Hydraulic tappet for an internal combustion engine

Details Hydraulic tappet for an internal combustion engine Hydraulic tappet for an internal combustion engine

1993-01-11

1993-08-31

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9051, F01L 124

Patent

active

052399532

ABSTRACT:
A hydraulic tappet comprises a body which comprises an outer tube, an inner tube and an upper portion which connects the two tubes at the upper end. Within the inner tube, there are provided inner and outer plungers. The outer plunger abuts a valve stem of an engine valve in a DOHC-type engine. The outer plunger is supported by a reinforcement member directly or via the inner plunger to provide high rigidity.

REFERENCES:
patent: 4590898 (1986-05-01), Buente et al.
patent: 4656978 (1987-04-01), Deuring
patent: 4694790 (1987-09-01), Kowal
patent: 4924825 (1990-05-01), Speil
patent: 5119774 (1992-06-01), Krieg et al.
patent: 5129372 (1992-07-01), Seiberth et al.

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