公开(公告)号：US20210381402A1

公开(公告)日：2021-12-09

申请号：US17408773

申请日：2021-08-23

Applicant: DENSO CORPORATION

Inventor： Tomoyuki FUKUYAMA ,  Tetsuro MITSUTANI

IPC: F01L1/344

Abstract: A valve timing adjustment device includes: a housing member; a vane rotor that includes vanes and is securely coupled to a driven shaft and is rotatable relative to the housing member when the vane rotor receives a pressure of hydraulic oil introduced into hydraulic chambers; a fixing member that fixes the vane rotor to the driven shaft; and a bearing section that rotatably supports the housing member. The housing member includes a winding section that is formed at an outer peripheral surface of the housing member. A transmission member is wound around the winding section. The bearing section and the winding section at least partially overlap with each other when viewed in a direction perpendicular to an axial direction.

公开(公告)号：US20190271240A1

公开(公告)日：2019-09-05

申请号：US16415008

申请日：2019-05-17

Applicant: DENSO CORPORATION

Inventor： Yasuhiro HAMAOKA ,  Tomoyuki FUKUYAMA

IPC: F01L1/344

Abstract: A friction member is clamped between a driven shaft of an internal combustion engine and a vane rotor and includes an oil passage hole. The oil passage hole communicates between a first oil passage of the driven shaft a second oil passage of the vane rotor. Each of positioning arrangements includes a primary engaging portion of the vane rotor and a secondary engaging portion of the friction member. The positioning arrangements are configured to limit relative rotation between the vane rotor and the friction member in a communicating state where the first oil passage and the second oil passage are communicated with each other through the oil passage hole.