Re-engineering and Renovation
Hydrostatic Transmission System
A hydrostatic transmission is a hydraulic system where the hydraulic pump or an accumulator drives the motor using the fluid passing through flexible hoses and gears are not required for converting rotating mechanical energy.
The scope of the project was re-engineering and renovation of the hydrostatic transmission system of locomotives.
Challenge
Frequent shutdown time and low efficiency for crucial transfer systems, led our client to ask for re-engineering and renovating the entire hydraulic system of 10 locomotives made by Behr with similar specifications – all facing the same problem.
Behr manufactures drive units, air conditioning, and engine cooling systems, today operating as Mahle Behr, based in Germany.
Solution
We modified the controller, drive pump, and prime mover for compressor stations and cooling fans. Hydraulic motors were equipped with an integrated electrical by-pass valve to idle compressors and fans.
We overhauled and renovated 8 locomotive hydrostatic transmission system sets during the years 2014 to 2016.
