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
  • F02M35/02—Air cleaners
  • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
  • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
  • F02M35/0203—Manufacturing or assembling; Materials for air cleaner housings by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges
• • 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
  • F02M35/02—Air cleaners
  • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
  • F02M35/088—Water, snow or ice proofing; Separation or drainage of water, snow or ice
• • 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
  • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements

Definitions

• the present invention relates to an air intake duct to a motor vehicle engine.
• the invention relates more particularly to a device for filtering snow in said air intake duct.
• the invention also relates to engines and motor vehicles equipped with such air intake ducts.
• Another disadvantage of the accumulation of snow in the air duct is that during operation of the engine, said duct being disposed substantially close to the engine and therefore exposed to the engine temperature, the accumulated snow melts and must be evacuated. If the liquid from melting snow remains in the when the vehicle is stopped, always in cold weather, it will turn into ice and partly obstruct the passage section of the air duct, which affects the cold starts of the vehicle.
• the publication FR-A1-2 985 784 discloses an air intake system for supplying a heat engine or internal combustion engine comprising a duct arranged horizontally and comprising an air intake orifice, an intake orifice to the motor and an evacuation port controlled by a movable valve between an open position and a closed position. Said valve is adapted to allow the open position under the effect of the pressure of a fluid entering the conduit during the rolling of the vehicle. The air mixed with the snow can therefore during the runway penetrate through the exhaust port and disrupt the operation of the engine.
• Another disadvantage is the clutter of the engine compartment which causes a difficulty in having the devices to conduct the air and accessibility problems to the vehicle components, including wear members such as light bulbs of lighthouses. Indeed, it is necessary to easily change the bulbs out of service headlights without removing all or part of a device.
• An object of the invention is to overcome these drawbacks and the subject of the invention is an air intake device for an internal combustion engine of a motor vehicle adapted to filter and evacuate the snow admitted into the vehicle. said device, comprising easily removable elements. Said device is also easy to manufacture and inexpensive.
• the subject of the invention is characterized more particularly in that the air intake device comprises a supply duct comprising:
• a settling element intended for separation between the snow and the intake air
• an intake element disposed downstream of the settling element in the direction of flow of the air and intended to connect the supply duct to the air circuit of the engine, characterized in that the element of intake comprises a lid adapted to hang against a sole by means of quick locking.
• each of the elements of the air supply duct has a specific function as for the admission of air into the air circuit of the vehicle, each of the functions being optimized separately.
• the manufacture is simple and inexpensive.
• the intake element comprises a cover which clings against a sole fixed to a vehicle element by fixing points defined in said soleplate.
• the quick locking means of the intake element allow easy assembly and disassembly of the cover of the intake element and free up a large space in order to quickly and easily access the wear members of the vehicle such as the light bulbs.
• the cover is able to slide against the sole before locking on said sole or after unlocking said sole.
• the sliding of the cover against the sole requires little space and therefore allows easy locking of said cover on the sole or after unlocking said sole easy disassembly of the cover.
• the sole and the cover are assembled to form an oblong accumulation chamber and disposed substantially orthogonal to the plane of the vehicle.
• the shape of the accumulation chamber and its vertical positioning, orthogonal to the plane of the vehicle makes it possible to ensure that said chamber is not congested by a possible deposit of snow.
• the snow or the water deposited on the walls of the accumulation chamber is driven by gravity towards the settling chamber connected with the accumulation chamber and arranged at the bottom of the accumulation chamber.
• the volume of air in the chamber then allows starting in cold weather and then the melting of snow in the supply duct.
• the volume of the accumulation chamber is greater than 1.5 liters.
• the volume of air ensures the engine starts in cold weather.
• the supply duct comprises an air inlet element disposed upstream of the decanting element and having a portion substantially orthogonal to the plane of the vehicle intended to prepare the separation between the snow and the intake air.
• the portion of the input element substantially orthogonal to the plane of the vehicle defined by the longitudinal axis connecting the front to the rear of the vehicle and the transverse axis substantially parallel to the axis of the axles of the vehicle leads the air in a substantially vertical direction from top to bottom, which makes it possible to prepare the separation of snow particles from the air, said particles being heavier than air.
• the decanting element comprises an oblong portion surrounding a settling chamber, intended to be mounted parallel to the plane of the vehicle
• the settling element comprises an oblong portion and substantially parallel to the plane of the vehicle once the mounted device in the engine compartment to allow more efficient separation of snow and air. Indeed, the speed of air flow with the snow particles is relatively low and the snow under the action of its weight is caused to fall and to separate from the intake air.
• the sole extends from the oblong portion of the settling element orthogonally to said oblong portion and to the plane of the vehicle.
• the sole is part of the decanting element and is attached to a wall element of the motor which allows a fixing of the decanting element at several points on a wall element motor as well as a simple connection between the settling element and the intake element. Indeed, the cover of the intake element is simply locked on said sole.
• the settling element comprises an evacuation hatch for the evacuation of the snow, movable between a sealed closed position and an open position allowing the evacuation of fluid accumulated in the settling chamber, and whose opening / closure is controlled by elastic means.
• the escape hatch allows the extraction of snow from the supply duct.
• the snow can be transformed into water under the effect of heat from the engine and flow through the hatch outside the duct.
• the elastic means allows automatic closing after opening the hatch for evacuation of snow.
• the elastic means maintains in normal operation the shutter closed so that the intake air passes through the inlet duct.
• the elastic means is adapted to allow the opening of the evacuation door beyond a pressure threshold in the settling element.
