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    METHOD FOR CLEANING AN EXHAUST VALVE OF A TWO-STROKE INTERNAL COMBUSTION ENGINE
    3.
    发明公开
    METHOD FOR CLEANING AN EXHAUST VALVE OF A TWO-STROKE INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：EP3486449A1

    公开(公告)日：2019-05-22

    申请号：EP18214143.2

    申请日：2017-01-30

    申请人： BRP-Rotax GmbH & Co. KG

    发明人： MATHEIS, Andreas ,  DOPPELBAUER, Markus ,  SCHALLAUER, Martin ,  BERGER, Christian ,  ROLAND, Gunther

    IPC分类号： F02B25/20 ,  F02B33/04 ,  F01L1/38 ,  F01L3/20 ,  F01L5/20 ,  F02D13/02

    摘要： A method for cleaning an exhaust valve (100) of a two-stroke internal combustion engine (10) comprising: requesting (206) an exhaust valve cleaning cycle if at least one of a first condition and a second condition is satisfied; initiating (212) the exhaust valve cleaning cycle if at least one of a third condition and a fourth condition is satisfied; and aborting (218) the exhaust valve cleaning cycle if at least one of the at least one of the third and fourth conditions is no longer satisfied; the first condition (202) being a time elapsed since a previous cleaning cycle has been completed being greated than a predetermined time; the second condition (204) being a rate of opening of the exhaust valve being less than predetermined rate; the third condition (208,214) being a throttle valve being closed; and the fourth condition (210,216) being an engine speed being less than a predetermined engine speed.

    HYBRID VEHICLE DRIVETRAIN
    4.
    发明授权
    HYBRID VEHICLE DRIVETRAIN 有权

    公开(公告)号：EP2760692B1

    公开(公告)日：2018-12-05

    申请号：EP12836328.0

    申请日：2012-09-28

    申请人： BRP-Rotax GmbH & Co. KG

    发明人： BARTH, Andreas

    IPC分类号： B60K6/48

    CPC分类号： B60K6/547 ,  B60K6/48 ,  B60K2006/4808 ,  B60Y2200/122 ,  B60Y2200/92 ,  F16H61/0213 ,  F16H63/18 ,  Y02T10/6221 ,  Y02T10/626 ,  Y10S903/917 ,  Y10T74/19014

    摘要： A drivetrain for a hybrid vehicle has at least one ground engaging element, a torque transmission shaft operatively connected thereto, an electric motor, a transmission having an input shaft and an output shaft, and an internal combustion engine operatively connected to the input shaft of the transmission. The electric motor and the output shaft are operatively connected to the torque transmission shaft. The transmission has a neutral shift position, a first shift position, and at least one higher shift position including a highest shift position. The transmission is capable of shifting directly from the neutral shift position to the first shift position and directly from the neutral shift position to the highest shift position. A vehicle having the drivetrain is also disclosed. A method of starting an internal combustion engine in a hybrid vehicle is also disclosed.

    FRACTURE-SEPARATED ENGINE COMPONENT AND METHOD FOR MANUFACTURING SAME
    5.
    发明授权
    FRACTURE-SEPARATED ENGINE COMPONENT AND METHOD FOR MANUFACTURING SAME 有权

    公开(公告)号：EP3173637B1

    公开(公告)日：2018-11-14

    申请号：EP16200398.2

    申请日：2016-11-24

    申请人： BRP-Rotax GmbH & Co. KG

    发明人： FUCHS, Thomas ,  WIESER-CHRISTIAN, Uwe ,  NEMESCH, Jürgen

    IPC分类号： F16C9/04

    CPC分类号： F16C9/045 ,  C23C8/26 ,  C23C8/80 ,  F02F1/24 ,  F16C3/06 ,  F16C3/12 ,  F16C7/00 ,  F16C7/023 ,  F16C2223/14 ,  F16C2360/22

    摘要： A fracture-separated engine component and a method for manufacturing same is described. Prior to fracture separation, the engine component is case-hardened by nitriding and has a nitriding hardness depth of 0.4 to 0.7 mm. After the nitriding, the engine component is cooled such that each one of the subsequent fracture surfaces (6) reaches a temperature below -100°C. The fracture separation is then performed. After fracture separation, the engine component has two fracture surfaces along a fracture plane, the fracture surfaces having hardened peripheral areas and unhardened core sections. No point of the unhardened core sections located in the fracture plane is located at a distance of more than 1.1 mm from the nearest hardened peripheral area. Each one of the fracture surfaces has a cross sectional face comprising elongated partial fracture surfaces with a width of less than 3.2 mm.

