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. 14, 2026
Filed:
Aug. 21, 2024
Beijing University of Chemical Technology, Beijing, CN;
Xin Pan, Beijing, CN;
Dehong Ge, Beijing, CN;
Haiqi Wu, Beijing, CN;
Jinji Gao, Beijing, CN;
Zhinong Jiang, Beijing, CN;
BEIJING UNIVERSITY OF TECHNOLOGY, Beijing, CN;
Abstract
The present application provides a pneumatic-liquid auto-balance actuator with a large diameter. An intermediate sleeve is interference-sheathed on an outer side wall of a liquid storage tray. An outer side wall of the intermediate sleeve is axially provided with four gas circulation grooves. The bottom of a stator is axially provided with four gas injection channels, which are of unequal depths and are in one-to-one correspondence to the gas circulation grooves. The liquid storage tray comprises four liquid storage cavities uniformly distributed in a circumferential direction. Gas injection pipes are arranged in the liquid storage cavities and are in communication with and connected to the gas circulation grooves. A communication pipe is in communication and connected between the liquid storage cavities which are provided opposite each other.