Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Waseda University

Waseda Univerity

Shinya Hamamoto

Hiroyuki Yamada

Kenji Hashimoto

Yusuke Kinouchi

Yasuo Fujishima

Takashi Matsuzawa

Takuya Otani

Shigetoshi Shiotani

Tatsuhiro Kishi

Atsuo Takanishi

Tomohiro Tami

Ayanori Koizumi

Tomotaka Teramachi

Kazuhiro Uryu

Makoto Takeuchi

Hiroshi Yamazaki

Akinori Yoshioka

Yuki Ichise

Kyohei Watanabe

Tomoki Hase

Goshi Iketaka

Takashi Mitsumata

This electric compressor control device comprises: a control unit of an inverter which controls a motor that drives a compressor; a physical quantity calculation unit which calculates, on the basis of one or a plurality of predetermined detection values acquired from the inverter, a physical quantity that varies depending on a workload of the compressor; a number-of-revolutions acquisition unit which acquires the number of revolutions of the motor; a storage unit which stores information representing a first threshold that varies depending on the number of revolutions of the motor, and defines whether or not the physical quantity is a normal value; and a refrigerant abnormality determination unit which determines whether or not there is an abnormality in a refrigerant system by comparing the calculated physical quantity with the first threshold, depending on the acquired number of revolutions.

Electric compressor control device, electric compressor, and electric compressor control method

A scroll compressor includes a base seat portion which is integrally formed with one end surface of a shaft and in which a press-fitting hole exposing a first hole portion is formed. The base seat portion is disposed in a second portion of a penetration portion with a gap interposed between a drive bush body and the base seat portion.

Scroll compressor

A mobile robothaving a plurality of kinds of moving forms includes a body unithaving a front face and a back face, four limb unitshaving a plurality of limb-side drive shafts, and front end toolsprovided on a front end side of the limb units. A base end side of the limb unitis connected to the body unit. The four limb unitsare the same units. The body unitand the four limb unitsare movable by switching a front face side and a back face side so that a moving operation of the front face side and a moving operation of the back face side are symmetrical across the center of a thickness direction of the body unit

Mobile robot and front end tool

Growing community of inventors

Tokyo, Japan

Shinya Hamamoto