WO1996005437A1 - Rotary motor with cover-mounted feed - Google Patents

Rotary motor with cover-mounted feed Download PDF

Info

Publication number
WO1996005437A1
WO1996005437A1 PCT/DE1995/000993 DE9500993W WO9605437A1 WO 1996005437 A1 WO1996005437 A1 WO 1996005437A1 DE 9500993 W DE9500993 W DE 9500993W WO 9605437 A1 WO9605437 A1 WO 9605437A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
cover
channel
connection
ring piece
Prior art date
Application number
PCT/DE1995/000993
Other languages
German (de)
French (fr)
Inventor
Helmut Bauers
Original Assignee
Hydraulik Nord 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 Hydraulik Nord Gmbh filed Critical Hydraulik Nord Gmbh
Publication of WO1996005437A1 publication Critical patent/WO1996005437A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-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
    • F04C2/103Rotary-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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/104Rotary-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 one member having simultaneously a rotational movement about its own axis and an orbital movement having an articulated driving shaft

Definitions

  • the invention relates to a gerotor motor according to the preamble of claim 1.
  • Gerotor motors of this type are always used where there is no space for conventional and radial oil flow and oil flow removal due to unfavorable installation conditions.
  • a gerotor motor of this type is known in which the pressure oil is fed in and out laterally through the cover
  • this gerotor motor consists of a housing, a control unit accommodated in the housing and a displacement unit flanged on the end face.
  • the displacement unit is composed of a ring piece with an internal toothing and a rotor gear with an external toothing that comes with the ring piece and has one tooth less.
  • the ring piece and the rotor gear are fastened to the housing with a cover and five screws.
  • connection is connected to a corresponding ring channel and the other connection is connected to another ring channel in the control unit.
  • connections are arranged for the inlet and outlet in the cover and within the pitch circle of the fastening screws and are hydraulically connected to one of the ring channels in the housing via oblique, axial and radial channels in the lid and in the housing and through the passage of at least one roller of the ring piece.
  • connection for the inlet and the outlet on a common pitch circle and in a circumferential position corresponding to the loose rollers of the ring piece.
  • the invention eliminates the disadvantages of the prior art in gerotor motors in the version with loose rollers in the ring piece of the displacement unit.
  • Fig. 3 is a view of the Verortician and
  • Fig. 4 shows a partial section of the gerotor motor
  • the gerotor motor is known to consist of a housing 1 with an internal output shaft 2, which on the one hand protrudes from the housing 1 and is of hollow construction, and on the other hand a displacer unit 3 flanged on.
  • the displacer unit 3 sets are composed of a ring piece 4 with seven inner teeth and a rotor gear 5 which meshes with the ring piece 4 and has six outer teeth.
  • the inner teeth of the ring piece 4 are formed by rollers 6, which are inserted loosely and have a central passage 7.
  • Ring piece 4 and rotor gear 5 are fastened to the housing 1 with seven screws 8 and a cover 9.
  • the rotor gear 5 of the displacement unit 3 and the output shaft 2 in the housing 1 are connected to one another in a rotationally fixed manner via a cardan shaft 10.
  • the rotor gear 5 and the output shaft 2 each have an internal toothing and the cardan shaft 10 has a spherical external toothing on both sides.
  • the housing 1 and the output shaft 2 form in the interior two annular channels 11 and 12, which on the one hand have several axial channels 13 in the discharge shaft 2 and several radial and axial channels 14 and 15 in the housing i either with the pressure chambers 16 or the discharge chambers 17 of the displacement unit 3 are connected.
  • the ring channels 11 and 12 each give a connection to a connection 18 DZW.
  • connection 19 the fifth via a directional control valve, not shown, to the tank and the pump.
  • these connections 18 and 19 are located in the cover 9 on a pitch circle, de “compared to the pitch circle of the screws 8 by one certain amount is smaller.
  • the connection of these connections 18 and 19 in the cover 9 to the corresponding ring channel 11 or 12 in the housing 1, as shown in FIGS. 1 and 4, through an inclined channel 20, 20 'in the cover 9, the passage 7 one Roll 6 of the displacer 3 and an axial channel 21, 21 'and a radial channel 22, 22' in the housing 1 realized.
  • a gerotor motor In the neutral position of a directional control valve, not shown, the supply line from the pump to the connection 19 of the gerotor motor is interrupted and the connection of the connection 18 to the tank is established. The gerotor motor is thus at a standstill. After switching the directional valve into a desired position determining the direction of rotation of the gerotor motor, pressure oil reaches, for example, the connection 18 and from there via the inclined channel 20 in the cover 9, via the passage 7 in the roller 6 and via the axial channel 21 unc the radial channel 22 in the housing 1 to the annular channel 12.
  • the pressure oil is distributed to a plurality of axial channels (not shown) in the output shaft 2 and fed to the pressure chambers 16 of the displacement unit via radial and axial channels in the housing 1.
  • the rotor gear 5 sets in a revolving rotary motion and drives the output shaft 2 via the cardan shaft 10.
  • the oil located in the drain chamber 17 is displaced and passes over the axial channels 15 and the radial channels 14 in the housing 1 and the axial channels 13 in the output shaft 2 to the belt channel 11 radial channel 22 'and the axial channel 21' in the housing 1, the passage 7 of the roller 6 and the oblique channel 20 'forwarded to the connection 19.
  • From here there is again a connection to the directional control valve and thus to the tank. Switching the directional valve changes the direction of rotation of the gerotor motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Rotary Pumps (AREA)

