Oil jets

[Bob Culver]

The origin of oil jet system was raked over previously but cannot recall just when. The Brescia Bugatti model as raced by Raymond Mays in early 20s had system. The model dated from 1910 but may have been variants. One from later model was published in Forum. I have read somewhere that the FN motorcycle engine influenced the Seven. The 748cc 1923 engine at least has Austin sytem. The Belgian firm may not have had UK patent coverage. Or Austin may have fluked gaining it.

just what happens to the flow with the crank whizzing by at 4,000 rpm is anyones guess? I guess the exact aim is academic.

Oil likely both enters and exits the conrod drillings.

At just 3 psi or so how far does the flow from any upward jets project?