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    • 3. 发明公开
    • Method for determining an angle of crank arrangement in a multi-cylinder internal combustion engine and a multi-cylinder internal combustion engine using this method
    • 一种用于确定多气缸内燃机和相关联的多气缸内燃机的曲柄组件的角度方法
    • EP1333192A2
    • 2003-08-06
    • EP03001386.6
    • 2003-01-27
    • Mitsubishi Heavy Industries, Ltd.
    • Ito, Kuninori, Yokohama R&D CenterSato, Nobuaki, Yokohama R&D Center
    • F16F15/24
    • F02B75/20F02B75/22F02B2075/025F02B2075/027F02B2075/1828F02B2075/1836F02B2075/1856F16F15/24
    • In a multi-cylinder reciprocating internal combustion engine, an optimal angle of crank arrangement that reduces vibrating force caused in the engine is obtained.
      Where F m is the sum of an unbalanced force of order m that acts as vibrating force in the multi-cylinder reciprocating internal combustion engine (having the number of crank throws of n) and is represented by; F (m) =F m [1 1 ··· 1][exp(im•α 1 )exp(im•α 2 ) ··· exp(im•α n )] t =F m •g m and
      |g m | is an absolute value of a non-dimensional coefficient of F (m) and is represented by; |g m |=abs{[1 1··· 1] [exp(im• α 1 ) exp(im• α 2 ) ··· exp(im• α n )] t }; a restrictive condition is set in which |g m | is endlessly approached to zero, and where M (k) is an unbalanced couple that is expressed by the unbalanced force of order k of each crank throw, weighted by distance L between each cylinder, and is represented by; M (k) =F k L[s 1 s 2 ··· s n ][exp(ik• α 1 ) exp(ik• α 2 ) ··· exp(ik• α n )] t = F k L• f k and
      |f k | is an absolute value of a non-dimensional coefficient of the unbalanced couple, that is obtained by M (k) being divided by F k L, and is represented by; |f k |=abs {[s 1 s 2 ··· s n ][exp(ik• α 1 ) exp(ik• α 2 ) ··· exp(ik• α n )] t } ; an angle of the crank throw arrangement α j (j= 1, 2, ··· , n.) is obtained to be determined by an expression on an orthogonal coordinate system, the angle of the crank throw arrangement α j minimizing, under the restrictive condition, the n-th power of |f k |, n being an even number.
    • 在多气缸往复活塞式内燃机到曲柄装置的最佳角度并减少了在发动机引起的振动力被获得。 其中FM是m阶的不平衡力的总和没有充当多缸在振动力往复式内燃机(具有曲柄的掷数的n)和由下式表示; F(M)= 1 ... FMA11ÜÄexpEXP(在•阿尔法1)... EXP(在•阿尔法2)(•阿尔法N)Ü = FM•克和 ¾gm¾为F(m)和由下式表示的无量纲系数的绝对值; ¾gm¾=absäÄ11 ... 1U AEXP(在•阿尔法1)EXP(在•阿尔法2)... EXP(在阿尔法•S)Ü U; 的限制条件是在其中¾gm¾设定的无休止走近到零,并且其中,M(k)是一个不平衡的夫妇并由各曲拐的k阶不平衡力过表达时,由每个气缸之间距离L加权 和由下式表示; M(k)的=FkLÄs1S2 ...snÜÄexp(IK•阿尔法1)EXP(IK•阿尔法2)... EXP(IK•阿尔法N)Ü = FKL•FK 和 ¾fk¾是不平衡夫妇无量纲系数的绝对值,并通过M(k)的由FKL被划分获得的,并且由下式表示; ¾fk¾= ABS AAS1 S2 ...snÜÄexp(IK•阿尔法1)EXP(IK•阿尔法2)... EXP(IK•阿尔法N)Ü U; 的曲柄行程安排阿尔法Ĵ(J = 1,2,...,N。)的角度获得要确定性由正交之一的表达开采坐标系中,曲柄行程安排的αj的角度 最小化,限制条件,¾fk¾的n次幂下,n是偶数。
    • 4. 发明授权
    • MULTICYLINDER BARREL-TYPE ENGINE
    • 桶发动机
    • EP1658417B1
    • 2009-11-11
    • EP04766214.3
    • 2004-07-14
    • Voglaire, Helene
    • MARTINOZZI, Giulio
    • F01B3/02F01B3/00F01B3/10F02B75/02
    • F01B3/02F01B3/0002F01B3/101F02B75/021F02B2075/027F02B2075/1828
    • 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 α, 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 = π - α/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.
    • 7. 发明公开
    • MULTICYLINDER BARREL-TYPE ENGINE
    • 桶发动机
    • EP1658417A1
    • 2006-05-24
    • EP04766214.3
    • 2004-07-14
    • Voglaire, Helene
    • MARTINOZZI, Giulio
    • F01B3/02F01B3/00F01B3/10
    • F01B3/02F01B3/0002F01B3/101F02B75/021F02B2075/027F02B2075/1828
    • 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 α, 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 = π - α/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.