Abstract

In prior art rotary motors with feed and discharge connections in the plunger cover, the plunger is fixed to the housing with two bolts less. For this reason, such rotary motors are not very resistant to compressive loads and thus low in performance. The rotary motor proposed has feed and discharge connections in the cover but the plunger is attached with as many bolts as there are teeth on the plunger ring. To this end, the feed and discharge connections (18, 19) are located inside the pitch circle of the bolts (8) and each connected via an inclined channel (20, 20') in the cover (9), via a bore (7) through a roller (6) and via a longitudinal channel (21, 21') and a radial channel (22, 22') in the housing (1) to one of two annular channels (11 or 12) in the housing (1). Such rotary motors are suitable for use mainly in mobile hydraulic systems in which lack of installation space does not permit a radial arrangement of the feed and discharge connections.

Description

Beschreibungdescription
Gerotormotor mit DeckelZuführungGerotor motor with cover feed
Die Erfindung betrifft einen Gerotormotor nach dem Ober¬ begriff des AnsDruchs 1.The invention relates to a gerotor motor according to the preamble of claim 1.
Derartige Gerotormotore werden immer dort eingesetzt, wo auf Grund ungunstiger Einbauverhaltnisse kein Raum für die herkömmliche und radiale όlstromzu- und Olstromab- fuhrung vorhanden ist.Gerotor motors of this type are always used where there is no space for conventional and radial oil flow and oil flow removal due to unfavorable installation conditions.
Es ist ein Gerotormotor dieser Gattung bekannt, bei dem das Drucköl seitlich durch den Deckel zu- und abgeführtA gerotor motor of this type is known in which the pressure oil is fed in and out laterally through the cover
Dieser Gerotormotor besteht in bekannter Art aus einem Gehäuse, einer im Gehäuse untergebrachten Steuereinheit und einer stirnseitig angeflanschten Verdrangereinheit. Die Verdrangeremheit setzt sich aus einem Ringstuck mit einer Innenverzahnung und einem, mit dem Ringstuck kam¬ menden, einen Zahn weniger aufweisenden Lauferzahnrad mit Außenverzahnung zusammen. Das Ringstuck und das Lau¬ ferzahnrad sind mit einem Deckel und fünf Schrauben am Gehäuse befestigt.In a known manner, this gerotor motor consists of a housing, a control unit accommodated in the housing and a displacement unit flanged on the end face. The displacement unit is composed of a ring piece with an internal toothing and a rotor gear with an external toothing that comes with the ring piece and has one tooth less. The ring piece and the rotor gear are fastened to the housing with a cover and five screws.
Im Deckel befinden sich weiterhin zwei, annähernd gegen¬ überliegende Anschlüsse für den Zulauf und für den Ab¬ lauf. Die fünf Schrauben und die zwei Anschlüsse sind mit gleicher Teilung auf einem gemeinsamen Teilkreis angeordnet, über auf gleicher Achse liegenden axialen Bohrungen im Deckel, im Ringstuck und im Gehäuse ist ein Anschluß mit einem entsprechenden Ringkanal und der an¬ dere Anschluß mit einem anderen Ringkanal in der Steue¬ reinheit verbunden.In the cover there are also two, approximately opposite connections for the inlet and for the outlet. The five screws and the two connectors are Arranged with the same pitch on a common pitch circle, via axial bores in the cover, in the ring piece and in the housing lying on the same axis, a connection is connected to a corresponding ring channel and the other connection is connected to another ring channel in the control unit.
