Special Purpose Gearing - A Users Approach To Sound Application Engineering
A recent study of Exxon Corporation's world-wide machinery startups indicated that special purpose gear problems have not been critical in terms of project delays. However, the incidence rate of gear problems has been relatively high, with the majority attributable to errors in vendor design or quality control. In an effort to reduce these incidents and resulting startup delays, Exxon Research and Engineering Company has implemented a program of intensive technical follow-up on all new gear units which has resulted in a substantial reduction of gear startup problems, and has practically eliminated special purpose gears as a source of project startup delays. This paper presents a summary of Exxon's gear startup problems over the last 10 years, and outlines specific engineering areas which are subject to Exxon's engineering reviews during the design and manufacturing phases.
Arndt, J. H. (1974). Special Purpose Gearing - A Users Approach To Sound Application Engineering. Texas A&M University. Gas Turbine Laboratories. Available electronically from