公开(公告)号：US09816407B2

公开(公告)日：2017-11-14

申请号：US14884061

申请日：2015-10-15

Applicant: DENSO CORPORATION

Inventor： Shuhei Oe ,  Shota Toda ,  Yoshiki Endo ,  Yuu Yokoyama ,  Toshiki Fujiyoshi

IPC: F01L1/344 ,  F02D13/02

CPC classification number: F01L1/3442 ,  F01L2001/34456 ,  F02D13/0238 ,  Y02T10/18

Abstract: When a lock demand of a camshaft phase occurs, a control mode of a hydraulic control valve is switched to a locking mode after the camshaft phase is controlled to a lock phase, and a lock pin is moved to a lock position. The camshaft phase is locked at the lock phase, and timing advance and timing retard chambers communicate with each other through a back space. In this state, a locking time filling control is executed. In the locking time filling control, the control mode of a hydraulic control valve is switched to a filling mode, the hydraulic oil is supplied to a timing advance chamber, both of the timing advance chamber and the timing retard chamber are filled with the hydraulic oil, the back space is filled with the hydraulic oil, and thereafter the control mode of the hydraulic control valve is returned to the locking mode.

公开(公告)号：US09759101B2

公开(公告)日：2017-09-12

申请号：US14745812

申请日：2015-06-22

Applicant: DENSO CORPORATION

Inventor： Toshiki Fujiyoshi ,  Takashi Yamaguchi

IPC: F01L1/34 ,  F01L1/344

CPC classification number: F01L1/3442 ,  F01L1/344 ,  F01L2001/34423 ,  F01L2001/3445 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34473 ,  F01L2001/34483

Abstract: A valve timing control apparatus has a regulation member to fix a phase. The regulation member has a main regulation member and a sub regulation member. The main regulation member is inserted into a recess part to regulate the phase. The sub regulation member has an engagement part engageable with the main regulation member in an escape direction Y and disengageable from the main regulation member in an insertion direction X. Further, the sub regulation member has a pressure reception part that receives pressure in the escape direction Y from hydraulic fluid in an operation chamber. The main regulation member is urged in the insertion direction X by a main resilient member. Further, the sub regulation member is urged in the insertion direction X by a sub resilient member. The main regulation member moves in the escape direction Y only by hydraulic fluid, and moves in the insertion direction X only by the resilient member.

公开(公告)号：US10060305B2

公开(公告)日：2018-08-28

申请号：US15334583

申请日：2016-10-26

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shota Toda ,  Shuhei Oe ,  Toshiki Fujiyoshi ,  Haruhito Fujimura ,  Yu Yokoyama

IPC: F01L1/344 ,  F01L1/356 ,  F02D13/02

CPC classification number: F01L1/3442 ,  F01L1/356 ,  F01L2001/3443 ,  F01L2001/34436 ,  F01L2001/34443 ,  F01L2001/34486 ,  F01L2201/00 ,  F01L2800/14 ,  F01L2820/041 ,  F02D13/0203

Abstract: A control device has two modes as control modes of an electric power supply to an electromagnetic solenoid, which are used when a first determining unit determines that a difference between a sensed value of a phase and a target value of the phase exceeds a permissible range. One of the modes is a special mode that is used when a second determining unit determines that the sensed value of the phase reaches a threshold value. Another one of the modes is a normal mode that is used when the second determining unit determines that the sensed value of the phase does not reach the threshold value. In the special mode, the control device controls supply of the electric power to the electromagnetic solenoid in such a manner that an opening degree of an advancing port is larger than the opening degree of the advancing port in the normal mode.

公开(公告)号：US20140083383A1

公开(公告)日：2014-03-27

申请号：US14074825

申请日：2013-11-08

Applicant: DENSO CORPORATION

Inventor： Toshiki Fujiyoshi ,  Takashi Yamaguchi

IPC: F01L1/344

CPC classification number: F01L1/3442 ,  F01L1/344 ,  F01L2001/34423 ,  F01L2001/3445 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34473 ,  F01L2001/34483

Abstract: A valve timing control apparatus has a regulation member to fix a phase. The regulation member has a main regulation member and a sub regulation member. The main regulation member is inserted into a recess part to regulate the phase. The sub regulation member has an engagement part engageable with the main regulation member in an escape direction Y and disengageable from the main regulation member in an insertion direction X. Further, the sub regulation member has a pressure reception part that receives pressure in the escape direction Y from hydraulic fluid in an operation chamber. The main regulation member is urged in the insertion direction X by a main resilient member. Further, the sub regulation member is urged in the insertion direction X by a sub resilient member. The main regulation member moves in the escape direction Y only by hydraulic fluid, and moves in the insertion direction X only by the resilient member.

Abstract translation: 气门正时控制装置具有用于固定相的调节构件。 调节构件具有主调节构件和副调节构件。 主调节构件插入凹部以调节相位。 辅助调节构件具有接合部，该接合部能够沿着排出方向Y与主调节构件接合，并且在插入方向X上与主调节构件脱离接合。此外，副调节构件具有受压部， Y来自操作室中的液压流体。 主调节构件通过主弹性构件沿插入方向X被推压。 此外，副调节构件通过副弹性构件沿插入方向X被推压。 主调节构件仅通过液压流体在逸出方向Y上移动，并且仅通过弹性构件沿插入方向X移动。