F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 1/22 (2006.01) B60K 17/28 (2006.01) F16H 3/095 (2006.01)
Patent
CA 2125415
A change gear device (11) is disclosed of the type including a pair of substantially identical countershafts (27,29). The device includes a hydraulic PTO comprising a pair of fluid displacement mechanisms (71,73), each of which comprises a gerotor pump, and each of which receives input torque from one of the countershafts, by means of a pair of PTO input shafts (61,63), respectively. The PTO input shafts are clutched to the respective countershafts. The pressurized fluid output of the two fluid displacement mechanisms (71,73) is combined at a port (133), or other suitable location. Preferably, the two displacement mechanisms (71,73) are substantially identical, such that equal torques are transmitted through the transmission countershafts (27,29) while the hydraulic PTO of the invention is in operation.
Borden Ladner Gervais Llp
Corporation Eaton
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