EP1831551A1 - Dry running swashplate compressor comprising a coated swashplate - Google Patents

Dry running swashplate compressor comprising a coated swashplate

Info

Publication number
EP1831551A1
EP1831551A1 EP05817800A EP05817800A EP1831551A1 EP 1831551 A1 EP1831551 A1 EP 1831551A1 EP 05817800 A EP05817800 A EP 05817800A EP 05817800 A EP05817800 A EP 05817800A EP 1831551 A1 EP1831551 A1 EP 1831551A1
Authority
EP
European Patent Office
Prior art keywords
swash plate
bearing
dry running
compressor according
bearing assembly
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
EP05817800A
Other languages
German (de)
French (fr)
Other versions
EP1831551B1 (en
Inventor
Dieter Spurny
Michael Kramer
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
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge 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, Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP1831551A1 publication Critical patent/EP1831551A1/en
Application granted granted Critical
Publication of EP1831551B1 publication Critical patent/EP1831551B1/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
    • 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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating

Definitions

  • the present invention relates to a dry-running swash plate compressor, in particular for compressed air generation in commercial vehicles, with a swash plate attached to a drive shaft, which converts the driving rotary motion into an oscillating stroke movement via a bearing arrangement cooperating with the outer radial edge region, the at least one piston rod attached to the bearing assembly an associated cylinder running piston for generating the compressed air forwards.
  • a swash plate compressor which are usually driven directly by the engine of the commercial vehicle and supply compressed air to feed the compressed air electrical system. In commercial vehicles, the compressed air thus generated is used for example for operating a compressed air brake system.
  • a dry-running swash plate compressor is understood in the context of the invention, a swash plate compressor whose cooperating with the engine side air side is running at least dry running.
  • EP 0 859 151 A2 discloses a compressor for generating compressed air in commercial vehicles, which solves this problem in that the compressor is designed here to run as dry as possible.
  • the compressor is constructed in the manner of a swash plate compressor and has only a conventional oil-lubricated engine, which consists essentially of a arranged on a drive shaft swash plate with hemispheres in bearing cups, which form a bearing assembly for transmitting the rotational movement in an oscillating stroke. From the bearing assembly extend piston rods to various pistons, which generate by a reciprocating motion in associated cylinders in a conventional manner, the compressed air.
  • Usually several pistons are arranged on a circumferential circle adjacent to each other in order to realize the highest possible delivery of the swash plate compressor.
  • the attachment of the swash plate to the drive shaft is usually via a hub-shaft connection or by shrinking the central bore having a swash plate on the drive shaft.
  • the connection is detachable for repair purposes.
  • a critical issue in the prior design of the swashplate compressor engine is the design of the bearing assembly cooperating with the outer radial edge region of the swashplate. Because of the relative movement of the swash plate against the hemispheres of the bearing assembly here is a particularly high friction stress, which has previously been reduced by lubricating measures to a tolerable level. The friction causes an undesirable heat development in the area of the engine. The heat development is particularly strong when the piston perform their working movements against a high back pressure. It is therefore the object of the present invention to reduce the heat development in the region of the engine of a swash plate compressor.
  • the invention includes the technical teaching that the swash plate of the swash plate compressor is provided at least in the contact region to the bearing assembly with an additional coating to reduce the sliding friction.
  • PTFE polytetrafluoroethylene
  • Teflon polytetrafluoroethylene
  • the coating material is resistant to permanent heat up to about 260 ° C. It is not attacked by solvents or aggressive chemicals and is so smooth and lubricious on the surface, that hardly a foreign substance sticks to it. Since the coating material has a static friction which is the same as the sliding friction, the transition from standstill to movement takes place without jerk, which ensures a soft start-up of the swash plate compressor.
  • the swash plate is provided with the coating for reducing the sliding friction only on the side surface facing the piston. At this point, the largest sliding friction occurs between the swash plate and the bearing assembly, as this takes place the pressurization of the piston rod against the imminent compression in the cylinder.
  • the application of the coating to reduce the sliding friction can be carried out by using a PTFE film, which is applied to the surface of the swash plate.
  • the PTFE film should be glued flat or in a fixed design on the swash plate.
  • the arranged between the swash plate and piston rod bearing assembly consists of two hemispherical bearing stones, which are held in a form-fitting manner in the respective corresponding bearing cups by a U-shaped bearing bridge of the piston rod.
  • the respective straight bearing surfaces of the hemispherical bearing stones come in the outer radial edge region of the swash plate to the plant.
  • the hemispherical bearing blocks can also be provided by the straight bearing surface with a coating to reduce the sliding friction. This additional measure ensures a further reduction of the sliding friction between swash plate and bearing assembly.
  • jewels completely made of PTFE.
  • the housing has spray oil holes through which oil is dispensed selectively and metered to the contact areas.
  • oil is dispensed selectively and metered to the contact areas.
  • conventional oil bath lubrication can be dispensed with.
  • the interior of the engine is flowed through by a flow of cooling air to dissipate the resulting due to the dry running heat with the cooling air flow to the outside.
  • FIG. 1 shows a longitudinal section through a dry-running swash plate compressor
  • a schematic side view of a swash plate with coating is shown.
  • the dry running swash plate compressor shown here on the side of the engine to a drive shaft 1, which is offset by a - not shown here - motor in rotational movement.
  • a swash plate 2 On the drive shaft 1, a swash plate 2 is fixed in a conventional manner.
  • the swash plate 2 is about a bearing assembly 3, the rotational movement of the drive shaft 1 in an oscillating stroke movement.
  • the lifting movement is transmitted to a mounted on the bearing assembly 3 piston rod 4.
  • piston rod 4 In addition to the piston rod 4 are still more piston rods associated with
  • the piston rod 4 forwards the reciprocating motion generated due to the rotation of the swash plate 2 to a piston 5 which is coaxially fixed to the end of the piston rod 4 opposite the bearing assembly 3.
  • the piston 5 runs within an associated cylinder 6, in which the compressed air is generated due to the movement of the piston 5.
  • a suction of air from the atmosphere follows through the piston 5, which has a check valve 7 for this purpose.
  • the compressed compressed air leaves the cylinder 6 via another appropriately designed check valve 8 on the cylinder head 9, which is mounted on the valve housing 10.
  • the Piston rod 4 is guided axially via a stationary to the compressor housing 10 arranged bearing bore 11.
  • the latter is provided in the contact region to the bearing assembly 3 with an additional coating 12.
  • the bearing assembly 3 consists of two strichkugelf ⁇ rmigen bearing blocks 13a, 13b, which are held in each corresponding bearing cups by a U-shaped bearing bridge 14 of the piston rod 4 pivotally positively, so that each straight
  • the housing 10 has spray oil bores 15 from which oil reaches the areas of contact to be lubricated between the swash plate 2 and the bearing arrangement 3 in a targeted and metered manner.
  • the oil passes indirectly from the spray oil hole 15 under the influence of the rapid rotation of the drive shaft 1 to be lubricated contact areas.
  • a PTFE film used which is applied to the surface of the swash plate 2.
  • the swash plate 2 is provided only on the - not shown here - the piston 5 facing side surface with the coating 12 to reduce the sliding friction.
  • Such a coated swash plate 2 is also quite suitable for use in conjunction with an oil-lubricated engine of a swash plate compressor.
  • the interior of the engine can be flowed through by a flow of cooling air in order to dissipate the heat arising due to the dry running to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

