Large rectangular baler having hydraulically powered functions, and control system therefor
US6651416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F15/0841
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A large rectangular baler includes pick-up and packer rotors, a pivotable stuffer, a plunger head, a knotter shaft and a needle yoke, and tension panels that are all driven hydraulically and independently controlled through electrically controlled valves that actuate the various hydraulic power devices used to power the various functions. An electronic control unit is coupled to each of the control valves and receives feedback signals from the controlled functions which are compared with values representing desired function results so as to further control the valves to attain the desired results. In addition to the feedback signals from the powered functions, signals from a bale length sensor and a ground speed sensor are also coupled to the electronic control unit for use in controlling the powered functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.