Rider transaxle having improved hydrostatic transmission
US5330394A · kind A · utility
37Cited by
38References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Mar 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2186
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved hydrostatic transmission which is compact, reliable and economical to manufacture, including a novel means for reducing the speed of the input to the transaxle using both hydraulics and mechanical gearing; an improved differential which is stronger and less complicated than prior art designs; a more effective and efficient means for braking the transaxle, an improved means for hydraulically bypassing the hydrostatic transmission and a unique check valve arrangement for maintaining oil pressure within the hydrostatic transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.