EP1213473B1 - Ansaugsystem - Google Patents

Ansaugsystem Download PDF

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Publication number
EP1213473B1
EP1213473B1 EP01123101A EP01123101A EP1213473B1 EP 1213473 B1 EP1213473 B1 EP 1213473B1 EP 01123101 A EP01123101 A EP 01123101A EP 01123101 A EP01123101 A EP 01123101A EP 1213473 B1 EP1213473 B1 EP 1213473B1
Authority
EP
European Patent Office
Prior art keywords
unfiltered air
air intake
water
flap
unfiltered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01123101A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1213473A3 (de
EP1213473A2 (de
Inventor
Hermann Maurer
Klaus Lieb
Klaus Altmann
Thomas Haubold
Jürgen Werner
Andreas Epp
Jochen Linhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1213473A2 publication Critical patent/EP1213473A2/de
Publication of EP1213473A3 publication Critical patent/EP1213473A3/de
Application granted granted Critical
Publication of EP1213473B1 publication Critical patent/EP1213473B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10013—Means upstream of the air filter; Connection to the ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/10393—Sensors for intake systems for characterising a multi-component mixture, e.g. for the composition such as humidity, density or viscosity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/165—Marine vessels; Ships; Boats
    • F02M35/167—Marine vessels; Ships; Boats having outboard engines; Jet-skis
    • F02M35/168—Marine vessels; Ships; Boats having outboard engines; Jet-skis with means, e.g. valves, to prevent water entry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/112—Intake manifolds for engines with cylinders all in one line

Definitions

  • the invention relates to an intake system for an internal combustion engine of a motor vehicle according to the preamble of claim 1.
  • the device has a first one and an unfiltered air inlet, wherein a closure element is provided, which either closes the first or the second unfiltered air inlet.
  • a closure element In the first unfiltered air intake is a moisture sensor arranged, which via two electrically conductive sensor wires features.
  • the moisture sensor is connected to a control electronics, which the closure element controls
  • a disadvantage of this design is the considerable space required for the pipe, which in the engine compartment is arranged. This can not be done too small, otherwise the switching point of the arrangement can not be defined exactly. Still reacts this mechanical switching arrangement only when the vehicle is in a stagnant water dips. In the case of splash water, there is no pressure sufficient for switching built, whereby water enters the intake and affects the function of the engine.
  • the object of the invention is to provide an Asaugsystem, which in a small installation space can be integrated and the entry of snow, spray, or whipped water can prevent.
  • the intake system according to the invention for an internal combustion engine of a motor vehicle has a first unfiltered air intake and a second unfiltered air intake, both being unfiltered air inlets are brought together in a common line and this line with the internal combustion engine is communicatively connected.
  • each unfiltered air intake has its own components such as e.g. a separate filter element features.
  • Each unfiltered air intake consists of an opening through which air enters the intake system can flow in, and a line section, which the opening with the line combines.
  • the Rohluftemlässe are with one or more closure elements lockable, whereby either by the first unfiltered air intake or by the second Rohlufteinlass air in the communicatively connected to the internal combustion engine line arrives.
  • the closure element closes the respective unfiltered air intake completely, whereby Only feed air through the unclosed unfiltered air inlet into the pipe can.
  • the closure element may e.g. by a rotary body with corresponding openings are formed, which releases the first unfiltered air intake in an end position and in a second end position closes the first unfiltered air intake.
  • the inflowing Air directed directly or indirectly to the internal combustion engine.
  • the air can be pretreated, e.g. dried or cooled. If the air is routed directly to the engine, so is no additional component in the line required.
  • the first unfiltered air inlet is at a location advantageous for air intake in the motor vehicle arranged.
  • the front area is a preferred location because accordingly the motor vehicle speed, the air is forced into the unfiltered air intake is, whereby the degree of filling of the cylinder is improved. Furthermore, it is in the front area sucked air cooler than the air present in the engine compartment. In the front area, however, can also get snow, ice, spray or whipped water into the first unfiltered air intake.
  • Splashes are water drops of any size mixed with air, Splashing water can e.g. whirled up from the road by a preceding vehicle or be generated by rain.
  • the term impact water describes a larger amount of water, which e.g. when crossing a river as a water surge occurs.
  • the second unfiltered air intake is at a location less favorable for air intake in the motor vehicle arranged, this location is protected splash and impact water. Preferred places for the arrangement of the second unfiltered air inlet, e.g. the engine compartment or the ventilation system be
  • a movement unit For actuating the closure element, a movement unit is provided, which connected to a control.
  • the movement unit may e.g. by an electric motor or a vacuum can be formed and is activatable with the control, whereby the movement unit has a rotary or translatory movement performs, which moves the closure element in an end position and so either the closes first or second Rohlufteinlass.
  • the control is through a Moisture sensor is formed, which has a signal output for controlling the movement unit
  • the humidity sensor also for regulation can be used.
  • the moisture sensor can be adjusted in such a way that it can be sprayed, What affects the engine even in their function, a signal to the Moving unit sends, through which the first unfiltered air intake is closed.
  • a signal to the Moving unit sends, through which the first unfiltered air intake is closed.
  • the signal from the humidity sensor can be sent directly, as well as via electronics, such as. the motor control to which the motion unit is sent.
  • the second unfiltered air intake open, whereby the internal combustion engine from the second unfiltered air intake sucked in air for combustion receives.
  • the closure element is a Flap.
  • the flap may e.g. be circular, oval or rectangular, so that it closes the second unfiltered air inlet in a first position and in a second position Position closes the first unfiltered air intake.
  • the flap can be centrally located on one Damper shaft can be arranged and by a rotational movement of the valve shaft to be moved.
  • the valve shaft is in an edge region arranged and thus allows a Störkonturcycle Roh Kunststoffansaugung. To penetrate of water in the first unfiltered air intake, especially when submerged in a body of water, To prevent the flap can have a circumferential seal.
  • a first flap in the first unfiltered air intake and a second flap is disposed in the second unfiltered air intake, with both flaps communicating connected to each other.
  • the communicating connection of the flaps can be mechanically, e.g. with a strut or electronically by a signal, which in particular emanating from the humidity sensor.
  • the flap has two corresponding to each other connected flap parts on. These flap parts can be at a defined angle to each other be arranged, touching directly or by means of fasteners can be rigidly connected.
  • the flap parts but also locally be arranged separately and correspond to each other only via the movement unit.
  • the flap parts may e.g. a circular, oval or rectangular cross-section have, with a flap part closes a Rohlufteinlass.
  • the flap parts can have a circumferential seal, sealing the unfiltered air intakes are closable.
  • the movement unit is a lifting magnet, which communicating with the humidity sensor is connected.
  • the solenoid can a perform axial or radial movement to move the closure element.
  • the moisture sensor senses water, it sends a signal to the solenoid from which a movement of the solenoid and thus the change in position of the closure element causes.
  • the solenoid reacts within fractions of a Second on the signal, whereby the first unfiltered air inlet is closed before water penetrate and get to the engine.
  • solenoids via an anchor, a spring, a coil, a yoke and an electric Connection.
  • the moisture sensor is a capacitance sensor, which has two spaced apart capacitor plates.
  • the capacitor plates be connected to an AC voltage source, creating an electrical Field is generated with a defined field strength.
  • the field strength is known depending on the applied voltage and the distance of the capacitor plates from each other. The farther apart the capacitor plates are, the weaker is the electric field.
  • the capacitance of capacitors depends on the area and the distance of the capacitor plates, as well as from the Permittivity number of the substance between the capacitor plates.
  • the capacitor plates comprise an electrically conductive material, such as e.g. Metal on.
  • This Electrically conductive material may have a protective layer of a non-conductive Material such as Kunststoffsoff, dispose.
  • the protective layer may e.g. a corrosion protection which completely encloses the capacitor plates, whereby the capacitor plates do not come in direct contact with water or air.
  • the capacitor plates are connected to an evaluation unit in which the electric field between the capacitor plates is evaluated.
  • the evaluation unit measures the capacity of the Capacitor plates with high-frequency AC voltage. Air has a permittivity number of about 1 on and water has a Permittworkssiere of about 80. Once water instead of sucking in air, the permittivity between the capacitor plates changes considerably, whereby the evaluation unit sends a signal to the movement unit sends and the first unfiltered air inlet is closed by the closure element.
  • the capacity sensor can be adjusted so that it only on water, so if the permittivity between the capacitor plates changes significantly, reacts. For other settings, even a small change in the permittivity number sufficient to close the first unfiltered air intake.
  • the capacitor plates can be parallel or at any point in the motor vehicle be arranged mirror images of each other.
  • the capacitance sensor is arranged on the first unfiltered air intake, wherein the capacitor plates semicircular be formed and can surround the first unfiltered air intake.
  • An advantageous embodiment of the invention is a concentric structure of the capacitance sensor.
  • the capacitor plates are cylindnsch, with an outer Capacitor plate enclosing an inner capacitor plate.
  • This concentrically constructed Capacitance sensor can be arranged directly in the first unfiltered air intake, wherein the contour of the outer capacitor plate of the inner contour of the first unfiltered air intake equivalent.
  • a web or a plurality of webs may be provided which the flow of the Influence intake air only very slightly.
  • the webs of an electric insulative material in particular of the same material as the protection layer of the capacitor plates.
  • the capacitor plates run within the first unfiltered air inlet at an angle to each other, each condenser plate on the one hand touches the first line section and on the other hand centrally in the first blank air section are fixed.
  • the angle may preferably 90 °, whereby four electric fields can be generated and evaluated.
  • the moisture sensor is in one Plane arranged with the first unfiltered air intake.
  • the unfiltered air intake be arranged in a remote location, which is mainly in contact with water comes.
  • the closure element is above the moisture sensor in a defined Distance arranged, allowing a sufficient reaction time between the sensing of water and closing the first unfiltered air inlet, so that no water can penetrate.
  • the humidity sensor is at a location in the engine compartment arranged. As a result, the humidity sensor detects the environmental conditions in the engine compartment.
  • the moisture sensor dives simultaneously the unfiltered air intake into stagnant water and immediately causes the closure of the first unfiltered air inlet through the higher arranged closure element.
  • a further embodiment of the invention provides that the moisture sensor in the first unfiltered air inlet is arranged.
  • the humidity sensor accurately detects the condition which prevails in the first unfiltered air intake. He causes the closure of the first Rohlufteinlasses through the closure element, as soon as water in the first unfiltered air intake penetrates.
  • the closure element is arranged downstream of the moisture sensor, wherein the distance between the closure element and the moisture sensor such it is chosen that after the sensing of the water still a sufficient reaction time remains, which closes the first unfiltered air inlet, before the water on the closure element flow past and get to the engine.
  • the moisture sensor is heatable executed.
  • a resistance heater can be used.
  • the heat from adjacent components for heating the humidity sensor can be used. For example, by heating the humidity sensor Snow or ice to be melted.
  • the heating of the humidity sensor be used to evaporate the adhering water droplets.
  • An advantageous embodiment of the invention provides the arrangement of several moisture sensors in front.
  • the humidity sensors also at underschliedlichen points in the engine compartment can be arranged.
  • a switching logic can be established.
  • Farther can use moisture sensors with different principles of action or sensitivities be combined.
  • the humidity sensors can be directly next to each other or be arranged at different locations in the motor vehicle.
  • Arrangement may e.g. a high sensitivity humidity sensor in the first unfiltered air intake and a less sensitive humidity sensor in the engine compartment below the first one Rohlufteinlasses be arranged. This allows underschliedliche switching variants be formed.
  • the less sensitive moisture sensor dips into water, it can output the signal to close the first dirty air duct, although the highly sensitive humidity sensor still has no water contact.
  • both moisture sensors come into contact with spray water, which the insensitive moisture sensor still sends no signal but the highly sensitive Moisture sensor the signal to close the closure element sending out.
  • the functionality of the moisture sensor at the start of the Internal combustion engine is testable.
  • a Sensor test which checks the functionality of the humidity sensor, so that the Moisture sensor in case of need is also functional.
  • the humidity sensor e.g. be connected to a warning light, which after the sensor test, if the sensor is working properly, goes out.
  • the control light may e.g. flash or constantly light up.
  • the functionality of the Movement unit and the closure element at the start of the internal combustion engine verifiable.
  • the moving unit and the shutter member at each start the internal combustion engine moves, making all parts in case of need and not functional by e.g. Corrosion are unable to move.
  • the review of the motion unit and of the closure element may e.g. with a warning light and only go out after successful movement.
  • an intake system is shown schematically.
  • the intake system has a first unfiltered air intake 10 and a second unfiltered air intake 11.
  • the unfiltered air inlets 10, 11 open into a common line 12, which to an internal combustion engine (not shown) leads.
  • the first unfiltered air intake 10 is designed as a separate component, which is sealingly connected to the conduit 12.
  • the first and the second unfiltered air intake 10, 11 be integral with the conduit 12.
  • the intake system has a flap 13, which depending on the position of the first unfiltered air intake 10 or the second unfiltered air intake 11 closes.
  • the flap 13 closes the second unfiltered air intake 11, whereby the sucked air enters the intake system through the first unfiltered air intake 10 and the internal combustion engine is supplied.
  • This first position is the basic position, since the first unfiltered air intake 10, which creates more favorable conditions for the internal combustion engine. Deviation from the first position occurs only when passing through the first unfiltered air intake 10 water or snow enters the intake system.
  • a Moisture sensor 14 is provided, which is connected to a vacuum box 15.
  • the moisture sensor 14 which is designed as a conductivity sensor, with Water or snow comes in contact, its conductivity changes and it becomes one Signal from the humidity sensor 14 via a connecting line 16 to the vacuum box 15 sent.
  • the vacuum box 15 By the signal the vacuum box 15 generates a movement, by which the flap 13 in a second position (shown in phantom) moves becomes.
  • the first unfiltered air intake 10 is closed and the second unfiltered air intake 11 is opened.
  • the flap 13, which has a flap shaft 17, is connected to the vacuum box 15, whereby the flap shaft 17 rotational is moved and thereby the flap 13 from the first position to the second position (shown in phantom) moves.
  • the first unfiltered air intake 10 is connected to the first opening through a first opening 18 18 subsequent first line section 19 formed.
  • the humidity sensor 14 is arranged such that no water on the flap 13 past in the line 12th has arrived.
  • the second unfiltered air intake 11 is through a second opening 20 and a second line section 21 is formed.
  • the second opening 20 is at an injection and impact water protected location in the motor vehicle arranged, which above the first opening 18 is located.
  • the line sections 19, 21 can arbitrary space curves in the motor vehicle, thereby fitting the intake system into the engine compartment can be.
  • the intake system is shown in a variant.
  • the figure 1 corresponding Components are provided with the same reference numerals.
  • the flap 13 for closing the first unfiltered air intake 10 is with a defined distance A to the humidity sensor 14 in the first line section 19 arranged.
  • the distance A is designed so that the water during the Response time, which is between the detection of water by the humidity sensor 14 and the closing of the first unfiltered air inlet 10 passes, further into the first Rohlufteinlass 10 can penetrate, without in the line 12, which correspond with the internal combustion engine is connected to arrive.
  • the flap 13 must be closed be.
  • the water can thus in the second position (shown in phantom), when the Flap 13 closes the first unfiltered air intake 10, maximally penetrating up to the flap 13, but not get into the line 12.
