EP2657525A3 - Gear machine with an axial seal stretching into the area of radial exterior surface of the correponding bearing support - Google Patents

Gear machine with an axial seal stretching into the area of radial exterior surface of the correponding bearing support Download PDF

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Publication number
EP2657525A3
EP2657525A3 EP13161225.1A EP13161225A EP2657525A3 EP 2657525 A3 EP2657525 A3 EP 2657525A3 EP 13161225 A EP13161225 A EP 13161225A EP 2657525 A3 EP2657525 A3 EP 2657525A3
Authority
EP
European Patent Office
Prior art keywords
bearing body
correponding
gear machine
area
exterior surface
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
EP13161225.1A
Other languages
German (de)
French (fr)
Other versions
EP2657525A2 (en
EP2657525B1 (en
Inventor
Kai Sutter
Marc Laetzel
Stefan Cerny
Dieter Haecker
Ruediger Weiss
Christoph Kessler
Andreas Leinberger
Sebastian Birk
Guido Bredenfeld
Dietmar Schwuchow
Michael Wilhelm
Heinz Martin
Andreas Klaiber
Markus Stahl
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2657525A2 publication Critical patent/EP2657525A2/en
Publication of EP2657525A3 publication Critical patent/EP2657525A3/en
Application granted granted Critical
Publication of EP2657525B1 publication Critical patent/EP2657525B1/en
Active 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/56—Bearing bushings or details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Sealing Devices (AREA)

Abstract

Außenzahnradmaschine mit einem Gehäuse (31;40;41), dessen Innenraum (11) sich mit einer konstanten an die Zahnräder angepassten Querschnittsform entlang einer Längsrichtung (17) erstreckt, wobei wenigstens ein Lagerkörper (50) vorgesehen ist, der bezüglich der Längsrichtung (17) neben den Zahnrädern angeordnet ist, wobei dessen radiale Außenoberfläche (55) an den Innenraum dichtend angepasst ist, wobei er in Längsrichtung (17) beweglich ist, wobei die Zahnräder in dem wenigstens einen Lagerkörper (50) drehbar gelagert sind, wobei dem wenigstens einen Lagerkörper (50) eine langgestreckte, elastische Dichtung (60) zugeordnet ist, welche das Gehäuse dichtend berührt, wobei sich die Dichtung (60) abschnittsweise in einer Axialebene erstreckt, die senkrecht zur Längsachse (17) ausgerichtet ist.External gear machine having a housing (31; 40; 41) whose interior (11) extends with a constant cross-sectional shape adapted to the gears along a longitudinal direction (17), at least one bearing body (50) being provided with respect to the longitudinal direction (17 ) is arranged adjacent to the gears, wherein the radial outer surface (55) is sealingly adapted to the interior, wherein it is movable in the longitudinal direction (17), wherein the gears in the at least one bearing body (50) are rotatably mounted, wherein the at least one Bearing body (50) is associated with an elongated elastic seal (60) which sealingly contacts the housing, wherein the seal (60) extends in sections in an axial plane which is aligned perpendicular to the longitudinal axis (17).

Erfindungsgemäß weist die Dichtung (60) wenigstens einen Richtungswechsel (63) auf, wobei sie sich mit einem zugeordneten Endbereich (61) entlang der radialen Außenoberfläche (55) des zugeordneten Lagerkörpers (50) erstreckt.

Figure imgaf001
According to the invention, the seal (60) at least one direction change (63), wherein it extends with an associated end portion (61) along the radial outer surface (55) of the associated bearing body (50).
Figure imgaf001
EP13161225.1A 2012-04-27 2013-03-27 Gear machine with an axial seal stretching into the area of radial exterior surface of the correponding bearing support Active EP2657525B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012207078A DE102012207078A1 (en) 2012-04-27 2012-04-27 Gear machine with an axial seal, which extends in the region of the radial outer surface of the associated bearing body

Publications (3)

Publication Number Publication Date
EP2657525A2 EP2657525A2 (en) 2013-10-30
EP2657525A3 true EP2657525A3 (en) 2015-12-30
EP2657525B1 EP2657525B1 (en) 2017-10-18

Family

ID=48049782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13161225.1A Active EP2657525B1 (en) 2012-04-27 2013-03-27 Gear machine with an axial seal stretching into the area of radial exterior surface of the correponding bearing support

Country Status (2)

Country Link
EP (1) EP2657525B1 (en)
DE (1) DE102012207078A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016213636A1 (en) * 2016-07-26 2018-02-01 Robert Bosch Gmbh External gear pump for a waste heat recovery system
DE102017207486A1 (en) * 2017-05-04 2018-11-08 Robert Bosch Gmbh External gear machine, exhaust heat recovery system with an external gear machine
US10962059B2 (en) 2019-06-17 2021-03-30 Hamilton Sundstrand Corporation Bearing with an eccentric seal groove
DE102019130723A1 (en) * 2019-11-14 2021-05-20 Fte Automotive Gmbh Liquid pump
DE102021004717A1 (en) 2021-09-20 2023-03-23 Oerlikon Textile Gmbh & Co. Kg Dosing pump for conveying abrasive fluids

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137239A (en) * 1962-04-27 1964-06-16 Borg Warner Pressure loaded pumps
DE2847711A1 (en) * 1978-11-03 1980-05-14 Bosch Gmbh Robert GEAR MACHINE (PUMP OR HYDROMOTOR)
EP1515045A2 (en) * 2003-09-11 2005-03-16 Haldex Hydraulics Corporation Gear motor with start up control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137239A (en) * 1962-04-27 1964-06-16 Borg Warner Pressure loaded pumps
DE2847711A1 (en) * 1978-11-03 1980-05-14 Bosch Gmbh Robert GEAR MACHINE (PUMP OR HYDROMOTOR)
EP1515045A2 (en) * 2003-09-11 2005-03-16 Haldex Hydraulics Corporation Gear motor with start up control

Also Published As

Publication number Publication date
EP2657525A2 (en) 2013-10-30
EP2657525B1 (en) 2017-10-18
DE102012207078A1 (en) 2013-10-31

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