WO2000049329A1 - Distributeur progressif avec systeme desmodromique hydraulique - Google Patents

Distributeur progressif avec systeme desmodromique hydraulique Download PDF

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Publication number
WO2000049329A1
WO2000049329A1 PCT/EP2000/001258 EP0001258W WO0049329A1 WO 2000049329 A1 WO2000049329 A1 WO 2000049329A1 EP 0001258 W EP0001258 W EP 0001258W WO 0049329 A1 WO0049329 A1 WO 0049329A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricant
piston
channel
outlet
pressure chambers
Prior art date
Application number
PCT/EP2000/001258
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen MARAWE
Original Assignee
Volkswagen Aktiengesellschaft
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 Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2000049329A1 publication Critical patent/WO2000049329A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N25/00—Distributing equipment with or without proportioning devices
    • F16N25/02—Distributing equipment with or without proportioning devices with reciprocating distributing slide valve

Definitions

  • the invention relates to a Progressi issuer with hydraulic positive control for central lubrication for the distribution of lubricants to a variety of lubrication points, in particular on a machine.
  • a progressive divider from Rebs with hydraulic positive control which essentially consists of a central lubricant inlet channel and transverse to this successively connected piston-cylinder units, the pressure chambers formed in the respective cylinder on both sides of the piston and annular grooves formed on the piston for a lubricant passage in the have substantially transverse to the piston longitudinal axis, and a channel system for the lubricant flow is formed.
  • This is formed from connecting channels arranged between the pressure chambers and the lubricant inlet channel, which serve both as inlet and outlet channels for the lubricant for the respective pressure chamber, and from these outlet channels.
  • the channel system and the ring grooves connect the pressure chambers either to the lubricant inlet channel for lubricating the pistons or to the outlet channel for lubricant delivery to a lubrication point.
  • the forced control is effected via the pistons loaded with the lubricant and each pressed to an end position, such that in the predetermined sequence the subsequent piston due to the (end) position of the previous piston, through which the passage of the connecting channel to the lubricant inlet channel via one of the annular grooves formed on this piston
  • BESTATIGUSNKOPIE is open, is loaded with lubricant.
  • the lubricant located in the second pressure chamber of the piston-cylinder unit is pressed through the connecting channel now serving there as an outlet channel and through the output channel released by a further annular groove formed in the previous piston.
  • this piston now controls the subsequent piston in the same manner described above.
  • the two end positions of each piston are predetermined by a stop arranged on the piston or on the front cylinder wall.
  • this known progressive divider is associated with a high noise level by the stops.
  • the lubricant also remains in the respective connection channel up to the connected pressure chamber and is not pushed through it, but is only moved back and forth in a compressed manner, because the lubricant inlet into the respective pressure chamber and the outlet on the pressure chamber side take place via the same connection channel.
  • a renewal of the lubricant located in the progressive divider, which becomes necessary at intervals, is complex, and a venting of the duct system and the pressure chambers associated with a renewal of the lubricant can only gradually, i.e. can be achieved after many piston strokes in the cylinder-piston units. Due to the back and forth movement of the lubricant in a pressure chamber and the connected connecting channel, the speed at which the progressive divider can supply the connected lubrication points in a jerk is limited.
  • the invention has for its object a Progressionneiler after
  • the invention then consists in the fact that in a progressive divider with piston-cylinder units connected to a central lubricant inlet channel essentially transversely to this, with pressure chambers formed in the respective cylinder on both sides of the piston and with a channel system for the lubricant flow in which the position and the formation of the piston causes positive control, the pressure chambers a lubricant inlet channel and have a lubricant outlet channel arranged separately therefrom, which advantageously open into the respective pressure chamber such that the piston stroke is hydraulically limited by lubricant remaining in the pressure chamber.
  • the openings of the channels are arranged at different distances from the respective cylinder end wall and / or radially offset, the lubricant outlet channel being at a greater distance from the latter than the lubricant inlet channel. This ensures that the piston does not strike the cylinder wall in one of its end positions during the stroke.
  • the radial displacement of the inlet and outlet permits the outlet to be arranged particularly close to the inlet with the piston extending axially, so that the stroke volume can be kept particularly small.
  • the channels can be arranged on the pressure chamber in such a way that the opening of the lubricant outlet channel is at a distance from the cylinder end wall and the opening of the lubricant inlet channel is provided between the latter and the cylinder wall or also in this.
  • the lubricant still present in the pressure chamber after this channel is closed is compressed and hydraulically brakes the piston while absorbing energy up to its point of reversal without it touching the cylinder end wall. This leads to a considerable reduction in noise on the working progressive divider.
  • a progressive divider can be designed in a block construction, in a disc construction or in a modular construction.
  • the individual piston-cylinder units are mounted in a number predetermined by the base body on a base body containing the lubricant inlet channel and the output channels with their outlet openings, and blind units can also be attached if the base plate is not used.
  • Fig. 2 the progressive divider on average through the piston-cylinder units with connected channels
  • 3a to 3d the progressive divider in successive distribution phases.
  • Fig. 1 shows the Progressiwer divider with a base body 1, in which the lubricant input channel E and six lubricant output channels AK 1 to AK 6 are formed, and three blocks 2, 3 and 4 with the pistons connected to it in succession transversely to the input channel E. -Cylinder units A, B and C.
  • Fig. 2 the progressive divider is shown in section through the piston-cylinder units A, B and C with the connected channel system, which in a known and therefore not described in detail in part in blocks 2, 3 and 4 and partly in Base body 1 is formed.
  • a pressure chamber D is formed, which is connected to a lubricant inlet channel (inlet channel) SE and a lubricant outlet channel (outlet channel) SA, depending on the position of the previously arranged piston 5, 6 or 7, the inlet channel SE is connected to the input channel E and the outlet channel SA is connected to the respective lubricant output channel AK 1 to AK 6.
  • the pistons 5, 6 and 7 are provided with two annular grooves 8 and 9 for producing either a passage in the inlet channel SE to the input channel E or a passage in the outlet channel SA to an output channel AK 1 to AK 6.
  • the inlet channels SE open at the front end into the respective pressure chamber D and the outlet channels SA at a distance from this front end, the distance corresponding to the diameter of the inlet channel.
  • the method of operation of the progressive egg characterized by a hydraulic positive control is described below with reference to FIGS. 3a to 3d.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne un distributeur progressif avec système desmodromique, comprenant au moins un canal d'entrée de lubrifiant, des unités piston-cylindre raccordées à celui-ci, présentant une entrée de lubrifiant et une sortie de lubrifiant, ainsi que des passages à lubrifiant formés sur le piston. Les chambres de pression sont reliées, en fonction de la position du piston dans une des autres unités piston-cylindre, au canal d'entrée de lubrifiant permettant à la pression de s'exercer sur le piston, ou bien à un canal de sortie de lubrifiant, servant à l'évacuation du lubrifiant. La commande desmodromique se fait par l'intermédiaire des pistons sollicités l'un après l'autre par le lubrifiant et poussés chacun jusqu'à une position terminale prédéterminée. Grâce à l'invention, le distributeur progressif est constitué de telle sorte qu'il fonctionne de façon silencieuse à une vitesse élevée. A cet effet, les chambres de pression (D) sont reliées à un canal d'entrée de lubrifiant (SE) et à un canal de sortie de lubrifiant (SA), séparé du canal d'entrée, et les deux positions terminales de chacun des pistons (5, 6, 7) sont déterminées hydrauliquement par le lubrifiant restant dans les chambres de pression (D).
PCT/EP2000/001258 1999-02-17 2000-02-16 Distributeur progressif avec systeme desmodromique hydraulique WO2000049329A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999106524 DE19906524A1 (de) 1999-02-17 1999-02-17 Progressivverteiler mit hydraulischer Zwangssteuerung
DE19906524.1 1999-02-17

