Hydrostatic transmission
US6698198B1 · kind B1 · utility
7Cited by
42References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2188
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control apparatus for a hydrostatic device such as a hydrostatic transmission having a rotatable pump and motor mounted in a housing, a moveable swash plate engaged to the pump and a trunnion shaft engaged to one side of the swash plate and extending out of the housing, wherein the control apparatus comprises a control arm and return arm mounted external to the transmission housing, the control arm engaging the trunnion shaft and having a ball bearing mounted thereon, so that the return arm engages the ball bearing to provide a return force to the control arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.