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EP0124299B1 - Moteur hydraulique avec engrenage intérieur et frein de stationnement y utilisé - Google Patents

Moteur hydraulique avec engrenage intérieur et frein de stationnement y utilisé Download PDF

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Publication number
EP0124299B1
EP0124299B1 EP19840302283 EP84302283A EP0124299B1 EP 0124299 B1 EP0124299 B1 EP 0124299B1 EP 19840302283 EP19840302283 EP 19840302283 EP 84302283 A EP84302283 A EP 84302283A EP 0124299 B1 EP0124299 B1 EP 0124299B1
Authority
EP
European Patent Office
Prior art keywords
lock member
toothed
movement
internally
disposed
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
Application number
EP19840302283
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German (de)
English (en)
Other versions
EP0124299A2 (fr
EP0124299A3 (en
Inventor
Wayne Bernard Wenker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp
Original Assignee
Eaton Corp
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Filing date
Publication date
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Publication of EP0124299A2 publication Critical patent/EP0124299A2/fr
Publication of EP0124299A3 publication Critical patent/EP0124299A3/en
Application granted granted Critical
Publication of EP0124299B1 publication Critical patent/EP0124299B1/fr
Expired legal-status Critical Current

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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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0084—Brakes, braking assemblies

Definitions

  • the present invention relates to hydraulic motors of the gerotor type, and more particularly, to a parking brake for use in such motors.
  • the present invention may be utilized in hydraulic devices functioning as pumps, it is especially advantageous when used with a device operating as a motor, and will be described in connection therewith.
  • Hydraulic motors utilizing gerotor displacement mechanisms have been popular for many years for low speed high torque applications.
  • Such motors typically include a housing defining a fluid inlet and a fluid outlet and a gerotor gear set associated with the housing.
  • the gerotor gear set normally includes an internally-toothed ring fixed to the housing, and an externally-toothed star eccentrically disposed within the ring for orbital and rotational movement relative to the ring.
  • the teeth of the ring and star interengage to define expanding and contracting volume chambers during the relative movement.
  • a valve means within the housing operates in response to the relative movement to communicate fluid from the fluid inlet to the expanding fluid chambers, and from the contracting fluid chambers to the fluid outlet.
  • An output shaft extends from the housing and is rotatably supported thereby, and a shaft member has a first end connected to the star and a second end connected to the output shaft, to transmit the orbital and rotational movements of the star into a low speed high torque rotational movement of the output shaft.
  • Low speed high torque gerotor motors are frequently used to propel the drive wheels of vehicles, thus making it desirable for the motor to include some form of parking brake.
  • Another major use of such motors is to drive vehicle accessories, such as hoists and winches, and in this type of application it is desirable for the motor to have a "load holding" capability.
  • a disc pack Another approach to the need for a positive acting brake has been the use of a disc pack, with some of the discs being splined to the fixed housing, and alternating discs being splined to the rotating output shaft.
  • the discs are spring biased into engagement (braking) and hydraulic pressure is required to disengage the discs.
  • the disc pack is disposed within the housing of the gerotor motor and is operable to lock the motor output shaft to the motor housing. This approach requires almost total redesign of the motor housing and output shaft, thus making it economically impractical to offer a parking brake as a motor option.
  • a separate parking brake package engages the motor output shaft and has its own housing and separate output shaft which can be locked together by engagement of a disc pack. This separate parking brake has the advantage that it can be added as an option, because no-major modification of the motor is required, but the cost of the commercially available parking brake may be as much or more than the gerotor motor itself.
  • the above and other objects of the present invention are accomplished by the provision of an improved rotary fluid pressure device of the type described.
  • the device is characterized by a lock member operably associated with the internally-toothed member and disposed at least partially within one of the volume chambers.
  • the device includes actuation means operably associated with the lock member and operable to move the lock member between first and second positions. In the first position the lock member is disposed to permit normal orbital and rotational movement of the tooth members. In the second position, the lock member extends a sufficient distance into the volume chamber to engage one of the external teeth of the externally-toothed member as the volume chamber approaches a minimum chamber volume, to prevent further orbital movement of the member having orbital movement, thereby preventing rotation of the member having rotational movement.
  • FIG. 1 illustrates a low speed high torque gerotor motor of the type to which the present invention may be applied and which is illustrated and described in greater detail in U.S. Pat. Nos. 3,572,983 and 4,343,600, both of which are assigned to the assignee of the present invention, and are incorporated herein by reference.
