High temperature seal assembly for optical sensor
AssigneeRosemount Aerospace Inc.
InventorsDouglas C. Myhre, Joseph R. Michel
Life of this patent
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Abstract
A seal assembly for an optical sensor employed in a high temperature environment is disclosed which includes an elongated metal guide tube having a distal end portion defining an open distal end and an inner rear wall, a sapphire window disposed within the distal end portion of the metal guide tube, the sapphire window having a rear end surface abutting the inner rear wall of the distal end portion of the metal guide tube, and a platinum mounting sleeve for securing the sapphire window to the metal guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire window.
Claims16
A seal assembly for an optical sensor comprising:
- a) an elongated metal guide tube having a distal end portion defining an open distal end and an inner rear wall;
- b) a sapphire window disposed within the distal end portion of the metal guide tube, the sapphire window having a rear end surface abutting the inner rear wall of the distal end portion of the metal guide tube;
- and
- c) a platinum mounting sleeve for securing the sapphire window to the metal guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire window.
A fuel injector for a gas turbine engine comprising:
- a) a nozzle body having a leading edge surface with an optical viewing port formed therein;
- b) a metal guide tube disposed within the optical viewing port of the nozzle body, the metal guide tube having a distal end portion defining an open distal end and an inner rear wall;
- c) an elongated sapphire rod disposed within the distal end portion of the metal guide tube, the sapphire rod having a rear end surface abutting the inner rear wall of the metal guide tube and a forward end portion extending outwardly from the open distal end of the metal guide tube;
- and
- d) a platinum mounting sleeve for securing the sapphire rod to the guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire rod.
Dependencies are inferred from the claim text.