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Engine oil monitoring method and engine oil monitoring device

A technology of engine oil and monitoring device, applied in the direction of engine components, machine/engine, engine lubrication, etc., can solve the problems of occupying a large space, cumbersome operation, complex structure, etc., to prevent diesel engine failure, low cost, and simple device reliable effect

Inactive Publication Date: 2015-03-04
CRRC DALIAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These solutions are either cumbersome to operate or complex in structure, occupy a large space, and are only suitable for operators to observe with naked eyes

Method used

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  • Engine oil monitoring method and engine oil monitoring device
  • Engine oil monitoring method and engine oil monitoring device
  • Engine oil monitoring method and engine oil monitoring device

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] See attached figure 1 , the engine oil viscosity monitoring method of the present embodiment starts from box 1.1, enters box 1.2, and sets the resistance critical value R of the oil resistor C =20MΩ and the critical drop rate K of oil detector resistance C = 0.2. Enter box 1.3, immerse the oil resistor in the engine oil in the engin...

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Abstract

The invention relates to an engine oil monitoring method. The method comprises the steps of setting an engine oil resistor resistance critical value RC and an engine oil detector resistance critical decrease rate KC; monitoring and calculating the engine oil resistor resistance value and the engine oil resistance decrease rate in real time; determining the engine oil to be aged if the engine oil resistor resistance value is equal to or smaller than the critical value RC, and determining that no oil exists in the position if the engine oil resistor resistance value is infinitely great; determining that the engine oil is mixed with water or fuel if the resistance decrease rate is greater than the critical decrease rate; and determining that oil exists in the position if the resistance value is greater than the critical value. The monitoring device is characterized in that an engine oil resistor is connected to a power supply after being connected with a voltage dividing resistor in serial to form a closed circuit, and two ends of the voltage dividing resistor are connected to an engine oil monitoring signal input end of a microcomputer controller. By adopting the engine oil monitoring method and the engine oil monitoring device, the engine oil viscosity and the engine oil level of the engine can be conveniently and automatically monitored, the state and type of the engine oil viscosity can be accurately determined, and the diesel engine failure caused by the decrease of the engine oil viscosity can be prevented. The monitoring device is simple, reliable and low in cost.

Description

technical field [0001] The invention relates to a method and a device for monitoring engine oil, and belongs to the technical field of engine manufacturing. Background technique [0002] The oil viscosity state should be one of the important monitoring parameters of the engine, but due to the lack of effective technical means in the existing technology, the oil viscosity is rarely included in the automatic monitoring items in the current various engines. The viscosity drop of engine oil caused by some emergencies, such as oil dilution and emulsification problems caused by cooling water leakage and fuel leakage, often leads to major engine failures due to failure to monitor in time. [0003] On the other hand, the engine oil level has not been included in the automatic monitoring items of various engines at present. In the prior art, mechanical structures such as an oil level gauge or a buoy are generally used for monitoring the oil level of the engine oil. These solutions ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/10F01M11/12F02B77/08
CPCF01M11/10F01M11/12F01M2011/1453F01M2011/146F01M2011/148
Inventor 段訾义李哲王洪峰李奇峰
Owner CRRC DALIAN CO LTD
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