H4-HH-14-D ar units High contact ratios of the gearing Ther Helical gear Reduction Boxes H4

Flender/Flender Gear Units/Helical gear Reduction Boxes H4

highly efficient products for today' and tomorrow' vessels. Our high standards have earned us the full confidence of both the military and commercial marine industries. rwv\ vMJij ^- ^^rO^hnson XT Visit us at the SNAME Conference & Expo, Booth #1, September 3 - October 1. DuraCooler > Keel Cooler , DURAMAX BoxCooler ( onnson ^ Demountable Keel Cooler DURAIVIAX MktJit^iC^^ IVIARII\IE' Johnson Johnson Duramax Demountable Stuffing Fendering Shaft Seal Stave Boxes Systems Systems Bearings mm PH: 4-8-5 FAX: 8-4-9 FLENDER GRAFFENSTADEN DuramaxMarine speed reducers 5 Maritime Reporter & Engineering News Propulsion Annual TOR: The Next-Generation Turbocharger Following the introduction of the TCA axial turbocharger two years ago, MAN & Diesel Group announced an expansion of the range to include com- pletely new radial turbocharger. The TCR turbocharger will replace the cur- rent NR series that has been in produc- tion for nearly 5 years culminating in the current NR/ design. The new TCR additional sealing air requirement. The piston ring gasket, combined with labyrinth seal, was thoroughly tested and proved to provide optimum sealing capacity both in operation and at stand- still. Flow calculations played major part in the development of the new tur-bine in order to create shape with high efficiency on the one hand and wide application range on the other. Consequently the new turbine is designed to provide optimum values in part load and full load operation and the manufacturer reports that it is equally suitable for constant and pulse pressure turbocharging. Development work also concentrated on the noise level by the introduction of completely new intake silencer, which reduces the turbocharger noise. Circle 3 on Reader Service Card series has compressor pressure ratio of 4.7; b