CONNECTION STRUCTURE FOR FUEL PRESSURE SENSOR

Title:

CONNECTION STRUCTURE FOR FUEL PRESSURE SENSOR

Document Type and Number:

WIPO Patent Application WO/2021/161850

Kind Code:

A1

Abstract:

Provided is a connection structure for a fuel pressure sensor which can prevent relative rotation between an abutting surface of a fuel rail and a sealing surface of the fuel pressure sensor, and prevent or reduce deterioration of sealing properties. A connection structure (1) for a fuel pressure sensor connects a fuel pressure sensor (106) for detecting pressure of a fuel to a fuel rail (103) through which the fuel circulates. The connection structure (1) comprises: a cylindrical mounting boss (10) formed on the fuel rail (103) and having an external thread part (13) and an abutting surface (14); a mounting part (20) provided in a sensor body (106a) of the fuel pressure sensor (106) and having a contact surface (22a) abutted by the abutting surface (14) and a bearing surface (22b) located behind the contact surface (22a); and a nut (30) having an internal thread part (33) screwed into the external thread part (13), and a pressing part (34) for pressing the bearing surface (22b) toward the abutting surface (14) by screwing the internal thread part (33) into the external thread part (13).

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Inventors:

NISHIZAWA HIROYUKI (JP)

Application Number:

PCT/JP2021/003736

Publication Date:

August 19, 2021

Filing Date:

February 02, 2021

Export Citation:

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Assignee:

USUI CO LTD (JP)

International Classes:

F16L19/025; F02M37/00; F02M55/02; F02M69/46; F16L19/04

Foreign References:

JP2009275692A	2009-11-26
JP2019011695A	2019-01-24
JP3798113B2	2006-07-19
DE102008035492A1	2010-02-04
JP2001280218A	2001-10-10
JP2019011695A	2019-01-24
JP2000345942A	2000-12-12

Other References: