Dump truck
US12319190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2021 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Aug 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/283
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is a dump truck capable of switching a destination of supply of hydraulic oil from a hoist cylinder to a fan motor at an appropriate time. A dump truck comprising: a hydraulic pump for discharging a hydraulic oil by a driving force of the engine; a hoist cylinder for raising and lowering a vessel by the hydraulic oil supplied from the hydraulic pump; a fan motor for driving a fan that supplies a radiator with cooling air by the hydraulic oil supplied from the hydraulic pump; a selector valve capable of being switched between a first position for supplying the hoist cylinder with the hydraulic oil discharged from the hydraulic pump and a second position for supplying the fan motor with the hydraulic oil; and a controller configured to, in a case where the selector valve is in the first position, determine whether an inflow pressure of the hydraulic oil flowing into the selector valve is less than a threshold value, and in a case of determining that the inflow pressure is less than the threshold value, switch the selector valve from the first position to the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.