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Method and control unit for operating diesel internal combustion engine or dual-fuel internal combustion engine operated in diesel mode

A technology of internal combustion engine and operating mode, applied in the direction of engine control, engine components, engine lubrication, etc., can solve expensive and other problems

Pending Publication Date: 2020-10-30
MAN ENERGY SOLUTIONS SA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

it's expensive

Method used

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  • Method and control unit for operating diesel internal combustion engine or dual-fuel internal combustion engine operated in diesel mode

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Embodiment Construction

[0016] The invention relates to a method and a control unit for operating a diesel internal combustion engine or a dual fuel internal combustion engine operating in diesel operating mode.

[0017] figure 1 Shown is a highly schematic diagram of an internal combustion engine 1 comprising a plurality of cylinders 2 and an oil circuit 3 . The oil circuit 3 serves to supply, in particular, lubricating oil to the cylinders 2 of the internal combustion engine 1 , wherein the lubricating oil is supplied to the cylinders 2 of the internal combustion engine 1 via an advance 4 and is discharged therefrom via a return 5 .

[0018] According to the invention presented here, it is proposed to detect a measurement of the total base number (TBN) and / or a measurement of the viscosity of the lubricating oil currently used in the oil circuit 3 for lubrication. A measured value of the total base number of the lubricating oil currently used in the oil circuit 3 for lubrication is detected by mea...

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Abstract

A method for operating an internal combustion engine wherein the internal combustion engine to be operated is supplied with lubricating oil via an oil circuit. A measurement value of a total base number and / or a measurement value of the viscosity of the lubricating oil currently used in the oil circuit for the lubrication is detected. Dependent on the established measurement value of the total base number and / or dependent on the established measurement value of the viscosity an exchange oil quantity for the oil circuit is determined. Currently used lubricating oil to an extent corresponding tothe exchange oil quantity is removed from the oil circuit. New lubricating oil to an extent corresponding to the exchange oil quantity is supplied to the oil circuit.

Description

technical field [0001] The invention relates to a method for operating a diesel internal combustion engine or a dual fuel internal combustion engine operating in diesel mode. Furthermore, the invention relates to a control unit for operating a diesel internal combustion engine or a dual fuel internal combustion engine operating in diesel mode. [0002] In particular, the invention presented here relates to the range of so-called large engines or large internal combustion engines, the cylinders of which have a piston diameter greater than 140 mm, in particular greater than 175 mm. Such large internal combustion engines are, for example, marine engines. Background technique [0003] During operation, the internal combustion engine must be lubricated with lubricating oil. During this process, the lubricating oil undergoes operational-related aging. The aging of the lubricating oil can lead to the loss of lubricating effect of the lubricating oil and damage to the internal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/04
CPCF01M11/0458F01M2011/0475F01M2011/0466F16N2200/08F16N2200/12F16N2210/06F16N2270/52F16N2270/54F16N31/00F16N2250/36Y02T10/30F01M11/04F01M11/10F01M2011/1493F01M2011/148F01M2250/00F02D19/06
Inventor I.维尔克A.贝克J.朗格C.罗博格纳
Owner MAN ENERGY SOLUTIONS SA
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