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:
Jun. 19, 2018
Filed:
Jan. 18, 2013
Volvo Construction Equipment Ab, Eskilstuna, SE;
Hea-Gyoon Joung, Busan, KR;
Sung-Gon Kim, Changwon-si, KR;
Abstract
A flow control device for a construction machine including a first hydraulic cylinder and a second hydraulic cylinder connected to a hydraulic pump, which is connected to an engine. A first control valve and a second control valve are also included. A regeneration flow path is configured to supplement and reuse hydraulic fluid that returns to a hydraulic tank during a retractable drive of the first hydraulic cylinder. A regeneration valve is installed in the regeneration flow path. A pressure compensation type flow control valve is installed in a meter-in flow path of a spool of the first control valve, and is configured to limit the flow rate of the hydraulic fluid supplied from the hydraulic pump to the first hydraulic cylinder during a combined operation of the first and second hydraulic cylinders.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile