Construction machine
US11859367B2 · kind B2 · utility
0Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/853
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a construction machine on which a hydraulic closed circuit for driving a single rod-type hydraulic cylinder and a swing hydraulic motor is mounted and that has good swing deceleration responsiveness. In this construction machine that drives each of a single rod-type hydraulic cylinder and a swing hydraulic motor in a closed circuit, a minimum passage area from a second flushing valve to a tank in a case the second flushing valve is fully open is smaller than a minimum passage area from a first flushing valve to the tank in a case the first flushing valve is fully open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.