Mechanical retention member for valvetrain components

Patent metadata

Field	Value
Publication number	US-11028737-B2
Application number	US-201716765057-A
Country	US
Kind code	B2
Filing date	Nov 22, 2017
Priority date	Nov 22, 2017
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A retention member is configured to be supported within a cylinder head of an engine and includes a body portion and a plurality of arms. The body portion has an opening configured to receive a fuel injector of the engine. Additionally, the plurality of arms extends from the body portion and is configured to be positioned over a portion of a cross-head of the engine. The plurality of arms is spaced apart from the cross-head during routine operation of the engine.

First claim

What is claimed is:

1. A retention member configured to be supported within a cylinder head of an engine, comprising:
a body portion having an opening configured to receive a fuel injector of the engine; and
a plurality of arms extending from the body portion and configured to be positioned over a portion of a cross-head of the engine, the plurality of arms being spaced apart from the cross-head during routine operation of the engine.

2. The retention member of claim 1 , wherein the body portion includes apertures configured to receive removable mechanical fasteners, and the body portion is removably coupled with the cylinder head through the removable mechanical fasteners.

3. The retention member of claim 1 , wherein the body portion is integrally formed with the plurality of arms.

4. The retention member of claim 3 , wherein the body portion and plurality of arms are comprised of a metallic stamping.

5. The retention member of claim 1 , wherein each of the plurality of arms defines an upside-down U shape configured to receive a portion of the cross-head within a recess of the U shape.

6. The retention member of claim 1 , wherein the body portion and the plurality of arms are stationary relative to movement of the cross-head.

7. The retention member of claim 1 , wherein the plurality of arms is configured to retain a position of the cross-head during movement of the cross-head which contacts at least one of the plurality of arms.

8. The retention member of claim 1 , wherein the body portion is coupled to a clamp of the fuel injector.

9. A retention member configured to be operably coupled to a valvetrain assembly of an engine, comprising:
a body portion positioned intermediate a first valve and a second valve of the valvetrain assembly;
a first plurality of arms configured to be positioned relative to the first valve; and
a second plurality of arms configured to be positioned relative to the second valve, and the body portion, first plurality of arms, and second plurality of arms are stationary relative to movement of the first and second valves, wherein each of the first and second plurality of arms defines a recess configured to receive a portion of a cross-head of the valvetrain assembly.

10. The retention member of claim 9 , wherein the body portion and the first and second plurality of arms are removable from the valvetrain assembly.

11. The retention member of claim 9 , wherein the first and second plurality of arms are configured to retain a position of the cross-head during movement of the cross-head which contacts at least one of the arms.

12. The retention member of claim 9 , wherein the first and second pluralities of arms are spaced apart from the cross-head during routine operation of the engine.

13. A retention member configured to be operably coupled to a valvetrain assembly of an engine, comprising:
a body portion positioned intermediate a first valve and a second valve of the valvetrain assembly;
a first plurality of arms configured to be positioned relative to the first valve; and

a second plurality of arms configured to be positioned relative to the second valve, and the body portion, first plurality of arms, and second plurality of arms are stationary relative to movement of the first and second valves, wherein the body portion is configured to be removably coupled with a fuel injector of the engine.

14. An engine, comprising:
a cylinder having a body portion and a cylinder head portion configured to be coupled with the body portion;
a valvetrain assembly supported on at least a portion of the cylinder and including an intake valve, an exhaust valve, a first cross-head operably coupled to the intake valve, and a second cross-head operably coupled to the exhaust valve; and
a retention member configured to maintain a position of the first and second cross-heads relative to the intake and exhaust valves, and the retention member is removable relative to the cross-heads.

15. The engine of claim 14 , further comprising a fuel injector and the retention member is removably coupled to the fuel injector.

16. The engine of claim 14 , wherein the retention member is stationary relative to movement of the cross-heads.

17. The engine of claim 14 , wherein the retention member is configured to retain a position of at least one of the cross-heads during movement of the at least one of the cross-heads which contacts the retention member.

18. The engine of claim 14 , wherein the retention member includes a body portion and a plurality of arms, and the plurality of arms is positioned above the cross-heads and spaced apart from the cross-heads by a gap.

19. The engine of claim 18 , wherein each of the plurality of arms includes a recess configured to receive a portion of the cross-heads therein.

Assignees

• Cummins Inc
• Mitchum Gregory J
• Bellinger Steven M
• Gonzalez Richard
• Haegele Glen T
• Boggs Troy

Inventors

• Mitchum Gregory J
• Bellinger Steven M
• Gonzalez Richard
• Haegele Glen T
• Boggs Troy

Classifications

• F02F1/242

  Arrangement of spark plugs or injectors · CPC title

• F01L1/26 Primary

  characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder (with coaxial valves F01L1/28) · CPC title

• F02F2001/247

  the valve stems being orientated in parallel with the cylinder axis · CPC title

• F02M61/14

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

• F01L1/2405

  by means of a hydraulic adjusting device located between the cylinder head and rocker arm · CPC title