Ceramic heat exchanger
An all ceramic heat exchanger assembly is described comprising: (A) a ceramic wall defining an outer wall face and an inner wall face, (B) a constant diameter threaded bore formed in the outer wall face and extending part way through the wall; (C) a constant diameter smooth walled bore of smaller diameter that the threaded bore formed in the inner wall face in coaxial relation to the threaded bore and extending part way through the wall to a location adjacent an inboard end of the threaded bore; (D) an annular transverse shoulder extending between adjacent inboard ends of the threaded and smooth walled bores; (E) an annular resilient gasket, having an outer diameter greater than the diameter of the smooth walled bore and an inner diameter less that the diameter of the smooth walled bore, positioned within the wall with one annular face thereof sealed against the shoulder; and (F) an annular ceramic insert having an axial length substantially corresponding to the axial length of the threaded bore, a constant diameter threaded outer periphery, and a bell shaped inner periphery.
- Assignee:
- NOV; NOV-87-041342; EDB-87-039890
- Patent Number(s):
- US 4632181
- OSTI ID:
- 7121520
- Country of Publication:
- United States
- Language:
- English
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