US4406665A
Expired / Lapsed
US
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Diesel fuel composition
Assignee: Ethyl Corp
•
Filing: 1982-08-16
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Granted: 1983-09-27
•
Expires: 2002-08-16
Abstract
Abstract Cetane number of diesel fuel, both hydrocarbon and alcohol, is increased by adding a small amount of a tetrahydrofuranol nitrate.
Inventors
- 👤 Allen H. Filbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:51
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/42; C07D211/44; C07D211/46; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C10; C10L; C10L1/00; C10L1/02; C10L1/026; C10L1/10; C10L1/14; C10L1/22; C10L1/23; C10L1/231; C10L1/232; C10L1/233; C10L1/2335; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
41 words
Liquid fuel adapted for use in a diesel engine, said fuel being selected from the group consisting of liquid hydrocarbons of the diesel boiling range, alcohols and mixtures thereof, said fuel containing a cetane number increasing amount of a tetrahydrofuranol nitrate.
Claim 2
Dependent Claim
41 words
Liquid fuel adapted for use in a diesel engine, said fuel being selected from the group consisting of liquid hydrocarbons of the diesel boiling range, alcohols and mixtures thereof, said fuel containing a cetane number increasing amount of a tetrahydrofuranol nitrate.
Claim 3
Dependent Claim
18 words
A fuel composition of claim 1 wherein said fuel is said liquid hydrocarbon of the diesel boiling range.
Claim 4
Dependent Claim
53 words
A fuel composition of claim 2 wherein said tetrahydrofuranol nitrate has the structure ##STR2## wherein R' and R" are independently selected from the group consisting of hydrogen, alkyl containing 1-20 carbon atoms, cycloalkyl containing 5-8 carbon atoms, alkenyl containing 2-20 carbon atoms, aryl containing 6-12 carbon atoms and aralkyl containing 7-12 carbon atoms.
Claim 5
Dependent Claim
13 words
A fuel composition of claim 3 wherein said tetrahydrofuranol nitrate is 3-tetrahydrofuranol nitrate.
References Cited (Backward Citations)
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US2599338A
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US2858200A
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US3311559A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |