EP0361716A2 - Gerotorpumpen - Google Patents
Gerotorpumpen Download PDFInfo
- Publication number
- EP0361716A2 EP0361716A2 EP89309135A EP89309135A EP0361716A2 EP 0361716 A2 EP0361716 A2 EP 0361716A2 EP 89309135 A EP89309135 A EP 89309135A EP 89309135 A EP89309135 A EP 89309135A EP 0361716 A2 EP0361716 A2 EP 0361716A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- pump
- shaft
- gear
- journalled
- 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
Links
- 230000004323 axial length Effects 0.000 abstract description 3
- 241000239290 Araneae Species 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- F04C2/102—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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
Definitions
- This invention relates to gerotor pumps comprising a male lobed rotor meshed internally of a female lobed annulus.
- the annulus has more lobes - usually one more - than the rotor, and their axes are eccentric.
- the chambers bounded by the respective lobes open to an inlet, and on the other side of that plane they open to an outlet. Relative rotation causes said chambers to process about the axes and so vary in size thus inducing flow into the chambers on the inlet side and expelling it out on the outlet side.
- Such pumps are herein called "of the kind referred to”.
- Known pumps of this kind have the male rotor fast, for example keyed to a drive shaft which is essentially journalled over an axially extending zone, for example in the pump casing wall, possibly even at two axial locations, one on either side of the meshed parts.
- the shaft is also fast with a drive pulley, sprocket or gear (collectively called "gear”) at a further location.
- the object of the invention is to provide improvements and particularly to enable shorter axial length to be provided.
- a pump of the kind referred to is characterised by a shaft fast with the pump body and in that the rotor is journalled directly or indirectly on the shaft.
- the shaft is for example a force-fit in the body
- the length of shaft necessary for body engagement is substantially less than what is necessary for spaced bearings carrying a cantilevered shaft, or less than what is necessary for two axially spaced sets of bearings in other designs.
- the gear may be journalled directly on the shaft and the rotor carried by the gear.
- the gear may be journalled on the body and the rotor journalled directly on the shaft.
- a pump body 10 is provided with one or more inlet passages 12 opening through the side wall (not shown) to the cavity housing the annulus 14 and rotor 16.
- the outlet passage opens from that cavity. It will be appreciated that both inlet and outlet may open generally radially or tangentially from the cavity or through one or other side wall, or a combination of these according to requirements.
- Shaft 18 is fast in the body, for example being a press-fit.
- it is bushed at 20-22 to journal the rotor 16 and the drive gear 24 respectively.
- a passage system 30-32 shown in dotted line communicates with port 34 to allow lubrication of the bushes.
- the drive gear (or sprocket 24) is provided with axially extending dogs 28 (see Figure 2) which mesh with like dogs 26 in the rotor 16 so that the gear and rotor are directly dogged together for drive between them.
- the gear drives the rotor which drives the annulus at a different speed for the usual gerotor pumping action.
- the arrangement is generally similar except that here the gear 24 has a hub portion 38 extending over the full axial dimension of the rotor 16, so that the rotor may be considered to be indirectly journalled on the shaft.
- the hub and rotor are keyed or splined together at 46 for direct drive between them.
- shaft 18 carries bushes 20, 22 journalling rotor 16.
- Annulus 14 fits directly in a cylindrical body part 10, and on the exterior of that body part is a further bush 50 which is concentric with the axis of shaft 18 and which journals drive pinion 52.
- the pinion is connected by a spider 54 meshed at its outer periphery with the pinion 52 and splined at 56 on to an axial extension 58 integral with the rotor 16.
- pinion 52 drives the rotor 16 which in turn drives the annulus 14.
- the section is taken on a line non-diametric of the engaged rotor and annulus.
- pinion 52 is in this case splined at 60 to an axial extension 62 on the annulus 14.
- Rotor 16 is lined by bush 20 on the shaft 10, which as in Figure 4, is fast in the pump body.
- pinion 52 is splined at 56 to the axial extension 58 of the rotor 16 which is bushed 20, 22 to the shaft 18.
