Hydraulic swing damping system
US6886278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Jun 14, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2207
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.