Internal-combustion engines – Poppet valve operating mechanism – Rod
Patent
1993-02-16
1994-03-15
Argenbright, Tony M.
Internal-combustion engines
Poppet valve operating mechanism
Rod
123 9023, 123 9031, 123 9034, 74567, F01L 104
Patent
active
052938476
ABSTRACT:
A camshaft assembly comprising a shaft, a lobe, a gear, and a boss portion is disclosed. The lobe includes a first powdered metal and has a first density, while the gear includes a second powdered metal and has a second density. The boss portion is formed on one of the lobe or gear, and has an aperture sized to cooperate with the shaft and a periphery cooperating with the other of the lobe or gear to fix the lobe against rotation relative to the gear. The boss portion has a third density less than the density of the lobe or gear on which the boss portion is formed. A method of making a camshaft component is also disclosed.
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Powder Metallurgy Design Manual, Princeton, New Jersey, 1989, Published by Metal Powder Industries Federation, pp. 1-6, 34, 41, 73.
Hoffman Ronald J.
Olsen Jens K.
Argenbright Tony M.
Lo Weilun
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