Disclosed is a dry running swashplate compressor, especially for producing compressed air in utility vehicles, comprising a swashplate (2) that is fastened to a drive shaft (1) and converts the driving rotary movement into an oscillating lifting movement via a bearing arrangement (3) which cooperates with the radially exterior edge region, said lifting movement redirecting a piston rod (4) that is mounted on the bearing arrangement (3) to pistons (5) which run in an associated cylinder (6) in order to produce the compressed air. The swashplate (2) is provided with an additional coating (12) at least in the contact zone with the bearing arrangement (3) so as to reduce sliding friction.

Description

Trockenlaufender Taumelscheibenverdichter mit einer beschichteten Taumelscheibe Dry running swash plate compressor with a coated swash plate
Die vorliegende Erfindung betrifft einen trockenlaufenden Taumelscheibenverdichter, insbesondere zur Drucklufterzeugung in Nutzfahrzeugen, mit einer an einer Antriebswelle befestigten Taumelscheibe, die über eine mit dem außenradialen Randbereich zusammenwirkende Lageranordnung die antreibende Drehbewegung in eine oszillierende Hubbewegung umsetzt, die mindestens eine an der Lageranordnung angebrachte Kolbenstange an in einem zugeordneten Zylinder laufenden Kolben zur Erzeugung der Druckluft weiterleitet.The present invention relates to a dry-running swash plate compressor, in particular for compressed air generation in commercial vehicles, with a swash plate attached to a drive shaft, which converts the driving rotary motion into an oscillating stroke movement via a bearing arrangement cooperating with the outer radial edge region, the at least one piston rod attached to the bearing assembly an associated cylinder running piston for generating the compressed air forwards.
Das Einsatzgebiet eines derartigen Taumelscheibenverdichters erstreckt sich vornehmlich auf die Nutzfahrzeugtechnik. In Nutzfahrzeugen kommen Verdichter zum Einsatz, welche meist direkt über den Motor des Nutzfahrzeuges angetrieben werden und Druckluft zur Speisung des Druckluft-Bordnetzes liefern. Bei Nutzfahrzeugen wird die so erzeugte Druckluft beispielsweise zum Betrieb einer Druckluft-Bremsanlage genutzt. Als trockenlaufender Taumelscheibenverdichter wird im Rahmen der Erfindung ein Taumelscheibenverdichter verstanden, dessen mit der Triebwerkseite zusammenwirkende Luftseite zumindest trockenlaufend ausgeführt ist.The field of application of such a swash plate compressor extends primarily to commercial vehicle technology. In commercial vehicles come compressors are used, which are usually driven directly by the engine of the commercial vehicle and supply compressed air to feed the compressed air electrical system. In commercial vehicles, the compressed air thus generated is used for example for operating a compressed air brake system. As a dry-running swash plate compressor is understood in the context of the invention, a swash plate compressor whose cooperating with the engine side air side is running at least dry running.
In allgemein bekannter Weise werden für die Drucklufterzeugung in Nutzfahrzeugen vornehmlich ölgeschmierte Kolbenverdichter eingesetzt. Die Schmierung dieser Verdichter erfolgt meist aus dem Ölkreislauf des Motors. Hierbei gelangt allerdings zwangsläufig Öl über die Kolben des Verdichters in die erzeugte Druckluft. Je nach Alter undIn a generally known manner, primarily oil-lubricated reciprocating compressors are used for the production of compressed air in commercial vehicles. The lubrication of these compressors usually takes place from the oil circuit of the engine. In this case, however, inevitably oil passes through the pistons of the compressor in the generated compressed air. Depending on the age and
Wartungszustand des Verdichters können erhebliche Ölmengen über die Druckluft in die Umwelt gelangen, nämlich über diverse Entlüftungsöffhungen des Druckluft-Bordnetzes. Ein weiteres Problem ölgeschmierter Kolbenverdichter im Nutzfahrzeugbereich besteht darin, dass immer höhere Betriebsdrücke vom Verdichter abverlangt werden, womit recht hohe thermische Beanspruchungen einhergehen, welche zu Verkokungen eines Teils des in die Druckluft gelangten Öls führt. Diese Ölkohle lagert sich innerhalb des Innenraums des Zylinders im Verdichter und nachgeschalteten Druckluftgeräten ab und beeinflusst dort sehr nachhaltig deren Standzeit.Maintenance condition of the compressor can reach considerable amounts of oil through the compressed air into the environment, namely via various vent openings of the compressed air system. Another problem oil-lubricated piston compressor in the commercial vehicle sector is that ever higher operating pressures are required from the compressor, which is accompanied by quite high thermal stresses, resulting in coking of a portion of the in the Compressed air got oil leads. This carbon deposits itself within the interior of the cylinder in the compressor and downstream compressed air devices and influences there very sustainably their life.
Aus der EP 0 859 151 A2 geht ein Verdichter zur Drucklufterzeugung in Nutzfahrzeugen hervor, welcher dieses Problem dadurch löst, in dem der Verdichter hier weitestgehend trockenlaufend konstruiert ist. Der Verdichter ist nach Art eines Taumelscheibenverdichters aufgebaut und weist lediglich ein herkömmliches ölgeschmiertes Triebwerk auf, welches im Wesentlichen aus einer auf einer Antriebswelle angeordneten Taumelscheibe mit Halbkugeln in Lagerpfannen besteht, die eine Lageranordnung zu Übertragung der Drehbewegung in eine oszillierende Hubbewegung bilden. Von der Lageranordnung aus verlaufen Kolbenstangen zu diversen Kolben, welche durch eine Hin- und Herbewegung in zugeordneten Zylindern in an sich bekannter Weise die Druckluft erzeugen. Gewöhnlich sind mehrere Kolben auf einem Umfangskreis benachbart zueinander angeordnet, um eine möglichst hohe Förderleistung des Taumelscheibenverdichters zu realisieren.EP 0 859 151 A2 discloses a compressor for generating compressed air in commercial vehicles, which solves this problem in that the compressor is designed here to run as dry as possible. The compressor is constructed in the manner of a swash plate compressor and has only a conventional oil-lubricated engine, which consists essentially of a arranged on a drive shaft swash plate with hemispheres in bearing cups, which form a bearing assembly for transmitting the rotational movement in an oscillating stroke. From the bearing assembly extend piston rods to various pistons, which generate by a reciprocating motion in associated cylinders in a conventional manner, the compressed air. Usually several pistons are arranged on a circumferential circle adjacent to each other in order to realize the highest possible delivery of the swash plate compressor.
Die Befestigung der Taumelscheibe an der Antriebswelle erfolgt gewöhnlich über eine Nabe- Welle-Verbindung oder durch Aufschrumpfen der eine zentrale Bohrung aufweisenden Taumelscheibe auf die Antriebswelle. Ersterenfalls ist die Verbindung zu Reparaturzwecken lösbar. Letzerenfalls liegt eine unlösbare Verbindung vor. Stets erfolgt beim Stand derThe attachment of the swash plate to the drive shaft is usually via a hub-shaft connection or by shrinking the central bore having a swash plate on the drive shaft. In the first case, the connection is detachable for repair purposes. In the latter case, there is an insoluble compound. Always done at the state of
Technik jedoch eine ortsfeste Befestigung der Taumelscheibe gegenüber der Antriebswelle.Technique, however, a fixed attachment of the swash plate against the drive shaft.
Ein kritischer Punkt bei der bekannten Konstruktion des Triebwerks eines Taumelscheibenverdichters besteht in der Gestaltung der mit dem außenradialen Randbereich der Taumelscheibe zusammenwirkenden Lageranordnung. Wegen der relativen Bewegung der Taumelscheibe gegenüber den Halbkugeln der Lageranordnung entsteht hier eine besonders hohe Reibbeanspruchung, welche bisher durch Schmiermaßnahmen auf ein erträgliches Maß reduziert wird. Die Reibung verursacht eine unerwünschte Wärmeentwicklung im Bereich des Triebwerks. Die Wärmeentwicklung ist besonders stark, wenn die Kolben ihre Arbeitsbewegungen gegen einen hohen Gegendruck ausführen. Es ist daher die Aufgabe der vorliegenden Erfindung, die Wärmeentwicklung im Bereich des Triebwerks eines Taumelscheibenverdichters zu reduzieren.A critical issue in the prior design of the swashplate compressor engine is the design of the bearing assembly cooperating with the outer radial edge region of the swashplate. Because of the relative movement of the swash plate against the hemispheres of the bearing assembly here is a particularly high friction stress, which has previously been reduced by lubricating measures to a tolerable level. The friction causes an undesirable heat development in the area of the engine. The heat development is particularly strong when the piston perform their working movements against a high back pressure. It is therefore the object of the present invention to reduce the heat development in the region of the engine of a swash plate compressor.
Die Aufgabe wird ausgehend von einem trockenlaufenden Taumelscheibenverdichter gemäß dem Oberbegriff von Anspruch 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst. Die nachfolgenden abhängigen Ansprüche geben vorteilhafte Weiterbildungen der Erfindung wieder.The object is achieved on the basis of a dry running swash plate compressor according to the preamble of claim 1 in conjunction with its characterizing features. The following dependent claims give advantageous developments of the invention.
