US4687436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasified fuel combustion apparatus
Assignee: Individual
•
Filing: 1986-08-05
•
Granted: 1987-08-18
•
Expires: 2006-08-05
Abstract
Abstract A gasified fuel combustion apparatus is constructed such that an air chamber connected with a blower is provided to surround a cylindrical combustion chamber having an outer wall made of a heat-resistant material. A fuel supplying tube is provided to open tangentially in a closed end portion of the combustion chamber and a plurality of main air blowing holes of a comparatively large diameter are provided through the outer wall of the combustion chamber at positions adjacent to the fuel supplying tube such that the main air blowing holes are inclined to both of the rotating direction of the fuel and the blowing direction of the combustion flame. A number of auxiliary air blowing holes having a comparatively small diameter are also provided through the outer wall of the combustion chamber at positions downstream from the main blowing holes with orientations similar to those of the main air blowing holes.
Inventors
- 👤 Tadao Shigeta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:21
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A gasified fuel combustion apparatus comprising: a cylindrical combustion chamber having an outer wall made of a heat-resistant material; an air chamber provided to surround said combustion chamber; a blower located on a wall of said air chamber so as to supply air to said air chamber; a fuel supplying tube opening into a closed end of said cylindrical combustion chamber in a tangential manner so as to rotate a gasified fuel supplied therethrough in one direction; a plurality of main air blowing holes having diameters, each formed through the outer wall of said cylindrical combustion chamber at a position adjacent to said fuel supplying tube with an orientation inclined to both of the rotating direction of the fuel and the blowing direction of a combustion flame; and a number of auxiliary air blowing holes having diameters, each smaller than that of said main air blowing hole, provided through the outer wall of said combustion chamber at positions downstream from said main blowing holes with orientations similar to those of said main air blowing holes.
Claim 2
Dependent Claim
175 words
A gasified fuel combustion apparatus comprising: a cylindrical combustion chamber having an outer wall made of a heat-resistant material; an air chamber provided to surround said combustion chamber; a blower located on a wall of said air chamber so as to supply air to said air chamber; a fuel supplying tube opening into a closed end of said cylindrical combustion chamber in a tangential manner so as to rotate a gasified fuel supplied therethrough in one direction; a plurality of main air blowing holes having diameters, each formed through the outer wall of said cylindrical combustion chamber at a position adjacent to said fuel supplying tube with an orientation inclined to both of the rotating direction of the fuel and the blowing direction of a combustion flame; and a number of auxiliary air blowing holes having diameters, each smaller than that of said main air blowing hole, provided through the outer wall of said combustion chamber at positions downstream from said main blowing holes with orientations similar to those of said main air blowing holes.
Claim 3
Dependent Claim
67 words
The gasified fuel combustion apparatus according to claim 1 wherein a rectifying cylinder of a hollow construction is further provided in the closed end of said fuel combustion chamber, an internal space of said rectifying cylinder is communicated with said air chamber, and a plurality of additional air blowing holes similar to said auxiliary air blowing holes are provided through said rectifying cylinder for supplying air therethrough.
Claim 4
Dependent Claim
49 words
The gasified fuel combustion apparatus according to claim 1 wherein each of said main air blowing holes is formed by a short pipe secured to said outer wall of said cylindrical combustion chamber and an elbow of an obtuse angle connected with said short pipe in a screw-thread engagement.
Claim 5
Dependent Claim
38 words
The gasified fuel combustion apparatus according to claim 1 wherein means are further provided through said closed end of said cylindrical combustion chamber for permitting inspection of the condition of the combustion caused in said cylindrical combustion chamber.
Claim 6
Dependent Claim
28 words
The gasified fuel combustion apparatus according to claim 1 wherein ignition means are further provided outside of said cylindrical combustion chamber for initiating operation of said combustion apparatus.
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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |