Tohoku University

Honda Motor Co., Ltd.

Keihin Corporation

Kelk Ltd.

Kabushiki Kaisha Maekawa Seisakusho

Shigenao Maruyama

Atsuki Komiya

Norio Takahashi

Keisuke Kasahara

Wataru Kiyosawa

Yusuke Nishimura

Hiroaki Takechi

Morimasa Nagata

Seiji Kosaka

Yasuhiro Kawamura

Hajime Tsukui

Takuya Ouchi

Junnosuke Okajima

Shuichi Moriya

Junya Negishi

Yoshita Tsukamoto

Toshio Aihara

A cooling device includes a heat receiver that receives heat of an electronic component via a coolant, a heat discharger that discharges heat of the coolant from the heat receiver, and a circulation flow path through which the coolant flows from the heat receiver to the heat discharger and the coolant flows from the heat discharger to the heat receiver. The heat receiver is provided with an attachment surface to which a plurality of the electronic components are attached, a first flow path that communicates with the circulation flow path, and a plurality of surface area increasing members that communicate with the first flow path and that are provided on a rear surface of the attachment surface corresponding to the plurality of electronic components.

Cooling device

When a temperature of a semiconductor wafer is controlled to be a target temperature by raising the temperature of the semiconductor wafer, switching is performed so that a high-temperature circulating liquid at a temperature higher than the target temperature in a high-temperature tank is supplied into an inside-stage flow channel, and respective thermoelectric elements in a plurality of zones in a stage are controlled; and then, the temperature of the semiconductor wafer matches the target temperature and a desired in-plane temperature distribution of the semiconductor wafer is provided.

Apparatus and method for controlling temperature of semiconductor wafers

Disclosed is a piston cooling device wherein the cooling efficiency of a piston is improved by oil injected from an oil jet and supplied to a cooling passage provided in the piston, and the amount of cooling oil is reduced when an internal combustion engine is operated at maximum output. The piston cooling device is provided with a piston for an internal combustion engine, in which a circumferential passage and a cooling passage having an inlet passage and an outlet passage are provided, and an oil jet for injecting oil from an injection port to the inlet passage. The oil jet injects oil at every stroke of the piston so that a two-phase plug flow composed of gas and oil is formed in the cooling passage at least when an internal combustion engine is operated at maximum output.

Piston cooling device

A jet stream injection device for use in a heat exchanger of a fluidized-bed type in which a flat jet stream is injected toward a heat transmission coil of the heat exchanger from below this coil so that is runs along said cell so as to form a mixed-phase flow of a gas and solid particles around the heat transmission coil. The jet stream injection device has a net with meshes smaller than the size of the particles of a fluidized bed provided over an opening provided on the upstream side of a jet stream generating slit-shaped injection port element. The opening has a larger passage sectional area than the injection port element.

Jet stream injection system

Growing community of inventors

Miyagi, Japan

Shigenao Maruyama