48 results about "Wastegate" patented technology

The utility model relates to the technical field of waste gas bypass valve, specifically is a kind of booster waste gas bypass valve mounting bracket, including support, the inside of the support is equipped with second sliding slot, the inside sliding installation connecting plate of second sliding slot, the both ends of connecting plate are respectively fixedly connected with first fixed plate and second fixed plate, the first fixed plate is equipped with first installation slot in the end away from connecting plate, the first installation slot is used for second valve mounting plate installation insertion, the second valve mounting plate fixed sleeve is connected on the outside upper portion of waste gas bypass valve body. By modular mounting bracket, make waste gas bypass valve insertion automatic locking;When disassembling, only need to press push block or push rod can be quickly unlocked, which makes waste gas bypass valve body and connecting rod can be completely independently disassembled and maintained, when repairing or replacing single component, there is no need to disassemble the whole mechanism as a whole, significantly simplify the operation process, reduce maintenance complexity and time cost.

A turbo-boost controlled intake system is disclosed that provides a driver of a vehicle with greater control over vehicle performance. The turbo-boost controlled intake system includes a control module that is coupled with an aircharger air intake. The control module instructs an electronic control unit of the vehicle to increase manifold pressure to a higher level before releasing the pressure through a waste gate so as to provide a greater power output of the engine. The turbo-boost controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness couples the control module with a turbo inlet pressure sensor, a manifold absolute pressure sensor, and an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the power output of the engine.

This improves the responsiveness of the actual boost pressure when the opening of the wastegate valve is changed. [Solution] The internal combustion engine comprises a cylinder, an intake passage, an exhaust passage, a turbocharger, and an actuator. The turbocharger includes a turbine wheel, a compressor wheel, a bypass passage, and a wastegate valve. The wastegate valve opens and closes the flow path of the bypass passage. The control device of the internal combustion engine acquires the actual boost pressure as the measured value of the boost pressure, which is the pressure in the portion downstream of the compressor wheel in the intake passage (S13). When the control device of the internal combustion engine changes the opening of the wastegate valve, it increases the amount of change in power supplied to the actuator when the amount of change in the actual boost pressure over a predetermined period is a first value, compared to when the amount of change in the actual boost pressure over a predetermined period is a second value which is greater than the first value (S51, S52).

The application discloses a control method and related device of a turbocharger wastegate valve. The turbocharger wastegate valve is externally connected with a constant pressure reducing valve and a gas storage tank at a through hole. The high-pressure gas provided by the gas storage tank is output as constant pressure gas via the constant pressure reducing valve and acts on an actuator diaphragm. Therefore, after determining a target pressure after pressure of the turbocharger under a current driving condition, the constant pressure reducing valve outputs constant pressure gas according to the target pressure after pressure and an outlet pressure of the turbocharger, so that the output constant pressure gas meeting the demand is flexibly controlled according to the demand of the current driving condition. In this way, the stress on both sides of the actuator diaphragm is adjusted, and the actuator diaphragm is controlled to move according to the pressure difference on both sides, so that the opening degree of the turbocharger is adjusted to a target opening degree indicated by the target pressure after pressure, thereby meeting the demand under the current driving condition. Compared with the related art in which the through hole is directly connected with the atmosphere, the stress on the actuator diaphragm is no longer disturbed by the change of the atmospheric pressure caused by the change of the altitude, and therefore the high-altitude driving condition can be considered.

System (200) for one motor (12), comprising: - an engine inlet (23) with an air inlet throttle (22) which is flow-coupled with an engine inlet manifold (24) along an inlet channel (18), and a compressor (90) for charging an inlet air charge received along the inlet channel (18); - a first ejector (206) positioned above the air inlet throttle (22) and controlled by a first valve (208); - a second ejector (80) positioned in a compressor bypass stream and controlled by a second valve (86); - a common actuator (44) configured to simultaneously adjust a position of the first valve (208) and the second valve (86); and - a channel (84) connecting the second ejector (80) to the actuator (44), which is designed to direct the negative pressure generated by the second ejector (80) to the actuator (44); - a ventilation duct (202) that connects the duct (84) upstream of the compressor (90) to the inlet duct (18); and - a ventilation valve (204) positioned in the ventilation duct (202) or at an intersection of the ventilation duct (202) with the channel (84).

An engine system includes a spark-ignited engine having at least one cylinder, and at least one piston to compress an intake charge therein and provide a variable compression ratio. The system includes a pent-roof cylinder head to induce a tumble flow of intake charge. The system includes an air handling system to control air flow through a turbocharger system via at least one actuator within at least one of an intake air throttle, a wastegate, or an exhaust gas recirculation system. The system includes at least one sensor to sense at least one of a temperature or a knock condition, and at least one controller to control at least one of a rate of flow of the intake charge or the at least one actuator based on the at least one of the temperature or the knock condition to satisfy an efficiency target of the engine.

Connecting plate (310) and socket (410) configured to be included in a wastegate actuator mechanism (300) of a wastegate system (200) of a turbocharger (100), wherein the material of the bushing (410) has a higher hardness than the material of the connecting plate (310), wherein the bushing (410) is pressed into an eye (311) of the connecting plate (310), and wherein the connecting plate (310) and the bushing (410) are configured to prevent relative movement of the connecting plate (310) and the bushing (410) in a circumferential direction and / or in a longitudinal direction by exerting pressure on a deformation area (A) of the connecting plate (310) and formed bulges of material (316) of the connecting plate (310).

Diagnostic procedures for a turbocharged internal combustion engine in a vehicle, including: Activating a monitoring device and adjusting an actuator during the operation of an internal combustion engine with a closed-loop turbocharger boost control system by a controller, and providing an indication of deterioration by the controller based on the duration of an actual deviation exceeding a threshold deviation level between an expected change in boost pressure and an actual change in boost pressure over a driving cycle without referencing a command or measurement of a variable geometry turbine (VGT) or wastegate, where the internal combustion engine is operated by the control system with a closed-loop turbocharging control under conditions other than idle conditions, which includes any of the passage of a threshold vehicle running time, reaching a threshold combustion engine temperature and maintaining a threshold intake manifold pressure.

The invention relates to a method for reducing cold-start emissions in a vehicle (10). Control signals are issued to open a wastegate, rotate a turbine (314), and activate a catalyst heater (206) arranged between the turbine (314) and a catalyst (310) in response to a trigger signal. The rotation of the turbine (314) causes recirculated air to flow in a recirculation flow path comprising an exhaust manifold (320), exhaust baffles between the exhaust manifold (320) and the turbine (314), a turbine housing, exhaust baffles between the turbine (314) and the wastegate (306), exhaust baffles between the wastegate (306) and the exhaust manifold (320), and exhaust baffles between the turbine (314) and the catalyst heater (206).Heat from the recirculated air, which is heated by the catalyst heater (206), is transferred to the exhaust manifold (320), the exhaust walls between the exhaust manifold (320) and the turbine (314), the turbine housing, the exhaust walls between the turbine (314) and the wastegate (306), the exhaust walls between the wastegate (306) and the exhaust manifold (320), and the exhaust walls between the turbine (314) and the catalyst heater (206). A seventh control signal is output to a compressor bypass valve actuator (214) to open a compressor bypass valve (308) in response to the trigger signal. The invention also relates to a system (100) for reducing cold-start emissions.

An engine control system, an engine control method, and an engine control program. The engine control system according to the present disclosure is provided with an oil temperature sensor and a wastegate valve control section. The oil temperature sensor detects the temperature of engine oil. The wastegate valve control section controls the opening and closing of a wastegate valve (WGV) based on the temperature of engine oil detected by the oil temperature sensor. More specifically, in the case where the temperature of engine oil detected by the oil temperature sensor is below a predetermined threshold value, the wastegate valve control section controls in such a manner that the wastegate valve (WGV) is opened.

A turbocharger control method and apparatus, a device, and a readable storage medium. The method comprises: acquiring an operating condition corresponding to a vehicle (200); determining a surge line corresponding to a turbocharger (210), the surge line being used for representing a gas flow oscillation phenomenon of gas along the axial direction of a compressor; and when the operating condition and the surge line satisfy a preset relationship, adjusting a first opening angle of a wastegate valve, or adjusting a second opening angle corresponding to a vehicle accelerator pedal (220).

To early activate a catalytic converter in an engine with a turbocharger.SOLUTION: A control device 10 for an engine with a turbocharger includes: an engine 1; an exhaust passage 4 in which exhaust gas from the engine flows; a turbocharger 3 having a turbine wheel 35 rotated by a flow of exhaust gas in the exhaust passage; and a catalytic converter 42 located downstream of the turbocharger. The turbocharger includes: a waste gate valve 38 that fully opens a bypass passage 37 while the engine is performing a warming-up operation of the catalytic converter; and a resistance application mechanism (lock mechanism 7) for applying resistance to rotation of the turbine wheel.SELECTED DRAWING: Figure 4

The present invention relates to a system for controlling a wastegate of a turbocharger of an internal combustion engine, the system comprising: a lever plate adapted to communicate with the wastegate of the turbocharger for controlling the wastegate; a linking arm adapted communicate with an actuator of the system and adapted to releasably connect to the lever plate via a joint defined by a portion of the lever plate and a portion of the linking arm; wherein the joint is dimensioned to connect the linking arm and the lever plate in a first orientation of the linking arm with respect to the lever plate and to disconnect the linking arm and the lever plate in a second orientation of the linking arm with respect to the lever plate.

