US Patent 7299888 Pump unit and working vehicle

First pump shaft having an input end is on a side opposite PTO shaft in the vehicle width direction with second pump shaft in between. First and second pump shafts are supported by a pair of bearing members respectively provided at second end wall and lid member so as to sandwich the corresponding gear, and center section. Housing has a seal case portion at a portion for supporting an end on a side closed to driving source of the PTO shaft, the seal case portion including a ring-shaped oil distributing chamber for supplying operation oil to a PTO clutch operating oil path formed in the PTO shaft so as to supply the operation fluid to the PTO clutch.