Return to neutral device for a hydraulic apparatus
US7111545B1 · kind B1 · utility
20Cited by
32References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/324
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a hydrostatic device using an axial piston pump, a return plate is mounted so that it contacts the movable swash plate of the hydrostatic transmission. The plate is biased by a spring-type mechanism to force the swash plate to return to neutral, and the set position of the plate may be externally adjusted. A bias arm comprising a generally U-shaped member having spring mounted on either leg thereof may be engaged to the return plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.