High Pressure Ratio HPR3000 Rotor Shaft For KBB Exhaust Gas Turbocharger Shaft

Design features for KBB / HPR series marine turbocharger:

• High turbocharging efficiency from 63% to 68%;

• High pressure ratios: up to 5.0 in continuous operation;

• Engine power output ranges from 500 to 3,000 kW per turbocharger: T- HPR3000 engine output 500-900kW; T- HPR4000 engine output 700-1,300kW; T- HPR5000 engine output 1,000-1,900kW; T- HPR6000 engine output 1,600-3,000kW.

• Inboard journal bearings;

• Lubricated by engine oil system;

• Compressor and turbine with washing devices;

• Speed measurement;

• Jet-assist cartridge;

• 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.

Engine output, pressure ratio and weight for KBB HPR Series turbocharger:

Note:

* with aluminium impeller - max. pressure ratio 4.7

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

Picture for HPR3000 Rotor shaft:

Description of HPR 3000 rotor shaft:

The turbocharger rotor shaft is equipped with components such as a compressor and a turbine impeller, and has a complicated structure and a large weight. If the ship is parked for a long time, the turbocharger rotor will be bent and deformed due to the long-term non-operating self-weight, which will break the matching gap between the rotor and the casing, the gas seal and the casing, and the rotor will be lost. In severe cases, the rotor is difficult to rotate and the friction is severe. A large centrifugal force is generated during operation to cause the supercharger to vibrate.