IT1271052B - INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS - Google Patents

INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS

Info

Publication number
IT1271052B
IT1271052B ITMI942211A ITMI942211A IT1271052B IT 1271052 B IT1271052 B IT 1271052B IT MI942211 A ITMI942211 A IT MI942211A IT MI942211 A ITMI942211 A IT MI942211A IT 1271052 B IT1271052 B IT 1271052B
Authority
IT
Italy
Prior art keywords
internal
teeth
pinion
circle
ring gear
Prior art date
Application number
ITMI942211A
Other languages
Italian (it)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6502830&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1271052(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of ITMI942211A0 publication Critical patent/ITMI942211A0/en
Publication of ITMI942211A1 publication Critical patent/ITMI942211A1/en
Application granted granted Critical
Publication of IT1271052B publication Critical patent/IT1271052B/en

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
    • F04C2/102—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
    • 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
    • F04C2/084—Toothed wheels

Abstract

Pompa ad ingranaggi interni avente le seguenti caratteristiche: una corona dentata con dentatura interna, i cui fianchi di azionamento vengono delimitati radialmente verso l'interno da un cerchio di troncatura interno; un pignone con dentatura esterna, i cui fianchi di azionamento vengono delimitati radialmente verso l'esterno da un cerchio di troncatura esterno; il pignone è supportato eccentricamente rispetto alla corona dentata interna, i fianchi di azionamento fra i punti di intersezione del cerchio di troncatura esterno e del cerchio di troncatura interno si impegnano; la corona dentata interna o il pignone è azionata/o; il numero di denti del pignone è inferiore al numero di denti della corona dentata interna; la forma dei denti delle dentature si scosta dalla forma dei denti ideali, nella quale pompa i denti del pignone e/oppure della corona dentata interna sono prolungati oltreInternal gear pump with the following characteristics: a ring gear with internal toothing, the drive sides of which are delimited radially inwards by an internal parting circle; a pinion with external teeth, whose drive sides are delimited radially outwards by an external parting circle; the pinion is supported eccentrically with respect to the internal ring gear, the drive sides between the intersection points of the external cutting circle and the internal cutting circle engage; the internal crown gear or pinion is driven; the number of teeth of the pinion is less than the number of teeth of the internal ring gear; the shape of the teeth of the teeth deviates from the shape of the ideal teeth, in which the teeth of the pinion and / or of the internal toothed crown are prolonged beyond

ITMI942211A 1993-11-18 1994-10-28 INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS IT1271052B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4339280 1993-11-18

Publications (3)

Publication Number Publication Date
ITMI942211A0 ITMI942211A0 (en) 1994-10-28
ITMI942211A1 ITMI942211A1 (en) 1996-04-28
IT1271052B true IT1271052B (en) 1997-05-26

Family

ID=6502830

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI942211A IT1271052B (en) 1993-11-18 1994-10-28 INTERNAL GEAR PUMP WITH VOLUMETRIC PROJECTIONS

Country Status (4)

Country Link
DE (1) DE4440782C5 (en)
FR (1) FR2712638A1 (en)
GB (1) GB2284638B (en)
IT (1) IT1271052B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347843B1 (en) * 1998-04-22 2002-02-19 Denso Corporation Pump equipment and method for assembling same
DE112004000064D2 (en) * 2003-05-23 2005-07-28 Luk Automobiltech Gmbh & Co Kg gear pump
DE102016121240A1 (en) 2016-11-07 2018-05-09 Nidec Gpm Gmbh Electric gerotor pump and method of making same
DE102018204086B4 (en) * 2018-03-16 2023-10-12 Eckerle Technologies GmbH Gear fluid machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130006A (en) * 1976-04-23 1977-11-01 Hitachi Ltd Gear pump
DE3444859A1 (en) * 1983-12-14 1985-06-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Rotary cellular pump for hydraulic systems
DE3448253C2 (en) * 1983-12-14 1991-05-16 Barmag Ag, 5630 Remscheid, De
DE3417832A1 (en) * 1984-05-14 1985-11-14 Rudolf Prof. Dr.-Ing. Röper Simple-symmetric toothing for internal and external gear pumps
EP0173778B1 (en) * 1984-09-05 1990-03-07 Hobourn Engineering Limited Improvements relating to pumps
DE3766177D1 (en) * 1986-07-19 1990-12-20 Barmag Barmer Maschf INTERNAL GEAR PUMP.
DE3737961A1 (en) * 1987-11-07 1989-05-18 Barmag Barmer Maschf Internal-gear pump
DE59100553D1 (en) * 1990-08-20 1993-12-09 Barmag Luk Automobiltech Internal gear pump for hydraulic fluid.
ATE116719T1 (en) * 1990-09-01 1995-01-15 Barmag Luk Automobiltech INTERNAL GEAR PUMP FOR HYDRAULIC FLUID.
EP0579981B1 (en) * 1992-06-29 1996-10-23 LuK Automobiltechnik GmbH & Co. KG Internal gear pump for hydraulic fluids
DE4338876C2 (en) * 1993-11-13 2001-10-18 Mannesmann Rexroth Ag Hydraulic gear machine (hydraulic pump or hydraulic motor)

Also Published As

Publication number Publication date
FR2712638A1 (en) 1995-05-24
ITMI942211A1 (en) 1996-04-28
GB2284638A (en) 1995-06-14
DE4440782A1 (en) 1995-07-20
DE4440782C2 (en) 2002-12-05
GB2284638B (en) 1998-05-27
DE4440782C5 (en) 2006-05-24
ITMI942211A0 (en) 1994-10-28
GB9423129D0 (en) 1995-01-04

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971030