Hydraulic fluid energy recovery system for work
US10161108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/88
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a hydraulic fluid energy recovery system for a work machine equipped with a hydraulic pump, a hydraulic actuator for driving the work machine, an operating device for operating the hydraulic actuator, and a regenerating device for recovering a return fluid flowing back from the hydraulic actuator. The hydraulic fluid energy recovery system includes: a fluid line for allowing the return fluid from the hydraulic actuator to flow through the line; a section for branching the fluid line into a plurality of fluid lines; a recovery circuit that serves as one of the branch fluid lines and includes the regenerating device; a discharge circuit that serves as the other of the branch fluid lines and discharges the return fluid to a tank; a flow control device disposed in the discharge circuit so as to be able to control a flow rate of the return fluid; an operation amount detector for detecting the operation amount on the operating device; and a control device configured to acquire the operation amount detected by the operation amount detector, calculate a target discharge flow rate of the return fluid flowing through the discharge circuit, and calculate a target regeneration flow…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.