Analysis of methods for reducing mechanical losses in drives of auxiliary mechanisms of diesel engines

This article analyzes modern methods for reducing mechanical losses in auxiliary drives of diesel engines, including a review of Russian and international research. Approaches such as the use of electromagnetic clutches to regulate the operation of cooling pumps, variable-displacement pumps, and drive decentralization are considered. Developments at Astrakhan State Technical University are described, including experimental rigs with variators for smoothly changing the pump speed. Test results demonstrate a 30 — 50 % reduction in power consumption (from 1000 W to 300 — 628 W), fuel savings of up to 20 %, and an increase in thermal efficiency. The relevance of this approach for improving the efficiency of marine engines and reducing emissions is emphasized.

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