Light metal tappet with wear-resistant armouring made of a steel

Details Light metal tappet with wear-resistant armouring made of a steel Light metal tappet with wear-resistant armouring made of a steel

1992-01-22

1993-02-09

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

2988843, B23P 1102, F01L 124, F01L 114, F01L 116

Patent

active

051845830

ABSTRACT:
A light metal tappet particularly for the timing gear of an internal combustion engine comprising a tappet base body and a steel plate anchored at the contact face for the control cams of the timing gear and having a hardened surface, characterized in that the steel plate is made of an austenitic base material which is carbon dispersion hardened, has the same coefficient of thermal expansion as aluminium and comprises a nitrided surface.

REFERENCES:
patent: 4850095 (1989-07-01), Akao et al.
patent: 4873150 (1989-10-01), Doi et al.
patent: 4909198 (1990-03-01), Shiraya et al.
patent: 4924825 (1990-05-01), Speil
patent: 5129372 (1992-07-01), Sieberth et al.

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