EP0725901B1 - Innenzahnradmaschine - Google Patents
Innenzahnradmaschine Download PDFInfo
- Publication number
- EP0725901B1 EP0725901B1 EP94930923A EP94930923A EP0725901B1 EP 0725901 B1 EP0725901 B1 EP 0725901B1 EP 94930923 A EP94930923 A EP 94930923A EP 94930923 A EP94930923 A EP 94930923A EP 0725901 B1 EP0725901 B1 EP 0725901B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filler
- section
- spring element
- internally
- spring
- 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.)
- Expired - Lifetime
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Classifications
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- 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
Definitions
- the invention relates to an internal gear machine, in particular internal gear pump, according to the preamble of Claim 1.
- Such an internal gear machine with one along one Parting surface is divided into two filler pieces known for example from DE 29 54 546 C2. There is the filler half-crescent.
- the of the Parting surface of the filler are outgoing recesses in this known internal gear machine designed that the wedge surfaces of the two recesses in the same direction, i.e. in the direction from the pressure side to Suction side of the internal gear machine are oriented.
- the at this known internal gear machine for use spring elements are arched as simple or formed as corrugated leaf springs, they show at most a longitudinal dimension corresponding to the thickness of the filler on.
- a similar internal gear machine i.e. a Internal gear machine with a semi-crescent shape Filler, which is approximately in the circumferential direction extending separating surface divided into two filler parts is also known from DE 29 42 417 C2. Also at this known internal gear machine go from the Separating surface from opposite cutouts, in which the inclined surfaces forming the wedge surfaces in the same direction, i.e. from the pressure chamber to the suction chamber Internal gear machine are oriented.
- Regarding the Training and assembly of the spring elements apply to this known internal gear machine the above for DE 2954 546 C2 made accordingly, i.e. here too there is only a relatively hard suspension behavior as well the lack of a considerable amount of time during assembly of the spring elements in the corresponding sealing roller reduced space for the associated spring element. Such a relatively hard suspension behavior has an effect also on the service life and the running properties of the Internal gear machine accordingly.
- DE 37 23 557 A1 also discloses one Internal gear machine with a semi-crescent shape Filler, which is approximately in the circumferential direction extending separating surface divided into two filler parts is.
- this known internal gear machine that is semi-crescent shaped filler by at least one in one Housing bore rotatably mounted filler pin or Bearing journal and one movable in a groove Bearing body rotatably and displaceably supported on the housing, said bearing journal at a distance from arranged on the suction chamber end of the filler is, the bearing body protrudes from the journal and in a groove in one of the side or base surfaces of the Filler engages.
- An internal gear machine with a semi-crescent shape Filler which is approximately in the circumferential direction extending separating surface divided into two filler parts is also known from DE 35 44 857 Al.
- the Filler parts are supported with their suction side End faces on a support surface of the space between internally toothed ring gear and externally toothed scratching axially penetrating support element from such that the Filler pieces in the radial direction on the support surface slidable and parallel to the pinion axis extending pivot axis are pivotable.
- At this Training of the internal gear machine should be the support element be firmly connected to a housing wall and also the end faces of the filler parts should be concave Curvature with a parallel to the swivel axis Have axis of curvature.
- An internal gear machine with an internal gear Ring gear that has largely radial breakthroughs the outer circumference of the ring gear with its inside in The area of the tooth gaps and the tooth heads connecting is out DE 38 05 186 Al known. There they are in the Breakthroughs leading to gaps in each case so far into the Tooth gap on one side delimiting non-bearing Tooth flank put in that they are also a connection between their tooth base and the tooth head.
- This known internal gear machine is like that from the above cited publications known gear machines formed a semi-crescent shaped filler. All these Internal gear machines with semi-crescent shaped filler or along an approximately extending circumferentially Parting surface divided into filler parts are only drivable in one direction.
- DE-OS 25 33 646 describes a Internal gear machine, in which the filler can be formed crescent-shaped to a reversible machine, especially a pump.
- the invention has for its object a Internal gear machine of the type mentioned create, in which the spring elements comparatively are elastic and have a relatively low hardness, wherein also the assembly of the spring elements simple and time-saving is possible.
