公开(公告)号：WO2016016836A2

公开(公告)日：2016-02-04

申请号：PCT/IB2015/055766

申请日：2015-07-30

Applicant: PIAGGIO & C. S.P.A.

Inventor： DOVERI, Stefano

IPC: F16H7/18

CPC classification number: F16H7/08 ,  F16H7/18 ,  F16H2007/0804 ,  F16H2007/0872 ,  F16H2007/0893

Abstract: A chain-tensioning rod (1), of the type used in an internal combustion engine with an overhead camshaft valvetrain to keep in tension a timing chain, comprising a shoe (4), which is pressed against the timing chain, and a supporting arm (25) of the shoe, allows a simple assembly of the arm and of the relative shoe because: the shoe (4) is formed by a monolithic piece having, on one side thereof, a sliding surface (5) and on, the opposite side, a supporting surface (6) and a contact element (7) connected to the supporting surface (6) by means of a longitudinal central rib (10); and the supporting arm (25) is formed by an elongated sheet having a longitudinal pass-through slit (27) extending from a distal end thereof, wherein it is open, so that the insertion of the supporting arm (25) on the supporting surface (6) takes place by making said rib (10) to slide in said slit (27), the rib (10) operating as transversal locking device of the supporting arm (25) on the supporting surface (6).

Abstract translation: 一种链式张紧杆（1），其用于具有顶置凸轮轴阀门的内燃机中，以保持正时链条的张紧力，该链条张紧杆（1）包括压靠正时链条的鞋（4）和支撑臂 （25），允许臂和相对鞋的简单组装，因为：鞋（4）由整体件形成，该整体件在其一侧上具有滑动表面（5）并且在其上相对 支撑表面（6）和通过纵向中心肋（10）连接到支撑表面（6）的接触元件（7）; 并且支撑臂（25）由具有从其远端延伸的纵向通过狭缝（27）的细长片形成，其中它是敞开的，使得支撑臂（25）插入支撑表面 通过使所述肋（10）在所述狭缝（27）中滑动，所述肋（10）作为所述支撑臂（25）的横向锁定装置作用在所述支撑面（6）上而进行。

公开(公告)号：WO2016166688A1

公开(公告)日：2016-10-20

申请号：PCT/IB2016/052118

申请日：2016-04-14

Applicant: PIAGGIO & C. S.P.A.

Inventor： DOVERI, Stefano

IPC: F02M35/10 ,  F02M35/16 ,  B01D46/00 ,  F02M35/024

CPC classification number: F02M35/162 ,  B01D46/0026 ,  B01D46/0041 ,  B01D46/10 ,  B01D2279/60 ,  F02M35/024 ,  F02M35/10013 ,  F02M35/10262 ,  F02M35/104 ,  Y02T10/146

Abstract: An air intake structure (1), feeding air to an engine, in particular of motorcycle type, of a vehicle, comprises: a container divided by a main baffle (20) into two distinct chambers: a first chamber (10) communicating with outside and a second chamber (11) communicating with a throttled body by means of a feeding duct (5); the two chambers (10, 11) being separated by a filter (9), positioned at said main baffle, providing for the air cleaning, the first and the second chamber (10, 11) extending longitudinally side-by-side one with respect to the other one so as to define opposite sides of the air intake structure (1); wherein the air intake structure (1) further comprises a pre-chamber (6) accessing said first chamber (10), separated therefrom by a cross wall (21) and communicating therewith by means of an access duct (12) crossing said wall (21), with an inlet end thereof (7) arranged in said pre-chamber (6) and an outlet end thereof (22) arranged in said first chamber (10), said pre-chamber (6) being arranged on the front side with respect to a forward direction of the vehicle; wherein the pre-chamber (6) comprises a front access mouth (23), opened outside; and wherein the pre-chamber (6) includes a diverting baffle (43) interposed between said access mouth and the inlet end (7) of said access duct (12), transversal to the air path, extending from a peripheral wall of said pre-chamber (6) as far as a terminal end thereof (24) which forms, with the peripheral walls of said pre-chamber (6), a staggered passage opening (44) with respect to said access mouth (6).