Bei diesem Gerotormotor wird praktiscn aer Raum zweier Scnrauben für die Anscnlusεe und für die Kanalfuhrungen des Zu- und Ablaufes verwendet.. Statt Dislang sieoen stehen jetzt nur noch fünf Schrauben zur Verfugung. Die¬ se Verringerung der Anzahl der Schrauben geht zwangsläu¬ fig zu Lasten der Druckbelastbarkeit und damit der Lei¬ stung des Gerotormotors. Als Ausgleich dazu naheliegende Möglichkeiten, die Zugfestigkeit der Schrauben durch ei¬ ne größere Dimensionierung oder durch eine Verbesserung der Mateπalgute zu erhohen, scheiden hier aus. Die grö¬ ßere Dimensionierung scheitert an den mangelnden Platz- verhaltmssen oder fuhrt zu einer Vergrößerung aer Ver¬ drangeremheit und die Erhonung der Mateπalgute der Scnrauben ist durch die vorgegebene Belastbarkeit des Gewindes im Gußkoroer des Gehäuses begrenzt.With this gerotor motor, practical space of two screws is used for the connections and for the channel guides of the inlet and outlet. Instead of Dislang sieoen there are now only five screws available. This reduction in the number of screws is inevitably at the expense of the compressive strength and thus the performance of the gerotor motor. To compensate for this, there are no obvious possibilities of increasing the tensile strength of the screws by means of a larger dimensioning or by improving the material. The larger dimensioning fails due to the lack of space or leads to an increase in displacement, and the increase in the material quality of the screws is limited by the specified load capacity of the thread in the casting body of the housing.
Es besteht die Aufgaoe, einen Gerotormotor mit im Decκel angeordneten Anschlüssen fur oen Zu- und Aσlauf zu ent¬ wickeln, dessen Verdrangereinheit mit einer Anzahl von Schrauben am Gehäuse befestigt ist, die der Anzanl oer Zanne des Ringstuckes entsoπcht.It is Aufgaoe, a gerotor motor arranged in Decκel terminals fu r oen inlet and Aσlauf wrap to ent whose Verdrangereinheit is secured with a number of screws on the housing, the entsoπcht oer the Anzanl Zanne of the ring Stuckes.
Diese Aufgabe wird dadurcn gelost, daß die Anschlüsse für den Zulauf und den Ablauf im Deckel und innerhalb des Teilkreises der Befestigungsschrauben angeordnet sind und über schräge, axiale und radiale Kanäle im Deckel und im Gehäuse und über den Durchgang mindestens einer Rolle des Ringstückes je mit einem der Ringkanäle im Gehäuse hydraulisch verbunden sind.This task is solved by the connections are arranged for the inlet and outlet in the cover and within the pitch circle of the fastening screws and are hydraulically connected to one of the ring channels in the housing via oblique, axial and radial channels in the lid and in the housing and through the passage of at least one roller of the ring piece.
Zweckdienlich ist es, die Anschlüsse für den Zulauf und den Ablauf auf einem gemeinsamen Teilkreis und in einer mit den losen Rollen des Ringεtückes übereinstimmenden Umfangstellung anzuordnen.It is expedient to arrange the connections for the inlet and the outlet on a common pitch circle and in a circumferential position corresponding to the loose rollers of the ring piece.
Die Erfindung beseitigt die genannten Nachteile des Standes der Technik bei Gerotormotore in der Ausführung mit losen Rollen im Ringstück der Verorängereinheit.The invention eliminates the disadvantages of the prior art in gerotor motors in the version with loose rollers in the ring piece of the displacement unit.
Die Erfindung soll nachstehend an einem Ausführungsbei¬ spiel näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.
Dazu zeigenShow this
Fig. 1 einen Schnitt des Gerotormotors,1 shows a section of the gerotor motor,
Fig. 2 eine Ansicht der Deckelseite,2 is a view of the cover side,
Fig. 3 eine Ansicht der Verorängereinheit undFig. 3 is a view of the Verorängereinheit and
