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US 6,381,960 B1Granted
Turbocharger housing with exhaust gas recycling
AssigneeScania CV Aktiebolag
InventorJörgen Mårdberg
Life of this patent
Estimating the term…
Abstract
A turbocharger for an internal combustion engine and which has a housing with a turbine housed in a chamber in the housing, and driven by exhaust gases from the engine. The turbocharger has an integral EGR valve and wastegate.
Claims9
A housing for a turbocharger for an internal combustion engine, the housing including:
- a turbine chamber for receiving a turbine;
- an inlet to the turbine chamber and an exhaust outlet from the turbine chamber;
- and
- at least one passageway through the housing for holding an EGR valve, and at least one passageway through the housing for holding at least one wastegate;
- wherein there are more than one of the passageways respectively for at least one wastegate and for at least one EGR valve;
- and
- wherein the housing has respective ones of the passageways located outside the turbine chamber for receiving at least two of the wastegates and two of the EGR valves.
4 more elements
A housing for a turbocharger, wherein the housing includes a chamber therein for receiving a turbine, a pair of exhaust gas inlet ports to the housing and communicating to the turbine chamber and an exhaust gas outlet from the housing and communicating with the turbine chamber;
- at least two wastegate passageways through the housing communicating from the exhaust gas inlet ports respectively, bypassing the turbine chamber and connected to the exhaust gas outlet to thereby form the exhaust gas outlet for exhaust gases exiting the housing;
- each of the wastegate passageways being adapted to receive exhaust gas therein for bypassing the turbine chamber, wherein
- each exhaust gas inlet port communicates into a respective one of the wastegate passageways, and a separate EGR valve passageway communicates with at least one of the exhaust gas inlet ports, separate from the wastegate passageway and adapted to receive an EGR valve therein.
Dependencies are inferred from the claim text.