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:
Jul. 13, 2021
Filed:
May. 12, 2016
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Masahiro Kobayashi, Hiroshima, JP;
Yoshiyuki Okamoto, Hiroshima, JP;
Abstract
A variable-speed speed-up mechanism () includes an electric device () and a transmission device (). In the transmission (), an internal gear carrier shaft () forms a constant-speed input shaft (Ac), and a planetary gear carrier shaft () forms a variable-speed input shaft (Av). The electric device () includes a constant-speed electric motor () having a constant-speed rotor () which is configured to rotate the constant-speed input shaft (Ac), and a variable-speed electric motor () having a variable-speed rotor () which is connected to the variable-speed input shaft (Ac). The variable-speed speed-up mechanism () further includes a brake mechanism () which is configured to detect an abnormal state of the variable-speed electric motor (), stop the rotation of at least one of the variable-speed input shaft (Ac) and the variable-speed rotor (), and continue the rotation of the constant-speed rotor ().