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. 08, 2025
Filed:
Apr. 28, 2021
Kubota Corporation, Osaka, JP;
Yuji Fukuda, Sakai, JP;
Kazuyoshi Arii, Sakai, JP;
Keisuke Miura, Sakai, JP;
Ryosuke Kinugawa, Sakai, JP;
Ikuhiro Uotani, Sakai, JP;
Satoshi Tajima, Sakai, JP;
Ryohei Sumiyoshi, Sakai, JP;
Kunihiro Suzuki, Sakai, JP;
KUBOTA CORPORATION, Osaka, JP;
Abstract
A hydraulic system for a work machine includes a hydraulic pump to supply a pilot fluid, and a hydraulic switch valve to be switched to a plurality of switching positions based on a pilot pressure. The pilot pressure is a pressure of the pilot fluid supplied from the hydraulic pump. The hydraulic system includes a direction switch valve to apply a first pilot pressure to the hydraulic switch valve to switch the hydraulic switch valve into one of the plurality of switching positions. The hydraulic system includes a pressure applying device to apply a second pilot pressure to the hydraulic switch valve. The second pilot pressure is lower than the first pilot pressure.