Title:
SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2021/015137
Kind Code:
A1
Abstract:
In a solenoid valve (300, 300a), a valve portion (200) is provided with a sleeve (210) and a valve body (220) which is inserted into the sleeve, and a solenoid portion (100, 100a) is provided with: a stator core (40) including a magnetic attraction core (50, 50a), a sliding core (60), and a magnetic flux passage restricting portion (70) which restricts the passage of magnetic flux between the sliding core and the magnetic attraction core; a yoke (10) provided with a bottom portion, a side surface portion (12), and a thin-walled portion (17); a coil portion (20); a plunger (30); and a cylindrical base portion (80, 80a) comprising a magnetic body including a first cylinder portion (86) into which a first outer circumferential surface (211) of the sleeve is press fitted and which is fastened to the first outer circumferential surface, and a flange portion which has a larger outer diameter than the outer diameter of the first cylinder portion, is disposed outward of a second outer circumferential surface (52, 52a) of the magnetic attraction core in the radial direction, abuts the yoke inside the yoke, and is fixed to the thin-walled portion by crimping.
Inventors:
SAKAI AKIRA (JP)
Application Number:
PCT/JP2020/027933
Publication Date:
January 28, 2021
Filing Date:
July 17, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K27/04; F16K31/06; H01F7/126; H01F7/16
Foreign References:
| JP2009036328A | 2009-02-19 | |||
| US20100163128A1 | 2010-07-01 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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