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US 2001/0032631 A1Published application
Engine mounting of an exhaust gas recirculation valve
AssigneeSiemens Canada Limited
InventorsJohn Edward Cook, Scott Hussey
Life of this patent
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AssigneeSiemens Canada Limited
InventorsJohn Edward Cook, Scott Hussey
Estimating the term…
An internal combustion engine cylinder head (142) has an exterior wall that contains a walled compartment (140). A wall of that compartment is exposed to an internal coolant passage (146) through which liquid coolant circulates. An exhaust gas passageway (160) running through the compartment has an exhaust gas entrance (162) into the compartment and an exhaust gas exit (164) from the compartment. The compartment comprises a receptacle (148) that intersects the exhaust gas passageway between the entrance and the exit. An EGR valve (10) disposed on the exterior wall comprises a base (12) that has an inlet port (30) and an outlet port (32) and that is disposed within the receptacle with the inlet port open to the entrance via the passageway and the outlet port open to the exit via the passageway. As hot exhaust gas is recirculated, coolant that circulates through the coolant passage aids in limiting peak temperatures to which the valve may be subjected.
An internal combustion engine comprising a cylinder head comprising an exterior wall that contains a walled compartment comprising a wall exposed to an internal coolant passage in the head, through which passage liquid coolant circulates, an exhaust gas passageway through the walled compartment comprising an exhaust gas entrance into the compartment and an exhaust gas exit from the compartment, the compartment comprising a receptacle that intersects the exhaust gas passageway between the entrance and the exit, and an EGR valve disposed on the exterior wall and comprising a base that has an inlet port and an outlet port and that is disposed within the receptacle with the inlet port open to the entrance via the passageway and the outlet port open to the exit via the passageway.
An internal combustion engine comprising a part having an exterior wall, a portion of which is covered on the exterior by an EGR valve that comprises a stamped metal base containing an inlet port and an outlet port, the portion of the exterior wall covered by the EGR valve comprising a walled compartment having a wall exposed to an internal coolant passage which passes internally through the part and through which liquid coolant circulates, an exhaust gas passageway through the walled compartment comprising an exhaust gas entrance into the compartment and an exhaust gas exit from the compartment, the compartment comprising a receptacle that intersects the exhaust gas passageway between the entrance and the exit, and the EGR valve inlet port and outlet port are disposed within the receptacle with the inlet port open to the entrance via the passageway and the outlet port open to the exit via the passageway.
Dependencies are inferred from the claim text.