Oiltight hydraulic tappet for controlling an internal combustion

Details Oiltight hydraulic tappet for controlling an internal combustion Oiltight hydraulic tappet for controlling an internal combustion

1985-07-08

1987-02-03

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9058, F01L99124

Patent

active

046402381

ABSTRACT:
Hydraulic tappet comprising a cup member, the latter sliding in a seat and housing a second cup member sliding in relation to the first in such a manner as to form a first chamber, and a flexible annular member located essentially inside the said second cup member in such a manner as to form a fluidtight second chamber connected hydraulically to the said first chamber; the said two chambers being filled with activating fluid the flow of which from the said second to the said first chamber being controlled by an on-off member.

REFERENCES:
patent: 4279226 (1981-07-01), Lampredi et al.
patent: 4397271 (1983-08-01), Gardner
patent: 4463713 (1984-08-01), Barale

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