Fuel injector mounting device and fuel rail

Patent metadata

Field	Value
Publication number	US-10190557-B2
Application number	US-201514852999-A
Country	US
Kind code	B2
Filing date	Sep 14, 2015
Priority date	Sep 14, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A cup is in a bottomed tubular shape to receive an injector along an injector axis. A bracket is extended from a sidewall of the cup. The bracket includes at least one arm and a body. The at least one arm connects the body with the cup. The body forms a screw opening configured to receive a screw along a screw axis. The body has a pivot end on an opposite side of the screw axis from the injector axis.

First claim

What is claimed is:

1. An injector mounting device comprising:
a cup in a bottomed tubular shape and configured to receive an injector along an injector axis;
a bracket extended from a sidewall of the cup, wherein
the bracket includes at least one arm and a body,
the at least one arm connects the body with the cup,
the body forms a screw opening configured to receive a screw along a screw axis,
the body has a pivot end on an opposite side of the screw axis from the injector axis; wherein the body and the screw opening are asymmetric relative to the screw axis and the body is elongated on a side of the pivot end away from the injector axis, the body has an arm-side end connected with the at least one arm, the screw axis is at a distance L1 from the arm-side end, the screw axis is at a distance L2 from the pivot end, and the distance L2 is greater than the distance L1,
the bracket is in a U-shape,
the at least one arm includes two arms defining a gap therebetween,
the body is in a C-shape having two arm-side ends connected with the arms respectively,
the cup has a bottom end and the sidewall,
the sidewall has at least one key slot receiving one end of the at least one arm,
the at least one key slot is dented radially inward from a surface of the sidewall,
the at least one key slot is in a rectangular shape corresponding to a shape of one end of the at least one arm; and
a dampener is located in a gap between the arms.

2. The injector mounting device of claim 1 , wherein
the body is in a partial tubular shape having a notch opening to form a C-shaped section,
each of the arms is in a plate shape, and
the arms extend from the arm-side ends to form the gap extending from the notch opening.

3. The injector mounting device of claim 1 , wherein
the body has a bottom surface being a flat surface,
the body has a top surface being a flat surface, and
the bottom surface and the top surface are in parallel with each other.

4. The injector mounting device of claim 1 , wherein
the body has a body width W1,
the at least one arm has an arm width W2, and
the body width W1 is greater than or equal to the arm width W2.

5. The injector mounting device of claim 1 , wherein
the screw axis and the injector axis are in parallel with each other.

6. The injector mounting device of claim 1 , wherein
the at least one arm is reduced in cross sectional area relative to the body.

7. The injector mounting device of claim 6 , wherein
the at least one arm is reduced in size in both a width direction and a height direction.

8. The injector mounting device of claim 1 , wherein
the at least one arm has a through hole extending in a width direction.

9. The injector mounting device of claim 1 , wherein
the screw axis is at a distance L3 from an injector axis,
the screw axis is at a distance L4 from the pivot end, and
the distance L1, the distance L3, and the distance L4 have the following relation: L1<L4≤L3.

10. The injector mounting device of claim 1 , further comprising:
a positioner fixed to a top surface of the body, and
the positioner is configured to function as a washer to receive the screw.

11. The injector mounting device of claim 10 , wherein
the positioner has an inner aperture having an inner diameter, which is substantially same as an outer diameter of a stud of the screw.

12. The injector mounting device of claim 1 , wherein
the bracket is monolithic.

13. A fuel rail comprising:
a rail body in a tubular shape; and
an injector mounting device equipped to the rail body, wherein
the injector mounting device include a cup and a bracket,
the cup is in a bottomed tubular shape and configured to receive an injector along an injector axis,
the bracket is extended from a sidewall of the cup,
the bracket includes at least one arm and a body,
the at least one arm connects the body with the cup,
the body forms a screw opening configured to receive a screw along a screw axis, and
the body has a pivot end on an opposite side of the screw axis from the injector axis wherein the body and screw opening are asymmetric relative to the screw axis and the body is elongated on a side of the pivot end away from the injector axis, the body has an arm-side end connected with the at least one arm, the screw axis is at a distance L1 from the arm-side end, the screw axis is at a distance L2 from the pivot end, and the distance L2 is greater than the distance L1,
the bracket is in a U-shape,
the at least one arm includes two arms defining a gap therebetween,
the body is in a C-shape having two arm-side ends connected with the arms respectively,
the cup has a bottom end and the sidewall,
the sidewall has at least one key slot receiving one end of the at least one arm,
the at least one key slot is dented radially inward from a surface of the sidewall,
the at least one key slot is in a rectangular shape corresponding to a shape of one end of the at least one arm; and
a dampener is located in a gap between the arms.

14. The injector mounting device of claim 13 , wherein
the bracket is extended from the sidewall of the cup along the rail body.

15. The injector mounting device of claim 14 , wherein
the cup is cantilevered from the rail body,
the bracket is cantilevered from the cup, and
the bracket is supported by the rail body via the cup.

Assignees

• Denso Int America Inc
• Denso Corp

Inventors

• Roseborsky Steve
• Ramamurthy Dhyana

Classifications

• F02M69/465

  of fuel rails · CPC title

• F02M2200/856

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

• F02M2200/853

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

• F02M2200/857

  characterised by mounting fuel or common rail to engine · CPC title

• F02M61/168

  Assembling; Disassembling; Manufacturing; Adjusting · CPC title