Abstract translation: 一种进气结构（1），其特征在于，向车辆的发动机（特别是摩托车型）供给空气，其特征在于，包括：由主挡板（20）分成两个不同的室的容器：与外部连通的第一室（10） 以及通过进料管道（5）与节流体连通的第二室（11）。 两个腔室（10,11）由位于所述主挡板上的过滤器（9）分开，提供空气清洁，第一和第二腔室（10,11）纵向并排地延伸，与 到另一个以限定进气结构（1）的相对侧; 其中所述进气结构（1）还包括进入所述第一室（10）的预燃室（6），其通过横壁（21）与其隔开并且通过与所述壁交叉的通道导管（12）与其连通 21），其入口端（7）布置在所述预制室（6）中，其出口端（22）布置在所述第一室（10）中，所述预室（6）布置在前侧 相对于车辆的前进方向; 其中所述预制室（6）包括在外部开口的前通路口（23）; 并且其中所述预制室（6）包括插入在所述通路口和所述进入管道（12）的入口端（7）之间的转向挡板（43），横向于所述空气路径，从所述预热器的周壁延伸 （6），其终端（24）与所述预制室（6）的周壁形成相对于所述进入口（6）的交错通道开口（44）。

公开(公告)号：WO2018115132A1

公开(公告)日：2018-06-28

申请号：PCT/EP2017/083834

申请日：2017-12-20

Applicant: PIAGGIO & C. S.P.A

Inventor： DOVERI, Stefano

IPC: F01P5/06

Abstract: A system for cooling the internal combustion engine of a motorcycle (100) allows to reduce noise independently from the rotation regime of the fan and from the entity of the drawn air flow rate, and it comprises the fan (1) included inside a fan case (5) having a front wall (6) with a wide central opening (7) therethrough the air is drawn, and distribution walls (8, 9), projecting from said front wall and substantially parallel to the drawing direction, including and directing the turbulent air in the compartment which receives the fan itself, wherein said distribution walls (8, 9) determine a side gap (13), the case having at such gap a plurality of pegs (14) with circular sections, arranged along a line surrounding said central opening(7).

公开(公告)号：WO2020016829A1

公开(公告)日：2020-01-23

申请号：PCT/IB2019/056162

申请日：2019-07-18

Applicant: PIAGGIO & C. S.P.A.

Inventor： NESTI, Paolo ,  MAGAGNINI, Carlo ,  DOVERI, Stefano

IPC: F01N13/00 ,  F01N13/18 ,  F01N3/34 ,  F01N3/30 ,  F01N3/10 ,  F01N13/10

Abstract: Motorcycle engine (4) comprising: - a head (8) equipped with at least one exhaust duct (12), - a gas exhaust system (16) comprising a sleeve (20), fluidly associated with said exhaust duct (12), and a muffler (24) fluidly connected to the sleeve (20), wherein - the sleeve (20) is mechanically connected to the head (8), - and the muffler (24) is mechanically connected to the head (8) directly or by means of the sleeve (20), wherein said sleeve (20) houses a pre-catalyst (72) for a pre-treatment of the exhaust gas flow, and wherein the muffler (24) is provided with a catalyst (76).

公开(公告)号：WO2019180583A1

公开(公告)日：2019-09-26

申请号：PCT/IB2019/052176

申请日：2019-03-18

Applicant: PIAGGIO & C. S.P.A.

Inventor： DOVERI, Stefano

IPC: B62M23/02 ,  B60K6/54 ,  F16D43/06 ,  F16D43/14

Abstract: A transmission group (4) for motor vehicles, comprising - a drive wheel axle (8) operatively connected, via a main transmission, to an internal combustion engine for forward travel, - an auxiliary electric motor (12) for reversing, - a control bushing (16) driven in rotation by means of said auxiliary electric motor (12), - a transmission driven bushing (20), operatively connected to the drive wheel axle (8) of the motor vehicle, - in which the control bushing (16) is configured to centrifugally engage the transmission driven bushing (20) when the auxiliary electric motor (12) drives in rotation the control bushing (16).

公开(公告)号：WO2018083640A1

公开(公告)日：2018-05-11

申请号：PCT/IB2017/056864

申请日：2017-11-03

Applicant: PIAGGIO & C. S.P.A

Inventor： DOVERI, Stefano

IPC: B60K11/04 ,  B60K11/08

Abstract: A cooling system of an internal combustion engine of a motorcycle, which has a suction side guard (4), enables a high ratio between the open surface of the guard and its overall surface, ensuring an improved penetration of the air through the radiator and thus avoiding oversizing of the suction fan, wherein: said guard (4), having a lower edge (6), an upper edge (7), a front edge (8) and a rear edge (9) with respect to a running direction (F) of the vehicle, has a grate mesh structure extending on a plane whereby a deviation space (12) of motion of the air sucked by the fan is defined behind the guard (4); said grate mesh structure being surrounded by a rib (13) having, at the front edge (8), a lower height than that at the rear edge (9).

