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US4563993A
Expired / Lapsed
US
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Fuel feeding apparatus
Assignee: Hitachi Ltd
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Filing: 1984-03-01
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Granted: 1986-01-14
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Expires: 2004-03-01
Abstract
Abstract In a fuel feeding apparatus of the type in which a vibrating element is vibrated by an electro-mechanical transducer converting electrical oscillation into mechanical vibration, and fuel injected from a fuel feeding part is directed to impinge against and atomized by the vibrating element, the frequency of the electrical oscillation applied to the transducer is changed at a predetermined period to promote atomization of fuel.
Inventors
- 👤 Teruo Yamauchi
- 👤 Yoshishige Oyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:39
CPC Classifications
F; F02; F02M; F02M37/00; F02M69/00; F02M69/04; F02M69/041; F02D; F02D41/00; F02D41/30; F02D41/3005; F02M27/00; F02M27/08; B; B05; B05B; B05B17/00; B05B17/04; B05B17/06; B05B17/0607; B05B17/0623; F02D41/20; F02D41/2096; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A fuel feeding apparatus comprising: (a) an intake passage feeding air to an internal combustion engine; (b) fuel feeding means disposed midway of said intake passage; (c) vibrating means disposed in said intake passage at a position of impingement of fuel fed from a fuel feeding part of said fuel feeding means; (d) vibration generating means having said vibrating means fixed thereto and converting electrical oscillation into mechanical vibration; and (e) electrical oscillation generating means for periodically changing the frequency of said electrical oscillation at a predetermined time interval and applying the same to said vibration generating means.
Claim 2
Dependent Claim
98 words
A fuel feeding apparatus comprising: (a) an intake passage feeding air to an internal combustion engine; (b) fuel feeding means disposed midway of said intake passage; (c) vibrating means disposed in said intake passage at a position of impingement of fuel fed from a fuel feeding part of said fuel feeding means; (d) vibration generating means having said vibrating means fixed thereto and converting electrical oscillation into mechanical vibration; and (e) electrical oscillation generating means for periodically changing the frequency of said electrical oscillation at a predetermined time interval and applying the same to said vibration generating means.
Claim 3
Dependent Claim
26 words
A fuel feeding apparatus as claimed in claim 1, wherein said vibrating means is disposed downstream of the fuel feeding part of said fuel feeding means.
Claim 4
Dependent Claim
34 words
A fuel feeding apparatus as claimed in claim 2, wherein said vibrating means is an annular element having its both end openings arranged in the flowing direction of air flowing through said intake passage.
Claim 5
Dependent Claim
23 words
A fuel feeding apparatus as claimed in claim 1, wherein said electrical oscillation generating means generates the electrical oscillation continuously relative to time.
Claim 6
Dependent Claim
23 words
A fuel feeding apparatus as claimed in claim 1, wherein said electrical oscillation generating means generates the electrical oscillation intermittently relative to time.
Claim 7
Dependent Claim
45 words
A fuel feeding apparatus as claimed in claim 5, wherein said fuel feeding means is an electromagnetic fuel injection valve injecting fuel intermittently, and said electrical oscillation generating means generates the electrical oscillation intermittently during only the open time of said electromagnetic fuel injection valve.
Claim 8
Dependent Claim
93 words
A fuel feeding apparatus comprising: (a) an intake passage feeding air to an internal combustion engine; (b) vibrating means disposed midway of said intake passage; (c) vibration generating means having said vibrating means fixed thereto and converting electrical oscillation into mechanical vibration; (d) electrical oscillation generating means for periodically changing a frequency of said electrical oscillation at a predetermined time interval and applying said electrical oscillation to said vibration generating means; and (e) fuel feeding means directing fuel toward maximum amplitude regions appearing on said vibrating means during vibration of said vibrating means.
Claim 9
Dependent Claim
93 words
A fuel feeding apparatus comprising: (a) an intake passage feeding air to an internal combustion engine; (b) vibrating means disposed midway of said intake passage; (c) vibration generating means having said vibrating means fixed thereto and converting electrical oscillation into mechanical vibration; (d) electrical oscillation generating means for periodically changing a frequency of said electrical oscillation at a predetermined time interval and applying said electrical oscillation to said vibration generating means; and (e) fuel feeding means directing fuel toward maximum amplitude regions appearing on said vibrating means during vibration of said vibrating means.
Claim 10
Dependent Claim
34 words
A fuel feeding apparatus as claimed in claim 7, wherein said vibrating means is an annular element having its both end openings arranged in the flowing direction of air flowing through said intake passage.
Claim 11
Dependent Claim
40 words
A fuel feeding apparatus as claimed in claim 8, wherein said fuel feeding means is an electromagnetic fuel injection valve, and said electromagnetic fuel injection valve has its nozzle holes disposed above the upper end of said annular vibrating element.
Claim 12
Dependent Claim
43 words
A fuel feeding apparatus as claimed in claim 8, wherein said fuel feeding means is an electromagnetic fuel injection valve, and said electromagnetic fuel injection valve has its nozzle holes disposed intermediate between the upper and lower ends of said annular vibrating element.
Claim 13
Dependent Claim
17 words
A fuel feeding apparatus as claimed in claim 7, wherein said vibrating means is a disc-shaped element.
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) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |