Clip for injector

Patent metadata

Field	Value
Publication number	US-11459989-B2
Application number	US-201816014767-A
Country	US
Kind code	B2
Filing date	Jun 21, 2018
Priority date	Jun 23, 2017
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

The present disclosure relates to a clip for an injector, in particular, the clip for the injector including a base portion and an elastic piece of the clip that elastically support the upper surface of a connector housing and the lower surface of an injector cup, thus attenuating fuel injection load. In addition, an engaging piece of the clip is inserted into an engaging portion of the injector cup, thus preventing the rotation of the injector.

First claim

What is claimed is:

1. A clip for an injector, comprising:
a base portion configured to tightly abut an upper surface of a connector housing of an injector to elastically support the upper surface of the connector housing of the injector;
a pair of first elastic portions elongated from both side parts of a rear end of the base portion and bending downward;
a pair of second elastic portions formed at both of the first elastic portions and bending upward; and
a pair of elastic pieces elongated from both of the second elastic portions and inclined upward toward a front direction, which is configured to tightly abut a lower surface of an injector cup of a fuel rail to elastically support the lower surface of the injector cup of the fuel rail,
wherein the base portion includes an injector receiving portion into which an upper body of the injector is configured to be inserted,
wherein a separation groove in a concavely recessed shape, is formed at a center of an inner circumferential surface of the injector receiving portion, the separation groove being disposed on a same plane as the injector receiving portion, so as to permit elastic deformation of the base portion in a radial direction, and
wherein the injector receiving portion and the separation groove communicate with each other, and an opening of the injector receiving portion is wider than that of the separation groove.

2. The clip for the injector of claim 1 ,
wherein a protrusion portion is formed at both sides of the inner circumferential surface of the injector receiving portion proximate to an inlet thereof for preventing a separation of the upper body of the injector.

3. The clip for the injector of claim 1 ,
wherein an upper surface of the base portion is configured to support a stopper protrusion formed on an outer circumference of the upper body of the injector.

4. The clip for the injector of claim 1 ,
wherein a tightly contacting portion, which is formed to be protruded closer toward the connector housing of the injector than the first elastic portions and configured to abut side surfaces of the connector housing, is interposed between the rear end of the base portion and an upper end of the first elastic portions, and
wherein the tightly contacting portion is bent at least two times to correspond to both sides of the connector housing.

5. The clip for the injector of claim 1 ,
wherein an engaging piece is formed to be protruded upward from the rear end of the base portion and configured to be inserted into an engaging hole of an engaging portion formed on the injector cup of the fuel rail, and
wherein a front surface of the engaging piece is configured to be inserted into a seating groove formed on a rear surface of the injector cup to be coupled in a rotational direction thereof.

6. The clip for the injector of claim 1 ,
wherein a pair of rotation prevention pieces are formed to extend forward at front ends portions of the base portion, respectively, and configured to receive a stopper portion formed on the upper surface of the connector housing of the injector between the pair of the rotation prevention pieces to be coupled in a rotational direction thereof, and
wherein the first elastic portions and the second elastic portions impart elasticity to vertical motion of the elastic pieces by the bent shape.

7. The clip for the injector of claim 6 ,
wherein a distance between the pair of the rotation prevention pieces corresponds to a width of the stopper portion.

Assignees

• Hyundai Kefico Corp

Inventors

• Oh Seung Hyuk
• Kang Young Il
• Koo Kwang Won
• Oh Yeon Jee

Classifications

• F02M2200/853

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

• F02M2200/8023

  the assembly involving use of quick-acting mechanisms, e.g. clips · CPC title

• F16B2/22

  of resilient material, e.g. rubbery material {(F16B2/205 takes precedence)} · CPC title