Fig. 4 einen Teilschnitt des Gerotormotors mitFig. 4 shows a partial section of the gerotor motor
Darstellung einer Kanalführung von einemRepresentation of a channel of one
Deckelanschluß zu einem Ringkanal derLid connection to a ring channel
Steuereinheit. Wie insbesondere die Fig. 1 zeigt, besteht der Gerotor¬ motor bekanntermaßen aus einem Gehäuse 1 mit einer inne¬ ren, einerseits aus dem Gehäuse 1 herausragenden und hohl ausgebildeten Abtriebswelle 2 und einer anderer¬ seits angeflanschten Verdrängereinheit 3. Die Verdrän¬ gereinheit 3 setzt sich aus einem Ringstück 4 mit sieben Innenzähnen und einem, mit dem Ringstück 4 kämmenden, sechs Außenzähne aufweisenden Läuferzahnrad 5 zusammen. Die Innenzähne des Ringstückes 4 werden durch Rollen 6 gebildet, die lose eingesetzt sind und einen mittigen Durchgang 7 besitzen. Ringstück 4 und Läuferzahnrad 5 sind mit sieben Schrauben 8 und einem Deckel 9 am Gehäu¬ se 1 befestigt. Das Läuferzahnrad 5 der Verdrängerein¬ heit 3 und die Abtriebswelle 2 im Gehäuse 1 sind über eine Kardanwelle 10 drehfest miteinander verpunden. Dazu besitzen das Läuferzahnrad 5 und die Abtriebswelle 2 je¬ weils eine Innenverzahnung und die Kardanwelle 10 beid- seitig je eine ballige Außenverzahnung. Das Gehäuse 1 und die Abtriebswelle 2 bilden im Inneren zwei Ringkana- le 11 und 12, die einerseits über mehrere axiale Kanäle 13 in der AbtπeDswel le 2 und mehreren radialen und axialen Kanälen 14 und 15 im Gehäuse i entweder mit den Druckkammern 16 ooer den Ablaufkammern 17 der Verdran- gereinneit 3 verpunden sind. Andererseits naben die Rιngκanäle 11 und 12 je nacn Drenπchtung eine Verbin¬ dung zu einem Anschluß 18 DZW. einen Anschluß 19, die über ein nicht dargestelltes Wegeventil zum Tank und zur Pumpe fünren. Wie die Fig. 2 zeigt, befinden sich diese Anschlüsse 18 unc 19 im Deckel 9 auf einem Teilkreis, de" gegenüber dem Teilkreis der Schraupen 8 um einen bestimmten Betrag kleiner ist. Die Verbindung von diesen Anschlüssen 18 und 19 im Deckel 9 zu dem entsprechenden Ringkanal 11 oder 12 im Gehäuse 1 wird, wie die Fig. 1 und 4 zeigen, durch je einen Schrägkanal 20, 20' im Dek- kel 9, den Durchgang 7 einer Rolle 6 der Verdrängerein- neit 3 und einem axialen Kanal 21, 21' und einem radia¬ len Kanal 22, 22' im Gehäuse 1 realisiert.Control unit. As is shown in particular in FIG. 1, the gerotor motor is known to consist of a housing 1 with an internal output shaft 2, which on the one hand protrudes from the housing 1 and is of hollow construction, and on the other hand a displacer unit 3 flanged on. The displacer unit 3 sets are composed of a ring piece 4 with seven inner teeth and a rotor gear 5 which meshes with the ring piece 4 and has six outer teeth. The inner teeth of the ring piece 4 are formed by rollers 6, which are inserted loosely and have a central passage 7. Ring piece 4 and rotor gear 5 are fastened to the housing 1 with seven screws 8 and a cover 9. The rotor gear 5 of the displacement unit 3 and the output shaft 2 in the housing 1 are connected to one another in a rotationally fixed manner via a cardan shaft 10. For this purpose, the rotor gear 5 and the output shaft 2 each have an internal toothing and the cardan shaft 10 has a spherical external toothing on both sides. The housing 1 and the output shaft 2 form in the interior two annular channels 11 and 12, which on the one hand have several axial channels 13 in the discharge shaft 2 and several radial and axial channels 14 and 15 in the housing i either with the pressure chambers 16 or the discharge chambers 17 of the displacement unit 3 are connected. On the other hand, the ring channels 11 and 12 each give a connection