| 摘要 |
A compact cylinder head arrangement (11) for internal combustion engines, in particular with two cylinders, comprising at least one pair of cylinders provided with a valve aperture (53) and relative valve (56), there being associated with each cylinder a chamber (14, 15) which at one end is connected to the valve (56) and at the other end is connected to means for feeding a fuel mixture, within each chamber (14, 15) there being provided a piston (17, 18) for injecting a mixture generated within the chamber (14, 15) into the respective cylinder, the pistons (17, 18) being moved by a connecting rod (23) driven by a positive transmission (44, 47) operated by a drive shaft, each piston connecting rod (23) being rotatably pivoted on a shaft element (24, 25, 26) rotating within a bush (31) retained in the cylinder head (11) and rigidly connected to the positive transmission, the shaft element and the bush being provided with fuel mixture feed ducts (33, 34, 35) which are alternately alignable during the rotation of the shaft element (24, 25, 26).
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