Boom/bucket hydraulic fluid sharing method
US6618659B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 14, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2292
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method of sharing hydraulic fluid, includes: inputting first signal from a first manual control and second signal from a second manual control; sending a first control signal controlling a first valve in response to first signal; sending a second control signal controlling a second valve in response to second signal, wherein the first valve and second valve direct flow through a first sub-circuit and a second sub-circuit, respectively, wherein the first sub-circuit moves a boom arm and the second sub-circuit moves an implement; determining whether the boom arm and implement are in a first, second, third, or fourth condition; modifying at least one of the first and second control signals when the boom arm and implement are in first or second conditions; and controlling the first valve using the unmodified or modified first control signal and controlling the second valve using unmodified or modified second control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.