Hydrostatic system configured to be integrated in an excavator
US9394924B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Apr 8, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/444
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydrostatic system is configured to be integrated in a vehicle, e.g. an excavator. The hydrostatic system may comprise a first closed hydraulic circuit including a first hydraulic pump and a first hydraulic motor configured to operate a first component of the vehicle, and a second closed hydraulic circuit including a second hydraulic pump and a second hydraulic motor rated to operate a second component of the vehicle. Furthermore, a single six-port two-position directional valve may be provided. The single six-port two-position directional valve may be configured to switch between a first position and a second position such that in the first position the first hydraulic motor is driven by the first hydraulic pump and the second hydraulic motor is driven by the second hydraulic pump, and in the second position the first hydraulic motor is disconnected from the first hydraulic pump and the second hydraulic motor is driven by both the first and second hydraulic pumps. The present disclosure also refers to a method for operating a hydrostatic system configured to be integrated in a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.