Hydrodynamic retarder for commercial motor vehicle, has pressure accumulator filled with working medium via supply of pressure from regulating valve through transmission pump, supply orifice and integrated aperture

摘要

The retarder (2) has a pressure accumulator (3) arranged in a closed loop (7) of a working medium (1) in an area of pressure supply before a retarder regulating valve (4), where the pressure accumulator includes a coil spring. The accumulator is filled with the medium through supply of pressure from the regulating valve via a transmission pump (5), a supply orifice (11) and an integrated aperture.