公开(公告)号：EP0572134A1

公开(公告)日：1993-12-01

申请号：EP93303598.2

申请日：1993-05-10

申请人： LUCAS INDUSTRIES PUBLIC LIMITED COMPANY

发明人： Stevens, John William ,  Hardy, Martin Paul ,  Wallace, Douglas

IPC分类号： F02M45/08 ,  F02M61/20

CPC分类号： F02M45/083

摘要： A two stage lift injection nozzle includes a nozzle holder (10) to which is secured a nozzle body (15) which accommodates a fuel pressure actuated valve member (18). The valve member is biased into engagement with a seating (23) by a first spring (27) and after a predetermined movement of the valve member away from the seating it engages a spring abutment (34) of a second spring (32). The movement of the valve member away from the seating against the action of both springs is limited by the engagement of the abutment (34) with stop surfaces (39) defined by recesses (36) in the wall of a chamber (12) in the holder and in which the springs are located.

摘要翻译： 两级升降喷射喷嘴包括一个喷嘴支架（10），固定在其上的一个容纳燃料压力致动阀件（18）的喷嘴体（15）。 阀构件通过第一弹簧（27）被偏置成与座（23）接合，并且在阀构件远离座的预定运动之后，它接合第二弹簧（32）的弹簧座（34）。 阀构件远离座椅的运动抵抗两个弹簧的作用受到限制，即邻接件（34）与在腔室（12）的壁中由凹槽（36）限定的止挡表面（39）的接合限制在 并且弹簧位于其中。