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. 12, 2020
Filed:
Oct. 06, 2015
Rotary machine state observation device, rotary machine, and rotary machine state observation method
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Tadashi Yoshida, Tokyo, JP;
Shinji Ogawa, Tokyo, JP;
Koichi Sakamoto, Nagasaki, JP;
Yukihiro Iwasa, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A state observation device () uses an ADC () to digitize a detection signal from a gap sensor () at a low-speed sampling period and uses a separation unit () to separate the digitized detection signal into vane detection signals considered to be for the detection of a vane of a compressor impeller and non-vane detection signals considered not to be for the detection of a vane. Further, the determination unit () extracts a vane peak detection signal considered to be for a vane peak by comparing a vane detection signal with vane detection signals corresponding to other vanes and non-vane detection signals, and a shaft vibration and tip clearance are determined as states of the compressor impeller on the basis of the extracted vane peak detection signal. Thus, the state observation device () is capable of observing the state of a rotary machine without carrying out high-speed sampling.