  • the flap 13 has two flap parts 22, wherein the Valve parts 22 are rigidly connected together. In the first position closes one the flap parts 22, the second unfiltered air intake 11. In the second position (dash-dotted lines shown) the other flap part 22 closes the first unfiltered air intake 10 and the second unfiltered air intake 11 is released.
  • the flap 13 is provided with a lifting magnet 23 moved (the solenoid is shown rotated by 90 °).
  • the conduit 12 has a raw area 24 and a clean area 25 between the Raw area 24 and the clean area 25, a filter housing 26 is arranged, in which a filter element 27 is sealingly introduced, whereby the clean area 25 sealing from the raw area 24 is separated. Furthermore, in the filter housing 26, a second humidity sensor 28, which monitors the sucked air in the filter housing 26.
  • This second humidity sensor 28 is a conductivity sensor with two electrodes 29, which are arranged parallel to each other. Once this second humidity sensor 28, which is e.g. more sensitive to moisture e.g. Splashing water reacts when the first humidity sensor 14, a signal that generates water in the filter housing 26th penetrated, the solenoid 23 can also be activated, whereby the first unfiltered air intake 10 is closed by the flap 13.
  • The, purified by the filter element 27 air is in the clean area 25 of the line 12 a Intake air manifold 30 supplied.
  • the air supply of the intake manifold 30 may by means of a throttle valve 31 in accordance with the operating conditions of the internal combustion engine be regulated.
  • FIG. 3 shows a circuit diagram.
  • This circuit diagram represents the temporal Sequence in the detection of water in the intake system.
  • the time axis runs horizontal and the voltage axis vertical.
  • the curve I describes the voltage curve of the humidity sensor 14
  • the Curve II represents the switching signal of the humidity sensor 14, which corresponds to curve III the control signal of the moving unit
  • the curve IV describes the movement of the moving unit
  • the curve V indicates the position of the flap 13 again.
  • the flap 13 (according to one of Figures 1, 2) in its first Position.
  • the humidity sensor 14 has come into contact with water, thereby his tension changes.
  • a switching signal b generated by the signal output of the humidity sensor 14 to the moving unit is directed.
  • the control signal for the movement of the moving unit takes place and at d the movement of the moving unit begins.
  • the movement is closed at e, whereby the flap 13 completely closes the first unfiltered air intake 10.
  • R which is shorter than one second. For fast components Reaction times of a few milliseconds can be realized, whereby even small distances A between the Feuchtingkeitssensor 14 and the flap 13 sufficient to prevent water from entering the conduit 12.
  • FIG. 4 shows a moisture sensor 14, which is designed as a conductivity sensor is.
  • the conductivity sensor has two electrodes 29, which by insulation 32 are separated.
  • the moisture sensor 14 has an evaluation 33, which is integrated in a sensor housing 34. Via a signal output 35 can signals from the transmitter 33 to the flap 13 (according to Figure 1 or 2) be directed.
  • the electrodes 29 are the electrodes 29 conductively connected to each other. Only a small drop of water forms one Bridging the insulation 32, so changes the conductivity of the Moisture sensor 14 lower than in a completely surrounded by water Moisture sensor 14.
  • the humidity sensor can be adjusted so that the first unfiltered air intake 10 (not shown) already in splashing or only at Blowing water is fired.
  • FIG. 5 shows a moisture sensor 14 with a plurality of electrodes 29.
  • the moisture sensor 14 with three pairs of electrodes 36 with different electrode spacing D on, wherein the electrodes 29 exclusively by the air is isolated from each other.
  • All three electrode pairs 36 are on the same sensor housing 34th arranged.
  • the values of the three electrode pairs 36 are in the same evaluation electronics 33, which is arranged in the sensor housing 34, processed, wherein a Switching logic is deposited.
  • the first pair of electrodes 36 which is the lowest Electrode distance D
  • water sensed and the other two electrode pairs 36 do not sense water, it is splashing water. Sensing all three electrode pairs 36 water, it is to hit water, e.g. when crossing one Water ford.
  • the results of the electrode pairs 36 are to be linked and output as a signal to the moving unit (not shown).
  • FIG. 6 shows a suction system in a perspective view.
  • the intake system has a first unfiltered air intake 10, a second unfiltered air intake 11 and a conduit 12, which is correspondingly connected to an internal combustion engine (not shown) on.
  • the first unfiltered air intake 10 has a first opening 18, through which air in the Intake system can flow and a first line section 19, which is the first Opening 18 connects to the line 12.
  • the second unfiltered air intake 11 has a second one Opening 20 and a second conduit section 21, wherein the second conduit section 21 the second opening 20 connects to the conduit 12.
  • the cross section of the second unfiltered air intake 11 is smaller than the cross section of the first unfiltered air intake 10, whereby the second unfiltered air intake 11 can be executed unsealable.
  • the air is always through sucked the inlet with the lower air resistance, which also in an unclosed second unfiltered air intake 11, the air through the opened first unfiltered air intake 10 is sucked. Only at a closed first unfiltered air intake 10 is sucked the air through the second Rohlufteinlass 11.
  • the first unfiltered air intake 10 is made in one piece with the conduit 12, wherein the first Rohlufteinlass 10 seamlessly merges into the line 12.
  • a flap 13 is provided, which on a Damper shaft 17 is arranged.
  • the flap shaft 17 is provided with a Drehklappenversteller 37, which rotates the flap shaft 17.
  • the second unfiltered air intake 11 opens, seen in the flow direction behind the flap 13 in the line 12th
  • a humidity sensor 14 is arranged, which of two capacitor plates 38 is formed.
  • the capacitor plates 38 are curved, wherein the first line section 19 in a partial region axially and radially umsch manen. Furthermore, the capacitor plates 38 are arranged opposite one another, whereby an electric field 39 is generated. Both capacitor plates 38 have via a respective voltage terminal 40.
  • the voltage terminals 40 are connected to a Evaluation unit 41 connected. In the evaluation unit 41, this is done by the capacitor plates 38 generated electric field 39 evaluated.
  • the evaluation unit 41 measures with a higher-frequency AC voltage, in particular an alternating voltage in the range of 10-50 kHz the complex resistance of the electric field 39.
  • FIG. 7 shows a suction system in a perspective view.
  • the figure 6 corresponding Components are given the same reference numerals in this embodiment the first unfiltered air inlet 10 and the second unfiltered air intake 11 are made in one piece, wherein the unfiltered air inlets 10,11 are formed by a tube 42, in which on the one hand the first unfiltered air intake 10 with its first first opening 18 and on the other hand the second unfiltered air intake 11 is arranged with its second opening 20.
  • the control range 43 is of by defines two end positions of the flap 13, wherein the flap 13 sealingly into the tube 42 is introduced.
  • the flap 13 closes the second unfiltered air intake 11, whereby in the conduit 12 only air passes through which first unfiltered air intake 10 has entered the intake system.
  • the second end position (Position y) (shown in phantom) closes the flap 13, the first unfiltered air intake 10, whereby only air, which was sucked from the second Rohlufteinlass 11 in the Line 12 arrives.
  • the flap 13 is designed as a slide, whereby a translational Movement to move the flap position is required. This is a Push rod 44 on the one hand with the flap 13 and on the other hand with a Moving unit (not shown) connected.
  • the movement unit may e.g. one Be solenoid or an electric motor.
  • the humidity sensor 14 which is in the first Rohlufteinlass 10 is arranged, by two concentrically arranged capacitor plates 38 formed.
  • the first capacitor plate 38 is formed as a hollow cylinder, wherein they on the outside of the first line section 19 abuts. Furthermore, the first encloses Capacitor plate 38, the second capacitor plate 38, which is cylindrical.
  • Webs 45 which are arranged at 90 ° to each other, provided. The webs 45 consist, at least partially of an electrically insulating material, so between the capacitor plates 38 can not be done directly charge exchange.
  • Both capacitor plates 38 each have a voltage terminal 40, by means of which they with the evaluation unit 41 are connected.
  • Figure 8 is a section along the section line A-A shown in FIG 7, wherein the left and the right half show different configurations.
  • first capacitor plate 38 On the left half of the first capacitor plate 38 is circular in cross section educated. It consists of metal and is located directly on the first line section 19, which consists of plastic on.
  • the second capacitor plate 38 is in its cross section formed circular and by means of webs 45 made of plastic within the first Capacitor plate 38 is arranged.
  • the webs 45 are dimensioned such that they have a form the lowest possible flow resistance, however, the second capacitor plate 38th fix in their position.
  • the two capacitor plates 38 are provided with an insulating layer 46 coated plastic, wherein the insulating layer 46 in this embodiment, the Webs 45 which form the second capacitor plate 38 fix in position.
  • the capacitor plates 38 are in a 90 ° to each other arranged, with all the capacitor plates 38 connected to the first line section 19 are and are centrally fixed in the first unfiltered air intake 10 insulating.
  • the electric Field 39 is arranged between the angles to each other Capacitor plates 38 generated.
  • FIG. 9 shows a detail of an intake system.
  • the figure 6 corresponding Components are provided with the same reference numerals.
  • the first unfiltered air inlet 10 has a rectangular cross-section 50.
  • the Capacitor plates 38 are parallel to each other outside the first line section 19 arranged, whereby the electric field 39 can be easily evaluated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Ocean & Marine Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Characterised By The Charging Evacuation (AREA)
EP01123101A 2000-10-26 2001-09-27 Ansaugsystem Expired - Lifetime EP1213473B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10053149A DE10053149A1 (de) 2000-10-26 2000-10-26 Ansaugsystem
DE10053149 2000-10-26

Publications (3)

Publication Number Publication Date
EP1213473A2 EP1213473A2 (de) 2002-06-12
EP1213473A3 EP1213473A3 (de) 2003-06-04
EP1213473B1 true EP1213473B1 (de) 2005-07-06

Family

ID=7661168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123101A Expired - Lifetime EP1213473B1 (de) 2000-10-26 2001-09-27 Ansaugsystem

Country Status (6)

Country Link
US (1) US6453866B1 (ja)
EP (1) EP1213473B1 (ja)
JP (1) JP2002195114A (ja)
AT (1) ATE299238T1 (ja)
DE (2) DE10053149A1 (ja)
ES (1) ES2245334T3 (ja)

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CN101479525B (zh) * 2006-10-27 2012-02-08 夏普株式会社 照明装置和液晶显示装置
WO2008116871A1 (de) * 2007-03-28 2008-10-02 Mahle International Gmbh Frischluftanlage
JP2009019513A (ja) * 2007-07-10 2009-01-29 Kanto Auto Works Ltd エンジン用吸気装置
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JP5227063B2 (ja) * 2008-04-10 2013-07-03 株式会社イノアックコーポレーション 車両用吸気ダクト
CN101259827A (zh) * 2008-04-13 2008-09-10 陈通平 一种从驾驶室内进气的副进气道及其控制装置
