US3685946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber supplemental air supply assembly and method
Assignee: ECOLOGICAL CONTROLS Inc
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Filing: 1970-11-12
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Granted: 1972-08-22
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Expires: 1990-11-12
Abstract
Abstract A supplemental air supply assembly and method for transporting and directionally orienting high pressure air impingement on a flame envelope within a combustion chamber. Ambient air is introduced into a fan connected to a conduit which forces inlet air into the combustion chamber. The inlet air is positioned to oppose the flame envelope and is vortexed by a series of angled vanes fastened to the conduit. The air is preheated within an elongated sleeve prior to interaction with the flame envelope. The amount of high pressure inlet air introduced into the chamber is regulated.
Inventors
- 👤 Jack C Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/02; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
101 words
A supplemental air supply assembly to increase fuel combustion efficiency within a combustion chamber having a fuel burner forming a flame envelope having a surface area with a longitudinal and a transverse direction comprising: high pressure air inlet means extending through a wall of said combustion chamber for decreasing said surface area of said flame envelope thereby increasing the radiant heat transport to enclosing internal boundaries of said combustion chamber, said high pressure air having a direction substantially opposing said longitudinal direction of said flame envelope; and, means for vortexing said high pressure air for encompassing said flame envelope surface area.
Claim 2
Dependent Claim
101 words
A supplemental air supply assembly to increase fuel combustion efficiency within a combustion chamber having a fuel burner forming a flame envelope having a surface area with a longitudinal and a transverse direction comprising: high pressure air inlet means extending through a wall of said combustion chamber for decreasing said surface area of said flame envelope thereby increasing the radiant heat transport to enclosing internal boundaries of said combustion chamber, said high pressure air having a direction substantially opposing said longitudinal direction of said flame envelope; and, means for vortexing said high pressure air for encompassing said flame envelope surface area.
Claim 3
Dependent Claim
30 words
The assembly as recited in claim 1 wherein said vortexing means includes helical dispersion means to induce said streamline air flow helically about said longitudinal dimension of said flame envelope.
Claim 4
Dependent Claim
26 words
The assembly as recited in claim 1 wherein said air inlet means is positioned within said wall of said combustion chamber longitudinally opposing said flame envelope.
Claim 5
Dependent Claim
31 words
The assembly as recited in claim 1 wherein said air inlet means includes means for providing air flow pressure internal to said combustion chamber in excess of said ambient air pressure.
Claim 6
Dependent Claim
56 words
The assembly as recited in claim 1 wherein said air inlet means includes: blower means external to said combustion chamber for producing a high pressure air flow; and, conduit means coupled to said blower means and said wall of said combustion chamber to direct a predetermined quantity of said high pressure air into said combustion chamber.
Claim 7
Dependent Claim
37 words
The assembly as recited in claim 5 wherein there is provided a damping device for controllably restricting the internal passage of said conduit means to regulate the amount of high pressure air flowing through said conduit means.
Claim 8
Dependent Claim
87 words
The assembly as recited in claim 5 wherein said conduit means includes: a. damping motor means; b. an air flow blocking panel angularly oriented with respect to said conduit means passage to restrict the cross-sectional area of said passage responsive to said damping motor means actuation; and, c. a temperature sensing element connected on opposing ends to said damping motor means and internal to said combustion chamber respectively, said temperature sensing element to measure said air flow temperature within said chamber and actuate said damping motor means.
Claim 9
Dependent Claim
37 words
The assembly as recited in claim 5 wherein said conduit means is secured to said combustion chamber wall longitudinally opposed to said flame envelope to produce said air flow in a direction countercurrent to said longitudinal dimension.
Claim 10
Dependent Claim
45 words
The assembly as recited in claim 5 wherein said conduit means includes a plurality of angled vaneS secured to an inner diameter of said conduit means to direct said air flow in a transverse direction with respect to said longitudinal dimension of said flame envelope.
Claim 11
Dependent Claim
29 words
The assembly as recited in claim 9 includes an elbow section to transform initially directed air flow from said blower means to a longitudinal flow within said combustion chamber.
Claim 12
Dependent Claim
73 words
The assembly as recited in claim 10 wherein said elbow sectional element includes a tube extending in said longitudinal dimension, said tube being fixedly secured central to said passage of said conduit means and passing external thereto through a wall of said elbow sectional element, said tubing having a central through opening sealed with a high temperature transparent material external to said elbow sectional element for visual observation internal to said combustion chamber.
Claim 13
Dependent Claim
46 words
The assembly as recited in claim 9 wherein said tube includes a plurality of formed vanes secured to the periphery of said tube within said passage of said conduit means to direct the flow of said air helically about said longitudinal dimension of said flame envelope.
Claim 14
Dependent Claim
48 words
The assembly as recited in claim 1 including preheating air means rigidly secured to said air inlet means extending within said combustion chamber in said longitudinal dimension directed toward said flame envelope to heat said inlet air within said combustion chamber prior to entry into said flame envelope.
Claim 15
Dependent Claim
32 words
The assembly as recited in claim 13 wherein said preheating air means includes a tubular sleeve having a through opening, said sleeve being coaxially displaced with respect to said air inlet means.
Claim 16
Dependent Claim
37 words
The assembly as recited in claim 14 wherein said sleeve includes a first end fastened to said air inlet means and a second end having a decreased nozzle opening to increase the velocity of said air flow.
Claim 17
Dependent Claim
32 words
The assembly as recited in claim 14 wherein said sleeve is constructed of a high thermally conductive material to permit transport of heat from said combustion chamber to said air flowing therethrough.
Claim 18
Dependent Claim
17 words
The assembly as recited in claim 14 wherein said preheating air sleeve is constructed of silicon carbide.
Claim 19
Dependent Claim
46 words
The assembly as recited in claim 14 wherein said preheating air sleeve includes a plurality of helically extended air flow vanes secured to an internal diameter thereof to direct said air flow in a transverse direction with respect to said longitudinal dimension of said flame envelope.
Claim 20
Independent Claim
90 words
The method of increasing radiant heat transport from a flame envelope contained within a combustion chamber having a fuel burner, said flame envelope defining a surface area having a longitudinal and transverse direction, said flame envelope surface area to be decreased, including the steps of a. positioning a high pressure inlet air flow in a streamline contour substantially opposing in direction said flame envelope longitudinal direction; and b. vortexing said high pressure inlet air flow to produce a streamline air flow contour in said transverse direction of said flame envelope.
Claim 21
Independent Claim
90 words
The method of increasing radiant heat transport from a flame envelope contained within a combustion chamber having a fuel burner, said flame envelope defining a surface area having a longitudinal and transverse direction, said flame envelope surface area to be decreased, including the steps of a. positioning a high pressure inlet air flow in a streamline contour substantially opposing in direction said flame envelope longitudinal direction; and b. vortexing said high pressure inlet air flow to produce a streamline air flow contour in said transverse direction of said flame envelope.
Claim 22
Dependent Claim
58 words
The method as recited in claim 19 including the step of: preheating said high pressure inlet air within said combustion chamber subsequent to said introduction and prior to said impingement of said high pressure inlet air on said flame envelope, said preheating for raising the temperature of said high pressure inlet air thereby increasing the fuel combustion efficiency.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |