Abstract: A subframe assembly for a vehicle utilizing straight, parallel extruded longitudinal siderail members. This subframe assembly provides front-end (or rear-end) crash energy absorbance by plastically deforming, crumpling, and bending down to avoid the stackup and occupant cabin intrusion of components, such as the attached engine/motor, engine/motor mounts, steering components, and suspension components. The laterally disposed longitudinal siderail members each provide a straight, substantially uninterrupted lower load path to transfer crash energy from the lower load path crash management system beam and crashboxes or the like to a rear upper load path body in white bracket, and ultimately to the battery frame in the event of a crash, with the siderail members and crashboxes optionally being longitudinally coaxially aligned.

Abstract: A device for controlling an exhaust sound of a vehicle includes a sound tunnel mounted near a muffler and an exhaust pipe so as to transmit exhaust sound to an interior of a vehicle, a sound introduction hole formed in the sound tunnel, and a catalytic assembly mounted in the sound tunnel so as to clog the sound introduction hole, the catalytic assembly functioning to reduce high-frequency noise and to filter exhaust gas, thereby reducing high-frequency noise included in the exhaust sound transmitted to the interior of the vehicle and thereby filtering the exhaust gas so as to prevent introduction of the exhaust gas into the interior of the vehicle.

Abstract: A wall for a heated faceplate includes a base and tines protruding from the base and spaced from each another. The tines are configured to accumulate ice in a manner which promotes shedding of small ice formations to prevent large accumulations of ice father aft on the faceplate.

Abstract: An apparatus and a method are provided for a multiple inlet air box to communicate an airstream through an air filter to an air intake duct of an internal combustion engine of a vehicle. The multiple inlet air box is comprised of a housing that supports the air filter within an interior of the housing. A mount portion within the housing fixedly receives a base of the air filter. Multiple air inlets couple with corresponding air inlet ports of the vehicle to direct the airstream into the multiple inlet air box. A duct directs the airstream from the multiple air inlets to the interior of the housing. A conduit communicates the airstream from an interior of the air filter to the air intake duct of the internal combustion engine.

Abstract: Provided is a thermally insulated insert member and an engine having the thermally insulated insert member. Thermally insulated insert member is disposed in an intake port of a cylinder head of the engine. The thermally insulated insert member includes a guide member that guides a flow of intake air flowing in t he intake port; and a thermally insulative support member with a shape that can be fitted within the intake port. The guide member is formed of a metal and is supported in the intake port via the thermally insulative support member.

Abstract: A manifold (100) of a flowmeter (5) includes a body (120) having a first face (104) with a first orifice (108) and a second orifice (110) and an opposing second face (204) with a third orifice (114) and a fourth orifice (116), wherein the first orifice (108) and third orifice (114) each extend into the body (120) and meet to define a first flow path (170) traversing the body (120), and wherein the second orifice (110) and fourth orifice (116) each extend into the body (120) and meet to define a second flow path (180) traversing the body (120), wherein the third orifice (114) and fourth orifice (116) are each adapted to fluidly communicate with a first and second flow tube (13, 13?) of the flowmeter (5), respectively; and a non-circular bifurcated flow opening (112), said non-circular bifurcated flow opening (112) including a non-circular wall portion (106, 106?) projecting from said first face (104) and surrounding the first orifice (108) and second orifice (110), wherein said non-circular wall portion (106,

Abstract: The invention relates to a damper for reducing pulsations in a gas turbine, which includes an enclosure, a main neck extending from the enclosure, a spacer plate disposed in the enclosure to separate the enclosure into a first cavity and a second cavity and an inner neck with a first end and a second end, extending through the spacer plate to interconnect the first cavity and the second cavity. The first end of the inner neck remains in the first cavity and the second end remains in the second cavity. A flow deflecting member is disposed proximate the second end of the inner neck to deflect a flow passing through the inner neck. With the solution of the present invention, as a damper according to embodiments of the present invention operates, flow field hence damping characteristic in the second cavity constant regardless the adjustment of the spacer plate in the enclosure.