DE102008022630B4 (de) * 2008-05-08 2015-12-31 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugklimaanlage mit einem Filterelement mit Feuchtesensor und Verfahren zum Betreiben einer Fahrzeugklimaanlage
DE102008037924A1 (de) 2008-08-14 2010-02-18 Bayerische Motoren Werke Aktiengesellschaft Ansaugsystem für eine Brennkraftmaschine eines Kraftfahrzeugs
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DE102010001655A1 (de) * 2010-02-08 2011-08-11 Robert Bosch GmbH, 70469 Verfahren und Vorrichtung zur Vermeidung von Wasserschäden bei Verbrennungsmotoren
US8540043B2 (en) 2010-08-30 2013-09-24 Honda Motor Co., Ltd. Over bulkhead air intake for reduced snow ingestion
US8439143B2 (en) 2011-02-21 2013-05-14 Honda Motor Co., Ltd. Over bulkhead air intake system
CN102735001B (zh) * 2011-03-29 2015-08-19 日本电产三协株式会社 制冰装置及其控制方法
US20120270490A1 (en) * 2011-04-21 2012-10-25 GM Global Technology Operations LLC System and method of shutter control
DE102012208054A1 (de) * 2012-05-14 2013-11-14 Continental Automotive Gmbh Sauerstoffsensor und diesen aufweisende Brennkraftmaschine
CN103670831B (zh) * 2012-09-04 2016-05-11 曼胡默尔滤清器（上海）有限公司 一种可提高涉水能力的进气管结构
JP6027432B2 (ja) * 2012-12-25 2016-11-16 日野自動車株式会社 エアクリーナ
EP2848741B1 (en) * 2013-07-19 2015-09-30 Komatsu Ltd. Air cleaner for the engine of a wheel loader
CN103587405A (zh) * 2013-10-14 2014-02-19 沈阳建筑大学 汽车进气系统进水保护装置
CN103967661B (zh) * 2014-05-26 2016-01-27 安庆市向科爆破工程技术有限公司 潜孔钻机双路进气道
DE102014216660A1 (de) 2014-08-21 2016-02-25 Bayerische Motoren Werke Aktiengesellschaft Steuereinheit zum Detektieren von Schnee im Ansaugtrakt einer Brennkraftmaschine
WO2017073273A1 (ja) 2015-10-28 2017-05-04 日立オートモティブシステムズ株式会社 内燃機関制御装置
US10768131B2 (en) 2015-11-25 2020-09-08 Kyocera Corporation Sensor substrate arrangement for a particulate sensor device
DE102016201518B3 (de) * 2016-02-02 2017-05-04 Bayerische Motoren Werke Aktiengesellschaft Luftführungssystem einer Verbrennungskraftmaschine
JP6547958B2 (ja) * 2016-03-01 2019-07-24 トヨタ自動車株式会社 吸気ダクト
US10830573B2 (en) 2016-05-13 2020-11-10 National Institute For Materials Science Droplet size determining device and droplet size determining method
EP3444596B1 (en) * 2016-05-20 2020-03-04 Kyocera Corporation Sensor board and sensor device
KR101852592B1 (ko) * 2016-07-21 2018-04-27 에이치엘비 주식회사 선박용 엔진의 해수유입 방지장치
US10280879B2 (en) * 2016-09-09 2019-05-07 Fca Us Llc Snorkel and pressure relief valve for dual path cool air inlet system
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JP6722649B2 (ja) * 2017-12-28 2020-07-15 株式会社イノアックコーポレーション エンジン用吸気ダクト
CN109058007A (zh) * 2018-09-30 2018-12-21 福州大学 一种发动机防进水装置及其工作方法
US11203261B2 (en) * 2019-12-10 2021-12-21 Ford Global Technologies, Llc Systems and methods for controlling air induction to an engine of a vehicle
CN111472903A (zh) * 2020-04-21 2020-07-31 张英虎 一种汽车发动机进气遇水保护装置
CN113738547A (zh) * 2020-05-27 2021-12-03 长城汽车股份有限公司 车辆高位进气管的涉水喉结构及高位进气结构和其控制方法
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Also Published As

Publication number Publication date
EP1213473A3 (de) 2003-06-04
ES2245334T3 (es) 2006-01-01
US20020078916A1 (en) 2002-06-27
DE50106681D1 (de) 2005-08-11
JP2002195114A (ja) 2002-07-10
DE10053149A1 (de) 2002-05-08
ATE299238T1 (de) 2005-07-15
EP1213473A2 (de) 2002-06-12
US6453866B1 (en) 2002-09-24

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