DE10327603A1 - Media mass control element for combustion engine has blocking element with rotary drive it; through opening periodically connects/disconnects inlet, outlet openings to produce pulsed charging function - Google Patents

Abstract

The device has a housing with at least one inlet opening, at least one outlet opening and at least one blocking element rotatably mounted in the housing and with at least one through opening (4). The inlet, outlet and through openings align in at least one position of the blocking element and the connection between the inlet and outlet openings is completely closed in at least one other position. The blocking element has a drive for rotating it, whereby the through opening periodically connects and disconnects the inlet and outlet openings to produce a pulsed charging function. An independent claim is also included for the following: (a) a suction arrangement, especially an air induction system for an internal combustion engine.

Description

The The present invention relates to media mass controls for controlling of flow masses of fluid media. The invention relates in particular systems for the mass flow control of gaseous or liquid media. In particular, the present invention relates to air mass controllers in internal combustion engines (internal combustion engines) for mobile and stationary applications.

The The present invention further relates to pulse control switching devices between the intake system and the cylinder head.

Ball valves for Control flow masses of gaseous or liquid media have been known for a long time. In internal combustion engines of motor vehicles are currently common Valve systems such as throttle valves used, the one continuous axis for controlling the flaps or other control elements exhibit. These axes have several disadvantages. The flaps form even in the open Position a flow resistance. The axes cause a so-called "wave shadow" and thus reduce that maximum possible Flow volume, disturb the Media stream and lead to turbulences and other, often undesirable physical effects. About that have to go out the axes of the flaps over Seals are sealed, so that no impermissibly large leakage or Nebenluftraten which have a negative impact on tax quality.

Farther allow these conventional throttle no small switching times in the range of milliseconds, like them for impulse suction devices for internal combustion engines needed with a pulse control unit, the air charging pulses produce.

One advanced approach to the development of throttle valves with Switching times of a few milliseconds, for example, in the Article "Impulse charging and load control of reciprocating engines by an air cycle valve "in the engine Magazine MTZ number 12/2001, year 82 described. This in described in this article experimental air cycle valve to produce short bursts, however, show weaknesses in terms of durability and reliability and do not allow the experimental setup described for continuous use appear. The structure favored in the article may seem be controllable arbitrarily, wherein the switching time or the time which needed will be to open the flap or to close not lower than 1.8 ms. This air mass clock valve (abbreviated in the following - LTV) works on an actuator principle, with a mechanical Spring biased air mass control flap by the operation of Electromagnet triggered becomes. So after a mechanical / electromagnetic system. By this LTV will be over an air charge gain higher Motor torques or higher Motor power achieved. The charge pulses are during the Ansaugvorganges in a crank angle range between z. B. 180 ° and 360 ° or within other crank angle during the suction process needed, to achieve an increase in performance.

At first was a two-time switching (two charge pulses, one long and one short impulse) aspired in the air intake, wherein only after opening the intake air valve, the fresh air is supplied via short pulses. The boost pressure increases through the LTV, considerably. Overall, a significant increase of air consumption, by up to 13%, at a speed of 1000 rpm, reached.

The Air Valve (LTV) was soon after reaching the crank angle of 135 °, open and then closed again before reaching the crank angle of 225 °. The LTV supports So far, the engine power in a speed range of> 500 to about 5000 rev / min. At a switching time for a pulse of 5 ms, the charge gain has already dropped to "0." It seems to be that way as possible many impulses over bring the best results to the entire rev range.

There however, electromagnetic systems, minimum response times between 0.9 ms and 1.3 ms are likely this type of control, limits set, even if one preloaded with a spring-mass system. Switching times between maximum 1.8 ms to 2.1 ms can realized with such mechanical-electromagnetic systems be like the graphics on bouncing or deflection movements of the valve flap shows.

at z. B. 1000 U / min and 30 ms intake time of 180 ° to 360 ° crank angle would be with 2 ms switching time, at low engine speeds, maximum 15 impulses possible and at high engine speeds at least 2 pulses. With increasing Speed, the intake time becomes shorter, whereby in the upper speed range temporally, fewer charge pulses possible are. However, mechanical single-stroke systems like the LTV also have other physical limits. Due to the extreme acceleration the controls, eg. intercepted and muted Need to become.

At 2 ms switching time and a mean vehicle or engine life of z. B. 5000 h, the valve would clock 12 × 10 ⁹ times.

With the progressive development of internal combustion engines, in particular Internal combustion engines for Motor vehicles, find continuous improvements hereby related systems and devices. One of the main goals engine development in the automotive sector is the optimization the combustion process or a reduction in fuel consumption, which goes hand in hand with optimization. One of the relevant devices the internal combustion engine is the air suction and the air mass controls used therein between the intake air supply and the cylinder head.

Of the Invention is based on the object, a media mass control to provide that makes it possible a pulsed or pulsed air flow for the introduction into the combustion chambers to produce an internal combustion engine.

Of the Invention is further based on the object, a media mass control to provide that can be easily and inexpensively manufactured.

Of the Invention is above It is also an object of the present invention to provide a mass media control with a to provide a particularly narrow design.

Of the Invention is further based on the object, a flow-optimized Media masses control provide.

Of the Invention is above It is also an object of the invention to provide a mass media control which closes particularly tight when closed.

Of the Invention is above It is also an object of the invention to provide a mass media control the different tasks like idle speed control, normal Combine throttling and pulse charging in as few components as possible can.

Of the Invention is finally the object of providing an intake device for internal combustion engines, which utilizes the advantages of a media mass control element according to the invention.

These Tasks are characterized by the features of independent claims 1 and 13 solved. advantageous embodiments The invention in the form of training and further education are by the dependent claims described.

According to one A first aspect of the present invention is a media mass control element. with a housing and a shut-off element. The housing has at least an entrance opening and at least one exit port on. The shut-off is rotatably mounted in the housing, and has at least one passage opening on. The shut-off has a, through a passage in defined the housing Rotation axis around which it can be rotated mechanically. In at least a position of the shutoff element are substantially aligned entrance opening and the through hole and the through hole and the exit port. In at least one other position of the shutoff is the Connection between inlet and outlet completely closed.

The Media mass control is characterized in that the Shut-off one, with a drive, for example, a drive shaft, a drive flange, a drive gear or a chain drive or pulley is provided. By the drive, the shut-off be set in rotation. In the rotation is through the at least a passage opening the entrance opening and the exit port Periodically interconnected and closed. By the periodic opening and Shut down can be a pulse-charging function to be provided.

The Media mass control can be between the suction system and the Cylinder head to be attached. In a similar design it is also possible, the mass media control between Install cylinder head and exhaust system. If the pulses are positive affect the suction process, then this is also at the ejection process possible, although this has not been explicitly explored so far. A corresponding High-speed valve is also in your channel between the intake pipes and the exhaust pipes or even in the area of a turbocharger itself, possible.

ever according to the speed of the motor is a longer (up to 30 ms) or shorter (to to about 3 ms) time for the impulse charge available. In this air intake or charging time as many pulses are delivered be, that is, the air mass pulsed in the combustion chamber flow.

The double pulses favored in the above article are tuned to the resonant space of the aspirating piston (that is, the volume behind the obturator). The present invention also allows pulses, for example, to the air supply (ie the space before the shut-off lement).

When technically useful and economically still feasible, have become Pulse charge shut-off speeds from at least 15,000 rpm to about 60,000 rpm at engine speeds between 5000rpm and 8000rpm, as economical and meaningful exposed. At 60,000 rpm, at least two pulses are included the relevant engine speeds possible (60,000 rpm = 1000 U / sec = 1 U / ms = 2 pulses). For high performance engines For example, in motorsport with engine speeds of up to 10,000 rpm can Speeds of the pulse charging units between 600,000 rpm and 180,000 RPM required.

In this impulse charging time can between 1 (1 = minimum = 1 × ball revolution = 2 pulses) and a maximum of 60 charging pulses are delivered. In exhaust turbochargers currently speeds between 200,000 and 300,000 rpm in Axial or tangential flow realized. For the shut-off elements which have a substantially transverse flow are much lower speeds sufficient and useful, since the Air pulse with its speed should be able to cross the ball.

To In our previous concept elaborations, we believe that fast rotating balls or rotary valves are particularly good suitable for extremely short charge pulses in a period of approx. 0.05 ms to a maximum of 1.0 ms.

continuous rotating balls or rotary valves, have some compared to clocked flaps Advantages, such. B. a long life, no aerodynamic interference, in the fast-flowing Air masses of continuous waves arise, a very high installation tolerance, easy assembly and disassembly, a little effort for matching, a very high tightness and thus low air leakage rates in the closed Status.

The Intake system may preferably be tuned to a length at each of the fundamental to the (half) speed of the engine and one of the overtones to the number of pulses or to the (double) speed of the Be shut off.

A per intake stroke (petrol, diesel, Wankel, star, series, V, W, X-motors, or the pre-compression in 2-stroke engine) can be a direct coupling allow between the speed of the shut-off element and the crankshaft speed. When using multi-hole shut-off could be a Phase shift between the single pulses and the valve opening one Throttle or idle control represent.

In another embodiment is the drive as a housed in the housing actuator executed to set the shut-off element in rotation. Because the actuator in a basic version, the shut-off element basically only in one rotation should be able to offset a conventional Rotary motor can be used. In this case, the actuator, for example be designed as a small hydraulic motor or a small turbine. The actuator may also be implemented as a transmission that is from the crankshaft or the camshaft is driven. It is clear, of course that the actuator also, as an electric motor are running can. It is basically irrelevant, whether the electric motor to a certain fixed speed is tuned or whether the electric motor depending on the current speed the internal combustion engine is controlled or regulated. The shut-off element can also be implemented by means of a stepper motor (with or without reduction) become. This allows the shut-off not just to any Speed but also to any phase in terms of the Current position of the intake valve or the crankshaft or camshaft to be brought. For example, with such a stepping motor the shut-off can be placed in any position, thus could the non-rotating shut-off also used as a throttle become. If the position of the shutoff element are chosen arbitrarily can, the media mass control can also idle speed control of the internal combustion engine. If the position of the shut-off element chosen arbitrarily can be the shut off element of the mass media control the Close the intake path completely and thus safely stop the internal combustion engine without the danger of "drifting over". If the positions of the shut-off elements in multi-cylinder engines for each Cylinders can be controlled individually, the shut-off of the individual media mass controls completely close the suction path and individual cylinders in the Part load operation switch off individually. If the positions of the shut-off elements at Multi-cylinder engines for Each cylinder can be controlled individually, the individual shut-off elements the media mass controls are individually accelerated to the transition the shut-off elements substantially resting in throttle operation individually Cylinder-by-cylinder to accelerate to the impulse charging speed without the risk of a temporary drop in performance.

• – Die Leerlauf-Luftmassen-Steuerung,
• – Die Leistungs-Luftmassen-Steuerung (Drosselklappen-Funktion), und Die Impuls-Lade-Funktion.

In a particularly progressive solution, a shut-off z. B. a ball or a roller three functions in the control bar between the intake and cylinder head take over men.

• - The idle air mass control,
• - The power air mass control (throttle function), and the impulse charging function.

at the idle air control- the ball is only slightly opened at the combustion air mass control (Throttling), the shut-off is far to fully open and in the pulse charge, the shut-off is from a certain Engine speed (> 500 to 1000 rpm), constantly rotated to generate charge pulses.

The Position of the shut-off is via an angle sensor (z. B. potentiometer, electrical or optical scanning or the like) always available and adjustable. The shut-off element in a switching unit or in a switching strip between the cylinder head and the intake system can over a separate electrical control (eg electric motor), mechanically via drives (Chains, straps etc or over Vacuum (vacuum box)) are moved.

In a further preferred embodiment, the housing has at least one second air mass control element. Two combined shut-off elements result in essentially three different approaches:
First, a combination of similar shut-off elements to assemblies for multi-cylinder or multi-valve engines, so-called safety edges or individual elements that can be arranged.

Secondly a combination of rotatable shut-off elements and conventional ones Throttling systems to an assembly.

thirdly a combination of several rotatable shut-off elements per cylinder or suction shaft to improve the pulse shape or pulse sequence.

The first combination is clearly visible and can for example by the arrangement of similar shut-off elements with each other gripping drives and drives are easily realized. Rotate it the individual shut-off elements at the same speed. Depending on the embodiment can the individual shutoff elements offset according to the crankshaft arranged to be in the case of less or specially shaped charging pulses a correlation of the positions of the intake valves of the shut-off sure. This correlation can vary depending on parameters such as Speed, (charge) air pressure, charging temperature to be changed.

at The second combination was recognized to be a two- or two-in-one multiple split intake air flow, with two z. B. separately controllable Air mass controls possible is to multifunctional air mass controls or bars Develop both the idle air mass control system, as well the power air mass control (i.e., the throttle function) and include the impulse charging function.

So far be for These 3 functions, at least 2 components and in extreme cases even 3 assemblies with seals, fasteners and other attachments, uses.

A such combination can, as a separately controllable air mass control (eg a ball, roller, flap or rotary valve) that is the function the idle actuator and the throttle takes over while the z. B. a second (separately controllable) rotating shut-off in an air duct the required Charge pulses generated.

A Control bar can, depending on the engine design, as a longitudinal variant or as a transverse variant, with the different air mass control elements or only balls only rollers or their combinations, for example with a throttle be executed.

In the first functional case at low speeds (idling speed) is just an air mass control, as far as open, that the required Idle air quantity can be selectively controlled.

In the for the second functional case, an air mass control element so far open, that the operation in larger speed ranges possible above idle mode becomes.

For the third Function case, the second air mass control, for example a ball, from a certain crank angle and from a certain Engine speed, (not less than 500 rpm), as air mass charge pulse control, used.

These multifunctional air mass control bar is located between the Intake system and the cylinder head. This multifunctional air mass control bar can also be integrated directly in the cylinder head or in the intake system become.

The control of the air mass adjustment elements is preferably carried out electrically. Other actuators, such. B. vacuum or mechanical controls z. B. on gears or gears are possible. In this case, each control separately or more controls per cylinder bank can be controlled together. The working angle of the air mass control elements is via angle sensor recorded and forwarded to the engine management in order to optimize the operating performance. All air mass controls are to be closed within fractions of a second to exclude a so-called "self-malfunction", which is also known under the name "Nachdieseln". The closed shut-off elements can also be used as an active part of an immobilizer or commissioning lock.

If Balls, used as shut-off in the air mass control bar this is to be divided symmetrically, bearing, with the shafts and balls insert and both strip parts solvable but firmly connect with each other, where form seals are inserted. Rollers and rotary valves can be inserted laterally into the control bar or the housing, without that a divisible housing (as in the case of balls) is necessary.

Basically there There are 2 types, a multifunctional air mass control and impulse charging unit with two shut-off elements.

Two separate air mass control units, which, over the Intake system introduced air mass, is divided. It takes over one unit is the idle air mass control and at the same time the power air mass control (Throttle function) via an air duct. The second unit takes over the second air duct the Pulse charging function.

Multiple separate air mass control units can be used in particular for z. B. X-valve engine concepts be beneficial to divide the airflow several times and each valve Assign a separate air flow, each of the partial air flows a take over another function can.

In addition, swirling and tumble functions, as well as the EGR (exhaust gas recirculation) function within Integrated control bar between intake and cylinder head become.

thirdly a combination of several rotatable shut-off elements per cylinder or suction chute to improve the pulse shape or pulse sequence. So, in one embodiment the second shut-off element as the gap between the first shut-off and the housing be shaped, and essentially a perforated spherical shell form over a coaxial drive from one side or two different ones Pages can be operated. This can, for example, via a (Planetary) gear or over completely separate Drives a staggered opening and closing of the overall system can be realized. By the overlay two opening periods of the first and second shutoff can then be a double pulse (with two different individual pulses during the Valve opening phase) be implemented easily. This system is particularly suitable for crankshaft-coupled Systems. The system is obviously also very dense, since the closed second shut-off element only one sealing joint is formed, because the first sealing joint between the first shut-off and the second shut-off completely is covered.

These Combination of barriers can also be considered a combination of balls and rollers and / or rotary valves are realized.

In a preferred embodiment media mass control element has the shut-off a substantially rotationally symmetric geometry on. At least the outer shape the shut-off element may, for example, as an at least one-sided flattened, substantially spherical body are executed, wherein at least one Flattening formed substantially perpendicular to the passage opening can be.

The essentially spherical Shut-off element may be formed oblate or lenticular or prolate or Zigan-shaped be or represent in a rotational body formed from cones or truncated cones. The axis of rotation of the shut-off element is always parallel to an axis of symmetry of the shut-off element or the body, the arises during the rotation of the shutoff. The shut-off element can also be designed as a rotary valve.

The Width of an inventive or on two-sided flattened media mass control is barely higher than that of a conventional one Throttle. In the flattened area z. B. potentiometer or other control, sensor and / or control units are housed.

In a further embodiment the shut-off element has essentially a spherical geometry having. That means the or one of the shut-off can be essentially as a ball with at least one breakthrough and at least one Drive and / or storage device describe. A ball shut-off element shows many advantages: The ball does not need a continuous rotation or drive shaft. Which represents an aerodynamic advantage. The ball requires less space than a flap, which has packing advantages brings with it.

A Ball leaves Optimize for plastics and is very good in terms of roundness tolerances exactly produced.

The Ball can be very, especially in a symmetrical arrangement of the through hole well stored and accelerated very strongly.

A rotating ball does not require any mechanical damping.

Of the Rotation angle is over Angle sensors can be determined very precisely. Even high speeds up to over 10,000 Rpm are possible (with small balls) which allows very small pulse switching cycles. Ball shut-off elements can be manufactured with very small air leakage rates.

The above advantages also apply to the above rotation body.

The Ball stop can if there is a symmetrical through hole has to be operated in both directions. A direct drive over one The waves can be done in both directions without any loss of performance.

The relationship the opening time at projectile time is essentially directly proportional to the conditions the diameter of the openings and the ball.

In a further embodiment Parts of the media mass control are optimized for the plastics technology. Standard plastic balls, as z. B. from gas-tight ball valves known are were re the plastic technology systems with as constant as possible wall thicknesses permanently improved. The roundness tolerances of balls have been optimized and the aerodynamics of shut-off elements such as ball segments improved.

to Illustration could one the shut-off in one embodiment as a shut-off of a Ball valve described by recesses on the outer surface of the Ball was provided with a rib structure.

By the rib structure becomes a plastic-compatible version the system as possible constant wall thicknesses strived for with ribs and stringers that over the rib construction ensure a substantially spherical outer contour. A such execution is in metallic embodiments for ball valves, not yet known.

The Absperrelement described here has at each point a substantially same wall thickness, (system possible same wall thicknesses), and avoids the disadvantages such as distortion and inadmissibly high Shrinkage that occurs in a shut-off element made of solid plastic.

The Ribs and stringers make it possible to comply with the outer contour of a sphere without that the mass and the volume of a ball must be present. In order to be possible small wall thickness jumps realized and avoided by the geometry-related stresses.

The Advantages of the ribbed expansion can be illustrated as follows: The mass of the ball is opposite drastically reduced. This is not just the material requirement reduced in production, but also for speeding up the rotation of the shut-off necessary forces. Depending on the given loads can the ribs and stringers arranged closer or farther apart become. The shut-off can be low-distortion by injection molding and low Manufacturing tolerances are produced, whereby a post-processing is unnecessary.

The low mass allows the shut-off, that is, the total time to achieve the operating speed of the shutoff in the Substantially below a period of about 2.0 milliseconds (ms) and in particular essentially in a time range of approx. 0.05 ms to about 1.0 ms.

In a preferred embodiment is the shut-off element in the housing by at least one bearing rotatably mounted.

The Shut-off element can be stored on one or two sides. When Bearings are preferably used ball or roller bearings. But it can also bearings made of sintered material, ceramics or high-temperature-resistant polymer materials be used if the demands on the high speeds and the carrying behavior, met become.

Prefers the shut-off element is rotatable in the housing by two bearings stored. Depending on the version the shut-off to have two stub shafts that in respective, on the housing engaged bearings intervene. Optionally, the case can open the, the execution opposite Side be provided with a stub axle, in an appropriate Bore engages the shut-off. In the simplest version can by a suitable material pairing of housing and shut-off element material be dispensed with a separate storage component.

Bearings or rolling bearings such as ball roller or needle roller bearings come into consideration. The storage of the shutoff brings special benefits. The ribs and the stringer must sen thereby no longer lead the shut-off in the housing, so that the ribs can not get caught on the inlet or outlet port. The bearings can also reduce wear, which is especially important for media mass controls that have high speeds. Thus, the media mass control can be performed with a certain gap between the housing and the shut-off, whereby the forces for operating the media mass control can be further reduced. The storage can be dispensed with all ribs and stringers, which are not necessary for reasons of stability or sealing.

Prefers has the media mass control on circumferential seal, the in the closed state of the shutoff the input and the output port seals. The seal can be on the housing or on the shut-off element to be ordered.

The Shut-off elements get a small circulating on their circumference Elevation with a height from 0.05 mm to a maximum of 0.1 mm, made from materials which are both a Sealing function, as well as a wear and tear function take over.

Preferably be for this, on the shut-off elements molded wear and lubrication elements Polymer materials with MoS, PTFE, graphite or other additives and Fillers used around the wear and to optimize abrasion behavior.

In addition, additives or Fillers used will ensure a certain long-term lubrication.

Should the control or shut-off z. B. ball, at installation or by occurring centrifugal forces slight on the surrounding elevations may be at a "running in" or "retracting" the control bar elements before the engine installation, this supernatant eliminates and ensures long-term durability as well as tightness be put.

To the so-called "retraction", that at Kunststoffsteuerleistenhersteller takes place, the air mass control element, properly on the working lifetime.

In a wide advantageous embodiment of the media mass control includes that the mass media control at least one sensor. The sensor may include a rotation angle sensor, a rotation speed sensor, be an air pressure, air mass, air temperature sensor. The sensor can serve to determine the angular position of the shutoff element. The sensor can also record a property of the medium serve and for example the density, the temperature, the flow velocity or else the composition of the medium or other properties of the medium.

Prefers the shut-off can so to the crankshaft of an internal combustion engine be coupled so that the shut-off proportional to the Movement of the crankshaft moved.

These Coupling can be done mechanically or controlled, for example electrically over an angle sensor on the crankshaft or the camshaft or over a Tapping of ignition pulses.

Prefers can the phase angle between the movement of the shutoff and a harmonic of the movement of the crankshaft controlled or changed become.

According to one Another aspect of the present invention is a suction device provided, in particular, as an air intake device for an internal combustion engine can be used. The aspirator has one, each combustion chamber the engine associated with air intakes in a cylinder head. Furthermore, the suction device on a suction tube, which at a End in one of the air intakes ends and at another end, an air inlet port of a suction plenum connected is. The suction device is by a respective mass media control in each of the intake manifolds, and / or by a media mass control element characterized in that contains at least one rotatable shut-off, the adapted to generate air charging pulses in the air inlets, and that is connected to the intake plenum.

Prefers the media mass controls in the intake manifolds are at least medium Description capable of generating high pressure charging pulses through the air inlets the cylinder head into the combustion chambers of the internal combustion engine can, by the media mass controls or pulse switching units for one be closed (fast).

The generation of high pressure charging pulses by the above-described media mass controller requires high density of the mass media controller. According to a further embodiment, the media mass control element closes in the closed state such that the leak rate of a pulse switching unit very low to none (is in the range of 0m ³ / h).

Further Details of the invention will become apparent with reference to the attached drawings described with reference to schematic representations of exemplary embodiments, in which:

1 FIG. 12 illustrates a block diagram of an electronic implementation of a mass media control system. FIG.

2 to 6 represent different versions of media mass controls and shut-off elements.

7 to 10 illustrate various possible arrangements of media mass controls.

11 to illustrate various possible arrangements of drivable multifunctional air mass control and impulse charging unit with two shut-off elements.

17 represents a media mass control with an integrated electric drive.

18 to 21 represent different intake systems.

Same and similar Devices, units, elements, etc. are shown in the drawings and denoted by the same reference numerals in the description.

1 FIG. 12 illustrates a block diagram of an electronic implementation of the media mass control system. The figure shows a shut-off element 2 , a passage opening 4 , a warehouse 6 of the shutoff element 2 , a seal 8th in a housing 22 , 1 further shows an actuator 10 , an engine control unit 14 passing through wires 12 and 16 a sensor 20 an accelerator pedal 18 connected is.

2A shows a designed for particularly high tightness shutoff a media mass control. 2 B shows a particularly optimized on particularly low mass media mass control.

Both figures represent a perspective exploded views. The media mass control has in this case essentially five components on the housing with an upper housing part 24 and a lower housing part 26 , the shut-off element 30 and the two camps 28 , The housing has an inlet opening and an outlet opening, the z. B. can be connected to an intake system of an internal combustion engine. The housing 24 . 26 can be one or more parts. The design depends essentially on the chosen manufacturing process. The housing also has bearing mounts. The shut-off element 30 has in this embodiment an almost completely spherical shape, which only through the passage opening, the stub shaft, the ribs 36 and the spaces between the ribs 40 (within the manufacturing tolerances) deviates from a sphere. In this embodiment, the shut-off element 30 formed by a tubular portion provided with ribs and a pair of stub shafts. The outer edges of the ends of the tubular portion, and the outer surfaces of the ribs lie substantially on a common spherical surface. The shut-off element 30 gets through the bearings in the housing 24 . 26 rotatably mounted. The shut-off element 30 is in relation to the opening with transverse ribs 36 and longitudinal ribs or stringers 38 provided to reduce the mass that would otherwise have a full ball segment.