to a connection 18 DZW. a connection 19, the fifth via a directional control valve, not shown, to the tank and the pump. As shown in FIG. 2, these connections 18 and 19 are located in the cover 9 on a pitch circle, de "compared to the pitch circle of the screws 8 by one certain amount is smaller. The connection of these connections 18 and 19 in the cover 9 to the corresponding ring channel 11 or 12 in the housing 1, as shown in FIGS. 1 and 4, through an inclined channel 20, 20 'in the cover 9, the passage 7 one Roll 6 of the displacer 3 and an axial channel 21, 21 'and a radial channel 22, 22' in the housing 1 realized.
Die Funktion eines Gerotormotorε ist oekannt. In der Neutralstellung eines nicht dargestellten Wege- ventiles ist die Zuleitung von der Pumpe zum Anschluß 19 des Gerotormotors unterbrochen und die Verbindung des Anschlusses 18 zum Tank hergestellt. Der Gerotormotor befindet sich so im Stillstand. Nach dem Schalten des Wegeventiles in eine gewünschte, die Drehrichtung des Gerotormotors bestimmende Position gelangt Drucköl zum Beispiel zum Anschluß 18 und von dort über den Schrägka¬ nal 20 im Deckel 9, über den Durchgang 7 in der Rolle 6 und über den axialen Kanal 21 unc den radialen Kanal 22 im Gehäuse 1 zum Ringkanal 12. Von dort wird das Drucköl auf mehrere, nicht dargestellte axiale Kanäle in der Ab¬ triebswelle 2 verteilt und über radiale und axiale Kanä¬ le im Gehäuse 1 den Druckkammern 16 der Verdrängerein¬ heit zugeführt. Das Läuferzahnrad 5 setzt sich in eine umlaufende Drehbewegung und treibt über die Kardanwelle 10 die Abtriebswelle 2 an. Gleicnzeitig wird das in den Ablaufkam ern 17 befindlicne Öl verdrängt und gelangt ÜPer die axialen Kanäle 15 und die radialer, Kanäle 14 im Gehäuse 1 und den axialen Kanälen 13 in der Abtriebswel¬ le 2 zum Rmgkanal 11. Von dort wird es über den radialen Kanal 22' und den axialen Kanal 21 ' im Gehäuse 1 , dem Durchgang 7 der Rolle 6 und dem Schrägkanal 20' zum Anschluß 19 weitergeleitet. Von hier besteht wieder¬ um Verbindung zum Wegeventil und damit zum Tank. Durch Umsachalten des Wegeventiles ändert sich die Dreh¬ richtung des Gerotormotors. The function of a gerotor motor is known. In the neutral position of a directional control valve, not shown, the supply line from the pump to the connection 19 of the gerotor motor is interrupted and the connection of the connection 18 to the tank is established. The gerotor motor is thus at a standstill. After switching the directional valve into a desired position determining the direction of rotation of the gerotor motor, pressure oil reaches, for example, the connection 18 and from there via the inclined channel 20 in the cover 9, via the passage 7 in the roller 6 and via the axial channel 21 unc the radial channel 22 in the housing 1 to the annular channel 12. From there, the pressure oil is distributed to a plurality of axial channels (not shown) in the output shaft 2 and fed to the pressure chambers 16 of the displacement unit via radial and axial channels in the housing 1. The rotor gear 5 sets in a revolving rotary motion and drives the output shaft 2 via the cardan shaft 10. At the same time, the oil located in the drain chamber 17 is displaced and passes over the axial channels 15 and the radial channels 14 in the housing 1 and the axial channels 13 in the output shaft 2 to the belt channel 11 radial channel 22 'and the axial channel 21' in the housing 1, the passage 7 of the roller 6 and the oblique channel 20 'forwarded to the connection 19. From here there is again a connection to the directional control valve and thus to the tank. Switching the directional valve changes the direction of rotation of the gerotor motor.

