Systematic Fact Finding and Problem Solving for Leakage in High Pressure Line in Diesel Engine

Issue: Vol.5 No.1

Authors:

Supriya Darekar (Veermata Jijabai Technological Institute, Mumbai)

D.V. Pendum (Veermata Jijabai Technological Institute, Mumbai)

Prasad Shukla (Veermata Jijabai Technological Institute, Mumbai) 

Pravin Joshi (Tata Motors, Pune)

Keywords: HP line leakage, Diesel engine.

Abstract: 

In today’s fast paced world an automobile is becoming one of the very important and necessary accessories of modern age human. With the advent of new technologies and safety equipments in automobiles, more and more customers are getting attracted. Thus pressure on the automobile manufacturing industry is immense to fulfill ever increasing market demand in stipulated time. Various production concepts like assembly lines etc are used for mass production of vehicles. But the time constraints come in the way when the industries faced with some serious complaints over its products which eventually cost to the company as replacements and do damage to the brand image. In such cases the addressing real problems behind the complaints becomes very important to avoid such future incidents. The problems discussed in this paper are about leakage in HP line of a diesel engine at TATA Motors Pune. Approximately 25 incidents per thousand vehicles in warranty cases were found to be suffering from this particular problem so it was decided to find and address real issue. The high pressure line in diesel engine was found to be leaking at the injector side of the cylinder head. During this study no. of factors like human errors, inadequate clamping, HP line design, manufacturing defects, Material, turbulence in the line, and vibration of structure are found to be culprit. In this paper process of fact finding and problem solving using various quality tools for leakage in hp line of diesel engine in an automobile industry is discussed and new design of reinforced hp line is introduced.

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References:

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