Patent ID: 11927157
Assignee: INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 8:
9. A heat exchanger cleaning system (HECS), comprising:
an engine;
an engine intake conduit having an intake throttle valve disposed therein, and an engine exhaust port;
an exhaust manifold having a single inlet conduit and two outlet paths, wherein the single inlet conduit connects to the engine exhaust port, wherein a first path of the two outlet paths includes a thermal management valve disposed therein, and wherein a second path of the two outlet paths includes an exhaust gas recirculation (EGR) valve disposed therein;
an EGR cooler having a cooler inlet in fluid communication with the EGR valve and a cooler outlet in fluid communication with the intake throttle valve;
a first pressure sensor disposed in the first path upstream of the thermal management valve;
a second pressure sensor disposed in the second path upstream of the EGR valve;
a third pressure sensor disposed in the engine intake conduit upstream of the intake throttle valve; and
a controller in electrical communication with the EGR valve, the thermal management valve, the intake throttle valve, the first pressure sensor, the second pressure sensor, and the third pressure sensor;
wherein the controller is configured to implement a predetermined set of operating parameters for the engine, the EGR valve, the thermal management valve, and/or the intake throttle valve, wherein implementation of the predetermined set of operating parameters causes an increased flow velocity of exhaust gas through the EGR cooler.