Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Compressor Corporation

Waseda University

Yasuyoshi Tozaki

Takeshi Yoshimi

Hiroyuki Sonobe

Isamu Shiotsu

Masaaki Shibata

Hisao Miyake

Katsuhiko Shoda

Tomohiro Numajiri

Masashi Sasaki

Akihiko Umeda

Akihiko Yano

Susumu Matsumoto

Atsushi Higashio

Takayoshi Hirayama

Provided is a compressor that is capable of, with a simple configuration, facilitating the insertion operation of a compressor bundle by reliably preventing tilting thereof during insertion into a chamber; and that also makes it possible to reduce a roller size without increasing the contact pressure of rollers for sliding the compressor bundle. A small tilt sensor that detects a relative angle difference &#x3b8; of the compressor bundle with respect to the bundle casing is provided at at least one location in the compressor bundle to be inserted into the chamber inside the bundle casing. In addition, the weight of the compressor bundle during the insertion into the chamber is supported by rollers provided at a bottom portion near the front end of the compressor bundle by making the rollers come in contact with an inner circumferential wall surface of the chamber.

Compressor and method of assembling the same

A first rotary shaft and a second rotary are rotatable around a rotation axis. The second rotary shaft has a cylindrical supporting part that covers an end section of the first rotary shaft. A case supports the first and second rotary shafts. A first rolling bearing is disposed between the first rotary shaft and the case and rotatably supports the first rotary shaft. A second rolling bearing is disposed between the supporting part and the first rotary shaft and supports the first rotary shaft and the second rotary shaft such that they are rotatable relative to each other. A transmission part of the second rotary shaft transmits to the second rolling bearing a preload force that pushes the second rotary shaft to the first rotary shaft side. A load-receiving part of the case receives the preload force transmitted from the second rolling bearing to the first rolling bearing.

Speed increasing/decreasing apparatus

A micro-traction drive includes an inner ring formed rotatably supported about an axis; an outer ring having a larger diameter than the inner ring; rolling elements rolling while being in contact with an outer circumferential surface of the inner ring and an inner circumferential surface of the outer ring; a retaining portion that keeps the rolling elements apart from one another; a pressing portion that applies a preload between the inner ring and the rolling elements and between the outer ring and the rolling elements; and an input shaft that is formed to have a smaller diameter than the inner circumferential surface of the inner ring, is disposed adjacent to the inner ring, and transmits a rotational driving force to the inner circumferential surface of the inner ring. One of the outer ring and the retaining portion is connected to the output shaft, and the other thereof is fixed.

Micro-traction drive

There is provided a compact and highly durable variable-speed traction drive transmission device. A traction drive transmission device which uses the traction of rolling bodies K arranged between an input shaft Si and an output shaft So to change the number of revolutions of the input shaft Si into a desired transmission ratio and output from the output shaft So, has a rotation axis of the rolling bodies K arranged at an incline so that it is not orthogonal to the axis of the input shaft Si and the output shaft So, and there is provided: a load regulation camwhich automatically changes a preload applied to the rolling bodies K corresponding to a torque of the input shaft Si; and a differential type transmission ratio variation mechanism using a worm gear, which is connected to a retainerserving as a traction input-output member of the rolling bodies K, and performs number of revolutions control of the retainerto change the transmission ratio.

Torque transmission structure, traction drive transmission device, and steering device for vehicle

A power generating wind turbine includes parts and components installed in or on a nacelle which are made smaller and lighter, thus facilitating maintenance. A main shaft, a gear-box for speeding up rotation of the main shaftand a generatordriven by an output of the gear-boxare provided on a nacelle bed plate. The main shaftis connected to an input shaftend of the gear-boxvia a double-row tapered roller bearing. The main shaftis supported to a wall portion Wof the nacelle bed platewith the double-row tapered roller bearingbeing interposed therebetween. The main shaftis formed in an annular shape having its outer diameter Dlarger than its axial directional length L

Power generating wind turbine

A wind turbine generator including a nacelle having reduced size and weight is provided. The wind turbine generator includes a nacelle disposed on a tower. The nacelle includes a main shaft that is connected to a rotor head equipped with blades and that integrally rotates with the rotor head, a gearbox that increases the rotational speed of the main shaft and that outputs the resulting rotational speed, and a generator driven by the output from the gearbox. In the wind turbine generator, a drivetrain extending from the main shaft to the generator via the gearbox is disposed in the rotor head.

Growing community of inventors

Nagasaki, Japan

Yasuyoshi Tozaki