US3960209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative heat exchanger of a gas turbine
Assignee: Daimler Benz AG
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Filing: 1975-04-18
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Granted: 1976-06-01
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Expires: 1995-04-18
Abstract
Abstract A regenerative heat-exchanger of a gas turbine whose ceramic heat-exchanger disk is coaxially surrounded by a metallic toothed rim under formation of an annular space in which are arranged springs; the springs are constituted by spring packets of cup springs which are guided on both sides in concave recesses in two webs arranged in the circumferential direction on entrainment plates which surround the lateral surfaces of the toothed rim and are non-rotatably connected therewith.
Inventors
- 👤 Franz Neubrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:20
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/048; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/027; Y10S165/028; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907; Y10T74/19921
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
A regenerative heat-exchanger of a gas turbine, comprising a ceramic heat-exchanger disk, a metallic toothed rim substantially coaxially surrounding the heat-exchanger disk while forming an annular space, spring means arranged within the annular space which are supported under prestress, on the one hand, at entrainment plate means abutting at the circumference of the heat-exchanger disk and, on the other, against the inside of the toothed rim, characterized in that the spring means are formed by spring packets of cup springs which are guided on both sides in concave recess means provided in two webs arranged in the circumferential direction on the entrainment plate means, said webs surrounding the lateral surfaces of the toothed rim and being non-rotatably connected therewith.
Claim 2
Dependent Claim
119 words
A regenerative heat-exchanger of a gas turbine, comprising a ceramic heat-exchanger disk, a metallic toothed rim substantially coaxially surrounding the heat-exchanger disk while forming an annular space, spring means arranged within the annular space which are supported under prestress, on the one hand, at entrainment plate means abutting at the circumference of the heat-exchanger disk and, on the other, against the inside of the toothed rim, characterized in that the spring means are formed by spring packets of cup springs which are guided on both sides in concave recess means provided in two webs arranged in the circumferential direction on the entrainment plate means, said webs surrounding the lateral surfaces of the toothed rim and being non-rotatably connected therewith.
Claim 3
Dependent Claim
44 words
A regenerative heat-exchanger according to claim 1, characterized in that mutually oppositely disposed radial bar means are provided at the insides of the two webs of an entrainment plate means which engage in radial grooves provided at the lateral surfaces of the toothed rim.
Claim 4
Dependent Claim
41 words
A regenerative heat-exchanger according to claim 2, characterized in that two spring packets are supported on a respective entrainment plate means and that the bar means of the webs are arranged in the center axial plane between the two spring packets.
Claim 5
Dependent Claim
32 words
A regenerative heat-exchanger according to claim 3, characterized in that one bore each is provided within the area of the two ends of each web for the application of an assembly device.
Claim 6
Dependent Claim
41 words
A regenerative heat-exchanger according to claim 1, characterized in that two spring packets are supported on a respective entrainment plate means and that the bar means of the webs are arranged in the center axial plane between the two spring packets.
Claim 7
Dependent Claim
32 words
A regenerative heat-exchanger according to claim 1, characterized in that one bore each is provided within the area of the two ends of each web for the application of an assembly device.
Claim 8
Dependent Claim
41 words
A regenerative heat-exchanger according to claim 6, characterized in that two spring packets are supported on a respective entrainment plate means and that the bar means of the webs are arranged in the center axial plane between the two spring packets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |