Vehicle hydrostatic transmission circuit
US7213672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2002 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Feb 1, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/506
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrostatic transmission circuit for a vehicle having at least two displacement members (12) driven by at least one hydraulic motor (10) having a feed main duct and a discharge main duct (16, 18). Skid control means for controlling skidding of at least one displacement member comprise a skid control valve (20) and an additional valve (22) that are disposed in parallel on a main duct (16). At least the skid control valve (20) has a constriction of variable section, while the additional valve has two end positions (22A, 22B), in which its through sections are respectively at their maximum and at their minimum. Control means (UC, 26, 28) make it possible to cause said valves to move as a function of a skid situation detected by detection means (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.