US4224980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally stressed heat-conducting structural part or corresponding structure part cross section
Assignee: Daimler Benz AG
•
Filing: 1978-02-08
•
Granted: 1980-09-30
•
Expires: 1998-02-08
Abstract
Abstract A thermally stressed heat-conducting structural part with a temperature gradient that forms during operation, in which at least one layer of metal hydride is embedded in a hydrogen-impervious and heat-conducting manner transversely to the temperature gradient.
Inventors
- 👤 Helmut Buchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
F; F02; F02B; F02B23/00; F02B19/00; F02B19/10; F02B19/1004; F02B19/16; F24; F24V; F24V30/00; F02B2019/006; F02B2019/008; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
A thermally stressed heat-conducting structural part in which a temperature gradient forms when the heat conducting structural part is heated, the structural part including a pair of spaced walls, means for joining the spaced walls together so as to form a gas tight interstice between the pair of walls, characterized in that the walls are formed of a hydrogen-diffusion-impervious material, the interstice is completely filled with a metal hydride so that the pair of walls and metal hydride are connected in a heat-conducting manner, and in that the metal hydride completely filling the interstice is disposed substantially transversely to the temperature gradient.
Claim 2
Dependent Claim
102 words
A thermally stressed heat-conducting structural part in which a temperature gradient forms when the heat conducting structural part is heated, the structural part including a pair of spaced walls, means for joining the spaced walls together so as to form a gas tight interstice between the pair of walls, characterized in that the walls are formed of a hydrogen-diffusion-impervious material, the interstice is completely filled with a metal hydride so that the pair of walls and metal hydride are connected in a heat-conducting manner, and in that the metal hydride completely filling the interstice is disposed substantially transversely to the temperature gradient.
Claim 3
Dependent Claim
21 words
A structural part according to claim 1, characterized in that the metal hydride filling the interstice is a porous metal hydride.
Claim 4
Dependent Claim
23 words
A structural part according to claim 2, characterized in that the metal hydride fills the interstice in an essentially gap-free or crack-free manner.
Claim 5
Dependent Claim
22 words
A structural part according to claim 3, characterized in that the metal hydride filling the interstice consists of sintered-together metal hydride granules.
Claim 6
Dependent Claim
29 words
A structural part according to claim 4, characterized in that the pore volume amounts to about 5 to 10% of the volume of the metal hydride filling the interstice.
Claim 7
Dependent Claim
57 words
A structural part whose temperature is changeable between an operating temperature and a rest temperature during non-operation according to claim 5, characterized in that the metal hydride filling the interstice is so selected that, at the operating temperature, the hydrogen is at least approximately completely released and, at the rest temperature, is at least approximately completely bound.
Claim 8
Dependent Claim
23 words
A structural part according to claim 1, characterized in that the metal hydride fills the interstice in an essentially gap-free or crack-free manner.
Claim 9
Dependent Claim
22 words
A structural part according to claim 1, characterized in that the metal hydride filling the interstice consists of sintered-together metal hydride granules.
Claim 10
Dependent Claim
29 words
A structural part according to claim 1, characterized in that the pore volume amounts to about 5 to 10% of the volume of the metal hydride filling the interstice.
Claim 11
Dependent Claim
57 words
A structural part whose temperature is changeable between an operating temperature and a rest temperature during non-operation according to claim 1, characterized in that the metal hydride filling the interstice is so selected that, at the operating temperature, the hydrogen is at least approximately completely released and, at the rest temperature, is at least approximately completely bound.
References Cited (Backward Citations)
US3167159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |