Turbine vane mate face seal assembly

• US 8,201,834 B1
• Filed: 04/26/2010
• Issued: 06/19/2012
• Est. Priority Date: 04/26/2010
• Status: Expired due to Fees

• Current Assignee: Florida Turbine Technologies, Inc. (Kratos Defense & Security Solutions Incorporated)
• Original Assignee: Florida Turbine Technologies, Inc. (Kratos Defense & Security Solutions Incorporated)
• Inventors: Liang, George
• Primary Examiner(s): Patel, Vishal
• Application Number:
  US12/766,978
• Time in Patent Office: 785 Days
• Field of Search: 277/637, 277642-644, 415/138, 415/139, 415/170.1, 415/173.5, 415/174.5
• US Class Current: 277/637
• CPC Class Codes: F01D 11/005 Sealing means between non relatively rotating elements
• CPC Class Codes: F02C 7/28 Arrangement of seals
• CPC Class Codes: F05D 2240/11 Shroud seal segments
• CPC Class Codes: F05D 2240/57 Leaf seals

Abstract

A stator vane with a mate-face cooling and sealing arrangement, the vane end rails include an upper axial seal slot and a lower axial seal slot with an upper riffle seal and a lower riffle seal secured within the two axial seal slots. The vane end rails also include a number of vertical seal slots spaced along the axial direction to receive a number of vertical riffle seals. The vertical riffle seals have an upper slot and a lower slot that allow for the two axial riffle seals to extend through and form a series of diffusion compartments along the seal assembly and mate faces.

Claims

1. A stator vane mate face cooling and sealing assembly comprising:

a first vane endwall with a first vane end rail;

a second vane endwall with a second vane end rail;

an upper slot in the first and second vane end rails;

a lower seal slot in the first and second end rails;

a first seal secured within the upper slots;

a second seal secured within the lower slots;

a plurality of vertical seals secured within a plurality of vertical slots formed within the first and second vane end rails; and

,

the plurality of vertical seals each having an upper slot and a lower slot in which the first and second seals extend through to form a series of compartments along the mate faces.

2. The stator vane mate face cooling and sealing assembly of claim 1, and further comprising:

the first seal and the second seal are both riffle seals having a smooth bottom side and a toothed top side.

3. The stator vane mate face cooling and sealing assembly of claim 1, and further comprising:

the vertical seal is a riffle seal with a smooth bottom side and a toothed top side.

4. The stator vane mate face cooling and sealing assembly of claim 1, and further comprising:

the vertical seals have a width greater than a width of the axial seals in an axial direction of the mate face gap.