Man VTA, Project Manual, Page: 16 / 42

2 Overview of series
2.1 VTA on TCA turbocharger
Figure 8: TCA turbocharger with adjustable turbine nozzle ring
2.2 Dimensions
The dimensions of the turbocharger are not changed by using an adjustable
turbine nozzle ring.
Overall dimensions for TCA turbocharger:
See Project Guide “TCA Turbochargers”.
Depending on the engine plant, an additional control cabinet or switch box is
required to house the VTA controller for the adjustable turbine nozzle ring.
Description of the required components for the VTA controller:
See chapter Systems / VTA control.
Dimensions and installation of the required control cabinets:
See chapter Engine room planning .
2.3 Weights
Subassembly Turbocharger
Number Designation TCA55 TCA66 TCA77 TCA88
510 Adjustable turbine nozzle ring 78 kg 131 kg 220 kg 361 kg
511 Adjustment device 40 kg 40 kg 56 kg 56 kg
549 Sealing air pipe 2 kg 2 kg 3 kg 3 kg
–
m+ 1)
100 kg 110 kg 140 kg 190 kg
1) m+ = weight increase of a TCA turbocharger with VTA compared with a TCA turbocharger of the same size with-
out VTA
Table 10: Weights of individual VTA components
Overall dimensions
Control cabinet
2 Overview of series
2.3 Weights
2013-12-04 - de
2 MAN Diesel & Turbo
14 (38)
EN-US