- the corresponding spring element at least one of the two housing parts of the housing with one Fixing section is fixed, it is simple and time-saving possible, the corresponding spring element on Secure the housing and, for example, first then the associated sealing roller in the through the Wedge surfaces or the receiving space delimiting the cutouts to arrange.
- the internal gear machine according to the invention is So comparatively easy to assemble.
- a preferred embodiment of the invention Internal gear machine for which an independent Patent protection is applied for, solves the invention underlying task with the characteristics of characterizing part of claim 2.
- a symmetrical sickle-shaped filler Internal gear machine in which the sickle-shaped Filling piece along an approximately circumferential direction extending separating surface divided into two filler parts is, the filler parts formed with wedge surfaces are, the wedge tips or edges facing each other are pressure compensation and reversibility with the advantages of simple and time-saving installation not only of the sealing rollers but in particular also that associated with the sealing rollers Spring elements.
- a comparatively elastic and soft Suspension behavior can be achieved according to the invention if that corresponding spring element on the at least one Housing part is fixed such that the spring section of the corresponding spring element has a spring length, to the thickness of the filler or to the axial length the associated sealing roller is adapted.
- the feather length can also in the internal gear machine according to the invention be greater than the thickness of the divided filler or axial length of the associated sealing roller. This is compared to those previously used arched or corrugated leaf springs a comparatively elastic and soft suspension behavior realizable, so that the internal gear machine according to the invention in particular as an internal gear pump for low and medium pressures is excellent.
- a comparatively large spring length of the spring section of the corresponding spring element and thus a relative elastic and soft suspension behavior of said Spring element can be realized if the invention corresponding spring element with its fastening section on a fixing section of one of the two housing parts is fixed in place, the fastening section or the associated fixing section axially against the associated Sealing roller is set back and to the Fixing section in the direction of the sealing roller Shoots movement space for the spring section.
- the corresponding spring element with its fastening section on a fixing section of one of the two housing parts is fixed in place, the fastening section or the associated fixing section to the associated Sealing roller immediately adjacent, and that the Spring section with its from the fastening section distal end section protrudes into a movement space, which is formed on the other of the two housing parts.
- Both in the first and in the latter case each have a spring element with a free spring length of his Realizable spring section, the at least the thickness of the Filler or the adapted length of the associated Sealing roller corresponds or is even slightly larger than this.
- This is a spring element with high elasticity and comparatively soft suspension behavior realizable, so that the internal gear machine according to the invention for example as an internal gear pump for low and medium pressures is well suited, as already mentioned has been.
- Another advantage of the invention Internal gear machine is that according to the invention Spring element, consisting of spring section and attached to it subsequent fastening section, compared to the known spring elements in the form of arched or corrugated small leaf springs is comparatively large, so that it is easier to handle than a known one small leaf spring.
- the base part with a movement space for the corresponding one Spring element forming through hole is formed and the corresponding spring element with his Fastening section between the base and the Cover part is fixed.
- said base part for example, as a sintered part directly and immediately with the through holes for the in at least approximately opposite directions to become effective spring elements.
- a simple and reliable fixation of the corresponding Spring element is the in an internal gear machine the last-mentioned type can be implemented according to the invention, that the base part facing the cover part Outer surface with a the fixing section for the corresponding groove element forming groove is provided, that adjoins the associated through hole, and that the Fastening section of the corresponding spring element with whose spring section in the unloaded original state from the angle deviating from 90 °.
- the Spring section can from the mounting section under a obtuse or acute angles deviating from 90 ° stand away. This is a corresponding one mechanical bias of the spring element and thus a Setting the spring force with which the spring element or the spring section of the spring element against the associated sealing roller presses, adjustable as desired.
- the recesses in one Longitudinal center of the corresponding axis of symmetry sickle-shaped base of the two filler parts are provided and form a common groove and if the face of the at least one filler pen piece protruding elevation as a rib adapted to the groove is trained.
- the groove expediently points here a trapezoidal cross-section that is open Side extended; accordingly the rib is with a trapezoidal cross section formed from Filler pen tapered away accordingly. This is it Insert the filler parts in between internally toothed ring gear and the externally toothed pinion given interior of the machine easily and time-saving possible.
- the Internal gear machine at least one of the Housing parts on the inside in the area of the Toothed ring of the internally toothed ring gear and / or in Area of the toothed ring of the externally toothed pinion with Pre-fill recesses is formed.
