Mechanical Mating System of Carbon-Graphite and Metallic Structures

  • minimizing tensile stresses during pressurization of the porous carbon body
  • Achieved highest known pressurization of a porous gas bearing

Abstract

The unique feature of this invention is the implementation of a mechanical interface created through subtractive machining. Through the use of a mechanical mate, the operating pressure of the housing has been increased siginificantly, and epoxy can be used simply as a sealing method and not as the primary attachement mechanism.

Advantages

This novel interface allows for a sliding mechanical mating between graphite and a metallic support structure thus minimizing tensile stresses during pressurization of the porous carbon body.

Achieved highest known pressurization of a porous gas bearing (240psi) during testing, without exhibiting significant leakage.

Potential Applications

  • Rotating equipment industry
  • Gas bearings with rotor wearing surfaces
  • Oil-free turbomachinery applications

Contact Information

Name: Shyamala Rajagopalan

Email: SRajagopalan@tamu.edu

Phone: 979-862-3002