DE2301163A1 - REVERSIBLE TURBINE - Google Patents

Description

PATENTANWÄLTE DipL-Ing. WERNER COHAUSZ · Dipl-lng. WILHELM FLORACK · D! _P l.-lng. RUDOLF KNAUF

A Düsseldorf, Sdiumannstrasse 97 2 OU 1 IU

Lucas Aerospace Limited

Well Street

GB-Birmingham January 10th 1973

Reversible turbine
i) The invention relates to a reversible turbine.

According to the invention, a turbine is characterized by a housing, a medium inlet into the housing, a rotor in the housing, a first and a second vane arrangement between the rotor and the inlet, with medium in operation through the first or second lamella arrangement flows and the runner hits so be that he each rotating in opposite directions, and a valve assembly between the lamellar assemblies and the inlet rotating in opposite directions Is movable directions from a central position in which a medium flow to the rotor is substantially prevented, wherein a movement of the valve arrangement in the first or second direction towards the middle position a flow of medium through the first or second direction second lamella arrangement allows.

The invention is shown below on the basis of an exemplary embodiment Reference atf "explains the drawings in more detail. In the drawings are χ

Pig. 1 a section through a turbine,
FIG. 2 shows a section on the line 2-2 in FIG. 1 and FIG. 3 shows a developed view of the part of the turbine between the arrows 3-3 in FIG. 1.

The turbine has a housing 10 with a gas inlet 11. In the housing 10, a shaft 12 is mounted, which carries a rotor 13 to its

27 012

Wa / Ti - 2 -

309829/0483

Peripheral an arrangement of S-axial flow turbine blades 14 is provided is. Located on the high pressure side of the rotor or rotor 13 ″ a first guide lamella arrangement 15 »which is around a Part of the wing or Blade periphery of the rotor 13 extends. Channels 16 extended from the high pressure side of the arrangement 15, 1Jt which end in openings 18, 19 and openings 20, 21, respectively.

Furthermore, there is a second on the high pressure side of the rotor 13 vanes assembly 22 extending around a portion of the remainder of the blade periphery of the rotor. The arrangement 22 stands with an opening 24 via a channel 23 in connection. The openings 18, 19 »20, 21, 24 are molded into a single fixed plate 25, which lies in a plane perpendicular to the axis of the rotor 13.

The slats of assemblies 15, 22 are in opposite directions inclined so that a gas flowing through the assembly 15 rotates the rotor in sighting opposite to that of originates from a gas flow through the assembly 22. The extent and thus the flow cross-sectional area of the arrangement 15 is essential greater than that of arrangement 22.

Another plate 26 is in close contact with the plate 25 by a elastic bellows 27 prestressed. The plate. 26 is sealed in the housing 10 rotatable by a pinion 28 driven by an electric motor 29 is and meshes with teeth 30 on the plate 26. The plate 26 has four equally spaced openings 31 »32, 33» 34 provided. The plate 26 has a central position, which is shown in the drawings is shown and in which all openings in the plate 25 are closed are so that no gas can flow to the turbine 13 with it. A rotation of the plate 26 in the direction to the right according to FIG. 2 leads to a progressive exposure of the openings 18, 19 »20, 21 · to a To allow driving of the rotor 13 in sighting forward. One twist of the plate 26 when viewed to the left from the central position progressively only leads to an exposure of the opening 24 'around the runner 13 ia sighting backwards.

309829/0483

The "turbine described is" particularly for use in conjunction with a hoist or a "V / inde" suitable for the force mainly required to lift a load and the gas flow for this purpose, the one direction of rotation of the rotor 1J after corresponds to the front, can be brought to a significantly higher value due to the different extension of the lamella arrangements 15 »22 are called the gas flow for the reverse rotation.

3ε is understood that for other applications of the invention Turbine the extensions of the respective lamella arrangements and the arrangement of the associated openings in the plates 25 »26 changed can be used to meet the force requirements when moving forward and To match running backwards.

Claims

309829/0483

Claims (1)

Claims Turbine, characterized by a housing, a medium inlet into the housing, a rotor in the housing, a first and a second guide vane arrangement between the rotor and the inlet, with medium flowing through the first or second lamella arrangement during operation and applied to the runner so that it was in opposite directions rotates, and a valve assembly between the lamellae assemblies and the inlet, which in opposite directions from a Middle position is movable, in which a medium flow to the runner is prevented substantially, with a movement of the valve arrangement a flow in the first or second direction out of the central position ■ made possible by the medium through the first or second lamella arrangement. 2.! Turbine according to claim 1, characterized in that the valve arrangement a plate having a plurality of apertures in communication with the first and second lamellar assemblies, respectively, wherein a closing member of the plate is movable in relation to it, in such a way that the openings .selectively are opened. 5.! Turbine according to claim 2, characterized in that the closing member is a second plate which lies close to the first plate and is rotatable relative to it about an axis perpendicular to the plane of the second plate stands. 4 · Turbine according to one of claims 1 to 5 »characterized in that that the flow cross-sectional area of the first vane arrangement is greater than that of the second guide lamella arrangement. 5. Turbine according to claim 3, characterized in that drive means are provided for rotating the second plate. 6. Turbine according to claim 5 »characterized in that the drive means are an electric motor. Wa / Ti. 309829/0483