Title: Heat transfer interface between a high temperature heat source and a heat sink

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Claims: We claim:

1. A Stirling engine comprising a heat source, working gas for the engine, a heater part in which working gas for the engine is heated, and a heat transfer interface, wherein

the interface comprises a pair of adjacent and closely spaced walls formed as generally adjacent flanged peripheries, metallic means for sealing said flanged peripheries together while defining a gap in the range of 0.002 to 0.009 inches between said hemispheric walls, a quantity of gas sealed within said gap, and means for releasably securing together said flanged peripheries to seal said gap while maintaining said spacing between said walls, and

the inner one of said concentric walls is a boundary wall of said heat source, and the other of said walls is a boundary wall of said heater part.

2. A Stirling engine as claimed in claim 1 wherein said heater part is a heat pipe, and said other of said walls is a heat-receiving wall of the heat pipe.

3. A Stirling engine as claimed in claim 2 wherein said quantity of gas is a quantity of helium.

4. A heat transfer device comprising a heat source, a heater part to which heat is to be transferred, and an interface, wherein

the interface comprises a pair of adjacent and closely spaced walls formed as generally adjacent concentric hemispheres having adjacent peripheries which are sealable together while defining a gap between said adjacent walls, a quantity of gas sealed within said gap, and means for releasably securing together said peripheries to seal said gap while maintaining said gap in the range of 0.002 to 0.009, and

one of said walls is a boundary wall of said heat source, and the other of said walls is a boundary wall of said heater part.

5. A heat transfer device comprising a heat source, a heater part to which heat is to be transferred, and an interface, wherein

the interface comprises a pair of adjacent and closely spaced walls formed as generally adjacent concentric hemispheres having adjacent flanged peripheries, metallic means for sealing said flanged peripheries together while defining a gap between said hemispheric walls, a quantity of gas sealed within said gap, and means for releasably securing together said flanged peripheries to seal said gap while maintaining said close spacing between said walls, and

one of said walls is a boundary wall of said heat source, and the other of said walls is a boundary wall of said heater part.

6. A heat transfer interface as claimed in claim 5 wherein said quantity of gas consists of a gas having a relatively high heat conduction coefficient, and a low diffusion through metal coefficient.

7. A heat transfer interface operable between a heat source and a heat sink, comprising a pair of adjacent walls defining between them a space, means for releasably sealing the adjacent peripheries of said walls to close said space, means for introducing a gas into said space, said gap having a width from 0.002 to 0.009 inches.

Other info:

Inventors: du Pre, Frits K. (Ossining, NY, US)
Jaspers, Hendrik A. (Ossining, NY, US)

Application Number: 490725
Filing Date: 1974-07-22
Publication_date: 1977-10-11
Assignee: North American Philips Corporation (New York, NY)
Primary Class(es): 60/524 165/51, 165/104.14, 165/104.26, 165/185
Other Classes:
US Patent Ref:

2431153	Nov, 1947	White	165/105.
3270802	Sep, 1966	Lindberg	165/96.
3403075	Sep, 1968	Fiebelmann	165/105.
3613773	Oct, 1971	Hall	165/105.
3702533	Nov, 1972	Dirae et al.	60/524.
3823305	Jul, 1974	Schroder	165/96.

Other Refs:
Primary Examiner: Ostrager, Allen M.
Assistant Examiner:
Attorney: Treacy; David R., Trifari; Frank R.