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. 13, 2021
Filed:
Jun. 15, 2017
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Yoshiyuki Okamoto, Hiroshima, JP;
Masahiro Kobayashi, Hiroshima, JP;
Abstract
A variable-speed accelerator includes: an electric device that generates a rotational driving force; and a planetary gear transmission device that changes a speed of the rotational driving force to a constant-speed input shaft and a variable-speed input shaft, and transmits the rotational driving force to a driving target via an output shaft, wherein the electric device includes a constant-speed electric motor including a constant-speed rotor that rotates the constant-speed input shaft in a second direction, and a variable-speed electric motor that includes a variable-speed rotor connected to the variable-speed input shaft, which functions as a generator in a generator mode and as an electric motor in an electric motor mode, and which rotates the output shaft at a maximum rotational speed by rotating the variable-speed rotor at the maximum rotational speed in a first direction.