초록 ▼

An internal combustion engine of the V-type configuration includes a balanced flow EGR control apparatus having a valve comprising a stem having two linearly aligned, substantially similarly plug valve bodies engaged thereto with a predetermined distance therebetween. The valve housing has separate

An internal combustion engine of the V-type configuration includes a balanced flow EGR control apparatus having a valve comprising a stem having two linearly aligned, substantially similarly plug valve bodies engaged thereto with a predetermined distance therebetween. The valve housing has separate ports for receiving exhaust flow from each cylinder bank and a common outlet passageway communicating with the intake manifold, the ports being in linear alignment. One valve body is disposed to plug the exhaust port from the exhaust port side while the other valve body plugs the other exhaust port from the intake outlet side. Each valve body is configured, sized and positioned over a respective port in a manner where pressure of flow against one valve body effectively cancels out the pressure of flow against the other valve body, producing a valve that is easily maintained in an appropriate seated position thereof and opened with minimum force. The apparatus is disclosed in two embodiments, one of which accommodates rotary actuation and another of which accommodates linear actuation, with each embodiment being operable under control of an engine ECU in response to readings of operational parameters of the engine.

대표청구항 ▼

[ What is claimed is:] [1.] An internal combustion engine comprising:a plurality of cylinder banks, each bank having an exhaust manifold and an associated exhaust passage fluidly separated from an exhaust passage of another bank, and an intake manifold shared with the other bank;an exhaust gas recir

[ What is claimed is:] [1.] An internal combustion engine comprising:a plurality of cylinder banks, each bank having an exhaust manifold and an associated exhaust passage fluidly separated from an exhaust passage of another bank, and an intake manifold shared with the other bank;an exhaust gas recirculation valve apparatus comprising a housing having separate exhaust inlet ports connected exclusively respectively to each of said banks and a single outlet port communicating with the intake manifold, and a valve member including a linear valve stem upon which two plug valve bodies are mounted, each at a predetermined position there along so that each effectively seals one of said inlet ports from said outlet port, one of said valve bodies sealing said one inlet port from the inlet port side and the other of said valve bodies sealing the other of said inlet ports from the outlet port side, the valve stem being functionally engaged to an actuator;and an engine ECU operatively associated with said actuator to cause the valve stem to unseat the valve bodies to open the inlet ports in a predetermined manner based on readings of operational parameters of the engine being monitored by the ECU.