Patent ID: 6973783

Claim:
A hydraulic drive apparatus, comprising: a housing having a first pump chamber, a second pump chamber, a gear chamber, a first opening in a first end adjacent to the first pump chamber and a second opening in a second end opposite the first end and adjacent to the second pump chamber; a first pump rotatably mounted in the first pump chamber; a first pump shaft drivingly engaged to the first pump; a second pump rotatably mounted in the second pump chamber; a second pump shaft drivingly engaged to the second pump; an input shaft drivingly engaged to the first and second pump shafts; a first center section having hydraulic porting formed therein secured to the first end of the housing to close the first opening and a second center section having hydraulic porting formed therein secured to the second end of the housing to close the second opening; a first hydraulic motor affixed to the first center section and hydraulically connected to the first pump and a second hydraulic motor affixed to the second center section and hydraulically connected to the second pump.