  • the hydraulic motor shown in FIG. 1 comprises a plurality of sections secured together, such as by a plurality of bolts 11 (shown in only in FIG. 2).
  • the motor includes a shaft support casing 13, a wear plate 15, a gerotor displacement mechanism 17, a port plate 19, and a valve housing portion 21.
  • the gerotor displacement mechanism 17 is well known in the art, is shown and described in great detail in the incorporated patents, and will be described only briefly herein. More specifically, the displacement mechanism 17 is a Geroler@ mechanism comprising an internally-toothed ring 23 defining a plurality of generally semi-cylindrical openings, with a cylindrical member 25 disposed in each of the openings. Eccentrically disposed within the ring 23 is an externally-toothed star 27, typically having one less external tooth than the number of cylindrical members 25, thus permitting the star 27 to orbit and rotate relative to the ring 23. The relative orbital and rotational movement between the ring 23 and star 27 defines a plurality of expanding and contracting volume chambers 29.
  • the motor includes an output shaft 31 positioned within the shaft support casing 13 and rotatably supported therein by suitable bearing sets 33 and 35.
  • the shaft 31 includes a set of internal, straight splines 37, and in engagement therewith is a set of external, crowned splines 39 formed on one end of a main drive shaft 41.
  • Disposed at the opposite end of the main drive shaft 41 is another set of external, crowned splines 43, in engagement with a set of internal, straight splines 45, formed on the inside diameter of the star 27. Therefore, in the subject embodiment, because the ring 23 includes seven internal teeth 25, and the star 27 includes six external teeth, six orbits of the star 27 result in one complete rotation thereof, and one complete rotation of the main drive shaft 41 and the output shaft 31.
  • the drive shaft 41 always has its axis disposed at an angle relative to the main axis of the motor, i.e., the axis of the ring 23 and of the output shaft 31.
  • the primary function of the drive shaft 41 is to transmit torque from the gerotor star 27 to the output shaft 31. This is accomplished by translating the orbital and rotational movement of the star 27 into pure rotational motion of the output shaft 31.
  • a set of external splines 47 formed about one end of a valve drive shaft 49 which has, at its opposite end, another set of external splines 51 in engagement with a set of internal splines 53 formed about the inner periphery of a valve member 55.
  • the valve member 55 is rotatably disposed within the valve housing 2.
  • the valve drive shaft 49 is splined to both the star 27 and the valve member 55 in order to maintain proper valve timing therebetween, as is generally well known in the art.
  • the valve housing 21 includes a fluid port 57 in communication with an annular chamber 59 which surrounds the valve member 55.
  • the valve housing 21 also includes an outlet port 61 which is in fluid communication with a chamber 63 disposed between the valve housing 21 and valve member 55.
  • the valve member 55 defines a plurality of alternating valve passages 65 and 67, the passages 65 being in continuous fluid communication with the annular chamber 59, and the passages 67 being in continuous fluid communication with the chamber 63. In the subject embodiment, there are six of the passages 65, and six of the passages 67, corresponding to the six external teeth of the star 27.
  • the port plate 19 defines a plurality of fluid passages 69 (only one of which is shown in FIG.
  • the internally-toothed ring 23 includes a generally radially extending boss portion 71.
  • the boss portion 71 defines a radially-extending opening 73, which extends radially inward and opens into one of the volume chambers 29.
  • the opening 73 includes an inner, smooth bore portion 75, and an outer larger, threaded portion 77.
  • the bore portion 75 is intersected by an axially oriented, upside down U-shaped recess 79 (see FIG. 3).
  • the recess 79 preferably extends the entire axial length of the ring 23.
  • Disposed within the recess 79 is an elongated, generally cylindrical lock member 81.
  • the lock member 81 is retained within the recess 79 because the opening defined by the intersection of the recess 79 and volume chamber 29 has a circumferential width w which is less than the diameter of the lock member 81 (see FIG. 3).
  • the recess 79 is disposed circumferentially between a pair of adjacent internal teeth 25. Also, it should be noted in FIG. 3 that the configuration of the recess 79 permits some radial movement of the lock member 81, the purpose of which will be described subsequently.
  • the actuation mechanism 83 includes a generally cylindrical back-up member 85 disposed within the bore portion 75.
  • the back-up member 85 includes an 0-ring member disposed between it and the bore portion 75 to prevent fluid leakage past the member 85 when the adjacent volume chamber 29 contains pressurized fluid.
  • the back-up member 85 includes a surface 87 which defines a portion of a cylinder and engages the cylindrical lock member 81.
  • the actuation mechanism 83 further includes an actuator 89 disposed in the opening 73, adjacent the end of the back-up member 85.
  • the actuator 89 includes an externally-threaded portion 91 which is in threaded engagement with the threaded portion 77 of the opening 73.
  • the actuator 89 also includes a serrated portion 93 which is adapted to receive a handle member (not shown), whereby movement of the handle member results in rotation of the actuator 89, and movement either radially inwardly, or radially outwardly, depending upon the direction of movement of the handle.
