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US 9,957,882 B2Granted
Internal combustion engine with turbine
AssigneeFord Global Technologies, LLC
InventorsJoerg Kemmerling, Helmut Matthias Kindl, Vanco Smiljanovski, Franz Arnd Sommerhoff, Andreas Kuske, Frank Wunderlich
Life of this patent
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Abstract
Methods and systems are provided for controlling a turbine within an internal combustion engine. In one example, a turbine system within an internal combustion engine may include at least one turbine with a housing that may further include at least one impeller mounted on a rotatable shaft, inlet and outlet regions, and at least one overpressure line including a self-controlling valve for controlling the flow of exhaust gas.
Claims13
An internal combustion engine comprising:
- an exhaust gas discharge system;
- and
- at least one turbine comprising at least a turbine housing, and an impeller mounted on a rotatable shaft, wherein the turbine housing comprises:
- an inlet region for a supply of exhaust gas, the inlet region being arranged upstream of the at least one impeller;
- an outlet region for discharge of the exhaust gas, the outlet region being arranged downstream of the at least one impeller and adjoining the at least one impeller;
- at least one exhaust gas-conducting flow duct which connects the inlet region to the outlet region via the impeller;
- and
- one or more overpressure lines which branches off from the at least one exhaust gas-conducting flow duct upstream of the outlet region and which opens into the exhaust gas discharge system downstream of the at least one impeller, and wherein, a self-controlling pressure valve is arranged in the overpressure line, the pressure valve being arranged at an outlet side in the overpressure line, the turbine being equipped with a variable turbine geometry which comprises adjustable guide vanes, arranged in the inlet region of the turbine for influencing flow direction, wherein the overpressure line runs through a receptacle of the turbine which comprises a cassette-like form interior to and spaced away from the turbine housing.
5 more elements
A method, comprising:
- via a controller, adjusting first and second overpressure relief valves of an engine exhaust turbine over-pressure line responsive to sensed engine operating conditions, the over-pressure line running through a receptacle of a turbine which comprises a cassette-like form positioned inside and spaced away from a turbine housing, the receptacle receiving variable vanes of a variable geometry turbocharger,
- wherein an engine includes an exhaust passage with the turbine having at least the turbine housing, and an impeller mounted on a rotatable shaft, wherein the turbine housing comprises:
- an inlet region for a supply of exhaust gas, the inlet region being arranged upstream of the at least one impeller;
- an outlet region for discharge of the exhaust gas, the outlet region being arranged downstream of the at least one impeller and adjoining the at least one impeller;
- and at least one exhaust gas-conducting flow duct which connects the inlet region to the outlet region via the impeller;
- the overpressure line branching off from the at least one exhaust gas-conducting flow duct upstream of the outlet region and opening into an exhaust gas discharge system downstream of the at least one impeller.
3 more elements
Dependencies are inferred from the claim text.