Exhaust Manifold Comprising an EGR Passage and a Coolant Passage

摘要

Disclosed is an exhaust manifold that comprises an exhaust gas passage, an EGR passage, and a coolant passage. The exhaust gas passage extends fluidly between an exhaust gas inlet and an exhaust gas outlet positioned downstream thereof. The EGR passage extends fluidly between an EGR inlet and an EGR outlet positioned downstream thereof. The EGR inlet is defined by the exhaust gas passage. A coolant passage extends fluidly between a coolant inlet and a coolant outlet positioned downstream thereof. The coolant passage overlaps the exhaust gas passage and the EGR passage. The exhaust gas passage is configured to cool the exhaust gas, and EGR passage is configured to cool the recirculated portion of the exhaust gas.

主权项

1. An exhaust manifold, comprising;
an exhaust gas passage extending fluidly between an exhaust gas inlet and an exhaust gas outlet positioned downstream thereof, the exhaust gas passage configured to allow exhaust gas, from an internal combustion engine, to pass therethrough; an exhaust gas recirculation (“EGR”) passage extending fluidly between an EGR inlet and an EGR outlet positioned downstream thereof, the EGR inlet being defined by the exhaust gas passage, the EGR passage configured to allow a recirculated portion of the exhaust gas to pass therethrough; and a coolant passage extending fluidly between a coolant inlet and a coolant outlet positioned downstream thereof, the coolant passage overlapping the exhaust gas passage and the EGR passage, the coolant passage configured to cool the exhaust gas passage and the EGR passage via a coolant, the exhaust gas passage configured to cool the exhaust gas, the EGR passage configured to cool the recirculated portion of the exhaust gas.