A TURBINE ARRANGEMENT COMPRISING A VOLUTE WITH CONTINUOUSLY DECREASING FLOW AREA HAVING A SUCCESIVELY REDUCED VALUE
    1.
    发明申请
    A TURBINE ARRANGEMENT COMPRISING A VOLUTE WITH CONTINUOUSLY DECREASING FLOW AREA HAVING A SUCCESIVELY REDUCED VALUE 审中-公开
    包括具有连续降低的流动区域的涡轮的布置,其具有适当的降低的值

    公开(公告)号:WO2017176186A1

    公开(公告)日:2017-10-12

    申请号:PCT/SE2017/050243

    申请日:2017-03-14

    Applicant: SCANIA CV AB

    Abstract: The present invention relates to a turbine arrangement driven by exhaust gases from a combustion engine (2). The turbine arrangement comprises a turbine housing (7), a turbine wheel (6) rotatably arranged in the turbine housing (7), a first volute section (15a) defining a curved flow passage (16) extending about 360° around the periphery of the turbine wheel (6), and an inner radial passage (20) directing exhaust gases radially inwardly from the flow passage (16) into a swept area (21) of the turbine wheel (6). The curved flow passage (16) has a cross section area (A) decreasing continuously in the flow direction of the exhaust gases from an initial area (A o ) at an initial angular position (α1) of the curved flow passage (16) to an end angular position (as). The flow area (A) decreases continuously with a successively reduced value from the initial angular position (α1) to an angular position (α) located at least 270° from the initial angular position.

    Abstract translation: 本发明涉及由来自内燃机(2)的废气驱动的涡轮机装置。 涡轮机装置包括涡轮机壳体(7),可旋转地布置在涡轮机壳体(7)中的涡轮机叶轮(6),限定大约360°延伸的弯曲流动通道(16)的第一蜗形部分(15a) 围绕涡轮机叶轮(6)的外周,以及内部径向通道(20),其将来自流道(16)的径向向内的排气引导到涡轮机叶轮(6)的扫掠区域(21)中。 弯曲的流动通道(16)具有在初始角度位置(α1)处从初始区域(A0)在废气的流动方向上连续减小的横截面积(A) 弯曲的流动通道(16)延伸到末端角位置(as)。 流动面积(A)随着从初始角度位置(α1)到位于至少270°的角度位置(α)的连续减小的值连续减小。 从最初的角度位置。

    FOUR STROKE INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    FOUR STROKE INTERNAL COMBUSTION ENGINE 审中-公开
    四冲程内燃机

    公开(公告)号:WO2017078589A1

    公开(公告)日:2017-05-11

    申请号:PCT/SE2016/050944

    申请日:2016-10-05

    Applicant: SCANIA CV AB

    CPC classification number: F02B37/02 F02B27/04 Y02T10/144 Y02T10/146

    Abstract: Herein a four stroke internal combustion engine (2) is disclosed. The internal combustion engine (2) comprises at least one cylinder arrangement (4), an exhaust conduit (6), and at least one turbine. The cylinder arrangement (4) comprises an exhaust port arrangement (14), configured to open and close an exhaust flow area, A CYL . The cylinder arrangement (4) has a maximum volume, V MAX . The exhaust conduit (6) extends between the exhaust flow area, A CYL , and a turbine wheel inlet area, A™, of the turbine and has an exhaust conduit volume, V EXH . The exhaust conduit volume, V EXH , is≤ 0.5 times the maximum volume, V MAX . The exhaust port arrangement (1 4) is configured to expose the exhaust flow area, ACYL, at a size of at least 0.22 times the maximum volume, V MAX , when a piston (10) of the cylinder arrangement (4) is at the bottom dead centre, BDC.

    Abstract translation: 这里公开了一种四冲程内燃机(2)。 内燃机(2)包括至少一个汽缸装置(4),排气管道(6)和至少一个涡轮机。 气缸装置(4)包括排气口装置(14),该排气口装置被构造成打开和关闭排气流动区域CYL。 气缸装置(4)具有最大体积V MAX。 排气管道(6)在涡轮机的排气流动区域A CYL和涡轮机叶轮入口区域A T之间延伸并且具有排气管道体积V EXH, 子>。 排气管体积VEXX≤最大体积V MAX的0.5倍。 排气口装置(14)构造成当气缸的活塞(10)处于最大体积V MAX的至少0.22倍的尺寸时暴露排气流动区域ACYL, 安排(4)在下死点,BDC。

Patent Agency Ranking