ATE308676T1 - RADIAL PISTON PUMP WITH FORCED LUBRICATION - Google Patents

RADIAL PISTON PUMP WITH FORCED LUBRICATION

Info

Publication number
ATE308676T1
ATE308676T1 AT02764536T AT02764536T ATE308676T1 AT E308676 T1 ATE308676 T1 AT E308676T1 AT 02764536 T AT02764536 T AT 02764536T AT 02764536 T AT02764536 T AT 02764536T AT E308676 T1 ATE308676 T1 AT E308676T1
Authority
AT
Austria
Prior art keywords
radial piston
plain bearing
pump
piston pump
bearing
Prior art date
Application number
AT02764536T
Other languages
German (de)
Inventor
Heinz Siegel
Helmut Rembold
Hans-Peter Stiefel
Karl Gmelin
Thomas Fuerst
Thilo Bolz
Original Assignee
Bosch Gmbh Robert
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
Priority claimed from DE10208574A external-priority patent/DE10208574A1/en
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE308676T1 publication Critical patent/ATE308676T1/en

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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention relates to a radial piston pump for an injection system of internal combustion engines, in which a first plain bearing (7) and a second plain bearing (17) are provided in the form of a hydrostatic plain bearing, whereby the necessary pressure is provided by a pre-feed pump that supplies fuel to the radial piston pump via a fuel connection (31). This increases the bearing capacity of both the first plain bearing (7) and the second plain bearing (17). In addition, the cooling of said plain bearings (7, 17) is improved. As a result, the inventive radial piston pump can be subjected to higher loads with regard to pump capacity and pump head and has a longer serviceable life than that of prior art radial piston pumps.
AT02764536T 2001-12-01 2002-08-06 RADIAL PISTON PUMP WITH FORCED LUBRICATION ATE308676T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10159099 2001-12-01
DE10208574A DE10208574A1 (en) 2001-12-01 2002-02-21 Radial piston pump
PCT/DE2002/002879 WO2003048564A1 (en) 2001-12-01 2002-08-06 Radial piston pump having force-feed lubrication

Publications (1)

Publication Number Publication Date
ATE308676T1 true ATE308676T1 (en) 2005-11-15

Family

ID=26010700

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02764536T ATE308676T1 (en) 2001-12-01 2002-08-06 RADIAL PISTON PUMP WITH FORCED LUBRICATION

Country Status (4)

Country Link
EP (1) EP1454055B1 (en)
AT (1) ATE308676T1 (en)
DE (1) DE50204804D1 (en)
WO (1) WO2003048564A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7273036B2 (en) 2002-10-31 2007-09-25 Robert Bosch Gmbh High-pressure fuel pump with a ball valve in the low-pressure inlet
DE102006048722A1 (en) * 2006-10-16 2008-04-17 Robert Bosch Gmbh Piston pump, in particular high-pressure fuel pump, with roller tappet
DE102007012704A1 (en) * 2007-03-16 2008-09-18 Robert Bosch Gmbh High pressure pump for delivering fuel with an improved design of the bearing assembly for supporting the camshaft
ITMI20072259A1 (en) * 2007-11-30 2009-06-01 Bosch Gmbh Robert HIGH PRESSURE PUMP
IT1398728B1 (en) * 2009-04-17 2013-03-18 Bosch Gmbh Robert LUBRICATION CIRCUIT FOR A HIGH PRESSURE COMMON RAIL PUMP AND HIGH PRESSURE COMMON RAIL PUMP
EP2660456B1 (en) * 2012-05-01 2017-12-06 Delphi International Operations Luxembourg S.à r.l. Fuel pump
GB201412187D0 (en) * 2014-07-09 2014-08-20 Delphi International Operations Luxembourg S.�.R.L. Pump assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126640B4 (en) * 1991-08-12 2005-06-16 Robert Bosch Gmbh Pump arrangement with a prefeed pump and a radial piston pump
DE19705205A1 (en) * 1997-02-12 1998-08-13 Bosch Gmbh Robert Piston pump, esp. high pressure fuel injection pump for IC engine
DE50013384D1 (en) * 1999-11-19 2006-10-12 Crt Common Rail Tech Ag High-pressure injection system with common rail
DE10012306C2 (en) * 2000-03-14 2003-12-24 Bosch Gmbh Robert Distributor injection pump

Also Published As

Publication number Publication date
WO2003048564A1 (en) 2003-06-12
EP1454055A1 (en) 2004-09-08
EP1454055B1 (en) 2005-11-02
DE50204804D1 (en) 2005-12-08

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee