公开(公告)号：US11242775B2

公开(公告)日：2022-02-08

申请号：US17008725

申请日：2020-09-01

Applicant: DENSO CORPORATION

Inventor： Takanobu Aochi ,  Hitoshi Maegawa ,  Tomohiro Hayashi ,  Hiroki Takahashi ,  Kenji Tada

IPC: F01L1/344 ,  F01L1/46 ,  F01L1/047

Abstract: A valve timing adjustment device includes a drive-side rotating body that rotates in conjunction with a crankshaft, a driven-side rotating body that rotates integrally with a camshaft, a speed reduction mechanism that transmits rotation while allowing relative rotation between the drive-side rotating body and the driven-side rotating body. The driven-side rotating body includes a fastening portion fastened to the end portion of the camshaft by a center bolt, a bearing portion that is located radially outward of the fastening portion and that axially supports the drive-side rotating body, and a fitting outer surface that is fitted to a regulating member on a side where an outer diameter of an axial contact surface with the other member on one side and the other side in the axial direction of the driven-side rotating body is large.

公开(公告)号：US09856839B2

公开(公告)日：2018-01-02

申请号：US15170023

申请日：2016-06-01

Applicant: DENSO CORPORATION

Inventor： Motoya Kanbara ,  Fumiaki Arikawa ,  Satoshi Sugawara ,  Daiji Ueda ,  Hiroki Tanada ,  Toshiaki Hijima ,  Hitoshi Maegawa ,  Naoki Toda

IPC: F02M51/06 ,  F02M45/10 ,  F02M47/02 ,  F02M63/00

CPC classification number: F02M45/10 ,  F02M47/027 ,  F02M51/0603 ,  F02M51/0607 ,  F02M63/0026 ,  F02M2200/21 ,  F02M2200/704

Abstract: A fuel injection valve includes a body including a first chamber that supplies fuel of a first pressure, a second chamber that supplies fuel of a second pressure, and an injection hole, a valve chamber member including a valve chamber connectable to the first chamber and the second chamber, a control chamber member including a control chamber connectable to the first chamber, a needle pressed by pressure of fuel in the control chamber in a direction that causes fuel injection from the injection hole to stop, an actuator, a valve element that selectively connects the first chamber, second chamber, and the valve chamber according to the actuator extending and contracting, and a transmission mechanism that when the actuator extends, transmits the force to the needle as a force in a direction that causes fuel to be injected from the injection hole.