Cap for larger end portion of connecting rod of two-stroke inter

Details Cap for larger end portion of connecting rod of two-stroke inter Cap for larger end portion of connecting rod of two-stroke inter

1981-09-08

1983-05-24

Myhre, Charles J.

Internal-combustion engines

Transmission mechanism from piston

Including clutch

308 23, 123 4134, 123196R, F02B 7532

Patent

active

043845550

ABSTRACT:
An internal combustion engine having a connecting rod (7) secured to a crankshaft (5) over a bearing (6) by a cap (1), holes in the cap for lubricating the cap side of the connecting rod are improved by providing for at least two holes (A.sub.2, A.sub.3) a trapping groove extending from the hole in the direction of rotation (R) of said crankshaft, and a wall surface (D.sub.2, D.sub.3) parallel to the axis of the hole. In one embodiment the axis of the improved lubricating holes through the cap are disposed along radii of said crankshaft. In another embodiment the axis of each improved lubricating hole is canted a small angle (.theta.) to tilt the inlet of the hole in the direction of rotation.

REFERENCES:
patent: Re18080 (1931-05-01), Gotz
patent: 1352460 (1920-09-01), Konyuka
patent: 1773877 (1930-08-01), Severin
patent: 1837825 (1931-12-01), Mead
patent: 2239834 (1941-04-01), Williams
patent: 4142484 (1979-03-01), Buhl

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