EP1984600A1 - Poussoir segmente ajustable - Google Patents

Poussoir segmente ajustable

Info

Publication number
EP1984600A1
EP1984600A1 EP07726401A EP07726401A EP1984600A1 EP 1984600 A1 EP1984600 A1 EP 1984600A1 EP 07726401 A EP07726401 A EP 07726401A EP 07726401 A EP07726401 A EP 07726401A EP 1984600 A1 EP1984600 A1 EP 1984600A1
Authority
EP
European Patent Office
Prior art keywords
segmentverdränger
displacement elements
elements
displacer
segment
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.)
Withdrawn
Application number
EP07726401A
Other languages
German (de)
English (en)
Inventor
Roland Eckgold
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1984600A1 publication Critical patent/EP1984600A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • 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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3441—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F01C1/3442—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • 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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3441—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F01C1/3445—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle

Definitions

  • the invention relates to a segment displacer comprising
  • a housing in which a cylindrical hollow body is arranged with a cylinder wall, which forms a cylinder chamber,
  • the cylindrical hollow body is arranged in a relative to the housing movable slide, which varies depending on the position of the slider, the volume of the space segments.
  • Segment displacers generally include a stator, a cylindrical hollow body having in its longitudinal axis a rotor, i. an axis of rotation encloses.
  • the axis of rotation usually runs longitudinally through the cylindrical hollow body.
  • Radially mounted displacement elements on the rotation axis divide the cylinder chamber into space segments.
  • the displacers are simple surfaces, but other geometric bodies are also used for technical reasons.
  • the displacer elements are made to rotate with the rotation axis.
  • Liquid gas mixtures pass through an inlet and are discharged again through an outlet, such a segment displacer can be used for example as a pump.
  • a segment displacer can be used for example as a pump.
  • the pressures can be regulated accordingly.
  • Such pumps are also used as hydraulic pumps throughout the vehicle and machine area.
  • rotary vane pumps there are also known rotary vane pumps.
  • one or more, usually radially arranged guides are incorporated into the rotor.
  • These guides sit the rotary valve.
  • These slides divide the space between stator and rotor into several space segments.
  • the rotary valves can move in the guides. They are usually attached by a in the bottom of the slot
  • Wankel engine internal combustion engine is a segment displacer.
  • This Wankel engine also referred to as a rotary piston engine, is an internal combustion engine in which reversal-free movement of a so-called rotary piston, which is arranged on an eccentric shaft, revolves in a trochoid housing and at the same time rotates about its own axis.
  • the contour of the rotary piston consists of three flattened circular arcs and looks like a Reuleaux triangle. The corners are standing constantly in contact with the Trochoid housing and thus form three independent work spaces.
  • DE 10 2004 035 743 A1 discloses a variable displacement pump with a displaceable cam ring, in which there is a rotatable drive shaft with a rotor.
  • the rotor has slots formed radially of the drive shaft for holding
  • the rotor blades are held radially movable and lie on
  • the cam ring can be compared to the rotor with hydraulic
  • Movements are moved to vary the capacity of the positive displacement pump.
  • EP 0 398 377 B1 describes a rotary hydraulic pump as a combination of vane pump and centrifugal pump.
  • a sliding contour ring is provided, in which a rotor rotates with wings. The wings abut the contour ring and are guided by radial slots in the rotor radially movable. By shifting the contour ring, the pumping power of the vane pump can be changed.
  • a pressure medium motor which is designed as a rotary valve motor with a displaceable rotor cylinder and a rotor rotatably mounted therein.
  • a pressure medium In radial recesses of the rotor slide are arranged radially movable.
  • the motor By introducing a pressure medium, the motor is driven. In this case, the speed can be controlled by moving the rotor cylinder.
  • the object of the invention is therefore to provide a Segmentverdränger that optimally exploits the available volume during operation.
  • the volumes of the space segments should be able to be changed in a simple and cost-effective manner.
  • Space segments are coupled via exchange links.
  • the invention is based on the principle of combining two movements.
  • the volume generated by the displacer elements is coupled to the volumes which arise in the guide of the displacer elements via suitable exchange connections.
  • the total available volume of the segment displacer according to the invention is optimally utilized. Even at relatively low speeds you get, in the case of a pump, a relatively high pump power. In this way a changeable parameter is present, with which not only the place of the