A double wastegate valve arrangement having improved durability and reduced overall loading in the system, with two wastegate valves movable along a valve longitudinal axis, wherein each of the two wastegate valves has a rotationally symmetrically designed projecting upper side portion configured around the valve longitudinal axis, a valve arm connected to an actuating shaft, and an intermediate plate which is loosely arranged between the valve arm and the wastegate valves, wherein the intermediate plate is pivotable about the valve arm in a direction perpendicularly with respect to the valve longitudinal axis and is supported by rotationally symmetrically designed projecting lower side portions of the intermediate plate on the rotationally symmetrically designed projecting upper side portions of the two wastegate valves.

Systems and methods are provided for mitigating cold start emissions via rotation of a turbocharger turbine. A trigger signal is received from a trigger signal source. A first control signal is issued to a wastegate actuator to open the wastegate in response to the trigger signal. A second control signal is issued to the turbine shaft actuator to rotate a turbine of the turbocharger. Rotation of the turbine causes recirculation air to flow in a recirculation flow path that includes an exhaust manifold, the turbine, an exhaust wall system, and a wastegate. The exhaust wall system includes a turbine housing of the turbine, an exhaust wall disposed between the turbine and the wastegate, and an exhaust wall disposed between the turbine and the catalyst brick. At least a portion of the recirculation flow path is adjacent to one side of the catalyst brick. Heat is transferred from the recirculated air to the exhaust wall system and to the catalyst bricks via one side of the catalyst.

Turbine (30), comprising: a turbine wheel (3) with a plurality of blades (33); a turbine housing (5) which forms an internal turbine wheel receiving chamber (53) for receiving the turbine wheel (3); and a wastegate valve (55) for controlling a flow rate of exhaust gas flowing through a wastegate passage (110) formed inside the turbine housing (5), wherein the wastegate passage (110) is configured to connect a spiral passage (7a) formed inside the turbine housing (5) and a region (160D) upstream of a trailing edge (37) of each of the plurality of blades (33) in the turbine wheel receiving space (53), wherein a connecting section (120) through which the wastegate passage (110) is connected to the turbine wheel receiving space (53) comprises a plurality of connecting holes (121, 122) which are arranged at intervals in a circumferential direction, and wherein each of the plurality of connecting holes (121, 122) is inclined to a radial direction of the turbine wheel (3), such that the respective connecting hole (121, 122) extends downstream in a direction of rotation of the turbine wheel (3) in the direction of a radial inside of the turbine wheel (3).

Wastegate valve device (100) arranged on a bypass channel (110) formed within a turbine housing (5) containing a turbine wheel (3) bypassing a turbine (30) of a turbocharger (1) arranged on an exhaust channel of an engine, comprising: a valve seat surface (113) formed at an outlet (111) of the bypass channel (110); and a wastegate valve body (150) which supports a support arm (120) which is rotatably supported about an axis (AX), and a valve body (130), which is supported by the support arm (120), wherein the valve body (130) is configured to come into and out of contact with the valve seat surface (113) according to a rotation of the support arm (120), wherein the valve seat surface (113) is inclined orthogonal to an axial direction (BPAX) of the bypass channel (110) with respect to a direction of the axis (AX); wherein the bypass channel (110) connects a spiral flow channel (7a) and an exhaust channel (171) for bypassing the turbine wheel (3); and wherein a center of rotation of the valve body (130), as seen from the direction of the axis (AX), is arranged radially outside a center line (Cbp) of the bypass channel (110) and radially outside an outermost end of a spiral flow channel generating section (7) that forms the spiral flow channel (7a).

The invention provides a method and system for calculating the opening and closing angle of a waste gas bypass valve of a vehicle turbocharger and a storage medium, and the method comprises the steps: collecting the feedback voltage of an electronic actuator and the swing angle of a rocker arm of the electronic actuator, and constructing a linear equation between the feedback voltage of the electronic actuator and the swing angle of the rocker arm of the electronic actuator; feedback voltage when the turbocharger works is obtained, the feedback voltage is substituted into the linear equation, and the swing angle of a rocker arm of the electronic actuator during working is obtained through calculation; and the opening and closing angle of the waste gas bypass valve is calculated according to the motion characteristics and the swing angle of the four-bar mechanism. The problem that deviation exists between the actual opening and closing angle of the waste gas bypass valve and the calculated value due to the fact that the opening and closing angle of the waste gas bypass valve is calculated according to the linear relation between the opening and closing angle of the waste gas bypass valve and the swing angle of the rocker arm in an existing mode is solved.

