A system and methods for a vehicle are provided for adjusting each of a speed of a radiator fan and a position of grille shutters of the vehicle responsive to a temperature at a wastegate exceeding a temperature threshold. In one example, a system may include a radiator fan at a front end of a vehicle, an engine coupled to an exhaust passage, a turbine in the exhaust passage having a bypass conduit, a wastegate positioned in the turbine conduit, and the wastegate receiving airflow from downstream of the radiator fan via a cooling duct.

Systems and methods for reducing heat loss to a turbocharger during cold engine starting are described. In one example, a turbocharger bypass pipe and a turbocharger turbine pipe are oriented at forty five degrees relative to a longitudinal axis of a catalyst so that a turbocharger turbine may be completely bypassed, thereby increasing the amount of energy that may be transferred to the catalyst.

A number of variations may include a product comprising: a linkage system comprising: a first and second lever; a first interconnecting component and second interconnecting component operably connected to the first and second levers; a link bar having a first end with a first opening for receiving the first or second interconnecting component, and providing a clearance between the first opening and the first or second interconnecting component and; a second end with a second opening for receiving the first or second interconnecting component and providing a clearance between the second opening and the first or second interconnecting component; and a biasing device having a first and second end for engagement with the first and second interconnecting components and at least one section to allow for increasing or decreasing its length, wherein when the first or second end of the biasing device is engaged with one of the first or second interconnecting component and an external force is applied to one of the first or second ends of the biasing device to cause the biasing device to either increase or decrease in length to allow engagement with one of the first or second interconnecting component and to store energy, and wherein when the external force is removed from the biasing device, the stored energy of the biasing device provide a force that causes the first and second interconnecting components to move in a direction that overcomes the clearances between the first and second interconnecting components and the first and second openings of the link bar and provides contact between the first and second interconnecting components and the first and second openings of the link bar and wherein the contact is maintained by the force provided by the stored energy.

A valve device for a vehicle may include a pneumatic valve having first and second chambers in which respective pressures thereof are regulated, and a pressure regulation valve coupled to the pneumatic valve, the pressure regulation valve communicating with the first chamber, including a positive pressure side opening and a negative pressure side opening, and selectively opening and closing the positive pressure side opening and the negative pressure side opening to regulate the pressure in the first chamber.

Steering rod for connecting an actuator to a turbocharger drive member, comprising an elongated main body (2), which extends between a first end (5) equipped with a first through-hole (7), and a second end (6) equipped with a second through-hole (8), and two bushings (3), (4) immovably mounted in the through-holes (7), (8), wherein the bushings (3), (4) are made of a material which has a greater resistance to mechanical wear than the material delimiting the through-holes (7), (8), and wherein each bushing (3) (4) has an outer surface that is in contact with an inner part of the through-hole (7), (8) and has a radial recess (9), the second material tightening the bushing (3), (4) preventing it from rotating and filling the recess (9) preventing the bushing (3), (4) from being extracted from the second through-hole (7), (8).

Control techniques for a turbocharger of an engine utilize a wastegate valve configured to divert exhaust gas from a turbine of the turbocharger that is rotatably coupled to a compressor of the turbocharger. A controller is utilized to obtain a torque request for the engine, determine a target compressor power based on the engine torque request, determine a normalized target turbine power based on the target compressor power, determine a target position for the wastegate valve based on the normalized target turbine power and a normalized exhaust flow, and actuate the wastegate valve to the target position. Such control techniques involve the actual calculation of much less intermediate parameters, such as target turbine pressure ratio, which results in more efficient calibration and implementation.

An electromagnetic valve for an internal combustion engine includes a housing, an electromagnetic actuator arranged in the housing, the electromagnetic actuator having an electromagnetic armature and a core, a control element which is arranged to protrude axially out of the housing and which is connected to the electromagnetic armature so as to form a movable unit together therewith, the movable unit having a radial recess, and an arrangement which delimits an axial movement of the movable unit away from the core of the electromagnetic actuator. The arrangement includes at least one hook arranged on the housing. The at least one hook engages into the radial recess of the movable unit.

In a control system for an internal combustion engine, the waste gate actuator controls the opening and closing of a waste gate valve according to operation amount controlled by the control device, an actual position of the waste gate actuator detected by the position sensor for detecting the position of the waste gate actuator which correlates to the actual open position of a waste gate valve is inputted to the control device, the control device performs control for limiting the operation amount to stop to predetermined opening deviation in the direction toward open side from open side stopper position of the waste gate.

A turbocharger (10) that uses exhaust gas flow to drive a turbine wheel (12) having a barrel or piston-type wastegate valve assembly (26, 126) with a wastegate valve (28, 128) that controls exhaust gas flow bypassing the turbine wheel (12) to control turbine work. A cylinder (30, 130), which may have a through hole (32, 132), is moveable in a tubular chamber (22) and functionally operates with a wastegate port (24) in the turbine housing (20) for controlling exhaust gas flow. An actuator (36, 136) operably controls movement of the cylinder (30, 130).

An actuation device (1), in particular electronic actuator, having a housing (2); and having an actuation shank which has a first shank portion guided in the housing (2), and which has a second shank portion (3) projecting out of the housing (2), wherein a shielding cap (4) is provided which is fastened to the housing (2) and which surrounds the second shank portion (3) with the exception of a fastening region (5).