Traction chain for hydraulic hybrid vehicle, has pump connected with pressure accumulators and provided with blocking unit for blocking output shaft with respect to bodies of pump, where blocking unit includes clutch

摘要

The traction chain (1) has a variable cubic capacity hydraulic engine arranged with pressure accumulators (26) and attached to driving wheels (20) of a hydraulic hybrid vehicle. A thermal engine (2) directly drives an element of a hydraulic pump (4). Bodies or an output shaft (6) of the pump are connected with the driving wheels. The pump is connected with the pressure accumulators and provided with a blocking unit for blocking the output shaft with respect to the bodies of the pump. The blocking unit includes a clutch (8) connecting the output shaft to the bodies of the pump.