- the internal gear machine according to the invention has i.a. the following advantages:
- the gap losses are low, which results in an increase in efficiency;
- the Temperature dependence is negligible, so that the machine can be entered even at high temperatures can;
- the assembly of all details i.e. the assembly the machine according to the invention is simple and time-saving possible;
- the noise level is low; through the two-part design of the filler are relatively many Teeth of the pinion and the ring gear on the respective associated Filler part.
- Fig. 1 shows an open design of the Internal gear machine 10, which is in particular a reversible internal gear pump can act.
- the Internal gear machine 10 has two housing parts, of which the one housing part 12, which forms a base part, is shown, while the second housing part, the one the base part or the first housing part 12 is sealed forms closing lid part, in this Drawing figure is not shown.
- the first Housing part 12 is formed with a recess 14 which by a circular inner surface 16 and a circular cylindrical outer surface 18 is limited.
- an annular ring gear 20 rotatable provided that is provided with an internal toothing 22.
- With the internally toothed ring gear 20 is a pinion 24 meshing into engagement, which is one of the internal teeth of the Ring gear 20 has corresponding toothing 26.
- a Sickle-shaped filler 28 is provided, one of the pinion 24 and the ring gear 20 has a corresponding thickness.
- the Filler piece 28 is along approximately in the circumferential direction extending separating surface 30 in two filler parts 32 and 34 divided.
- the filler 28 or the two Filler piece parts 32 and 34 are to a center line 36 symmetrical. This center line 36 is through that Center 38 of the driven pinion 24 and through that Center 40 of a filler pin 42 set.
- the Filler pin 42 is rotatably supported in the housing part 12, its flat with the inner surface 16 of the room 14 final end face 44 has a rib 46 trained elevation 48 provided in form thereon adapted recesses 50 is form-fitting, which in the base 52 facing the filler pin 42 two filler parts 32 and 34 are formed.
- a limited radial mobility of the Filler pieces 32, 34 in relation to each other and in relation on the internally toothed ring gear 20 or the externally toothed Pinion 24.
- the two filler parts 32 and 34 are on their end portions 54 facing away from one another Partition 30 provided outgoing recesses 56 and 58, each of the recesses 56, 58 each having a Inclined surface 60 and 62 is formed.
- Each of the two sealing rollers 64 is against the by means of an associated spring element 66 corresponding oblique or wedge surfaces 60, 62 are forced. Formations of such spring elements 66 and their arrangement on the housing part 12 or on the one not shown in FIG. 1 second housing part or cover are in FIGS. 2 to 15 and are discussed in more detail below in Connection described with these drawing figures.
- a stabilization of the radial forces and pre-filling recesses 74 serve to reduce noise and 76, for example in the inner surface 16 of the housing part 12 and / or in the corresponding inner surface of the second Housing part in the region of the toothed ring 70 of Internal teeth 22 of the ring-shaped ring gear 20 or in Area of the toothed ring 22 of the external toothing 26 of the Pinion 24 are provided.
- the reference number 78 in FIG. 1 is an inlet or outlet designated, according to the respective direction of rotation the pinion 24 and the ring gear 20 in a suction chamber or open out from the opposite pressure chamber.
- FIG. 2 shows a base part 82 in a view from above, that together with a cover part 84 (see, for example, FIG. 4) forms a second housing part 80.
- the base part 82 is with two Through holes 86 formed for each associated spring element 88 (see FIGS. 4 and 5 or for the spring section 90 of the corresponding spring element 88 form a movement space in which the corresponding spring section 90 can move resiliently.
- the spring portion 90 is an attachment portion 92 integrally connected with which the corresponding Spring element 88 is fixed to the associated housing part 80.
- the base part 82 is expediently on its main surface 94 facing the cover part 84 a groove 98 forming a fixing section 96, to the associated through hole 86 immediately adjacent.
- Such training as shown in FIGS. 2 to 5 has the advantage that the corresponding spring element 88 from the cover side, i.e. from the side of the second housing part 80 can be easily assembled by following the arrangement of the externally toothed pinion, the internally toothed ring gear 20 and the filler 28, i.e.
