US4248182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-wear additives in diesel fuels
Assignee: Ethyl Corp
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Filing: 1979-09-04
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Granted: 1981-02-03
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Expires: 1999-09-04
Abstract
Abstract An anti-wear compression ignition fuel for use in diesel engines comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, and (2) a wear inhibiting amount of a C 8 to C 20 aliphatic monocarboxylic acid. Optionally, said fuel composition may also contain an ignition accelerator such as an organic nitrate.
Inventors
- 👤 Robert E. Malec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:14
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/188; C10L1/1881; C10L1/22; C10L1/23; C10L1/231; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
48 words
As a new composition of matter, an anti-wear compression ignition fuel for use in diesel engines comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) an ignition accelerator, and (3) a wear inhibiting amount of a C 8 to C 20 aliphatic monocarboxylic acid.
Claim 2
Dependent Claim
48 words
As a new composition of matter, an anti-wear compression ignition fuel for use in diesel engines comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) an ignition accelerator, and (3) a wear inhibiting amount of a C 8 to C 20 aliphatic monocarboxylic acid.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said monohydroxy alkanol is ethanol.
Claim 4
Dependent Claim
24 words
The composition of claim 1 wherein said ignition accelerator is a substituted or unsubstituted alkyl or cycloalkyl nitrate having up to ten carbon atoms.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein said acid is oleic acid.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein said acid is linoleic acid.
Claim 7
Dependent Claim
33 words
The composition of claim 2 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 8
Dependent Claim
12 words
The composition of claim 6 wherein said ignition accelerator is ethyl nitrate.
Claim 9
Dependent Claim
11 words
The composition of claim 6 wherein said acid is oleic acid.
Claim 10
Dependent Claim
11 words
The composition of claim 6 wherein said acid is linoleic acid.
Claim 11
Dependent Claim
35 words
The composition of claim 8 containing from about 0.1 to about 10.0 weight percent ignition accelerator and from about 0.01 to about 2.0 weight percent oleic acid based on the total weight of said composition.
Claim 12
Dependent Claim
27 words
The composition of claim 9 containing from about 0.1 to about 10.0 weight percent ignition accelerator and from about 0.01 to about 2.0 weight percent linoleic acid.
Claim 13
Independent Claim
116 words
A method for inhibiting engine wear in an internal combustion reciprocating diesel engine operating on a compression ignition fuel comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) an ignition accelerator, and (3) a wear inhibiting amount of a C 8 to C 20 aliphatic monocarboxylic acid, said method comprising (a) supplying to the fuel induction system of said engine said compression ignition fuel, (b) inducting air into the conbustion 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 14
Independent Claim
116 words
A method for inhibiting engine wear in an internal combustion reciprocating diesel engine operating on a compression ignition fuel comprising (1) a monohydroxy alkanol having from 1 to 5 carbon atoms, (2) an ignition accelerator, and (3) a wear inhibiting amount of a C 8 to C 20 aliphatic monocarboxylic acid, said method comprising (a) supplying to the fuel induction system of said engine said compression ignition fuel, (b) inducting air into the conbustion 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 15
Dependent Claim
11 words
The method of claim 12 wherein said monohydroxy alkanol is ethanol.
Claim 16
Dependent Claim
24 words
The method of claim 12 wherein said ignition accelerator is a substituted or unsubstitued alkyl or cycloalkyl nitrate having up to ten carbon atoms.
Claim 17
Dependent Claim
11 words
The method of claim 12 wherein said acid is oleic acid.
Claim 18
Dependent Claim
10 words
The method of claim 12 wherein said acid islinoleic acid.
Claim 19
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 nitrates and primary hexyl nitrates.
Claim 20
Dependent Claim
12 words
The method of claim 17 wherein said ignition accelerator is ethyl nitrate.
Claim 21
Dependent Claim
11 words
The method of claim 17 wherein said acid is oleic acid.
Claim 22
Dependent Claim
11 words
The method of claim 17 wherein said acid is linoleic acid.
Claim 23
Dependent Claim
59 words
The method of claim 19 wherein said ignition accelerator is present in an amount of from about 0.1 weight percent to about 10.0 weight percent based on the total weight of said composition and said oleic acid is present in an amount of from about 0.01 to about 2.0 weight percent based on the total weight of the composition.
Claim 24
Dependent Claim
58 words
The method of claim 20 wherein said ignition accelerator is present in an amount of from about 0.1 weight percent to about 10.0 weight percent based on the total weight of said composition and said linoleic acid is present in an amount of from about 0.01 to about 2.0 weight percent based on the weight of said composition.
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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |