公开(公告)号：EP3055529A1

公开(公告)日：2016-08-17

申请号：EP14852973.8

申请日：2014-10-07

申请人： Borgwarner Inc.

发明人： LOTZ, Robert ,  HANDLON, Brian ,  CHEKANSKY, Jason

IPC分类号： F02B37/22 ,  F02B39/00 ,  F01D17/10

CPC分类号： F02B37/183 ,  F02B37/02 ,  F02B39/00 ,  F02C6/12 ,  F16K1/20 ,  F16K1/42 ,  F16K1/54 ,  F16K27/0227 ,  Y02T10/144

摘要： A wastegate assembly (12) having a valve (16) to control exhaust gas flow bypassing a turbine wheel of a turbocharger. The wastegate assembly (12) has a wastegate port (14) for flow bypassing the turbine wheel. The valve (16) has an arm (20) controlling a valve head (22) relative to the port (14) for selectively blocking and unblocking the port (14) to control flow. A valve seat (26) may surround the port (14) to be operable with the valve head (22) to selectively block the port (14). A contoured side wall (30) is disposed adjacent to the port (14) and extends from the turbine housing (10) so as to be radially offset from a valve margin (25). The contoured side wall (30) may have a concave portion (40) adjacent to the valve head (22) to help effectuate desired flow at specific valve opening angles.

摘要翻译： 具有阀（16）的废气门组件（12），用于控制旁路涡轮增压器的涡轮机叶轮的废气流。 废气门组件（12）具有用于流过涡轮机叶轮的废气门口（14）。 阀（16）具有相对于端口（14）控制阀头（22）的臂（20），用于选择性地阻塞和解除堵塞端口（14）以控制流动。 阀座（26）可围绕端口（14）以与阀头（22）一起操作以选择性地阻塞端口（14）。 轮廓侧壁（30）邻近端口（14）设置并且从涡轮机壳体（10）延伸以便从阀门边缘（25）径向偏移。 轮廓侧壁（30）可以具有与阀头（22）相邻的凹部（40），以有助于以特定的阀打开角度实现期望的流动。

公开(公告)号：EP3055529B1

公开(公告)日：2018-08-29

申请号：EP14852973.8

申请日：2014-10-07

申请人： Borgwarner Inc.

发明人： LOTZ, Robert ,  HANDLON, Brian ,  CHEKANSKY, Jason

IPC分类号： F02B37/22 ,  F02B39/00 ,  F01D17/10 ,  F16K1/12 ,  F16K1/20 ,  F16K1/42 ,  F16K1/54 ,  F02B37/18 ,  F02B37/02 ,  F02C6/12

CPC分类号： F02B37/183 ,  F02B37/02 ,  F02B39/00 ,  F02C6/12 ,  F16K1/20 ,  F16K1/42 ,  F16K1/54 ,  F16K27/0227 ,  Y02T10/144

摘要： An exhaust gas turbocharger with a wastegate port configured to permit some exhaust gas flow to exit a turbine volute upstream of the turbine wheel and enter a bypass channel thereby bypassing the turbine wheel, a valve with a valve head dimensioned to seat on a valve seat and to move between a seated position and an open position, the bypass channel having a sidewall contoured to surround the valve head as the valve head moves between the seated position and the open position, he bypass channel sidewall shaped so that a throat area (At) area between the bypass channel sidewall and valve head gradually increases as the valve head moves between the seated and the open position, such the bypass flow is controlled by the throat area (At) and not the area between the valve head and the valve seat.