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

An environmental impact, engine technology, applied in the direction of engine lubrication, engine components, machines/engines, etc., can solve the problem of no two-stroke diesel engine, etc., and achieve the effect of reduced maintenance frequency, reduced emissions, and reduced friction

Active Publication Date: 2008-01-30
A P MOLLER AS
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  • Abstract
  • Description
  • Claims
  • Application Information

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But there is no suggestion in it how to use it for a 2-stroke diesel engine

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

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Embodiment Construction

[0054] Figure 1 shows a schematic flow diagram of one embodiment of the present invention. Shown is a schematic representation of at least one two-stroke crosshead diesel engine (300). The engine comprises a lubricating system comprising a so-called system oil (301), which is generally used for lubricating and cooling engine bearings and eg oil-cooled pistons and for actuation and / or control of various valves or the like. Another lubrication system includes a total loss lubricant or cylinder oil (302), which is typically used to lubricate the engine's cylinders, piston rings and piston skirts.

[0055] Except as explained below, the engine (300) corresponds to a known prior art two-stroke engine.

[0056] In accordance with the present invention, also described is a friction modulation method / system (100) for reducing fuel consumption in a two-stroke engine. The friction adjustment method / system (100) obtains system lubricating oil (301') from at least one engine (300), wher...

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Abstract

The invention relates to a method and a corresponding system for reducing fuel consumption and environmental impact in a two-stroke engine, comprising the steps of obtaining system oil / consumable system oil (301') from at least one engine (300), supplying Adding (102) at least one friction modifier (101) to at least part of the resulting system oil / consumable system oil (301'), wherein the addition of the at least one friction modifier (101) reduces the resulting system The coefficient of friction of the lubricating oil / consumable system lubricating oil (301′), forming a system lubricating oil / consumable system lubricating oil (301″) with reduced friction, and combining said lubricating oil / consumable system lubricating oil with reduced friction Lubricating oil (301") is provided to said at least one engine (300). In this way, frictional losses due to system oil / consumable system oil contamination, which normally occur when the oil is used and cause a continuous reduction in engine efficiency, resulting in fuel consumption and Emissions increase. Furthermore, the invention relates to a method and a corresponding system for converting system oil / consumable system oil into cylinder oil. Finally, the invention relates to a method of using consumable system oil when said oil is converted into cylinder oil. This further allows consumable system oils to contain lower performance additive packages and / or lower additive treat ratios. Large economic savings and environmental improvements are thus obtained.

Description

technical field [0001] The present invention relates to methods of reducing fuel consumption, lubricant complexity and environmental impact during operation of two-stroke engines. Additionally, the present invention relates to a system for reducing fuel consumption, excess lubricant utilization and environmental impact in two-stroke engines. Background technique [0002] Two-stroke crosshead engines used in marine and / or stationary applications are equipped with two separate lubricating oil systems. One lubricating system comprises so-called system lubricating oil, which is generally used for lubricating and cooling engine bearings and, for example, oil-cooled pistons and the drive and / or control of various valves or the like. Another lubricating system includes a total loss lubricant (cylinder oil), which is commonly used to lubricate the cylinders, piston rings and piston skirts of the engine. [0003] In a typical two-stroke crosshead engine, cylinder oil is continuousl...

Claims

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Application Information

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IPC IPC(8): F01M9/02
CPCC10M175/0091F01M3/02F01M9/02F02B2075/025
Inventor G·纳托利G·G·波梅托A·邦乔里尼H·H·彼德森J·德拉格施泰德C·M·奥勒森K-W·达姆
Owner A P MOLLER AS
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