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Fuel efficiency for trunk piston four-stroke diesel engines

a four-stroke, fuel efficiency technology, applied in the direction of engine components, auxilary lubrication, pressure lubrication with lubrication pump, etc., can solve the problems of degrading oil quality, degrading oil quality, and degradation process that cannot be reversed or stopped by separators, so as to reduce fuel consumption

Inactive Publication Date: 2007-05-24
A P MOLLER AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0027] The present invention also relates to a method reducing fuel consumption in a four-s

Problems solved by technology

Four-stroke trunk piston diesel engines, however, typically use only a single oil type for lubrication and cooling.
Trunk piston engine oils are constantly affected by exposure to the combustion process whereby the useful properties of the trunk piston engine oil is degraded over time as the oil become more and more spent until finally the oil will have to be either replenished or completely changed.
This degradation process cannot be reversed or halted by separators or the like.
Contaminations caused by engine and part wear, particle pollution (e.g. from combustion by-products), oxidation, hydrolysis, etc

Method used

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  • Fuel efficiency for trunk piston four-stroke diesel engines
  • Fuel efficiency for trunk piston four-stroke diesel engines
  • Fuel efficiency for trunk piston four-stroke diesel engines

Examples

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Embodiment Construction

[0036]FIG. 1 illustrates a schematic block diagram of a prior art four-stroke trunk piston engine system. Shown is a typical prior art four-stroke trunk piston engine (100) connected to its oil system responsible for cycling oil through the engine during use thereby cooling and lubricating the engine (100) and other parts of the system.

[0037] Oil being tapped from the engine (100) is typically passed through a first filter (110) by a pump (not shown) or the like where the filter (110) is responsible for removing small particles, insolubles, wear debris, etc. from the oil. After this, the oil is passed to an engine oil container (101) or the like. Connected to the oil container (101) is a separator or filter (111) (forth only-denoted separator) that receives some of the oil from the container (101) and removes dirt, wear debris from engine components, water caused by hydrolysis, etc. typically by spinning. The separator (111) may also remove unwanted chemical compounds like CaSo4, e...

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PUM

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Abstract

The present invention relates to a system (and corresponding method) for reducing fuel consumption in a four-stroke trunk piston diesel engine, the system comprising: a replenishment system connected to receive engine oil from a four-stroke trunk piston diesel engine and to receive replenishment oil, where the replenishment system is configured for mixing the engine oil and the replenishment oil resulting in a mixed oil that is introduced into the engine.

Description

FIELD OF THE INVENTION [0001] The invention relates to a system for reducing fuel consumption in a four-stroke trunk piston diesel engine. Further, the invention relates to a method of reducing fuel consumption in a four-stroke trunk piston diesel engine. BACKGROUND OF THE INVENTION [0002] Diesel engines used onboard certain types of vessels and / or used in certain stationary applications are typically of the well known two-stroke type or of the well known four-stroke type. [0003] Two-stroke cross-head engines used in marine and / or stationary applications are equipped with two separate lubricating oil systems. One lubricating system comprises so-called system oil / system lubricant that normally is used for lubrication and cooling of the engine's bearings and e.g. oil-cooled pistons as well as for activation and / or control of various valves or the like. The other lubricating system comprises an all-loss lubricant (cylinder oil / cylinder lubricant) that normally is used for lubrication o...

Claims

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Application Information

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IPC IPC(8): F01M1/02F01M11/03
CPCF01M11/04F01M2011/0475
Inventor LEAHY, RICHARDDAMM, KLAUS-WERNER
Owner A P MOLLER AS
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