  • the actuator 89 also includes another externally threaded portion 95, adapted to be in threaded engagement with a nut (not shown) for retention of the handle.
  • the lock mechanism When it is desired to permit the motor to operate in its normal fashion, i.e., with the star 27 engaging in its normal orbital and rotational movement with respect to the ring 23, the lock mechanism is placed in an unactuated condition. This is accomplished by moving the handle (not shown) to rotate the actuator 89 in a direction which results in movement upward in FIG. 2, radially away from the star 27. Such movement of the actuator 89 will permit orbital movement of the star 27 to force the lock member 81 and back-up member 85 radially upward toward the actuator 89. Normally, because of the 0-ring surrounding the back-up member 85, the member 85 will then remain in this upward position, as described above.
  • the lock member 81 will remain free to move radially within the recess 79, first moving radially upwardly whenever one of the teeth of the star 27 enters the volume chamber adjacent the lock member 81, causing that volume chamber to approach the minimum chamber volume (see FIG. 3). Then, as the star 27 continues to orbit, and the adjacent volume chamber increases in volume, the lock member 81 will be free to move radially inwardly, merely under the force of gravity, back to the position shown in FIG. 2.
  • the handle When it is desired to actuate the lock mechanism, in the manner of a vehicle parking brake, or as a load holding device on a winch, the handle is moved the opposite direction to rotate the actuator 89 in the opposite direction, causing it to move radially inwardly.
  • the inward movement of the actuator 89 by virtue of the threaded engagement between the portion 91 and threaded portion 77, forces the back-up member 85 radially inwardly.
  • the inward movement of the member 85 moves the lock member 81 to its radially inner most position, as shown in FIG. 2.
  • the lock member 81 is maintained fixed in the inward most position, and as the star 27 orbits, one of the external teeth of the star enters the adjacent volume chamber.
  • the external tooth of the star 27 instead of the external tooth of the star 27 causing the volume chamber to reach the minimum chamber volume, as during normal operation, the external tooth engages the lock member 81, and is prevented from moving further into the volume chamber. Thus, further orbital movement of the star 27 is prevented, as is further rotational movement of the star, relative to the ring.
  • the amount of radial movement of the lock member 81, actuation member 83 and back-up member 85, between the unactuated and actuated conditions is quite small. Typically, radial movement of less than .100 inches (2.54 mm) is sufficient, and in the subject embodiment, a movement of only .060 inches (1.53 mm) was required. It will be understood by those skilled in the art that the amount of radial movement required is in each case a function of the geometry of the particular gerotor displacement mechanism.
  • the device shown in FIG. 4 includes a housing 101 which receives the plurality of bolts 111. Disposed within the housing 101 is the internally-toothed ring 123 including the internal teeth (cylindrical members 125). Eccentrically disposed within the ring 123 is an externally-toothed star 127, and the relative orbital and rotational motion between the ring 123 and star 127 are the same as in the FIG. 2 embodiment. However, in the FIG. 4 embodiment, the star 127 only rotates, while the ring 123 only orbits.
  • the housing 101 defines a plurality of semicircular cutouts, each of which receives a roller 103.
  • the ring 123 defines, about its outer periphery, a plurality of arcuate cutouts 105, each of which corresponds to one of the rollers 103.
  • communication of fluid to and from the expanding and contracting volume chambers 129 will cause the ring 123 to orbit, while the engagement of the rollers 103 in the cutouts 105 prevents the ring 123 from rotating, thus permitting solely rotational motion of the star 127.
  • the housing 101 includes a boss portion 171 which defines an opening 173 including a bore portion 175 and threaded portion 177. Disposed within the opening 173 is an actuation mechanism 183, including a back-up member 185 defining a surface 187. The mechanism 183 further includes an actuator 189 having a threaded portion 191, a serrated portion 193, and another threaded portion 195. All of the elements just described may be of the same structure as the corresponding elements in the FIG. 2 embodiment.
  • the adjacent roller Upon actuation of the mechanism 183, which is accomplished in the same way as in the FIG. 2 embodiment, the adjacent roller is moved radially inwardly, and thus, that particular roller may also be considered a lock member 181. With the lock member 181 in the actuated position, normal orbital movement of the ring 123 is prevented, and therefore, normal rotational movement of the star 127 is also prevented.
  • the present invention provides a simple, inexpensive and efficient way of locking the gerotor displacement mechanism in the manner of a parking brake or a load holding device.
  • the present invention makes it possible to accomplish this without the need to add any additional sections to the motor, and as shown in the FIG. 2 embodiment, only the gerotor ring 23 is modified, all other parts are the same as in the standard motor.
  • the present invention makes it possible to provide a motor lock with no substantial increase in the size or weight of the motor, or the space required by the motor.

