Cam follower roller device

Patent metadata

Field	Value
Publication number	US-10072533-B2
Application number	US-201615350434-A
Country	US
Kind code	B2
Filing date	Nov 14, 2016
Priority date	Dec 17, 2015
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

The cam follower roller device provides a tappet body, a pin and a roller mounted on the pin. The tappet body provides holes for mounting pin ends of the pin on the tappet body. The device further provides one deformable ring disposed between each pin end of the pin and an inner wall of the associated hole of the tappet body.

First claim

The invention claimed is:

1. A cam follower roller device comprising:
a tappet body,
a pin having two pin ends, an outer pin surface located between the two pin ends and having a cylindrical shape, the pin having an initial central axis,
a roller mounted on the pin, the tappet body having holes for mounting the two pin ends of the pin on the tappet body, and
each of the two pin ends having one deformable ring disposed between the outer pin surface adjacent the associated pin end and an inner wall of the associated hole of the tappet body such that the one deformable ring only radially contacts the outer pin surface and such that the pin may tilt angularly relative to the intial central axis.

2. The device according to claim 1 , wherein each deformable ring is secured to the tappet body.

3. The device according to claim 1 , wherein an outer surface of each deformable ring is in radial contact with the inner wall of the associated hole of the tappet body.

4. The device according to claim 1 , wherein a bore of each deformable ring is in radial contact with the associated pin end of the pin.

5. The device according to claim 1 , wherein each deformable ring is made from deformable material.

6. The device according to claim 5 , wherein each deformable ring is made from elastically deformable material.

7. The device according to claim 1 , wherein the tappet body is made in one part.

8. A cam follower roller device comprising:
a tappet body,
a pin,
a roller mounted on the pin, the tappet body having holes for mounting pin ends of the pin on the tappet body,
one deformable ring disposed between each pin end of the pin and an inner wall of the associated hole of the tappet body, and
one sleeve interposed between each pin end of the pin and the associated deformable ring.

9. The device according to claim 8 , wherein each pin end of the pin is press-fitted into the associated sleeve.

10. The device according to claim 8 , wherein each sleeve comprises at least one tubular portion interposed between each pin end of the pin and the associated deformable ring.

11. The device according to claim 10 , wherein each sleeve further comprises a radial flange connected to the tubular portion and extending radially outwards, the radial flange being axially located on the side opposite to the roller with respect to the tappet body.

12. The device according to claim 11 , wherein the radial flange of each sleeve extends one end of the tubular portion.

13. The device according to claim 11 , wherein the radial flange of each sleeve axially comes into contact with at least one of the associated deformable ring and the tappet body.

14. The device according to claim 8 , wherein each sleeve is made from metal.

Assignees

• Hauvespre Benoit
• Berruet Nicolas
• Chambonneau Charles
• Chollet Mickael
• Hingouet Gwenael
• Viault Samuel
• Skf Ab

Inventors

• Hauvespre Benoît
• Berruet Nicolas
• Chambonneau Charles
• Chollet Mickael
• Hingouet Gwenael
• Viault Samuel

Classifications

• F01L2301/00

  Using particular materials · CPC title

• F01L2305/02

  Mounting of rollers · CPC title

• F04B1/0435

  Arrangements for disconnecting the pistons from the actuated cam · CPC title

• F02M59/44

  Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; {Pumps having transducers, e.g. to measure displacement of pump rack or piston} · CPC title

• F02M59/102 Primary

  Mechanical drive, e.g. tappets or cams (F02M45/063 takes precedence) · CPC title