EP0087747A2 - Machine à piston rotatif à axe interne sans arbre à excentriques - Google Patents

Machine à piston rotatif à axe interne sans arbre à excentriques Download PDF

Info

Publication number
EP0087747A2
EP0087747A2 EP83101746A EP83101746A EP0087747A2 EP 0087747 A2 EP0087747 A2 EP 0087747A2 EP 83101746 A EP83101746 A EP 83101746A EP 83101746 A EP83101746 A EP 83101746A EP 0087747 A2 EP0087747 A2 EP 0087747A2
Authority
EP
European Patent Office
Prior art keywords
shaft
bearing
rotor
rotary piston
piston machine
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.)
Granted
Application number
EP83101746A
Other languages
German (de)
English (en)
Other versions
EP0087747B1 (fr
EP0087747A3 (en
Inventor
Felix Dr. H.C. Wankel
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
Priority to AT83101746T priority Critical patent/ATE19900T1/de
Publication of EP0087747A2 publication Critical patent/EP0087747A2/fr
Publication of EP0087747A3 publication Critical patent/EP0087747A3/de
Application granted granted Critical
Publication of EP0087747B1 publication Critical patent/EP0087747B1/fr
Expired legal-status Critical Current

Links

Images

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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/008—Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines
    • 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
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines 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
    • F01C1/104—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • 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
    • F01C21/02—Arrangements of bearings
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/10—Rotary-piston pumps specially adapted for elastic fluids 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