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

Claims (17)

1. Dispositif rotatif à pression de fluide du type comprenant un moyen formant carter (21) qui définit un moyen d'entrée de fluide (57) et un moyen de sortie de fluide (61); un train d'engrenages intérieur (17) associé audit moyen formant carter et comprenant un élément à denture intérieure (23) et un élément à denture extérieure (27) disposé excentriquement dans l'élément à denture intérieure, l'un desdits éléments décrivant un mouvement de rotation autour de son axe, et l'un desdits éléments décrivant un mouvement orbital autour de l'axe de l'autre élément, les dents desdits éléments étant en engrènement mutuel pour définir des chambres à volume (29) en expansion et en contraction pendant ces mouvements; des moyens distributeurs (19; 55) qui peuvent entrer en action en réponse à l'un desdits mouvements pour transmettre du fluide dudit moyen d'entrée de fluide à l'une desdites chambres à fluide en expansion et en contraction et de l'autre desdites chambres à fluide auxdits moyens de sortie de fluide; un moyen formant arbre d'entrée-sortie (31) et un moyen (41) qui peut être mis en action pour transmettre un couple entre ledit moyen formant arbre d'entrée- sortie et l'un desdits éléments dentés, caractérisé par:
(a) un élément de blocage (81) associé fonctionnellement audit élément à denture intérieure et disposé au moins partiellement dans l'une desdites chambres à volume;
(b) un moyen d'actionnement (83) associé fonctionnellement audit élément de blocage et pouvant être mis en action pour déplacer ledit élément de blocage entre une première position, dans laquelle ledit élément de blocage est placé de manière à permettre le mouvement orbital et de rotation normal desdits éléments dentés, et une deuxième position, dans laquelle ledit élément de blocage s'étend sur une distance suffisante dans ladite chambre à volume pour entrer en contact avec l'une des dents extérieures dudit élément à denture extérieure lorsque ladite chambre à volume se rapproche du volume de chambre minimum, afin d'interdire toute poursuite du mouvement orbital dudit élément à mouvement orbital, en empêchant ainsi à la rotation dudit élément à mouvement de rotation.
2. Dispositif rotatif à pression de fluide selon la revendication 1, caractérisé en ce que ledit élément à denture intérieure définit un évidement (79) disposé circonférentiellement entre deux dents intérieures adjacentes, ledit élément de blocage étant disposé au moins partiellement dans ledit évidement et pouvant se déplacer radialement dans celui-ci.
3. Dispositif rotatif à pression de fluide selon la revendication 1, caractérisé en ce que ledit élément de blocage comprend un élément de forme allongée et essentiellement cylindrique, définissant un axe orienté sensiblement parallèlement audit axe dudit élément à mouvement de rotation.
4. Dispositif rotatif à pression de fluide selon la revendication 1, caractérisé en ce que ledit moyen d'actionnement comprend ledit élément à denture intérieure, qui définit une ouverture (73) s'étendant dans une direction générale radiale, et des moyens de réglage (85, 89) disposés dans ladite ouverture et pouvant être mis en action pour déplacer ledit élément de blocage entre ladite première position et ladite deuxième position en réponse à un mouvement d'entrée appliqué auxdits moyens de réglage.
5. Dispositif rotatif à pression de fluide selon la revendication 1, caractérisé en ce que le mouvement dudit élément de blocage entre ladite première position et ladite deuxième position requiert un mouvement radial dudit élément de blocage de moins de 2,54 mm (0,100 pouce).
6. Mécanisme à déplacement à gerotor du type comprenant un élément à denture intérieure (23) qui possède une pluralité (N+1) de dents intérieures (25) et un élément à denture extérieure (27) disposé excentriquement dans ledit élément à denture intérieure et possédant une pluralité (N) de dents extérieures, lesdits éléments étant configurés de manière à décrire un mouvement relatif orbital et de rotation l'un par rapport à l'autre, les dents desdits éléments engrenant mutuellement pour définir des chambres (29) à volume en expansion et en contraction pendant ledit mouvement relatif, caractérisé par:
