Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.
VACUUM CREATION SYSTEM HAVING AN EJECTOR, PNEUMATIC CONTROL VALVE AND OPTIONALLY AN ASPIRATOR
VAKUUMERZEUGUNGSSYSTEM MIT EINEM EJEKTOR, PNEUMATISCHEN STEUERVENTIL UND EINEM OPTIONALEN ASPIRATOR
SYSTÈME DE CRÉATION DE VIDE AYANT UN ÉJECTEUR, UNE VANNE DE COMMANDE PNEUMATIQUE ET, FACULTATIVEMENT, UN ASPIRATEUR
2021-03-24
Patent
Elektronische Ressource
Englisch
IPC: | F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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 / F16K VALVES , Ventile |
VACUUM CREATION SYSTEM HAVING AN EJECTOR, PNEUMATIC CONTROL VALVE AND OPTIONALLY AN ASPIRATOR
Europäisches Patentamt | 2015
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