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:
May. 26, 2020
Filed:
Jun. 15, 2016
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Yoshiyuki Okamoto, Hiroshima, JP;
Masahiro Nakashima, Hiroshima, JP;
Abstract
A variable speed accelerator includes: an electric driving device; and a transmission device changing the speed of a rotational driving force generated by the electric driving device and transmits the changed rotation driving force to a driving target. The transmission device includes: a sun gear; a sun gear shaft fixed to the sun gear; a planetary gear that meshes with the sun gear; an internal gear that meshes with the planetary gear; a planetary gear carrier including a planetary gear carrier shaft; and an internal gear carrier including an internal gear carrier shaft. The electric driving device includes: a constant-speed motor including a constant-speed rotor; and a variable-speed motor including a variable-speed rotor. The variable speed accelerator further includes: a rotation rate controller that issues a speed instruction; a torque measuring device; and a control device holding an instruction value of the speed instruction.