Abstract: A variable air intake apparatus in accordance with the present invention includes an valve configured to open a through hole formed at a duct body when an engine is driven at a high output to change a path of air introduced into the engine depending on an engine RPM, in which a magnet is mounted on any one of the valve and the duct body and a steel member is mounted on the other one thereof to maintain a state in which the valve closes the through hole, and a buffering member is mounted on any one of the valve and the duct body to prevent generation of hitting sound that is generated when the valve hits the duct body.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: Methods and systems are provided for providing vacuum to a brake booster via an aspirator system. In one example, a system may include an aspirator system fluidly coupled with a brake booster with no intervening components located therebetween.

Abstract: An apparatus for detecting the occurrence of snow above a preset level in relation to a combustion device outlet vent and inflow fresh air inlet providing a remote signal and alarm activation response thereto. A sensor arranged to project a distance determinating beam indicates the presence of snow and obstructions to a controller that selectively activates a light and sound alarm. Telecommunication from the integrated alarm provides wireless notification to remote locations that an event has occurred and remedial action is required.

Abstract: Systems and methods are provided for engine systems including a first multiple tap aspirator with a motive inlet coupled to an intake upstream of an air induction system throttle and a mixed flow outlet coupled to an intake manifold, and a second multiple tap aspirator with a motive inlet coupled to the intake upstream of a main throttle and a mixed flow outlet coupled to the intake downstream of the air induction system throttle. During non-boost conditions, intake air may be selectably diverted around a compressor and through the first and/or second aspirator based on desired vacuum generation. During boost conditions, the first and second aspirators may function as compressor bypass valves, and intake air may be selectably directed from downstream of the compressor to upstream of the compressor via the first and/or second aspirator based on a desired compressor bypass flow.

Abstract: An aspirator coupled between an inlet of a compressor and an engine intake manifold may include sonic/supersonic expansion curves for both forward and reverse flow through the aspirator. Suction flow may enter a first entraining port coupling an ambient side of the aspirator with a vacuum source during reverse flow through the aspirator, whereas suction flow may enter a second entraining port coupling a manifold side of the aspirator with the vacuum source, the first entraining port counter sunk relative to a nominal slope of the aspirator to reduce flow disruption caused by the port during forward flow through the aspirator. A radial-flow aspirator shut-off valve arranged in series with the aspirator may be controlled to enable or disable motive flow through the aspirator, and motive flow may enter the valve in a direction perpendicular to a motive flow axis of the aspirator when the valve is open.

Abstract: The present invention provides an intake control device that appropriately restricts the flow of intake air when a valve body is set to a restriction position while the valve body is smoothly operated. The valve body is configured such that it is supported so as to be capable of swinging with respect to a sleeve, and when the valve body is set to the restriction position, a main valve portion of the valve body is lifted upward from a bottom plate, and a secondary valve portion of the valve body is sunk into an accommodating space of the bottom plate. In the accommodating space, a stepped portion that allows outward displacement from an inner surface of the sleeve is formed, and a seal portion that is brought closer to the stepped portion when the valve body is set to the restriction position is formed in the secondary valve portion.

Abstract: Systems and methods are provided for engine systems including a first multiple tap aspirator with a motive inlet coupled to an intake upstream of an air induction system throttle and a mixed flow outlet coupled to an intake manifold, and a second multiple tap aspirator with a motive inlet coupled to the intake upstream of a main throttle and a mixed flow outlet coupled to the intake downstream of the air induction system throttle. During non-boost conditions, intake air may be selectably diverted around a compressor and through the first and/or second aspirator based on desired vacuum generation. During boost conditions, the first and second aspirators may function as compressor bypass valves, and intake air may be selectably directed from downstream of the compressor to upstream of the compressor via the first and/or second aspirator based on a desired compressor bypass flow.

Abstract: Methods and systems are provided for a parallel arrangement of at least two aspirators bypassing an intake compressor in an engine system, the aspirator arrangement including an aspirator shut-off valve arranged in series with each aspirator. The aspirator shut-off valves may be controlled based on engine vacuum needs as well as based on intake manifold pressure, during non-boost conditions, and compressor surge, during boost conditions. For example, during boost conditions, the aspirator shut-off valves may be controlled to enable a selectable discrete compressor recirculation flow rate, whereas during non-boost conditions the aspirator shut-off valves may be controlled to enable a selectable, discrete level of vacuum generation for use by various engine vacuum consumers.

