US1575441A - Method and means for using low-compression fuels - Google Patents
Method and means for using low-compression fuels Download PDFInfo
- Publication number
- US1575441A US1575441A US663499A US66349923A US1575441A US 1575441 A US1575441 A US 1575441A US 663499 A US663499 A US 663499A US 66349923 A US66349923 A US 66349923A US 1575441 A US1575441 A US 1575441A
- Authority
- US
- United States
- Prior art keywords
- fuel
- compression
- low
- cadmium
- fuels
- Prior art date
- 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
Links
- 239000000446 fuel Substances 0.000 title description 20
- 238000007906 compression Methods 0.000 title description 17
- 238000000034 method Methods 0.000 title description 4
- 230000006835 compression Effects 0.000 description 14
- 239000000203 mixture Substances 0.000 description 6
- 229940065285 cadmium compound Drugs 0.000 description 5
- 150000001662 cadmium compounds Chemical class 0.000 description 5
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- -1 alkyl compound Chemical class 0.000 description 2
- VQNPSCRXHSIJTH-UHFFFAOYSA-N cadmium(2+);carbanide Chemical compound [CH3-].[CH3-].[Cd+2] VQNPSCRXHSIJTH-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
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
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/30—Organic compounds compounds not mentioned before (complexes)
- C10L1/305—Organic compounds compounds not mentioned before (complexes) organo-metallic compounds (containing a metal to carbon bond)
Definitions
- This invention relates to the art of suppressing a fuel knock when a combustible gaseous mixture containing a low compression fuel such, for example, as kerosene and gasoline is burned under a relatively high pressure.
- the principal objects of this invention are to employ cadmium compounds to suppress the fuel knock.
- Kerosene has a critical compression pressure of about pounds.
- the critical com-. pression pressure of gasoline varies from about pounds for the commoner forms now marketed to about 125 pounds for aviation gasoline employed in airplane engines. These fuels are termed low compression fuels. When the vapors of any one of them is mixed with air, compressed to a compression pressure in excess of the normal critical compression pressure of the fuel, and burned, as in an internal-combustion engine, a fuel knock is produced.
- I dissolve 200 grams of dimethyl cadmium Ca(CI-I in 1 gallon of gasoline having a critical compression pressure of about 75 pounds.
- This solution or high compression fuel is fed through a carburetor into the cylinder of an internalcombustion engine having a compression pressure of about 100 pounds, the solution METHOD AND MEANS FOR USING LOW-COMPRESSION FUELS.
- Blending agents may be employed if the cadmium compound does not dissolve readily in the fuel.
- the compound may be added to the fuel-air mixture just before the latter is burned.
- a composition of matter comprising a low compression fuel; and a volatile cadmium compound .incorporated therein and adapted to increase the critical compression pressure of the fuel.
- a composition of matter comprising a low compression fuel, such as kerosene or gasoline; and a volatile alkyl compound of cadmium incorporated homogeneously therein and adapted to increase the critical com pression pressure of the fuel.
- a low compression fuel such as kerosene or gasoline
- a volatile alkyl compound of cadmium incorporated homogeneously therein and adapted to increase the critical com pression pressure of the fuel.
- composition of matter comprising a low compression fuel; and a volatile methyl compound of cadmium incorporated therein.
- a composition of matter comprising gasoline; and dimethyl cadmium.
Description
Patented Mar. 2, 1926.
UNITED STATES PATENT OFFICE.
THOMAS MIDGLEY, .13., OF DAYTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO GENERAL MOTORS CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE.
No Drawing. Application filed September To all whom it may concern:
Be it known that I, THOMAS MIDGLEY, Jr., a citizen of the United States of America, residing at Dayton, county of Montgomery, and State of Ohio, have invented certain new and useful Improvements in Methods and Means for U sing Low-Compression Fuels, of which the following is a full, clear, and exact description.
This invention relates to the art of suppressing a fuel knock when a combustible gaseous mixture containing a low compression fuel such, for example, as kerosene and gasoline is burned under a relatively high pressure. The principal objects of this invention are to employ cadmium compounds to suppress the fuel knock.
Kerosene has a critical compression pressure of about pounds. The critical com-. pression pressure of gasoline varies from about pounds for the commoner forms now marketed to about 125 pounds for aviation gasoline employed in airplane engines. These fuels are termed low compression fuels. When the vapors of any one of them is mixed with air, compressed to a compression pressure in excess of the normal critical compression pressure of the fuel, and burned, as in an internal-combustion engine, a fuel knock is produced.
I have-found that vapors of cadmium compound added to the fuel-air mixture suppress this fuel knock and permit an increase in the engine compression pressure with a normal burning characteristic of the fuel.
By way of an example of one method of carrying out my invention, I dissolve 200 grams of dimethyl cadmium Ca(CI-I in 1 gallon of gasoline having a critical compression pressure of about 75 pounds. This solution or high compression fuel is fed through a carburetor into the cylinder of an internalcombustion engine having a compression pressure of about 100 pounds, the solution METHOD AND MEANS FOR USING LOW-COMPRESSION FUELS.
18, 1923. Serial No. 663,499.
being vaporized and mixed with air as isare other alkyl compounds including diethyl' cadmium.
I prefer to employ the cadmium compounds whieh are soluble in the fuel to promote the mixing of the two. Blending agents may be employed if the cadmium compound does not dissolve readily in the fuel. The compound may be added to the fuel-air mixture just before the latter is burned.
I claim: A
1. A composition of matter comprising a low compression fuel; and a volatile cadmium compound .incorporated therein and adapted to increase the critical compression pressure of the fuel.
2. A composition of matter comprising a low compression fuel, such as kerosene or gasoline; and a volatile alkyl compound of cadmium incorporated homogeneously therein and adapted to increase the critical com pression pressure of the fuel.
3. A, composition of matter comprising a low compression fuel; and a volatile methyl compound of cadmium incorporated therein.
4. A composition of matter comprising gasoline; and dimethyl cadmium.
In testimony whereof I hereto ailix my signature.
THOMAS MIDGLEY, J n. i
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US663499A US1575441A (en) | 1923-09-18 | 1923-09-18 | Method and means for using low-compression fuels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US663499A US1575441A (en) | 1923-09-18 | 1923-09-18 | Method and means for using low-compression fuels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1575441A true US1575441A (en) | 1926-03-02 |
Family
ID=24662065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US663499A Expired - Lifetime US1575441A (en) | 1923-09-18 | 1923-09-18 | Method and means for using low-compression fuels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1575441A (en) |
-
1923
- 1923-09-18 US US663499A patent/US1575441A/en not_active Expired - Lifetime
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