A two-part wastegate valve member assembly comprises a support member and a valve member. The support member defines an aperture. The valve member comprises a central portion extending through the aperture and two opposed end portions disposed on opposite sides of the aperture. Each of the two end portions has dimensions such that the valve member is held captive by the support member. The central portion and two opposed end portions of the valve member are integrally formed. A method for forming the two-part wastegate valve member assembly comprises casting a single manufacturing intermediate and subsequently processing the manufacturing intermediate so as to form the two-part assembly.

The present invention discloses an engine air supply system control method, control device, and engine air supply system, belonging to the field of engine technology. The engine air supply system control method, control device, and engine air supply system of the present invention control the openings of the EGR valve, first wastegate valve, and second wastegate valve using the presence of an ignition advance angle knock correction amount and the opening of the EGR valve as reference conditions. This maximizes engine economy while ensuring engine knock-free operation.

The invention relates to the technical field of internal combustion engines, in particular to a hydrogen internal combustion automobile engine which comprises an air cylinder body, an air cylinder cover and a crank connecting rod mechanism. An exhaust hole is formed in one side of the cylinder body, the cylinder body is cast by adopting a nickel-based high-temperature alloy to form an in-line four-cylinder structure, and a plasma-sprayed ZrO2-Y2O3 composite ceramic layer is arranged on the surface of the cylinder wall; the valve timing mechanism comprises an overhead camshaft and a valve, and is equipped with a continuous variable valve timing system; the hydrogen injection system comprises a high-pressure hydrogen pipe, a multi-stage pressure reduction electromagnetic valve and an injection head, and the injection pressure range of the injection head is 5-35 MPa; the turbocharging system comprises a radial flow type turbine, an air inlet header pipe, an air inlet manifold and an electronic waste gas bypass valve, the nickel-based high-temperature alloy air cylinder body is combined with the plasma spraying ZrO2-Y2O3 composite ceramic layer, the temperature can be resisted to 1100 DEG C, the hydrogen embrittlement rate is reduced by 70%, the design of the hemispherical-pit composite combustion chamber and the circumferential turbulence groove is matched, and the performance of the engine is improved. The lean burn limit is expanded to lambda = 1.3, and the heat efficiency is improved to 45%.

Systems and methods are provided for mitigating cold start emissions in a vehicle including a catalyst heater via rotation of a turbocharger turbine. In response to the trigger signal, a control signal is issued to open the wastegate, rotate the turbine, and turn on a catalyst heater disposed between the turbine and the catalyst. Rotation of the turbine causes recirculation air to flow in a recirculation flow path, the recirculation flow path includes an exhaust manifold, an exhaust wall between the exhaust manifold and the turbine, a turbine housing, an exhaust wall between the turbine and the wastegate, an exhaust wall between the wastegate and the exhaust manifold, and an exhaust wall between the turbine and the catalyst heater. Heat is transferred from the recirculated air heated by the catalyst heater to the exhaust manifold, the exhaust wall between the exhaust manifold and the turbine, the turbine housing, the exhaust wall between the turbine and the wastegate, the exhaust wall between the wastegate and the exhaust manifold, and the exhaust wall between the turbine and the catalyst heater.

The invention belongs to the technical field of turbochargers, particularly relates to an electric control deflation valve of a turbocharger, and aims to solve the problem that an existing marine supercharger cannot realize automatic control and continuous adjustment of supercharging pressure. Comprising a vortex front connecting pipe, an electric control system, a servo motor, a motor adjusting crank, a connecting rod, a universal joint, a linkage crank and a deflation valve. The turbine front connecting pipe is arranged between a diesel engine exhaust pipe and a supercharger, the servo motor is connected with the electric control system and the motor adjusting crank, one end of the connecting rod is connected with the motor adjusting crank through a universal joint, the other end of the connecting rod is connected with the linkage crank through a universal joint, and the linkage crank is connected with the air release valve through a pin key. The electric control system is configured to receive a supercharger rotating speed signal, a supercharging pressure signal and an engine rotating speed signal, and after the signals are compared with a set threshold value, the output strength of the servo motor is controlled so as to drive a transmission assembly composed of the motor adjusting crank, the connecting rod and the linkage crank to adjust the opening angle of the deflation valve.