Claims

Patentansprüche claims
1. Gerotormotor mit Deckel Zuführung, bestehend aus einem Gehäuse, einer, im Gehäuse geführten und als Hohl¬ welle ausgebildeten Abtriebswelle und einer stirnseitig angeflanschten Verdrängereinheit, wobei die Verdränger¬ einheit1. Gerotor motor with cover feed, consisting of a housing, an output shaft guided in the housing and designed as a hollow shaft and a displacement unit flanged on the end face, the displacement unit
- aus einem äußeren Ringstück mit einer aus losen Rollen gebildeten Innenverzannung und aus einem inneren, ei¬ nen Zahn weniger aufweisenden Lauferzahnrao mit Außen¬ verzahnung besteht,consists of an outer ring piece with an internal toothing formed by loose rollers and an inner rotor tooth tooth having an external toothing and having fewer teeth,
- am Gehäuse mit einem Deckel und einer Anzahl von Schrauben befestigt ist, die der Anzahl der Rollen des Ringstückes entspricht und- Is attached to the housing with a cover and a number of screws, which corresponds to the number of rollers of the ring piece and
- hydraulisch über Kanäle im Gehäuse und in der Ab¬ triebswelle mit einem Anschluß für den Zulauf und ei¬ nem Anschluß für den Ablauf verbunden ist. d a d u r c h g e k e n n z e i c h n e t, daß- Hydraulically connected via channels in the housing and in the output shaft with a connection for the inlet and a connection for the outlet. d a d u r c h g e k e n n z e i c h n e t that
- der Anschluß (19) für den Zulauf und der Anschluß (18) für den Ablauf im Deckel (9) innerhalb des Teilkreises der Schrauben (8) angeordnet sind und- The connection (19) for the inlet and the connection (18) for the outlet in the cover (9) are arranged within the pitch circle of the screws (8) and
- jeweils mit einem der Ringkanäle (11 , 12) im Gehäuse (1 ) und der Abtriebswelle (2) verbunden sind- Are each connected to one of the ring channels (11, 12) in the housing (1) and the output shaft (2)
-- über mindestens einen, auf den Teilkreis der Rollen (6) gerichteten Schrägkanal (20. 20' ) im Decκel (9),- via at least one inclined channel (20, 20 ') directed towards the pitch circle of the rollers (6) in the decel (9),
-- über oen Durchgang (7) mindestens einer Rolle (6) des Ringstückeε (4),- At least one roller (6) of the ring piece (4) via the open passage (7),
- über mindestens einen axialen Kanal (21. 21 ' ) im Gehäuse ( 1 ) und- Via at least one axial channel (21, 21 ') in the housing (1) and
- über mindestens einen radialen Kanal (22, 22' ) im Genäuse ( 1 ) . - Via at least one radial channel (22, 22 ') in the genome (1).
2. Gerotormotor nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß beide Anschlüsse (18 und 19) auf einem gemeinsamen Teilkreis und/oder in ihrer Umfangstei lung auf die Umfangstellung der Rollen (6) des Ringstuckes (4) abgestimmt sind. 2. Gerotor motor according to claim 1, d a d u r c h g e k e n n z e i c h n e t that both connections (18 and 19) on a common pitch circle and / or in their circumferential development are matched to the circumferential position of the rollers (6) of the ring piece (4).
PCT/DE1995/000993 1994-08-10 1995-07-31 Rotary motor with cover-mounted feed WO1996005437A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944428270 DE4428270C1 (en) 1994-08-10 1994-08-10 Gerotor motor with cover feed
DEP4428270.2 1994-08-10

