Mitsubishi Heavy Industries Limited

Mitsubishi Electric Corporation

Hiroyuki Waku

Hiroyuki Akita

Masatsugu Nakano

Yu Hirotani

Hiroyasu Iwabuki

Koji Kise

Mio Motodani

Kosuke Nakano

A ventilator () includes: an air supply fan () to supply outdoor air to a room; an air exhaust fan () to exhaust indoor air, out of the room; and a total heat exchanger () which is made with partition boards () being moisture-permeable flat parts and with spacer boards () being corrugated parts, the partition boards and the spacer boards being alternately stacked, the total heat exchanger exchanging heat between the outdoor air and the indoor air; and thereby suppresses ice formation. The ventilator () includes: an indoor temperature sensor (); an indoor humidity sensor (); an outdoor temperature sensor (); and a control unit () to control operation of the air supply fan () and the air exhaust fan () on a basis of at least one state quantity estimated by substituting the indoor air temperature, the indoor air humidity, and the outdoor air temperature in a total heat exchanger model formula () representing characteristics of the total heat exchanger ().

Ventilator

A spar () is formed by stacking a signal-line layer (), which includes a resin layer () having a plurality of signal lines () embedded therein, on a carbon-fiber prepreg ().

Carbon-fiber-reinforced plastic structure

A spar as a carbon-fiber-reinforced plastic structure according to the present invention includes a carbon fiber prepreg, and a conduction layer provided on a surface of this carbon fiber prepreg to limit conduction in a thickness direction of a carbon fiber and secure conduction in a surface direction of the carbon fiber.

Carbon-fiber-reinforced plastic structure and fuel tank

A rotating electric machine with a built-in control device that can be downsized. The rotating electric machine with a built-in control device includes a rotor including a permanent magnet of sensor use provided on a rear side of a rotor shaft, a front side housing fixed with a first bearing supporting a front side of the rotor shaft, a motor frame including a rotor and a stator, a heat sink fixed with a second bearing supporting the rear side of the rotor shaft, a control substrate mounting a rotary sensor, a microcomputer, and a driving circuit. The microcomputer controls the driving circuit based on signals from the rotary sensor and drives a plurality of switching elements. At least one of a smoothing condenser and a noise reduction coil, connected to the switching elements, is arranged at a far rear side of the control substrate.

Rotating electric machine with a built-in control device and electric power assist steering system

A spar includes a conductive layer laminated and formed on a carbon-fiber prepreg, and a jumper formed of a conductor which penetrates through the conductive layer and the carbon-fiber prepreg.

Growing community of inventors

Tokyo, Japan

Hiroyuki Waku