The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2018
Filed:
Nov. 19, 2013
Kobelco Construction Machinery Co., Ltd., Hiroshima-shi, JP;
Koji Ueda, Hiroshima, JP;
KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima-shi, JP;
Abstract
A hydraulic circuit changeable between a state of executing a regeneration action and a state of stopping the regeneration action. The hydraulic circuit includes hydraulic pumps; a plurality of hydraulic actuators; a plurality of control valves provided for respective hydraulic actuators; a regeneration line through which return oil returned from a specific hydraulic actuator of the hydraulic actuators to a tank is supplied to a regeneration target; a regeneration valve; a meter-out valve; and a flow-path selection device selecting a flow path for the return oil from a first flow path supplying the return oil to the regeneration line to cause the regeneration action and a second flow path supplying the return oil to the control valve for the specific hydraulic actuator to stop the regeneration action.