Die Erfindung schließt die technische Lehre ein, dass die Taumelscheibe des Taumelscheibenverdichters zumindest im Kontaktbereich zu der Lageranordnung mit einer zusätzlichen Beschichtung zur Reduzierung der Gleitreibung versehen ist.The invention includes the technical teaching that the swash plate of the swash plate compressor is provided at least in the contact region to the bearing assembly with an additional coating to reduce the sliding friction.
Ein Vorteil dieser fertigungstechnisch relativ einfach umsetzbaren Maßnahme besteht darin, dass die Gleitreibung zwischen der Taumelscheibe und der Lageranordnung signifikant sinkt, so dass an dieser Stelle weniger Wärme aufgrund der Reibung entsteht. Dieses Ziel wird dabei nicht - wie der Fachmann üblicherweise vorgehen würde - durch eine Verbesserung der Schmierung oder der Oberfläche der Taumelscheibe selbst erreicht, sondern durch eine Beschichtung mit einem anderen Material. Insoweit zeigt die erfindungsgemäße Lösung hier einen anderen Weg auf.An advantage of this production technology relatively easily implementable measure is that the sliding friction between the swash plate and the bearing assembly significantly decreases, so that less heat due to friction arises at this point. This goal is not achieved - as the skilled person would usually do - by improving the lubrication or the surface of the swash plate itself, but by a coating with another material. In that regard, the solution according to the invention shows a different route here.
Vorzugsweise besteht die Beschichtung zur Reduzierung der Gleitreibung zwischen Taumelscheibe und Lageranordnung erfindungsgemäß aus einem PTFE-Werkstoff (PTFE = Polytetrafluorethylen). Dieser Werkstoff, der auch unter dem Handelsnamen Teflon bekannt ist, eignet sich wegen besonders hoher Druckbeanspruchbarkeit ganz besonders für den erfindungsgemäßen Einsatzzweck. Das Beschichtungsmaterial ist dauerwärmebeständig bis etwa 260° C. Es wird weder von Lösungsmitteln noch von aggressiven Chemikalien angegriffen und ist an der Oberfläche so glatt und gleitfähig, dass kaum eine Fremdsubstanz daran haften bleibt. Da das Beschichtungsmaterial eine Haftreibung aufweist, welche genauso groß wie die Gleitreibung ist, findet der Übergang von Stillstand zu Bewegung ohne ruckein statt, was ein weiches Anlaufverhalten des Taumelscheibenverdichters gewährleistet. Da die Materialkosten des vorstehend als besonders geeignet angegebenen Werkstoffs recht hoch sind, wird vorgeschlagen, dass die Taumelscheibe nur an der den Kolben zugewandten Seitenfläche mit der Beschichtung zur Reduzierung der Gleitreibung versehen ist. An dieser Stelle tritt auch die größte Gleitreibung zwischen der Taumelscheibe und der Lageranordnung auf, da hierüber die Druckbeaufschlagung der Kolbenstange entgegen des im Zylinder anstehenden Kompressionsdruckes erfolgt.According to the invention, the coating for reducing the sliding friction between the swash plate and the bearing arrangement preferably consists of a PTFE material (PTFE = polytetrafluoroethylene). This material, which is also known under the trade name Teflon, is particularly suitable for the purpose of the invention because of its particularly high compressive strength. The coating material is resistant to permanent heat up to about 260 ° C. It is not attacked by solvents or aggressive chemicals and is so smooth and lubricious on the surface, that hardly a foreign substance sticks to it. Since the coating material has a static friction which is the same as the sliding friction, the transition from standstill to movement takes place without jerk, which ensures a soft start-up of the swash plate compressor. Since the material costs of the material specified above as being particularly suitable are quite high, it is proposed that the swash plate is provided with the coating for reducing the sliding friction only on the side surface facing the piston. At this point, the largest sliding friction occurs between the swash plate and the bearing assembly, as this takes place the pressurization of the piston rod against the imminent compression in the cylinder.
Das Aufbringen der Beschichtung zur Reduzierung der Gleitreibung kann dadurch erfolgen, indem eine PTFE-Folie zum Einsatz kommt, welche auf die Oberfläche der Taumelscheibe aufgebracht wird. In diesem Falle wäre die PTFE-Folie flächig oder in gefasster Ausführung auf die Taumelscheibe aufzukleben.The application of the coating to reduce the sliding friction can be carried out by using a PTFE film, which is applied to the surface of the swash plate. In this case, the PTFE film should be glued flat or in a fixed design on the swash plate.
