Renewable fuel/lubricant mixture for use in a two-stroke internal combustion engine

a technology of internal combustion engine and lubricant mixture, which is applied in the direction of lubricant composition, liquid carbonaceous fuel, fuel, etc., can solve the problems of increased horsepower at the price of increased concentration of pollutants in the exhaust gas, mtbe is a suspected hazard to human health, and unused fuel, lubricant, and lubricant are released in the exhaust stream

Active Publication Date: 2007-03-15
MISSISSIPPI STATE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, this increase in horsepower comes at the price of increased concentrations of pollutants in the exhaust gases.
This type of operation results in unused fuel, lubricant, and carbon monoxide being released in the exhaust stream into the atmosphere.
MTBE is a suspected hazard to human health and is water-soluble and therefore poses a threat to water sources.
This problem tends to worsen as the engine ages.
Although two-stroke engines produce more horsepower, they are significantly less efficient than four-stroke engines in terms of fuel efficiency, and they release greater amounts of environmental pollutants.
Unfortunately, gasoline/ethanol fuel c

Method used

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  • Renewable fuel/lubricant mixture for use in a two-stroke internal combustion engine

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Embodiment Construction

[0010] Provided is a fuel / lubricant formulation for the operation of two-stroke engines with improved emissions and performance. The fuel mixture is comprised primarily of a fuel and a lubricant. Both the fuel and lubricant are completely renewable and environmentally friendly. The fuel component of this mixture may include alcohols, ethers, ketones, gasoline, alcohol / gasoline blended fuels, nitromethane, or any combination of these fuels while the lubricant portion of the mixture includes one or more lipids, biodiesel, fatty acid alkyl esters, free fatty acids, or any combination thereof.

[0011] The composition of the lubricating fuel to be used in the engine may range from 40% to less than 100% by weight of alcohols, ethers, ketones, alcohol / gasoline blended fuels, gasoline, nitromethane, or any combination of these fuels and greater than zero to 60% by weight lipids, biodiesel, fatty acid alkyl esters, free fatty acids, or any combination thereof. These fuel / lubricant mixtures ma...

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PUM

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Abstract

A method is provided, which includes operating a two-stroke engine with a lubricating fuel, the lubricating fuel including at least one fuel selected from the group including C1-6 alcohol, gasoline, ether, ketone, nitromethane, and a mixture thereof, and at least one lubricant selected from the group including biodiesel, lipid, fatty acid alkyl ester, fatty acid, and a mixture thereof. Lubricating fuel compositions are also provided.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is based on, and claims priority to, U.S. Provisional Application Ser. No. 60 / 660,330, filed Mar. 11, 2005, the entire contents of which are hereby incorporated by reference.BACKGROUND [0002] 1. Field [0003] The invention relates to lubricating fuels, their preparation, and their use. [0004] 2. Discussion of the Background [0005] A wide variety of equipment is powered by two-stroke internal combustion engines such as leaf blowers, string trimmers, outboard motors, watercraft, motorcycles, chain saws, lawnmowers, snowmobiles, etc. The main reason for their wide application is their high ratio of horsepower to weight. The reason for the increased horsepower is that two-stroke motors ignite on every stroke of the engine unlike four-stroke engines that ignite fuel every other stroke. Another advantage to two-stroke engines over four-stroke engines is 2-stroke engines require less valves and as a consequence are much simpler...

Claims

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Application Information

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IPC IPC(8): C10L1/18
CPCC10L1/02C10N2240/105C10L1/18C10L1/1802C10L1/1881C10L1/19C10L1/191C10L1/2641C10L10/02C10L10/08C10M101/04C10M105/24C10M105/34C10M129/40C10M129/70C10M2207/126C10M2207/281C10M2207/2815C10M2207/283C10M2207/2835C10M2207/289C10M2207/2895C10M2207/40C10M2207/401C10M2223/10C10L1/14C10N2040/26
Inventor FRENCH, WILLIAM TODDTATE, LARRY CHRISTOPHERZAPPI, MARK E.HERNANDEZ, RAFAEL A.
Owner MISSISSIPPI STATE UNIVERSITY
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