US4789331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel burner
Assignee: Isuzu Motors Ltd
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Filing: 1987-07-08
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Granted: 1988-12-06
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Expires: 2007-07-08
Abstract
Abstract A burner comprises a fiber wick-filled atomizing chamber formed at an end of a combustion cylinder that constitutes a combustion chamber; a perforated ceramic disc provided in front of the atomizing chamber; and a heating plug that protrudes into the combustion chamber penetrating through the fiber wick and the ceramic disc. The heating plug is constituted by a heater bar composed of a ceramic material in which a heater coil is buried, in such a manner that a portion positioned in the atomizing chamber has a low temperature and an end protruded into the combustion chamber has a high temperature. The atomizing chamber, the combustion chamber and the combustion gas exhaust port are laterally arranged nearly in a horizontal direction, and a fuel feeding port is open at an upper portion of the atomizing chamber. Moreover, an air introducing path is formed between the combustion cylinder and an outer cylinder which surrounds the combustion cylinder.
Inventors
- 👤 Hideo Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:46
CPC Classifications
F; F23; F23D; F23D3/00; F23D3/40; F23C; F23C7/00; F23C7/02; F23D11/00; F23M; F23M5/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
A burner comprising a combustion cylinder in which a combustion chamber is constituted; a ceramic plate which constitutes an atomizing chamber at one end portion of said combustion cylinder and which is mounted on a wall at one end of said combustion cylinder, said ceramic plate having a plurality of holes; a combustion gas exhaust port formed in the other end portion of said combustion cylinder; a fiber wick contained in said atomizing chamber; a heating plug which extends in the axial direction of said combustion cylinder through said atomizing chamber and said ceramic plate from the outside of the wall at one end of said combustion cylinder, a portion of the surface of said heating plug being exposed in said atomizing chamber and being brought into direct contact with said fiber wick contained in said atomizing chamber; a fuel feed means for feeding a liquid fuel to said atomizing chamber in which said fiber wick is contained; and a plurality of air introducing holes formed to penetrate through a wall of said combustion cylinder at a plurality of positions spaced apart from each other in the axial direction of said combustion cylinder.
Claim 2
Dependent Claim
193 words
A burner comprising a combustion cylinder in which a combustion chamber is constituted; a ceramic plate which constitutes an atomizing chamber at one end portion of said combustion cylinder and which is mounted on a wall at one end of said combustion cylinder, said ceramic plate having a plurality of holes; a combustion gas exhaust port formed in the other end portion of said combustion cylinder; a fiber wick contained in said atomizing chamber; a heating plug which extends in the axial direction of said combustion cylinder through said atomizing chamber and said ceramic plate from the outside of the wall at one end of said combustion cylinder, a portion of the surface of said heating plug being exposed in said atomizing chamber and being brought into direct contact with said fiber wick contained in said atomizing chamber; a fuel feed means for feeding a liquid fuel to said atomizing chamber in which said fiber wick is contained; and a plurality of air introducing holes formed to penetrate through a wall of said combustion cylinder at a plurality of positions spaced apart from each other in the axial direction of said combustion cylinder.
Claim 3
Dependent Claim
38 words
A burner according to claim 1, wherein said heating plug is so constituted that a portion thereof located in said atomizing chamber has a low temperature and an end protruded into said combustion chamber has a high temperature.
Claim 4
Dependent Claim
26 words
A burner according to claim 1, wherein said heating plug is a heater bar composed of a ceramic material in which a heater coil is buried.
Claim 5
Dependent Claim
26 words
A burner according to claim 1, wherein an air introducing path is formed between said combustion cylinder and an outer cylinder which surrounds said combustion cylinder.
Claim 6
Dependent Claim
29 words
A burner according to claim 1, wherein said atomizing chamber, said combustion chamber and said combustion gas exhaust port are arranged in a lateral direction relative to each other.
Claim 7
Dependent Claim
27 words
A burner according to claim 5, wherein a fuel feed port of said fuel feed means is open at an upper end portion of said atomizing chamber.
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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) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |