US4552015A
Expired / Lapsed
US
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Fuel consumption measuring system
Assignee: Motors Liquidation Co
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Filing: 1984-02-09
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Granted: 1985-11-12
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Expires: 2004-02-09
Abstract
Abstract An internal combustion engine fuel consumption measurement system including an auxiliary fuel reservoir from which the engine fuel requirements are supplied and into which make-up fuel is provided to maintain a constant fuel volume and pressure. The make-up fuel quantity is measured as an indication of the fuel consumption of the internal combustion engine.
Inventors
- 👤 David P. Emmett
- 👤 Duane D. Muelling
- 👤 Ronald J. Willett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:10
CPC Classifications
F; F02; F02M; F02M55/00; F02B; F02B77/00; F02B77/08; F02M55/007; G; G01; G01F; G01F13/00; G01F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
206 words
A fuel consumption measuring system for use with an internal combustion engine comprising, in combination: a main fuel reservoir; an auxiliary fuel reservoir; engine fuel delivery means; means effective to supply fuel from the auxiliary fuel reservoir to the engine fuel delivery means and to return unused fuel to the auxiliary fuel reservoir; means effective to supply fuel from the main fuel reservoir to the auxiliary fuel reservoir at a predetermined pressure so that the auxiliary fuel reservoir is maintained full and at the predetermined pressure; means effective to vent vapors from the auxiliary fuel reservoir so that a constant volume of fuel is maintained in the auxiliary fuel reservoir; a cooling coil in the auxiliary fuel reservoir; means effective to circulate fuel from the main fuel reservoir through the cooling coil so as to cool the fuel in the auxiliary fuel reservoir; and measuring means effective to measure the fuel flow from the main fuel reservoir to the auxiliary fuel reservoir, the measured flow being equal to the fuel delivered to the engine by the engine fuel delivery means, whereby the pressurized fuel in the auxiliary fuel reservoir allows maximum engine acceleration rates with no delay in the make-up flow from the main fuel reservoir.
Claim 2
Dependent Claim
206 words
A fuel consumption measuring system for use with an internal combustion engine comprising, in combination: a main fuel reservoir; an auxiliary fuel reservoir; engine fuel delivery means; means effective to supply fuel from the auxiliary fuel reservoir to the engine fuel delivery means and to return unused fuel to the auxiliary fuel reservoir; means effective to supply fuel from the main fuel reservoir to the auxiliary fuel reservoir at a predetermined pressure so that the auxiliary fuel reservoir is maintained full and at the predetermined pressure; means effective to vent vapors from the auxiliary fuel reservoir so that a constant volume of fuel is maintained in the auxiliary fuel reservoir; a cooling coil in the auxiliary fuel reservoir; means effective to circulate fuel from the main fuel reservoir through the cooling coil so as to cool the fuel in the auxiliary fuel reservoir; and measuring means effective to measure the fuel flow from the main fuel reservoir to the auxiliary fuel reservoir, the measured flow being equal to the fuel delivered to the engine by the engine fuel delivery means, whereby the pressurized fuel in the auxiliary fuel reservoir allows maximum engine acceleration rates with no delay in the make-up flow from the main fuel reservoir.
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) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |