Patent ID: 8500586

Claim:
A transmission system, comprising: a planetary gear assembly comprising the following gear elements i a planet carrier; ii at least one planet gear mounted on said planet carrier; and at least one of: iii a sun gear; or iv a ring gear; a first-side mechanism comprising a chamber and a first-side shaft having a connection end connected to the chamber, and a free end; at least one transfer arrangement, comprising a transfer mechanism and a transfer shaft having a first end connected to the transfer mechanism; and a second-side mechanism comprising a second-side shaft; wherein the chamber is fluidly coupled to the transfer mechanism for transfer of rotary motion therebetween, and wherein the chamber is connected to one of the gear elements (i), (iii), or (iv); the transfer shaft is connected to one of the gear elements (i), (ii), (iii), or (iv); and the second-side shaft is connected to one of the gear elements (i), (iii), or (iv); such that each of the gear elements is only coupled to one of the chamber, said transfer shaft, or the second-side shaft throughout the operation of the transmission system, and wherein the planetary gear assembly includes a multi-level planetary gear assembly comprising more than one of the following gear elements: the planet carrier (i), the at least one planet gear mounted on the planet carrier (ii), the sun gear (iii), or the ring gear (iv).