Definitions

  • the invention relates to an inner-axis crankshaft-free rotary piston machine with two eccentrically mounted rotors, the circularly curved raceway of the bearing of the outer rotor enclosing the shaft of the inner rotor.
  • Rotary piston machines of the type mentioned are known for example from US-A-724 665, US-A-3 954 355 and GB-PS 961 872.
  • the design principle of a machine of the type mentioned at the outset inevitably entails that the raceway of the two bearings of the outer rotor has a relatively large diameter, since it encloses the shaft of the inner rotor arranged eccentrically to it, if both rotors are not only disadvantageously be stored on one side.
  • the bearings of the rotors of the known machines mentioned are designed as slide bearings, so that they have only a small dimension in the radial direction.
  • the relatively large diameter of the bearing of the outer rotor results in correspondingly high bearing speeds, so that the known machines are only suitable for relatively low rotational speeds and have relatively high friction losses.
  • the use of Licher rolling bearings for the bearing of the external rotor would result in a structurally disadvantageous enlargement of the radial dimension of the bearing or to a further V ergröss mecanic the raceway of the bearing.
  • the speed of rotation of the machine would also be relatively limited, since the large diameter of the raceway would lead to a correspondingly high speed of rotation of the rolling bearing bodies.
  • the present invention is based on the object of avoiding the disadvantages of the known machines, so that they can be operated at significantly higher rotational speeds and thus can be used in small dimensions for new applications, e.g. as a loader or driver of an internal combustion engine.
  • the invention is based on the further object of being able to arrange the shaft of the inner rotor relative to the outer rotor with greater eccentricity and / or to be able to give it a larger diameter.
  • the shaft of the inner rotor can be arranged between such bearing devices so that it is located radially further out.
  • the shaft itself can be one of the bearing devices form by rolling the bearing raceway on the circumference of the shaft or on a ring surrounding the shaft.
  • the bearing devices preferably consist of rollers that can be supported by ball bearings.
  • the bearing of the outer rotor is preferably arranged in the axial direction of the machine between its runners and a drive connection between the runners, the individual bearing devices being carried by a sealing body which is rigidly connected to a fixed outer machine housing and in the bearing raceway of the outer rotor enclosed space extends up to the side surface of the inner rotor and is sealed radially from the outer rotor. Because the sealing body thus provides a radial seal with respect to the outer rotor or the annular space formed by the usual hollow gear of the outer rotor is avoided, it is not necessary for the side face of the inner rotor to cover such a cavity in every movement position by a suitable size of the inner rotor and thus seals to the working area of the machine.
  • the arrangement of the drive connection between the two rotors in the axial direction, given by a pinion engaging in a ring gear, or the arrangement of the bearing in the axial direction between the drive connection and the inner rotor has the further advantage that the cavity of the outer rotor for the passage of the shaft of the Inner rotor can be made smaller in diameter than the diameter of the hollow gear of the outer rotor.
  • the shaft diameter of the inner rotor can advantageously be chosen larger by arranging the shaft between two bearing devices arranged next to one another in the circumferential direction.
  • this does not allow the shaft diameter to be increased at the point at which the pinion of the drive connection between the two rotors is provided, because the diameter of the pinion is determined by the eccentricity between the two rotors and the required transmission ratio.
  • the drive transmission takes place between this pinion and the hollow gear of the outer rotor via two intermediate gears or an intermediate annular gear with internal and external teeth. It is understood that in this case the hollow gear of the external rotor is to be made larger in diameter.
  • the present invention can be advantageously used with all rotary piston machines of the type mentioned at the outset, since the inner-axis construction requires an outer rotor which has a relatively large bearing race in diameter, so that correspondingly high speeds occur in this race.
  • bearing devices in the form of rollers
  • other types of bearing devices can also be used, such as individual magnetic bearings, individual air cushion bearings, etc.
  • the support rollers can also be used for the lateral guidance of the outer rotor, ie they can also absorb forces acting on the outer rotor in the axial direction if they are provided with a wheel flange or a groove which interacts with a groove or a wheel flange of the raceway of the outer rotor.
  • the inner rotor 4 has a circular cross section and rotates in an eccentric movement about the main shaft 6 of the machine, which only rotates about its own axis.
  • the shaft 6 is supported by two roller bearings 9, 10 in sealing bodies 13, 14 which are rigidly connected to the side housing covers 11, 12.
  • a second bearing 15, 16 provided on the outer circumference of the sealing bodies 14, 13 serves to mount the outer rotor 18 about its central axis, which is thus fixed locally. Due to the large diameter of these bearings 15, 16 and the relatively small diameter of the rolling elements of these bearings, the latter are exposed to high rolling speeds and thus high loads, which should be avoided according to the present invention.
  • a seal 20, 21 between the side walls 26, 27 of the extension 18 facing the working space 22 of the machine and the part 19 of the sealing body 13, 14 protruding into it prevents the bearings 9, 10, 15, 16 and a drive transmission 23 between the Internal and external rotors can disadvantageously come into contact with the medium flowing through the machine. The flows Mung takes place through the nozzle 7, 8 attached radially on the outside of the machine housing.
  • the outer rotor 18 enclosing the inner rotor 4 consists of two crescent-shaped peripheral parts 24, 25 lying opposite one another and two side parts 26, 27 enclosing them between one another , so that the inner rotor can execute a reciprocating movement in the working space 22 delimited by these surfaces.
  • This relatively straight-line movement of the inner rotor 4 relative to the outer rotor 18 despite the rotary movement of both rotors results from the kinematics of gimbals.
  • the inner rotor 4 which can also be referred to as a rotary piston, comes into meshing engagement with two gaps in the outer rotor so that it rotates at twice the speed of the outer rotor.
  • the gear ratio accordingly corresponds to 1: 2, so that the pitch circle of the pinion 34 of the drive transmission 23 between the inner and outer rotor has half the diameter of the pitch circle of the hollow gear 35.
  • FIGS. 5-7 show, however, that the ratio of 1: 2 can also be achieved in other ways.
  • the shaft for cooling the inner rotor 4 as shown in FIG Fig. 8 can be made hollow and / or for a greater axial length of the rotor receives a higher strength, can according to the schematic representations of Fig.
  • FIG. 3 and 4 show an embodiment according to the invention in that the outer rotor 18 'is supported by three rollers 52, 53, 54 which are themselves mounted on the sealing body 19'. Two of the rollers (52, 53) are supported by a bearing pin 56 in the sealing body 50, while the third is supported on the shaft 6.
  • These rollers 52 to 54 made of hardened material roll on a bearing ring 58 made of hardened steel, which is inserted into a lateral hub part 60 of the outer rotor.
  • a lateral end face of the hollow gear 62 secures the axial position of this bearing ring 58.
  • a ring 54 can also be firmly attached to the shaft if its diameter is equal to the pitch circle diameter of the pinion 34, so that at the speed ratio of 1: 2 a slip-free rolling on the radially inner running surface of the bearing ring 58 takes place.
  • a sealing ring 66 is provided which ensures the sealing of the part of the machine provided with lubricant together with the seal 20 on the sealing body 19'.
  • the rollers 52-54 can be provided with a circumferential web or wheel flange which has a small cross-section and which engages in a correspondingly shaped groove in the bearing ring 58, so that there is guidance against axial displacement between the shaft and the external rotor is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Hydraulic Motors (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Toys (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • General Details Of Gearings (AREA)
  • Rotary-Type Compressors (AREA)
EP83101746A 1982-03-03 1983-02-23 Machine à piston rotatif à axe interne sans arbre à excentriques Expired EP0087747B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101746T ATE19900T1 (de) 1982-03-03 1983-02-23 Innenachsige kurbelwellenlose rotationskolbenmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1302/82A CH664193A5 (de) 1982-03-03 1982-03-03 Abgasbetriebener rotationskolbenlader.
CH1302/82 1982-03-03

