EP1927753A3 - Conveying unit - Google Patents

Conveying unit Download PDF

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Publication number
EP1927753A3
EP1927753A3 EP07117628.3A EP07117628A EP1927753A3 EP 1927753 A3 EP1927753 A3 EP 1927753A3 EP 07117628 A EP07117628 A EP 07117628A EP 1927753 A3 EP1927753 A3 EP 1927753A3
Authority
EP
European Patent Office
Prior art keywords
pump cells
conveying unit
housing
delivery unit
accommodated
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
EP07117628.3A
Other languages
German (de)
French (fr)
Other versions
EP1927753B1 (en
EP1927753A2 (en
Inventor
Heinz Siegel
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 EP1927753A2 publication Critical patent/EP1927753A2/en
Publication of EP1927753A3 publication Critical patent/EP1927753A3/en
Application granted granted Critical
Publication of EP1927753B1 publication Critical patent/EP1927753B1/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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable

Landscapes

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

Abstract

Die Erfindung bezieht sich auf ein Förderaggregat (30, 80), insbesondere für ein Hydraulikfluid zur Betätigung von Stellgliedern und/oder zur Begrenzung von Volumenströmen. Das Förderaggregat (30, 80) umfasst ein Gehäuse (12) mit mindestens zwei Pumpenzellen (32, 34). Die Pumpenzellen (32, 34) sind über ein Schaltventil (50, 70) schaltbar. Im Gehäuse (12) ist eine Antriebswelle (14) aufgenommen. Die mindestens zwei Pumpenzellen (32, 34) weisen voneinander verschiedene Fördervolumina auf.

Figure imgaf001
The invention relates to a delivery unit (30, 80), in particular for a hydraulic fluid for actuating actuators and / or for limiting volume flows. The delivery unit (30, 80) comprises a housing (12) with at least two pump cells (32, 34). The pump cells (32, 34) can be switched via a switching valve (50, 70). In the housing (12) a drive shaft (14) is accommodated. The at least two pump cells (32, 34) have different delivery volumes from each other.
Figure imgaf001
EP07117628.3A 2006-12-01 2007-10-01 Conveying unit Not-in-force EP1927753B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610056843 DE102006056843A1 (en) 2006-12-01 2006-12-01 delivery unit

Publications (3)

Publication Number Publication Date
EP1927753A2 EP1927753A2 (en) 2008-06-04
EP1927753A3 true EP1927753A3 (en) 2014-01-22
EP1927753B1 EP1927753B1 (en) 2017-08-09

Family

ID=39198195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117628.3A Not-in-force EP1927753B1 (en) 2006-12-01 2007-10-01 Conveying unit

Country Status (2)

Country Link
EP (1) EP1927753B1 (en)
DE (1) DE102006056843A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054767A1 (en) 2008-12-16 2010-06-17 Robert Bosch Gmbh Conveying device, particularly gear wheel pump, has housing, with two housing units, where conveyor elements are formed as gear wheels and are inserted between two housing units
DE102008054751A1 (en) 2008-12-16 2010-06-17 Robert Bosch Gmbh External gear pump for supplying of fuel in fuel-injection system of internal combustion engine, has two rotatable gear wheels which are engaged together, where bearing surface is arranged radially outward to gear wheel
DE102008054755A1 (en) 2008-12-16 2010-06-17 Robert Bosch Gmbh Conveying device, particularly gear wheel pump, has housing, where surfaces of housing units have mounting surfaces for mounting conveyor elements
DE102008054758A1 (en) 2008-12-16 2010-06-17 Robert Bosch Gmbh delivery unit
US20100266437A1 (en) * 2009-04-16 2010-10-21 Argo-Tech Corporation Aircraft main engine fuel pump with multiple gear stages using shared journals
US9611847B2 (en) 2009-04-16 2017-04-04 Eaton Industrial Corporation Aircraft main engine fuel pump with multiple gear stages using shared journals
DE102009028164A1 (en) 2009-07-31 2011-02-03 Robert Bosch Gmbh Pump i.e. gear pump, for common-rail-fuel injection system of internal combustion engine of motor vehicle, has compressible damping element arranged on pressure channel of pump and made of plastic or elastomer
DE102009028444A1 (en) 2009-08-11 2011-02-17 Robert Bosch Gmbh Pressure limiting valve for hydraulic system, has two inputs and two outputs, where valve unit engages closing position, when both inputs obtains approximately low pressure
DE102009028442A1 (en) 2009-08-11 2011-02-17 Robert Bosch Gmbh Toothed wheel pump for use in common-rail-fuel injection system for combustion engine, has suction side and pressure side, where pressure-sided reverse flow channel manufactures hydraulic connection between pressure side and conveyor spaces
DE102009047610A1 (en) 2009-12-08 2011-06-09 Robert Bosch Gmbh External gear pump
DE102012111637A1 (en) * 2012-11-30 2014-06-05 Trw Automotive Gmbh Pump unit, especially for motor vehicles
KR101680648B1 (en) * 2015-09-10 2016-11-30 명화공업주식회사 Dual pump system
US9902251B2 (en) 2016-01-26 2018-02-27 Deere & Company Recess-mounted hydraulic pump cartridge and work vehicle drivetrain therewith
CN114876789B (en) * 2022-01-25 2024-01-23 重庆正丰汇机械制造有限公司 Variable-speed multi-gear pump and application method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958494A (en) * 1974-09-30 1976-05-25 Moog Inc. Multiple displacement hydraulic motor drive apparatus
DE3837599A1 (en) * 1988-11-05 1990-05-10 Daimler Benz Ag Gear pump having two pairs of gear wheels arranged next to one another in the pump casing
DE19933484A1 (en) * 1999-07-16 2001-01-18 Bayerische Motoren Werke Ag Pump unit for lubrication system of internal combustion engine, in which on of internal rotors has device for controlled interruption of drive connection
EP1441126A2 (en) * 2003-01-24 2004-07-28 Kabushiki Kaisha Toyota Jidoshokki Multistage gear pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958494A (en) * 1974-09-30 1976-05-25 Moog Inc. Multiple displacement hydraulic motor drive apparatus
DE3837599A1 (en) * 1988-11-05 1990-05-10 Daimler Benz Ag Gear pump having two pairs of gear wheels arranged next to one another in the pump casing
DE19933484A1 (en) * 1999-07-16 2001-01-18 Bayerische Motoren Werke Ag Pump unit for lubrication system of internal combustion engine, in which on of internal rotors has device for controlled interruption of drive connection
EP1441126A2 (en) * 2003-01-24 2004-07-28 Kabushiki Kaisha Toyota Jidoshokki Multistage gear pump

Also Published As

Publication number Publication date
EP1927753B1 (en) 2017-08-09
DE102006056843A1 (en) 2008-06-05
EP1927753A2 (en) 2008-06-04

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