公开(公告)号：US20230160769A1

公开(公告)日：2023-05-25

申请号：US17798822

申请日：2021-02-02

Applicant: USUI CO., LTD.

Inventor： Hiroyuki NISHIZAWA

IPC: G01L19/00 ,  F02M55/02

CPC classification number: G01L19/0007 ,  F02M55/025 ,  F02M55/004

Abstract: A connection structure for a fuel pressure sensor that connects a fuel pressure sensor for detecting a pressure of a fuel to a fuel rail in which the fuel to be supplied to an internal-combustion engine flows, includes a tubular attachment boss that is formed in the fuel rail and includes a male screw portion and an abutting surface, an attachment portion that is provided in a sensor body of the fuel pressure sensor, and includes a contact surface that abuts to the abutting surface and a bearing surface provided behind the contact surface, and a nut including a female screw portion that is screwed on the male screw portion and a pressing portion that presses the bearing surface to the abutting surface by screwing the female screw portion on the male screw portion.

公开(公告)号：US20170292484A1

公开(公告)日：2017-10-12

申请号：US15513992

申请日：2015-07-27

Applicant: USUI CO., LTD.

Inventor： Hiroyuki NISHIZAWA ,  Shuji SUZUKI

IPC: F02M55/02 ,  F02M55/04

CPC classification number: F02M55/02 ,  F02M55/025 ,  F02M55/04 ,  F02M69/465 ,  F02M2200/03 ,  F02M2200/315 ,  F02M2200/8084 ,  F02M2200/9015

Abstract: To improve the ability to layout delivery pipes by maintaining flexibility in a mounting position of an inlet pipe to a delivery pipe main body. A delivery pipe for gasoline comprising a flat shaped delivery pipe main body 1 provided with a pair of facing wide walls 2, 3 and a pair of facing narrow walls 4, 5 that are more narrow than the pair of wide walls 2, 3, wherein an inlet pipe 7 is disposed and connected to the narrow wall 4 of the delivery pipe main body 1, and a connecting portion 10 of the inlet pipe 7 and the narrow wall 4 is covered continuously by a reinforcing material 11 from the connecting portion 10 over the wide walls 2, 3, thereby reinforcing the connection portion 10.

公开(公告)号：US20180051665A1

公开(公告)日：2018-02-22

申请号：US15559829

申请日：2016-02-01

Applicant: USUI CO, LTD.

Inventor： Hiroyuki NISHIZAWA ,  Shuji SUZUKI

IPC: F02M55/02

CPC classification number: F02M55/025 ,  F02M2200/05 ,  F02M2200/8076 ,  F02M2200/9053 ,  F02M2200/9076

Abstract: To obtain a gasoline direct injection rail that enables plating treatment to be easily and reliably performed on the inside of a rail body and an inlet part, also, that includes an orifice, and that has excellent mechanical properties. In a gasoline direct injection rail comprising a steel rail body 4, an inlet part 6 provided integrally with or separately from a first end 5 of the rail body 4 and comprising therein a communication passage 7 in communication with a fuel passage of the rail body 4, and a plurality of injector holders in communication with the fuel passage, a stainless orifice member 1 formed separately from the rail body 4 is securely disposed in the communication passage 7 of the inlet part 6.

公开(公告)号：US20200271079A1

公开(公告)日：2020-08-27

申请号：US16645791

申请日：2018-07-04

Applicant: USUI CO., LTD.

Inventor： Hiroyuki NISHIZAWA

IPC: F02M55/00 ,  F02M55/02

Abstract: The flexibility of the attachment angle and attachment interval of the member (e.g., injector) attached to the joint member is increased to improve the flexibility of layout even in the case of the forged rail for high-pressure direct injection. In addition, the manufacturing cost can be reduced while keeping high strength of the joint portion. A rail body 1 manufactured by forging, the rail body 1 having a through hole 4 opened on a wall surface 3 for communicating a fuel passage 2 extending in an axial direction with an outside; anda tubular joint member 6 manufactured separately from the rail 1 body and fixed to the rail body 1 at a position of the through hole 4 for allowing a fuel to flow from the fuel passage 2 through the through hole 4 are provided.