公开(公告)号：US20210048103A1

公开(公告)日：2021-02-18

申请号：US16768864

申请日：2018-11-13

Applicant: Mazda Motor Corporation

Inventor： Masanori SASAKI ,  Masamichi FUJIKAWA ,  Kazuhiro YAMADA ,  Kensuke UEDA ,  Sayaka KATAYAMA ,  Yasuo MIURA ,  Takeyuki TANAKA ,  Hirokazu KOUNO ,  Takashi MIYAMOTO ,  Ryohei HANAMURE ,  Siyuan TAO

IPC: F16H63/30 ,  F16H3/66 ,  F16H57/10 ,  F16D65/12 ,  F16D55/36

Abstract: A power transmission device in an automatic transmission includes a friction tightening element (a second brake) having a drum member, and a transmission path constituent member (a third ring gear) coupled to the drum member via a coupling part extending circumferentially along the drum member, the drum member having low-rigidity parts (long holes) provided at a plurality of circumferential positions on the drum member in at least one of portions radially outside and inside the coupling part.

公开(公告)号：US20210317805A1

公开(公告)日：2021-10-14

申请号：US17190077

申请日：2021-03-02

Applicant: MAZDA MOTOR CORPORATION

Inventor： Jiro KATO ,  Taichi MASUOKA ,  Yuichi TANIGUCHI ,  Taketoshi YAMAUCHI ,  Hirofumi SHINOHARA ,  Akito KUMAMOTO ,  Takashi MIYAMOTO ,  Tatsuhiro ISHIDA

IPC: F02M26/30 ,  F02M26/32

Abstract: An EGR system comprising at least one of an EGR cooler and an EGR valve is arranged above an intake manifold. A pair of facing surfaces which face each other with a space are provided at the EGR system attached to the intake manifold and the intake manifold. A damper plate having elasticity is arranged between these facing surfaces. The damper plate is configured to have a larger thickness than the above-described space and have a smaller Young's modulus than each of a lower-side facing-surface portion and an upper-side facing-surface portion, and the damper plate is clamped between the lower-side facing-surface portion and the upper-side facing-surface portion.