Abstract translation: 具有吸力侧防护装置（4）的摩托车内燃机的冷却系统使得防护装置的敞开表面与其整个表面之间具有高比率，从而确保提高穿透率 （6），上边缘（7），前边缘（8）和后边缘（9），其中，所述防护装置（4）具有下边缘 ）相对于车辆的行驶方向（F）具有格栅网状结构，所述格栅网状结构在平面上延伸，由此在所述防护装置（4）后面限定由所述风扇吸入的空气的运动的偏差空间（12）; 所述格栅网状结构由在前边缘（8）处具有比后边缘（9）处的高度低的高度的肋（13）围绕。

公开(公告)号：WO2016166167A1

公开(公告)日：2016-10-20

申请号：PCT/EP2016/058132

申请日：2016-04-13

Applicant: PIAGGIO & C. S.P.A.

Inventor： DOVERI, Stefano

IPC: B60K11/06 ,  B60K17/00 ,  F16H57/035 ,  F16H57/04

CPC classification number: F16H57/0416 ,  B60K11/06 ,  B60K17/00 ,  F16H57/027 ,  F16H57/031 ,  F16H57/035 ,  F16H57/04 ,  F16H57/0489

Abstract: A cover structure (1) for the transmission of a motorcycle, arranged sideways for the protection of the transmission member transmitting the driving force from the engine to the rear wheel, allows the entrance of clean air, without the need of a protective bodywork element, from an air intake possibly having a wide opening, and comprises: a first cover member (2) apt to protect said transmission members, longitudinally extending along a direction which coincides with the direction of travel (F), from a receding front area (4), corresponding to the engine axis, to a rear area (13) corresponding to the driven axis of the rear wheel, and comprising an inlet hole (6) positioned at an inlet port of the transmission at said receding front area (4); a second cover member (3) overlapping said receding front area (4) to protect said inlet hole (6), forming, with the said first cover member (2), an air intake (19) extending from an upper edge to a lower edge of the first cover member (2) and defining an air inlet section facing said rear area (13), oriented in a direction opposite to the motorcycle direction of travel (F); and a baffle (20), disposed between the first and the second cover members (2, 3) at said air intake (19), in such a way as to form a channel driving the air upwardly to said inlet hole (6).

Abstract translation: 用于传动摩托车的盖结构（1），用于保护传动构件的传动构件侧向传递驱动力从发动机到后轮，允许清洁空气的进入，而不需要保护性车身元件， 并且包括：第一盖构件（2），其适于保护所述传动构件，其沿着与行进方向（F）重合的方向从后退前区域（4）纵向延伸 ）对应于后轮的从动轴线的后区域（13），并且包括位于所述后退前区域（4）处的变速器的入口处的入口孔（6）; 与所述后退前区域（4）重叠的第二盖构件（3），以保护所述入口孔（6），与所述第一盖构件（2）形成从上边缘向下延伸的进气口（19） 第一盖构件（2）的边缘并且限定面向所述后区域（13）的空气入口部分，其沿与摩托车行进方向（F）相反的方向定向; 以及在所述进气口（19）处设置在所述第一和第二盖构件（2,3）之间的挡板（20），以形成将空气向上驱动到所述入口孔（6）的通道。

公开(公告)号：WO2016016813A1

公开(公告)日：2016-02-04

申请号：PCT/IB2015/055715

申请日：2015-07-29

Applicant: PIAGGIO & C. S.P.A.

Inventor： DOVERI, Stefano

IPC: F01P7/16 ,  F01P5/10

CPC classification number: F01P7/165 ,  F01P5/04 ,  F01P5/10 ,  F01P5/12 ,  F01P9/04 ,  F01P11/04 ,  F01P2050/16 ,  F01P2070/52 ,  F02B61/02 ,  F02B75/16 ,  F02N11/04

Abstract: In a water-cooled inner combustion engine (1), in particular for equipping scooters and motorcycles, the arrangement of the outer cooling tubes connected to a radiator is simplified by arranging a by-pass valve (27), arranged directly on the engine block (2) at a discharge opening (18) obtained therein, which, when the cooling water is lower than a reference temperature, prevents the water circulation in the radiator (18) and it addresses it through a by-pass line (26) by implementing a cooling circuit wholly included in the engine block (2).

Abstract translation: 在水冷式内燃机（1）中，特别是用于装备踏板车和摩托车的情况下，通过布置直接布置在发动机缸体上的旁通阀（27）来简化与散热器连接的外冷却管的布置 （2）在其中获得的排出口（18）处，当冷却水低于参考温度时，防止散热器（18）中的水循环，并且通过旁通管线（26）将其处理，由 实现完全包括在发动机缸体（2）中的冷却回路。