An exhaust-gas turbocharger arrangement, including: three exhaust-gas turbochargers, for being arranged above an engine top side, being a high-pressure exhaust-gas turbocharger, a first low-pressure exhaust-gas turbocharger, and a second low-pressure exhaust-gas turbocharger; a high-pressure stage…
An ECM executes a catalyst early activation control at the cold start of an engine such that the activation of a catalyzer is promoted by opening a WGV. Further, the ECM performs a diagnosis process of diagnosing whether or not the WGV is stuck closed, based on the amplitude of the output…
An ECM executes a catalyst early activation control at cold start of an engine such that the activation of a catalyzer is promoted by opening a WGV. Further, the ECM performs a diagnosis process of, during execution of the catalyst early activation control, repeating opening and closing of the WGV…
An engine control device performs air-fuel ratio control of an engine through a main air-fuel ratio feedback process based on an output of a front air-fuel ratio sensor, a sub air-fuel ratio feedback process of alternately switching a target air-fuel ratio between a lean-side target air-fuel ratio…
An engine control device is provided, which includes a blowby gas passage connecting an engine body to an intake passage so that blowby gas leaked from a combustion chamber is recirculated to the intake passage, a boost pressure changer configured to change a boost pressure of a turbocharger, and a…
A turbocharger according to an embodiment is a turbocharger including a turbine housing for housing a turbine wheel rotary driven by an exhaust gas, a bearing housing for housing a rotational shaft on which the turbine wheel is mounted, the bearing housing being adjacent to the turbine housing, and…
A method and system for controlling operation of a two-stroke engine having a turbocharger includes the two-stroke engine comprising an electronically controlled exhaust valve. A throttle position sensor generates a throttle position signal corresponding to a position of a throttle plate of a…
A turbine arrangement for controlling a gas flow, in particular for a fuel cell () or for an internal combustion engine (), and a charging device having such a turbine arrangement, is described, in which the gas flow supplied by an inlet () can be controlled by an adjustable slide bushing ()…
An assembly can include a turbine housing that includes a bore, a wastegate seat and a wastegate passage that extends to the wastegate seat; a bushing disposed at least in part in the bore; a rotatable wastegate shaft received at least in part by the bushing; a wastegate plug that extends from the…
A system or approach for identifying mean value models with a set of equations and appropriate constraints which define the model validity. A model may be used to design an algorithm for an engine system, collecting sensed data, optimizing control parameters based on the models and data, and…
To provide a waste-gate valve device with a good flow-rate controllability. A waste-gate valve device 1 includes: a turbine housing 3 provide with a waste-gate channel 2 through which exhaust gas bypasses a turbine; and a waste-gate valve 4 to open and close an outlet of the waste-gate channel 2…
To provide a waste-gate valve device with a good flow-rate controllability. A waste-gate valve device 1 includes: a turbine housing 3 provide with a waste-gate channel 2 through which exhaust gas bypasses a turbine; and a waste-gate valve 4 to open and close an outlet of the waste-gate channel 2…
The present invention relates to a charging device (1), in particular a turbocharger, with a first component (3) which is prestressed by means of a spring element (4) against a second component (5). What is essential to the invention is that the spring element (4) is designed as a retaining ring…
A method can include applying a force to a control arm operatively coupled to a shaft; transmitting at least a portion of the force from the shaft, via an arm, to a plug positioned with respect to a wastegate seat of a turbine housing; maintaining an isostatic condition for relative positions of…
Control valve (1) for attachment to a flow channel housing (10) of an internal combustion engine of a motor vehicle, comprising a flow channel housing part (20, 20a) which has at least one flow inlet opening (21) and one flow outlet opening (22), a control body (41) which is arranged in the flow…
An assembly for a turbocharger includes a turbine housing (810) that defines an exhaust inflow chamber (828) that includes a wastegate valve seat (826) and that defines an exhaust outflow chamber (830); and a wastegate valve plug (856) that includes a seal surface where, in a closed state, the seal…
A turbocharger system of an embodiment includes: a wastegate valve (20); an electrically-operated actuator (21) configured to adjust a valve lift of the wastegate valve (20); a temperature acquisition unit (25) configured to acquire a target temperature which is a temperature of the turbocharger…
The present invention provides a turbocharger 1 that prevents a seizure of a shaft member 40, prevents a leakage of exhaust gas, suppresses deterioration of components, and reduces a number of components. The turbocharger 1 includes a waste gate valve 30 which is connected to the shaft member 40…
The valve (2) has a cylindrical valve body (4) projecting into an opening of an inlet wall of a gas inlet chamber, and having an oblique opening (5). A closure flap (1) includes a contact surface (3) intended to cooperate with the valve body, so ??as to close the oblique opening of the valve body…
The valve (100) has primary and secondary flow ports (16,18) that are provided with primary and secondary valve seats (20,22) which are cooperated with valve elements (24,26). A pivot axis (32) is formed with primary and secondary lever arms (28,30). Primary and secondary valve elements are…
The present disclosure generally relates to a self-cleaning throttle valve (80) to be used in an internal combustion engine. The disclosed throttle valve (80) may comprise a valve body (100) configured to be rotatably arranged within a housing (90). The valve body (100) may comprise a…
The turbocharger (100) has a waste gate valve mechanism (102) that adjusts opening degree of waste gate port (101) of turbine housing (106). The axial ends (104,105) of spindle (103) of waste gate valve mechanism are rotatably mounted on housing. A waste gate valve (107) of valve mechanism is…
The device (10) has a lever (12) connected with a mechanical control device. A valve body (18) is provided with a flap portion (20), which covers a bypass aperture. The lever and the valve body are formed in one-piece and made of corrosion resistant nickel-base alloy and austenitic stainless steel…
The control valve, for use in multistage superchargers for IC engines controls the exhaust from the engine, optionally mixed with exhaust gases (4) from a turbocharger. It comprises a butterfly valve (7) whose tips form a seal with seatings (12, 13) in the exhaust duct when it is fully closed.
An exhaust gas sealing system for a turbocharger including a control valve (41) for controlling a flow of an exhaust gas in a turbine housing (11), a shaft (42) extending to an outside of the turbine housing (11) through a bearing bore (13a) provided on the turbine housing (11), one end of the…
The method involves a regulating arrangement for implementing the predefined control parameter defining a desired position for an element of a final control element (1) and generating a control signal depending on the desired position with which the final control element is driven to set the…
A turbocharger assembly has a housing (1) in which is formed a turbine volute inlet duct (4) having a butterfly valve (8) disposed therein and a bypass duct (6) which contains a swing valve (15), the valves being operable to control the flow of exhaust gas through each duct. A link member (30) is…