Abstract: An intake control system for a multi-cylinder combustion engine with control valves positioned within intake passageways that can vary the cross-sectional area of the intake runners to increase air intake velocity at low engine speeds. The control system includes an inner frame that can be inserted into a lower manifold after manufacture. The inner frame includes a plurality of flapper valves that are actuated by a four-bar link design, which is driven by a hypoid gear-set. The control system controls an internal DC electric motor that actuates a worm-drive gear-set, which in turn drives the hypoid gear-set to either engage or retract the flapper valves within the intake passageways.

Abstract: An intake system for an internal combustion engine, having a structure in which blow-by oil and/or fuel entering into an air cleaner case can be discharged to the outside of the air cleaner case. The intake system for an internal combustion engine is provided in which air is sucked from a clean air chamber in the air cleaner case into a throttle body provided with a throttle valve through a funnel while defining an airflow passage. Concurrently, fuel is sprayed from an injector, thereby feeding the fuel-air mixture into an intake port. A bypass passage different from the airflow passage is provided between the clean air chamber in the air cleaner case and the throttle body. The bypass passage is so structured that a passage inlet thereof on the clean air chamber side opens at an inner wall surface of the air cleaner case.

Abstract: An air intake system for an internal combustion engine has a valve body that can open/close a passage cross section of a part of an air intake passage; a rotation shaft that extends to both sides of the valve body and supports rotation of the valve body; a valve accommodating recess that is formed on an inner wall surface of the air intake passage and accommodates therein the valve body; and a protruding line that is formed on an outer peripheral side surface of the valve body, which faces the valve accommodating recess, and extends along a shaft direction of the rotation shaft. The air intake system further has a communication passage that directly connects the valve accommodating recess and an intake port of the internal combustion engine.

Abstract: Methods and systems are provided for a parallel arrangement of at least two valved aspirators, with a high pressure source such as an intake throttle inlet coupled to a motive inlet of the arrangement and a low pressure sink such as an intake throttle outlet coupled to a mixed flow outlet of the arrangement. Intake throttle position and respective valves arranged in series with each aspirator of the arrangement are controlled based on intake manifold pressure and/or a desired engine air flow rate, for example such that a combined motive flow rate through the arrangement increases as intake manifold pressure increases. An intake throttle with a fully closed default position may be used in conjunction with the arrangement; during a fault condition where the intake throttle is fully closed, the valves of the arrangement may be controlled to achieve a controllable engine air flow rate during the fault condition.

Abstract: In accordance with exemplary embodiments, a variable air intake system and method is provided for a vehicle. The system comprises an engine a controller coupled to the engine. The controller also couples to and controls an air intake system including a first air inlet port and a second air inlet port having a valve operable to move between a closed position and an open position responsive to the controller to provide air to the engine via a filter. A sensor is disposed between the filter and the engine to communicate with the controller for controlling the valve. The method comprises determining engine speed and air flow for an engine of a vehicle and comparing via the engine speed and air flow to a respective high threshold and low threshold. A valve within a second (controlled) air inlet port is opened when the engine speed and air flow each exceed the respective high threshold and closed when the engine speed and air flow each are below the respective low threshold.

Abstract: In an intake air flow control valve device a flange formed in a housing of the intake air flow control valve device is bolted to a cylinder head via a first gasket and a second gasket along opening outer peripheries of a first intake air passage and a second intake air passage, which are opened to a mount surface of the flange between the flange and a mount surface of the cylinder head.

Abstract: An intake system mounted to a vehicle controls an opening angle of a variable flap according to an RPM of an engine, an intake pressure, and an opening angle of a variable flap to optimize performance in various operation regions by detecting engine RPM and an intake air pressure, and determining an operation region based on the RPM of the engine; applying the intake pressure to determine a target amount of air and an opening angle of a variable flap for an operation region; driving an actuator to adjust an opening angle of the variable flap to a target opening angle; and analyzing an operation position of the actuator to detect an opening angle of the variable flap, and, when the target opening angle is not followed, correcting a drive of the actuator such that an opening angle of the variable flap follows the target opening angle.

Abstract: An air intake system for an internal combustion engine has a valve body that can open/close a passage cross section of a part of an air intake passage; a rotation shaft that extends to both sides of the valve body and supports rotation of the valve body; a valve accommodating recess that is formed on an inner wall surface of the air intake passage and accommodates therein the valve body; and a protruding line that is formed on an outer peripheral side surface of the valve body, which faces the valve accommodating recess, and extends along a shaft direction of the rotation shaft. The air intake system further has a communication passage that directly connects the valve accommodating recess and an intake port of the internal combustion engine.

