Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Patent
1996-10-31
1998-02-03
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Lubrication
123195C, 123198E, 123DIG6, F01M 910
Patent
active
057133182
ABSTRACT:
An extension tube for an internal combustion engine oil fill tube comprises an elongate bent cylindrical member having one threaded end adapted to engage within a threaded port in a valve cover. The tube includes a protruding nub thereon which is positioned to coact with a cavity between segmented threads in the port to produce a detent between the tube and the port when the tube is threaded into the port to a desired relative rotational orientation, for maintaining such orientation. The tube further includes a peripheral flange which compresses a high swell material seal member placed therebeneath against an area disposed about the port to ensure integrity of the engagement.
REFERENCES:
patent: 4516546 (1985-05-01), Choushi et al.
patent: 4608950 (1986-09-01), Payne et al.
patent: 5095860 (1992-03-01), Newell
patent: 5375569 (1994-12-01), Santella
DeJacimo Andrew J.
Tausk Edward F.
Lo Weilun
Navistar International Transportation Corp.
Sullivan Dennis K.
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