US3584791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel sprayers
Assignee: ZF International UK Ltd
•
Filing: 1968-08-21
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Granted: 1971-06-15
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Expires: 1988-08-21
Abstract
Abstract Fuel spraying apparatus having a sprayer with an annular row of outlets surrounding an axial passage for air, a first annular swirler having blades on which fuel from the outlets impinge an annular air swirler surrounding the sprayer.
Inventors
- 👤 John Frederick Stratton
- 👤 Eric Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:47
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/24; F23R; F23R3/00; F23R3/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
Fuel spraying apparatus comprising in combination, a sprayer having an annularly arranged row of separate fuel outlets surrounding an axial passage for the admission of air, and a first annular swirler having helical blades which are so disposed in relation to the outlets that fuel emitted from the outlets will be directed onto respective ones of the blades, an annular air inlet surrounding the sprayer and a second annular swirler arranged in said annular air inlet.
Claim 2
Dependent Claim
76 words
Fuel spraying apparatus comprising in combination, a sprayer having an annularly arranged row of separate fuel outlets surrounding an axial passage for the admission of air, and a first annular swirler having helical blades which are so disposed in relation to the outlets that fuel emitted from the outlets will be directed onto respective ones of the blades, an annular air inlet surrounding the sprayer and a second annular swirler arranged in said annular air inlet.
Claim 3
Dependent Claim
29 words
Fuel spraying apparatus as claimed in claim 1 in which the blades of the first annular swirler are carried by a sleeve connected to the end of the sprayer.
Claim 4
Dependent Claim
27 words
Fuel spraying apparatus as claimed in claim 1 in which the annular air inlet contains a further set of vanes disposed upstream of the second annular swirler.
References Cited (Backward Citations)
US744220A
Cited
US1136849A
Cited
US1954873A
Cited
US2531538A
Cited
FR1245788A
Cited
US3182711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |