EP2711552A3 - Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss - Google Patents

Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss Download PDF

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Publication number
EP2711552A3
EP2711552A3 EP13181924.5A EP13181924A EP2711552A3 EP 2711552 A3 EP2711552 A3 EP 2711552A3 EP 13181924 A EP13181924 A EP 13181924A EP 2711552 A3 EP2711552 A3 EP 2711552A3
Authority
EP
European Patent Office
Prior art keywords
gears
cross
boundary lines
low pressure
pressure port
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
EP13181924.5A
Other languages
English (en)
French (fr)
Other versions
EP2711552A2 (de
EP2711552B1 (de
Inventor
Volker Fissler
Michael Wilhelm
Christian Boehmcker
Michael Fischer
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 EP2711552A2 publication Critical patent/EP2711552A2/de
Publication of EP2711552A3 publication Critical patent/EP2711552A3/de
Application granted granted Critical
Publication of EP2711552B1 publication Critical patent/EP2711552B1/de
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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement
    • 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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/101—Geometry of the inlet or outlet of the inlet

Abstract

Zahnradmaschine mit zwei im Außeneingriff miteinander kämmenden Zahnrädern (50), welche von einem Gehäuse umgeben sind, welches gegenüberliegend einen Hoch- und einen Niederdruckanschluss (33) aufweist. Erfindungsgemäß ist beiden Zahnrädern (50) an der Innenumfangsfläche des Gehäuses eine gedachte Grenzlinie (80) zugeordnet, welche das Ende (65) der Druckausgleichsfase (64) schneidet, wobei sie parallel zur Berührlinie (83) zwischen den Zahnköpfen (56) der Zahnräder (50) und der Innenumfangsfläche (31) verläuft, wobei die Schnittkante (85) zwischen den beiden Grenzlinien (80) angeordnet ist, wobei der minimale Abstand (81) zwischen der Schnittkante (85) und den Grenzlinien (80) wenigstens einen Teilungsabstand der Zahnräder (50) beträgt, wobei die Querschnittsform des Niederdruckanschlusses (33) derart von der Kreisform abweicht, dass seine die Zähnräder (50) überdeckende Querschnittsfläche (79) größer ist als die die Zahnräder (50) überdeckende Querschnittsfläche eines gedachten kreisförmigen Niederdruckanschlusses (82), der denselben minimalen Abstand (81) zu den Grenzlinien (80) aufweist.
EP13181924.5A 2012-09-24 2013-08-28 Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss Active EP2711552B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012217115.0A DE102012217115A1 (de) 2012-09-24 2012-09-24 Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss

Publications (3)

Publication Number Publication Date
EP2711552A2 EP2711552A2 (de) 2014-03-26
EP2711552A3 true EP2711552A3 (de) 2017-05-31
EP2711552B1 EP2711552B1 (de) 2019-02-27

Family

ID=49036461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13181924.5A Active EP2711552B1 (de) 2012-09-24 2013-08-28 Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss

Country Status (3)

Country Link
US (1) US9140258B2 (de)
EP (1) EP2711552B1 (de)
DE (1) DE102012217115A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6464640B2 (ja) * 2014-09-30 2019-02-06 ダイキン工業株式会社 歯車ポンプ又はモータ
WO2016147217A1 (ja) * 2015-03-17 2016-09-22 株式会社Tbk ギヤポンプ
JP2017223197A (ja) * 2016-06-17 2017-12-21 住友精密工業株式会社 液圧装置
WO2021044570A1 (ja) * 2019-09-05 2021-03-11 株式会社島津製作所 はすば歯車ポンプまたははすば歯車モータ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090820A (en) * 1975-06-24 1978-05-23 Kayabakogyokabushikikaisha Gear pump with low pressure shaft lubrication
US5190450A (en) * 1992-03-06 1993-03-02 Eastman Kodak Company Gear pump for high viscosity materials
DE102007031909A1 (de) * 2007-07-09 2009-01-15 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Umlaufverdrängerpumpe mit Druckpulsation minderndem Auslass
DE102009012853A1 (de) * 2009-03-12 2010-09-16 Robert Bosch Gmbh Hydraulische Zahnradmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554105C2 (de) * 1975-12-02 1984-04-05 Robert Bosch Gmbh, 7000 Stuttgart Zahnradmaschine (Pumpe oder Motor)
JPS55101786A (en) * 1979-01-26 1980-08-04 Kayaba Ind Co Ltd Construction of body bore in gear pump or motor
JP3830313B2 (ja) * 1999-09-06 2006-10-04 株式会社ジェイテクト ギヤポンプ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090820A (en) * 1975-06-24 1978-05-23 Kayabakogyokabushikikaisha Gear pump with low pressure shaft lubrication
US5190450A (en) * 1992-03-06 1993-03-02 Eastman Kodak Company Gear pump for high viscosity materials
DE102007031909A1 (de) * 2007-07-09 2009-01-15 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Umlaufverdrängerpumpe mit Druckpulsation minderndem Auslass
DE102009012853A1 (de) * 2009-03-12 2010-09-16 Robert Bosch Gmbh Hydraulische Zahnradmaschine

Also Published As

Publication number Publication date
US9140258B2 (en) 2015-09-22
EP2711552A2 (de) 2014-03-26
US20140086779A1 (en) 2014-03-27
EP2711552B1 (de) 2019-02-27
DE102012217115A1 (de) 2014-03-27

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