A balanced-pressure sliding seal used for transfer of pressurized air between stationary and rotating parts

One of 5,164 reports in the series: NACA Research Memorandums available on this site.

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Description

A combination sliding-ring and pressure-balancing seal capable of transferring pressurize air from stationary to rotating parts was developed and experimentally investigated at sliding velocities and cooling-air pressures up to 10,000 feet per minute and 38.3 pounds per square inch absolute, respectively. Leakage of cooling air was completely eliminated with an expenditure of balance air less than one-fourth the leakage loss of air from labyrinth seals under the same conditions. Additional cooling of the carbon-base seal rings was required, and the maximum wear rate on the rings was about 0.0005 inch per hour.

Physical Description

17 p. : ill.

Creation Information

Curren, Arthur N. & Cochran, Reeves P. January 9, 1957.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 30 times , with 6 in the last month . More information about this report can be viewed below.

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  • Main Title: A balanced-pressure sliding seal used for transfer of pressurized air between stationary and rotating parts
  • Series Title: NACA Research Memorandums

Description

A combination sliding-ring and pressure-balancing seal capable of transferring pressurize air from stationary to rotating parts was developed and experimentally investigated at sliding velocities and cooling-air pressures up to 10,000 feet per minute and 38.3 pounds per square inch absolute, respectively. Leakage of cooling air was completely eliminated with an expenditure of balance air less than one-fourth the leakage loss of air from labyrinth seals under the same conditions. Additional cooling of the carbon-base seal rings was required, and the maximum wear rate on the rings was about 0.0005 inch per hour.

Physical Description

17 p. : ill.

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  • Accession or Local Control No: 93R18805
  • URL: http://hdl.handle.net/2060/19930089515 External Link
  • Report No.: NACA-RM-E56I11
  • Center for AeroSpace Information Number: 19930089515
  • Archival Resource Key: ark:/67531/metadc62982

Collections

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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This selection of materials from the Technical Report Archive and Image Library (TRAIL) includes hard-to-find reports published by various government agencies. The technical publications contain reports, images, and technical descriptions of research performed for U.S. government agencies. Topics range from mining, desalination, and radiation to broader physics, biology, and chemistry studies. Some reports include maps, foldouts, blueprints, and other oversize materials.

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Creation Date

  • January 9, 1957

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

Description Last Updated

  • April 9, 2018, 12:19 p.m.

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Curren, Arthur N. & Cochran, Reeves P. A balanced-pressure sliding seal used for transfer of pressurized air between stationary and rotating parts, report, January 9, 1957; (digital.library.unt.edu/ark:/67531/metadc62982/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.