Mitsubishi Heavy Industries Limited

Hiroshi Ogita

Motoki Ebisu

Hiroshi Suzuki

Takashi Shiraishi

Isao Tomita

Kenichiro Iwakiri

Noriyuki Hayashi

Yukio Yamashita

Byeongil An

Tadashi Kanzaka

Musashi Sakamoto

Hideaki Nishida

Keitaro Kamata

Shiro Yoshida

Byoniru An

An object is to improve fuel consumption, drivability and exhaust gas purification by efficiently converting waste heat of the engine into electrical power and storing the electrical power in a dedicated electric storage so that the boost pressure from the electric air compressor can be flexibly outputted. The electric supercharging device includes a steam cycle device configured to expand the steam generated by waste heat of an engine to rotate an expander, a first generator connected to the expander and configured to generate an electrical power by torque of the expander, a dedicated battery which stores the electrical power generated by the first generator, and an electric supercharger configured to drive a compressor with a motor driven by the electrical power of the dedicated battery to generate compressed air.

Electric supercharging device utilizing waste heat of internal combustion engine and power supplying method thereof

A turbocharger and a method of manufacturing a floating bush with which noise can be reduced, and the rotation speed can be increased. In a turbocharger in which a rotating shaft having a circular cross-section and connecting a turbine rotor and a compressor rotor is supported in a freely rotatable manner, at two axially separated positions via floating bushes, by an inner circumferential surface disposed so as to surround the rotating shaft in a bearing housing, an inner circumferential surface of each of the floating bushes has a non-circular shape in which the curvature of the cross-sectional shape varies in the circumferential direction.

Turbocharger and method of manufacturing floating bush

A cooling structure for a bearing housing for a turbocharger is provided. The cooling structure is configured so that the cooling structure has improved productivity, the occurrence of heat soak-back is reduced, and the cooling structure has improved cooling performance. The cooling structure cools both a bearing housingand a bearingby cooling water flowing through an annular cooling water pathformed in the bearing housing, and is provided with: a water path inletfor supplying the cooling water and a water path outletfor discharging the cooling water, which are provided in the bearing housingto communicate with the annular cooling water path; and a partial partitionin the bearing housingto partially close a water path which forms the shortest route between the water path inletand the water path outlet

Cooling structure of bearing housing for turbocharger

Cooling oil passes through a cooling oil passage ( ) on the inside of an iron core ( ), and cools the inside of the iron core ( ). Further, cooling air passes through a cooling air passage ( ) in the inside of the iron core ( ) and a clearance ( ) between the internal periphery of the iron core ( ) and the external periphery of a rotor ( ), and cools the inside of the iron core ( ) and the rotor ( ). Therefore, it is possible to effectively cool the internal periphery side of a stator ( ) and the rotor ( ). When a cooling oil is sprayed from the cooling oil passage ( ) into the cooling air passage ( ), it is possible to obtain a more effective cooling effect by utilizing the latent heat of vaporization of the mist of the cooling oil.

Cooling structure of generator

Growing community of inventors

Sagamihara, Japan

Hiroshi Ogita