Internal-combustion engines – Poppet valve operating mechanism – Rocker
Patent
1998-08-20
1999-10-12
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Rocker
123 9046, 123 9055, 123 9057, F01L 124
Patent
active
059641932
ABSTRACT:
A system for minimizing lash in the valve components of an internal combustion engine including a lash adjuster assembly with a body having a closed bore formed therein. A piston is slidingly received within the bore. A cam is in communication with one surface of the assembly for imparting motion thereto. The assembly also has a fluid reservoir and chamber formed therewithin. The chamber is formed between the bore bottom surface and the bottom surface of the piston. A valve opening is also formed in the assembly for providing fluid communication between the reservoir and the chamber. A check valve mechanism is in communication with the valve opening for selectively opening and closing the valve opening in response to angular position of the cam.
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Drouillard Jerome
Ford Global Technologies Inc.
Lo Weilun
May Roger
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