US4227889A
Expired / Lapsed
US
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Compression ignition fuels for use in diesel engine having anti-wear properties
Assignee: Ethyl Corp
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Filing: 1978-12-26
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Granted: 1980-10-14
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Expires: 1998-12-26
Abstract
Abstract An anti-wear compression ignition fuel composition for use in diesel engines comprising (1) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1-5 carbon atoms, (2) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range, and (3) a wear inhibiting amount of a dimerized unsaturated fatty acid. Optionally, said fuel composition may also contain an ignition accelerator such as an organic nitrate.
Inventors
- 👤 Warren L. Perilstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:32
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/02; C10L1/026; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/22; C10L1/23; C10L1/231; F; F02; F02B; F02B3/00; F02B3/06; Y; Y02; Y02E; Y02E50/00; Y02E50/10
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
77 words
As a new composition of matter, an anti-wear compression ignition fuel composition for use in diesel engines comprising (1) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range, and (3) a wear inhibiting amount of a dimerized unsaturated fatty acid.
Claim 2
Dependent Claim
77 words
As a new composition of matter, an anti-wear compression ignition fuel composition for use in diesel engines comprising (1) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range, and (3) a wear inhibiting amount of a dimerized unsaturated fatty acid.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said monohydroxy alkanol is ethanol.
Claim 4
Dependent Claim
19 words
The composition of claim 1 wherein said dimerized unsaturated fatty acid is the dimer acid derived from linoleic acid.
Claim 5
Dependent Claim
25 words
The composition of claim 1 containing as an ignition accelerator a substituted or unsubstituted alkyl or cycloalkyl nitrate having up to about 10 carbon atoms.
Claim 6
Dependent Claim
33 words
The composition of claim 4 wherein said ignition accelerator is selected from methyl nitrate, ethyl nitrate, propyl nitrate, amyl nitrates, hexyl nitrates or a mixture of primary amyl nitrates and primary hexyl nitrates.
Claim 7
Dependent Claim
12 words
The composition of claim 5 wherein said ignition accelerator is ethyl nitrate.
Claim 8
Dependent Claim
11 words
The composition of claim 5 wherein said monohydroxy alkanol is ethanol.
Claim 9
Dependent Claim
18 words
The composition of claim 7 wherein said dimerized unsaturated fatty acid is the dimer derived from linoleic acid.
Claim 10
Dependent Claim
44 words
The composition of claim 8 containing from about 0.05 weight percent to about 2.0 weight percent dimer acid derived from linoleic acid and from about 0.5 weight percent to about 5.0 weight percent ignition accelerator based on the total weight of the said composition.
Claim 11
Independent Claim
144 words
A method for inhibiting engine wear in an internal combustion reciprocating diesel engine operating on a compression ignition fuel comprising (1) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms (2) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range, and (3) a wear inhibiting amount of a dimerized unsaturated fatty acid, said method comprising (a) supplying to the fuel induction system of said engine said compression ignition fuel, (b) inducting air into the combustion chambers of said engine (c) compressing said air, (d) injecting said compression ignition fuel into said combustion chambers containing said compressed air, (e) igniting said compressed mixture, and (f) exhausting the resultant combustion products resulting in reduced engine wear in said engine.
Claim 12
Independent Claim
144 words
A method for inhibiting engine wear in an internal combustion reciprocating diesel engine operating on a compression ignition fuel comprising (1) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms (2) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range, and (3) a wear inhibiting amount of a dimerized unsaturated fatty acid, said method comprising (a) supplying to the fuel induction system of said engine said compression ignition fuel, (b) inducting air into the combustion chambers of said engine (c) compressing said air, (d) injecting said compression ignition fuel into said combustion chambers containing said compressed air, (e) igniting said compressed mixture, and (f) exhausting the resultant combustion products resulting in reduced engine wear in said engine.
Claim 13
Dependent Claim
11 words
The method of claim 10 wherein said monohydroxy alkanol is ethanol.
Claim 14
Dependent Claim
19 words
The method of claim 10 wherein said dimerized unsaturated fatty acid is the dimer acid derived from linoleic acid.
Claim 15
Dependent Claim
29 words
The method of claim 10 wherein said fuel composition contains as an ignition accelerator a substituted or unsubstituted alkyl or cycloalkyl nitrate having up to about 10 carbon atoms.
Claim 16
Dependent Claim
33 words
The method of claim 13 wherein said ignition accelerator is selected from methyl nitrate, ethyl nitrate, propyl nitrate, amyl nitrates, hexyl nitrates or a mixture of primary amyl nitrate and primary hexyl nitrates.
Claim 17
Dependent Claim
12 words
The method of claim 14 wherein said ignition accelerator is ethyl nitrate.
Claim 18
Dependent Claim
11 words
The method of claim 14 wherein said monohydroxy alkanol is ethanol.
Claim 19
Dependent Claim
19 words
The method of claim 16 wherein said dimerized unsaturated fatty acid is the dimer acid derived from linoleic acid.
Claim 20
Dependent Claim
54 words
The method of claim 17 wherein said ignition accelerator is present in an amount of from about 0.5 weight percent to about 5.0 weight percent and said dimer acid derived from linoleic acid is present in an amount from about 0.05 to about 2.0 weight percent based on the total weight of said composition.
Claim 21
Independent Claim
80 words
A method for preparing a compression ignition fuel adapted for use in diesel engines having anti-wear properties which comprises blending (1) a wear inhibiting amount of a dimerized unsaturated fatty acid, with (2) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms, and (3) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range.
Claim 22
Independent Claim
80 words
A method for preparing a compression ignition fuel adapted for use in diesel engines having anti-wear properties which comprises blending (1) a wear inhibiting amount of a dimerized unsaturated fatty acid, with (2) from about 70 percent by weight to about 98.45 percent by weight of a monohydroxy alkanol having from 1 to 5 carbon atoms, and (3) from about 1 percent by weight to about 25 percent by weight of a fuel oil boiling above the gasoline boiling range.
Claim 23
Dependent Claim
11 words
The method of claim 19 wherein said monohydroxy alkanol is ethanol.
Claim 24
Dependent Claim
19 words
The method of claim 19 wherein said dimerized unsaturated fatty acid is the dimer acid derived from linoleic acid.
Claim 25
Dependent Claim
32 words
The method of claim 19 wherein an ignition accelerator comprising a substituted or unsubstituted alkyl and cycloalkyl nitrate having up to about 10 carbon atoms is blended with said compression ignition fuel.
Claim 26
Dependent Claim
33 words
The method of claim 22 wherein said ignition accelerator is selected from methyl nitrate, ethyl nitrate, propyl nitrate, amyl nitrates, hexyl nitrates or a mixture of primary amyl nitrates and primary hexyl nitrates.
Claim 27
Dependent Claim
12 words
The method of claim 23 wherein said ignition accelerator is ethyl nitrate.
Claim 28
Dependent Claim
11 words
The method of claim 23 wherein said monohydroxy alkanol is ethanol.
Claim 29
Dependent Claim
18 words
The method of claim 25 wherein said dimerized unsaturated fatty acid is the dimer derived from linoleic acid.
Claim 30
Dependent Claim
52 words
The method of claim 26 wherein said ignition accelerator is present in an amount of from about 0.5 weight percent and said dimer acid derived from linoleic acid is present in an amount of from about 0.05 weight percent to about 2.0 weight percent based on the total weight of said composition.
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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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |