Invention Grant
- Patent Title: Fuel injection valve
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Application No.: US16333522Application Date: 2017-08-09
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Publication No.: US10794348B2Publication Date: 2020-10-06
- Inventor: Takahiro Saito , Ryuta Kinoshita , Nobuaki Kobayashi
- Applicant: Hitachi Automotive Systems, Ltd.
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2133e6d0
- International Application: PCT/JP2017/028878 WO 20170809
- International Announcement: WO2018/066226 WO 20180412
- Main IPC: F02M61/04
- IPC: F02M61/04 ; B05B1/30 ; F02M51/06 ; F02M61/18 ; F02M61/16

Abstract:
A fuel injection valve includes: a valve seat member to which the valve seat is formed; a welding portion between the valve seat member and the cylindrical member, which is provided on the base end side of the stepped surface, the valve seat member being assembled to be press-fit in the cylindrical member so that a tip end side abutment pressure between an inner circumference surface of the cylindrical member, and a tip end side outer circumference surface portion of the valve seat member which is on the tip end side of the stepped surface is smaller than a base end side abutment pressure between the inner circumference surface of the cylindrical member, and a base end side outer circumference surface portion of the valve seat member which is on the base end side of the stepped surface portion.
Public/Granted literature
- US20190257277A1 Fuel Injection Valve Public/Granted day:2019-08-22
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