EP3561301A4 - Internal gear pump - Google Patents
Internal gear pump Download PDFInfo
- Publication number
- EP3561301A4 EP3561301A4 EP17885425.3A EP17885425A EP3561301A4 EP 3561301 A4 EP3561301 A4 EP 3561301A4 EP 17885425 A EP17885425 A EP 17885425A EP 3561301 A4 EP3561301 A4 EP 3561301A4
- 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.)
- Withdrawn
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
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- 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
- F04C2240/30—Casings or housings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016249898A JP6757243B2 (en) | 2016-12-22 | 2016-12-22 | Inscribed gear pump |
JP2017051812 | 2017-03-16 | ||
JP2017230482 | 2017-11-30 | ||
PCT/JP2017/045940 WO2018117217A1 (en) | 2016-12-22 | 2017-12-21 | Internal gear pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3561301A1 EP3561301A1 (en) | 2019-10-30 |
EP3561301A4 true EP3561301A4 (en) | 2020-05-13 |
Family
ID=62627389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17885425.3A Withdrawn EP3561301A4 (en) | 2016-12-22 | 2017-12-21 | Internal gear pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210131428A1 (en) |
EP (1) | EP3561301A4 (en) |
CN (1) | CN110114576A (en) |
WO (1) | WO2018117217A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6123482U (en) * | 1984-07-17 | 1986-02-12 | 株式会社 山田製作所 | Trochoid pump for engine lubrication |
JPH01148081U (en) * | 1988-03-31 | 1989-10-13 | ||
DE102006059131A1 (en) * | 2005-12-19 | 2007-06-21 | Dana Corp., Toledo | Liquid pump assembly |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4215160B2 (en) | 2003-10-01 | 2009-01-28 | 日立粉末冶金株式会社 | Internal gear pump and manufacturing method thereof |
JP5369068B2 (en) * | 2010-08-27 | 2013-12-18 | 日立オートモティブシステムズ株式会社 | Pump device |
JP6084435B2 (en) | 2012-08-08 | 2017-02-22 | Ntn株式会社 | Internal gear pump |
JP6271992B2 (en) * | 2013-12-13 | 2018-01-31 | Ntn株式会社 | Internal gear pump |
JP6313605B2 (en) * | 2014-02-06 | 2018-04-18 | Ntn株式会社 | Horizontal internal gear pump |
JP6329411B2 (en) | 2014-03-25 | 2018-05-23 | Ntn株式会社 | Internal gear pump |
-
2017
- 2017-12-21 EP EP17885425.3A patent/EP3561301A4/en not_active Withdrawn
- 2017-12-21 WO PCT/JP2017/045940 patent/WO2018117217A1/en unknown
- 2017-12-21 CN CN201780079405.0A patent/CN110114576A/en active Pending
- 2017-12-21 US US16/472,453 patent/US20210131428A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6123482U (en) * | 1984-07-17 | 1986-02-12 | 株式会社 山田製作所 | Trochoid pump for engine lubrication |
JPH01148081U (en) * | 1988-03-31 | 1989-10-13 | ||
DE102006059131A1 (en) * | 2005-12-19 | 2007-06-21 | Dana Corp., Toledo | Liquid pump assembly |
Non-Patent Citations (1)
Title |
---|
See also references of WO2018117217A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3561301A1 (en) | 2019-10-30 |
WO2018117217A1 (en) | 2018-06-28 |
US20210131428A1 (en) | 2021-05-06 |
CN110114576A (en) | 2019-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190708 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20200417 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F04C 14/26 20060101ALI20200408BHEP Ipc: F04C 2/10 20060101AFI20200408BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20200924 |