公开(公告)号：US20220084730A1

公开(公告)日：2022-03-17

申请号：US17474441

申请日：2021-09-14

Applicant: DENSO CORPORATION

Inventor： Shinichi KONDOU ,  Kazuhiro SASAO ,  Masato ARAI

IPC: H01F7/08 ,  H01F7/16 ,  F16K31/06

Abstract: A solenoid valve includes a valve portion and a solenoid portion. The valve portion has a sleeve and a valve body. The solenoid portion includes a tubular coil portion, a magnetic yoke having a side surface portion and a bottom portion, a columnar plunger, a shaft, a stator core having a core shaft hole for sliding the plunger in the axial direction, and a base portion having a base shaft hole. In a radial thickness of the sleeve, a thickness of a part corresponding to an end outer peripheral surface is smaller than a thickness of a sliding portion of an inner peripheral surface of the sleeve, which is a portion on which the valve body slides.

公开(公告)号：US20230011647A1

公开(公告)日：2023-01-12

申请号：US17949086

申请日：2022-09-20

Applicant: DENSO CORPORATION

Inventor： Kazuhiro SASAO ,  Shinichi KONDOU

IPC: F16K31/06

Abstract: A solenoid valve has a valve portion and a solenoid portion. The valve portion includes a sleeve and a spool. The solenoid portion includes a yoke, a plunger, a stator core, and a base portion. The base portion includes a first inner diameter portion, a second inner diameter portion, and a connection surface that connects the first inner diameter portion and the second inner diameter portion to each other in a radial direction. The first inner diameter portion is fastened to a first outer peripheral surface of the sleeve. The second inner diameter portion is arranged radially outside a second outer peripheral surface of a magnetic attraction core. The base portion is in contact with the yoke. The connection surface and a sleeve end surface of the sleeve adjacent to the solenoid portion in the axial direction are spaced from each other in the axial direction.

公开(公告)号：US20220128166A1

公开(公告)日：2022-04-28

申请号：US17569234

申请日：2022-01-05

Applicant: DENSO CORPORATION

Inventor： Shinichi KONDOU ,  Masato ARAI ,  Kazuhiro SASAO

IPC: F16K31/06 ,  F16K27/04 ,  H01F7/08 ,  H01F7/16

Abstract: A solenoid valve includes a valve portion and a solenoid portion. The valve portion has a sleeve and a valve body inserted into the sleeve. The solenoid portion includes a stator core having a magnetic attraction core, a sliding core, a magnetic flux passage suppressing portion that suppresses the passage of magnetic flux between the sliding core and the magnetic attraction core, a magnetic yoke, a coil portion, a plunger, and a magnetic tubular base portion. The base portion is fastened to a first outer peripheral surface of an end on the solenoid portion side in the axial direction of the sleeve, is arranged outside a radial direction of a second outer peripheral surface of the end on the valve portion side in the axial direction of the magnetic attraction core, and comes into contact with the yoke inside the yoke.