Washer for combustor assembly

Patent metadata

Field	Value
Publication number	US-10690346-B2
Application number	US-201715476431-A
Country	US
Kind code	B2
Filing date	Mar 31, 2017
Priority date	Mar 31, 2017
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A combustor for a gas turbine engine includes a combustor shell having a shell opening therethrough, a combustor panel having a stud attached thereto, the stud extending through the shell opening. The stud includes a standoff to define an intermediate passage between the combustor shell and the combustor panel. A retainer is attached to the stud. A washer surrounds the stud and is positioned between the retainer and the combustor shell. The washer at least partially defines a cooling flow passage configured to direct a cooling airflow through the shell opening to impinge the cooling flow on at least one of the stud or the standoff.

First claim

What is claimed is:

1. A combustor for a gas turbine engine, comprising:
a combustor shell having a shell opening therethrough;
a combustor panel having a stud attached thereto, the stud extending through the shell opening, the stud including a standoff to define an intermediate passage between the combustor shell and the combustor panel;
a retainer attached to the stud; and
a washer surrounding the stud and positioned between the retainer and the combustor shell, the washer at least partially defining a cooling flow passage configured to direct a cooling airflow through the shell opening to impinge the cooling flow on at least one of the stud or the standoff;
wherein the washer includes a plurality of washer arms extending radially inwardly from a circular outer perimeter of the washer, the cooling flow passage defined between adjacent washer arms of the plurality of washer arms.

2. The combustor of claim 1 , wherein each washer arm includes a web portion and a relatively circumferentially wide end portion located radially inboard of the web portion.

3. The combustor of claim 1 wherein adjacent washer arms do not contact each other.

4. A washer for a combustor of a gas turbine engine comprising:
a first washer surface;
a second washer surface opposite the first washer surface;
a circular outer perimeter surface extending between the first washer surface and the second washer surface;
a plurality of washer arms extending radially inwardly from the outer perimeter surface of the washer; and
a cooling flow passage to direct a cooling airflow therethrough, the cooling flow passage defined between adjacent washer arms of the plurality of washer arms.

5. A gas turbine engine, comprising:
a turbine section; and
a combustor configured to combust fuel and direct combustion products to the turbine section, the combustor including:
a combustor shell having a shell opening therethrough;
a combustor panel having a stud attached thereto, the stud extending through the shell opening, the stud including a standoff to define an intermediate passage between the combustor shell and the combustor panel;
a retainer attached to the stud; and
a washer surrounding the stud and positioned between the retainer and the combustor shell, the washer at least partially defining a cooling flow passage configured to direct a cooling airflow through the shell opening to impinge the cooling flow on at least one of the stud or the standoff;
wherein the washer includes a plurality of washer arms extending radially inwardly from a circular outer perimeter of the washer, the cooling flow passage defined between adjacent washer arms of the plurality of washer arms.

Assignees

• United Technologies Corp
• Raytheon Tech Corp

Inventors

• Propheter-Hinckley Tracy A
• Zelesky Mark F
• Kohli Atul
• Davis Dustin W
• Trindade Ricardo
• Gautschi Steven Bruce
• Spangler Brandon W
• Rudy Trevor
• Bellows Benjamin
• Hyland Dave J
• Hoke James B
• Kramer Stephen K
• Moura Dennis M

Classifications

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title

• F16B43/00

  Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) · CPC title

• F23R3/06

  Arrangement of apertures along the flame tube · CPC title

• F23R3/60

  Support structures; Attaching or mounting means · CPC title

• F23R3/002 Primary

  Wall structures (F23R3/02 and F23R3/007 take precedence) · CPC title