Publications (1)

Publication Number Publication Date
WO1996005437A1 true WO1996005437A1 (en) 1996-02-22

Family

ID=6525327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/000993 WO1996005437A1 (en) 1994-08-10 1995-07-31 Rotary motor with cover-mounted feed

Country Status (2)

Country Link
DE (1) DE4428270C1 (en)
WO (1) WO1996005437A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329271B3 (en) * 2003-06-30 2004-06-09 Bosch Rexroth Ag Manufacturing method for gerotor principle displacement unit for hydraulic steering device or hydraulic motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452014A1 (en) * 1979-03-20 1980-10-17 Danfoss As HYDRAULIC MACHINE WITH ROTARY PISTON WITH INTERNAL AXIS
US5100310A (en) * 1990-12-26 1992-03-31 Eaton Corporation Gerotor motor and improved valve drive therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452014A1 (en) * 1979-03-20 1980-10-17 Danfoss As HYDRAULIC MACHINE WITH ROTARY PISTON WITH INTERNAL AXIS
US5100310A (en) * 1990-12-26 1992-03-31 Eaton Corporation Gerotor motor and improved valve drive therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329271B3 (en) * 2003-06-30 2004-06-09 Bosch Rexroth Ag Manufacturing method for gerotor principle displacement unit for hydraulic steering device or hydraulic motor

Also Published As

Publication number Publication date
DE4428270C1 (en) 1996-03-21

Similar Documents

Publication Publication Date Title
DE4200305C2 (en) Adjustable vane pump in a compact design
DE3212363A1 (en) SELF-STARTING WING PISTON PUMP
DE3444859A1 (en) Rotary cellular pump for hydraulic systems
DE19651683A1 (en) Internal gear pump without filler
DE1528983B2 (en) CONTROL ROTARY VALVE DEVICE FOR A ROTARY PISTON MACHINE
DE2134994A1 (en) Two-stage external-axis rotary lobe machine for elastic working media
DE60011319T2 (en) Gerotormotor
DE2921311C2 (en)
DE4338875C2 (en) Reversible internal gear machine (pump or motor)
WO1996005437A1 (en) Rotary motor with cover-mounted feed
DE4421255C1 (en) Packing pieceless inner gearwheel pump
DE69732476T2 (en) ROTATING HYDRAULIC CONVERTER
DE102006025367A1 (en) Gear pump e.g. lubricating oil pump, for e.g. vehicle`s transmission, has suction and pressure areas in fluid connection with respective intermediate areas, where volume of areas is increased and/or decreased via rotation of wheel and pin
DE2421160A1 (en) PUMP
DE10056975C2 (en) Hydraulic machine, especially a pump
DE3433289C2 (en)
EP0475109B1 (en) Internal-gear pump for hydraulic fluid
WO2012084289A2 (en) Pump, compressor, or motor
DE102004021216A1 (en) High pressure gear type hydraulic pump has a central pinion meshing with an eccentric inner gear wheel supported on radial hydraulic pockets
EP0469135B1 (en) Gear pump or motor
DE102019127388A1 (en) Fluid supply of under vane chambers of a vane pump
DE3327772A1 (en) Positive displacement machine, in particular epicyclic gear with integrated hydraulic motor
WO2008125106A1 (en) Gerotor motor
EP1030963B1 (en) Induction pipe with insertable components
DE2230773A1 (en) DISPLACEMENT MACHINE

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BG PL US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase