This invention relates to a fuel filter for use with internal combustion engines. The fuel filter includes a fuel additive that can be released into fuel. The rate of release for the fuel can be controlled. In one form the fuel additive can be mixed with a matrix material and released at a substantially constant rate to maintain a uniform level of fuel additive in the fuel. Use of the present invention provides a fuel filter having an extended life span that is longer than fuel filters typically used with combustion engines.

Fuel filter including slow release additive

A container (1) for releasing a chemical additive (7) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing (3) having a hollow interior and an additive composition (7) comprising at least one fluid material-soluble additive. The additive (7) is held within the container (1) by a least one fluid material-permeable element (11) provided at or near an opening (13) in the casing (1) and is effective to provide for release of additive(s) (7) into the fluid material. Methods of releasing additives (7) into fluid material are also provided.

Controlled release of additives in fluid systems

A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as an oil thereby serving as a lubricant fluid such as an oil thereby.

Slow release lubricant additives gel

A container for releasing a chemical additive into a fuel composition comprises a fuel-impermeable casing having a hollow interior and an additive composition comprising at least one fuel soluble additive. The additive is held within the container by at least one fuel-permeable element provided at or near an opening in the casing and is effective to provide for release of additive(s) into the fuel composition. Methods of releasing additives into fuel compositions are also provided.

Controlled release additives in fuel systems

A fuel additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel, the sustained release component is (1) a polymeric material, (2) substantially insoluble in the fuel, and (3) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the sustained release component.

Fuel additive compositions

A device for direct addition of solid additives to fuels for internal combustion engines. In order to ensure a concentration of the solid additive in the fuel which is as constant as possible, the device has a cartridge at least partially filled with the solid additives and at least partially permeable to the fuel. The cartridge is located in a portion of the filling neck of a fuel tank.

Device for adding additives to liquid fuels

A device as described for direct addition of additive solids to liquid fuels, which solids are soluble in the fuel. For adding solids to fuel directly in the line leading to the combustion chamber or engine, the device includes a hollow body at least partially filled with the solid, whose lengthwise axis is at an angle α of 130° to 170° to the inflowing fuel and whose lower end, irrigated by inflowing fuel, has at least one opening through which the fuel can enter and leave the hollow body.

Device for adding additives to liquid fuels in the fuel stream

A process for reducing carbonaceous deposits caused by the combustion of heavy fuel oil in high-compression, spontaneous-ignition internal combustion engines involves adding an additive such as ferrocene or ethyl ferrocene to a heavy fuel oil having a density of 0.9 to 1.01 kg/dm 3 in an amount of 1 to 100 ppm prior to combustion of the fuel oil and combusting the fuel oil in the high-compression, spontaneous-ignition internal combustion engine. The additive is dissolved in the heavy fuel oil.

Use of ferrocene

The invention relates to a pumpable paste as an additive for liquid fuels with fuel-soluble additives bonded into the paste and an addition process. It is thereby possible to insert the additive for any fuel not during its production or delivery nor even when it is finally supplied, but only direclty into the inlet pipe to the combustion chamber or engine in easily and properly metered quantities.

Pumpable paste as an additive for liquid fuels

An iron-organic composition for decreasing regeneration temperature of particulate filter in exhaust system of combustion system comprises iron-organic compound(s) and diluent or carrier. An iron-organic composition for decreasing regeneration temperature of particulate filter in exhaust system of combustion system comprises iron-organic compound(s) of formula (I) and diluent or carrier. R1, R2 = H, 1-19C hydrocarbyl, or group of formula (II). Q = bond or hydrocarbyl group; R3 = H or 1-18C hydrocarbyl; A, B = unsaturated cyclic hydrocarbyl group; and n = 0-10. Independent claims are also included for: (1) a fuel additive dosing apparatus comprising supply container formed from plastic material incompatible with aromatic diluent or carrier, and iron-organic composition contained in supply container comprising at least 1 compound of formula (I); (2) a fuel composition comprising fuel and compound of formula (I); and (3) a method of regenerating particulate filter located in exhaust system of combustion system for fuel comprising contacting carbon-based particulates with combustion products of iron-organic composition.

Iron-organic composition for decreasing regeneration temperature of particulate filter in exhaust system of combustion system comprises iron-organic compound(s) and diluent or carrier

Arnim Marschewski

Papers

Device for adding additives to liquid fuels

Device for adding additives to liquid fuels in the fuel stream

Use of ferrocene

Pumpable paste as an additive for liquid fuels

Iron-organic composition for decreasing regeneration temperature of particulate filter in exhaust system of combustion system comprises iron-organic compound(s) and diluent or carrier