Piston-type internal combustion engine with a rotationally symmetrical combustion chamber in the form of a single-layer hyperboloid or with a the hyperboloid similar combustion chamber

摘要

1457009 Direct injection IC engines BARKAS-WERKE VEB 26 March 1974 [2 April 1973] 13243/74 Heading F1B Fuel is injected into air swirling in a rotationally symmetrical waisted combustion chamber 2 from an injector 5 along a line 6, 6' or 6" extending inwardly of the chamber between a pair of parallel planes E 1 , E 2 which are parallel to the chamber axis 8 and spaced therefrom by respective distances equal to 0À2 and 0À35 of the smallest diameter d 1 of the chamber waist. This diameter d 1 and the depth l of the chamber are in the range 0À8 to 0À9 times the largest diameter d 2 of the chamber. The Specification discloses air swirl velocities, stroke to bore ratios and cylinder capacities and mentions that the chamber 2 may be a hyperboloid of revolution which may be disposed eccentrically of the piston axis. The line 6, 6' or 6" may extend more steeply in a plane perpendicular to the planes E 1 , E 2 , Fig. 2, relative to a plane perpendicular to the chamber axis than the genenatrix of the chamber 2.