Internal-combustion engines – Poppet valve operating mechanism – Tappet
Patent
1993-01-08
1993-08-24
Wolfe, Willis R.
Internal-combustion engines
Poppet valve operating mechanism
Tappet
123 9048, 428408, 428469, F01L 114
Patent
active
052379671
ABSTRACT:
A powertrain component such as a valve lifter (10) for use in an internal combustion engine (12), the valve lifter (10) being positioned between a cam (14) and a valve stem (16). An amorphous hydrogenated carbon film (28) is formed on the component, the film (28) imparting the characteristics of low friction and wear resistance. Also disclosed is an interlayer which improves adherence by imparting the properties of improved absorption of mechanical stresses and chemical compatibility between the film (28) and the substrate (10). Methods for forming the film (28) and interlayer are also disclosed.
REFERENCES:
patent: 3545415 (1970-12-01), Mori
patent: 4597844 (1986-07-01), Hiraki et al.
patent: 4598675 (1986-07-01), Long
patent: 4661409 (1987-04-01), Kieser et al.
patent: 4873150 (1989-10-01), Doi et al.
patent: 4876996 (1989-10-01), Mayer et al.
patent: 4909198 (1990-03-01), Shiraya et al.
patent: 4932331 (1990-06-01), Kurihara et al.
patent: 4974498 (1990-12-01), Lemelson
Gangopadhyay Arup K.
Tamor Michael A.
Vassell William C.
Willermet Pierre A.
Ford Motor Company
Lo Weilun
Malleck Joseph W.
May Roger L.
Wolfe Willis R.
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