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MAN Welcomes TCA44 To The Family

Posted on March 15, 2011

MAN Diesel & Turbo has launched the newest member of the TCA family of axial turbochargers – the TCA44, which weighs 1.97 kg and completes the TCA turbocharger range for two-stroke engines.

“This new turbocharger has been specifically designed to meet the needs of small-bore, two-stroke engines and provides optimized turbocharging solutions for engines that exceed the capacity limits of the smaller TCR22 turbocharger,” said Stefan Mayr, the project engineer responsible for the TCA44.

Before the TCA44, the TCA55 was used for such engines, though it suffered due to its larger size and weight; the TCA44 is about 40% smaller and lighter, according to the company. Some modifications of the TCA44 design include 45 steel turbine blades with a new airfoil profile; the fixation of turbine blades by one retaining ring; oil supply and discharge integrated in the turbocharger feet as part of the bearing casing; a new compressor-wheel profile; a simplified IRC design; and a modified silencer.

MAN Diesel & Turbo said that some of the modifications, such as the turbine blade fixation, will be gradually introduced to the other frame-sizes of the TCA family. Serial deliveries are expected to start in the second half of this year.

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