Noise reduction fuel tube for automotive lift pump

A tube is arranged for conveying fuel in a vehicle fuel delivery module (10 fig 1), comprising first and second ends 26, 28 and a portion 30 extending between the ends 26, 28. The portion 30 is delimited by a longitudinal wall 24 having annular corrugations 32 and comprising at least one first part...

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Bibliographische Detailangaben
Hauptverfasser:	Jean-Francois Perinet, Dane Wojcik
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A tube is arranged for conveying fuel in a vehicle fuel delivery module (10 fig 1), comprising first and second ends 26, 28 and a portion 30 extending between the ends 26, 28. The portion 30 is delimited by a longitudinal wall 24 having annular corrugations 32 and comprising at least one first part presenting a first thickness and at least one second part presenting a second thickness. The first thickness is thinner than the second thickness so that the tube 22 expands when fuel flows therein. The invention mitigates noise resulting from pressure pulses. A tube assembly may comprise a shell (40 fig 4) fitted around the longitudinal wall 24 and mounted movably between two positions and provided with complementary pieces (42, 44 fig 4) for snap-in fixation.