DE3821889C1 - Rotary engine - Google Patents

Rotary engine

Info

Publication number
DE3821889C1
DE3821889C1 DE19883821889 DE3821889A DE3821889C1 DE 3821889 C1 DE3821889 C1 DE 3821889C1 DE 19883821889 DE19883821889 DE 19883821889 DE 3821889 A DE3821889 A DE 3821889A DE 3821889 C1 DE3821889 C1 DE 3821889C1
Authority
DE
Germany
Prior art keywords
screwed
cavities
external rotor
central part
rotary engine
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
DE19883821889
Other languages
German (de)
Inventor
Klaus Dipl.-Ing. Dr. Heikrodt
Herbert Dipl.-Ing. 4150 Krefeld De Schneider
Werner Dipl.-Ing. 4052 Korschenbroich De Seifert
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE19883821889 priority Critical patent/DE3821889C1/en
Application granted granted Critical
Publication of DE3821889C1 publication Critical patent/DE3821889C1/en
Expired 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

In engines of this type the external rotor is assembled from parts and bolted together in order to be able to insert the inner rotor. In so doing, the problem of excess agglomerations of material arises, resulting in possible deformations caused by centrifugal force when operating at high speeds, which can lead to destruction of the engine. The new rotary engine with inner and external rotor has the characteristic feature that the bolts (8) provided for bolting are screwed into threaded plugs (9), which in turn are screwed into cavities (10) of the middle section (6), at the same time sealing the hollow cavities. <IMAGE>

Description

Die Erfindung betrifft eine Drehkolbenmaschine nach dem Oberbegriff des Patentanspruchs.The invention relates to a rotary piston machine according to the preamble of Claim.

Bei derartigen Maschinen wird der Außenläufer aus Teilen zusammengebaut und verschraubt (EP 02 18 015 A1), um den Innenläufer einsetzen zu können.In such machines, the external rotor is assembled from parts and screwed (EP 02 18 015 A1) to be able to use the inner rotor.

Hierbei tritt das Problem übermäßiger Werkstoffanhäufungen da auf, wo die Gewindebohrungen für die Schrauben in Vollmaterial gesetzt werden. Hier­ durch sind durch Fliehkraft verursachte Verformungen bei Betrieb mit hohen Drehzahlen möglich, die zu einer Zerstörung der Maschine führen können.Here the problem of excessive material accumulation occurs where the Threaded holes for the screws are made of solid material. Here are deformations caused by centrifugal force when operating at high Speeds possible that can destroy the machine.

Aufgabe der Erfindung ist es daher, eine gattungsbildende Drehkolbenmaschine so zu gestalten, daß eine optimierte Außenläuferform mit Erleichterungs­ hohlräumen auch dort möglich wird, wo die Gewindebohrungen für die Schrau­ ben vorgesehen sein müssen.The object of the invention is therefore a generic rotary engine to be designed so that an optimized external rotor shape with relief cavities is also possible where the threaded holes for the screw ben must be provided.

Diese Aufgabe ist durch die im Kennzeichen des Patentanspruchs angegebenen Merkmale gelöst.This object is by the specified in the characterizing part of the claim Features solved.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.An embodiment of the invention is shown in the drawing and is described below.

Die Zeichnung zeigt einen Teilabschnitt einer erfindungsgemäßen Drehkolben­ maschine 1, bestehend aus einem Gehäuse 2 mit Deckel 3, einem Innenläufer 4 und einem Außenläufer 5, die über ein nicht dargestelltes Zahnradpaar ge­ koppelt sind.The drawing shows a portion of a rotary lobe machine 1 according to the invention, consisting of a housing 2 with a cover 3 , an inner rotor 4 and an outer rotor 5 , which are coupled via a pair of gears, not shown.

Der Außenläufer 5 ist aus einem Mittelteil 6 und zwei Seitenteilen 7 ge­ bildet und verschraubt, wobei die Schrauben 8 in Gewindestopfen 9 einge­ schraubt sind, die wiederum in Hohlräume 10 des Mittelteils 6 eingeschraubt und durch Kleber gesichert sind.The external rotor 5 is formed and screwed from a central part 6 and two side parts 7 , the screws 8 being screwed into threaded plugs 9 , which in turn are screwed into cavities 10 of the central part 6 and secured by adhesive.

Diese Gewindestopfen 9 ermöglichen es, den Außenläufer 5 dünnwandig und doch formstabil auszuführen, da keine Rücksicht auf die Anordnung von Gewinde­ bohrungen direkt in den Werkstoff des Mittelteils 6 genommen werden muß.These threaded plugs 9 make it possible to run the outer rotor 5 thin-walled and yet dimensionally stable, since no consideration must be given to the arrangement of threaded holes directly in the material of the middle part 6 .

Claims (1)

Drehkolbenmaschine mit Innen- und Außenläufer, die in einem Gehäuse gelagert und durch ein Zahnradpaar gekoppelt sind, wobei der aus einem Mittelteil und zwei Seitenteilen gebildete Außenläufer verschraubt ist und in dem Mittelteil Hohlräume für die Gewichtserleichterung aufweist, dadurch gekennzeichnet, daß die für die Verschraubung vorgesehenen Schrau­ ben (8) in Gewindestopfen (9) eingeschraubt sind, die wiederum in die Hohl­ räume (10) des Mittelteils (6) eingeschraubt sind und die wenigstens im Ein­ schraubabschnitt kreiszylindrisch ausgebildeten Hohlräume dabei ver­ schließen.Rotary piston machine with internal and external rotors, which are mounted in a housing and are coupled by a pair of gears, the external rotor formed from a central part and two side parts being screwed together and having cavities in the central part for lightening the weight, characterized in that those provided for the screw connection Screw ben ( 8 ) are screwed into threaded plugs ( 9 ), which in turn are screwed into the cavities ( 10 ) of the central part ( 6 ) and which at least in the screw-in section have circular cylindrical cavities.
DE19883821889 1988-06-29 1988-06-29 Rotary engine Expired DE3821889C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883821889 DE3821889C1 (en) 1988-06-29 1988-06-29 Rotary engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883821889 DE3821889C1 (en) 1988-06-29 1988-06-29 Rotary engine

Publications (1)

Publication Number Publication Date
DE3821889C1 true DE3821889C1 (en) 1989-08-17

Family

ID=6357495

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883821889 Expired DE3821889C1 (en) 1988-06-29 1988-06-29 Rotary engine

Country Status (1)

Country Link
DE (1) DE3821889C1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218015A1 (en) * 1985-09-20 1987-04-15 Wankel, Felix, Dr. h.c. Production method of an internal-axis rotary piston machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218015A1 (en) * 1985-09-20 1987-04-15 Wankel, Felix, Dr. h.c. Production method of an internal-axis rotary piston machine

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee