Hydraulic circuit for construction machine and control device therefor
US9932994B2 · kind B2 · utility
6Cited by
21References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | May 16, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/781
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic circuit for a construction machine including a direction control valve group including direction control valves provided in tandem to a center bypass passage, a bleed-off valve provided to the center bypass passage downstream of the direction control valve group, and a control valve controlling an amount of pressure oil to be supplied to the direction control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.