Publications (3)

Publication Number Publication Date
EP0087747A2 true EP0087747A2 (fr) 1983-09-07
EP0087747A3 EP0087747A3 (en) 1984-05-09
EP0087747B1 EP0087747B1 (fr) 1986-05-21

Family

ID=4207255

Family Applications (2)

Application Number Title Priority Date Filing Date
EP83101745A Withdrawn EP0087746A1 (fr) 1982-03-03 1983-02-23 Pompe de suralimentation à piston rotatif entraînée par des gaz d'échappement
EP83101746A Expired EP0087747B1 (fr) 1982-03-03 1983-02-23 Machine à piston rotatif à axe interne sans arbre à excentriques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP83101745A Withdrawn EP0087746A1 (fr) 1982-03-03 1983-02-23 Pompe de suralimentation à piston rotatif entraînée par des gaz d'échappement

Country Status (6)

Country Link
US (1) US4540356A (fr)
EP (2) EP0087746A1 (fr)
JP (3) JPS58180724A (fr)
AT (1) ATE19900T1 (fr)
CH (1) CH664193A5 (fr)
DE (1) DE3363572D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217020A1 (fr) * 1985-08-31 1987-04-08 Wankel, Felix, Dr. h.c. Machine à piston rotatif à axe interne

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3744637A1 (de) * 1987-10-02 1989-04-13 Ruf Renate Drehkolbenverdichter
KR920700352A (ko) * 1989-03-31 1992-02-19 원본미기재 회전식 피스톤 압축기
AT410965B (de) * 2000-07-11 2003-09-25 Buchelt Benno Verbundmotor
KR100516506B1 (ko) * 2004-12-11 2005-09-26 (주)힘틀 맴돌이 펌프
CZ302294B6 (cs) * 2008-07-29 2011-02-09 Dvorák@Jirí Rotacní motor na stlacitelná média
TR200805753A2 (tr) 2008-08-04 2009-03-23 Yaşar Tuncer Yilmaz Rotatif içten patlamalı motor
DE102009040051B4 (de) * 2009-09-03 2014-05-08 Siemens Aktiengesellschaft Freikolbenmaschine mit magnetischer Lagerung des Kolbens
DE102014209864A1 (de) * 2014-05-23 2015-12-17 Bayerische Motoren Werke Aktiengesellschaft Laststeuerorgan für eine mengengeregelte Brennkraftmaschine
RU2664725C1 (ru) * 2017-05-12 2018-08-22 Михаил Владимирович Давыдов Роторно-поршневой двигатель

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556302A (fr) * 1967-12-13 1969-02-07
US3905727A (en) * 1971-07-28 1975-09-16 John B Kilmer Gerotor type fluid motor, pump or the like
US3954355A (en) * 1973-08-27 1976-05-04 Paul Jr Herman L Rotary energy converter
DE2456252A1 (de) * 1974-11-28 1976-06-10 Kernforschungsanlage Juelich Kolbenmaschine zum komprimieren oder zum expandieren von gasen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097478A (en) * 1963-07-16 Exhaust gas driven compressor
DE10382C (de) * L. TAVERDON in Paris Verbesserungen an Matchinen mit rotirenden Kolben
US883271A (en) * 1907-09-16 1908-03-31 George Wilson Rotary pump.
FR699821A (fr) * 1929-07-18 1931-02-20 Powerplus 1927 Ltd Perfectionnements aux pompes rotatives
GB1197958A (en) * 1967-11-21 1970-07-08 Eugen Wilhelm Huber Hot-Gas Rotary Piston Machine
DE1961134B1 (de) * 1969-12-05 1971-04-08 Kloeckner Humboldt Deutz Ag Mehrteiliger Kolben fuer innenachsige Rotationskolbenmaschine
US3813195A (en) * 1972-03-06 1974-05-28 Copeland Corp Induction system for rotary mechanism
US3876348A (en) * 1973-08-27 1975-04-08 Jr Herman L Paul Rotary engine converter
FR2262731A1 (en) * 1974-03-01 1975-09-26 Torro Roger Sliding vane motor or compressor - has vane guided by eccentric preventing direct contact between vane and casing
JPS5228164A (en) * 1975-08-06 1977-03-02 Kurita Water Ind Ltd Disposal process waste water comprising fluorine
DE2547208A1 (de) * 1975-10-22 1977-04-28 Kloeckner Humboldt Deutz Ag Arbeitsraumbildende brennkraftmaschine mit einem unterteilten viertaktarbeitsprozess
DE2604665A1 (de) * 1976-02-06 1977-08-11 Sullair Europ Corp Drehkolbenmaschine
DE2605108A1 (de) * 1976-02-10 1977-08-11 Paul Drees Schiffchengesteuerte rotationsmaschine, insbesondere rotationsbrennkraftmaschine
DE2838670A1 (de) * 1978-09-05 1980-03-13 Klaus Krismer Dampfkraftanlage
EP0012329B1 (fr) * 1978-12-04 1982-09-22 Ernst Dipl.-Ing. Kickbusch Machine rotative volumetrique pour l'alimentation d'un moteur à combustion interne
DE2905824A1 (de) * 1979-02-15 1980-11-13 Alfred 4300 Essen Scholten Kreiskolbenmotor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556302A (fr) * 1967-12-13 1969-02-07
US3905727A (en) * 1971-07-28 1975-09-16 John B Kilmer Gerotor type fluid motor, pump or the like
US3954355A (en) * 1973-08-27 1976-05-04 Paul Jr Herman L Rotary energy converter
DE2456252A1 (de) * 1974-11-28 1976-06-10 Kernforschungsanlage Juelich Kolbenmaschine zum komprimieren oder zum expandieren von gasen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217020A1 (fr) * 1985-08-31 1987-04-08 Wankel, Felix, Dr. h.c. Machine à piston rotatif à axe interne

Also Published As

Publication number Publication date
CH664193A5 (de) 1988-02-15
EP0087746A1 (fr) 1983-09-07
JPS58180701A (ja) 1983-10-22
EP0087747B1 (fr) 1986-05-21
JPS58180728A (ja) 1983-10-22
JPH0325602B2 (fr) 1991-04-08
US4540356A (en) 1985-09-10
EP0087747A3 (en) 1984-05-09
JPS58180724A (ja) 1983-10-22
DE3363572D1 (en) 1986-06-26
ATE19900T1 (de) 1986-06-15

Similar Documents

Publication Publication Date Title
DE69104495T2 (de) Radialkolbenmotor oder -pumpe.
DE3006331C2 (de) Getriebe
DE3738521C1 (de) Planetengetriebe
EP0255571B1 (fr) Disposition d'un disque de support axial, en particulier pour des satellites dans un porte-satellites
DE10217343B4 (de) Reduktionsgetriebe
DE69008901T2 (de) Getriebevorrichtung.
EP0367046B1 (fr) Machine hydrostatique à piston rotatif
DE102012222227B4 (de) Stirnraddifferentialgetriebe
EP0087747B1 (fr) Machine à piston rotatif à axe interne sans arbre à excentriques
DD141941A5 (de) Innenachsige maschine mit schraubenfoermigem profil am rotor und im stator
EP0337950B1 (fr) Moteur à piston rotatif à axe interne
DE1135706B (de) Rotationskolben-Brennkraftmaschine in Trochoidenbauart
DE1187854B (de) Kreiskolbenmaschine, insbesondere -Brennkraftmaschine in Trochoidenbauart
DE3716083A1 (de) Innenachsige drehkolbenmaschine
DE19920289C1 (de) Rotationskolbenmaschine
DE3818359C2 (fr)
DE2741165A1 (de) Servolenkeinrichtung
DE102013202092A1 (de) Differentialgetriebe
DE2062219C3 (de) Schmierung und Kühlung eines Gleitlagers einer Kreiskolben-Brennkraftmaschine in Trochoidenbauart
EP0381682B1 (fr) Compresseur cellulaire a piston rotatif
EP0088288A1 (fr) Machine à piston rotatif à axe interne
DE102013202089B4 (de) Differentialgetriebe
EP0363565A2 (fr) Moteur à combustion interne à piston rotatif
DE102020111001B4 (de) Planetengetriebe
EP0185236B1 (fr) Machine à piston rotatif

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19840524

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 19900

Country of ref document: AT

Date of ref document: 19860615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3363572

Country of ref document: DE

Date of ref document: 19860626

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910117

Year of fee payment: 9

Ref country code: DE

Payment date: 19910117

Year of fee payment: 9

Ref country code: BE

Payment date: 19910117

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910124

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910128

Year of fee payment: 9

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910228

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910417

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920113

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920223

Ref country code: AT

Effective date: 19920223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19920228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920229

Ref country code: CH

Effective date: 19920229

BERE Be: lapsed

Owner name: WANKEL FELIX

Effective date: 19920228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920901

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19931029

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83101746.2

Effective date: 19920904