1971 Volume 6 Issue 3 Pages 167-181
The superior characteristics of the multi-geared diesel plant for marine propulsion has been recognized gradually. In order to fully realize the superiority of the propulsion system of this kind, clutch couplings of high-performance and high-reliability have been eagerly demanded. In such circumstances we have recently developed a double-cone type and air-operated, friction clutch with high elastic rubber coupling.
Previously, with a test clutch coupling of model type (rated capacity of 500 ps) we have carried out simulately various tests to study performance and endurance characteristics. Through the test various technical data have been obtained ; such as vibration and alignment-characteristics, frictional characteristics of some clutch-lining materials and thermal endurance limit on clutch drum.
Based on these experiences and data, a clutch coupling of enlarged capacity for practical use (rated capacity of 10, 000 ps) was designed and manufactured for trials. Also this clutch was assembled in a test shafting line in our shop, simulated to a practical and typical marine propulsion system. The clutch was loaded with a hydraulic dynamometer and driven by a diesel engine of KA-WASAKI-M·A·N V8V 40/54. As results, followings have been confirmed :
(1) This clutch coupling has enough capacity for rated torque transmission, and possibility to improve astern manoeuvre by clutch application.
(2) This clutch coupling can be easily controlled remotely or antomatically as well as manual operation and it can damp out the torsional vibrations in the entire operating range.
(3) Additionally this clutch coupling can be manufactured with reasonably low cost.
