公开(公告)号：US10982592B2

公开(公告)日：2021-04-20

申请号：US16440372

申请日：2019-06-13

申请人： MAZDA MOTOR CORPORATION

发明人： Kiyotaka Tanaka ,  Ryo Itonaka ,  Shinichiro Maeda ,  Shingo Karikawa ,  Hiromi Yoshioka

IPC分类号： F02B53/12 ,  F02B55/02 ,  F02B55/08 ,  F02B55/14 ,  F01C21/08 ,  F02B53/00

摘要： Each of recesses in outer circumferential surfaces of rotors includes: a leading-side area extending forward from a longitudinal center of an associated one of the outer circumferential surfaces in a rotation direction of the rotor, and a trailing-side area continuous with the leading-side area, and extending rearward from the longitudinal center in the rotation direction. From the longitudinal center of the associated one of the outer circumferential surfaces in the rotation direction, forward extension of the leading-side area is longer than rearward extension of the trailing-side area. The leading-side area has a larger volume than the trailing-side area.