Vorzugsweise besteht die zwischen Taumelscheibe und Kolbenstange angeordnete Lagerordnung aus zwei halbkugelförmigen Lagersteinen, die in die jeweils korrespondierenden Lagerpfannen seitens einer U-förmigen Lagerbrücke der Kolbenstange verschwenkbar formschlüssig gehalten sind. Hierbei kommen die jeweils geraden Lagerflächen der halbkugelförmigen Lagersteine im außenradialen Randbereich an der Taumelscheibe zur Anlage. Bei dieser Ausgestaltung der Lageranordnung können die halbkugelförmigen Lagersteine seitens der geraden Lagerfläche ebenfalls mit einer Beschichtung zur Reduzierung der Gleitreibung versehen werden. Diese zusätzliche Maßnahme gewährleistet eine weitere Verringerung der Gleitreibung zwischen Taumelscheibe und Lageranordnung. Ferner ist es auch denkbar, Lagersteine selbst vollständig aus PTFE herzustellen.Preferably, the arranged between the swash plate and piston rod bearing assembly consists of two hemispherical bearing stones, which are held in a form-fitting manner in the respective corresponding bearing cups by a U-shaped bearing bridge of the piston rod. Here, the respective straight bearing surfaces of the hemispherical bearing stones come in the outer radial edge region of the swash plate to the plant. In this embodiment of the bearing arrangement, the hemispherical bearing blocks can also be provided by the straight bearing surface with a coating to reduce the sliding friction. This additional measure ensures a further reduction of the sliding friction between swash plate and bearing assembly. Furthermore, it is also conceivable to make jewels completely made of PTFE.
Gemäß einer weiteren die Erfindung verbessernden Maßnahme wird vorgeschlagen, dass zur Schmierung und Kühlung der Kontaktbereiche zwischen Taumelscheibe und Lageranordnung das Gehäuse Spritzölbohrungen aufweist, durch welche Öl gezielt und dosiert an die Kontaktbereiche abgegeben wird. Durch diese Maßnahme wird eine nur lokale Schmierung der schmierungsbedürftigen Stellen des Triebwerks erreicht. Auf eine herkömmliche Ölbadschmierung kann insoweit verzichtet werden. Zur weiteren Verbesserung der Kühlung der Kontaktbereiche zwischen Taumelscheibe und Lageranordnung wird vorgeschlagen, dass der Innenraum des Triebwerks von einem Kühlluftstrom durchströmt wird, um die aufgrund der Trockenlaufs entstehende Wärme mit dem Kühlluftstrom nach außen abzuführen.According to a further measure improving the invention, it is proposed that for lubrication and cooling of the contact areas between swash plate and bearing arrangement, the housing has spray oil holes through which oil is dispensed selectively and metered to the contact areas. By this measure, only a local lubrication of the engine parts requiring lubrication is achieved. In this respect, conventional oil bath lubrication can be dispensed with. To further improve the cooling of the contact areas between the swash plate and the bearing arrangement, it is proposed that the interior of the engine is flowed through by a flow of cooling air to dissipate the resulting due to the dry running heat with the cooling air flow to the outside.
Weitere die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausfuhrungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigt:Further measures improving the invention will be described in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to FIGS. It shows:
Fig.1 einen Längsschnitt durch einen trockenlaufenden Taumelscheibenverdichter und1 shows a longitudinal section through a dry-running swash plate compressor and
Fig.2 eine schematische Seitenansicht einer Taumelscheibe mit Beschichtung.A schematic side view of a swash plate with coating.
Gemäß Fig.l weist der hier dargestellte trockenlaufende Taumelscheibenverdichter auf Seiten des Triebwerks eine Antriebswelle 1 auf, welche durch einen - hier nicht weiter dargestellten - Motor in Drehbewegung versetzt wird. An der Antriebswelle 1 ist eine Taumelscheibe 2 in an sich bekannter Weise befestigt. Die Taumelscheibe 2 setzt über eine Lageranordnung 3 die Drehbewegung der Antriebswelle 1 in eine oszilierende Hubbewegung um. Die Hubbewegung wird auf eine an der Lageranordnung 3 angebrachten Kolbenstange 4 übertragen.According to Fig.l, the dry running swash plate compressor shown here on the side of the engine to a drive shaft 1, which is offset by a - not shown here - motor in rotational movement. On the drive shaft 1, a swash plate 2 is fixed in a conventional manner. The swash plate 2 is about a bearing assembly 3, the rotational movement of the drive shaft 1 in an oscillating stroke movement. The lifting movement is transmitted to a mounted on the bearing assembly 3 piston rod 4.
Neben der Kolbenstange 4 sind noch weitere Kolbenstangen mit zugeordnetenIn addition to the piston rod 4 are still more piston rods associated with
Lageranordnungen vorhanden; die nachfolgende Beschreibung ist also exemplarisch zu verstehen.Bearing arrangements available; The following description is thus to be understood as an example.
