F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
123/243
F02B 23/00 (2006.01) F02B 23/08 (2006.01)
Patent
CA 1210285
21 Internal Combustion Engine Abstract An internal combustion engine having a cylinder 16, a cylinder head 10, and a piston 12 slidably mounted within the cylinder for reciprocating movement towards and away from the cylinder head, together defining a reaction chamber 22. The piston and cylinder head in- clude cooperating structure for inducing rotative move- ment in a fuel/air mixture within the cylinder before and after the combustion reaction. The structure com- prises at least two projections 50, 51 rising upwardly from a top the surface of the piston and disposed sym- metrically about a central axis in a side-by-side inter- fitting, "yin and yang" relationship. The projections are defined by respective inclined, lateral surfaces 50a, 51a that merge with horizontal surface portions 58, 59 of the piston, the horizontal extent of which taper from the base of the associated projection; the upper portion of the projections terminate in respec- tive circular edge surfaces 56, 57. The cylinder head includes an inner peripheral wall 20 that forms at least a portion of the combustion chamber and defines comple- mentary shaped recesses 52, 53 for receiving the respec- tive piston projections 50, 51 when the piston is sub- stantially at top dead center. The recesses have por- tions that are contoured substantially similar to the contour of the sloping projection surfaces 50a, 51a. When embodied on an internal combustion engine having poppet-type intake and exhaust valves, the valve heads 24, 26 of the valves define portions of the recesses.
423200
Motortech Inc.
Ridout & Maybee Llp
LandOfFree
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