The Lubrizol Corporation

A.p. Moller-Maersk A/s

A.p. Moeller-maersk/as

Klaus-Werner Damm

Frederick P Boyle

Gary A Garvin

Herman F George

Giuseppe Natoli

Daniel H Heath

Peter John Moore

Jørn Dragsted

Claus Martin Olesen

Giulio Giovanni Pometto

Terence Edward Robinson

Hans Heinrich Petersen

Alfio Bonciolini

Dale Hicks

Richard M Lange

Barton J Schober

Daniel C Visger

Gary L Orloff

Niels-Henrik Lindegaard

Fredrick P Boyle

A method and system to reduce fuel consumption and environmental impact in a two-stroke engine. Fresh system oil having a TBN less than 10 is provided and used in the two-stroke engine to produce partially used system oil. The partially used system oil is withdrawn from the two stroke engine and at least one friction modifier is added to at least some of the withdrawn partially used system oil, wherein the addition of the at least one friction modifier reduces the friction coefficient of the withdrawn system oil, resulting in a system oil having reduced friction. The system oil with reduced friction is combined with partially used system oil remaining in said two-stroke and the combined system oil is used to lubricate pistons of said two-stroke engine.

Method and system for improving fuel economy and environmental impact operating a 2-stroke engine

A method and system of creating a cylinder oil having a target TBN ranging from 40 to 70 for use in a two-stroke en line. Fresh system oil having a TBN less than 10 is provided. The fresh system oil is used in the two-stroke engine to product partially used system oil. An initial fluid containing at least some partially used system oil is provided. A first TBN of the initial fluid is determined. Cylinder oil having the target TBN is created by blending the initial fluid having the first TBN with at least one suited additive. The cylinder oil is provided to the two-stroke engine.

Method and system for modifying a used hydrocarbon fluid to create a cylinder oil

A lubrication system for supplying a portion of the engine lubricant to one or more gear devices driven thereby and return to the engine independent of whether the gear devices are being driven at the time. Thus even when the engine is idling engine lubricant is circulated through the gear devices to maintain the temperature of the lubricant circulating through the gear devices within a relatively narrow temperature range. Also, the lubricant level within the gear devices will be maintained without the need for inspection of the gear devices as long as the engine lubricant level is regularly checked and maintained either manually or automatically. Further, by changing the engine lubricant at regular service intervals or using an automated lubricant change system, the quality and level of the lubricant in the gear devices is also maintained.

Combination lubrication system for an internal combustion engine and associated gear devices

A viscometer for sensing or characterizing the stress required to shear a fluid at a given rate includes a pair of members coaxially mounted for relative rotation. Between the members is an annular gap defining a flow path for the fluid. The flow path is configured such that during differential rotation of the members, fluid is caused to flow through the annular gap that is a function of the differential rotation and the viscosity of the fluid. A sensor measures the torque or torque equivalent required to achieve such differential rotation between the members.

On-board rotational viscometers

A block copolymer of a hydrophobic block of one or more hydrophobic monomers and a hydrophilic block of one or more hydrophilic monomers is prepared by polymerizing a hydrophobic monomer to prepare the hydrophobic block, using a free radical polymerization process using a stable free radical agent, preserving a stabilized active polymerization site on the hydrophobic block; adding a hydrophilic monomer to the stabilized active hydrophobic block; and further reacting the mixture to effect polymerization of the hydrophilic monomer. The polymerization of the hydrophilic monomer is conducted in an amidic solvent in which the hydrophobic block and the hydrophilic monomer are soluble.

Block copolymer surfactants prepared by stabilized free-radical

A system for measuring the quality and level of lubricant in an engine lubricant reservoir includes a valve for selectively directing a portion of lubricant from the engine through a first conduit for return to the engine or through a second conduit for removal from the engine. Within the first conduit are one or more sensors for sensing the condition of the lubricant passing through the first conduit. The sensors are monitored by a controller which is operative selectively to cause the valve to block the flow of lubricant through the first conduit and direct a portion of the lubricant through the second conduit based on the monitored conditions of the lubricant. Also, the controller directs a supply of fresh lubricant to the engine in response to the lubricant in the engine lubricant reservoir dropping below a predetermined level. The lubricant flowing through the second conduit may either be stored in a lubricant reservoir and if desired subsequently intermittently mixed with the fuel in the fuel tank, or caused to flow directly to the fuel tank on command of the valve by the controller which limits the amount of lubricant that can be added to the fuel tank so as not to exceed a predetermined lubricant/fuel ratio for the engine.

System for maintaining the quality and level of lubricant in an engine

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Chagrin Falls, OH, United States of America

Klaus-Werner Damm