- the pinion is bushed at 50 onto the cylindrical part of the body 10.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89309135T ATE93933T1 (de) | 1988-09-28 | 1989-09-08 | Gerotorpumpen. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8822696 | 1988-09-28 | ||
GB888822696A GB8822696D0 (en) | 1988-09-28 | 1988-09-28 | Improvements relating to gerotor pumps |
GB8913368 | 1989-06-09 | ||
GB8913368A GB2223275B (en) | 1988-09-28 | 1989-06-09 | Improvements relating to gerotor pumps |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0361716A2 true EP0361716A2 (de) | 1990-04-04 |
EP0361716A3 EP0361716A3 (en) | 1990-07-11 |
EP0361716B1 EP0361716B1 (de) | 1993-09-01 |
Family
ID=26294448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89309135A Expired - Lifetime EP0361716B1 (de) | 1988-09-28 | 1989-09-08 | Gerotorpumpen |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0361716B1 (de) |
JP (1) | JPH02185682A (de) |
AR (1) | AR247277A1 (de) |
AU (1) | AU617002B2 (de) |
BR (1) | BR8904894A (de) |
CA (1) | CA1333857C (de) |
DE (1) | DE68908826T2 (de) |
DK (1) | DK172577B1 (de) |
ES (1) | ES2045459T3 (de) |
FI (1) | FI98949C (de) |
IE (1) | IE62731B1 (de) |
IN (1) | IN176246B (de) |
NO (1) | NO893845L (de) |
NZ (1) | NZ230719A (de) |
PT (1) | PT91814B (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457490A1 (de) * | 1990-05-12 | 1991-11-21 | Concentric Pumps Limited | Gerotorpumpen |
WO1994004824A1 (en) * | 1992-08-18 | 1994-03-03 | Concentric Pumps Limited | Compact gerotor pump |
WO1998021479A1 (de) * | 1996-11-12 | 1998-05-22 | Voith Turbo Gmbh & Co. Kg | Innenzahnradpumpe mit antrieb über das hohlrad |
WO2003074875A1 (en) * | 2002-03-06 | 2003-09-12 | Concentric Pumps Limited | Gerotor pump for vehicle transmission system |
CN105065259A (zh) * | 2015-08-27 | 2015-11-18 | 天津雷沃动力有限公司 | 一种柴油机机油泵的润滑结构 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9015291D0 (en) * | 1990-07-11 | 1990-08-29 | Concentric Pumps Ltd | Improvements in gerotor pumps |
DE102006008757A1 (de) * | 2006-02-24 | 2007-08-30 | Daimlerchrysler Ag | Förderpumpe in einem Kraftfahrzeug |
RU2472970C1 (ru) * | 2011-10-11 | 2013-01-20 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Героторный насос с торцовым входом |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1252446A (de) * | 1967-10-23 | 1971-11-03 | ||
FR2527683A1 (fr) * | 1982-05-31 | 1983-12-02 | Tovarna Motornih Vazil Tomos | Pompe a huile pour lubrification forcee d'un moteur a combustion interne a quatre temps |
DE3504306A1 (de) * | 1984-02-16 | 1985-08-22 | Volkswagenwerk Ag, 3180 Wolfsburg | Pumpe, insbesondere oelpumpe fuer eine brennkraftmaschine |
DE3506928A1 (de) * | 1985-02-27 | 1986-08-28 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Innenzahnradpumpe als schmieroelpumpe fuer einen verbrennungsmotor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029604Y2 (ja) * | 1981-06-16 | 1985-09-06 | 富士重工業株式会社 | 内燃機関の潤滑油ポンプ |
-
1989
- 1989-09-08 DE DE89309135T patent/DE68908826T2/de not_active Expired - Fee Related
- 1989-09-08 ES ES89309135T patent/ES2045459T3/es not_active Expired - Lifetime
- 1989-09-08 EP EP89309135A patent/EP0361716B1/de not_active Expired - Lifetime
- 1989-09-12 AU AU41287/89A patent/AU617002B2/en not_active Ceased
- 1989-09-12 IN IN815DE1989 patent/IN176246B/en unknown
- 1989-09-20 NZ NZ230719A patent/NZ230719A/xx unknown
- 1989-09-22 JP JP1247898A patent/JPH02185682A/ja active Pending
- 1989-09-26 PT PT91814A patent/PT91814B/pt not_active IP Right Cessation
- 1989-09-26 DK DK198904718A patent/DK172577B1/da not_active IP Right Cessation
- 1989-09-27 CA CA000613676A patent/CA1333857C/en not_active Expired - Fee Related
- 1989-09-27 BR BR898904894A patent/BR8904894A/pt not_active IP Right Cessation
- 1989-09-27 IE IE308789A patent/IE62731B1/en not_active IP Right Cessation
- 1989-09-27 NO NO89893845A patent/NO893845L/no unknown
- 1989-09-28 AR AR89315038A patent/AR247277A1/es active
- 1989-09-28 FI FI894603A patent/FI98949C/fi not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1252446A (de) * | 1967-10-23 | 1971-11-03 | ||
FR2527683A1 (fr) * | 1982-05-31 | 1983-12-02 | Tovarna Motornih Vazil Tomos | Pompe a huile pour lubrification forcee d'un moteur a combustion interne a quatre temps |
DE3504306A1 (de) * | 1984-02-16 | 1985-08-22 | Volkswagenwerk Ag, 3180 Wolfsburg | Pumpe, insbesondere oelpumpe fuer eine brennkraftmaschine |
DE3506928A1 (de) * | 1985-02-27 | 1986-08-28 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Innenzahnradpumpe als schmieroelpumpe fuer einen verbrennungsmotor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457490A1 (de) * | 1990-05-12 | 1991-11-21 | Concentric Pumps Limited | Gerotorpumpen |
WO1994004824A1 (en) * | 1992-08-18 | 1994-03-03 | Concentric Pumps Limited | Compact gerotor pump |
US5554019A (en) * | 1992-08-18 | 1996-09-10 | Concentric Pumps Limited | Compact gerotor pump |
WO1998021479A1 (de) * | 1996-11-12 | 1998-05-22 | Voith Turbo Gmbh & Co. Kg | Innenzahnradpumpe mit antrieb über das hohlrad |
WO2003074875A1 (en) * | 2002-03-06 | 2003-09-12 | Concentric Pumps Limited | Gerotor pump for vehicle transmission system |
CN105065259A (zh) * | 2015-08-27 | 2015-11-18 | 天津雷沃动力有限公司 | 一种柴油机机油泵的润滑结构 |
CN105065259B (zh) * | 2015-08-27 | 2018-02-23 | 天津雷沃动力有限公司 | 一种柴油机机油泵的润滑结构 |
Also Published As
Publication number | Publication date |
---|---|
NO893845D0 (no) | 1989-09-27 |
DE68908826D1 (de) | 1993-10-07 |
FI98949C (fi) | 1997-09-10 |
BR8904894A (pt) | 1990-05-08 |
CA1333857C (en) | 1995-01-10 |
EP0361716B1 (de) | 1993-09-01 |
IE893087L (en) | 1990-03-28 |
FI894603A0 (fi) | 1989-09-28 |
IN176246B (de) | 1996-03-23 |
FI894603A (fi) | 1990-03-29 |
PT91814B (pt) | 1995-08-09 |
ES2045459T3 (es) | 1994-01-16 |
AU617002B2 (en) | 1991-11-14 |
FI98949B (fi) | 1997-05-30 |
DK172577B1 (da) | 1999-02-01 |
AR247277A1 (es) | 1994-11-30 |
DE68908826T2 (de) | 1993-12-23 |
EP0361716A3 (en) | 1990-07-11 |
DK471889D0 (da) | 1989-09-26 |
IE62731B1 (en) | 1995-02-22 |
JPH02185682A (ja) | 1990-07-20 |
DK471889A (da) | 1990-03-29 |
NZ230719A (en) | 1991-09-25 |
NO893845L (no) | 1990-03-29 |
AU4128789A (en) | 1990-04-05 |
PT91814A (pt) | 1990-03-30 |
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