Komatsu 82E Series - Turbocharger Structure and Functions

8-2 82E-5 – 98E-5 SERIES
8. TURBOCHARGER
8.1 Structure and Functions
8.1.1 Main specifications
Note) VM application is provided with the waste gate.
8.1.2 Construction
Applicable engine model (application) S3D84E (VM) S4D84E (VM)
Turbocharger model RHB31 RHB51
Turbocharger specification Standard (w/waste gate)
Turbine type Radial flow
Blower (compressor) type Centrifugal
Lubrication method External lubrication
Max. continuous allowable speed rpm 250,000 180,000
Max. continuous allowable gas inlet temperature 750
Dry weight (kg) 2.4 4.2