US4394134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducing fuel consumption with a fluorinated compound
Assignee: Mobil Oil AS
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Filing: 1979-11-09
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Granted: 1983-07-19
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Expires: 1999-11-09
Abstract
Abstract Polymerizable (that is, e.g., monomeric) polyfluorinated compounds, when added to a lubricant or to a liquid hydrocarbon fuel, as for example gasoline, will cause a reduction in fuel consumption. Reduced fuel consumption may also be realized for long periods from pistons and/or cylinder walls so coated with one or more of the polymerizable compounds.
Inventors
- 👤 Carleton N. Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:14
CPC Classifications
C; C10; C10M; C10M147/00; C10M147/04; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/20; C10L1/206; C10L1/208; C10M2213/00; C10M2213/04; C10M2213/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A method for decreasing fuel consumption in an internal combustion engine by adding to the lubricating oil or liquid hydrocarbon fuel used therein a sufficient amount of a polymerizable polyfluoro monomer compound of the formula ##STR4## wherein R is a C 3 to C 17 aliphatic hydrocarbon group containing from 5 to 35 fluoride groups, R' is hydrogen or a C 1 -C 3 hydrocarbyl group and R" is hydrogen or a C 1 -C 18 hydrocarbyl group and polymerizing said monomer during engine operation to form an amount of a polymer thereof to effect a reduction in fuel consumption of said engine.
Claim 2
Independent Claim
103 words
A method for decreasing fuel consumption in an internal combustion engine by adding to the lubricating oil or liquid hydrocarbon fuel used therein a sufficient amount of a polymerizable polyfluoro monomer compound of the formula ##STR4## wherein R is a C 3 to C 17 aliphatic hydrocarbon group containing from 5 to 35 fluoride groups, R' is hydrogen or a C 1 -C 3 hydrocarbyl group and R" is hydrogen or a C 1 -C 18 hydrocarbyl group and polymerizing said monomer during engine operation to form an amount of a polymer thereof to effect a reduction in fuel consumption of said engine.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein the monomer is ##STR5##
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein in the lubricating oil the concentration of the monomer is from about 0.05% to about 3% by weight.
Claim 5
Dependent Claim
20 words
The method of claim 3 wherein the concentration of the monomer is from about 0.1% to about 1% by weight.
Claim 6
Dependent Claim
24 words
The method of claim 1 wherein the concentration of the monomer in the liquid fuel is from about 0.001% to about 0.5% by weight.
Claim 7
Dependent Claim
20 words
The method of claim 5 wherein the concentration of the monomer is from about 0.01% to about 0.1% by weight.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein the lubricating oil is a mineral oil.
Claim 9
Dependent Claim
11 words
The method of claim 1 wherein the fuel used is gasoline.
Claim 10
Dependent Claim
10 words
The method of claim 8 wherein said gasoline is lead-free.
Claim 11
Dependent Claim
10 words
The method of claim 8 wherein said gasoline contains lead.
References Cited (Backward Citations)
US4039301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |