DE708246C - Overpressure seal for exhaust gas turbines - Google Patents

Overpressure seal for exhaust gas turbines

Info

Publication number
DE708246C
DE708246C DEB173509D DEB0173509D DE708246C DE 708246 C DE708246 C DE 708246C DE B173509 D DEB173509 D DE B173509D DE B0173509 D DEB0173509 D DE B0173509D DE 708246 C DE708246 C DE 708246C
Authority
DE
Germany
Prior art keywords
exhaust gas
gas turbines
fan shaft
seal
overpressure
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
DEB173509D
Other languages
German (de)
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DEB173509D priority Critical patent/DE708246C/en
Application granted granted Critical
Publication of DE708246C publication Critical patent/DE708246C/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
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

Überdruckabdichtung für Abgasturbinen Gegenstand der Erfindung ist eine Abdichtung zwischen Leitgehäuse, in welches zu beiden Seiten eines Ringkanals Bleche eingesetzt sind, und Läufer bei Abgasturbinen mit ,hohler Gebläsewelle, die verhindern soll, daß an dieser Stelle heiße Abgase in den Frischluftkanal eindringen können. Dies soll gemäß der Erfindung auf einfache Art dadurch erreicht werden, daß der von den Blechen eingeschlossene Ringraum durch Bohrungen im Läuferkörper mit dem Hohlraum der Gebläsewelle-verbunden ist. Die Luft in der hohlen Gebläsewelle wird auf diese Weise beim Umlaufen durch die Fliehkraft unter Überdruck nach außen geschleudert und unter Mitwirkung des außen vorbeistreichenden Kühlluftstromes .durch die engen Spalten an den Abdichtungsblechen nach beiden Seiten hinausgedrückt und so sicher verhindert, daß aus dein Leitgehäuse heiße Abgase zwischen diesem und dem Läufer in den Kühlluftstrom eintreten können.Overpressure seal for exhaust gas turbines is the subject of the invention a seal between the guide housing, in which on both sides of an annular channel Sheets are used, and runners in exhaust gas turbines with, hollow fan shaft, the is intended to prevent hot exhaust gases from entering the fresh air duct at this point can. According to the invention, this is to be achieved in a simple manner by that the annular space enclosed by the metal sheets through holes in the rotor body is connected to the cavity of the fan shaft. The air in the hollow fan shaft is in this way when rotating by the centrifugal force under overpressure to the outside thrown and with the help of the cooling air flow sweeping past the narrow gaps on the sealing plates pushed out on both sides and so safely prevents hot exhaust gases from your guide housing between this and the rotor can enter the cooling air flow.

In der Zeichnung ist ein Ausführungsbeispiel schaubildlich dargestellt, und zwar zeig, Abb. i einen Schnitt und Abb. 2 die Abdichtung ebenfalls im Schnitt in mehrfacher Vergrößerung .gegenüber Abb. i. Mit a ist die hohle Gebläsewelle und mit b sind die radialen Bohrungen des Läufers c bezeichnet. Die in das Leitgehäuse d eingesetzten Bleche sind mit e und der Ringraum ist mit f bezeichnet.In the drawing, an exemplary embodiment is shown diagrammatically, namely, Fig. 1 shows a section and Fig. 2 shows the seal, also in section, in a multiple magnification. Compared to Fig. I. The hollow fan shaft is denoted by a and the radial bores of the rotor c are denoted by b. The metal sheets inserted into the guide housing d are denoted by e and the annular space is denoted by f.

Claims (1)

PATENTANSPRUCH: Überdruckabdichtung für Abgasturbinen mit hohler Gebläsewelle, bei der im Leitgehäuse zu beiden Seiten eines Ringkanals eine Anzahl Bleche eingesetzt sind, dadurch gekennzeichnet, daß dieser Ringkanal (f) durch Bohrungen (b) im Läuferkörper (c) mit dein Hohlraum der Gebläsewelle (a) in Verbindung steht, wodurch die in der Bohrung der Gebläsewelle (a) vorhandene Luft unter Schleuderwirkung in den Ringkanal (f) gedrückt wird.PATENT CLAIM: Overpressure seal for exhaust gas turbines with hollow fan shaft, in which a number of metal sheets are used in the guide housing on both sides of an annular channel are, characterized in that this annular channel (f) through holes (b) in the rotor body (c) with the cavity of the fan shaft (a) in communication, whereby the in the Bore of the fan shaft (a) existing air under centrifugal effect into the ring channel (f) is pressed.
DEB173509D 1936-03-25 1936-03-25 Overpressure seal for exhaust gas turbines Expired DE708246C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB173509D DE708246C (en) 1936-03-25 1936-03-25 Overpressure seal for exhaust gas turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB173509D DE708246C (en) 1936-03-25 1936-03-25 Overpressure seal for exhaust gas turbines

Publications (1)

Publication Number Publication Date
DE708246C true DE708246C (en) 1941-12-05

Family

ID=7007279

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB173509D Expired DE708246C (en) 1936-03-25 1936-03-25 Overpressure seal for exhaust gas turbines

Country Status (1)

Country Link
DE (1) DE708246C (en)

Similar Documents

Publication Publication Date Title
DE1300347B (en) Labyrinth seal for the rotor blade ring of a gas turbine
DE2356721B2 (en) Cooling device for hollow rotor blades of an axially flowed turbine
DE2507182A1 (en) AXIAL GAS TURBINE SYSTEM
DE1210626B (en) Storage of a gas turbine engine
DE3507578A1 (en) TURBINE BLADE WITHOUT TAPE
DE1601664B2 (en) ARRANGEMENT OF THROUGH CHANNELS FOR COOLING GASES IN A HOLLOW CYLINDER-SHAPED RUNNER OF A FLOW MACHINE
DE708246C (en) Overpressure seal for exhaust gas turbines
DE2248907C3 (en) Protective device on machines with a housing surrounding a rotor
DE731085C (en) Circulation pump without liquid ring for gases with cooled impeller
DE947402C (en) Process for cooling a dynamo machine and its associated control and regulating apparatus
DE872687C (en) Device for avoiding loss of lubricant in high-speed flow machines with the help of sealing air
DE611681C (en) Labyrinth-like gap seal between the encapsulation of electrical machines or devices, in which sparks can be generated during operation, and the shaft leading out of this capsule
DE433898C (en) Labyrinth sealing sleeve
DE964190C (en) A machine group consisting of a turbine and a work machine driven by it
DE1815229A1 (en) Blow-off device for a turbo machine
DE69500237T2 (en) Air-cooled gas turbine blade
DE445709C (en) Device to prevent oil leakage from bearing bearings
DE967202C (en) Gas turbine
DE1011975B (en) Fan arrangement for electrical machines
DE1231798B (en) Direct air-cooled slip ring for an electrical machine, especially a turbo generator
DE682840C (en) Internal combustion engine with working chambers arranged in the impeller and combustion chambers connected upstream of the impeller in a follower
DE684448C (en) Oil firing for steam generators with surrounding heating surfaces
DE504502C (en) Runner for back pressure steam or gas turbines
DE654664C (en) Jacket-cooled, closed electrical machine
DE434966C (en) Movie theater with air-cooled transformer