This embodiment is a significantly lighter version compared to conventional ball stopcocks. This embodiment also has the advantage of representing a plastic-compatible design, according to the system as constant as possible wall thicknesses with ribs 36 and stringers 38 , via the rib construction ensures a spherical outer contour. This variant comes closest to the already known "ball valves" for gas and liquid media control, and also represents an embodiment which is optimized for plastics technology, as it is hitherto unknown in the case of metallic ball valves The variant described here can be used for conventional ball valves Do not use because the rib construction described would wear the seal that receives the ball quickly.

This wall thickness reduction according to the "system of wall thicknesses as constant as possible" serves to avoid stresses and to increase the efficiency in the production. The shut-off element 30 can be made in one or more parts. Between the ribs 36 and the stringers 38 there are cavities 40 , in the 2A with a sealant 34 are filled up. In 2 B is the sealant 34 only on the ribs 36 and stringer 38 applied to save weight.

The shut-off element 30 has left and right outstanding shaft parts or stub shafts, over which it is possible to rotate the shut-off permanently with a certain number of revolutions. On the stub shaft can also through a bushing and bearing receiver in the housing 24 . 26 , Devices for control and distance measurement are flanged. Between, on the shut-off element 30 outstanding axle sections or stub shafts and the housing 24 . 26 Bearings (sliding or roller bearings) are provided to ensure a permanently smooth rotation of the shut-off element 30 to enable.

In both figures, the structure of the housing 34 . 26 and the shut-off element 30 with the passage opening, the ribs 36 and stringers 38 , the tubular gate 10 , the edge 11 the tubular section, the stub shafts and the bearings clearly.

3 and 4 are sectional views of assembled media mass control of 2 , In the production of a shutoff in a housing inevitably forms with undercuts. In order to be able to produce these media mass control elements, either the spherical segment itself or the housing must be divided, preferably center-symmetrically, or the spherical segment must be molded into the housing by the known melt-core technology. In this case, the seal and the bearing elements (plain bearings or other bearings and bearing seals) must already be applied to the ball segment. The ball segment with the seals and mounting parts is formed in a low-melting metal alloy and molded around the housing body (plastic technology) or melted or poured (metal technology).

The two sections show different ways to attach the seals to the shut-off elements in section. In 3 are the ribs 36 Stringer 38 , Seals 34 , Upper 24 and sub- 26 Case halves clearly visible. The one with the reference number 82 marked arrow indicates the direction of rotation of the shutoff. The reference number 90 shows the height of the pulse charging element with non-rotating ball. The reference number 84 denotes the diameter of the shut-off element. The reference number 86 denotes the diameter or a dimension of a passage opening. The reference number 88 indicates the diameter or dimension of the inlet opening of the housing. By a suitable choice of these dimensions different pulse shapes can be implemented.

5 shows a shut-off that is tuned to a relatively short pulse per revolution. The intake flange and the valve flange (not shown) or the inlet opening 70 and the exit opening 72 are offset so that the passage is only opened in an angular range. The passage opening 4 connect the inlet opening 70 and the exit opening 72 only in an angular range during one revolution. The shut-off element 50 represents a spherical variant of a rotary valve. If several passages with different diameters are integrated in the ball, any pulse periods can be generated.

6 show a media mass control element or a pulse charging element, which is designed for a particularly good controllability of the media stream.

This embodiment differs from that in which in 1 and 2 Described in that in the air outlet side of the passage of the shut-off a part of the shut-off element is recessed, so that the aerodynamics on the outlet side, not disturbed by component segments in the Luftauslaßstrom 48 protrude.

If the shut-off element or the air mass control edge in the air inlet side 46 , over the centrally arranged storage area 6 is rotated at a substantially constant angular velocity to the air mass flow 46 . 48 In the case of a conventional ball valve, both the outlet side and the inlet side interfere with the air flow. This fluidic disadvantage is inventively eliminated by one side 44 of the shutoff element 2 is executed as a segmental dome.

This shut-off is only on the bearings 6 and the partial ribs 38 or stringer 36 , guided. The sealing takes place via elastomers at the air mass control edge in the air inlet area 46 , However, the seal can be circumferential on the front control edge 42 and the ribs 36 and stringers 38 to be available.

By this embodiment it is ensured that the adjusting forces remain as small as possible. The Elastomer seal is selected by the Shore hardness so that a good sealing effect is ensured, compensated tolerances of the ball segment can be and the necessary adjustment forces for the required rotational movements, small stay.

For reasons of package, the media mass control element can be laterally flattened, but additionally shows a recess 22 in the media flow in the outlet direction 21 , as an essential differentiator.

The shut-off element is in the two-part variant, in the two outer shells 24 and 26 of the housing. The shut-off element is via plain bearings 6 or other types of bearings within the two outer shells 24 and 26 stored.

6 shows an exploded perspective view of a media mass control element, with a fluidically optimized shut-off with an elongated cross-section of the passage opening 22 ,

At the shut-off element is the elongated cross-section 44 the passage opening 6 (especially in the outlet direction) of the media flow to recognize particularly well. It is also the tubular section, an axle or stub shaft, stringer 36 and partial ribs 38 to recognize. After half a rotation, the elongated cross section would be 44 the passage opening 6 in the inlet direction 46 of the media stream.

The shut-off elements shown here can be connected to, with 42 designated edges of the tubular portion have a seal, which is also on the stringer 38 and the partial ribs 36 can extend.

The Ball segment variants registered here have no continuous Wave and avoid their negative influences on the media stream and the leakage rates. The area through which the medium flows in the middle of the Absperement is free of disturbing Components for the flowing ones Media. The ball segment is controlled exclusively from the outside. Since, with the media mass controls described here, none Wave in the air flow area projects, this is the type of media mass control optimum flow. In the versions with recessed outlet side is this type of media mass control multiple flow optimized.

The shut-off element is provided with ribs or stringers to reduce the wall thickness, which would otherwise have a Vollkugelabsperrelement. This wall thickness reduction in accordance with the "system of wall thicknesses that remain as constant as possible" serves to avoid stresses and to increase the cost-effectiveness in the production The shut-off element can be designed in one or more parts 22 . 24 . 26 can be one or more parts. The design depends essentially on the chosen manufacturing process.

