Patents by Inventor Yevgeuiy Shteyman

Yevgeuiy Shteyman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ceramic matrix composite structure having integral cooling passages and method of manufacture
    Patent number: 6746755
    Abstract: A multi-layer ceramic matrix composite structure (40) having a plurality of fiber-reinforced cooling passages (42) formed therein. The cooling passages are formed by the removal of a fugitive material (24). The fugitive material is part of a wrapped fugitive material structure (28) containing a layer of reinforcing ceramic fibers (26) that is used to lay-up the multi-layer structure. An intermediate layer of ceramic fabric 56 may be placed alternately over and under the wrapped fugitive material structure to separate the cooling passages into alternating upper (54) and lower (52) cooling passages. The transversely oriented fibers surrounding the cooling passages serve to increase the interlaminar strength of the structure when compared to prior art designs. An airfoil member (112) incorporating such reinforced integral cooling passages (120) is provided.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: June 8, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Jay Morrison, Steven C. Butner, Christian X. Campbell, Harry A. Albrecht, Yevgeuiy Shteyman
  • Ceramic matrix composite structure having integral cooling passages and method of manufacture
    Publication number: 20030059577
    Abstract: A multi-layer ceramic matrix composite structure (40) having a plurality of fiber-reinforced cooling passages (42) formed therein. The cooling passages are formed by the removal of a fugitive material (24). The fugitive material is part of a wrapped fugitive material structure (28) containing a layer of reinforcing ceramic fibers (26) that is used to lay-up the multi-layer structure. An intermediate layer of ceramic fabric 56 may be placed alternately over and under the wrapped fugitive material structure to separate the cooling passages into alternating upper (54) and lower (52) cooling passages. The transversely oriented fibers surrounding the cooling passages serve to increase the interlaminar strength of the structure when compared to prior art designs. An airfoil member (112) incorporating such reinforced integral cooling passages (120) is provided.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 27, 2003
    Applicant: Siemens Westinghouse Power Corporation
    Inventors: Jay Morrison, Steven C. Butner, Christian X. Campbell, Harry A. Albrecht, Yevgeuiy Shteyman