US3634670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Normalized fuel rate computer
Assignee: Individual
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Filing: 1969-09-02
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Granted: 1972-01-11
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Expires: 1989-09-02
Abstract
Abstract An analog computer simulates and/or determines on a real time basis the normalized fuel consumption of a ship''s powerplant. A plurality of powerplant parameters are transformed into a form (1 + OR - Delta pi), and normalized fuel rate is computed by displaying a linearly combined sum of weighted replicas of signals embodying the several pi''s.
Inventors
- 👤 Stephen B Judlowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
180 words
In combination in an analog arrangement for computing the normalized fuel consumption of a propulsion system, the relationship between normalized fuel consumption and each of a number n of operational parameters being expressible in the form (1 + OR - Delta pi), where n is any positive integer and Delta pi is any positive or negative number less than one which expresses the differential change in normalized fuel consumption as a function of the parameter value and wherein the range for each of the n Delta pi is Delta pi, means for generating a continuous analog electrical signal representing each of the n Delta pi, plural weighting networks connected to said signalgenerating means for providing a weighted replica of an associated Delta pi signal, means for linearly combining the n weighted signals, and display means foR presenting the linearly combined signals, wherein said display means has a full scale presentation of M units, where M is any positive number, said weighting means including means for weighting each of said n Delta pi signals for a full range display of units.
Claim 2
Dependent Claim
180 words
In combination in an analog arrangement for computing the normalized fuel consumption of a propulsion system, the relationship between normalized fuel consumption and each of a number n of operational parameters being expressible in the form (1 + OR - Delta pi), where n is any positive integer and Delta pi is any positive or negative number less than one which expresses the differential change in normalized fuel consumption as a function of the parameter value and wherein the range for each of the n Delta pi is Delta pi, means for generating a continuous analog electrical signal representing each of the n Delta pi, plural weighting networks connected to said signalgenerating means for providing a weighted replica of an associated Delta pi signal, means for linearly combining the n weighted signals, and display means foR presenting the linearly combined signals, wherein said display means has a full scale presentation of M units, where M is any positive number, said weighting means including means for weighting each of said n Delta pi signals for a full range display of units.
Claim 3
Dependent Claim
62 words
A combination as in claim 1 further comprising a voltage source, and wherein said Delta pi signal-generating means includes a plurality of potentiometers each including fixed end terminals and a variable terminal, said potentiometers associated with positive and negative sloping functions (1+ Delta pi) and (1- Delta pi) having their fixed terminals connected to said voltage source in an opposite polarity relationship.
Claim 4
Dependent Claim
18 words
A combination as in claim 2 wherein said Delta pi signal generating means includes a balanced parameter-monitoring transducer.
Claim 5
Dependent Claim
45 words
A combination as in claim 2 wherein said Delta pi signal-generating means includes a least one balanced parameter-monitoring transducer, and further includes switching means for connecting a selected one of said potentiometer variable terminals or said transducer to an associated one of said weighting networks.
Claim 6
Independent Claim
153 words
The method for computing normalized fuel consumption of a propulsion system, the relationship between normalized fuel consumption and each of a number n of operational parameters being expressible in the form (1 + or - Delta pi), where n is any positive integer and Delta pi is any positive or negative number less than one which expresses the differential change in normalized fuel consumption as a function of the parameter value, and wherein the range for each of the n Delta pi is Delta pi, comprising developing an electrical signal proportional to each of the n Delta pi displacement values, weighting the significance of the n signals, linearly combining the n weighted signals, and displaying a replica of the combined signals, wherein the display has a full scale presentation of M units where M is any positive number, wherein the signal weighting step weights each signal for a total display presentation of units.
Claim 7
Independent Claim
153 words
The method for computing normalized fuel consumption of a propulsion system, the relationship between normalized fuel consumption and each of a number n of operational parameters being expressible in the form (1 + or - Delta pi), where n is any positive integer and Delta pi is any positive or negative number less than one which expresses the differential change in normalized fuel consumption as a function of the parameter value, and wherein the range for each of the n Delta pi is Delta pi, comprising developing an electrical signal proportional to each of the n Delta pi displacement values, weighting the significance of the n signals, linearly combining the n weighted signals, and displaying a replica of the combined signals, wherein the display has a full scale presentation of M units where M is any positive number, wherein the signal weighting step weights each signal for a total display presentation of units.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |