Engine Overhaul Marine Turbo Parts T- Two Types of Journal Bearing

Engine Overhaul Marine Turbo Parts T- Two Types of Journal Bearing

T- IHI / T- RH series turbocharger design features:

T- RH163 and T- RH143 filter silencer (also called turbo silencer, whispering silencer and air outlet silencer) belongs to T- IHI / T- RH series turbocharger and its design features are as flowing:

• High reliability: Excellent thermal resistance, air and oil sealing performance and stable bearing system ensure the T- IHI / T- RH Series marine turbochargers' reliability and long service lifetime.
• Superior performance: the special design for its compressor wheels and turbine wheels make the high flow rate, wide operationg ranges and super response possible.
• Two types of journal bearing: semi-floating type and full-floating type, in order to prevent the shaft to move.
• Compact design: T- RH series is developed to reduce in size and weight, but maintain the necessary strength.
• Wide application: T- RH series turbochargers provide customers with the widest range of applications, such as automotive, heavy truck, construction, marine and industrial engine.

T- IHI turbocharger types include:

T- RH163 and T- RH143 filter silencer picture:

The function of turbocharger silencer:

As all knew, turbochargers have been extensively used in diesel engines to improve their performance. However, due to their operation at high speeds, turbochargers are susceptible to noise generation such as whine (narrow band) and whoosh (broadband). While unbalanced blades contribute to the former, the latter is due to turbulence. Such noise can be radiated from the structure, especially from the duct segment between the compressor and intercooler. The characteristics of turbocharger noise have been addressed that the compressor outlet was a major contributor to the overall intake system noise and experimentally demonstrated the effectiveness of a thicker wall and a resonator to reduce turbocharger noise that is a silencer could reduce both whine and broadband noise. (Reference from article "Design of a Multi-Chamber Silencer for Turbocharger Noise" by I. J. Lee, A. Selamet and H. Kim)