  • Space segments changed by the rotation, but in addition the volumes of the space segments can be varied. This opens up the possibility of gases, Liquids or liquid gas mixtures with additional volume on the one hand to compress or relax.
  • a preferred embodiment of the subject invention also results from the fact that the exchange connections are arranged in a housing cover.
  • exchange connections can be realized in a simple manner.
  • exchange connections which are formed for example as suitable holes or channels in the housing cover, the different volumes can be coupled together.
  • the erf ⁇ ndungsdorfen segment displacer connect the exchange connections depending on the position of the displacement in the cylindrical hollow body, the space segments with the variable cavities. Depending on the position of the displacement elements, the corresponding cavities are assigned to the individual space segments and connected to one another. This ensures that only certain volumes are coupled together at defined times via the exchange links.
  • the exchange connections are controlled via a valve control. This ensures that very precise times for a coupling of the different volumes can be produced.
  • guiding and / or holding means are provided on the axis of rotation, in which the displacement elements are movably guided and / or held.
  • the displacement elements are in a single operation of the Segmentverdrfiters in radial movements
  • a displacement element with the guide or holding means forms a space segment wall. These space segments rotate about the axis of rotation. Centrifugal forces ensure, when the rotation axis rotates, that the displacer elements are pressed against the cylinder inner wall along the positive guide. This effect on the seal is also assisted in the pressure region of the space segments by the pressure prevailing in the space segment being transmitted via the exchange connections to the variable cavities. Thus, the displacer with this pressure of the pressure range against the cylinder inner wall pressed.
  • the displacement elements seal the space segments against each other. The displacer elements are held in a radial position.
  • Displacer provided against the cylinder inner wall.
  • the tensioning means are then designed as spring elements.
  • the spring elements are, for example, in suitable spring channels of
  • the displacer elements are arranged symmetrically about the axis of rotation.
  • the axis of rotation there is no imbalance in the rotation.
  • three displacement elements may be arranged in a star shape around the axis of rotation.
  • a preferred embodiment of the invention results by providing an inlet and / or outlet in the cylindrical hollow body.
  • an inlet and / or outlet in the cylindrical hollow body.
  • the valve control can control both the inlet and outlet timing, as well as the inlet and outlet.
  • the segment displacer can be so, for example, as in accordance with an advantageous embodiment is proposed to use as a pump.
  • a relatively small hydraulic pump can be realized, which achieves particularly high pressures.
  • the segment displacer according to the invention thereby finds applications, for example, in automobiles, aircraft or other machines. Because of the simplicity, both the manufacturing costs and the dimensions and the weight are to be kept relatively low when comparing the segment displacer according to the invention with comparable devices.
  • segment displacer is not used as a pump, it can be formed according to a further advantageous embodiment as an internal combustion engine.
  • the segment displacer according to the invention itself can serve as a drive. Depending on the position of the slide, gases, liquids or liquid gas mixtures can be compressed with little effort to high pressures or correspondingly relax.
  • a particularly advantageous variant of the segment displacer according to the invention is obtained by providing an actuator for the movable slide.
  • the actuator such as an electric motor with a suitable gear moves the slider in the desired position.
  • the actuator on a control control that automatically controls the position of the slide. This may in particular be a processor-controlled control control.
  • segment displacer means for positive guidance of the displacer elements are provided.
  • FIG. 1 shows a schematic diagram in a schematic section of a segment displacer according to the invention, in which the slide in a
  • FIG. 2 shows a schematic diagram of a schematic section of a segment displacer according to the invention, in which the slider is set in an end position.
  • Fig. 3 shows a schematic diagram of a housing cover of an inventive
  • FIG. 1 a schematic section of an inventive segment displacer 10 is shown as a schematic diagram.
  • the segment displacer 10 comprises a housing 12 in which a slider 14 is arranged.
  • the slider 14 has a push element 16, which protrudes from an opening 18 of the housing 12. With the help of the pushing element 16, the slider 14 can be moved in the housing 12.
  • the housing 12 has sufficient free space for movement 19 for the slider 14.
  • the slider 14 and the pusher 16 are in the present figure in a starting position and are shown crosshatched.
