Redesigning of Fuel Filling Arrangement for Genset using CAD

Abstract

The genset in today’s power shortage scenario is an important product for its users. The companies today are doing their best to offer competitive product with unique features that makes it standout and differentiate from others. Improving genset by design changes is a good practice to keep the product up to date with necessary design changes. These changes should reflect voice of customer in their redesign. The concerned product in this thesis work is Cummins 125 kVA genset. The feature to be redesigned was chosen from VOC obtained by using human centred design methodology and tools. The fuel filling arrangement in this genset is inside canopy enclosure as the fuel tank is in the base rail of genset. This arrangement was redesigned for external filling which is more convenient for the user as internal arrangement has limited accessibility and limited working space. Moreover the fuel level indicator was also placed on top of tank which is now redesigned and placed on canopy body itself at good height and visibility for the user. The fuel theft being a major concern in genset is also addressed in this thesis work. Retrofit devices which act as anti-theft measures with perforated periphery have been modelled which allow better flow rate and prevent any approach for siphoning fuel. This arrangement was made further protected with locked arrangement for safe use. All this redesigning is modelled on PTC Creo CAD software and verified with all engineering aspects to have a safe and ergonomically sound design for the user keeping in mind the cost and manufacturing limitations of the company.