| 摘要 |
Five essential components (1, 2, 3, 4, 5) enable to coordinate the four strokes of the engine, by combining the gas distribution and tightness in the combustion chamber to the alternating motion of the piston. A rotory distribution shaft (1) synchronized with the engine crankshaft is provided with intake (8) and exhaust (7) orifices with outlets in the spherical surface (6) which communicate with the cylinder at the corresponding strokes. Orifices which are not intercommunicated are made to coincide with the intake and exhaust ports to the outside. A closing bush (2) in intermittent and sliding and compensated contact on the spherical surface (6), and a conical spring (3) make the combustion chamber fluid-tight during the compression and expansion strokes, and conduct through the orifice (9) in the lower body (4) the intake and exhaust gas at each corresponding stroke. A lower body (4) and an upper body (5) house all the above-mentioned components forming the cylinder head assembly.
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