  • a cylindrical hollow body 20 is further arranged.
  • the side of the cylindrical hollow body 20 becomes the cylinder wall 22 - consequently, the inner side is referred to as the cylinder inner wall 24.
  • a cylinder chamber 26 is formed.
  • This cylinder chamber 26 encloses a rotation axis 28 on which radial displacement elements 30, 32, 34, 36 are arranged.
  • the rotation axis 28 is rotatably supported in suitable bearings 38 of the housing 12.
  • the bearings 38 are indicated only as dashed lines.
  • the rotation axis 28 has in the present exemplary embodiment a square arrangement 40 as a base 42 for the displacement elements 30, 32, 34, 36. At the corners of the square arrangement 40 guide elements 44 are provided. The displacement elements 30, 32, 34, 36 are movably guided between the guide elements 44. The displacement elements 30, 32, 34, 36 are tensioned with clamping means, which are designed as spring elements 46. The spring elements 46 are arranged in holes 48 of the displacement elements 30, 32, 34, 36. The contact surfaces of the displacement elements 30, 32, 34, 36 with the cylinder inner wall 24 close tight. Optionally, suitable sealants known to those skilled in the art may be used to produce the seal.
  • the rotation axis, as well as the abovementioned components arranged on the rotation axis 28 and rotating with the rotation axis 28 are referred to below as rotation bodies 49.
  • the displacers 30, 32, 34, 36 further divide the cylinder chamber 26 into space segments 50, 52, 54, 56. In the starting position, as shown in Fig. 1, all space segments 50, 52, 54, 56 have the same Volume.
  • the displacement elements 30, 32, 34, 36 seal all space segments 50, 52, 54, 56 against each other.
  • the guide elements 44 leave the displacement elements 30, 32, 34, 36 sufficient movement space 58, so that they can move between the guide elements 44.
  • the movement space 58 forms a variable cavity 55.
  • the guide elements 44 and displacement elements 30, 32, 34, 36 form between the rotation axis 28 and cylinder inner wall 24 respectively surfaces which are also designed to be dense.
  • FIG. 2 shows a schematic diagram in a schematic section of the segment displacer 10, in which the slider 14 is set in an end position. Insofar as the constituents correspond to FIG. 1, the reference numerals are retained.
  • the position of the rotation axis 28 with respect to the housing 12 has not changed.
  • the slide 14 is displaced into an end position into the movement space 19, arrow 62.
  • the displacement of the slide 14 by means of the push element 16 causes the space segments 50, 52, 54, 56 to vary in size. While the space segments 52, 54 increase their volume in their currently imaged area, the space segments 50, 56 decrease correspondingly in the opposite region of the rotation body 49.
  • the displacement elements 30, 32, 34, 36 are movably arranged between the guide elements 44, so that they always tightly nestle upon rotation of the rotary body 49, even when moving the slider 14, to the cylinder inner wall 24.
  • FIG. 3 shows a housing cover 59 of a segment displacer 10 according to the invention with exchange connections 57.
  • the exchange connections 57 couple the space segments 50, 52, 54, 56 respectively to the corresponding variable cavities 55.
  • the housing cover 59 seals the housing 12 of the segment displacer 10 so that only couplings between the volumes can be made via the exchange connections 57.
  • the adjustable segment displacer 10 can now be used e.g. Increase the compression pressure or lower it on the corresponding opposite side.
  • Liquids, gases or liquid gas mixtures, which are located in the space segments 50, 52, 54, 56 behave accordingly.
  • the simple way to increase the pressure by the slide 14 is actuated, for example, be used in hydraulic pumps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un poussoir segmenté (10) qui présente un boîtier (12) dans lequel se trouve un corps cylindrique creux (20). Un axe de rotation (28) est monté à rotation dans le boîtier (12). Des éléments de poussoir (30, 32, 34, 36) sont prévus radialement sur l'axe de rotation (28). Le corps creux (20) entoure axialement l'axe de rotation (28) par les éléments de poussoir (30, 32, 34, 36) qui divisent ainsi de manière étanche l'espace situé entre la paroi cylindrique et l'axe de rotation (28) en segments (50, 52, 54, 56). Le corps creux (20) est disposé dans un coulisseau (14) qui peut se déplacer par rapport au boîtier (12). Le volume des segments (50, 52, 54, 56) se modifie en fonction de la position du coulisseau (14). Des moyens de guidage et/ou de maintien (44) prévus sur l'axe de rotation (44) guident les éléments de poussoir (30, 32, 34, 36) à déplacement. Les moyens de guidage et/ou de maintien (44) forment avec les éléments de poussoir (30, 32, 34, 36) des espaces creux variables (55) qui sont accouplés par des liaisons remplaçables (57) aux segments (50, 52, 54, 56).
EP07726401A 2006-02-16 2007-02-16 Poussoir segmente ajustable Withdrawn EP1984600A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610007519 DE102006007519A1 (de) 2006-02-16 2006-02-16 Einstellbarer Segmentverdränger
PCT/EP2007/051512 WO2007093637A1 (fr) 2006-02-16 2007-02-16 Poussoir segmenté Ajustable

Publications (1)

Publication Number Publication Date
EP1984600A1 true EP1984600A1 (fr) 2008-10-29

Family

ID=38001694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726401A Withdrawn EP1984600A1 (fr) 2006-02-16 2007-02-16 Poussoir segmente ajustable

Country Status (3)

Country Link
EP (1) EP1984600A1 (fr)
DE (1) DE102006007519A1 (fr)
WO (1) WO2007093637A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047516B4 (de) * 2008-09-12 2010-11-25 Hüttlin, Herbert, Dr. h.c. Pumpe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398377B1 (fr) * 1989-05-19 1994-08-24 Vickers Incorporated Machine rotative hydraulique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066608A (en) * 1960-11-22 1962-12-04 William T Livermore Multiple ported transmission pump
FR2040688A5 (fr) 1969-04-09 1971-01-22 Peugeot & Renault
US3964844A (en) 1973-09-24 1976-06-22 Parker-Hannifin Corporation Vane pump
DE2425091A1 (de) * 1974-05-24 1975-11-27 Leo L Tompkins Druckmittelmotor
CH661096A5 (en) 1983-11-15 1987-06-30 Hans Ryffel Vane cell machine
FR2598746B1 (fr) * 1986-05-16 1990-02-09 Bitar Joseph Machine a piston rotatif.
DE19840791A1 (de) * 1998-09-08 2000-09-14 Jaeker Karl Peter Flügelzellenpumpe/-motor ohne definierte Saug-/Druckseite für den 4-Quadrantenbetrieb
JP4146312B2 (ja) * 2003-07-25 2008-09-10 ユニシア ジェーケーシー ステアリングシステム株式会社 可変容量形ポンプ
US7371053B2 (en) * 2004-07-29 2008-05-13 General Motors Corporation Two-stage hydraulic pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398377B1 (fr) * 1989-05-19 1994-08-24 Vickers Incorporated Machine rotative hydraulique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007093637A1 *

Also Published As

Publication number Publication date
DE102006007519A1 (de) 2007-08-30
WO2007093637A1 (fr) 2007-08-23

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