Assembly Requirements Of 200kw Shangchai Generator Turbocharger

The 200kw Shangchai generator turbocharger has been popularized on many types of machines. It makes up for the inherent deficiencies of some naturally aspirated engines, so that the engine can increase the output power by more than 30% without changing the displacement.

1. Before assembly, all parts must be cleaned, and each friction surface should be lubricated.

2. When assembling the rotor assembly, the original mark should be aligned.

3. The rotor assembly must be checked for dynamic balance on the dynamic balance tester, and the coaxiality should be carefully checked (pictured), which should not be greater than 0.007mm, and can be assembled only after it is fully qualified.

4. Check the main clearance. The main clearance of the supercharger includes the axial clearance and radial clearance of the rotor shaft.

(1) Axial clearance inspection (picture): The magnetic bearing of the dial indicator is adsorbed on the turbine casing, so that the dial indicator contact is in contact with the end face of the turbine wheel to push the rotor axially, and the rotor shaft can be measured. The axial clearance must meet the technical requirements of the tested supercharger. For example, the axial clearance of the rotor shaft of the TA03 turbocharger is 0.076~0.165mm, and the axial clearance of the WD615 is 0.025~0.100mm.

(2) Radial clearance inspection (picture): Adsorb the magnetic bearing of the dial indicator on the turbine casing, make the long rod contact of the dial indicator contact the rotor shaft from the air inlet, and push the rotor shaft up and down. The radial clearance can be measured. For example, the radial clearance of the rotor shaft of the TA03 supercharger is 0.025~0.102mm, and the radial clearance of the Steyr WD615 is 0.075~0.160mm.

5. Check the exhaust valve. Using the same exhaust pressure as used on a diesel engine, check that the operation lever of the boost exhaust valve (position as shown) is flexible and smooth. When the pressure is 0.074-0.080MPa, the maximum stroke of the exhaust valve opening should be 1.27mm.

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