- Base part 82 is mounted on the first housing part 12, then the two spring elements 88 in a simple manner with its spring section 90 by the associated Through hole 86 can be inserted until the Fastening section 829 of the corresponding spring element 88 positioned in the fixing section 96 of the base part 82 is.
- the cover part 84 is then placed on the base part 82 attached, whereby the corresponding spring element or two spring elements 88 with the associated Fastening section 92 fixed in the fixing section 96 are.
- each spring element 88 is shaped in the original state in such a way that the spring section 90 with the adjoining Fastening section 92 includes an angle that is smaller than 90 °, or it is the spring section 90 with one adjacent to the associated sealing roller 64 Curvature 100 is formed, as in FIGS. 4 and 5 can be seen.
- FIG. 6 and 7 illustrate a wide Possibility of mounting a spring element 88 (FIG. 6) or a second embodiment of the spring element 88 (FIG. 7), the same details as in Figs. 4 and 5 with the same reference numerals as there, so that it needless to mention all of these details in connection with 6 and 7 to describe again in detail.
- the essential difference in the design according to FIG. 6 and FIG. 7 in comparison with the embodiment corresponding to FIGS 4 and 5 is that the fastening section 92 of the spring element 88 with the spring section 90 in unloaded original state (see Fig. 7) one of 90 ° deviating obtuse angle so that the Spring section 90 of the spring element 88 in FIG. 6 clarified assembled condition of the sections drawn internal gear machine 10 with a matching Presses spring force against the associated sealing roller 64.
- Fig. 8 illustrates in a similar to Figs. 4 and 6 respectively Sectional sectional view of the arrangement of a further training of the spring element 88 in one Sectionally indicated internal gear machine 10, wherein - As can be seen from Fig. 9 - the spring element 88 a Fastening section 92 and one aligned with this Has spring section 90.
- the spring section 90 is also here with a bulge 100 formed on the associated sealing roller 64 abuts, or said Sealing roller 64 against the wedge surfaces forming Oblique surfaces 60 and 62 (see Fig. 1) constrains.
- Fig. 10 illustrates schematically and in sections Housing part 12, one on the inner surface 16 of the Housing part 12 resting filler part 32, one on the Filler piece 32 overlying second housing part 80, the for sealing the first housing part 12 is provided, as well as one between the two Housing parts 12 and 80 provided sealing roller 64, the by means of a spring element 88 against the inclined surface of the corresponding filler part or against that of corresponding inclined surfaces 60 and 62 (see FIG. 1) formed wedge surface is pressed.
- the spring element 88 has a sleeve-shaped fastening section 92 and one of the Fastening section 92 axially projecting spring section 90, which is designed, for example, in a wave-like manner.
- the spring element 88 can, for example, be made of a sheet metal material a wall thickness of approx. 0.5 mm consist of CuSn6Zn.
- Fig. 10 shows an embodiment in which the Spring element 88 with its spring section 90 on the Outer lateral surface 102 of the corresponding sealing roller 64 12 illustrates an embodiment in which which the corresponding spring element 88 with its Spring section 90 in an interior 106 of the associated Sealing roller 64 extended.
- the interior 106 can be formed with a contact section 108 against which the spring element 88 with its spring section 90 presses.
- a spring element 88 is drawn at which is the fastening portion 92 and the spring portion 90 more or less aligned.
- the fixing section 96 for fixing the Fastening section 92 of the spring element 88 against the Inner surface 16 of the housing part 12 to form a Movement space 104 set back by dimension a.
- the fixing section 96 for fixing the Fastening section 92 of the spring element 88 against the Inner surface 16 of the housing part 12 to form a Movement space 104 set back by dimension a.
- On the said inner surface 16 of the housing part 12 is two-piece filler 28.
- the reference numeral 80 is the second housing part also in this drawing figure referred to, which rests on the filler 28.
- Fig. 13 shows a further possibility of arranging the corresponding spring element 88.
- This is Spring element 88 with its fastening section 92 in fixed a fixing portion 96 of the housing part 12, wherein the fixing section 96 directly to the inner surface 16 of the Housing part 12 adjoins.
- At the training shown in Fig. 13 extends Spring element 88 through the interior 106 of the corresponding Sealing roller 64 through.
- With reference numeral 28 is also called the two-part filler here.
