Patent US3692097A successfully refreshed from Google Patents.
US3692097A
Expired / Lapsed
US
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Thermal regenerators
Assignee: Leyland Gas Turbines Ltd
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Filing: 1970-09-28
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Granted: 1972-09-19
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Expires: 1990-09-28
Abstract
Abstract A thermal regenerator of the kind having a rotary disc-type matrix, traversed by segregated flows of heat-exchanging fluids, is equipped with a sealing assembly in which a support of nonmetallic refractory material locates and supports a sealing element that makes rubbing contact with the corresponding face of the matrix; the sealing assembly also including a flexible sealing member of thin sheet metal which is designed to be pressed firmly against the support by the pressure-differential of the heat-exchanging fluids.
Inventors
- 👤 Robert Noel Penny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:24
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/047; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02; Y10S165/021
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
In a thermal regenerator of the kind having a rotary disctype matrix enclosed in a casing which is traversed by two segregated flows of gaseous heat-exchanging fluids, the improved sealing assembly which comprises: a counterface sealing element that makes rubbing contact with the corresponding face of the matrix; a support of non-metallic refractory material between said casing and said sealing element that locates and supports the sealing element; and a flexible sealing member of thin sheet metal which is located on the casing between said casing and support and positioned to be pressed firmly against the support by the pressure-differential of the heat-exchanging fluids.
Claim 2
Dependent Claim
104 words
In a thermal regenerator of the kind having a rotary disctype matrix enclosed in a casing which is traversed by two segregated flows of gaseous heat-exchanging fluids, the improved sealing assembly which comprises: a counterface sealing element that makes rubbing contact with the corresponding face of the matrix; a support of non-metallic refractory material between said casing and said sealing element that locates and supports the sealing element; and a flexible sealing member of thin sheet metal which is located on the casing between said casing and support and positioned to be pressed firmly against the support by the pressure-differential of the heat-exchanging fluids.
Claim 3
Dependent Claim
21 words
A thermal regenerator according to claim 1, in which the flexible sealing member is constituted by an annulus of U-shaped cross-section.
Claim 4
Dependent Claim
38 words
A thermal regenerator according to claim 1, in which the support is constituted by an annulus of ceramic material formed with a channel that locates the counterface sealing element and holds it against the face of the matrix.
Claim 5
Dependent Claim
22 words
A thermal regenerator according to claim 1, in which the support has peripheral slots that receive locating pegs secured to the casing.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |