DE102013006861A1 (en)
WO (1) WO2014170298A1 (en)

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JP6138342B2 (en) 2017-05-31
EP2986850B1 (en) 2017-06-14
CN105121848B (en) 2017-09-08
CN105121848A (en) 2015-12-02
DE102013006861A1 (en) 2014-10-23
WO2014170298A1 (en) 2014-10-23
BR112015025782A2 (en) 2017-07-25
JP2016516935A (en) 2016-06-09

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