Crankshaft-free drive shaft and piston assembly of a...

Details Crankshaft-free drive shaft and piston assembly of a... Crankshaft-free drive shaft and piston assembly of a...

2011-07-12

2011-07-12

Kamen, Noah (Department: 3783)

Internal-combustion engines

Transmission mechanism from piston

Crankshaft and connecting rod

C123S068000, C123S07000R

Reexamination Certificate

active

07975667

ABSTRACT:
A drive shaft and pistons assembly of a split-cycle four-stroke engine that contains a drive rotary shaft that supports at least two circular eccentrics pivotally connected to the first ends of connecting rods, the other ends of which are pivotally connected to the respective pistons. The circular eccentrics are angularly shifted with respect to each other by an angle optimal from the viewpoint of efficiency of the engine. The invention also provides a method consisting of removably securing the circular eccentrics of the aforementioned engine in different angular positions with respect to each other, testing the performance of the engine, removably mounting the circular eccentrics in a second and subsequently different angular positions with respect to each other, repeating the test of the engine, finding the angular positions of the circular eccentrics that provides the best performance of the split-cycle four-stroke engine, and creating a pre-production prototype of the split-cycle four-stroke engine based on the aforementioned finding.

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