System and method for condensate removal from egr system
AssigneeInternational Engine Intellectual Property Company, LLC
InventorGrzegorz Siuchta
Life of this patent
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Abstract
An exhaust gas recirculation system for an engine having an exhaust system includes an EGR cooler in fluid communication with an exhaust manifold. The EGR cooler receives a portion of the engine's exhaust gas. A cooled EGR passage is downstream of the EGR cooler, and an air intake line is in fluid communication with an intake manifold. A collecting vessel is located at or downstream of the EGR cooler for receiving condensate, and a condensate evacuation line is in fluid communication with the collecting vessel for receiving condensate from the collecting vessel.
Claims20
An exhaust gas recirculation system for an engine having an exhaust system, the exhaust gas recirculation system comprising:
- an EGR cooler in fluid communication with an exhaust manifold of the engine and receiving a portion of the engine's exhaust gas;
- a cooled EGR passage downstream of the EGR cooler;
- an air intake line in fluid communication with an intake manifold of the engine;
- a collecting vessel located at or downstream of the EGR cooler for receiving condensate;
- and
- a condensate evacuation line in fluid communication with the collecting vessel for receiving condensate from the collecting vessel.
A method of removing condensate from an EGR system having an EGR cooler, an EGR valve disposed downstream of the EGR cooler, and an air intake line, the method comprising the steps of:
- positioning a collecting vessel at or downstream of the EGR cooler for collecting condensate in the EGR system;
- attaching a condensate evacuation line to the collecting vessel for permitting the flow of condensate out of the collecting vessel;
- and
- locating a mixer in fluid communication with the condensate evacuation line.
A system for removal of condensate from an EGR system in fluid communication with an engine and an exhaust system, the condensate removal system comprising:
- an exhaust manifold of the engine;
- a turbine disposed in fluid communication and downstream of the exhaust manifold and receiving a first portion of the engine's exhaust gas;
- a mixer disposed in fluid communication and downstream of the turbine;
- an EGR cooler in fluid communication and downstream of the engine and receiving a second portion of the exhaust gas;
- a cooled EGR passage downstream of the EGR cooler;
- an air intake line in fluid communication with the engine;
- an EGR valve downstream of the EGR cooler that selectively permits the flow of the second portion of the exhaust gas into the air intake line;
- a collecting vessel located at or downstream of the EGR cooler;
- and
- a condensate evacuation line in fluid communication with the collecting vessel for receiving condensate from the collecting vessel and permitting the flow of condensate to the mixer.
Dependencies are inferred from the claim text.