    METHOD AND SYSTEM FOR MANUFACTURING A FAMILY OF INTAKE MANIFOLDS FOR A FAMILY OF INTERNAL COMBUSTION ENGINES
    6.
    发明公开
    METHOD AND SYSTEM FOR MANUFACTURING A FAMILY OF INTAKE MANIFOLDS FOR A FAMILY OF INTERNAL COMBUSTION ENGINES 审中-公开

    公开(公告)号：EP3375590A1

    公开(公告)日：2018-09-19

    申请号：EP17161925.7

    申请日：2017-03-20

    申请人： BRP-Rotax GmbH & Co. KG

    发明人： SCHALLAUER, Martin ,  STIEBINGER, Christian ,  NEUBACHER, Hermann ,  SAUER, Michael

    IPC分类号： B29C45/26 ,  B29C45/00 ,  F02M35/10 ,  F02M35/104

    CPC分类号： F02M35/104 ,  B29C45/006 ,  B29C45/2614 ,  B29C45/2673 ,  B29C65/06 ,  B29L2031/7492 ,  F02M35/10072 ,  F02M35/10216 ,  F02M35/10347 ,  F02M35/1036 ,  F02M35/112

    摘要： A family of manifolds for a family of engines. A first and second engine respectively have a first and second number of cylinders. The second number is at least one and smaller than the first number. Each manifold has a plenum chamber and an inlet. The first and second manifolds respectively have the first and second number of outlets, each connected to one of a first number of runner passages. The first manifold is manufactured by inserting an outlet insert for forming at least one of the first number of outlets into a first or second mold, forming a first portion thereof using the first mold, forming a second portion thereof using the second mold, and connecting the portions. The second manifold is manufactured by forming a first portion thereof using the first mold, forming a second portion thereof using the second mold, and connecting the portions. The second intake manifold being configured for the second engine and comprising a second number of outlets being fluidly connected to a corresponding one of the first number of intake runner passages and being configured for fluid connection to a corresponding one of the second number of cylinders, at least one of the first number of intake runner passages of the second intake manifold not being fluidly connected to any one of the second number of outlets of the second intake manifold.

    FRACTURE-SEPARATED ENGINE COMPONENT AND METHOD FOR MANUFACTURING SAME
    8.
    发明公开
    FRACTURE-SEPARATED ENGINE COMPONENT AND METHOD FOR MANUFACTURING SAME 审中-公开
    断裂分离式发动机部件及其制造方法

    公开(公告)号：EP3173637A1

    公开(公告)日：2017-05-31

    申请号：EP16200398.2

    申请日：2016-11-24

    申请人： BRP-Rotax GmbH & Co. KG

    发明人： FUCHS, Thomas ,  WIESER-CHRISTIAN, Uwe ,  NEMESCH, Jürgen

    IPC分类号： F16C9/04

    CPC分类号： F16C9/045 ,  C23C8/26 ,  C23C8/80 ,  F02F1/24 ,  F16C3/06 ,  F16C3/12 ,  F16C7/00 ,  F16C7/023 ,  F16C2223/14 ,  F16C2360/22

    摘要： A fracture-separated engine component and a method for manufacturing same is described. Prior to fracture separation, the engine component is case-hardened by nitriding and has a nitriding hardness depth of 0.4 to 0.7 mm. After the nitriding, the engine component is cooled such that each one of the subsequent fracture surfaces (6) reaches a temperature below -100°C. The fracture separation is then performed. After fracture separation, the engine component has two fracture surfaces along a fracture plane, the fracture surfaces having hardened peripheral areas and unhardened core sections. No point of the unhardened core sections located in the fracture plane is located at a distance of more than 1.1 mm from the nearest hardened peripheral area. Each one of the fracture surfaces has a cross sectional face comprising elongated partial fracture surfaces with a width of less than 3.2 mm.

    摘要翻译： 描述了一种断裂分离的发动机部件及其制造方法。 在断裂分离之前，发动机部件通过渗氮​​进行表面硬化并具有0.4至0.7mm的氮化硬度深度。 在氮化之后，发动机部件被冷却，使得后续断裂表面（6）中的每一个都达到低于-100℃的温度。 然后执行断裂分离。 断裂分离后，发动机部件沿断裂面具有两个断裂表面，断裂表面具有硬化的周边区域和未硬化的芯部分。 位于断裂平面内的未硬化的核心部分的点没有位于离最近的硬化周边区域大于1.1mm的距离处。 每个断裂表面具有横截面，该横截面包括宽度小于3.2mm的细长的局部断裂表面。