Tractor type vehicle including engine and load control therefor and provided with rotary working implement
US4077475A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Apr 26, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/1117
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Load control for engine of vehicle for agricultural work with rotary working implement, for avoiding too much deviation of the working depth while preventing the engine from stopping under heavy overloading. The rotary working implement is automatically raised and lowered in accordance with the results of sensing the engine rotation and of the actual working depth. For prevention of the engine failure, the rotary working implement is unconditionally raised whenever engine rotation below a predetermined value is sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.