Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
  • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
  • F15B15/08—Characterised by the construction of the motor unit
  • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
  • F01C19/00—Sealing arrangements in rotary-piston machines or engines
  • F01C19/10—Sealings for working fluids between radially and axially movable parts
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
  • F01C9/00—Oscillating-piston machines or engines
  • F01C9/002—Oscillating-piston machines or engines the piston oscillating around a fixed axis

Definitions

• the invention relates to a swing-wing motor with a housing and at least one housing-side arranged wing (as a stator) and a shaft with at least one shaft side arranged wing (as a rotor), wherein between the housing and the housing-side wing and the shaft and the shaft side Wing at least two working spaces are formed, which are sealed axially by at least one pressure plate.
• a swing wing motor with a housing and at least one housing-side arranged wing (as a stator) and a shaft with at least one shaft side arranged wing (as a rotor), wherein between the housing and the housing-side wing and the shaft and the shaft side Wing at least two working spaces are formed, which are sealed axially by at least one pressure plate.
• a swing-wing motor with a housing and at least one housing-side arranged wing (as a stator) and a shaft and at least one shaft side arranged wing (as a rotor), wherein between the housing and the housing-side wing and between the shaft and the at least two working spaces are formed on the shaft-side wings, which are sealed axially by at least one pressure plate, wherein the pressure plate is clamped either on the housing side or on the rotor side and bears resiliently on the respective other part.
• This has the advantage that a sealing effect of the pressure plate is realized even in the unpressurized state.
• the pressure plate is thus simultaneously spring element to produce a bias and thereby ensure the desired sealing effect even in the non-pressurized state (fail-safe). Further biasing elements omitted.
• a swing-wing motor which has two pressure plates, which are arranged symmetrically between the housing and the rotor. This has the advantage that a symmetrical arrangement of two pressure plates ensures the axial centering of the rotor blade section.
• An inventive swing-wing motor is characterized in that the bias by the geometric shape of the pressure plate, which in the assembly of Schwenkflü- gelmotors is deformed, is applied. Also, a swing-wing motor is preferred in which the pressure plate has a relief groove for targeted local deformation. This has the advantage that the deformation point can be attached to a defined location and serve the remaining parts of the pressure plate as a sealing bearing surface, without deforming and thus without changing the sealing surface.
• a swing-wing motor is preferred in which at least one pressure plate has through holes for each working space. This has the advantage that the lines can be mounted axially on the swivel motor and do not increase the radial space.
• a swing-wing motor is preferred in which the working pressure in the working space acted upon by operating pressure is passed through a switching mechanism in the pressure chamber behind the pressure plate (between the axial housing wall and pressure plate), optionally by a valve switching mechanism.
• Another inventive swing-wing motor is characterized in that the switching mechanism is integrated into the wing sealing device. Also, a swing-wing motor is preferred in which the switching mechanism is realized by bores below the wing seal in the rotor blade when the pressure plate is clamped on the housing side, or in the housing wing when the pressure plate is clamped on the rotor side. Furthermore, a swing-wing motor is preferred in which the acted upon with the working pressure side of the wing seal compresses or displaces the wing seal and therefore releases the respective hole in the wing to the pressure chamber behind the pressure plate. This has the advantage that no separate valve devices are needed, but that the compressible or displaceable leaf seal together with the holes performs this valve function.
• a swing-wing motor is preferred in which the wing seals are made of PTFE. Furthermore, a swing-wing motor is preferred in which the pressure plate has additional seals for the delimitation of certain pressure fields.
• FIG. 1 shows an exploded view of a swing-wing motor according to the invention.
• FIG. 2 shows a printing plate according to the invention.
• FIG. 3 shows a cross section through the swing-wing motor.
• FIG. 4 shows a section A-A through the illustration from FIG. 3.
• Figure 5 shows in cross section the pressure plate according to the invention before and after assembly.
• Figure 6 shows the switching mechanism through the wing seal in supervision.
• Figure 7 shows the switching mechanism through the wing seal in a lateral cross-section.
• FIG. 1 shows a swivel-wing motor according to the invention in a three-dimensional exploded view.
• a housing 1 two housing-side arranged wings 3 are shown, which each have a groove 5 for a corresponding sealing device.
• the housing 1 with the housing-side wings 3 can also be referred to as a stator.
• a shaft 7 is rotatably mounted with two wings arranged on the shaft side 9, wherein the shaft 7 and the two wings 9 can also be referred to as a rotor.
• the wings 3 of the housing 1 and the wings 9 of the shaft form working spaces 13 and 15, respectively, which are larger or smaller depending on the position between the wings 9 and the wings 3 can.
• the shaft 7 with its two wings 9 can thus oscillate back and forth in the housing 1 between the two housing-side wings 3 in the work spaces and thus make an angular limited rotational movement in one or the other direction, ie a so-called pivoting movement.
• Such swivel motors are used, for example, to turn the anti-roll bar in accordance with a roll stabilization system of a motor vehicle, with one stabilizer half being fastened to the housing 1 and the other stabilizer half to the shaft 7.
• the housing 1 can be closed by a corresponding housing cover 17.
• a pressure plate 19 is introduced for axial sealing of the housing 1 with the two housing-side wings 3 and the shaft 7 with the two wel- side wings 9.
• Both in the housing cover 17 as - A - also in the pressure plate 19 are through holes 21 a and 21 b for filling and emptying of the working spaces 13 and through holes 23 a and 23 b for filling and emptying of the working spaces 15 introduced.
• the respective opposing work spaces are pressurized by cross connections in the shaft, not shown here.
• FIG 3 such a swing wing motor is shown in cross section.
• the same parts as in Figure 1 are provided with the same reference numerals.
• the housing 1 is closed by the cover 17, wherein between the housing 1 and the cover 17, the pressure plate 19 is clamped.
• the shaft 7 is arranged accordingly and stored in the lid 17 and in a second cover 27.
• a second pressure plate 29 is clamped.
• the cross-section shown here is in the rotor area, ie in the shaft 7, by the shaft side wing (wing 9 in Figure 1) and within this wing by the wing seal 33.
• the working space 31 is above the passage opening 21 a in the lid 17 and the passage opening 21 b in the pressure plate 19 connected to the pressure supply (not shown here) of the swing-wing motor. It can be seen in cross-section that, for example, between the housing cover 17 and the pressure plate 19, a pressure chamber 35 is shown and between the second housing cover 27 and the second pressure plate 29, a second pressure chamber 37. These pressure chambers 35 and 37 are from each acted upon with pressure working spaces (In Figure 1, the working spaces 13 or 15) is pressurized, as will be described in Figure 6 and 7 yet.
• the respective opposite pressure chambers 13 of Figure 1 and 15 of Figure 1 are connected to each other through through holes 38 and 39 in the shaft.
• FIG. 4 shows a cross section AA through FIG. Within the housing 1 gray hatched shown the pressure plate 19 is arranged.
• the housing 1 has the two housing-side wings 3
• the shaft 7 has the two shaft-side wings 9. Between these wings 3 and 9, the working chambers 15 and 13 are formed, which are subjected to high pressure depending on the control or discharged to the tank.
• Within the wing wing grooves 43 are arranged with seals 41.
• the pressure plate 19 according to the invention in its specific embodiment in cross section together with the housing 1, with the cover 17 and with the shaft 7 is shown.
• the shaft 7 is not yet mounted in the assembled state in the housing 1.
• the pressure plate 19 is clamped with a portion 45 in a groove between the lid 17 and the housing 1. Below the relief groove 25, the pressure plate 19 has a conical forward expiring surface 47th
• FIG. 6 shows a switching device by means of the leaf seal 49, with which the working pressure can be introduced from the respective pressurized working spaces 13 or 15 in the pressure chamber 35 behind the pressure plate 19 to additionally press the pressure plate 19 hydraulically against the rotor.
• the wing seal 49 is narrower in width than the seal groove 43.
• two holes 51 and 53 are mounted in the seal groove 43, which can be seen in cross section in Figure 7.
• the wing seal 43 is acted upon on the surface 55, for example by a working pressure and thus pressed over the bore 53, whereby the bore 51 is free. About the bore 51 can now reach the working pressure in the pressure chamber 35 behind the pressure plate 19 and thus press it axially against the rotor.
• the working pressure acts on the opposite Surface 57.
• the wing seal 49 is pushed within the wellgeldichtungsnut 43 over the bore 51, so that the oblique bore 53 is free.
• working pressure is introduced through the bore 53 in the pressure chamber 35 behind the pressure plate 19 and can also push them again axially against the rotor.
• the preload is designed for the non-pressurized state so that an internal axial clearance can be bridged without the pressure required for sealing on the end face is lost.
• the resilient property of the pressure plates 19, 29 allows compensation of differences in length between the rotor and stator (housing 1), z. B. as a result of manufacturing tolerances and temperature differences.
• the pressure plates 19, 29 at the edge in the region of the annular clamping zone with through-holes 21 b, 23 b are provided, for a connection provide with pressure connections on the lid 17.
• the seal to the cover-side pressure plate chamber is ensured by the high pressure between the pressure plates 19, 29 and the covers 17, 27.
• the working pressure is passed from the acted upon during the pivoting operation with working pressure working space 13, 15 by a switching mechanism in the pressure chamber 35, 37 behind the pressure plate 19, 29.
• a possible embodiment of the switching mechanism consists in its integration in the leaf seal 49.
• Core element here is one (or more) bore (s) 51, 53, which is the working pressure applied to working space 13, 15, starting from the copegeldichtungsnut 43, with the pressure chamber 35, 37 connects.
• the switching mechanism utilizes the deformation or displacement of the working pressure-loaded vane seal 49, which leads to an exposure of the bore openings 51, 53 toward the pressurized pressure chamber 35, 37.
• the invention thus comprises at least one pressure plate 19, 29, which has spring properties at the same time and provides for a prestressed seal at the end faces between adjacent Schwenkhofflarbeitslitis 13, 15 and compensates for the axial play between the rotor and the housing 1.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Actuator (AREA)
• Hydraulic Motors (AREA)
• Sealing With Elastic Sealing Lips (AREA)
• Rotary Pumps (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37719128

Family Applications (2)

Family Applications After (1)

Country Status (4)

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• 2006
  • 2006-11-10 DE DE112006003178T patent/DE112006003178A5/de not_active Withdrawn
  • 2006-11-10 EP EP06805508A patent/EP1966495A1/fr not_active Withdrawn
  • 2006-11-10 EP EP10005040A patent/EP2228543B1/fr not_active Not-in-force
  • 2006-11-10 AT AT10005040T patent/ATE546652T1/de active
  • 2006-11-10 WO PCT/DE2006/001974 patent/WO2007068224A1/fr active Application Filing

Non-Patent Citations (1)

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