公开(公告)号：WO1991012427A1

公开(公告)日：1991-08-22

申请号：PCT/DE1991000048

申请日：1991-01-21

Applicant: ROBERT BOSCH GMBH ,  HANS, Waldemar ,  KIRSCHE, Ingo

Inventor： ROBERT BOSCH GMBH

IPC: F02M69/08

CPC classification number: F02M51/0678 ,  F02M51/0653 ,  F02M61/1853 ,  F02M69/047 ,  F02M2051/08

Abstract: Known fuel-air mix injection devices can only be adapted to individually required air mass flows within limits and at high cost. Other devices with standard injection valves occupy a large space and have a complex structure. A new device has the advantage of being a prefabricated part capable of being used with various fuel injection valves without further adjustments. The air containing sleeve (4) has stop faces (26) that rest on the injection end (6, 20) of the fuel injection valve (1) and form with the latter a narrow air gap (27), so that the air is accelerated almost to sonic speed and finely atomizes the fuel injected through the fuel injection openings (8). This fuel-air mix injection device is particularly useful for injecting the mix in the inlet manifold of a spark ignition internal combustion engine.

Abstract translation: 已知的燃料 - 空气混合注射装置只能在极限内和高成本下适应单独要求的空气质量流量。 具有标准喷射阀的其他设备占用空间大，结构复杂。 新的装置具有作为预制部件的优点，能够在不进一步调节的情况下与各种燃料喷射阀一起使用。 空气容纳套筒（4）具有停留在燃料喷射阀（1）的喷射端（6,20）上的停止面（26），并形成有较窄气隙（27）的空气， 几乎加速到声速，并且通过燃料喷射孔（8）喷射的燃料被微细化。 这种燃料 - 空气混合喷射装置对于将混合物喷射在火花点火内燃机的入口歧管中是特别有用的。