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Figure 4 & 6

Figure 4 is a schematic cross-sectional view of a four-stroke engine according to the invention, having a variable volume combustion chamber with a ratio of 5 between the paired cylinders, shown at the end of the compression phase, in the strat-of-travel position of the variably timed transmission, with a 36 lead angle between the crank of the short-stroke crankshaft and the crank of the long-stroke crankshaft.

Figure 6 is a plan view of the cylinder head bottom of the paired cylinders of the same engine as shown in figures 4 and 5.

Figure 5 & 6

Figure 5 is a schematic cross-sectional view of the same engine as in figure 4, shown at the end of the compression phase, in the end-of-travel position of the variably timed transmission, with a 69 lead angle between the crank of the short-stroke crankshaft and the crank of the long-stroke crankshaft.

 

Figure 6 is a plan view of the cylinder head bottom of the paired cylinders of the same engine as shown in figures 4 and 5.

Figure 7 & 9

Figure 7 is a schematic cross-sectional view of a four-stroke engine according to the invention, having a variable volume combustion chamber with a ratio of 2.5 betweeen the paired cylinders, shown at the end of the compression phase, in the start-of-travel position of the variably timed transmission, with a 30 lead angle between the crank of the short-stroke crankshaft and the crank of the long-stroke crankshaft.

Figure 9 is a plan view of the cylinder head bottom of the paired cylinders of the same engine as shown in figures 7 and 8.

Figure 8 & 9

Figure 8 is a schematic cross-sectional view of the same engine as in figure 7, shown at the end of the compression phase, in the end-of-travel position of the variably timed transmission, with a 70 lead angle between the crank of the short-stroke crankshaft and the crank of the long-stroke crankshaft.

Figure 9 is a plan view of the cylinder head bottom of the paired cylinders of the same engine as shown in figures 7 and 8.

Figures 01-03 Figures 04-09 Figures 10-11