EP3828415A4 - Internal gear pump - Google Patents

Internal gear pump Download PDF

Info

Publication number
EP3828415A4
EP3828415A4 EP18941686.0A EP18941686A EP3828415A4 EP 3828415 A4 EP3828415 A4 EP 3828415A4 EP 18941686 A EP18941686 A EP 18941686A EP 3828415 A4 EP3828415 A4 EP 3828415A4
Authority
EP
European Patent Office
Prior art keywords
internal gear
gear pump
pump
internal
gear
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
EP18941686.0A
Other languages
German (de)
French (fr)
Other versions
EP3828415A1 (en
EP3828415B1 (en
Inventor
Kei Yoshida
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.)
Sumitomo Precision Products Co Ltd
Original Assignee
Sumitomo Precision Products Co Ltd
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 Sumitomo Precision Products Co Ltd filed Critical Sumitomo Precision Products Co Ltd
Publication of EP3828415A1 publication Critical patent/EP3828415A1/en
Publication of EP3828415A4 publication Critical patent/EP3828415A4/en
Application granted granted Critical
Publication of EP3828415B1 publication Critical patent/EP3828415B1/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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • F04C15/0088—Lubrication
    • 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
    • F04C2/086—Carter
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP18941686.0A 2018-11-26 2018-11-26 Internal gear pump Active EP3828415B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/043438 WO2020110180A1 (en) 2018-11-26 2018-11-26 Internal gear pump

Publications (3)

Publication Number Publication Date
EP3828415A1 EP3828415A1 (en) 2021-06-02
EP3828415A4 true EP3828415A4 (en) 2021-07-21
EP3828415B1 EP3828415B1 (en) 2022-08-03

Family

ID=66730657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18941686.0A Active EP3828415B1 (en) 2018-11-26 2018-11-26 Internal gear pump

Country Status (4)

Country Link
EP (1) EP3828415B1 (en)
JP (1) JP6526371B1 (en)
CN (1) CN112639290B (en)
WO (1) WO2020110180A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7360907B2 (en) * 2019-11-15 2023-10-13 住友精密工業株式会社 gear pump
DE112020007082T5 (en) * 2020-11-17 2023-02-16 Mitsubishi Electric Corporation Additive manufacturing apparatus and additive manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179385U (en) * 1985-04-26 1986-11-08
DE102012215023A1 (en) * 2012-06-29 2014-01-02 Robert Bosch Gmbh Internal gear pump used as hydraulic pump for fuel injection system for motor car, has fluid storage space that is formed between radially outward facing surface of ring gear and radially inward facing surface of ring bearing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171885U (en) * 1985-04-15 1986-10-25
JPS62158181U (en) 1986-03-28 1987-10-07
JP3810445B2 (en) 1993-11-26 2006-08-16 アイシン精機株式会社 Trochoid oil pump
CN201363269Y (en) * 2009-02-13 2009-12-16 王乃刚 Circular arc tooth conjugated inner gearing gear pump
CN102141035B (en) * 2011-04-13 2013-04-24 徐州科源液压有限公司 High-pressure gear pump with intermediate-pressure bearing lubrication
DE102011115993A1 (en) * 2011-10-14 2013-04-18 Robert Bosch Gmbh Hydrostatic internal-gear machine used as internal gear pump, has high-pressure working chamber that is provided between ring gear and pinion and sealed against low-pressure working chamber
JP6115156B2 (en) * 2013-01-31 2017-04-19 株式会社豊田自動織機 Inscribed gear pump
JP2016033337A (en) * 2014-07-31 2016-03-10 ダイハツ工業株式会社 Oil pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179385U (en) * 1985-04-26 1986-11-08
DE102012215023A1 (en) * 2012-06-29 2014-01-02 Robert Bosch Gmbh Internal gear pump used as hydraulic pump for fuel injection system for motor car, has fluid storage space that is formed between radially outward facing surface of ring gear and radially inward facing surface of ring bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020110180A1 *

Also Published As

Publication number Publication date
JPWO2020110180A1 (en) 2021-02-15
JP6526371B1 (en) 2019-06-05
CN112639290B (en) 2021-10-08
WO2020110180A1 (en) 2020-06-04
EP3828415A1 (en) 2021-06-02
CN112639290A (en) 2021-04-09
EP3828415B1 (en) 2022-08-03

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