US1820395A - Method and means for removing carbon deposits - Google Patents
Method and means for removing carbon deposits Download PDFInfo
- Publication number
- US1820395A US1820395A US389085A US38908529A US1820395A US 1820395 A US1820395 A US 1820395A US 389085 A US389085 A US 389085A US 38908529 A US38908529 A US 38908529A US 1820395 A US1820395 A US 1820395A
- Authority
- US
- United States
- Prior art keywords
- alcohol
- carbon
- carbon deposits
- internal combustion
- removing carbon
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
Definitions
- This application relates to the removal of carbon deposits from thecombnstion chambers of internal combustion engines, and its principal objects are to employ compounds particularly suitable for this purpose and a process adapted to employ these compounds at their highest eiiiciency. 4
- cyclic alcohols such as the aromatic alcohols including benzyl alcohol and cinnamyl alcohol, the cyclic alcohols such as eyclohexanol and furfuryl alcohol, and the terpene alcohols such as terpineol, which will remove varnish are particularly useful in removing carbon deposits and that the best method of using them is to apply them to carbon coated parts which have been heated preferably to a temperature above 150 F., the optimum conditions for water cooled engines being at approximately the boiling point of water.
- 'We may also use with cyclic alcohols a mixture of benzol and alcohol, or other low boiling varnish remover, which apparently in creases the solvent action of these cyclic alcohols not only by reducing the viscosity, but also because they are lower boiling and tend to keep the liquid in contact with the carbon in a mild state of agitation.
- each cylinder of an ordinary six cylinder engine c. c. of a mixture comprising by volume 40 parts of benzyl alcohol, 30 parts benzol, and 30 parts of ethyl alcohol.
- the engine is operated until the temperature of the metal parts of the combustion chamber is at least 150 F. when the mixture is injected or otherwise introduced into the cylinders and the engine stopped. 'The mixture is permitted to remain in the cylinders for about two hours, more or less, depending upon the nature of the. carbon deposit, during which time the gummy binder is softened or dissolved. Then the engine is started and the loosened deposit is gradually blown out the exhaust.
- a composition of matter for removing carbon deposits from internal combustion engines comprising a cyclic alcohol which is a varnish remover, and a low boiling varnish remover.
- a composition of matter for removing carbon deposits from internal combustion engines comprising an aromatic alcohol which is a varnish remover, and a low boiling varnish remover.
- a composition of matter for removing carbon deposits from internal combustion engines comprising a cyclic alcohol which is a varnish remover, benzol and ethyl alcohol.
- a composition' of matter for removing carbon deposits from internal combustion engines comprising an aromatic alcohol which is a varnish remover, benzol and ethyl alcohol.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
Patented Aug. 25, 1931 UNITED STATES PATENT oFFIc WHEELER G. LOVELL ANDTHOMAS A. BOYD, DETROIT, MICHIGAN, ASSIGNORS TO GENERAL MOTORS RESEARCH CORPORATION, OF. DETROIT, MICHIGAN, A CORPORA- TION or DELAWARE METHOD AND MEANS FOR REMOVING CARBON DEPOSITS No Drawing.
This application relates to the removal of carbon deposits from thecombnstion chambers of internal combustion engines, and its principal objects are to employ compounds particularly suitable for this purpose and a process adapted to employ these compounds at their highest eiiiciency. 4
' \Ve have found that cyclic alcohols such as the aromatic alcohols including benzyl alcohol and cinnamyl alcohol, the cyclic alcohols such as eyclohexanol and furfuryl alcohol, and the terpene alcohols such as terpineol, which will remove varnish are particularly useful in removing carbon deposits and that the best method of using them is to apply them to carbon coated parts which have been heated preferably to a temperature above 150 F., the optimum conditions for water cooled engines being at approximately the boiling point of water.
'We may also use with cyclic alcohols a mixture of benzol and alcohol, or other low boiling varnish remover, which apparently in creases the solvent action of these cyclic alcohols not only by reducing the viscosity, but also because they are lower boiling and tend to keep the liquid in contact with the carbon in a mild state of agitation.
As a specific example we may use in each cylinder of an ordinary six cylinder engine c. c. of a mixture comprising by volume 40 parts of benzyl alcohol, 30 parts benzol, and 30 parts of ethyl alcohol. The engine is operated until the temperature of the metal parts of the combustion chamber is at least 150 F. when the mixture is injected or otherwise introduced into the cylinders and the engine stopped. 'The mixture is permitted to remain in the cylinders for about two hours, more or less, depending upon the nature of the. carbon deposit, during which time the gummy binder is softened or dissolved. Then the engine is started and the loosened deposit is gradually blown out the exhaust.
When cleaning the parts by hand they may be heated, the solvent applied, and when the biiinder is softened the deposit may be wiped o It is within thescope of the present inven- Application filed August 28, 1929. Serial No. 389,085.
tion to employ any cyclic alcohol which is a varnish remover and to vary the proportions acccording to the compound used and the specific conditions, and the cyclic alcohol may be used alone.
We claim 2- 1. The process of removing carbon deposits from thecombustion chamber of an internal combustion engine which comprises applying to the carbon deposit benzyl alcohol, and removing the carbon deposit.
3. The process of removing carbon deposits from the combustion chamber of an internal combustion engine which comprises heating the coated parts, applying to the carbon deposit a cyclic alcohol which is a varnish remover, and a low boiling varnish remover, and removing the carbon deposit.
4. The process of removing carbon deposits from the combustion chamber-of an internal combustion engine which comprises heating the coated parts to above 150 F applying to the carbon deposit a cyclic alcohol which is a varnish remover, benzol and alcohol, and removing the carbon deposit.
5. The process of removing carbon deposits from the combustion chamber of an internal combustion engine which comprises applying'to the carbon deposit an aromatic alcohol which is a varnish remover, and removing the carbon deposit.
6. The process of removing carbon deposits from the combustion chamber of an internal combustion engine which comprises heating the coated parts, applying to the carbon deposit an aromatic alcohol which is a varnish removed, and a low boiling varnish remover, and removing the carbon deposlt;
7. The process of removing carbon deposits from the combustion chamber of an internal combustion engine which comprises heating the coated parts to above 150 F., applying to the carbon deposit an aromatic alcohol which is a varnish remover, benzol and alcohol, and removing the carbon deposit.
8. The process of removing carbon deposits from the combustion chamber of an internal combustion engine which comprises heating the coated parts, applying to the carbon deposit benzyl alcohol, and. benzol and alcohol, and removing the carbon deposit.
9. A composition of matter for removing carbon deposits from internal combustion engines comprising a cyclic alcohol which is a varnish remover, and a low boiling varnish remover.
10. A composition of matter for removing carbon deposits from internal combustion engines comprising an aromatic alcohol which is a varnish remover, and a low boiling varnish remover.
1 1. A composition of matter for removing carbon deposits from internal combustion engines comprising a cyclic alcohol which is a varnish remover, benzol and ethyl alcohol.
12. A composition' of matter for removing carbon deposits from internal combustion engines comprising an aromatic alcohol which is a varnish remover, benzol and ethyl alcohol.
carbon deposits from internal combustion engines comprising benzyl alcohol, benzol and ethyl alcohol.
14. The process of removing carbon deosits from the combustion chamber of an internal combustion engine which comprises applying to the carbon deposit furfuryl alcohol, and removing the carbon deposit.
In testimony whereof We affix our-signatures.
THOMAS A. BOYD.
13. A composition of matter for removing WHEELER G. LOVELL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US389085A US1820395A (en) | 1929-08-28 | 1929-08-28 | Method and means for removing carbon deposits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US389085A US1820395A (en) | 1929-08-28 | 1929-08-28 | Method and means for removing carbon deposits |
Publications (1)
Publication Number | Publication Date |
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US1820395A true US1820395A (en) | 1931-08-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US389085A Expired - Lifetime US1820395A (en) | 1929-08-28 | 1929-08-28 | Method and means for removing carbon deposits |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672450A (en) * | 1950-06-28 | 1954-03-16 | Gen Motors Corp | Composition for removing adherent deposits from internal-combustion engines |
US3925031A (en) * | 1970-07-23 | 1975-12-09 | Eugenio G Villacampa | Fuel and oil additive |
WO1983002624A1 (en) * | 1982-01-22 | 1983-08-04 | Western Electric Co | Detergent cleaning composition |
WO1989002910A1 (en) * | 1987-09-24 | 1989-04-06 | Callanan, Mary, M. | Catalytically enhanced combustion process |
US5116390A (en) * | 1986-08-21 | 1992-05-26 | Carlos Rodriguez | Catalytically enhanced combustion process |
US5324363A (en) * | 1992-07-20 | 1994-06-28 | Exxon Research And Engineering Company | Method for carbonaceous deposit removal and for reducing engine octane requirement using an aqueous base |
US5990062A (en) * | 1997-12-19 | 1999-11-23 | Gage Products Company | Low toxicity paint stripper |
-
1929
- 1929-08-28 US US389085A patent/US1820395A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672450A (en) * | 1950-06-28 | 1954-03-16 | Gen Motors Corp | Composition for removing adherent deposits from internal-combustion engines |
US3925031A (en) * | 1970-07-23 | 1975-12-09 | Eugenio G Villacampa | Fuel and oil additive |
WO1983002624A1 (en) * | 1982-01-22 | 1983-08-04 | Western Electric Co | Detergent cleaning composition |
US4600522A (en) * | 1982-01-22 | 1986-07-15 | At&T Technologies, Inc. | Detergent cleaning composition |
US5116390A (en) * | 1986-08-21 | 1992-05-26 | Carlos Rodriguez | Catalytically enhanced combustion process |
WO1989002910A1 (en) * | 1987-09-24 | 1989-04-06 | Callanan, Mary, M. | Catalytically enhanced combustion process |
US5324363A (en) * | 1992-07-20 | 1994-06-28 | Exxon Research And Engineering Company | Method for carbonaceous deposit removal and for reducing engine octane requirement using an aqueous base |
US5990062A (en) * | 1997-12-19 | 1999-11-23 | Gage Products Company | Low toxicity paint stripper |
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