Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dongsoo Kim
Sangmin Gwon
Taerang Jung
Sangki Bae
Date of Patent
October 31, 2023
Patent Application Number
17601183
Date Filed
April 5, 2019
Patent Citations
Patent Primary Examiner
Patent abstract
A hydraulic machinery may include: a boom actuator including a large chamber and a small chamber; a tank; and an energy recovery circuit provided between the boom actuator and the tank, wherein the energy recovery circuit includes: a discharge valve provided between the large chamber and the tank to allow or block the flow of fluid from the former to the latter; a regeneration valve connecting the large chamber and the small chamber to allow or block the flow of fluid from the former to the latter; a recovery part for recovering energy; and a first valve provided between the large chamber and the recovery part to allow or block the flow of fluid from the former to the latter.
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