A fuel system (10) includes a fuel pump (16) having an inlet (42) and an outlet (44). The fuel system (10) also includes a jet pump assembly having a first fuel passage (68) defined by a first tube (70), the first fuel passage (68) having a first fuel passage inlet (50) and a first fuel passage outlet (72); and a second fuel passage (76) defined by a second tube (74) and connected to the outlet (44) of the fuel pump (16), the second fuel passage (76) having an exit orifice (82) which discharges a first flow (A) into the first fuel passage (68) which draws a second flow (B) into the first fuel passage (68) through the first fuel passage inlet (50) such that the first flow and the second flow combine in the first fuel passage (68) and exit the first fuel passage (68) through the first fuel passage outlet (72). The second fuel passage (76) also has an initial orifice (84) arranged upstream from, and in series with, the exit orifice (82).
FUEL SYSTEM HAVING A JET PUMP
KRAFTSTOFFSYSTEM MIT EINER STRAHLPUMPE
SYSTÈME DE CARBURANT COMPORTANT UNE POMPE À JET
2020-01-08
Patent
Electronic Resource
English
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED , Pumpen von Arbeitsfluiden durch unmittelbare Berührung mit einem anderen Arbeitsfluid oder durch Ausnutzung der Trägheit des zu pumpenden Arbeitsfluids |