The Flow or pulse shape characteristics can, depending on the geometric design of the spherical segment linear, progressive or declining balance become. The shape of the passage can be given according to the given additions in the cross section also slightly oval or polygonal or even square or triangular become. To progressive pulse shapes, or a particularly fast To lock of the media mass control, the passage opening in Essentially kidney-shaped or drop-shaped be modified. The renal form is a fast and abrupt one Shut off and the drop shape has a more gradual shut-off. It also a "kidney drop" - shaped cross section can be chosen Alternatively, from the open position, an abrupt shut-off or a gradual one To allow shut off. Depending on the direction of rotation can then other pulses are generated. With this form, the shut-off at an internal combustion engine at higher Speeds are used as a pulse charging element while it in the course with the sharp drop-shaped end an exact throttling the idle speed allowed.

When Materials for the outer housing and the Ball segment body preferably come distortion and low shrinkage polymer materials such as PPA, PPS, polyphtalamide, polyphenylene and others in question. But it can also used metallic materials, ceramics, glasses or natural substances become. Hybrid or composite, where the case and the ball segment body are made of different materials are also possible. at the production of a spherical segment in a housing arise inevitably forms with undercuts.

7 to 10 represent various possible arrangements of media mass controls 7 and 8th Safety edges with idle and throttle actuators as well as with load impulse shut-off elements are shown in longitudinal installation. In 9 Safety edges with idle and throttle actuators as well as with load impulse shut-off elements in longitudinal installation are shown in a top view. In 10 are switching strips with idle and throttle plates and with charging pulse shut-off elements in transverse installation shown in a plan.

In 7 is the cylinder head for the first time 74 , the intake manifold 76 and the fixing screws 78 shown.

In 8th is the first rowing direction 80 shown by several similar impulse charging elements.

In 9 is for the first time a baying parallel to the cylinder head longitudinal direction 92 shown.

In 9 is a sequencer for the first time 80 transverse to the cylinder head longitudinal direction 92 shown.

11 to 16 illustrate various possible arrangements of drivable multifunctional air mass control and impulse charging unit with two shut-off elements.

11A shows a pulse charging device with removed upper housing part 24 ,

In 11A is the recess for the first time 66 for a drive, a throttle, a sensor and / or an idler actuator shown.

11A shows an impulse charging device of 11A attached upper housing part 24 ,

12 to represents a combination of a pulse charging ball with a conventional idle and / or throttle 62 represents.

13 to a combination of a pulse charging ball with a conventional idling and / or throttle device, which also serves as a shut-off ball 64 is executed.

14 represents a possible juxtaposition of several anfreibaren multifunctional air mass control and impulse charging units with two shut-off elements. The individual elements can also be accommodated in a common housing.

15 illustrates a possible embodiment of a multi-functional air mass control and impulse charging unit with two shut-off elements in a partially transparent view.

16 Fig. 3 illustrates some parts of a possible embodiment of a multifunctional air mass control and impulse charging unit in perspective views.

A feature of these embodiments of 11 to 16 is a lateral flattening of the shutoff 2 and the housing to save space (Package). The shut-off element and the housing have a lateral flattening in the direction of the axis of rotation or the axle stub of the shut-off element in order to reduce the width of the media mass control element. This space can be used for position sensors such as potentiometers or controls. The place in the 11 to 16 can also be used for position sensors such as potentiometers or also for controls.

17 represents a media mass control with a built-in electric single-ball drive 17 has the housing schematically illustrated exciter windings 58 on which a rotating field should show, in which the ball is entrained, for example, as an induction rotor. The excitation windings can also be different depending on the type of planned operation. The integrated ball-race motor can be designed as a synchronous rotor. The integrated ball-race motor can be designed as an electrically commutated motor. Simpler variants could flank a conventional electric motor laterally. With expected running times of only 5000 h, very inexpensive and maintenance-free electric motors can be used. The integrated motor can be designed as a mechanically commutated motor. The integrated motor can be designed as a shunt or main circuit machine.

18 shows a schematic representation of a suction device according to an embodiment of the invention. The representation can be divided into three sections, a gas supply section, a plenum section and a suction pipe section. It should be noted that each combustion chamber is associated with its own intake manifold section, with the gas supply plenum section serving the respective intake manifold sections associated with the combustion chambers.

The first section, the gas supply section, includes the intake air compressor 114 , an air filter 111 , here with an integrated resonator 111 ' , as well as a combined air mass and gas pressure measuring unit 112 that have an air supply 115 with the intake plenum 120 are connected.

According to one embodiment, the combustion air must be brought to a certain working pressure, so that the pulse switching unit 132 by opening and closing generates a load pulse. The air masses drawn in from outside are for this purpose through the intake air compressor 114 compressed to the desired working pressure. For this purpose, a gear or duocentric (Roots-blower) system is advantageously used as the compressor unit, advantageously in the area of the air filter 111 used. The intake air compressor 114 itself can be arranged either before or after the air filter. The picture shows a suction air compressor 114 downstream air filter 111 , An air filter 111 downstream compressor unit (this arrangement is in 18 not shown) offer the advantage of lower pressure loss than in the case of the intake air compressor 114 downstream air filter 111 (in 18 ) Shown.

The compression of the air leads to their high acceleration and results in a high air flow velocity. Flowing air of high speed leads in particular to different flow cross sections, transitions, projections of the air ducts and the like among other things to turbulence and stalls, due to which the volume of air excited broadband. A corresponding noise development is the consequence, due to which it unacceptable Ge Noise perception of passengers in the vehicle interior can come. Acoustic resonator and damping elements in the air supply 115 provide for improved acoustics of the internal combustion engine during operation. Corresponding 18 and according to one embodiment of the invention, the imaged air filter 111 For this purpose, an integrated resonator 111 ' on.

Prior art aspirators have heretofore included air mass sensing units whose signals are required for engine management. Aspirating devices based on the invention require, in addition to the air mass measuring unit, a gas pressure measuring unit. Advantageously, a combined air mass and gas pressure measuring unit 112 as they are in 18 is shown, used, which makes it possible to determine in addition to the air mass and the boost pressure for the vote of the pressure of the pulse switching unit 132 generated gas charging pulses or as a parameter for the control of the pulse switching unit 132 is needed.

The second subsection, the plenum section, includes the aspiration plenum 120 , by means of the air supply 115 is supplied with air / gas, which is under a certain working pressure and from which starting, the respective combustion chambers (cylinders) of the internal combustion engine associated intake pipes are fed with air / gas. The illustration shows an example of a suction tube 130 that's over the air intake opening 131 is fed with air / gas from the intake plenum and that through the air inlet 141 in the cylinder head 140 the internal combustion engine opens.

