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US 6,651,529 B1Granted
Hydrostatic transmission
AssigneeHydro-Gear Limited Partnership
InventorsHerb M. Poplawsli, Thomas D. Wiley, John D. Schreier, Michael L. Bennett, Lonnie E. Holder, Ralph A. McClelland
Life of this patent
Estimating the term…
Abstract
A hydrostatic transmission mountable to a vehicle frame. The hydrostatic transmission is adapted to removeably receive an axle shaft. The hydrostatic transmission is also adapted to be mounted to at least one of two opposed side members of the vehicle frame. The opposed side members have openings though which the axle shaft passes. The vehicle may be a snow thrower.
Claims60
A hydrostatic transmission comprising:
- a hydraulic pump;
- a hydraulic motor driven by the hydraulic pump;
- and
- a sleeve piece driven by the hydraulic motor, the sleeve piece releasably receiving and driving an axle shaft.
1 more element
A vehicle comprising:
- a vehicle frame having a vertically oriented side frame portion;
- a housing, mounted to the side frame portion, comprised of a first housing section and a second housing section joined along a vertical junction surface that is parallel to the side frame portion;
- a hydraulic pump and a hydraulic motor mounted within the housing, the hydraulic motor being driven by the hydraulic pump via a hydraulic circuit;
- and
- an axle carried within the housing and driven by the hydraulic motor, the axle having a longitudinal axis that is perpendicular to the side frame portion.
2 more elements
A method for manufacturing a vehicle, comprising:
- mounting to a vehicle frame having opposed side frame members having opposed openings a hydrostatic transmission housing comprising a sleeve portion having longitudinally opposed openings into which an axle shaft is insertable such that the longitudinally opposed openings of the sleeve portion are aligned with the opposed opening of the side frame members;
- inserting an axle shaft into the sleeve member through the opening in one of the side frame members and the aligned longitudinal opening of the sleeve member such that the axle shaft extends from the sleeve member through the opposed openings of both side frame members;
- and
- attaching the axle shaft to the sleeve member such that rotation of the sleeve member drives the axle shaft.
1 more element
A snow thrower vehicle, comprising:
- a vehicle frame;
- a snow thrower assembly mounted to the vehicle frame driven by a snow thrower input shaft having an attached snow thrower pulley;
- a hydrostatic transmission mounted to the vehicle frame driven by a transmission input shaft having an attached transmission pulley;
- an engine mounted to the vehicle frame driving an output shaft having a first output pulley and a second output pulley;
- a first belt connecting the first output pulley to the snow thrower pulley;
- a second belt connecting the second output pulley to the transmission pulley;
- and
- a cooling fan mounted on the transmission input shaft, where the transmission input shaft extends through a loop created by the first belt, whereby the cooling fan and transmission are on opposite sides of the first belt.
5 more elements
Dependencies are inferred from the claim text.