(a) un élément de blocage (81) associé fonctionnellement audit élément à denture intérieure et disposé au moins partiellement dans l'une desdites chambres à volume;
(b) un moyen d'actionnement (83) associé fonctionnellement audit élément de blocage et pouvant être mis en action pour déplacer ledit élément de blocage entre une première position, dans laquelle ledit élément de blocage est placé de manière à permettre un mouvement relatif orbital et de rotation normale entre lesdits éléments dentés, et une deuxième position, dans laquelle ledit élément de blocage s'étend sur une distance suffisante dans ladite chambre à volume pour entrer en contact avec l'une desdites dents extérieures dudit élément à denture extérieure lorsque ladite chambre à volume s'approche du volume de chambre minimum afin de bloquer la poursuite du mouvement orbital relatif entre lesdits éléments, en empêchant ainsi toute poursuite du mouvement relatif de rotation entre lesdits éléments.
7. Mécanisme à déplacement à gerotor selon la revendication 6, caractérisé en ce que ledit élément à denture intérieure définit un évidement (79) disposé circonférentiellement entre deux dents intérieures adjacentes, ledit élément de blocage étant disposé au moins partiellement dans ledit évidement et étant mobile dans une direction radiale dans celui-ci.
8. Mécanisme à déplacement à gerotor selon la revendication 6, caractérisé en ce que ledit élément de blocage comprend un élément (81) de forme allongée essentiellement cylindrique, qui définit un axe orienté sensiblement parallèlement à l'axe dudit élément à mouvement de rotation.
9. Mécanisme à déplacement à gerotor selon la revendication 6, caractérisé en ce que ledit moyen d'actionnement comprend ledit élément à denture intérieure, qui définit une ouverture (73) qui .s'étend dans une direction générale radiale, et des moyens de réglage (85, 89) disposés dans ladite ouverture, et pouvant être mis en action pour déplacer ledit élément de blocage entre ladite première position et ladite deuxième position en réponse à un mouvement d'entrée appliqué auxdits moyens de réglage.
10. Mécanisme à déplacement à gerotor selon la revendication 6, caractérisé en ce que le mouvement dudit élément de blocage entre ladite première position et ladite deuxième position requiert un déplacement radial dudit élément de blocage de moins de 2,54 mm (0,100 pouce).
11. Mécanisme à déplacement à gerotor selon la revendication 9, caractérisé en ce que lesdits moyens de réglage comprennent un élément d'actionnement à filetage extérieur (89) qui est engagé par vissage avec ladite ouverture s'étendant radialement, de sorte que la rotation dudit élément d'actionnement se traduit par un déplacement radial de celui-ci entre ladite première position et ladite deuxième position.
12. Mécanisme à déplacement à gerotor selon la revendication 11, caractérisé en ce que ledit moyen d'actionnement comprend un élément d'appui (85) pouvant être mis en action pour transmettre un mouvement dirigé radialement vers l'intérieur dudit élément d'actionnement audit élément de blocage, ledit élément d'appui comprenant un moyen d'étanchéité destiné à empêcher substantiellement une fuite de fluide, depuis ladite chambre à volume à travers ladite ouverture s'étendant radialement.
13. Mécanisme à déplacement à gerotor du type comprenant un carter (101), un élément à denture intérieure (123) disposé dans ledit carter et possédant une pluralité (N+1) de dents intérieures (125), un élément à denture extérieure (127) disposé excentriquement dans ledit élément à denture intérieure et possédant une pluralité (N) de dents extérieures, les dents desdits éléments engrenant mutuellement pour définir des chambres à volume en expansion et en contraction (129) pendant un déplacement relatif entre elles, ledit élément à denture extérieure étant monté pour décrire uniquement un mouvement de rotation autour de son axe et ledit élément à denture intérieure et ledit carter comprenant des moyens (103, 105) qui interdisent le mouvement de rotation dudit élément à denture intérieure et permettent uniquement un mouvement orbital de celui-ci, caractérisé par:
(a) un élément de blocage (181) associé fonctionnellement audit carter et disposé dans une position radialement adjacente audit élément à denture intérieure;