Abstract: In order to provide a small air-intake apparatus for an internal combustion engine, which can satisfactorily control an air flow and can reduce energy loss in a rotary valve, the air-intake apparatus includes a surge tank; a first air-intake passage communicating with the surge tank; a second air-intake passage communicating with the surge tank; a casing including a first port connected to the first air-intake passage, a second port connected to the second air-intake passage, and an outlet port connected to an air-intake portion of the internal combustion engine; a rotary valve including a rotor housed in a valve casing portion of the casing to be rotatable about a rotational axis, the rotary valve being configured to control air intake directed to the air-intake portion by rotation of the rotor; and a first seal for sealing between the rotor and a surface of the valve casing portion facing the rotor with at least either one of the first port, second port and outlet port being closed.

Abstract: Methods and apparatuses are provided for an air inlet duct of an internal combustion engine. The air inlet duct includes a tubular housing. An inner wall has a plurality of perforations. The inner wall is disposed within the tubular housing such that the tubular housing includes at least two flow passages. A valve set is associated with a first flow passage of the at least two flow passages. The valve set selectively controls airflow through the first flow passage such that the first flow passage functions in a least one of a pass-through mode and a tuning mode.

Abstract: An intake pipe structure for an internal combustion engine is provided. The intake pipe structure includes an air flow meter arranged in an intake pipe and a pair of flow regulating plates. The air flow meter has an entrance and exits. The flow regulating plates are located at positions separated from the air flow meter and extend in a direction of flow of intake air to cover the exits of the air flow meter from opposite sides.

Abstract: An air intake duct (54) for fluid connecting between an air intake control valve unit (52) and a supercharger (60) includes a duct inlet (56) fluid connected with an outlet port (52b) of the air intake control valve (52) and oriented in a first direction (D1), a duct outlet (58) fluid connected with a suction port (60a) of the supercharger (60) and oriented in a second direction (D2) substantially perpendicular to the first direction (D1), and a duct body (74) for defining an air intake passage (78) extending from the duct inlet (56) to the duct outlet (58). The duct body (74) has a portion confronting the duct outlet (58), which is formed with a guide projection (80) that protrudes towards the duct outlet (58).

Abstract: A mounting device can mount an intake manifold to an engine and includes a bending moment applying device applying a bending moment to the intake manifold as the intake manifold is mounted to the engine.

Abstract: An internal combustion engine includes an intake passage structure. The engine is configured such that a cylinder head is formed integrally with an intake manifold portion. A cylinder central axis is oriented parallel to an extending direction of an intake passage, when viewed in a side view. An injector is arranged such that it does not interfere with peripheral components, including the intake passage and a throttle body. The injector is disposed in the intake manifold portion such that a leading end thereof is oriented towards the intake valve of the cylinder head. The intake passage on the upstream side of an injector attachment position is offset from the injector in a width-direction of the internal combustion engine.

Abstract: An intake manifold assembly is disclosed that utilizes a barrel valve apparatus comprised of segments and connectors. The barrel valve apparatus and its housing component can be tapered and flexible. A protrusion such as a draft can be used to seal the performance of the barrel valve apparatus without a seal. Openings in the barrel valve apparatus can possess an integrated bellmouth shape.

Abstract: An air intake device for an internal combustion engine includes an air intake path, a throttle valve, and a first partition plate. The throttle valve is provided in the air intake path and includes a valve shaft and a valve body. The valve body is connected to the valve shaft to open and close the air intake path and has a first end and a second end. The first partition plate is disposed approximately parallel to a flow direction of intake air and includes opposite ends connected to a first inner wall surface of the air intake path closer to the first end than the second end. The first partition plate has a substantially curved convex shape protruding radially inward of the air intake path. The first partition plate is located downstream of the first end of the valve body.

Abstract: To simplify the attachment of a cover member, an air intake duct 10 includes a duct body 12 having an air flow passage 14 communicating from an inlet port 12a to an outlet port 12b and a vent hole 28 communicating from the air flow passage 14 to the outside, an air permeable cover member 32, and a holding member 34 secured to extend along an outer inner circumferential surface or an inner circumferential surface of the duct body 12 and to hold a portion of the cover member 32 covering the vent hole at a location different from the vent hole 28. The holding member 34 is detachably attached to the duct body 12.

Abstract: A variable intake device of an engine may include an auxiliary intake duct that may be disposed with one end thereof inserted inside an air cleaner and sucks air, and a magnetic variable valve that may be disposed at the one end of the auxiliary intake duct positioned inside the air cleaner to selectively open or close the auxiliary intake duct so that as intake negative pressure increases, an open angle of the magnetic variable valve increases.

Abstract: The present invention provides a tunable engine manifold which employs sliders to form one wall of the inlet runners. The sliders can be moved to alter the cross sectional area of the runners as desired. Seals on the sliders provide an efficient means to seal the runners to prevent undesired leaks within runners and, while not required by the present invention, the overmolding of the seals onto the sliders provides a cost effective and mechanically effective manner of providing the desired seals between the inlet runners and the sliders. The tunable engine manifold can be an inlet or an exhaust manifold and can provide a crossover between the banks of inlet runners, or between individual runners, to control resonance in the manifold.

Abstract: An air intake device for an engine includes a duct having therein a first air flow passage, a housing having therein a second air flow passage, a rotary valve having a valve plate. A block of the housing, which conducts intake air to an intake port of a cylinder head, has a circular opposed surface that follows a shape of a curved surface portion of the valve plate. Moreover, the block of the housing has a protrusion that protrudes toward an upstream side of the second air flow passage in an air flow direction so as to contact a duct protrusion of the duct. Therefore, a localized flow of the intake air, which has flowed into the second air flow passage from an opening of the first air flow passage, can be restrained from spreading, and a flow rate of the localized flow can be restrained from slowing down.

Abstract: An intake system mounted to a vehicle controls an opening angle of a variable flap according to an RPM of an engine, an intake pressure, and an opening angle of a variable flap to optimize performance in various operation regions by detecting engine RPM and an intake air pressure, and determining an operation region based on the RPM of the engine; applying the intake pressure to determine a target amount of air and an opening angle of a variable flap for an operation region; driving an actuator to adjust an opening angle of the variable flap to a target opening angle; and analyzing an operation position of the actuator to detect an opening angle of the variable flap, and, when the target opening angle is not followed, correcting a drive of the actuator such that an opening angle of the variable flap follows the target opening angle.

Abstract: A variable intake system for a vehicle which controls air flow amount flowing into each combustion chamber according to rotation speed of an engine may include an air cleaner main body connected with a main duct and an auxiliary duct through which air flows, a valve housing which may be disposed within the air cleaner main body and communicated with the auxiliary duct, a valve assembly disposed to the valve housing and controlling an opening amount of the valve housing, an actuator mounted to the valve housing and coupled to the valve assembly to operate the valve assembly, and a controller controlling operation of the actuator, wherein the actuator may be a linear motor including a motor shaft which realizes linear motion according to supplying current to a coil of the actuator.

Abstract: An air intake device for an internal combustion engine includes an air intake path, a throttle valve, and a first partition plate. The throttle valve is provided in the air intake path and includes a valve shaft and a valve body. The valve body is connected to the valve shaft to open and close the air intake path and has a first end and a second end. The first partition plate is disposed approximately parallel to a flow direction of intake air and includes opposite ends connected to a first inner wall surface of the air intake path closer to the first end than the second end. The first partition plate has a substantially curved convex shape protruding radially inward of the air intake path. The first partition plate is located downstream of the first end of the valve body.

Abstract: An attenuator for the air inlet tract of an internal combustion engine comprises an unobstructed tube (4) having a surrounding enclosure (9) divided into a primary chamber (11) in fluid communication with the inlet tube, and a secondary chamber (12) in fluid communication with the primary chamber. Two secondary chambers (12, 13) may be provided. The arrangement can be tuned to attenuate a wide range of frequencies.

Abstract: A subassembly for a valve device for controlling air flow in an intake manifold. The subassembly includes a cartridge including a plurality of compartments having partially open opposing sidewalls, wherein adjacent partially open side walls of adjacent compartments are spaced apart a distance to define a groove therebetween, a plurality of partitions each having a through-hole therein and being disposed in the grooves defined between adjacent partially open side walls of the adjacent compartments. The partitions complete the formation of the opposing side walls of the adjacent compartments and each compartment is alignable with an air intake runner of an intake manifold.

