HYDRODYNAMIC RETARDER FOR COMMERCIAL VEHICLES
Retardant devices are braking systems of electromagnetic or hydrodynamic type acting either the transmission or the engine without friction elements in contact, the braking being performed through electromagnetic induction or using a hydraulic fluid which opposes the rotation of an impeller. Devices retarder can act on the transmission by means of induction currents generated by means of electromagnets supplied electric currents oppose the rotation of disks mounted on the drive and rotate around these electromagnets, in this case the retarder is electric drive or with a hydraulic fluid which is moving in a torque converter, fluid on which that action is taken by increasing the pressure it in turn to oppose the rotation of the drive generating the braking gear and thus the vehicle in this case is the retarder hydraulic.
Key words: electromagnetic and hydrodynamic braking systems, transmission, hydraulic fluid, retarder, torque converter, pressure.
Frăţilă Gh., Frăţilă M., Samoilă Şt. Automobile. Editura Didactică şi Pedagogică, Bucureşti, 2005.
***MANVIS-MAN Workshop Infosystem. 2013.
***VOLVO Impact DVD. 2014.
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