US1307562A - Carbon-remover - Google Patents

Description

UNITED STATES PATENT OFFICE.

ABRAHAM LOUIS METZ AND GILBERT O. IBERGERON, OF NEW ORLEANS, LOUISIANA.

' cmon-nnmovnn.

No Drawing.

To all whom it may concern: Be it knownthat we, ABRAHAM L. Mn'rz, and GILBERT O. BERGERON, citizens of the United States, residing at New Orleans, 1 n the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Carbon-Removers, of which the following is a specification.

It is well known that in the operation of internal combustion engines it is necessary periodically to remove the layer or film of carbon which is deposited on the cylinder walls, piston, valves, and spark plug, in order to kee the engine in good running condition. eretofore this has usually been done by removing the cylinder head and scraping off the crust of carbon with a sharp instrument. remove this carbon deposit by introducing into the cylinder a liquid compound which would dislodge the carbon. The compounds thus far proposed'smowever, have been impractical for the purpose, some because they were inefi'ective in dislodging the entire crust of carbon, others because they were too slow to be preferable over the old scraping method, and others because they tended toward a corrosive or other injurious effect upon the metals of the parts with which they came into contact.

It is the object of our invention to pro duce a novel carbon-removing compound which will attack the film of carbon and dislodge it in a very short space of time, more quickly than any compound now known; which will be eificient and thorough in its action and y will leave the coated surface clean and bright; which will not have any corrosive or injurious efi'ect upon the metals; and which requiresno experience or skill to use it properly and effectively.

A further aim of the invention is to produce a carbon remover which is so compounded as to raise the flash-point so as to minimize the danger from imfiammability in handling or storage of the compound.

The deposit of carbon in an engine is due partially to incomplete combustion and partially to the cracking or splitting of the oil It has been proposed to- Specification of Letters Patent. Patented June 24, 1919,

Application filed January 18, 1918. Serial No. 212,482.

(either fuel or lubricating oil or both) which cracking results in the forming of a film of oil about the fine carbon particles and causing them to adhere together and to the exposed surfaces in the combustion chamber. The continuing action forms a coating of gradually increasing thickness which is hardened and compacted by the high temperature and pressure in the combustion chamber.

A compound embodying our invention is a neutral volatile solvent of oils and has a high vapor tension and pressure which becomes greater as the engine is heated. It is highly penetrating and enters the interstices of the carbon layer and permeates the latter and dissolves the molecular film of oil that causes the carbon particles to cohere and to adhere-to the exposed surfaces in the combustion chamber. the action of our compound 'upon the oil film, the carboncrust is reduced to a finely comminu'ted condition and, assisted by the heat in the combustion chamber, is changed into a dry powder of soot-like fineness,-

passages when the engine is op- As a result of i half in volume is preferably an alcoholic .ingredient, the lower alcohols of the paraffin series, such for example, as Wood alcohol or denatured ethyl alcohol. A relatively small amount of acetone or its equivalent is included and also a small quantity of carbontetra-chlorid Or the poly-chloro derivatives of ethylene and ethane, such as tetra-chloroethylene or tetra-chloro-ethane is employed. Carbon-tetra-chlorid is a highly penetrating oil solvent, and it has the further character istic of raising the flash-point of the compound, the ingredients of major quantity, that is, the benzolic and alcoholic ingredients referred to, being of very low flashpoint. By raising the flash-point, the slicetiveness of the compound is not impaired but on the other hand is improved, and at Benzol parts. Wood alcohol 4:0 Acetone 4: Carbon-tetra-chlorid l Naphthyl-methyl-ether or naphthyl ethyl-ether 0. 1 Malachite green A trace. I

Another illustrative compound may com- .prise:

Petroleum ether; 55 parts.

Methyl alcohol 35 Acetone 5 Carbon-tetra-chlorid 2 Naphthyl-methyl-ether or naphthyl-ethyl-ether .0. 1 Malachite green A trace.

Another illustrative compound may comprise: Benzol or petroleum ether 55 parts.

. Denatured ethyl alcohol 4:0 Acetone 4 Carbon-tetra-chlorid 1 Malachite green or naphthol green A trace.

Another illustrative compound may comprise: K

Benzol or petroleum ether 50 parts.

Denatured ethyl alcohol or wood alcohol 40 Acetone 5 Tetra -chloro ethylene or tetra chloro-ethane 4' Naphthyl-methyl-ether or naphthyl-ethyhether 0.1 Malachitegreen A trace.

-We have found by eaperiments that the geroportions of the several in edients may varied somewhat and stil give. the desired results, The specific formula which we have found preferable and most efiicient, however, is the following:

Benzol 55 parts.

In use, a quantity of the compound is introduced into the cylinders of .the engine in any suitable manner as through the pet cook or through the spark plug hole after removing the spark plug, and While this may be done when the engine iscold the action of the compound is expedited if it is introduced when the engine is hot or warm. In a short time the carbon crust will be disintegrated by the liquid and the vapor therefrom, and the engine may then be started up in the usual way. The dislodged carbon will be discharged through the exhaust'passage in the form of fine powder or soot,

- 1eaving the surfaces in the combustion chamber clean and free from incrustation. If it is merely desired to clean the spark plugs, they may be removed from the cylinders and immersed in a quantity of the liquid compound in a receptacle for a short time.

We claim as our invention: 1. A carbon removlng compound comprising a benzolic oil solvent forming about half 7 in volume of the compound, an alcoholic oil solvent forming the major portion of the remaining half in volume of the compound, a relatively small quantity of acetone, a relatively small quantity of carbon ,tetra chlorid, an extremely small quantity of naphthyl-methyl-ether, and an extremely small quantity of malachite green.

1 tone, and a relatively small quantity of car bOn-tetra-Chlorid. 3. A carbon removing com-pound comprismg Benzol, about Q. 55 pal ts.

Wood alcohol, about 40 Acetone, about- 4 Carbon-tetra-chlorid, about 1 Naphthyl-methyl-ethe'r, about--- 0.1 Malachlte green. A trace.

In testimony whereof we have hereunto set our hands. 7

ABRAHAM LOUIS METZ. GILBERT O. BERGERON.

. Gorre ctien in Letters Peten t-Noi 1,307,562.

. It is hereb certified that in Letters Patent No, 1,307,562, granted June 24,1919, upon the application ef Abraham Leuis Metz aiid-Gilbert 0. BergeroniefiNew Orleans, Louisiana, for an improvement in Carbbn-Removers, .an error appears in the printed specification requiring correction as iollowsz Page 2, tnu'd fermula,

after line 43, insert the words end figures, Naphth'yZ-methyZ-ether er? napkthylathyl-ether-OJ part; said that the said Letters Patent should-be read with this correction" therein thet-th'e same may conform te the record of the case in the Patent Qfiiee. r I

Signed and 'sealed this 15th day of July, A. 1)., 1919.

F. WHITEHEAD,

[smihl R.

Acting Omhmissioner of Patents;