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Method and device for determining the concentration of carbon black in the motor oil of combustion engines

A technology for engine oil and internal combustion engine, which can be used in measurement devices, material thermal analysis, material inspection products, etc., to solve problems such as engine oil viscosity or damage to lubricating performance, and achieve reliable results.

Active Publication Date: 2012-07-04
MAN TRUCK & BUS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, increased ingress of carbon black into the engine oil can lead to impairment of the viscosity or lubricating properties of the engine oil

Method used

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  • Method and device for determining the concentration of carbon black in the motor oil of combustion engines
  • Method and device for determining the concentration of carbon black in the motor oil of combustion engines
  • Method and device for determining the concentration of carbon black in the motor oil of combustion engines

Examples

Experimental program
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Embodiment Construction

[0026] exist figure 1A sensor 1 for determining the concentration of soot in engine oil is shown in FIG. 2 , the sensor 1 having a flow-through container 2 with a defined predetermined volume (Volume). A predetermined amount of engine oil of the internal combustion engine flows through the flow-through container 2 in the direction of the flow arrows 3, 4 for a certain duration, wherein the flow rate of the engine oil through the flow-through container 2 is essentially always the same and has a predetermined and The velocity value is known from this.

[0027] In this case, by way of example, a first coil 7 is arranged in the flow path of the engine oil in the inflow-side container region 5 . At a distance from the first coil 7 , another substantially identically constructed coil 8 is arranged in the outflow-side container region 6 , which is also located in the flow path of the engine oil.

[0028] The two coils 7 , 8 together with the impedances 9 , 10 (where the impedance 1...

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Abstract

The method involves guiding a defined amount of the engine oil with a defined flow rate along or through a measuring section (2). The engine oil is impinged in the area of the measuring section with energy of an energy source (13). The sooty particle contained in the engine oil absorbs the energy. The energy amount absorbed in the measuring section area is detected by a measuring unit. An independent claim is also included for a device for determining the carbon black concentration in the engine oil of internal combustion engines.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for determining the soot concentration (Russkonzentration) in engine oil of an internal combustion engine. Furthermore, the invention relates to a device for determining the soot concentration in engine oil of an internal combustion engine according to the preamble of claim 12 . Background technique [0002] It is generally known that carbon black entering (Eintrag) engine oils can have an adverse effect on the oil properties. For example, increased ingress of carbon black into the engine oil can lead to impairment of the viscosity or lubricating properties of the engine oil. However, with the increasingly complex requirements for exhaust gas aftertreatment due to modern exhaust gas regulations, modern internal combustion engines are more often operated in operating points (Betriebspunkt) in which there is increased soot in the engine oil Incoming volume is inevitable. Thus, this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/26G01N21/03G01N21/35
CPCG01N15/06G01N25/00G01K17/08G01N33/2888G01N33/2835
Inventor F·菲舍尔H·贝克
Owner MAN TRUCK & BUS AG