Abstract: A method for operating an engine system in an internal combustion engine comprising during a first operating condition, circulating coolant through a coolant jacket in a turbine housing at least partially enclosing a turbine rotor and during a second operating condition, replacing coolant in the coolant jacket with air from a venting reservoir.

Abstract: A method includes generating an exhaust gas from combustion gases with a turbine; recirculating the exhaust gas along an exhaust recirculation flow path; reducing moisture within the exhaust gas along the exhaust recirculation path with an exhaust gas processing system; providing the exhaust gas to a first exhaust gas inlet of an exhaust gas compressor for compression; and providing the exhaust gas from the exhaust recirculation path to a second exhaust gas inlet separate from the first exhaust gas inlet for cooling, preheating, sealing, or any combination thereof.

Abstract: A supercharging system includes a waste gate valve and an ECU. The ECU is configured to: calculate a first parameter and a second parameter, each of which has a positive correlation with an intake air amount; obtain a first difference by subtracting a first boost pressure from a second boost pressure; obtain a second difference by subtracting the first parameter from the second parameter; obtain a quotient by dividing the first difference by the second difference; and determine that a malfunction occurs in the waste gate valve when the quotient is larger than a threshold value.

Abstract: An apparatus for the actuation of a throttle valve, in particular a throttle valve arranged in an intake system of an internal combustion engine, uses a servomotor, in which apparatus at least one device for thermal decoupling is arranged between the throttle valve and servomotor. A shaft of the servomotor is coupled to a shaft of the throttle valve via a torque-transmitting coupling element with a definedly low heat transfer capability.

Abstract: A turbocharger has a regulating unit for controlling the output of the turbocharger. The regulating unit can be adjusted by an actuator. The actuator is connected to the regulating unit by way of an actuating member and a lever. The actuating member and the lever are interconnected by way of a screw-nut element.

Abstract: One illustrative embodiment includes a turbocharger (16, 18) with a turbine (94) and a compressor (96). The turbine (94) has an inlet passage (114) which may directly communicate with a blowdown exhaust passage (34, 36, 38) of a cylinder head (12) of an internal combustion engine (14). The inlet passage (114) may directly receive exhaust gas from the blowdown exhaust passage (34, 36, 38).

Abstract: In a two-stage supercharging electric-assist turbocharger, a first compressor wheel, a rotor of an electric motor, a second compressor wheel, and a turbine wheel are coaxially coupled to a same, common shaft member, in that order. A compressor housing is structured to define therein a communicating passage to accommodate the electric motor in the communicating passage. A first water jacket is formed in at least one rib integrally formed with an outer periphery of a motor housing and also serving as a radiating fin, for forced-cooling air flowing through the communicating passage. A second water jacket is formed in a motor housing for forced-cooling a stator of the electric motor. A third water jacket is formed in an intermediate housing constructing a part of the compressor housing for forced-cooling a control unit configured to control the electric motor.

Abstract: When it is detected that an exhaust cut valve is stuck in a closed state, a control device stops feedback control and maintains a wastegate valve in a completely open state in each of an open operation range and a closed operation range. When it is detected that the exhaust cut valve is stuck in an open state, the control device stops the feedback control and maintains the wastegate valve in the completely open state in the closed operation range, whereas the control device performs the feedback control in the open operation range.

Abstract: A rod end is provided for an actuator for a turbocharger high temperature wastegate. The rod end includes a stem configured to fixedly engage an actuator rod, a socket secured to the stem, and a spherical bearing disposed within the socket. The bearing includes an outer member and an inner member disposed at least partially within the outer member. The inner member is misalignable and rotatable in relation to the outer member. An area of engagement is defined by an interface of an inner engagement surface of the outer member and an outer engagement surface of the inner member. The spherical bearing is configured to withstand temperatures in excess of 260° C. (500° F.).

Abstract: A multiple fuel capable, pre-mixed, low emission injector is provided which is particularly suited for burning high flame speed fuels. The fuel injector includes an injector body having a preliminary pre-mixing chamber, an intermediate pre-mixing chamber and a final pre-mixing chamber. A fuel distributor separates the preliminary pre-mixing chamber from the intermediate pre-mixing chamber. A guide vane separates the intermediate pre-mixing chamber from the final pre-mixing chamber.

Abstract: In a non-EGR region that is a light load operating region, an EGR control valve (21) is opened at a predetermined infinitesimal opening degree M that corresponds to such infinitesimal EGR ratio as not to affect an ignition timing. With this control, since an EGR passage (20) is basically in a state in which the EGR passage (20) is filled with EGR gas, when an operating condition is changed from the non-EGR region to an EGR region and the EGR control valve (21) is opened so as to gain a target EGR ratio, a desired quantity of the EGR gas is introduced into an intake passage (2) substantially at the same time as the opening of the EGR control valve (21). An actual EGR ratio can thus follow the target EGR ratio with a good response.

