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:
Dec. 31, 2024
Filed:
Jun. 27, 2023
Yanshan University, Qinhuangdao, CN;
Dingxuan Zhao, Qinhuangdao, CN;
Zhuxin Zhang, Qinhuangdao, CN;
Zhiguo Sun, Qinhuangdao, CN;
Xuezhong Ai, Qinhuangdao, CN;
Yanshan University, Qinhuangdao, CN;
Abstract
A hydraulic system for a rapid mooring device of an offshore operation helicopter includes a fuel tank, a hydraulic pump, an electric motor, a check valve, a pressure sensor, a filter, an overflow valve, a two-position four-way electromagnetic reversing valve group, a three-position four-way Y type hydraulically operated reversing valve, an stacked double throttle check valve, an stacked internally controlled hydraulic lock, an externally controlled large flow hydraulic lock, a safety valve, a cartridge valve, an energy accumulator, a pneumatic hydraulic pump, a thick and thin parallel single rod hydraulic cylinder, a mechanical claw unlocking cylinder, a centering lock unlocking cylinder and an emergency lock unlocking cylinder. The control method includes routine action control methods such as rapid capture, straightening, rapid release, transverse mechanical locking, and transverse hydraulic locking in a traction process of the helicopter, a safety protection control method, and an emergency action control method.