In the 18 is in the area of the air supply 115 a throttle element 113 illustrated as known in the art. This throttle element, preferably arranged in a throttle element nozzle is not mandatory (optional) part of the invention.

The intake plenum may be further in the 18 have shown features. For example, it is possible to have a resonance volume in the intake plenum 121 and / or one or more resonance elements 122 (Resonance flap) bring. These are analogous to the above description of the attenuation of undesirable noise developments caused by the airflow dynamics. Furthermore, the intake plenum 120 have additional gas supplies. So it is possible, via an exhaust gas recirculation valve 123 that in the intake plenum 120 is introduced to return a portion of the exhaust stream, which has proven to be particularly effective for reducing the exhaust emission of internal combustion engines. Likewise, a gas flow caused by a turbocharger charge on a in the intake plenum 120 arranged turbocharger valve 124 in the intake plenum 120 be introduced. However, the exhaust gas flow or the gas flow of the turbocharging does not have to open into the intake plenum, but can also be introduced into one or more other locations in the intake device.

The third section, the intake manifold section, includes the intake manifold 130 passing through the air inlet 131 with air / gas from the intake plenum 120 is fed, and that in the air intake 141 of the cylinder head 140 empties. As described above, each combustion chamber of the internal combustion engine is a suction pipe in each case 130 and according to an air intake 141 in the cylinder head 140 assigned.

The suction tube integrates the media mass control element or the pulse switching unit 132 , This pulse switching unit 132 serves according to the invention, on the one hand, as an air throttle element and as a pulse-generating unit in order to generate an air charging pulse. In the function as an air throttle element, the pulse switching unit 132 According to one embodiment, a throttle element associated with the intake plenum (for example throttle element 113 ) make obsolete. The pulse switching unit 132 is according to the invention between intake plenum 120 and cylinder head 140 arranged and may be implemented in the form of one or more flaps, a shift drum, a shift cylinder, a shift ball or any other air throttle element. However, it is crucial that the pulse switching unit 132 is able to generate air charging pulse.

For this, the pulse switching unit must 132 meet a number of basic requirements in order to be able to work according to the invention. So must the switching time, that is, the time between opening and closing of the pulse switching unit 132 to be extremely short. The extremely short switching times enabled by the uniform rotation make it possible to generate air charging pulses with a pressure in the range from approx. 6 bar to approx. 20 bar. The pressure of the air charging pulses depends on both the switching time and further on the total pressure level of the air / gas in the intake plenum 120 from. This total pressure level results both from the pressure charge through the intake air compressor 114 as well as from a possible supply of compressed by a compressor and / or turbocharger gas flow (eg. By means of the turbocharger valve 124 ) and from a possible supply of an exhaust gas flow (eg by means of the exhaust gas recirculation valve 123 ). To the tightness of the pulse switching unit 132 are high demands, so that the leak rate is low, that is, that there is almost no leak rate. This can be done completely by the rotation without special Sealings or dampers can be realized. Due to the uniform rotation, the moving mass does not necessarily have to be kept low because it does not have to be accelerated or decelerated either during the opening process or during the closing process. However, it has to be considered that the actuators and the consequences of load change reactions are easier to ensure with a low moving mass. So that no parasitic effects occur, which in the worst case lead to a reduction in the pressure of the air charging pulses, sufficient rigidity or carrying behavior against deformations is caused by the air flow. Since the generation of the Luftladeinpulse is synchronous with the charging of the combustion chamber of the internal combustion engine with the air / fuel mixture to be ignited, a lifetime of several million revolutions is easy to ensure.

Advantageously, the pulse switching unit 132 implemented in the form of a rotating switching ball element or switching ball segment element. These embodiments have a number of significant advantages. Thus, the air / gas flow through these versions of the pulse switching unit 132 not disturbed by a wave or other / comparable other elements; A disturbance of the air / gas flow can severely hinder (prevent) or disturb the formation of air charging pulses.

In addition, the angular position and the angular velocity of these embodiments of the pulse switching unit 132 , ie the periodic opening and closing of the media mass control unit 132 be operated by rotation, which is operated as a pulse control element by a mechanical, magnetic, electrical or a combination thereof from the outside reliable, fast, reproducible and easy.

This in 18 illustrated suction tube 130 additionally has a resonance control unit 133 , an exhaust gas recirculation feeder 134 and a swirl and / or tumble element 135 on. The resonance control unit 133 serves analogous to the above-described resonant elements (integrated resonator 111 ' , Resonance volume 121 and / or resonance element 122 ) attenuation of undesirable noise developments caused by the airflow dynamics. As a resonance control unit 133 For example, it may be a rotatable actuator for controllably selecting a matched airflow cross-sectional area. Instead of returning a portion of the exhaust stream into the intake plenum 120 For example, a corresponding part of the exhaust gas flow can take place directly into the intake pipes assigned to the combustion chambers. Here preferably in the area between the pulse switching unit 132 and air intake 141 of the cylinder head 140 , The swirl and / or tumble element is near the air inlet 141 or preferably directly at the air inlet 141 and, if desired and / or required, may provide beneficial airflow formation, ie swirl or tumble, to the air / gas stream entering the combustion chamber, resulting in improved air / fuel mixing and distribution in the cylinder.

The in 18 shown section 100 includes the plenary 120 including the possible throttle element 113 and a portion of the illustrated suction tube including pulse switching unit 132 ,

In 19 to 21 Examples are shown various embodiments of intake systems. 19 shows a suction planning for row engines and two different Kugelabsperreinheiten 64 and 2 with different diameters for multi-valve engines. The large elements are for throttling and the smaller ones for pulse generation. In the plenum, the length of the suction path can be changed (see arrow). The intake plenum 56 has a mechanical adjustment 54 the intake routes. A flap 94 Can be installed in the suction path to between the shut-off elements 64 and 2 to switch back and forth.

In 20 shows a suction planning for V-engines and a kind of Kugelabsperreinheiten.

In 21 shows an intake planning for V-engines and continuous rollers 52 for generating charging pulses.

The The invention is not limited to the above embodiment which only the general explanation the core idea of the invention is used. Within the scope of protection can the device of the invention Rather, assume other than the embodiments described above.

So For example, the media mass control may be a double or Multi-media mass control be, which has a shut-off element with two or more passage openings.

The essentially spherical Barrier element can be oblate or lenticular or prolate or cigar-shaped his or in one of truncated cones formed rotational body represent. The axis of rotation of the shut-off element is always there parallel to an axis of symmetry of the shut-off element or the body, the arises during the rotation of the shutoff.

