Working machine
US12352012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2021 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | May 9, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/366
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A working machine includes a prime mover, a traveling pump driven by power of the prime mover to deliver hydraulic fluid, a traveling motor rotated by the hydraulic fluid delivered from the traveling pump, an operation valve configured to change a pilot pressure of pilot fluid output therefrom to the traveling pump according to operation of an operation member, an actuation valve to be activated according to a control signal so as to change a primary pressure supplied to the operation valve, a controller to perform setting of the control signal to be output to the actuation valve, and a pressure detection device to detect a secondary pressure output from the operation valve. The controller includes a setting change unit to change, based on the primary pressure and the secondary pressure, the setting of the control signal to be output to the actuation valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.