EP0816675A3 - Arrangement for stabilizing the eccentric ring of a radial piston pump - Google Patents

Arrangement for stabilizing the eccentric ring of a radial piston pump Download PDF

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Publication number
EP0816675A3
EP0816675A3 EP97110504A EP97110504A EP0816675A3 EP 0816675 A3 EP0816675 A3 EP 0816675A3 EP 97110504 A EP97110504 A EP 97110504A EP 97110504 A EP97110504 A EP 97110504A EP 0816675 A3 EP0816675 A3 EP 0816675A3
Authority
EP
European Patent Office
Prior art keywords
pump
eccentric ring
eccentric
element arrangement
displacement element
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
EP97110504A
Other languages
German (de)
French (fr)
Other versions
EP0816675B1 (en
EP0816675A2 (en
Inventor
Bernhard Arnold
Egon Eisenbacher
Franz Pawellek
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.)
Siemens AG
Original Assignee
Mannesmann Rexroth AG
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 Mannesmann Rexroth AG filed Critical Mannesmann Rexroth AG
Publication of EP0816675A2 publication Critical patent/EP0816675A2/en
Publication of EP0816675A3 publication Critical patent/EP0816675A3/en
Application granted granted Critical
Publication of EP0816675B1 publication Critical patent/EP0816675B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders

Landscapes

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

Abstract

Beschrieben wird eine Vorrichtung zur Stabilisierung des Exzenterrings einer Radialkolbenpumpe mit mehreren, von einer gemeinsamen Exzenterwelle angetriebenen Kolben, die jeweils in einem im Pumpengehäuse fixierten Zylindereinsatz gleitbeweglich geführt sind und sich an abgeflachten Stützflächen des Exzenterrings abstützen, der drehbar auf einem Exzenter der Exzenterwelle gelagert ist. Um in allen Betriebszuständen der Pumpe und damit insbesondere in den Zuständen, in denen für die Pumpenkammern eine Unterversorgung vorliegt, zu verhindern, daß Dreh-/Kippschwingungen des Exzenterrings auftreten, ist eine hydraulische Verdrängerelementanordnung vorgesehen, mit der der Exzenterring in jeder Bewegungsphase der Pumpe durch aktive Druckbeaufschlagung der Verdrängerelementanordnung stabilisierbar ist. Mit dieser Verdrängerelementanordnung ist durch das Hinzufügen einer Schlitzsteuerungseinrichtung, eines Rückschlagventils, sowie eines Druckkanals und eines Saugkanals die Ausführung der Funktion einer Vorförderpumpe möglich.

Figure 00000001
A device is described for stabilizing the eccentric ring of a radial piston pump with several pistons driven by a common eccentric shaft, each of which is slidably guided in a cylinder insert fixed in the pump housing and is supported on flattened support surfaces of the eccentric ring, which is rotatably mounted on an eccentric of the eccentric shaft. In order to prevent torsional / tilting vibrations of the eccentric ring from occurring in all operating states of the pump, and in particular in the states in which there is an undersupply for the pump chambers, a hydraulic displacement element arrangement is provided with which the eccentric ring moves through in every phase of the pump's movement active pressurization of the displacement element arrangement can be stabilized. With this displacement element arrangement, the function of a pre-feed pump can be carried out by adding a slot control device, a check valve, as well as a pressure channel and a suction channel.
Figure 00000001
EP97110504A 1996-07-01 1997-06-26 Arrangement for stabilizing the eccentric ring of a radial piston pump Expired - Lifetime EP0816675B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19626399 1996-07-01
DE19626399 1996-07-01
DE19642735 1996-10-16
DE19642735 1996-10-16

Publications (3)

Publication Number Publication Date
EP0816675A2 EP0816675A2 (en) 1998-01-07
EP0816675A3 true EP0816675A3 (en) 1998-09-09
EP0816675B1 EP0816675B1 (en) 2002-04-10

Family

ID=26027088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110504A Expired - Lifetime EP0816675B1 (en) 1996-07-01 1997-06-26 Arrangement for stabilizing the eccentric ring of a radial piston pump

Country Status (2)

Country Link
EP (1) EP0816675B1 (en)
DE (2) DE19727249A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735371B4 (en) * 1997-08-14 2004-02-19 Siemens Ag Fuel pump with a pump cylinder
DE19801353A1 (en) * 1998-01-16 1999-07-22 Bosch Gmbh Robert Radial piston pump providing HP fuel for fuel injection systems of internal combustion engines, especially with common rail injection system
DE19801398A1 (en) * 1998-01-16 1999-07-22 Bosch Gmbh Robert Radial piston pump for the fuel delivery to a motor fuel injection system
DE19802476A1 (en) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Pump fitting to supply fuel at high pressure for common rail fuel injection system of internal combustion engine
DE19802475A1 (en) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Radial piston pump to supply fuel at high pressure for fuel injection system of internal combustion engine
DE19841642C2 (en) * 1998-09-11 2002-07-18 Bosch Gmbh Robert Radial piston pump
DE19844326B4 (en) * 1998-09-28 2006-01-05 Robert Bosch Gmbh Radial piston pump
DE19902324A1 (en) * 1999-01-21 2000-07-27 Mannesmann Rexroth Ag high pressure pump
DE19906625B4 (en) * 1999-02-17 2012-03-01 Continental Automotive Gmbh delivery unit
DE19909329A1 (en) * 1999-03-03 2000-09-07 Mannesmann Rexroth Ag Fuel injection system for internal combustion engine, with valve device to block flushing channel below minimum supply pressure of pre-supply pump
AT410246B (en) * 1999-06-25 2003-03-25 Hoerbiger Hydraulik RADIAL PISTON PUMP
DE19949166A1 (en) 1999-10-12 2001-04-26 Siemens Ag Stabilization device for eccentric ring of radial piston pump has additional circular guide for shaft of ring or pump frame, offset relative to central axis of eccentric
DE19956092A1 (en) * 1999-11-22 2000-10-26 Siemens Ag Piston pump, especially high-pressure radial piston pump
DE10024450A1 (en) * 2000-05-18 2001-11-22 Zahnradfabrik Friedrichshafen Flat seal for hydraulic control system has control channel connection diaphragms smaller than the channels, and is no less than 1,00mm thick
DE10200792A1 (en) * 2002-01-11 2003-07-31 Bosch Gmbh Robert Fuel pump for an internal combustion engine
DE10300144B3 (en) * 2003-01-07 2004-05-19 Siemens Ag Radial piston pump comprises a sliding block and a support piston connected by a form-locking snap-in connection
DE602005015933D1 (en) * 2005-03-24 2009-09-24 Delphi Tech Inc Fuel pump
DE102006042765A1 (en) * 2006-09-12 2008-03-27 Siemens Ag Hold-down device for high pressure piston of high-pressure pump, has outer contact surface for connecting pressing ring with retaining sleeve, where pressing ring has radial cross section, in which contact surfaces have different directions
DE112011104511A5 (en) 2010-12-23 2013-10-17 Schaeffler Technologies AG & Co. KG RADIAL PISTON PUMP
DE102013212491A1 (en) 2013-06-27 2014-12-31 Schaeffler Technologies Gmbh & Co. Kg Adjustable coolant pump of an internal combustion engine
CN113669320B (en) * 2021-08-12 2023-05-26 华侨大学 End face control hydraulic control check valve flow distribution radial plunger hydraulic device and working method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB491336A (en) * 1937-05-13 1938-08-31 Charles Hyland Improvements in or relating to reciprocating pumps
US2650543A (en) * 1944-10-28 1953-09-01 Installation Et D App Soc D High-pressure radial piston pump for liquids
DE2848207A1 (en) * 1978-11-07 1980-05-14 Bosch Gmbh Robert Shaft eccentric driven hydraulic piston pump - has inlet port formed through base of piston and piston shoe guide
DE3510634A1 (en) * 1984-04-06 1985-10-17 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Radial-piston pump
DE3522479A1 (en) * 1984-06-23 1986-01-02 Pitcraft Summit Ltd., Barnsley, Yorkshire PUMP FOR A HYDRAULIC MEDIUM
EP0204136A1 (en) * 1983-01-17 1986-12-10 Karl Eickmann High pressure radial piston maschine, comprising means for securing the piston shoe
DE3919267A1 (en) * 1988-06-15 1989-12-28 Deere & Co RADIAL PISTON PUMP AND VALVE PISTON INSERT
DE4126640A1 (en) * 1991-08-12 1993-03-04 Rexroth Mannesmann Gmbh Two=stage pump for liquids - uses fluid from low pressure stage to cool stressed parts of high pressure pump
DE19612412A1 (en) * 1996-03-28 1997-10-02 Rexroth Mannesmann Gmbh Control of fuel pressure in injector system for diesel engine
DE19640596A1 (en) * 1996-10-01 1998-04-02 Rexroth Mannesmann Gmbh Radial piston pump

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB491336A (en) * 1937-05-13 1938-08-31 Charles Hyland Improvements in or relating to reciprocating pumps
US2650543A (en) * 1944-10-28 1953-09-01 Installation Et D App Soc D High-pressure radial piston pump for liquids
DE2848207A1 (en) * 1978-11-07 1980-05-14 Bosch Gmbh Robert Shaft eccentric driven hydraulic piston pump - has inlet port formed through base of piston and piston shoe guide
EP0204136A1 (en) * 1983-01-17 1986-12-10 Karl Eickmann High pressure radial piston maschine, comprising means for securing the piston shoe
DE3510634A1 (en) * 1984-04-06 1985-10-17 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Radial-piston pump
DE3522479A1 (en) * 1984-06-23 1986-01-02 Pitcraft Summit Ltd., Barnsley, Yorkshire PUMP FOR A HYDRAULIC MEDIUM
DE3919267A1 (en) * 1988-06-15 1989-12-28 Deere & Co RADIAL PISTON PUMP AND VALVE PISTON INSERT
DE4126640A1 (en) * 1991-08-12 1993-03-04 Rexroth Mannesmann Gmbh Two=stage pump for liquids - uses fluid from low pressure stage to cool stressed parts of high pressure pump
DE19612412A1 (en) * 1996-03-28 1997-10-02 Rexroth Mannesmann Gmbh Control of fuel pressure in injector system for diesel engine
DE19640596A1 (en) * 1996-10-01 1998-04-02 Rexroth Mannesmann Gmbh Radial piston pump

Also Published As

Publication number Publication date
DE19727249A1 (en) 1998-01-08
DE59706937D1 (en) 2002-05-16
EP0816675B1 (en) 2002-04-10
EP0816675A2 (en) 1998-01-07

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