- Fig. 14 shows an embodiment in which the housing part 12 starting from the inner surface 16 with a movement space 104 and following the movement space 104 with a Fixing section 96 is formed, in which the Spring element 88 fixed with its fastening portion 92 is.
- the spring element 88 is similar to that in FIG. 12 and 13 drawn spring elements 88, i.e. on the fastening section 92 at least closes approximately in alignment with a spring section 90 which, for example. is arched and attached to the associated Sealing roller 64 abuts or presses against it.
- the sealing roller 64 is by means of the spring element 88 so relatively soft and elastic against the two-part Filler piece 28 pressed on which the second housing part 80 is arranged.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
- Fig. 1
- in einer Ansicht von oben bzw. von vorne eine Innenzahnradmaschine mit vom einen Gehäuseteil entfernten zweiten Gehäuseteil um das im besagten einen Gehäuseteil drehbar gelagerte innenverzahnte Hohlrad, das damit in Eingriff stehende außenverzahnte Ritzel sowie das im Raum zwischen Hohlrad und Ritzel vorgesehene zweigeteilte Füllstück und weitere Einzelheiten der Maschine zu verdeutlichen,
- Fig.2
- eine Draufsicht auf ein Basisteil eines Gehäuse- bzw. Deckelteiles,
- Fig. 3
- eine Seitenansicht des Basisteiles in Blickrichtung des Pfeiles III in Fig. 2,
- Fig. 4
- einen Schnitt entlang der Schnittlinie IV-IV durch einen Abschnitt der Maschine, d.h. durch das eine, ein Grundteil bildende Gehäuseteil, sowie durch das Basisteil und ein Abdeckteil, die gemeinsam das zweite Gehäuseteil bzw. einen Deckel bilden, zur Verdeutlichung einer Ausbildung und Anordnung des gegen eine zugehörige Dichtungswalze drückenden Federelements,
- Fig. 5
- das Federelement gemäß Fig. 4 in einer Vorder- und in einer Seitenansicht,
- Fig. 6
- eine der Fig. 4 ähnliche abschnittweise Schnittdarstellung zur Verdeutlichung einer anderen Ausbildung bzw. Anordnung eines Federelementes,
- Fig. 7
- das Federelement gemäß Fig. 6 im unbelasteten Orginalzustand in Blickrichtung von vorne und von der Seite,
- Fig. 8
- eine den Fig. 4 bzw. 6 ähnliche abschnittweise Schnittdarstellung zur Verdeutlichung einer dritten Ausbildung und Anordnung eines Federelementes, das gegen eine zugehörige Dichtungswalze drückt,
- Fig. 9
- eine Seitenansicht des Federelementes gem. Fig. 8,
- Fig. 10
- abschnittweise eine Darstellung eines gegen eine Dichtungswalze drückenden Federelementes ähnlich den in Fig. 8 und 9 gezeichneten Federelement,
- Fig. 11
- eine räumliche Darstellung des Federelementes gemäß Fig. 10,
- Fig. 12
- eine der Fig. 10 ähnliche Darstellung zur Verdeutlichung einer anderen Ausbildung des Federelementes sowie einer weiteren Ausbildung der Dichtungswalze, mit welcher das Federelement zusammenwirkt,
- Fig. 13,
- eine den Fig. 10 und 12 ähnliche Darstellung zur Verdeutlichung einer dritten Ausführungsform des mit einer Dichtungswalze zusammenwirkenden Federelementes,
- Fig. 14
- eine den Fig. 10, 12 und 13 ähnliche Darstellung einer weiteren Ausführungsform eines mit einer Dichtungswalze zusammenwirkenden Federelementes, und
- Fig. 15
- einen Schnitt entlang der Schnittlinie XV-XV in Fig. 14.
Claims (15)
- Innenzahnradmaschine, insbesondere Innenzahnradpumpe, mit einem zweiteiligen Gehäuse (12, 80), in dem ein innenverzahntes Hohlrad (20), ein damit in Eingriff stehendes außenverzahntes Ritzel (24) und im Raum (14) zwischen dem Hohlrad (20) und dem Ritzel (24) ein Füllstück (28) vorgesehen sind, wobei das Füllstück (28) längs einer sich etwa in Umfangsrichtung erstreckenden Trennfläche (30) in Füllstückteile (32, 34) geteilt ist und in den Füllstückteilen (30, 32) von der Trennfläche (30) ausgehende, einander gegenüberliegende Aussparungen (56, 58) vorgesehen sind, die jeweils derartig mit einer achsparallelen Schrägfläche (60, 62) ausgebildet sind, daß die beiden einander zugewandten Schrägflächen (60, 62) miteinander einen Keilwinkel einschließende Keilflächen bilden, an welchen eine zugehörige Dichtungswalze (64) anliegt, die mittels eines Federelementes (88) gegen die zugehörigen Keilflächen gedrückt wird, wodurch die Füllstückteile (32, 34) auseinander gedrückt werden,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) an mindestens einem der beiden Gehäuseteile (12, 80) mit einem Befestigungsabschnitt (92) fixiert ist, von dem ein mindestens annähernd achsparallel orientierter Federabschnitt (90) wegsteht. - Innenzahnradmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß das Füllstück (28) sichelförmig symmetrisch ausgebildet ist und längs einer sich etwa in Umfangsrichtung erstreckenden Trennfläche (30) in zwei symmetrische sichelförmige Füllstückteile (32, 34) geteilt ist, daß jedes Füllstückteil (32, 34) an seinen beiden voneinander entfernten Endabschnitten (54) von der Trennfläche (30) ausgehende, einander gegenüberliegende Aussparungen (56, 58) aufweist, die jeweils mit achsparallelen Schrägfläche (60, 62) derartig ausgebildet sind, daß die beiden einander zugewandten Schrägflächen (60, 62) miteinander einen Keilwinkel einschließende Keilflächen bilden, und daß in jeder der beiden voneinander entfernten Aussparungen eine an den zugehörigen Keilflächen anliegende Dichtungswalze (64) vorgesehen ist, die mittels eines zugehörigen Federelementes (88) gegen die Keilfächen gedrückt wird, wobei jedes der beiden Federelemente (88) an mindestens einem der beiden Gehäuseteile (12, 80) des Gehäuses mit einem Befestigungsabschnitt (92) fixiert ist, von dem ein mindestens annähernd achsparallel orientierter Federabschnitt (90) wegsteht, und wobei die beiden Federelemente (88) die zugehörigen Dichtungswalzen (64) in mindestens annähernd aufeinander zugewandte Richtungen drücken. - Innenzahnradmaschine nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) an dem mindestens einen Gehäuseteil (12, 80) derartig fixiert ist, daß der Federabschnitt (90) eine Federlänge aufweist, die an die Dicke des zweigeteilten Füllstückes (28) bzw. an die axiale Länge der zugehörigen Dichtungswalze (64) angepaßt ist. - Innenzahnradmaschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) mit seinem Federabschnitt (90) gegen die Außenmantelfläche (102) der zugehörigen Dichtungswalze (64) drückt. - Innenzahnradmaschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) sich mit seinem Federabschnitt (90) in einen Innenraum (106) der zugehörigen Dichtungswalze (64) erstreckt. - Innenzahnradmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) mit seinem Befestigungsabschnitt (92) an einem Fixierabschnitt (96) eines der beiden Gehäuseteile (12, 80) fixiert ist, wobei der Befestigungsabschnitt (92) bzw. der zugehörige Fixierabschnitt (96) axial gegen die zugehörige Dichtungswalze (64) zurückversetzt ist und sich an den Fixierabschnitt in Richtung zur Dichtungswalze (64) ein Bewegungsraum (104) für den Federabschnitt (90) anschließt. - Innenzahnradmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß das entsprechende Federelement (88) mit seinem Befestigungsabschnitt (92) an einem Fixierabschnitt (96) eines der beiden Gehäuseteilen (12, 80) fixiert ist, wobei der Befestigungsabschnitt (92) bzw. der zugehörige Fixierabschnitt (96) an die zugehörige Dichtungswalze (64) angrenzt und daß der Federabschnitt (90) mit seinem vom Befestigungsabschnitt (92) entfernten Endabschnitt (110) in einen Bewegungsraum (104) hineinsteht, der am anderen der beiden Gehäuseteile (80, 12) ausgebildet ist. - Innenzahnradmaschine nach einem der Ansprüch 1 bis 5,
dadurch gekennzeichnet,
daß der das entsprechende Federelement (88) haltende Gehäuseteil (80) innenseitig ein Basisteil (82) und außenseitig ein Abdeckteil (84) aufweist, wobei das Basisteil (82) mit einem einen Bewegungsraum (104) für das entsprechende Federelement (88) bildenden Durchgangsloch (86) ausgebildet ist und das entsprechende Federelement (88) mit seinem Befestigungsabschnitt (92) zwischen dem Basis- und dem Abdeckteil (82, 84) fixiert ist. - Innenzahnradmaschine nach Anspruch 8,
dadurch gekennzeichnet,
daß das Basisteil (82) an seiner dem Abdeckteil (84) zugewandten Außenfläche (94) mit einer den Fixierabschnitt (96) für das entsprechende Federelement (88) bildenden Rille (98) versehen ist, die an das zugehörige Durchgangsloch (86) angrenzt, und daß der Fixierabschnitt (96) des entsprechenden Federelementes (88) mit dessen Federabschnitt (90) im unbelasteten Orginalzustand einen vom 90 ° abweichenden Winkel einschließt. - Innenzahnradmaschine nach einem der Ansprüche 2 und 8 oder 9,
dadurch gekennzeichnet,
daß das Federelement (88) einteilig mit einem Befestigungsabschnitt (92) und mit zwei endseitigen Federabschnitten (90) ausgebildet ist, die im unbelasteten Orginalzustand jeweils mit dem gemeinsamen mittigen Befestigungsabschnitt (92) einen von 90° abweichenden Winkel einschließen. - Innenzahnradmaschine nach Anspruch 10,
dadurch gekennzeichnet,
daß der Befestigungsabschnitt (92) des Federelementes (88) an den Verlauf der Trennfläche (30) der beiden Füllstückteile (33, 34) mindestens annähernd angepaßt ist. - Innenzahnradmaschine nach Anspruch 2,
dadurch gekennzeichnet,
daß die beiden Füllstückteile (32, 34) an mindestens einer ihrer beiden voneinander abgewandten Grundflächen (52) jeweils eine Ausnehmung (50) aufweisen, und daß mindestens ein Füllstückstift (42) im entsprechenden Gehäuseteil (12, 80) drehbeweglich gelagert ist, der stirnseitig mit einer Erhebung (48) ausgebildet ist, die in die beiden Ausnehmungen (50) in der entsprechenden Grundfläche der beiden Füllstückteile (32, 34) formschlüssig und beweglich angeordnet ist. - Innenzahnradmaschine nach Anspruch 12,
dadurch gekennzeichnet,
daß die beiden Ausnehmungen (50) in der eine Symmetrieachse (36) bildenden Längsmitte der entsprechenden Grundfläche der beiden Füllstückteile (32,34) vorgesehen sind und eine gemeinsame Rille bilden, und daß die von dem mindestens einen Füllstückstift (42) stirnseitig wegstehende Erhebung (48) als an die Rille angepaßte Rippe (46) ausgebildet ist. - Innenzahnradmaschine nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß mindestens eines der Gehäuseteile (12, 80) an seiner Innenfläche (16) und/oder daß die beiden Füllstückteile (32, 34) an mindestens einer ihrer beiden voneinander abgewandten Grundflächen (52) mit wenigstens einem Druckausgleichskanal (68) ausgebildet sind, der sich zwischen dem Zahnkreisring (70) des innenverzahnten Hohlrades (20) und dem Zahnkreisring (72) des außenverzahnten Ritzels (24) erstreckt. - Innenzahnradmaschine nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß mindestens eines der Gehäuseteile (12, 80) an seiner Innenfläche (16) im Bereich des Zahnkreisringes (70) des innenverzahntes Hohlrades (20) und/oder im Bereich des Zahnkreisringes (72) des außen verzahnten Ritzels (24) mit Vorfüllausnehmungen (74, 76) ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4336966A DE4336966A1 (de) | 1993-10-29 | 1993-10-29 | Innenzahnradmaschine |
