发明名称 Injection nozzle
摘要 An injection nozzle for the direct injection of a liquid fuel into a cylinder chamber of a piston engine includes multiple spray holes for generating injection jets. The multiple spray holes are distributed on a nozzle body of the injection nozzle in the peripheral direction. At least one pair of spray holes adjoining in the peripheral direction is provided, the longitudinal center axes of which enclose a pair angle in the peripheral direction that is smaller than an adjacent angle which is enclosed between the longitudinal center axis of the respective spray hole of the spray hole pair in the peripheral direction and a longitudinal center axis of a spray hole adjoining the spray hole pair in the peripheral direction.
申请公布号 US9404460(B2) 申请公布日期 2016.08.02
申请号 US201214357398 申请日期 2012.11.09
申请人 Daimler AG 发明人 Boecking Tobias;Echtle Harald;Hergemoeller Thorsten;Herrmann Lothar;Roessler Klaus
分类号 F02B3/00;F02M61/18;F02B23/10;F02B1/12;F02B3/06;F02B75/12 主分类号 F02B3/00
代理机构 Crowell & Moring LLP 代理人 Crowell & Moring LLP
主权项 1. An injection nozzle configured for direct injection of a liquid fuel into a cylinder chamber of a spark-ignited piston engine, the injection nozzle comprising: a nozzle body; and multiple spray holes, each configured for generating injection jets, wherein the multiple spray holes are arranged in a star-shaped pattern and are distributed on the nozzle body in a peripheral direction, wherein at least one pair of spray holes of the multiple spray holes, which are adjoining in the peripheral direction, have longitudinal center axes enclosing a pair angle in the peripheral direction, wherein the pair angle is smaller than an adjacent angle enclosed between the longitudinal center axis of one of the spray holes of the at least spray hole pair in the peripheral direction and a longitudinal center axis of a spray hole of an adjoining the spray hole pair in the peripheral direction, wherein the multiple spray holes include exactly six spray holes, wherein the multiple spray holes include exactly two spray hole pairs that are diametrically opposed; wherein a further spray hole is situated, in the peripheral direction, between each of the at least one pair of spray holes, wherein the injection nozzle is situated in an area of a longitudinal center axis of a cylinder of the cylinder chamber, wherein an ignition device of the cylinder is situated at a distance from the injection nozzle, wherein the injection nozzle is oriented with respect to the multiple spray holes in such a way that the ignition device is situated, in the peripheral direction, between the two injection jets of the at least one pair of spray holes, and wherein the ignition device is situated, in the peripheral direction, between two exhaust valves of the cylinder.
地址 Stuttgart DE