Abstract: A control apparatus for an internal combustion engine is configured to: open a waste gate valve if switching operation modes from supercharged lean burn operation to stoichiometric burn operation and if it is necessary to decrease an air amount; control an exhaust variable valve train so that, during a response delay period accompanying the waste gate valve being opened, a first valve opening period EX1 and a second valve opening period EX2 are set and the second valve opening period overlaps with a valve opening period IN; control a fuel injection valve so as to inject fuel of an amount necessary to realize the stoichiometric air-fuel ratio under a stoichiometric requested air amount during the response delay period; and control the second valve opening period EX2 of the exhaust valve so that, during the response delay period, the air amount comes close to the requested air amount.

Abstract: A method and apparatus are disclosed for operating an internal combustion engine equipped with a turbocharger and an exhaust gas recirculation pipe fluidly connecting an exhaust gas line to an air intake duct upstream of a compressor of the turbocharger. A value of a parameter indicative of a temperature of a portion of the exhaust gas recirculation pipe is determined. Exhaust gas recirculation via the exhaust gas recirculation pipe is prevented when the determined value is lower than a predetermined threshold value thereof. The air intake duct portion of compressed air exiting from the compressor is recirculated via the portion of the exhaust gas recirculation pipe.

Abstract: The present invention provides a method for connecting a turbine blade or vane to a turbine disk or to a turbine ring. First, a connecting body is formed on the turbine blade or vane by supplying an additive suitable for fusion welding to a surface of the turbine blade or vane, melting the additive on the surface, with incipient melting of the surface, and allowing the additive and the surface to solidify. Then, the connecting body is connected to the turbine disk or to the turbine ring by means of a fusion welding process.

Abstract: An apparatus for retrieving exhaust heat of an engine, may include the engine including a plurality of combustion chambers, an intake line, an exhaust line, a turbocharger including, a turbine provided on the exhaust line, and a compressor provided on the intake line and compressing external air, an exhaust gas recirculation (EGR) apparatus including an EGR line branched from the exhaust line at a rear end of the turbocharger and merged with the intake line, an EGR cooler disposed on the EGR line, and an EGR valve to adjust an amount of re-circulated exhaust gas, an intercooler to cool the intake gas introduced through the intake line, an intercooler cooling line passing through a radiator and the intercooler, an EGR cooling line passing through the radiator and the EGR cooler, an EGR exhaust line, and an exhaust adjusting valve disposed on the EGR exhaust line.

Abstract: A vehicle includes a frame supporting an engine, a transmission including an input shaft and an output shaft, a driving device linked to the output shaft so that power is transmitted therebetween, and a supercharger including a rotation shaft linked to the output shaft so that power is transmitted therebetween. The supercharger is fixed to the frame.

Abstract: A compound cycle engine having an output shaft; at least two rotary units each defining an internal combustion engine, a first stage turbine, and a turbocharger is discussed. The first stage turbine includes a rotor in driving engagement with the output shaft between two of the rotary units. The exhaust port of each rotary unit is in fluid communication with the flowpath of the first stage turbine upstream of its rotor. The outlet of the compressor of the turbocharger is in fluid communication with the inlet port of each rotary unit. The inlet of the second stage turbine of the turbocharger is in fluid communication with the flowpath of the first stage turbine downstream of its rotor. The first stage turbine has a lower reaction ratio than that of the second stage turbine. A method of compounding at least two rotary engines is also discussed.

Abstract: Systems and a method are provided for producing an aromatic hydrocarbon and generating electricity from a tail gas stream. The method includes feeding a first stream including a raw natural gas into a reactor. The method includes converting the first stream, at least in part, to a second stream including an aromatic hydrocarbon within the reactor. The method includes separating the second stream into a tail gas stream and a liquid aromatic hydrocarbon stream and combusting at least a portion of the tail gas stream to generate electricity.

Abstract: A digital waste gate arrangement in an internal combustion piston engine has at least one turbocharger with a compressor part and a turbine part. A flow control unit has more than two individually controllable on-off valve units, and a pneumatic actuator system is arranged to control each on-off valve individually. At least one control gas inlet port is in connection with the pneumatic actuator system, which control gas inlet port is arranged in connection with a downstream side of a compressor part of the turbocharger via a control gas passage. The control gas for operating the flow control unit is arranged available for the pneumatic actuator sys-tem through the control gas passage.

Abstract: Systems, methods and techniques for exhaust gas recirculation are provided. The system includes mixing exhaust flow from at least one cylinder of an engine with air in an air intake system prior to combustion. The exhaust flow from the at least one cylinder is accumulated prior to mixing and distributed into the intake air system in a controlled manner.