Axle driving unit for a lawn tractor

Details Axle driving unit for a lawn tractor Axle driving unit for a lawn tractor

2007-01-08

2008-10-14

Culbreth, Eric (Department: 3616)

Motor vehicles

Power

Including traction motor of kind driven by noncompressible...

C180S306000, C180S307000

Reexamination Certificate

active

07434651

ABSTRACT:
An axle driving apparatus includes a housing for supporting an axle, a hydrostatic transmission including a hydraulic pump, a hydraulic motor, and a center section. The center section has a pump mounting surface and a motor mounting surface substantially perpendicular to each other. A rotational axis of a motor shaft is disposed lower than a plane located at the pump mounting surface. The center section includes a narrow portion and a wide portion. The narrow portion is defined between a first side and a second side opposite the first side in a direction along the rotational axis of the motor shaft. The wide portion is formed adjacent to the narrow portion. A first extension of the wide portion is defined by a width that extends from the first side in the direction along the rotational axis of the motor shaft and a length that extends in a direction perpendicular to the rotational axis of the motor shaft. A second extension of the wide portion is generally defined by the pump mounting surface formed thereon.

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Hydrostatic Transaxle Models 778 Right Angle Transaxle, online at http://hydraulics.eaton.com/products/pdfs/11-701.pdf, Eaton Corporation, dated Aug. 1998.

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