Patent US4370147A successfully refreshed from Google Patents.
US4370147A
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Fuel for compression ignition engines
Assignee: Horizon Chemical Inc
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Filing: 1979-10-01
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Granted: 1983-01-25
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Expires: 1999-10-01
Abstract
Abstract Fuel consumption in compression ignition engines is significantly reduced by the addition to fuel for operating said engines of from about 1.0×10 -6 to about 1.0×10 -3 parts by weight of at least one isomer of dinitrotoluene. Optionally, the fuel may further contain an amount of at least one metal acetylacetonate to effect an appreciable reduction in the level of combustion particulates which are produced upon ignition of the fuel.
Inventors
- 👤 Thomas C. Kenny
- 👤 John P. Plunkett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:30
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/23; C10L1/231; C10L1/18; C10L1/1814
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
26 words
A fuel for a compression ignition engine containing from about 1.0×10 -6 to about 1.0×10 -3 parts by weight of at least one isomer of dinitrotoluene.
Claim 2
Dependent Claim
26 words
A fuel for a compression ignition engine containing from about 1.0×10 -6 to about 1.0×10 -3 parts by weight of at least one isomer of dinitrotoluene.
Claim 3
Dependent Claim
24 words
The fuel of claim 1 containing from about 1.5×10 -6 to about 1.0×10 -5 parts by weight of at least one isomer of dinitrotoluene.
Claim 4
Dependent Claim
9 words
The fuel of claim 1 or 2 containing 2,4-dinitrotoluene.
Claim 5
Dependent Claim
17 words
The fuel of claim 3 wherein the 2,4-dinitrotoluene is in admixture with a minor amount of 2,6-dinitrotoluene.
Claim 6
Dependent Claim
16 words
The fuel of claim 1 containing a combustion particulate-reducing amount of at least one metal acetylacetonate.
Claim 7
Dependent Claim
30 words
The fuel of claim 5 containing the metal acetylacetonate in an amount of from about 4.0×10 -6 to about 1.0×10 -3 parts by weight per part by weight of fuel.
Claim 8
Dependent Claim
30 words
The fuel of claim 6 containing the metal acetylacetonate in an amount of from about 5.0×10 -6 to about 1.0×10 -5 parts by weight per part by weight of fuel.
Claim 9
Dependent Claim
35 words
The fuel of claim 5 wherein the metal acetylacetonate is selected from the group consisting of nickel propionylacetonate, cobaltous propionylacetonate, cobaltic acetylacetonate, ferric acetylacetonate, cerous propionylacetonate, thorium acetylacetonate, zirconium acetylacetonate, chromic acetylacetonate and aluminum acetylacetonate.
Claim 10
Independent Claim
38 words
A method for operating a compression ignition engine which comprises adding to the liquid hydrocarbon fuel employed in the engine, from about 1.0×10 -6 to about 1.0×10 -3 parts by weight of at least one isomer of dinitrotoluene.
Claim 11
Independent Claim
38 words
A method for operating a compression ignition engine which comprises adding to the liquid hydrocarbon fuel employed in the engine, from about 1.0×10 -6 to about 1.0×10 -3 parts by weight of at least one isomer of dinitrotoluene.
Claim 12
Dependent Claim
29 words
The method of claim 9 wherein the liquid hydrocarbon fuel contains from about 1.5×10 -6 to about 1.0×10 -5 parts by weight of at least one isomer of dinitrotoluene.
Claim 13
Dependent Claim
12 words
The method of claim 10 wherein the liquid hydrocarbon fuel contains 2,4-dinitrotoluene.
Claim 14
Dependent Claim
17 words
The method of claim 11 wherein the 2,4-dinitrotoluene is in admixture with a minor amount of 2,6-dinitrotoluene.
Claim 15
Dependent Claim
21 words
The method of claim 9 wherein the liquid hydrocarbon fuel contains a combustion particulate-reducing amount of at least one metal acetylacetonate.
Claim 16
Dependent Claim
35 words
The method of claim 13 wherein the liquid hydrocarbon fuel contains the metal acetylacetonate in an amount of from about 4.0×10 -6 to about 1.0×10 -3 parts by weight per part by weight of fuel.
Claim 17
Dependent Claim
35 words
The method of claim 14 wherein the liquid hydrocarbon fuel contains the metal acetylacetonate in an amount of from about 5.0×10 -6 to about 1.0×10 -5 parts by weight per part by weight of fuel.
Claim 18
Dependent Claim
35 words
The method of claim 13 wherein the metal acetylacetonate is selected from the group consisting of nickel propionylacetonate, cobaltous propionylacetonate; cobaltic acetylacetonate, ferric acetylacetonate, cerous propionylacetonate, thorium acetylacetonate, zirconium acetylacetonate, chromic acetylacetonate and aluminum acetylacetonate.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |