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:
Nov. 23, 2021
Filed:
Sep. 12, 2019
Kyb Corporation, Tokyo, JP;
Keita Matsuzaka, Kanagawa, JP;
Kenji Suzuki, Kanagawa, JP;
KYB CORPORATION, Tokyo, JP;
Abstract
A fluid pressure drive device includes a flushing circuit configured to discharge a working fluid from one of the pair of main passages to a tank. The flushing circuit has a low pressure selection valve provided between the pair of main passages and configured to be switched by a pressure difference between the pair of main passages, the low pressure selection valve being configured to select the main passage on the low pressure side; and a flushing passage configured to lead the working fluid passing through the low pressure selection valve to the tank. The flushing passage has a first orifice and a bent portion formed on the downstream side of the first orifice.