Hydraulic valve with a position sensor
US6789570B2 · kind B2 · utility
17Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Nov 24, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8663
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve with a position sensor is described. According to various implementations, the valve has a cage with a set of radial holes, a spool assembly slideable within the cage, and a sensor, which may be a Hall effect sensor, that reacts to the movement of the spool assembly. In other implementations, the spool comprises one or more of the following: a spool, a pin that is mechanically coupled to the spool, a dampener, which may be a spring, having a first and a second end, the first end being in contact with the pin and the second end being in contact with the spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.