Die Kolbenstange 4 leitet die aufgrund der Drehung der Taumelscheibe 2 erzeugte Hin- und Herbewegung an einen Kolben 5 weiter, welcher an dem der Lageranordnung 3 gegenüberliegenden Ende der Kolbenstange 4 koaxial befestigt ist. Der Kolben 5 läuft innerhalb eines zugeordneten Zylinders 6, in welchem die Druckluft aufgrund der Bewegung des Kolbens 5 erzeugt wird. Eine Ansaugung von Luft aus der Atmosphäre folgt durch den Kolben 5 hindurch, welcher zu diesem Zwecke ein Rückschlagventil 7 besitzt. Die komprimierte Druckluft verlässt den Zylinder 6 über ein weiteres entsprechend gestaltetes Rückschlagventil 8 am Zylinderkopf 9, der am Ventilgehäuse 10 angebracht ist. Die Kolbenstange 4 wird über eine ortsfest zum Verdichtergehäuse 10 angeordnete Lagerbohrung 11 axial geführt.The piston rod 4 forwards the reciprocating motion generated due to the rotation of the swash plate 2 to a piston 5 which is coaxially fixed to the end of the piston rod 4 opposite the bearing assembly 3. The piston 5 runs within an associated cylinder 6, in which the compressed air is generated due to the movement of the piston 5. A suction of air from the atmosphere follows through the piston 5, which has a check valve 7 for this purpose. The compressed compressed air leaves the cylinder 6 via another appropriately designed check valve 8 on the cylinder head 9, which is mounted on the valve housing 10. The Piston rod 4 is guided axially via a stationary to the compressor housing 10 arranged bearing bore 11.
Zur Reduzierung der Gleitreibung zwischen Lageranordnung 3 und Taumelscheibe 2 ist letztere im Kontaktbereich zu der Lageranordnung 3 mit einer zusätzlichen Beschichtung 12 versehen.To reduce the sliding friction between the bearing assembly 3 and swash plate 2, the latter is provided in the contact region to the bearing assembly 3 with an additional coating 12.
Die Lageranordnung 3 besteht aus zwei halbkugelfδrmigen Lagersteinen 13a, 13b, die in jeweils korrespondierenden Lagerpfannen seitens einer U-förmigen Lagerbrücke 14 der Kolbenstange 4 verschwenkbar formschlüssig gehalten sind, so dass die jeweils geradenThe bearing assembly 3 consists of two halbkugelfδrmigen bearing blocks 13a, 13b, which are held in each corresponding bearing cups by a U-shaped bearing bridge 14 of the piston rod 4 pivotally positively, so that each straight
Lagerflächen der halbkugelfδrmigen Lagersteine 13 a, 13b im außenradialen Randbereich an der Taumelscheibe 2 auf der Beschichtung 12 zur Anlage kommen. Das Gehäuse 10 weist Spritzölbohrungen 15 auf, aus welchen Öl gezielt und dosiert an die zu schmierenden Kontaktbereiche zwischen der Taumelscheibe 2 und der Lageranordnung 3 gelangt. Das Öl gelangt dabei indirekt ausgehend von der Spritzölbohrung 15 unter Beeinflussung durch die schnelle Rotation der Antriebswelle 1 an die zu schmierenden Kontaktbereiche.Bearing surfaces of the hemispherical bearing blocks 13 a, 13 b in the outer radial edge region of the swash plate 2 on the coating 12 come to rest. The housing 10 has spray oil bores 15 from which oil reaches the areas of contact to be lubricated between the swash plate 2 and the bearing arrangement 3 in a targeted and metered manner. The oil passes indirectly from the spray oil hole 15 under the influence of the rapid rotation of the drive shaft 1 to be lubricated contact areas.
Gemäß Fig.2 kommt bei diesem Einsatzbeispiel eine PTFE-Folie zur Anwendung, die auf die Oberfläche der Taumelscheibe 2 aufgebracht ist. Dabei ist die Taumelscheibe 2 nur an der dem - hier nicht weiter dargestellten - Kolben 5 zugewandten Seitenfläche mit der Beschichtung 12 zur Reduzierung der Gleitreibung versehen.According to Fig.2 comes in this application example, a PTFE film used, which is applied to the surface of the swash plate 2. In this case, the swash plate 2 is provided only on the - not shown here - the piston 5 facing side surface with the coating 12 to reduce the sliding friction.
Eine derart beschichtete Taumelscheibe 2 eignet sich durchaus auch zum Einsatz in Verbindung mit einem ölgeschmierten Triebwerk eines Taumelscheibenverdichters.Such a coated swash plate 2 is also quite suitable for use in conjunction with an oil-lubricated engine of a swash plate compressor.
Weiterhin kann der Innenraum des Triebwerks von einem Kühlluftstrom durchströmt werden, um die aufgrund des Trockenlaufs entstehende Wärme nach außen hin abzuführen. BezugszeichenlisteFurthermore, the interior of the engine can be flowed through by a flow of cooling air in order to dissipate the heat arising due to the dry running to the outside. LIST OF REFERENCE NUMBERS
1 Antriebswelle1 drive shaft
2 Taumelscheibe2 swash plate
3 Lageranordnung3 bearing arrangement
4 Kolbenstange4 piston rod
5 Kolben5 pistons
6 Zylinder6 cylinders
7 Rückschlagventil7 check valve
8 Rückschlagventil8 check valve
9 Zylinderkopf9 cylinder head
10 Gehäuse10 housing
11 Lagerbohrung11 bearing bore
12 Beschichtung (PTFE)12 coating (PTFE)
13 Lagerstein13 jewel
14 Lagerbrücke14 bearing bridge
15 Spritzölbohrung 15 splash oil hole

Claims

A n s p r ti c h e Appendix
1. Trockenlaufender Taumelscheibenverdichter, insbesondere zur Drucklufterzeugung in Nutzfahrzeugen, mit einer an einer Antriebswelle (1) befestigten Taumelscheibe (2), die über eine mit dem außenradialen Randbereich zusammenwirkende Lageranordnung (3) die antreibende Drehbewegung in eine oszillierende Hubbewegung umsetzt, die mindestens eine an der Lageranordnung (3) angebrachte Kolbenstange (4) an in einem zugeordneten Zylinder (6) laufenden Kolben (5) zur Erzeugung der Druckluft weiterleitet, dadurch gekennzeichnet, dass die Taumelscheibe (2) zumindest im Kontaktbereich zu der Lageranordnung (3) mit einer zusätzlichen Beschichtung (12) zur Reduzierung der Gleitreibung versehen ist.1. A dry-running swash plate compressor, in particular for compressed air generation in commercial vehicles, with a drive shaft (1) fixed swash plate (2), which interacts via a cooperating with the outer radial edge region of the bearing assembly (3) the driving rotary motion in an oscillating stroke movement, the at least one the bearing assembly (3) attached piston rod (4) on in an associated cylinder (6) running piston (5) for generating the compressed air weiterleitet, characterized in that the swash plate (2) at least in the contact area to the bearing assembly (3) with an additional Coating (12) is provided to reduce the sliding friction.
2. Trockenlaufender Taumelscheibenverdichter nach Anspruch 1 , dadurch gekennzeichnet, dass die Beschichtung (12) zur Reduzierung der Gleitreibung zwischen Taumelscheibe (2) und Lageranordnung (3) aus einem PTFE-Werkstoff (Polytetrafluorethylen- Werkstoff) besteht.2. Dry running swash plate compressor according to claim 1, characterized in that the coating (12) for reducing the sliding friction between the swash plate (2) and bearing assembly (3) consists of a PTFE material (polytetrafluoroethylene material).
3. Trockenlaufender Taumelscheibenverdichter nach Anspruch 2, dadurch gekennzeichnet, dass zur Aufbringung der Beschichtung (12) zur Reduzierung der Gleitreibung eine PTFE-Folie zum Einsatz kommt, die auf die Oberfläche der Taumelscheibe (2) aufgebracht ist.3. Dry running swash plate compressor according to claim 2, characterized in that for applying the coating (12) for reducing the sliding friction, a PTFE film is used, which is applied to the surface of the swash plate (2).
4. Trockenlaufender Taumelscheibenverdichter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Taumelscheibe (2) nur an der den Kolben (5) zugewandten Seitenfläche mit der Beschichtung (12) zur Reduzierung der Gleitreibung versehen ist.4. Dry running swash plate compressor according to one of the preceding claims, characterized in that the swash plate (2) is provided only on the piston (5) facing side surface with the coating (12) for reducing the sliding friction.
5. Trockenlaufender Taumelscheibenverdichter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die zwischen Taumelscheibe (2) und Kolbenstange (4) angeordnete Lageranordnung (3) aus zwei halbkugelfδrmigen Lagersteinen (13a, 13b) besteht, die in jeweils korrespondierenden Lagerpfannen seitens einer U-fδrmigen Lagerbriicke (14) der Kolbenstange (4) verschwenkbar formschlüssig gehalten sind, und die mit der jeweils geraden Lagerfläche im außenradialeα Randbereich an der Taumelscheibe (2) zur Anlage kommen.5. Dry running swash plate compressor according to one of the preceding claims, characterized in that between the swash plate (2) and piston rod (4) arranged bearing assembly (3) consists of two halbkugelfδrmigen bearing blocks (13a, 13b) which in each corresponding bearing cups from a U fδrmigen Bearing bridges (14) of the piston rod (4) are pivotably held positively, and come with the respective straight bearing surface in Außenradialeα edge region of the swash plate (2) to rest.
6. Trockenlaufender Taumelscheibenverdichter nach Anspruch 5, dadurch gekennzeichnet, dass die halbkugelförmigen Lagersteine (13a, 13b) seitens der geraden Lagerfiäche ebenfalls mit einer Beschichtung zur Reduzierung der Gleitreibung versehen sind.6. Dry running swash plate compressor according to claim 5, characterized in that the hemispherical bearing blocks (13a, 13b) are also provided by the straight Lagerfiäche with a coating to reduce the sliding friction.
7. Trockenlaufender Taumelscheibenverdichter nach Anspruch 5, dadurch gekennzeichnet, dass die halbkugelförmigen Lagersteine (13a, 13b) vollständig aus einem PTFE- Werkstoff bestehen.7. Dry running swash plate compressor according to claim 5, characterized in that the hemispherical bearing blocks (13a, 13b) consist entirely of a PTFE material.
8. Trockenlaufender Taumelscheibenverdichter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zur Schmierung und Kühlung der Kontaktbereiche zwischen8. Dry running swash plate compressor according to one of the preceding claims, characterized in that for the lubrication and cooling of the contact areas between
Taumelscheibe (2) und Lageranordnung (3) das Gehäuse (10) Spritzölbohrungen (15) aufweist, durch welche Ol an die Kontaktbereiche abgegeben wird.Swash plate (2) and bearing assembly (3) the housing (10) has spray oil holes (15) through which oil is discharged to the contact areas.
9. Trockenlaufender Taumelscheibenverdichter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der die Taumelscheibe (2) umgebene Innenraum des9. Dry running swash plate compressor according to one of the preceding claims, characterized in that the swash plate (2) surrounded interior of the
Triebwerks von einem Kühlluftstrom durchströmt ist, um die aufgrund des Trockenlaufs entstehende Wärme nach außen abzuführen. Engine is flowed through by a cooling air flow to dissipate the heat generated due to the dry running to the outside.
EP05817800A 2004-12-20 2005-12-16 Dry running swashplate compressor comprising a coated swashplate Not-in-force EP1831551B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004061237A DE102004061237A1 (en) 2004-12-20 2004-12-20 Dry running swash plate compressor with a coated swash plate
PCT/EP2005/013601 WO2006066827A1 (en) 2004-12-20 2005-12-16 Dry running swashplate compressor comprising a coated swashplate

Publications (2)

Publication Number Publication Date
EP1831551A1 true EP1831551A1 (en) 2007-09-12
EP1831551B1 EP1831551B1 (en) 2008-10-08

Family

ID=35811720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05817800A Not-in-force EP1831551B1 (en) 2004-12-20 2005-12-16 Dry running swashplate compressor comprising a coated swashplate

Country Status (4)

Country Link
EP (1) EP1831551B1 (en)
AT (1) ATE410596T1 (en)
DE (2) DE102004061237A1 (en)
WO (1) WO2006066827A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9856866B2 (en) 2011-01-28 2018-01-02 Wabtec Holding Corp. Oil-free air compressor for rail vehicles
DE102017010095B4 (en) * 2016-11-01 2020-02-27 Hans Lütte Dry-running compressor with engine room through which suction gas flows

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE713155C (en) * 1940-01-18 1941-11-01 Hans Czerny Piston compressor with air cooling
WO1988005124A1 (en) * 1987-01-02 1988-07-14 Elsbett L Cooling and lubricating circuit of an axial engine
JP3085514B2 (en) * 1995-06-08 2000-09-11 株式会社豊田自動織機製作所 Compressor
DE19706066A1 (en) * 1997-02-17 1997-11-20 Hans Dipl Ing Unger Compressor providing compressed air in vehicle
JP2001263227A (en) * 2000-03-21 2001-09-26 Toyota Autom Loom Works Ltd Coating film forming method in swash plate of swash plate type compressor and swash plate therefor
JP2002039062A (en) * 2000-07-26 2002-02-06 Toyota Industries Corp Compressor
DE10214045B4 (en) * 2002-03-28 2015-07-16 Volkswagen Ag R 744 compressor for a vehicle air conditioning
JP4232506B2 (en) * 2002-06-24 2009-03-04 株式会社豊田自動織機 Sliding parts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006066827A1 *

Also Published As

Publication number Publication date
WO2006066827A1 (en) 2006-06-29
DE502005005658D1 (en) 2008-11-20
DE102004061237A1 (en) 2006-07-06
EP1831551B1 (en) 2008-10-08
ATE410596T1 (en) 2008-10-15

Similar Documents

Publication Publication Date Title
EP1831552B1 (en) Dry-running swash plate compressor with a piston-rod mounting
DE10109514C1 (en) Dry-running piston compressor, for rail vehicles, has lubricating nipples for external lubrication of the big end and/or gudgeon pin bearings to give long intervals between overhauls
EP1707812B1 (en) Reciprocating piston machine
DE102004048714A1 (en) Radial piston pump
EP1831551B1 (en) Dry running swashplate compressor comprising a coated swashplate
DE102006026220B4 (en) Fluid pump with crank mechanism
EP1454055B1 (en) Radial piston pump having force-feed lubrication
DE102005025869B4 (en) Low noise piston pump
EP1831553B1 (en) Dry-running swash-plate compressor with an antifriction bearing-mounted swash-plate
EP3615798A1 (en) Compressor assembly for a compressed-air feed of a compressed-air supply system
DE19955688A1 (en) Piston vacuum pump comprises a piston and a connecting rod which are joined to one another by means of an elastic unit
DE10208574A1 (en) Radial piston pump
EP1315906B1 (en) Piston compressor comprising a crankshaft whose mass is dynamically compensated, in particular for rail vehicles (detachable compensatory mass)
DE102017010095B4 (en) Dry-running compressor with engine room through which suction gas flows
DE102005061482A1 (en) reciprocating engine
EP1479909A1 (en) Piston rod of a compressor
WO2006066833A1 (en) Dry-running piston compressor
DE102010064053A1 (en) Eccentric drive for at least one piston of a piston pump
DE102009003097B4 (en) High-pressure pump, in particular radial piston pump, with at least one plunger body, a rotatable roller shoe, a roller and an axial contact point for the roller, which is arranged at a distance from the axis of rotation of the roller
EP1956240B1 (en) Crank drive for a piston compressor
DE10347190B4 (en) piston pump
DE102013210950A1 (en) Optimized ram assembly
DE102014017242B4 (en) Positive displacement pump for high pressures in non-lubricating media
DE2617879A1 (en) Heavy duty axial piston, swashplate pump or motor - has spherically shaped cylinder clearance space and cylinder block walls bulged locally
DE102012010967A1 (en) Crosshead/piston unit for e.g. piston engine, has cross-head bolts utilized for transmitting normal lateral forces of cross head on cap-shaped trained guide bush, and closure formed by work area and metal sheet tabs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070720

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20071213

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502005005658

Country of ref document: DE

Date of ref document: 20081120

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090108

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090119

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090218

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090208

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

BERE Be: lapsed

Owner name: KNORR-BREMSE SYSTEME FUR NUTZFAHRZEUGE G.M.B.H.

Effective date: 20081231

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

26N No opposition filed

Effective date: 20090709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20091218

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20091221

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20100105

Year of fee payment: 5

Ref country code: GB

Payment date: 20091221

Year of fee payment: 5

Ref country code: IT

Payment date: 20091223

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081216

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090409

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090109

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101216

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110831

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101216

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181220

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005005658

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200701