US4315490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevaporizing diesel injector
Assignee: Boeing North American Inc
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Filing: 1980-06-30
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Granted: 1982-02-16
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Expires: 2000-06-30
Abstract
Abstract A diesel engine having a fuel vaporizing chamber in which liquid fuel is vaporized prior to injection into the precombustion chamber.
Inventors
- 👤 William T. Webber
- 👤 Leon Stabinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
F; F02; F02B; F02B43/00; F02M; F02M53/00; F02M53/02; F02B2275/00; F02B2275/16; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
74 words
A diesel engine comprising: an engine cylinder; a piston movable within said engine cylinder; a precombustion chamber communicating with said engine cylinder; fuel injector means delivering vaporized fuel into said precombustion chamber in a predetermined manner; a fuel vaporizing chamber; liquid supply means for delivering liquid fuel into said fuel vaporizing chamber from a suitable source; and vapor delivery means for delivering vaporized fuel from said fuel vaporizing chamber to said fuel injector means.
Claim 2
Dependent Claim
74 words
A diesel engine comprising: an engine cylinder; a piston movable within said engine cylinder; a precombustion chamber communicating with said engine cylinder; fuel injector means delivering vaporized fuel into said precombustion chamber in a predetermined manner; a fuel vaporizing chamber; liquid supply means for delivering liquid fuel into said fuel vaporizing chamber from a suitable source; and vapor delivery means for delivering vaporized fuel from said fuel vaporizing chamber to said fuel injector means.
Claim 3
Dependent Claim
24 words
The diesel engine of claim 1 further comprising heating means surrounding said fuel vaporizing chamber, said vapor delivery means, and said fuel injector means.
Claim 4
Dependent Claim
33 words
The diesel engine of claim 1 wherein said fuel vaporizing chamber comprises a float valve for limiting the amount of liquid fuel delivered into said fuel vaporizing chamber by said liquid supply means.
Claim 5
Dependent Claim
15 words
The diesel engine of claim 1 wherein said vapor delivery means includes pressure regulating means.
Claim 6
Dependent Claim
46 words
THe diesel engine of claim 1 wherein said fuel injector means comprises: a fuel cylinder; a pump piston movable within said fuel cylinder; and pintle valve means communicating said fuel cylinder with said precombustion chamber and regulating the flow of vaporized fuel into said precombustion chamber.
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) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |