EP2873845A1 - Motopropulseur avec admission d'air réglable - Google Patents

Motopropulseur avec admission d'air réglable Download PDF

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Publication number
EP2873845A1
EP2873845A1 EP20140466019 EP14466019A EP2873845A1 EP 2873845 A1 EP2873845 A1 EP 2873845A1 EP 20140466019 EP20140466019 EP 20140466019 EP 14466019 A EP14466019 A EP 14466019A EP 2873845 A1 EP2873845 A1 EP 2873845A1
Authority
EP
European Patent Office
Prior art keywords
air intake
drive unit
air
intake
operating conditions
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.)
Withdrawn
Application number
EP20140466019
Other languages
German (de)
English (en)
Inventor
Stanislav Bedrich
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.)
Skoda Auto AS
Original Assignee
Skoda Auto AS
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 Skoda Auto AS filed Critical Skoda Auto AS
Publication of EP2873845A1 publication Critical patent/EP2873845A1/fr
Withdrawn legal-status Critical Current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
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face

Definitions

  • the invention relates to a drive unit of a motor vehicle, in particular a drive unit with adjustable air intake.
  • motor vehicles are powered by reciprocating internal combustion engines that use as fuel a mixture of liquid fuel and air, the air being taken from the environment.
  • the state of the environment is different, characterized by the very different temperature, the dust content, the occurrence of snowflakes and in particular by the water droplet content.
  • the drops of water of various sizes are contained in the surrounding air in or after rain, for example, when the rain-soaked road is traveled just after the rain.
  • the drops of water in the air arise so that the water layer is taken from the road through the rotating tire profile and thrown by the centrifugal force in the air.
  • the water flushes the road surface and flushes out the dirt particles, which may also be the raised from the environment of the road surface silica sand grains, so that the water mist on the road next to the water also contains other dirt particles.
  • the performance of the internal combustion engines is influenced by the temperature of the intake air, at lower temperatures usually the engine power is higher and the heat load of the engine is lower, existing vehicles in the front body area are equipped with the intake air supply, so that the impacting cold air is collected in front of the vehicle. Since the front portion of the body, characterized by the radiator grille and the front bumper, is low for aerodynamic reasons, the intake air intake is also low above the road surface, that is in the high polluted water mist area. This ultimately leads to the fact that in the case cited, so when driving on a wet road, large amounts of water droplets containing dangerous dirt particles penetrate into the intake.
  • the filter insert If the inlet surface of the filter insert is then hit with water droplets as described above, the water droplets are initially intercepted by their absorbency, but with massive drop feed, for example, prolonged ride in the rain, the filter insert is locally saturated and penetrate the other water supplied towards the engine intake , With this penetration, the water can rinse out the filter insert and so the siliceous Into the fine engine mechanics entrain microparticles, with a devastating abrasive effect on the important engine parts, such as pistons, piston rings, cylinder liners, etc. Second undesirable effect of penetrating into the intake manifold of the engine water is the possible damage to the electronic sensor for the intake air flow measurement. While at the first kind of damage, abrasive action of microparticles, the devastating effect gradually proceeds, damage of the electronic sensor is followed by its immediate functional failure.
  • a drive unit with adjustable air intake which is arranged in the engine compartment with a luftzuggekarten area and includes an internal combustion engine with control unit, which is equipped with a suction filter and further a separator.
  • the illustration of the invention lies in the fact that a two-way air divider with slide is connected to the intake filter, which is connected to an actuator.
  • the two-way divider has an air main inlet connected to the separator, a protected air inlet connected to the draft protected area and an air outlet connected to the intake filter of the internal combustion engine such that in normal operating conditions the spool occupies a position in which the main air intake communicates connected to the air outlet and in unfavorable operating conditions, the slider occupies the other position in which the protected air inlet is connected to the air outlet.
  • the adjustment of the corresponding position of the slide is ensured by the fact that the actuator is connected to the control unit to which at least one sensor of the operating conditions is connected.
  • the operating condition sensor may be a rain sensor, windscreen wiper switch, outdoor temperature sensor or motor temperature sensor.
  • an actuator may be an electric, pneumatic or hydraulic servomotor.
  • FIG. 1 schematically the Arrangement of the drive unit with adjustable air intake in a preferred embodiment shows.
  • Fig. 1 can be seen, located in the engine compartment 2, a drive unit with adjustable air intake 1 , which consists of an internal combustion engine 3 with control unit 4 , which has a suction filter 5 , to which a two-way air divider 6 is connected via a pipe 16 .
  • This comprises a slide 7, which is connected to an actuator 8 , which may be designed as an electric, pneumatic or hydraulic servomotor.
  • an actuator 8 which may be designed as an electric, pneumatic or hydraulic servomotor.
  • the control unit 4 one or more sensors operating conditions 9 is connected, which query the operating conditions, such as the pollution of the outside air with water droplets or snowflakes, the activation of the windshield wiper switch, the outside temperature or temperature of the internal combustion engine.
  • the drive unit 1 further comprises a separator 10 corresponding to the conventional design and a region 11 which is protected against air-entrainment. This may for example be arranged in the engine compartment 2 or elsewhere, the location being chosen so that no dirt particles, such as the water drops and the like, can penetrate into the protected inlet 13 .
  • the two-way air divider 6 has two air inlets, namely an air main inlet 12 , which is connected via a pipe 15 to the separator 10 , and a protected air inlet 13 , which is connected to the draft protected area 11 , and further an air outlet 14 , which via a Pipe 16 is connected to the intake filter 5 of the engine 3 .
  • the slider 7 In normal operation, when there are no undesirable impurities in the environment, such as water mist, higher amounts of airborne particles or snow, as determined by the corresponding sensors of the operating conditions 9, such as the rain sensor, the slider 7 is based on the signal of the control unit 4 by the actuator 8 is set so that the main air inlet 12 is connected to the separator 10 via the pipe 15 and the intake air is taken from the impingement air, for example, in front of the grille, while the draft-protected inlet 13 is closed by the slider 7 .
  • control unit 4 may also send the vehicle operator a command to move the slider 7 so that the main intake 12 is closed and the protected air intake 13 , which is connected to the draft-protected area 11 , is opened and penetrate into the protected air inlet 13 no dirt particles such as water droplets.
  • control of the position of the slider 7 may alternatively be derived from other parameters, for example, the temperature of the vehicle environment and the engine. This allows, for example, a faster heating of the engine 3 at cold start with a positive effect on fuel consumption and pollutant emissions.
  • Another possibility is the continuous removal of the intake air from the luftzuggeflatten area 11, for example, while driving at very low ambient temperature, if by constantly higher temperature of the intake air and complete prevention of the ingress of Snow particles in the intake filter 6 possible driving disturbances are prevented.
  • Another possibility is the proportional control of the position of the slide 7 , if, for example, at low loads of the motor 3, the slider 7 is partially adjusted so that the cross section between the main air inlet 12 and the separator 10 is reduced, for example, the volume of the motor third to lower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP20140466019 2013-09-27 2014-09-26 Motopropulseur avec admission d'air réglable Withdrawn EP2873845A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2013-744A CZ2013744A3 (cs) 2013-09-27 2013-09-27 Pohonná jednotka s regulovatelným sáním

Publications (1)

Publication Number Publication Date
EP2873845A1 true EP2873845A1 (fr) 2015-05-20

Family

ID=51903860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20140466019 Withdrawn EP2873845A1 (fr) 2013-09-27 2014-09-26 Motopropulseur avec admission d'air réglable

Country Status (2)

Country Link
EP (1) EP2873845A1 (fr)
CZ (1) CZ2013744A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113417780A (zh) * 2021-07-28 2021-09-21 徐州徐工挖掘机械有限公司 发动机进气过滤装置自清洁系统及自清洁方法、挖掘机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19944287A1 (de) 1998-09-18 2000-03-23 Koito Mfg Co Ltd Fahrzeugleuchte
EP1167743A2 (fr) * 2000-06-21 2002-01-02 Filterwerk Mann + Hummel Gmbh Système d'admission d'air avec séparateur d'eau
EP1201910A2 (fr) * 2000-10-26 2002-05-02 FILTERWERK MANN & HUMMEL GMBH Système d' admission
US20130019833A1 (en) * 2011-07-22 2013-01-24 GM Global Technology Operations LLC Vehicle with variable air intake system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19944287A1 (de) 1998-09-18 2000-03-23 Koito Mfg Co Ltd Fahrzeugleuchte
EP1167743A2 (fr) * 2000-06-21 2002-01-02 Filterwerk Mann + Hummel Gmbh Système d'admission d'air avec séparateur d'eau
EP1201910A2 (fr) * 2000-10-26 2002-05-02 FILTERWERK MANN & HUMMEL GMBH Système d' admission
US20130019833A1 (en) * 2011-07-22 2013-01-24 GM Global Technology Operations LLC Vehicle with variable air intake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113417780A (zh) * 2021-07-28 2021-09-21 徐州徐工挖掘机械有限公司 发动机进气过滤装置自清洁系统及自清洁方法、挖掘机

Also Published As

Publication number Publication date
CZ2013744A3 (cs) 2015-04-08

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