Turbine plant having a thrust element, and thrust element

Patent 6092986 Issued on July 25, 2000. Estimated Expiration Date:

January 25, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3771489

Turboset with at least one low-pressure turbine stage having an outer housing and an inner housing coaxial thereto, and with high-pressure and/or medium-pressure turbine stage
Patent #: 4744726
Issued on: 05/17/1988
Inventor: Remberg

Multi-cylinder steam turbine set
Patent #: 5051061
Issued on: 09/24/1991
Inventor: Meylan

Method and a device in a rotating machine Patent #: 5330320
Issued on: 07/19/1994
Inventor: Mansson

Inventors

Assignee

Siemens Aktiengesellschaft

Application

No. 237173 filed on 01/25/1999

US Classes:

415/134, INCLUDING THERMAL EXPANSION JOINT415/104, WITH SHAFT CONNECTED FLUID FORCE SUBJECTED THRUST BALANCING SURFACE415/135, Resilient415/213.1, Casing with mounting means415/214.1Casing having multiple parts releasably clamped (e.g., casing seal, etc.)

Examiners

Primary: Look, Edward K.
Assistant: Woo, Richard

Attorney, Agent or Firm

Lerner; Herbert L., Greenberg; Laurence A., Stemer; Werner H.

Foreign Patent References

0 374 645 A1 EP. 06/12/1990
1 216 322 DE. 05/12/1966
35 22 916 A1 DE. 01/12/1987
1 145 612 GB. 03/12/1969

International Class

F01D 025/24

Foreign Application Priority Data

1996-07-24 DE

Abstract

A turbine plant, in particular a steam-turbine plant, includes at least two turbine sections, each having a turbine rotor extending along a main axis and an inner casing accommodating guide blades. At least one inner casing is displaceable in axial direction and a thermally expanding thrust element is provided for an axial displacement. The trust element has first and second expansion components connected to one another by a coupling component. The coupling component mechanically and/or hydraulically produces an axial displacement of the second expansion component which is greater than a thermal expansion and/or axial displacement of the first expansion component. A thrust element for reducing different axial expansions between two components expandable independently of one another along a main axis, is also provided.