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:
Mar. 24, 2020
Filed:
Feb. 23, 2015
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Abstract
This variable electric motor system includes an electrically powered device () and a planet gear transmission device (). One of a sun gear shaft (), a planet gear carrier shaft (), and an internal gear carrier shaft () of the planet gear transmission device constitutes an output shaft (Ao), another shaft constitutes a constant-speed input shaft (Ac), and another shaft constitutes a variable-speed input shaft (Av). The electrically powered device includes: a constant-speed electric motor () including a constant-speed rotor () that rotates about the axis (Ar), and connected to the constant-speed input shaft; and a variable-speed electric motor () including a variable-speed rotor () that rotates about the axis, and connected to the variable-speed input shaft. The variable-speed rotor has a shaft insertion hole () formed in the axial direction, the hole having a cylindrical shape centered on the axis. The constant-speed rotor is inserted through the hole.