| 摘要 |
<p>A Multi-cylinder barrel engine having a centre line (C/L), and a centre point O, comprising: -a casing (12) on which a plurality (N) of cylinders (11) are parallely disposed in a circular row around C/L; - a corresponding number (N) of pistons (13), each mounted inside each of said cylinders; - a crankshaft (16) comprising two co-axial end sections (17,18) and an intermediate section (19) whose axis (w-w) intersects the common axis (C/L) of the end sections at the centre point O with a tilt angle alpha, whereby said crankshaft is rotatably mounted on the casing through a first couple of bearings (20,20') operating between the casing and the two end sections, the latter being solidly connected to the extremities of the intermediate section by at least one connecting crank (21); - a wobbling body (15), substantially axial-symmetric, rotatably mounted, through a second couple of bearings (22,22'), on the crankshaft's intermediate section (19) so that its axis (w-w) coincides with the central axis of said body, said pistons being connected and carried at the peripheral edge (14) of said wobbling body, whereby said pistons and wobbling body connected together form a single piece called Wobbling Unit (WU); - a first couple of flat bevel gears (26,27) having identical primitive cones with a vertex angle µ = pi - alpha/2, said gears being fixedly mounted the one (26) on the casing (12) and the other (27) on the WU, in opposed position and such that the vertexes of their primitive cones coincide with the centre point O of the engine, whereby the axis of the one gear (26) coincides with the C/L, and the axis of the other gear (27) coincides with the common axis (w-w) of the WU and intermediate section (19), said first couple of gear providing, by their meshing, a constraint against the rotation of the WU around the C/L.</p> |
