公开(公告)号：US20170114711A1

公开(公告)日：2017-04-27

申请号：US15319129

申请日：2015-08-10

Applicant: MAZDA MOTOR CORPORATION

Inventor： Einosuke SUEKUNI ,  Masaaki SATO ,  Junji UMEMURA ,  Shuhei TSUJITA ,  Hisayoshi YAMADA

IPC: F02B31/02 ,  F02D9/10 ,  F16K1/22 ,  F02B37/02

CPC classification number: F02B31/02 ,  F02B31/06 ,  F02B37/02 ,  F02B37/12 ,  F02D9/106 ,  F02D9/1095 ,  F16K1/223 ,  F16K1/224 ,  Y02T10/144 ,  Y02T10/146

Abstract: An opening/closing valve structure for an engine is provided with a valve body for opening and closing an intake passage or an exhaust passage of the engine; a pair of bush members mounted on axial ends of the valve body; and a shaft member axially passing through one of the bush members and projecting from the bush member by a predetermined length within one end of the valve body. Each of the bush members is mounted in such a manner that a part of the bush member is axially received in an end of the valve body and the remaining part thereof axially projects from the end of the valve body. A portion of the shaft member projecting from the one of the bush members is connected to the valve body in such a manner that relative rotation of the shaft member with respect to the valve body is disabled.