The shut-off elements can be with ribs can be provided and longitudinal (stringers), oblique, transverse, radial or as tangential ribs. Even a rib-shaped, for example, honeycomb-shaped structure is conceivable and should fall within the scope of the appended claims.

The flattened areas of the shut-off and the housing can also slightly conical accomplished be. Then, the axis of symmetry of the cone with the axis of rotation of the shut-off body coincide.

The Through hole of the shutoff can, for example, in relation slanted on the axis run, so the ratio of opening time can be controlled arbitrarily at revolution time. One or more "eccentric" holes can be accurate one, two or more different publicity periods per Define rotation of the switching element.

The Through hole of the shutoff can, for example, in relation on the entrance opening and the exit port be offset so that the time that takes an air pulse to the Volume of the through-hole to be traversed can be considered.

The Through hole of the shut-off element can continue the movement the shutoff during the passage of the air pulse, for example consider a cycloid or trochoidal shape of the through hole.

to Manufacture of these ball segment mass control elements can either the shut-off element or the housing to be shared. The division can, preferably mittsymmetrisch, along, transverse or oblique to the flow direction, be executed parallel or perpendicular to the axis of rotation. The shut-off element can be molded into the housing by the well-known fused core technology become. It must on the ball segment, the seal and the bearing elements (plain bearings or other bearings and bearing seals) already applied. The shut-off element with the seals and mounting parts is in formed a low-melting metal alloy and overmoulded with the housing body (Plastic technology) or melted or poured (metal technology).

The In this case, the device can in particular have features that are made a combination of the respective individual features of the claims follow. Reference signs in the claims are merely for the better understanding of the invention and should do not restrict the scope of protection.

2

shut-off

4

Through opening

6

camp

8th

poetry

10

drive

12

Drive control lines

14

control (Engine Management)

16

Accelerator control cables

18

accelerator

20

Accelerator sensor (Path / pressure transducer)

22

casing

24

Housing top

26

Housing bottom

28

stub shaft

30

shut-off

32

entry page

34

poetry

36

rib

38

Stringer

40

Spaces between Ribs / stringers

42

Contact surfaces / sealing surfaces

44

segment for flow optimization

46

Einlasstrom

48

outlet stream

50

off ball

52

Absperrwalze

54

Intake plenum

56

adjustable intake paths

58

Statrowicklungen (Schematic)

60

drive axle

62

throttle

64

throttle ball

66

recess for drive / Sensors / throttle / idle actuator

68

flattening

70

the entrance opening

72

output port

74

cylinder head

76

Intake / Intake manifold

78

fixing screw

80

Anreihungsrichtung

82

direction of rotation

84

diameter of the shutoff element

86

dimension the passage opening

88

dimension the entrance opening of the housing

90

Height of the pulse charging device (with stationary shut-off element)

92

direction of the engine block

94

switching door between throttling and pulse charging

111

air filter

111 '

integrated resonator

112

combined Air mass and gas pressure measuring unit

113

throttle element

114

Intake air compressor

115

air supply

120

Intake Plenum

121

resonance volume

122

resonant element

123

Exhaust gas recirculation valve

124

Turbocharger valve

130

suction tube

131

Air inlet opening

132

Media masses control

133

Resonance control unit

134

Exhaust gas recirculation supply

135

swirl and / or tumble element

140

cylinder head

141

air intake

Claims (14)

Media mass control, with a housing having at least one input opening. ( 70 ) and at least one exit opening ( 72 ), and at least one shut-off element ( 2 ) which is rotatably mounted in the housing, wherein the shut-off element ( 2 ) at least one passage opening ( 4 ), wherein the shut-off element ( 2 ) has a rotation axis defined by a passage about which it can be mechanically rotated, the entrance opening ( 70 ), the passage opening ( 4 ) and the exit opening ( 72 ) in at least one position of the shut-off element ( 2 ) are substantially aligned with each other and in at least one other position of the shut-off element ( 2 ) the connection between the inlet and outlet openings is completely closed, characterized in that the shut-off element ( 2 ) is provided with a drive, by means of which the shut-off element can be set in rotation, wherein the passage opening, the input opening ( 70 ) and the exit opening ( 72 ) periodically connects and closes to provide a pulse charging function. Media mass control element, according to claim 1, characterized in that that the drive is designed as an actuator housed in the housing, which is suitable for setting the shut-off element in rotation. Media mass control, according to one of the preceding claims, characterized characterized in that the housing Has at least one second air mass control. Media mass control element according to one of the preceding claims, characterized in that the shut-off element ( 2 ) has a substantially rotationally symmetric geometry. Media mass control element according to one of the preceding claims, characterized in that the shut-off element ( 2 ) has a substantially spherical geometry. Media mass control element according to one of the preceding claims, characterized in that that parts of the media mass control optimized for the plastics technology are. Media mass control element according to one of the preceding claims, characterized in that the shut-off element ( 2 ) in the housing through at least one bearing ( 13 ) is rotatably mounted. Media mass control according to one of the preceding claims, characterized in that the shut-off element ( 2 ) at least one circumferential seal ( 34 ), which in the closed state of the shut-off element ( 2 ) the input ( 70 ) and the exit opening ( 72 ) seals. Media mass control according to one of the preceding claims, characterized in that the housing ( 20 ) has at least one circumferential seal, which in the closed state of the shut-off ( 2 ) the input ( 70 ) and / or the exit opening ( 72 ) seals. Media mass control according to one of the preceding claims, characterized characterized in that the media mass control at least one Sensor has. Media mass control according to one of the preceding claims, characterized in that the shut-off element ( 2 ) is coupled to the crankshaft of an internal combustion engine such that the shut-off element moves in proportion to the movement of the crankshaft. Media mass control according to claim 11, characterized in that that the coupling is controlled with respect to the phase angle can. Intake device, in particular as an air intake system for an internal combustion engine, the air inlets associated with the combustion chambers ( 141 ) in a cylinder head ( 140 ) of the internal combustion engine, with a suction pipe associated with each combustion chamber ( 130 ) at one end into one of the air intakes ( 141 ) and at another end an air inlet opening ( 131 ) of a suction plenum ( 120 ), characterized in that each of the suction tubes ( 130 ) and / or the air supply ( 115 ) comprises at least one media mass control element according to one of the preceding claims. Intake device according to claim 13, characterized in that the mass media control element has an associated drive device which is capable of high air charging pulse To generate pressure by the media mass control is periodically opened and closed by a substantially uniform rotation.