Two-piece stand-pipe

A two-piece standpipe system, comprising:

• a clinch nut having a sleeve connected to the clinch nut and a threaded bore extending through the clinch nut and the sleeve;
• and
• a stand-pipe having an outer face of the stand-pipe directly connected to an inner wall of the sleeve of the clinch nut, the stand-pipe including:
• a longitudinal bore in fluid communication with the threaded bore;
• an end cap defining a free end of the stand-pipe preventing entrance of a fluid into the longitudinal bore of the stand-pipe;
• and
• at least two ports created in a side wall of the stand-pipe allowing entrance of the fluid into the longitudinal bore and to flow into the threaded bore of the clinch nut, each of the ports including a lower edge located at a single predetermined distance from an end face of the clinch nut.

An automobile transmission hydraulic oil fill system, comprising:

• a transmission oil pan;
• a two-piece standpipe system, including:
• a clinch nut having a sleeve connected to the clinch nut and a bore extending through the clinch nut and the sleeve, the clinch nut connected to the oil pan and having a threaded bore opening into the bore of the clinch nut and through the oil pan;
• and
• a stand-pipe fixed to the clinch nut, the stand-pipe including:
• a longitudinal bore in fluid communication with the threaded bore and with the bore of the clinch nut and the sleeve;
• an end cap defining a free end of the stand-pipe preventing entrance of hydraulic oil into the longitudinal bore of the stand-pipe during hydraulic oil fill of the transmission;
• and
• multiple ports created in a side wall of the stand-pipe allowing entrance of the hydraulic oil into the longitudinal bore and to flow out of the threaded bore of the clinch nut, each of the ports including a lower edge located at a single predetermined distance from an end face of the clinch nut;
• wherein the edges of the ports define a hydraulic oil fill level of the transmission.