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:
Aug. 12, 2025
Filed:
May. 13, 2024
Fu Sheng Industrial Co., Ltd., Taipei, TW;
Wei-Hsu Lin, Taipei, TW;
Yao-Chung Liu, Taipei, TW;
FU SHENG INDUSTRIAL CO., LTD., Taipei, TW;
Abstract
A two-stage refrigerant compressor and an operation method thereof are disclosed. The two-stage refrigerant compressor () includes: a housing (); a first compressor module () having first screw rods () and a first motor () driving the first screw rods () to rotate; a second compressor module () having second screw rods () and a second motor () driving the second screw rods () to rotate; an adjustment mechanism () having a first slide valve () and a second slide valve (); a middle pressure sensor () configured to acquire a current middle pressure; and a processor configured to receive data of the current middle pressure, control rotating speeds of the first motor () and the second motor (), and control locations of the first slide valve () and the second slide valve ().