Roller follower axle retention

Details Roller follower axle retention Roller follower axle retention

1985-10-30

1986-12-16

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9051, 123 9044, 123 9027, 123 9039, 291567B, F01L 116, B21K 120

Patent

active

046288740

ABSTRACT:
A hydraulic tappet has a roller receiving recess in one end thereof defining spaced parallel axle supporting wall portions. Cross holes are formed in the supporting wall portions with an annular groove formed in the inner periphery of each cross hole. An end of an axle with a roller thereon is received in each cross hole. The ends of the axle are deformed to bulge radially outwardly to contact the inner periphery of the cross holes. The grooves prevent stress fracturing and increase axle push-out loads.

REFERENCES:
patent: 2322173 (1943-06-01), Spencer
patent: 2322174 (1943-06-01), Spencer
patent: 2935878 (1960-05-01), Wirsching
patent: 3139076 (1964-06-01), Flaherty
patent: 3668945 (1972-06-01), Hofmann
patent: 4089234 (1978-05-01), Henson et al.
patent: 4361120 (1982-11-01), Kueny

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