Two-piece stand-pipe

An automobile transmission hydraulic oil fill system includes a transmission oil pan and a two-piece standpipe system. The two-piece stand-pipe system includes a clinch nut connected to the oil pan and having a threaded bore opening through the oil pan. A stand-pipe is fixed to the clinch nut. The stand-pipe includes a longitudinal bore in fluid communication with the threaded bore. An end cap defining a free end of the stand-pipe prevents entrance of hydraulic oil into the longitudinal bore of the stand-pipe during hydraulic oil fill of the transmission. Multiple ports created in a side wallof the stand-pipe permit hydraulic oil to enter the longitudinal bore and flow out of the threaded bore of the clinch nut. Each of the ports includes an edge. The edges of the ports define a hydraulicoil fill level of the transmission. 种汽车变速器液压油填充系统包括变速器油底壳和两件式立管系统。两件式立管系统包括连接到油底壳并具有穿过油底壳的螺纹孔的锁紧螺母。立管固定到锁紧螺母。立管包括与螺纹孔流体连通的纵向孔。限定立管的自由端的端盖防止液压油在变速器的液压油填充期间进入立管的纵向孔。在立管的侧壁中形成的多个端口允许液压油进入纵向孔并从锁紧螺母的螺纹孔中流出。每个端口包括边缘。端口的边缘限定变速器的液压油填