High-Temperature Polyimide Hydraulic Actuator Rod Seals for Advanced Aircraft Lewis Research Center, NASA

Format:

Conference/Event

Author/Creator:

Loomis, William R., author.

Conference Name:

National Aeronautic and Space Engineering and Manufacturing Meeting (1970-10-05 : Los Angeles, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1970

Summary:

This paper summarizes the results and findings of a program to design, develop, and evaluate actuator rod seals for use in advanced aircraft high-temperature hydraulic systems. The rod seals are intended to function efficiently and reliably for 3000 hr in the temperature range of -40-500 F. Preliminary studies of various material and design combinations showed that a polyimide low-pressure second-stage V-seal in a two-stage configuration had the greatest potential in long-term duty cycle testing in a simulated actuator test system. Modifications of this seal that provided for improved fatigue life and more efficient loading met the test objectives of 20 X 106 short-stroke cycles of operation at 500 F. Severity of this testing was equivalent to 3000 hr of duty cycle operation. The validity of design techniques used to achieve performance goals was shown

Notes:

Vendor supplied data

Publisher Number:

700790

Access Restriction:

Restricted for use by site license