公开(公告)号：US20210231088A1

公开(公告)日：2021-07-29

申请号：US17052168

申请日：2019-05-17

Applicant: EAGLE INDUSTRY CO., LTD. ,  DENSO CORPORATION

Inventor： Toshiaki IWA ,  Yoshihiro OGAWA ,  Yusuke SATO ,  Tatsumi OGURI ,  Yusuke KONDO ,  Keigo OHATA

IPC: F02M55/04

Abstract: A damper device arranged in a housing space formed between a device main body and a cover member includes a pair of damper bodies each having a plate and a diaphragm and having an enclosed space sealed with gas. A biasing device is provided between the pair of damper bodies arranged facing each other and configured to bias the damper bodies from one side of the device main body and the cover member to the other side of the device main body and the cover member, stay members each extending from an outer peripheral edge portion of each of the damper bodies and brought into contact with other side, and a frame member arranged on one side of the device main body and the cover member and having a stopper portion configured to restrict movement of the damper bodies in the direction of the other side.

公开(公告)号：US20200224608A1

公开(公告)日：2020-07-16

申请号：US16828051

申请日：2020-03-24

Applicant: DENSO CORPORATION

Inventor： Keita KURIGAMI ,  Shinichiro KOSHIMOTO ,  Yoshihito SUZUKI ,  Hiroshi INOUE ,  Tatsumi OGURI ,  Keigo OHATA ,  Takayuki MAKIHARA ,  Taiki KUKITA

IPC: F02M21/02 ,  F02M37/00

Abstract: A high-pressure pump includes a pressurizing chamber forming portion, a suction passage forming portion, a seat member, a valve member, a cylindrical member, a needle, a movable core, a biasing member, a fixed core, and a coil including a winding portion. The coil generates an attractive force between the fixed core and the movable core when the winding portion is energized. The coil includes an outer cylindrical surface and multiple inner cylindrical surfaces that have different diameters. The multiple inner cylindrical surfaces are arranged in order of increasing diameter in a direction toward a pressurizing chamber. The movable core has an end surface that faces the fixed core, and the end surface of the movable core is located between a center, in an axial direction, of a smallest diameter one of the plurality of inner cylindrical surfaces and a center, in an axial direction, of the outer cylindrical surface.

公开(公告)号：US20200224625A1

公开(公告)日：2020-07-16

申请号：US16828122

申请日：2020-03-24

Applicant: DENSO CORPORATION

Inventor： Keigo OHATA ,  Shinichiro KOSHIMOTO ,  Yoshihito SUZUKI

IPC: F02M63/00 ,  F04B53/10

Abstract: A high-pressure pump includes a pressurizing chamber forming portion including a cylindrical inner peripheral wall that defines a pressurizing chamber, a plunger, a housing including a housing outer peripheral wall, a valve member, an electromagnetic driving unit, a discharge passage portion, and a fixed portion that is connected to the housing. The fixed portion has multiple bolt holes. The multiple bolt holes are arranged radially outward of the housing outer peripheral wall in a circumferential direction when viewed along a direction of an axis of the cylindrical inner peripheral wall. The high-pressure pump is virtually divided into a first region and a second region by a virtual surface on which axes of adjacent ones of the multiple bolt holes and an axis of the cylindrical inner peripheral wall extend. Both the electromagnetic driving unit and the discharge passage portion are located in the first region or the second region.