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    • 31. 发明申请
    • ARRANGEMENT FOR EXHAUST BRAKING OF A COMBUSTION ENGINE
    • 燃烧发动机排气制动装置
    • US20110000461A1
    • 2011-01-06
    • US12865146
    • 2009-01-26
    • Håkan FranssonRoger Olsson
    • Håkan FranssonRoger Olsson
    • F02D9/06
    • F02B37/183F01D17/165F02B37/22F02D9/06Y02T10/144
    • The present invention relates to an arrangement for exhaust braking of a combustion engine (2) which is equipped with a turbo unit with at least one flow element (17, 27) settable in varying positions to control the flow of exhaust gases through the turbine (6). The arrangement comprises a bypass line (25) provided with an inlet aperture (25a) connected to an exhaust passage (4a, 19. 20) at a location upstream of the flow element (17, 27), an outlet aperture (25b) connected to the exhaust passage (21, 4b) at a location downstream of the flow element (17, 27) and a throttle means (26). A control device (13, 18) is adapted to placing the flow element (17, 27) in a substantially closed position when an exhaust braking process is to be effected, so that a positive pressure occurs in the exhaust passage (4a, 19) at a location upstream of the flow element (17, 27), which positive pressure is defined by said throttle means (26).
    • 本发明涉及一种用于内燃机(2)的排气制动装置,其配备有具有至少一个流量元件(17,27)的涡轮机单元,所述流量元件可设置在不同位置以控制通过涡轮机的废气流( 6)。 该装置包括旁通管线(25),该旁路管线(25)设置有在流动元件(17,27)的上游位置处连接到排气通道(4a,19.20)的入口孔(25a),连接到出口孔 在所述流动元件(17,27)的下游位置处的排气通道(21,4b)和节流装置(26)。 控制装置(13,18)适于在要进行排气制动过程时将流动元件(17,27)放置在基本上关闭的位置,从而在排气通道(4a,19)中产生正压力, 在所述流动元件(17,27)的上游位置处,所述正压力由所述节流装置(26)限定。