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Analysis Study on Durability Properties of Washer Pump with Vent Hole  

Lee, Sanghoon (Reliability Research Center, Korea Automotive Technology Institute)
Wei, Shinhwan (Reliability Research Center, Korea Automotive Technology Institute)
Kim, Sungwoo (Durability & Reliability Team, Hyundai Motor Company)
Kim, Gyuro (The Dept. of Mechatronics Engineering, Gyeonggi College of Science and Technology)
Publication Information
Journal of Applied Reliability / v.13, no.1, 2013 , pp. 45-53 More about this Journal
Abstract
In this paper, we analyze the failure mechanism of the washer pump to find what is the failure cause in the road environment. The statistics show the field common failure mode is inner corrosion. The failure mechanism is assumed that the inner part of washer pump is corroded due to inflow of moisture through vent hole. To prevent the failure, we can think a method that is covering the vent hole. In general, the vent hole is designed to play an important role in an automobile parts. So, we need to prove the vent hole is not necessary. The first purpose of this paper is to make sure that the vent hole does not affect the durability of washer pump using the analysis of operating condition. The second purpose is to compare the durability properties if the vent hole is covered.
Keywords
Washer Pump; Washer System; Vent Hole; Failure Analysis;
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