Hydraulic lash adjuster anti-rotation clip

Patent metadata

Field	Value
Publication number	US-9624794-B2
Application number	US-201514799983-A
Country	US
Kind code	B2
Filing date	Jul 15, 2015
Priority date	Aug 6, 2014
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A hydraulic lash adjuster arrangement is provided that includes a cylinder head including a bore and at least one hydraulic fluid gallery. The hydraulic lash adjuster arrangement includes a hydraulic lash adjuster assembly including a housing positioned in the bore of the cylinder head and including an annular body that includes a port on a radially outer wall of the housing. A plunger is arranged within the annular body of the housing and is axially displaceable therein. A clip including a circular body is arranged radially between the housing and the cylinder head. The clip includes at least one first tab extending radially outwardly that engages the at least one hydraulic fluid gallery and at least one second tab extending radially inwardly that engages the port.

First claim

What is claimed is:

1. A hydraulic lash adjuster arrangement comprising:
a cylinder head including a bore and at least one hydraulic fluid gallery; and
a hydraulic lash adjuster assembly including:
a housing positioned in the bore of the cylinder head including an annular body that includes a port on a radially outer wall of the housing;
a plunger arranged within the housing that is axially displaceable therein; and
a clip including a circular body and at least one first tab extending radially outwardly and at least one second tab extending radially inwardly, wherein the at least one first tab engages the at least one hydraulic fluid gallery, and the at least one second tab engages the port.

2. The hydraulic lash adjuster assembly of claim 1 , wherein the at least one first tab and the at least one second tab are arranged circumferentially aligned with each other on radially opposite faces of the circular body.

3. The hydraulic lash adjuster assembly of claim 1 , wherein the at least one first tab and the at least one second tab are arranged circumferentially offset from each other on radially opposite faces of the circular body.

4. The hydraulic lash adjuster assembly of claim 1 , wherein the clip is formed from a polymeric material.

5. The hydraulic lash adjuster assembly of claim 1 , wherein the clip is formed from a stamped metal.

6. The hydraulic lash adjuster assembly of claim 1 , wherein the clip is formed from a stamped steel.

7. The hydraulic lash adjuster assembly of claim 1 , wherein the at least one first tab is formed from an elastically deformable material.

8. The hydraulic lash adjuster assembly of claim 1 , wherein the at least one first tab includes two of the first tabs, and one of the first tabs engages a first portion of the at least one hydraulic fluid gallery, and the other of the first tabs engages a second portion of the at least one hydraulic fluid gallery on an opposite side of the at least one hydraulic fluid gallery from the first portion of the at least one hydraulic fluid gallery.

9. The hydraulic lash adjuster assembly of claim 1 , wherein the at least one first tab and the at least one second tab have the same dimensions.

10. A hydraulic lash adjuster assembly comprising:
a housing positioned including an annular body that includes a port on a radially outer wall of the housing;
a plunger arranged within the housing that is axially displaceable therein; and
a clip including a circular body and at least one first tab extending radially outwardly that engages at least one hydraulic fluid gallery formed on a cylinder head, and at least one second tab extending radially inwardly that engages the port.

11. A hydraulic lash adjuster arrangement comprising:
a cylinder head including a bore and at least one hydraulic fluid gallery; and
a hydraulic lash adjuster assembly including:
a housing positioned in the bore of the cylinder head including an annular body that includes a port on a radially outer wall of the housing;
a plunger arranged within the housing that is axially displaceable therein; and
a clip including a circular body and at least one first tab extending radially outwardly and at least one second tab extending radially inwardly, wherein the port is located within an annular groove on the radially outer wall of the housing, and the clip is positioned within the annular groove.

12. The hydraulic lash adjuster assembly of claim 11 , wherein the at least one first tab and the at least one second tab are arranged circumferentially aligned with each other on radially opposite faces of the circular body.

13. The hydraulic lash adjuster assembly of claim 11 , wherein the at least one first tab and the at least one second tab are arranged circumferentially offset from each other on radially opposite faces of the circular body.

14. The hydraulic lash adjuster assembly of claim 11 , wherein the clip is formed from a polymeric material.

15. The hydraulic lash adjuster assembly of claim 11 , wherein the clip is formed from a stamped metal.

16. The hydraulic lash adjuster assembly of claim 11 , wherein the clip is formed from a stamped steel.

17. The hydraulic lash adjuster assembly of claim 11 , wherein the at least one first tab is formed from an elastically deformable material.

18. The hydraulic lash adjuster assembly of claim 11 , wherein the at least one first tab and the at least one second tab have the same dimensions.

19. The hydraulic lash adjuster assembly of claim 11 , wherein the at least one first tab includes two of the first tabs, and one of the first tabs engages a first portion of the at least one hydraulic fluid gallery, and the other of the first tabs engages a second portion of the at least one hydraulic fluid gallery on an opposite side of the at least one hydraulic fluid gallery from the first portion of the at least one hydraulic fluid gallery.

Assignees

• Schaeffler Technologies Ag

Inventors

• Shewell Jeffrey

Classifications

• F01L1/2405 Primary

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