DE4336966 | 1993-10-29 | ||
PCT/DE1994/001249 WO1995012070A1 (de) | 1993-10-29 | 1994-10-21 | Innenzahnradmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0725901A1 EP0725901A1 (de) | 1996-08-14 |
EP0725901B1 true EP0725901B1 (de) | 1998-11-11 |
Family
ID=6501336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94930923A Expired - Lifetime EP0725901B1 (de) | 1993-10-29 | 1994-10-21 | Innenzahnradmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5690481A (de) |
EP (1) | EP0725901B1 (de) |
DE (2) | DE4336966A1 (de) |
WO (1) | WO1995012070A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706639C2 (de) * | 1997-02-20 | 1998-12-24 | Eckerle Ind Elektronik Gmbh | Innenzahnradmaschine, insbesondere Innenzahnradpumpe |
DE19930910C1 (de) | 1999-07-06 | 2001-01-18 | Voith Turbo Kg | Innenzahnradpumpe für Reversierbetrieb im geschlossenen hydraulischen Kreislauf |
DE19815421A1 (de) * | 1998-04-07 | 1999-10-14 | Eckerle Ind Elektronik Gmbh | Innenzahnradmaschine |
DE102005044576A1 (de) * | 2005-09-17 | 2007-03-22 | Voith Turbo Gmbh & Co. Kg | Innenzahnradmaschine |
DE102012208851A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Innenzahnradpumpe |
DE102012214356A1 (de) * | 2012-08-13 | 2014-02-13 | Robert Bosch Gmbh | Innenzahnradpumpe |
US11506200B1 (en) | 2020-02-27 | 2022-11-22 | Parker-Hannifin Corporation | Hydraulic gear pump with radial pressure compensator |
CN113236554B (zh) * | 2021-06-04 | 2022-06-21 | 中国人民解放军海军工程大学 | 一种可双向旋转的渐开线齿廓内啮合齿轮泵 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482713A (en) * | 1944-06-27 | 1949-09-20 | Bergen Engineering And Sales C | Rotary internal gear pump |
DE2313085C2 (de) * | 1973-03-16 | 1984-05-24 | Otto 7502 Malsch Eckerle | Axial und radial kompensierte Hochdruck-Zahnradpumpe |
DE2533646C2 (de) * | 1975-07-28 | 1986-04-17 | Otto Sion Wallis Eckerle | Hochdruck-Zahnradpumpe oder -motor |
DE2614048A1 (de) * | 1976-04-01 | 1977-10-06 | Friedrich Ing Grad Reichert | Zahnradpumpe mit innenverzahnung und umlaufendem gehaeuse |
DE2924751A1 (de) * | 1979-06-20 | 1981-01-22 | Otto Eckerle | Innenlaeuferzahnradpumpe |
DE2942417A1 (de) * | 1979-10-19 | 1981-05-14 | Otto Eckerle GmbH & Co KG, 7502 Malsch | Innenzahnradmaschine |
DE2954546C2 (de) * | 1979-10-19 | 1989-07-06 | Otto Eckerle Gmbh & Co Kg, 7502 Malsch, De | |
JPS5944511B2 (ja) * | 1979-12-17 | 1984-10-30 | 株式会社不二越 | 内接ギヤポンプ・モ−タ |
DE3544857C2 (de) * | 1985-12-18 | 1994-09-29 | Eckerle Rexroth Gmbh Co Kg | Innenzahnradmaschine |
DE3723557A1 (de) * | 1987-07-16 | 1989-01-26 | Eckerle Otto Gmbh & Co | Innenzahnradmaschine |
CH679879A5 (de) * | 1989-09-25 | 1992-04-30 | Bucher Maschf Gmbh |
-
1993
- 1993-10-29 DE DE4336966A patent/DE4336966A1/de not_active Withdrawn
-
1994
- 1994-10-21 DE DE59407290T patent/DE59407290D1/de not_active Expired - Fee Related
- 1994-10-21 EP EP94930923A patent/EP0725901B1/de not_active Expired - Lifetime
- 1994-10-21 WO PCT/DE1994/001249 patent/WO1995012070A1/de active IP Right Grant
- 1994-10-21 US US08/633,782 patent/US5690481A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0725901A1 (de) | 1996-08-14 |
US5690481A (en) | 1997-11-25 |
DE4336966A1 (de) | 1995-05-04 |
DE59407290D1 (de) | 1998-12-17 |
WO1995012070A1 (de) | 1995-05-04 |
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