Publications (1)

Publication Number Publication Date
WO2000049329A1 true WO2000049329A1 (fr) 2000-08-24

Family

ID=7897729

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/001258 WO2000049329A1 (fr) 1999-02-17 2000-02-16 Distributeur progressif avec systeme desmodromique hydraulique

Country Status (2)

Country Link
DE (1) DE19906524A1 (fr)
WO (1) WO2000049329A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467222A (en) * 1967-02-14 1969-09-16 Eaton Yale & Towne Progressive lubricant feeder with cross porting
FR2367967A1 (fr) * 1976-10-14 1978-05-12 Limon Fluhme & Co De Distributeur a quatre orifices et deux positions
DE3101732A1 (de) * 1981-01-21 1982-08-26 Alexander Dipl.-Ing. 4030 Ratingen Rebs Zentralschmierverteiler
US4609073A (en) * 1984-04-30 1986-09-02 Horst Knaebel Progressive distributor for lubricants
US5497852A (en) * 1995-04-12 1996-03-12 Mcneil Corporation Automatic lubrication system
US5810115A (en) * 1996-10-31 1998-09-22 Lubriquip, Inc. Pressure bypass accessory for a series progressive divider valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112030U1 (de) * 1991-09-26 1991-11-14 Baier & Köppel GmbH & Co Präzisionsapparate, 8570 Pegnitz Progressivverteiler für Schmierstoffe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467222A (en) * 1967-02-14 1969-09-16 Eaton Yale & Towne Progressive lubricant feeder with cross porting
FR2367967A1 (fr) * 1976-10-14 1978-05-12 Limon Fluhme & Co De Distributeur a quatre orifices et deux positions
DE3101732A1 (de) * 1981-01-21 1982-08-26 Alexander Dipl.-Ing. 4030 Ratingen Rebs Zentralschmierverteiler
US4609073A (en) * 1984-04-30 1986-09-02 Horst Knaebel Progressive distributor for lubricants
US5497852A (en) * 1995-04-12 1996-03-12 Mcneil Corporation Automatic lubrication system
US5810115A (en) * 1996-10-31 1998-09-22 Lubriquip, Inc. Pressure bypass accessory for a series progressive divider valve

Also Published As

Publication number Publication date
DE19906524A1 (de) 2000-08-31

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