Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1990-10-12
1991-05-21
Okonsky, David A.
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9041, 123 9044, 74519, 74559, F01L 118
Patent
active
050165828
ABSTRACT:
A one-piece, cold-formed rocker arm of the cam-follower type includes a one-piece metal body which is cold-formed from a metal blank and is of U-shaped cross section at first and second end portions. The first end of said body has a bottom wall and two upwardly-extending side walls with a rounded recess in the bottom wall having a concave side facing downwardly for receiving an end of a lifter post on which the rocker arm can pivot. The second end of the body has a groove formed by a bottom wall with two downwardly-extending side walls and two doubled-back, upwardly-extending side walls which are structurally integral at lower edges with lower edges of the downwardly-extending side walls. The groove of the second end portion faces downwardly to receive an upper end of a valve stem. An intermediate portion of the body has two substantially parallel side walls which are structurally integral with the upwardly-extending side walls of the first and second end portions. The intermediate portion of the body is open between the parallel side walls and between the bottom walls of the first and second portions. The parallel side walls carry an axle on which a roller is rotatably mounted for engaging an overhead cam.
REFERENCES:
patent: 4614171 (1986-09-01), Malhotra
patent: 4628874 (1986-12-01), Barlow
patent: 4697473 (1987-10-01), Patel
patent: 4796483 (1989-01-01), Patel et al.
patent: 4825717 (1989-05-01), Mills
patent: 4829647 (1989-05-01), Anderson et al.
patent: 4913104 (1990-04-01), Mills
Gutchess, Jr. Allen D.
Henley Manufacturing Holding Company, Inc.
Lo Weilun
Okonsky David A.
LandOfFree
Rocker arm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rocker arm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rocker arm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-230101