Abstract: In accordance with exemplary embodiments, a variable air intake system and method is provided for a vehicle. The system comprises an engine a controller coupled to the engine. The controller also couples to and controls an air intake system including a first air inlet port and a second air inlet port having a valve operable to move between a closed position and an open position responsive to the controller to provide air to the engine via a filter. A sensor is disposed between the filter and the engine to communicate with the controller for controlling the valve. The method comprises determining engine speed and air flow for an engine of a vehicle and comparing via the engine speed and air flow to a respective high threshold and low threshold. A valve within a second (controlled) air inlet port is opened when the engine speed and air flow each exceed the respective high threshold and closed when the engine speed and air flow each are below the respective low threshold.

Abstract: The present disclosure relates to a resonator, and more particularly, to a resonator installed at the rear of a turbo charger of a vehicle and combined with a Helmholtz resonator and a groove type resonator to attenuate both high-frequency noise and low-frequency noise. The resonator installed at the rear of a turbo charger of a vehicle to attenuate an inhaling noise includes: at least one Helmholtz resonator having a cavity in an air introduction path extending into a duct so that the cavity is formed in a radial direction of the duct; and at least one groove type resonator provided at the rear of the Helmholtz resonator and protruding outwards in the radial direction of the duct.

Abstract: A resonator is disclosed which includes: a sleeve insert and an outer duct sealingly coupled to the sleeve insert. The sleeve insert has a wall with a first aperture in the wall at a first axial distance, a second aperture in the wall at a second axial distance, and a rib extending radially outwardly with the rib located between the first and second apertures. The outer duct sealingly couples to the sleeve insert proximate first and second ends of the inner sleeve and at the rib. The sleeve insert and the outer duct are formed of plastic materials which are coupled by welding or via o-rings placed on the sleeve insert. Cavities, in the vicinity of the apertures, are formed in the outer duct. The cavities, which are fluidly coupled to the sleeve insert via the apertures, attenuate noise.

Abstract: An intake system for an internal combustion engine includes a control unit that adjusts the opening amount of a TCV having a valve body and a valve shaft within a valve opening amount range between first and second opening amounts, and first and second rotation restriction portions that prevent the valve body from moving beyond first and second opening amount positions, respectively, by contacting the valve shaft. The valve body is divided into a short valve portion and a long valve portion located upstream of the short valve portion by the valve shaft. The length from the valve shaft to the tip is greater in the long valve portion than in the short valve portion. When the valve body is in the first or second opening position, the valve shaft is pushed against the first or second rotation restriction portion by intake air flowing through an intake pipe.

Abstract: An intake system for an internal combustion engine, having a structure in which blow-by oil and/or fuel entering into an air cleaner case can be discharged to the outside of the air cleaner case. The intake system for an internal combustion engine is provided in which air is sucked from a clean air chamber in the air cleaner case into a throttle body provided with a throttle valve through a funnel while defining an airflow passage. Concurrently, fuel is sprayed from an injector, thereby feeding the fuel-air mixture into an intake port. A bypass passage different from the airflow passage is provided between the clean air chamber in the air cleaner case and the throttle body. The bypass passage is so structured that a passage inlet thereof on the clean air chamber side opens at an inner wall surface of the air cleaner case.

Abstract: An intake manifold includes a manifold case having an intake passage. A valve is arranged in the intake passage. The valve is rotatable about its proximal end so as to partly close the intake passage. When the valve partly closes the intake passage, a clearance is formed between a wall surface defining the intake passage and a distal end of the valve. The clearance connects a section of the intake passage upstream of the valve and a section of the intake passage downstream of the valve to each other. When the valve partly closes the intake passage, each of side edges of the valve comes in surface-to-surface contact with a portion of the intake passage wall surface that faces the side edge of the valve, thereby airtightly sealing the spaces between the side edges of the valve and the wall surface of the intake passage.

Abstract: The invention relates to a method for operating at least one rotating closure element in a flow channel; alternately opening and blocking the flow channel relative to a reference variable and with an adjustable phase position; flowing through a cross-section; changing a phase position; and utilizing at least one of a flow force and a flow torque to act on the closure element for at least one of temporarily accelerating and temporarily decelerating the closure element.