Cylinder head for internal combustion engine, comprises compression chamber, inlet valve, superimposed exhaust valve also sparking plug and twin distributor controlled electromagnets to drive each valve

摘要

The large admission valve is actuated by four valve stems (3) which are bolted to a soft iron plate (22) attracted to admission valve coils (14). The smaller concentric and superimposed exhaust valve is driven by a valve stem (4) attached to the mid point of a soft iron plate (18) which has guides (19) and is attracted to exhaust valve coils (15). A crankshaft driven distributor energises pairs of admission and exhaust valves on different cylinders successively