(b) un moyen d'actionnement (83) associé fonctionnellement audit élément de blocage et pouvant être mis en action pour déplacer ledit élément de blocage entre une première position, dans laquelle ledit élément de blocage est placé de manière à permettre un mouvement orbital normal dudit élément à denture intérieure, et une deuxième position, dans laquelle ledit élément de blocage est déplacé jusqu'à une position située radialement à l'intérieur, sur une distance suffisante pour entrer en contact avec ledit élément à denture intérieure afin de bloquer toute poursuite du mouvement orbital de celui-ci, et d'empêcher toute poursuite du mouvement de rotation dudit élément à denture extérieure.
14. Mécanisme à déplacement à gerotor selon la revendication 13, caractérisé en ce que ledit élément de blocage comprend un élément de forme allongée essentiellement cylindrique, qui définit un axe orienté sensiblement parallèlement à l'axe dudit élément à denture extérieure.
15. Mécanisme à déplacement à gerotor selon la revendication 13, caractérisé en ce que ledit moyen d'actionnement comprend ledit carter, qui définit une ouverture orientée sensiblement radialement, et des moyens de réglage disposés dans ladite ouverture et pouvant être mis en action pour déplacer ledit élément de blocage entre ladite première position et ladite deuxième position en réponse à un mouvement d'entrée appliqué auxdits moyens de réglage.
16. Mécanisme à déplacement à gerotor selon la revendication 15, caractérisé en ce que lesdits moyens de réglage comprennent un élément d'actionnement fileté extérieurement engagé par vissage avec ladite ouverture orientée radialement, de sorte que la rotation dudit élément d'actionnement se traduit par un déplacement radial de celui-ci entre ladite première position et ladite deuxième position.
.17. Dispositif rotatif à pression de fluide du type comprenant un moyen formant carter (21) (101) qui définit un moyen d'entrée de fluide et un moyen de sortie de fluide; un train d'engrenages intérieur associé audit moyen formant carter et comprenant un élément à denture intérieure (23) (123) et un élément à denture extérieure (27) (127), l'un desdits éléments décrivant un mouvement de rotation autour de son axe et l'un desdits éléments décrivant un mouvement orbital autour de l'axe de l'autre élément, les dents desdits éléments engrenant mutuellement pour définir des chambres à volume en expansion et en contraction (29) (129) pendant lesdits mouvements; des moyens distributeurs pouvant être mis en action en réponse à l'un desdits mouvements pour transmettre du fluide dudit moyen d'entrée de fluide à l'une desdites chambres à fluide à volume en expansion et en contraction et de l'autre desdites chambres à fluide audit moyen de sortie de fluide, un moyen formant arbre d'entrée-sortie et un moyen pouvant être mis en action pour transmettre un couple entre ledit moyen formant arbre d'entrée-sortie et l'un desdits éléments dentés, caractérisé par:
(a) un élément de blocage (81) (181) associé fonctionnellement à l'un ou l'autre dudit moyen formant carter et dudit élément à denture intérieure; et
(b) un moyen d'actionnement (83) (183) associé fonctionnellement audit élément de blocage et pouvant être mis en action pour déplacer ledit élément de blocage entre une première position, dans laquelle le(s) dit(s) élément(s) de blocage est placé de manière à permettre le mouvement orbital et de rotation normal dudit (desdits) élément(s) denté(s), et une deuxième position, dans laquelle ledit élément de blocage est disposé de manière à entrer en contact avec une surface définie par celui desdits éléments qui décrit un mouvement orbital, ladite surface étant orientée sensiblement parallèlement audit axe dudit élément décrivant un mouvement de rotation pour limiter toute poursuite du mouvement orbital de celui-ci, en empêchant ainsi la rotation dudit élément décrivant un mouvement de rotation.
EP19840302283 1983-04-04 1984-04-03 Moteur hydraulique avec engrenage intérieur et frein de stationnement y utilisé Expired EP0124299B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48197283A 1983-04-04 1983-04-04
US481972 1983-04-04

