T- KBB Turbocharger / T- HPR3000 Journal Bearing Turbo In Marine Engine Parts

T- KBB Turbocharger / T- HPR3000 Journal Bearing Turbo In Marine Engine Parts

T- KBB / T- HPR series turbocharger features:

T- HPR3000 Turbo Bearing belongs to the part of  T -KBB / T- HPR series exhaust gas turbocharge, which is designed to suitable for diesel engines, heavy fuel oil engines, natural gas, biogas and special gas engines, and dual-fuel engines.  The T- HPR series turbocharger is single-staged turbine with high pressure turbocharging suitable for medium-speed engine with output range from 500 to 3,000 per turbocharger.

• high compressor pressure ratios, up to 5.0 (if with aluminium impeller, the max. pressure ratio is 4.7);

• high turbocharging efficiency from 63% to 68%;

• combined with wide compressor maps;

• Engines power range from 500 to 3,000 kW output per turbocharger;

• Reduced pollutant emissions from the engines;

• Compressor and turbine with washing device;

• The bearing casing is water-cooled type;

• Long service life and extended maintenance intervals.

• Main applied to power generation, diesel-electric drives, diesel-mechanical drives, main propulsion engines, auxiliary engines, locomotive equipment, off-road field, etc.

T- HPR turbocharger series includes:

The function of turbo bearing:

Turbo bearings work under high temperature, high speed and light load conditions to ensure reliable operation of the bearings under working conditions. Turbocharger bearings are divided into rolling and sliding, marine superchargers mostly use rolling bearings, in addition to thrust bearings. The rolling bearing has a small friction coefficient, generates less heat, and consumes less lubricating oil, which simplifies the lubrication system. The sliding bearing has a simple structure and low cost, and can be used with the same lubrication system of the diesel engine or a special external oil supply device, so that the overall structure of the supercharger is complicated, and maintenance and management requirements are high, otherwise it is prone to failure.

T- HPR Series turbocharger's engine output, pressure ratio and weight:

Note:

* with aluminium impeller - max. pressure ratio 4.7           

** Weight = basic turbo + air filter silencer + gas outlet casing

T- KBB / T- HPR turbocharger' part of drawing:

Brief introduction of Marine turbocharger:

Marine turbocharger / Exhaust gas turbochargers operate at high speeds, high exhaust gas temperatures, high air and exhaust gas flow rates, and high flow rates. Generally, the pressure of the exhaust gas is 0.25-0.45 MPa, and the exhaust gas temperature is 500-600 °C. The speed varies with the size of the Marine turbocharger / supercharger. The maximum speed of the large-sized supercharger is 10000 r/min, and the maximum speed of the small-sized supercharger can reach 40,000~50000r/min. Therefore, the marine turbocharger/exhaust gas turbocharger is a precision machine.