초록 ▼

Systems and methods for an engine are described. In one example, a system may include a variable venturi coupled in an intake of the engine; an exhaust gas recirculation system having an exhaust gas recirculation flow path, the exhaust gas recirculation flow path coupled to the variable venturi; and

Systems and methods for an engine are described. In one example, a system may include a variable venturi coupled in an intake of the engine; an exhaust gas recirculation system having an exhaust gas recirculation flow path, the exhaust gas recirculation flow path coupled to the variable venturi; and a vacuum-utilizing device or system coupled to the variable venturi. In another example, a method may include coordinating adjustment of an exhaust gas recirculation valve coupled to the exhaust gas recirculation system, a fuel vapor purging valve coupled to the fuel vapor purging system, and the variable venturi in response to operating conditions.

대표청구항 ▼

The invention claimed is: 1. A method of controlling engine operation of an engine having an exhaust gas recirculation system and a fuel vapor purging system, the method comprising:delivering exhaust gas recirculation flow from the exhaust gas recirculation system to a variable venturi coupled in an

The invention claimed is: 1. A method of controlling engine operation of an engine having an exhaust gas recirculation system and a fuel vapor purging system, the method comprising:delivering exhaust gas recirculation flow from the exhaust gas recirculation system to a variable venturi coupled in an intake of the engine;delivering fuel vapor flow from the fuel vapor purging system to the variable venturi coupled in an intake of the engine; andcoordinating adjustment of an exhaust gas recirculation valve coupled to the exhaust gas recirculation system, a fuel vapor purging valve coupled to the fuel vapor purging system, and the variable venturi in response to operating conditions.