Hitachi Zosen -MAN B&W 5S60MC-C
In October 2000, Hitachi Zosen Diesel & Engineering Co., Ltd. in Kumamoto completed the manufacture of Hitachi Zosen-MAN B&W 5S60MC-C diesel engine which was installed on the 75,000 MT Panamax-size bulk carrier.
This engine contributes to increasing the cargo space of he ship by shortening the engine length by 10% compared with the S-MC type and also the output is increased by 10% based on the mean effective pressure of 1.90 MPa with he following new design application for increasing reliability.
With the increased power, the number of cylinders can be decreased by one cylinder o maintain he same optimal point of 6S60MC for this project.
a) Tin-Al shell bearing for main bearings, crank pin and cross-head bearings
To greatly improve safe y margin, new material is used for the bearings.
b) High topland piston with Constant Pressure Release (CPR) rings Excellent service performance was already indicated in its application to the S-MC type
c) Al-Bronze coating for the piston ring surface was applied for more excellent running-in result can be expected.
d) Applying newly developed Exhaust gas Turbocharger
Higher efficiency than the specified level can be obtained.
PRINCIPAL PARTICULARS
Cylinder bore ... 600 mm
Piston stroke ... 2,400 mm
Cylinder pitch ... 1,020 mm
M.E.P. ... 1.90 MPa
Output at MCR ... 11,275 kW
Speed at MCR ... 105 min-1
