公开(公告)号：US20170241329A1

公开(公告)日：2017-08-24

申请号：US15422600

申请日：2017-02-02

Applicant: MAZDA MOTOR CORPORATION

Inventor： Yoshiyuki UEHANE ,  Junji UMEMURA ,  Hideya HORII ,  Tomoaki FUJIYAMA

IPC: F02B37/18 ,  F01D9/02

CPC classification number: F02B37/183 ,  F01D9/026 ,  F01D17/146 ,  F02B37/025 ,  F05D2220/40 ,  Y02T10/144

Abstract: Disclosed herein is a technique for providing an engine supercharger allowing an exhaust gas to efficiently act on a turbine in a wide operating range. A turbine for use in a supercharger includes a turbine housing, a turbine scroll formed inside the housing continuously with a turbine lead-in route, and a turbine wheel to turn on an axis of rotation close to a tongue portion. The turbine lead-in route is partitioned by a partition wall into first and second lead-in routes. Exhaust variable valves are provided upstream of the second lead-in route in order to change the flow rate of the exhaust gas to be introduced. When viewed in the direction in which the axis of rotation extends, a downstream end of the partition is aligned with the axis of rotation and the tongue portion.

公开(公告)号：US20170082015A1

公开(公告)日：2017-03-23

申请号：US15256761

申请日：2016-09-06

Applicant: MAZDA MOTOR CORPORATION

Inventor： Manabu SUGIMOTO ,  Atsuhiro HATABU ,  Hideya HORII

IPC: F02B37/007 ,  F01N3/10 ,  F01N3/021

CPC classification number: F02B37/007 ,  F01N3/021 ,  F01N3/103 ,  Y02T10/144

Abstract: An exhaust device is configured to flow exhaust gas to be discharged from each of cylinders of an engine body. The engine body includes the cylinders arrayed in a row. The exhaust device includes an exhaust passage extending in the cylinder array direction; an exhaust outlet portion connected to an end of the exhaust passage in the cylinder array direction; a supercharger disposed at an end of the engine body in the cylinder array direction, and connected to the exhaust outlet portion; a lateral exhaust pipe connected to the supercharger, and disposed along a lateral surface of the engine body in the cylinder array direction; and an exhaust gas purification device disposed midway in the lateral exhaust pipe.