Patent US3919840A successfully refreshed from Google Patents.
US3919840A
Expired / Lapsed
US
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Combustion chamber for dissimilar fluids in swirling flow relationship
Assignee: RTX Corp
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Filing: 1973-11-12
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Granted: 1975-11-18
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Expires: 1993-11-12
Abstract
Abstract The characteristics of thermodynamically and aerodynamically dissimilar fluids in swirling flow relationship are established and/or varied to accelerate mixing and hence combustion in the combustion zone and mixing and hence cooling of the products of combustion, in the dilution zone of an annular burner.
Inventors
- 👤 Stanley J Markowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:47
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/38; F02K1/386; F23; F23R; F23R3/00; F23R3/28; F23R3/34; F02G; F02G2243/00; F02G2243/30; F02G2243/50; F02G2243/52; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
A folded combustion chamber including: A. a duct having a bend therein of at least 90*, B. combustion chamber means and a dilutant flow passage located juxtaposition at the upstream end of said duct, C. means to pass the products of combustion from said combustion chamber means of density Rho 1 through duct bend, D. means to pass a dilutant fluid of density Rho 2 through said dilutant flow passage to establish an interfere between said products of combustion and dilutant fluid, E. said duct bend being of selected curvature such that a tangential velocity Vt1 is imparted to the products of combustion passing therethrough and a tangential velocity Vt2 is imparted to the dilutant fluid passing therethrough and so that the product parameter Rho 2 Vt22 is greater than the product parameter Rho 1 Vt12 to accelerate intermixing between said products of combustion and said dilutant fluid in said duct bend so that said duct bend serves as a dilution zone to cool said products of combustion.
Claim 2
Dependent Claim
168 words
A folded combustion chamber including: A. a duct having a bend therein of at least 90*, B. combustion chamber means and a dilutant flow passage located juxtaposition at the upstream end of said duct, C. means to pass the products of combustion from said combustion chamber means of density Rho 1 through duct bend, D. means to pass a dilutant fluid of density Rho 2 through said dilutant flow passage to establish an interfere between said products of combustion and dilutant fluid, E. said duct bend being of selected curvature such that a tangential velocity Vt1 is imparted to the products of combustion passing therethrough and a tangential velocity Vt2 is imparted to the dilutant fluid passing therethrough and so that the product parameter Rho 2 Vt22 is greater than the product parameter Rho 1 Vt12 to accelerate intermixing between said products of combustion and said dilutant fluid in said duct bend so that said duct bend serves as a dilution zone to cool said products of combustion.
Claim 3
Dependent Claim
85 words
Apparatus according to claim 1 wherein said combustion chamber means, said dilutent flow passage and said duct are of annular shape and wherein the flow of said diluent fluid through said duct bend is at a lesser radius of curvature than the flow of the products of combustion through said duct bend, and including trigger means supported from the downstream end of said combustion chamber means and shape to disturb the interface between the products of combustion and the diluent fluid to accelerate mixing therebetween.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |