Injector fixing structure of fuel rail

Patent metadata

Field	Value
Publication number	US-2018372046-A1
Application number	US-201816018587-A
Country	US
Kind code	A1
Filing date	Jun 26, 2018
Priority date	Jun 27, 2017
Publication date	Dec 27, 2018
Grant date	—

Abstract

Disclosed herein is an injector fixing structure of a fuel rail. The injector fixing structure for a fuel rail module is configured such that an injector cup that includes a slot formed at a side thereof and an injector that includes an anti-rotation pin inserted into the slot are coupled to each other by a clip. The injector fixing structure also includes a lock formed integrally with the anti-rotation pin, and a fixing member coupled to the slot and allowing the lock to be secured when the anti-rotation pin is inserted into the slot such that the anti-rotation pin is prevented from being separated from the slot. The present invention may prevent separation of the injector from the fuel rail during transportation of the fuel rail module, thereby improving assemblability of the fuel rail module in engine assembly and increasing process efficiency.

First claim

What is claimed is:

1 . An injector fixing structure of a fuel rail for a fuel rail module wherein an injector cup that includes a slot formed at a side thereof and an injector that includes an anti-rotation pin inserted into the slot are coupled to each other by a clip, the injector fixing structure comprising:
a lock formed integrally with the anti-rotation pin; and a fixing member coupled to the slot and allowing the lock to be secured when the anti-rotation pin is inserted into the slot such that the anti-rotation pin is prevented from being separated from the slot.

2 . The injector fixing structure of claim 1 , wherein the fixing member is provided at a lower end portion of the slot of the injector cup such that after the anti-rotation pin is inserted through a space between the slot and the fixing member, the lock is secured to an upper end portion of the fixing member.

3 . The injector fixing structure of claim 1 , wherein the anti-rotation pin is divided into first to third pin members.

4 . The injector fixing structure of claim 3 , wherein the lock is formed on a front surface of the second pin member that is a middle pin member of the first to third pin members.

5 . The injector fixing structure of claim 4 , wherein the second pin member is elastically deformed in a rearward direction upon insertion into the slot such that the lock is allowed to pass through the fixing member, and is then restored to an original shape thereof after the lock passes through the fixing member, whereby the lock is secured to the fixing member.

6 . The injector fixing structure of claim 3 , wherein the lock is formed on an outer side surface of each of the first and third pin members that are left and right oppositely disposed pin members of the first to third pin members.

7 . The injector fixing structure of claim 6 , wherein the slot includes:
a stepped portion disposed at a lower end portion of the slot by protruding from each of opposite inside surfaces of the slot such that the lock is secured to the stepped portion.

8 . The injector fixing structure of claim 7 , wherein the first and third pin members are elastically deformed in left and right directions upon insertion into the slot such that the lock is allowed to pass through the stepped portion of the slot, and is then restored to original shapes thereof after the lock passes through the stepped portion, whereby the lock is secured to the stepped portion.

9 . The injector fixing structure of claim 3 , wherein the lock is formed on a rear surface of the second pin member that is a middle pin member of the first to third pin members.

10 . The injector fixing structure of claim 9 , wherein the slot includes:
a stepped portion disposed at a lower end portion of the slot by protruding in a forward direction such that the lock is secured to the stepped portion.

11 . The injector fixing structure of claim 10 , wherein the second pin member is elastically deformed in the forward direction upon insertion into the slot such that the lock is allowed to pass through the stepped portion of the slot, and is then restored to an original shape thereof after the lock passes through the stepped portion, whereby the lock is secured to the stepped portion.

Assignees

• Hyundai Kefico Corp

Inventors

• Oh Seung-Hyuk
• Kang Young-Ii
• Koo Kwang-Won
• Oh Yeon-Jee

Classifications

• F02M2200/853

  involving use of quick-acting mechanism, e.g. clips · CPC title

• F02M2200/856

  characterised by mounting injector to fuel or common rail, or vice versa · CPC title

• F02M61/14 Primary

  Arrangements of injectors with respect to engines; Mounting of injectors · CPC title

• F02M61/168

  Assembling; Disassembling; Manufacturing; Adjusting · CPC title

• F02M55/025

  Common rails · CPC title