STEPHEN B BERESTECKI
Engineering in South Lynnfield, MA
License number
Massachusetts 8018
Issued Date
Sep 13, 1957
Expiration Date
Jun 30, 1988
Type
Mechanical Engineer
Address
Address
South Lynnfield, MA 01940
Professional information
Apparatus For Attaching A Ceramic Member To A Metal Structure
US Patent:
4438626, Mar 27, 1984
Filed:
Sep 11, 1981
Appl. No.:
6/301172
Inventors:
Stephen B. Berestecki - Lynnfield MA
Assignee:
General Electric Company - Lynn MA
International Classification:
F02C 720
US Classification:
60 3932
Abstract:
A scroll-wound metallic cushioning bushing in a bore in a ceramic part permits pin-type connection between the ceramic part and a surrounding metal structure while cushioning against vibration and differential thermal loading which may otherwise destroy the relatively brittle ceramic material. In one embodiment, a scroll-wound cushioning bushing is employed in a trip baffle in a flameholder of an afterburner diffuser section wherein the pins holding the trip step in place are surrounded by the ceramic material and thus protected from the extreme heat found in a flameholder. In another embodiment of the invention, a large ceramic part is supported on a plurality of pins each passing through a cushioned bushing assembly which permits not only radial relative motion of pins and ceramic part, but also permits limited axial displacement and twisting.