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Title: Mechanical coupling for a rotor shaft assembly of dissimilar materials

Abstract

A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. Glastonbury, CT
  2. New Hartford, CT
  3. Broad Brook, CT
  4. Rocky Hill, CT
  5. South Windsor, CT
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988163
Patent Number(s):
7,527,479
Application Number:
11/221,440
Assignee:
Hamilton Sundstrand Corporation (Rockford, IL) NETL
DOE Contract Number:  
FC26-00CH11060
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Shi, Jun, Bombara, David, Green, Kevin E, Bird, Connic, and Holowczak, John. Mechanical coupling for a rotor shaft assembly of dissimilar materials. United States: N. p., 2009. Web.
Shi, Jun, Bombara, David, Green, Kevin E, Bird, Connic, & Holowczak, John. Mechanical coupling for a rotor shaft assembly of dissimilar materials. United States.
Shi, Jun, Bombara, David, Green, Kevin E, Bird, Connic, and Holowczak, John. Tue . "Mechanical coupling for a rotor shaft assembly of dissimilar materials". United States. https://www.osti.gov/servlets/purl/988163.
@article{osti_988163,
title = {Mechanical coupling for a rotor shaft assembly of dissimilar materials},
author = {Shi, Jun and Bombara, David and Green, Kevin E and Bird, Connic and Holowczak, John},
abstractNote = {A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 05 00:00:00 EDT 2009},
month = {Tue May 05 00:00:00 EDT 2009}
}

Patent:

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