Threaded sealing flange for use in an external combustion engine and method of sealing a pressure vessel
OwnerRoberto O. Pellizzari, Laurence B. Penswickinventors
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Abstract
A pressure vessel for containing a mechanical device operable to convert heat to mechanical or electrical power, comprising: a high temperature section, the high temperature section having a first end and an open second end, a sealing flange, the sealing flange having a first end and a second threaded end, the first end bonded to the open second end of the high temperature section, and a low temperature section having an open threaded first end, the open first end in sealing engagement with the second threaded end of the sealing flange. Also provided are a Stirling engine and a method of hermetically sealing a pressure vessel of a Stirling engine.
Claims8
A method of hermetically sealing a pressure vessel of a Stirling engine, the pressure vessel having a high temperature section, the high temperature section having a first end and an open second end, and a low temperature section having an open threaded first end, the method comprising the steps of:
- a) providing a sealing flange, the sealing flange having a first end and a second threaded end;
- b) bonding the first end of the sealing flange to the open second end of the high temperature section;
- c) coating an outer surface of the open threaded first end of the low temperature section uniformly with solder;
- d) coating an Inner surface of the second threaded end of the sealing flange uniformly with solder;
- and
- e) heating the second threaded end of the sealing flange until the solder coatings are uniformly melted and co-mingled, wherein upon cooling the solder layers re-solidify so as to form a leak-proof hermetic seal.
Dependencies are inferred from the claim text.