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US 2004/0069284 A1Published application
Intercooler bypass
AssigneeInternational Engine Intellectual Property Company, LLC
InventorDavid Corba
Life of this patent
Estimating the term…
Abstract
A method of bypassing an intercooler (105) for an engine (100) includes the step of detecting (703) an idle condition for an engine (100). based on engine speed and load, air is induced (707) to bypass an intercooler (105) for the engine (100) such that air is input to an intake manifold (107) of the engine (100) through an intercooler bypass (115) that excludes the intercooler (105). Improved engine performance on vehicle launch and reduced emissions result.
Claims18
A method comprising the steps of:
- detecting an idle condition for an engine;
- based on engine speed and load, inducing air to bypass an intercooler for the engine such that air is input to an intake manifold of the engine through an intercooler bypass that excludes the intercooler.
An apparatus comprising:
- an intercooler disposed between a discharge pipe and an intake manifold;
- an intercooler bypass disposed between the discharge pipe and the intake manifold and excluding the intercooler;
- a bypass valve disposed in the discharge pipe such that when the bypass valve operates in a first position, airflow from the discharge pipe is directed into the intercooler and when the bypass valve operates in a second position, airflow from the discharge pipe is directed into the intercooler bypass and airflow into the intercooler is prevented;
- wherein the bypass valve is controllable by an engine control module that instructs the bypass valve to operate based on engine speed and load.
1 more element
Dependencies are inferred from the claim text.