F - Mech Eng,Light,Heat,Weapons – 01 – L
Patent
F - Mech Eng,Light,Heat,Weapons
01
L
123/183
F01L 1/00 (2006.01) F01L 1/348 (2006.01) F01L 1/352 (2006.01) F01L 1/356 (2006.01) F02B 75/02 (2006.01)
Patent
CA 1202850
-29- ABSTRACT "Internal combustion engine and cam drive mechanism therefor". An internal combustion engine has n member of cylinders, a piston in each cylinder connected to a crankshaft (2), each piston being in phase or out of phase with the others by A° or a multiple thereof (A = 720/n), cams for actuating inlet and exhaust valves to each cylinder, and a cam drive mechanism (5) which rotates the cams in phased relationship with the crankshaft (2) to open the valves in sequence for a desired angle of rotation of the crankshaft. The cam drive mechanism also includes means for combining the rotational movement of the cams with a phased oscillatory movement of the camshaft (3) and cams of variable amplitude about the axis of rotation at a frequency f times the crankshaft frequency so that over the period which the valves are opened and/or their timings variable, f has the following values: f = 2n when the number of cylinders n = 1; f = n or ? when n = 2; and f = ? when n = 3 or more. The selection of the frequency of the oscillations allows all the cams to be mounted on the same camshaft.
400079
Ford Motor Company Of Canada Limited
Sim & Mcburney
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