A power transmission system comprises a transmission device, and a power supply device which powers the transmission device, wherein the transmission device comprises a cavity having a body, covers, an inlet and an outlet; at least a pair of rotors and a g...

The circuit has a motor assembly (230) connected to a hydraulic pump (212) by a return line (206). A force-feeding pump (214) deducts fluid in a fluid reservoir and forcedly supplies the fluid to the circuit at a level of a series line (204). An exchange b...