Patent · US Active

Apparatus and method for recuperation of hydraulic energy

US9382927B2 · kind B2 · utility

1Cited by

7References

13Claims

0Family size

Assignee

National Oilwell Varco Norway AS · NO

Inventors

David Bengt Johan Ankargren · Kristiansand, NO
Jochen Pohl · Partille, SE

Key dates

Filing date	May 18, 2011
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Jul 9, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2211/88
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An apparatus for recuperation of hydraulic energy from an actuator comprises a first hydraulic machine having a first drive and a second hydraulic machine having a second drive mechanically coupled to the first drive. The first hydraulic machine is in hydraulic communication with an actuator, and the second hydraulic machine (20) is in hydraulic communication with an accumulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.