Verification test method of engine oil emulsification of engine

A technology of engine oil and verification test, applied in the direction of material inspection products, measuring devices, instruments, etc., can solve problems affecting product quality and reputation, high after-sales costs, etc., to avoid the risk of oil emulsification, improve product reputation, and save maintenance The effect of after-sales costs

Active Publication Date: 2017-09-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

However, before the new car leaves the factory and is delivered to the user, there is no verification test method for whether the oil has been emulsified. Once the new car has oil emulsification, the user will have great complaints, and the manufacturer will pay a huge after-sales cost, which will seriously affect the quality of the product. quality and word of mouth

Method used

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  • Verification test method of engine oil emulsification of engine
  • Verification test method of engine oil emulsification of engine
  • Verification test method of engine oil emulsification of engine

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Embodiment Construction

[0024] Concrete steps of the present invention are described in further detail below

[0025] This test method is to verify the emulsification of engine oil by simulating the user's urban working conditions in a low temperature environment (below 0°C) in winter. The specific test process is divided into three steps:

[0026] Step 1: Prepare the vehicle before the oil emulsification condition.

[0027] First of all, run the vehicle according to the requirements of the instruction manual, and then maintain the vehicle after the running-in is completed. During maintenance, follow the figure 1 , figure 2 , image 3 As shown, a temperature sensor is arranged at the bottom of the oil dipstick, inside the water inlet of the water tank, and at the exterior rearview mirror of the vehicle, and is connected to the data acquisition to monitor and collect the engine oil, water temperature and ambient temperature during the test. Mark the liquid level of the storage pot. Specifically...

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Abstract

The invention discloses a verification test method of engine oil emulsification of an engine. Before a new car is delivered out from a factory to a user, whether engine oil is emulsified or not is judged by observing whether the engine oil becomes milk white and is foamed or not through the cycle steps of starting, accelerating, idling and restarting; preventive measures are adopted, so that the utilization risks of the user are eliminated after the car is sold in the market and the maintenance and after-sales cost caused by the engine oil emulsification is saved.

Description

technical field [0001] The invention relates to an engine oil emulsification verification test method, which is a whole vehicle test method aimed at whether the engine oil is emulsified when the car is used in a low-temperature environment, and particularly relates to a whole vehicle test method for whether the engine oil of a new car is emulsified before being delivered to a user. Background technique [0002] Engine oil emulsification is a common abnormal phenomenon of engine oil caused by the use of automobiles in low-temperature environments-the engine oil turns into a white milky liquid, which is produced by mixing engine oil and water (cooling water or water vapor, etc.), once the engine oil is emulsified , it will not be able to play the role of lubrication, which will cause irreversible damage to the engine. The main reasons for the emulsification of engine oil are: the design of the engine crankcase structure, the quality of the engine oil, the environment in which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28G01N25/00
CPCG01N25/00G01N33/2888
Inventor 黄鹏邓勇军刘金豹
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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