US3756211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic fuel injection system having pulse extender
Assignee: Bendix Corp
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Filing: 1972-03-30
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Granted: 1973-09-04
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Expires: 1992-03-30
Abstract
Abstract A fluidic fuel injection system is illustrated and described having fluidic means to modulate the duration of the normally generated injection pulse. The pulse extender receives the normally generated injection pulse and applied that pulse through gating means to the fuel injection controlling device. The pulse extender also receives a signal indicative of an engine operating parameter such as for instance, an engine temperature, and stores a signal which is a function of the duration of the normally generated injection controlling pulse and the engine variable. Following termination of the normally provided injection controlling pulse, the stored signal is then communicated to the fuel injection controlling devices to provide for prolongation, in a predetermined controlled manner, of delivery of fuel.
Inventors
- 👤 L Taplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:36
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/002; Y; Y10; Y10S; Y10S123/00; Y10S123/10; Y10S261/00; Y10S261/69; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
163 words
A fluidic fuel control system for an internal combustion engine comprising: a plurality of sensory means responsive to the operating conditions of the engine operative to generate a plurality of fluidic signals, each of said signals having a variable characteristic indicative of the sensed operating condition; a source of pressurized fluid; first fluidic means responsive to said sensory means and receiving fluid from said source, operative to generate a first pulse signal having a duration indicative of the engine fuel requirements; second fluidic means responsive to said first fluidic means and receiving fluid from said source, operative to generate a second pulse signal having a duration related to, but longer than, the duration of said first pulse signal and which is representative of the engine fuel requirement; and fuel delivery means responsive to said second pulse signal operative to deliver fuel to at least a portion of the engine for a period of time substantially corresponding to the duration of said second signal.
Claim 2
Dependent Claim
163 words
A fluidic fuel control system for an internal combustion engine comprising: a plurality of sensory means responsive to the operating conditions of the engine operative to generate a plurality of fluidic signals, each of said signals having a variable characteristic indicative of the sensed operating condition; a source of pressurized fluid; first fluidic means responsive to said sensory means and receiving fluid from said source, operative to generate a first pulse signal having a duration indicative of the engine fuel requirements; second fluidic means responsive to said first fluidic means and receiving fluid from said source, operative to generate a second pulse signal having a duration related to, but longer than, the duration of said first pulse signal and which is representative of the engine fuel requirement; and fuel delivery means responsive to said second pulse signal operative to deliver fuel to at least a portion of the engine for a period of time substantially corresponding to the duration of said second signal.
Claim 3
Dependent Claim
140 words
In an internal combustion engine fluidic fuel control system of the type having fuel supply means, first fluidic means to generate a signal indicative of the engine fuel requirement and further fluidic means responsive to the first mentioned fluidic means operative to control the fuel supply means, the improvement in said further fluidic means comprising; fluidic signal storage means for receiving and storing the first fluidic means signal and operative to generate a further fluidic signal following termination of the first fluidic means signal having a duration related to the first signal duration by a storage factor; and fluidic gating means responsive to said signal storage means further fluidic signal and to the first fluidic means signal operative to generate a fuel supply means control signal whenever the first fluidic means signal or said storage means further signal is present.
Claim 4
Dependent Claim
140 words
In an internal combustion engine fluidic fuel control system of the type having fuel supply means, first fluidic means to generate a signal indicative of the engine fuel requirement and further fluidic means responsive to the first mentioned fluidic means operative to control the fuel supply means, the improvement in said further fluidic means comprising; fluidic signal storage means for receiving and storing the first fluidic means signal and operative to generate a further fluidic signal following termination of the first fluidic means signal having a duration related to the first signal duration by a storage factor; and fluidic gating means responsive to said signal storage means further fluidic signal and to the first fluidic means signal operative to generate a fuel supply means control signal whenever the first fluidic means signal or said storage means further signal is present.
Claim 5
Dependent Claim
37 words
The system as claimed in claim 2 wherein said storage means includes maximal limiting means operative to limit the amount of signal stored and hence the duration of said further fluidic signal to a predetermined maximum value.
Claim 6
Dependent Claim
52 words
The system as claimed in claim 3 wherein said storage means further include sequencing means operative to maintain the storage means in a condition of full charge for the duration of the first fluidic means signal whereby the full amount of the stored signal is available to generate said further fluidic signal.
Claim 7
Dependent Claim
31 words
The system as claimed in claim 3 including inhibiting means operative to prevent generation of said further fluidic signal whenever the first fluidic signal duration is less than a predetermined amount.
Claim 8
Dependent Claim
16 words
The system as claimed in claim 4 wherein said storage means comprises a fluid receiving chamber.
Claim 9
Dependent Claim
148 words
The system as claimed in claim 6 wherein said storage means include a fluidic gating amplifier having a preferred and a nonpreferred fluid outlet passage, a power nozzle and at least two opposed control nozzles, one of the control nozzles being adjacent the preferred fluid outlet passage and the other control nozzle being adjacent the nonpreferred outlet passage, conduit means communicating the nonpreferred outlet passage with said gating means and further conduit means intercommmunicating said chamber with the first fluidic means and with the one control nozzle and said sequencing means comprise conduit means intercommunicating the first fluidic means with the other control nozzle whereby fluid discharge from the fluidic gating amplifier will be from the preferred outlet passage in all cases except the combined presence of a control fluid from the one control nozzle and the absence of a control fluid flow from the other control nozzle.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |