公开(公告)号：US11193398B2

公开(公告)日：2021-12-07

申请号：US16415008

申请日：2019-05-17

Applicant: DENSO CORPORATION

Inventor： Yasuhiro Hamaoka ,  Tomoyuki Fukuyama

IPC: F01L1/344 ,  F01L1/356

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.

公开(公告)号：US09840946B2

公开(公告)日：2017-12-12

申请号：US15111022

申请日：2015-01-14

Applicant: DENSO CORPORATION

Inventor： Tomohiro Kanaya ,  Yasuhiro Hamaoka

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047

CPC classification number: F01L1/3442 ,  F01L1/047 ,  F01L2001/3443 ,  F01L2001/34453 ,  F01L2001/34463 ,  F01L2201/00 ,  F01L2820/044

Abstract: A variable valve timing control device has, as control modes for adjusting inflow and outflow of oil with an OCV, a lock mode for moving a lock pin in a locking direction, a phase control mode for controlling a camshaft phase by a target phase in accordance with an operation state of an engine, and an oil filling mode for filling an advancement chamber and a retardation chamber with the oil in a state that the lock pin moves in the locking direction, before shifting from the lock mode to the phase control mode. When the oil filling mode has been selected, a target position of a spool is set based on viscosity of the oil, and the position of the spool is controlled so as to be the set target position.