In a supercharging system, an exhaust passage forms a curve from an upstream portion into which exhaust gas flows from a supercharger or a bypass passage, a curved portion that changes the direction of the exhaust gas flowing into the upstream portion, and a downstream portion that connects the curved portion and an exhaust gas purification catalyst. The wastegate valve has a bulging portion that bulges into the bypass passage when the bypass passage is closed. The wastegate valve is configured so as to swing and open at the outlet of the bypass passage so as to be away from the inner path of the curve toward the downstream. Furthermore, the wastegate valve is configured so as to open within a range of an angle smaller than an angle parallel to the central axis of the upstream portion.

Control signals are issued to open a wastegate, rotate a turbine, and turn on a catalyst heater disposed between the turbine and a catalyst in response to a trigger signal. The rotation of the turbine causes recirculated air flow in a recirculation flow path including an exhaust manifold, exhaust walls between the exhaust manifold and the turbine, a turbine housing, exhaust walls between the turbine and the wastegate, exhaust walls between the wastegate and the exhaust manifold, and exhaust walls between the turbine and the catalyst heater. Heat is transferred from the recirculated air heated by the catalyst heater to the exhaust manifold, the exhaust walls between the exhaust manifold and the turbine, the turbine housing, the exhaust walls between the turbine and the wastegate, the exhaust walls between the wastegate and the exhaust manifold, and the exhaust walls between the turbine and the catalyst heater.

A turbine comprising a wastegate chamber (28): a turbine housing (12) defining a turbine inlet (14), the turbine housing (12) comprising: a wastegate inlet passageway (30) defining a flow path between the turbine inlet (14) and the wastegate chamber (28), wherein the wastegate inlet passageway (30) comprises a turbine port (38) proximal the turbine inlet (14) and a non-circular valve port (36) proximal the wastegate chamber (28), and a raised rim (52) surrounding the non-circular valve port (36) and conformal to the shape of the non-circular valve port (36), wherein the raised rim comprises a first sealing surface (52); and a valve member (42) comprising a second sealing surface (50), wherein the valve member (42) is moveable between a closed position in which the second sealing surface (50) forms a seal with the first sealing surface (54) to prevent fluid flow along the flow path and an open position in which the second scaling surface (50) is spaced apart from the first sealing surface (54) to permit fluid flow along the flow path.

Exhaust gas recirculation (EGR) system (122) in a vehicle (100) comprising: a turbine (116) fluidically connected downstream of an exhaust manifold (200); and an EGR channel (124) comprising: a first port (126) connected to a line directly downstream of the turbine (116), wherein an axis of the first port (126) is arranged at a non-perpendicular angle to an axis of rotation of the turbine (116); and a second port connected to an intake system (106), characterized by the fact that the first connection (126) is positioned vertically above a wastegate outlet and the wastegate (120) is positioned inside the pipeline.

A turbine (10) comprising a wastegate chamber (28) is disclosed. The turbine (10) further comprises a turbine housing (12) that defines a turbine inlet (14). The turbine housing (12) comprises a wastegate assembly (26, 126). The wastegate assembly (26, 126) comprises a wastegate inlet passageway (30, 130) that defines a flow path B between the turbine inlet (14) and the wastegate chamber (28), wherein the wastegate inlet passageway (30, 130) comprises a turbine port (31) adjacent the turbine inlet (14) and a valve port (33, 133) adjacent the wastegate chamber (28). A first sealing surface (36, 136) surrounds the valve port (33, 133). The wastegate assembly (26, 126) further comprises a valve member (34, 134). The valve member (34, 134) comprises a valve plate (38) that defines a second sealing surface (40, 140), and a protrusion (42, 142) that extends from the valve plate (38) to define a protrusion height (54) and a protrusion width (56). The protrusion height (54) is less than half of the protrusion width (56). The valve member (34, 134) is pivotable between a closed position in which the second sealing surface (40, 140) engages the first sealing surface (36, 136) and the protrusion (42, 142) is disposed in the wastegate inlet passageway (30, 130), and an open position in which the second sealing surface (40, 140) is spaced apart from the first sealing surface (36, 136). A turbomachine is also disclosed.

The present disclosure provides "Systems and methods for wastegate diagnosis". Methods and systems are provided for diagnosing a wastegate valve during a vehicle off condition. In one example, the engine can be reverse rotated without fueling, and air flow via an intake manifold can be estimated and compared to a baseline air flow. A stuck open wastegate valve can be indicated based on the comparison between the intake air flow and the baseline air flow.