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Dowding
Peter Dowding, Oxfordshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20120034829 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a Group II basestock, and respective minor amounts of an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and 5 to 500 mass %, based on the mass of the detergent, of an oil-soluble alkyl-substituted phenol other than a hindered phenol. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 02-09-2012 |
Peter J. Dowding, Oxfordshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20100087347 | Detergent - An overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of less than 2 and a degree of carbonation of 80% or greater is disclosed. The overbased metal hydrocarbyl-substituted hydroxybenzoate detergent reduces asphaltene precipitation or ‘black paint’ in a marine diesel engine. | 04-08-2010 |
Peter J. Dowding, Wantage GB
| Patent application number | Description | Published |
|---|---|---|
| 20090093385 | Lubricating Oil Composition - A lubricating oil composition comprising oil of lubricating viscosity and an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent manufactured in the presence of an amine- or ester-based friction modifier. | 04-09-2009 |
| 20090093386 | Overbased Metal Sulphonate Detergent - An overbased metal sulphonate detergent having incorporated therein at least one friction modifier including at least one amine group. | 04-09-2009 |
| 20090093387 | Lubricating Oil Composition - A lubricating oil composition comprising a Group II basestock and a neutral or overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of less than 2. | 04-09-2009 |
| 20100062957 | Method of Reducing Asphaltene Precipitation in an Engine - A method of reducing asphaltene precipitation or ‘black paint’ in an engine is disclosed. The method includes the step of lubricating the engine with a lubricating oil composition comprising: an oil of lubricating viscosity in a major amount; and, a salicylate detergent system in a minor amount comprising one or more neutral or overbased alkaline earth metal C | 03-11-2010 |
| 20100062958 | Detergent - A detergent including one or more neutral or overbased alkaline earth metal C | 03-11-2010 |