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EP0124299A2 EP0124299A2 (fr) 1984-11-07
EP0124299A3 EP0124299A3 (en) 1986-12-17
EP0124299B1 true EP0124299B1 (fr) 1989-03-22

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EP (1) EP0124299B1 (fr)
JP (1) JPS59194083A (fr)
DE (1) DE3477415D1 (fr)
DK (1) DK162791C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4276298A1 (fr) * 2022-05-10 2023-11-15 Honeywell International Inc. Systèmes d'actionneur pour inverseur de poussée

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US4613292A (en) * 1985-02-01 1986-09-23 Eaton Corporation Hydraulic motor having free-wheeling and locking modes of operation
DE19727887C2 (de) * 1997-07-01 1999-04-15 Danfoss As Hydraulische Maschine
CN102168643B (zh) * 2011-03-25 2013-04-17 意宁液压股份有限公司 摆线液压马达配流器的新结构
KR101535266B1 (ko) * 2014-04-16 2015-07-08 해원산업주식회사 원유저장탱크 세척용 세척수 분사장치
US9850898B2 (en) 2015-03-24 2017-12-26 Ford Global Technologies, Llc Gerotor pump for a vehicle
IT201800008269A1 (it) * 2018-08-31 2020-03-02 Dana Motion Systems Italia Srl Macchina idraulica orbitale perfezionata e metodo di regolazione di una macchina orbitale.

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US3572983A (en) * 1969-11-07 1971-03-30 Germane Corp Fluid-operated motor
US3616882A (en) * 1970-02-05 1971-11-02 Trw Inc Hydraulic motor-pump assembly with built-in brake
DE2224484A1 (de) * 1972-05-19 1973-12-06 Ahmed Solhtschi Vorrichtung fuer ein angetriebenes fahrzeug, insbesondere kraftfahrzeug
DE2844844A1 (de) * 1978-10-14 1980-04-17 Rexroth Gmbh G L Kreiskolbenmaschine
US4343600A (en) * 1980-02-04 1982-08-10 Eaton Corporation Fluid pressure operated pump or motor with secondary valve means for minimum and maximum volume chambers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4276298A1 (fr) * 2022-05-10 2023-11-15 Honeywell International Inc. Systèmes d'actionneur pour inverseur de poussée

Also Published As

Publication number Publication date
JPS59194083A (ja) 1984-11-02
EP0124299A2 (fr) 1984-11-07
DK122084D0 (da) 1984-02-28
DE3477415D1 (en) 1989-04-27
EP0124299A3 (en) 1986-12-17
DK122084A (da) 1984-10-05
DK162791C (da) 1992-04-27
JPH033072B2 (fr) 1991-01-17
DK162791B (da) 1991-12-09

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