Hydraulic system for working machine
US12221768B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2024 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jan 5, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/67
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a working machine, a controller is configured or programmed to control actuation of a blocking switching valve and a solenoid valve, to cause the blocking switching valve to unblock a first pilot fluid passage to perform switching to a first operation pattern in which an operation device operates a first device via a first control valve and a first hydraulic actuator, and cause the blocking switching valve to block a second pilot fluid passage and control the solenoid valve based on pilot pressure detected by a pressure detector to perform switching to a second operation pattern in which the operation device operates a second device via a second control valve and a second hydraulic actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.