22-08-2013 дата публикации
Номер: US20130213345A1
A terminal of a pipe of the kind used for the evacuation of a motor fluid used to lubricate and/or cool the auxiliary systems of an internal combustion engine, for example a turbocharger. The purpose of the invention is to obtain an easily manufactured and assembled return pipe terminal with which it is possible to carry out the return of fluids at the outlet of the car's engine block auxiliary devices (turbochargers, displacement compressors, etc.) in a more secure and watertight fashion. The pipe terminal includes improved means for the axial positioning thereof in the engine cylinder block or crankcase, which mainly comprises an abutment, a transition portion, and a coupling portion that connects the two parts. 1. A pipe for motor fluid return and entry to a crankcase which connects an outlet of a lubricant or coolant circuit of an auxiliary device of an engine cylinder block to the cylinder block or crankcase , the return pipe comprising:{'b': 10', '12', '18', '12', '10', '12, 'claim-text': [{'b': 16', '18', '12', '25', '12, 'an abutment geometry () with a larger diameter than that of said hole () in the motor cylinder block () so that it rests on and makes contact with a front supporting plane () of the motor cylinder block ();'}, {'b': 17', '16', '17', '16', '14, 'sub': '1', 'a transition portion () with decreasing generatrix (with a decreasing angle αwith respect to the axial axis of the pipe) in a direction towards said abutment geometry (); said transition portion () extending from said abutment geometry () to a groove or housing for a gasket (); and'}, {'b': 26', '16', '17, 'sub': '1', 'a coupling portion () with a curvature radius of Rwhich connects said abutment geometry () to said transition portion ().'}], 'at one of its ends a terminal () which is coupled to the engine cylinder block or crankcase () by its partial insertion and coupling in a hole () provided in the engine cylinder block (), said pipe terminal () including a positioning means for axial ...
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