• the elastic means holds the hatch in the closed position during normal operation, which ensures the flow of the intake air from the input element to the intake opening. Then, when the settling element of the feed conduit is substantially plugged by the accumulated and melted snow and the water level resulting from said slush is above a threshold associated with the triggering of the elastic means, the means elastic allows an opening of the hatch, which allows to evacuate the snow deposited in the settling element. the air intake, settling and intake elements are connected to each other in a sealed manner.
• the three elements can be manufactured separately and therefore inexpensive.
• FIG. 1 is a schematic view of the supply duct of air composed of three elements.
• FIG. 2 is a sectional view of the air supply duct with the air circulation.
• FIG. 3 is a schematic view of the inlet element of the air supply duct.
• FIG. 4 is a schematic view of the decanting element of the air supply duct.
• FIG. 5 is a schematic view of the intake element of the air supply duct.
• FIG. 6 is a schematic view of the intake element with the chamber.
• the following descriptions refer to the plane of the vehicle defined by the longitudinal axis connecting the front to the rear of the vehicle and the transverse axis parallel to the axis of the axles of the vehicle wheels.
• the device 1 according to the invention is intended to be mounted in a motor compartment of the motor vehicle preferably near the engine.
• the air intake device 1 comprises an air supply duct 2 comprising three elements: a first inlet element 10, a second settling element And a third intake member 30 to an air circuit for a motor vehicle internal combustion engine (not shown).
• the inlet member 10 is substantially tubular and has a preferably rectangular air passage section.
• the input element comprises an opening 14 protected by a filtering means 1 1 and preferably directed towards the front face of the vehicle.
• the filtering means can be as in the representation of Figure 3 a grid having bars to prevent the intrusion into the supply conduit of substantially bulky objects.
• the input element 10 comprises an elongated or oblong portion 12 intended to be orthogonal to the plane of the vehicle that is to say vertically once the device mounted in the engine compartment of the vehicle. Said oblong portion 12 thus conducts fresh air from top to bottom and the unevenness allows, depending on the difference in densities between the snow and the air, to prepare the separation of the snow particles from the intake air.
• the difference in level is of the order of 10 cms.
• the oblong portion 12 is preferably extended by an end portion 13 substantially orthogonal to the axis of said oblong portion and adapted to be connected to the settling element 20.
• the settling element 20 comprises an elongate or oblong portion 21 surrounding a settling chamber 21c extending substantially parallel to the plane of the vehicle, for example along the longitudinal axis of the vehicle when the device is mounted in the engine compartment of said vehicle.
• the length of this oblong portion 21 is of the order of 20 cms.
• Said oblong portion 21 comprises at its downstream end 28b opposite the end 28a connected with the input element 10, an opening or flap 22 controlled by a movable flap 28c to allow the release or closure of the hatch 22.
• the valve is pivotally movable about an axis transverse to the axis of the oblong portion and controlled by an elastic means 29 adapted to hold the valve 28c in the closed position leakproof in normal operation to prevent pressure losses in the flow of intake air.
• the intake air follows the path from the opening 14 of the input element 10 to the opening 24 connected with the engine air circuit passing through the element. decantation 20 to be cleared of snow particles.
• the elastic means 29 allows a pivoting of said valve 28c causing the connection of the settling chamber 21c with the outside from a pressure threshold. This pressure threshold takes into account, for example, the level of water from slush which may be of the order of 10 mm.
• the snow deposited and accumulated in the settling chamber 21c heated by the engine in operation turns into water and said mass of accumulated water presses on the wall of the valve.
• the elastic means 29 allows the valve to pivot towards the open position for allow the escape of this accumulated water.
• the settling element 20 comprises an end portion at the downstream end of the oblong portion 21 which is preferably extended orthogonally to the axis of the oblong portion 21 by a sole 23 adapted to be connected to the element of FIG. admission 30.
• Said sole 23 of the settling element has a substantially flat wall and adapted to be fixed to a vehicle element. Indeed, said sole comprises fixing holes 27 to be traversed by fixing screws which are then driven into fixing holes in the vehicle element (not shown).
• Said sole 23 has the opening 24 opening in the engine air intake circuit (not shown).
• Said flange 23 extends orthogonal to the axis of the settling chamber 21 of the settling element and the plane of the vehicle and the periphery of said soleplate is preferably surrounded by a seal a Vogellic (not shown )
• the inlet member 30 has a lid 31 shaped half-shell substantially oblong or elongated.
• the periphery 34 of this lid is complementary to the periphery of the sole 23 of the settling element 20.
• the cover 31 and said sole 23 then surround an accumulation chamber 35 which allows on the one hand a regular supply of air for the operation of the engine and on the other hand to prevent any risk of blockage of the passage section of air by snow or water or ice accumulated, which makes reliable cold starts.
• the cover 31 comprises means for rapid locking / unlocking of the lid 31 resting on the soleplate 23.
• Said means are for example elastic hooks (not shown) fixed at one end to the cover 31 and now engaged around the sole 23 by the second end.
• the sole 23 of the settling element 20 has on its periphery first ears 25 having orifices arranged substantially orthogonal to the plane of the sole and the second ears 26 also having an orifice extending from a part of the periphery of the sole parallel to the plane of the sole.
• the cover 31 of the intake element 30 has lugs 32, 33 at its periphery 34 intended to pass through the orifices of the first and second lugs 25, 26. To fix the lid against said soleplate, the lid is moved in sliding on a short distance along an axis transverse to the axis of the oblong cover.
• the first lugs 32 pass through the orifices of the first lugs 25 and then the second lugs 33 penetrate into the orifices of the second lugs 26 to secure the lid 31 against the sole 23.
• the volume of the accumulation chamber 35 is of the order of 2 liters and preferably greater than 1.5 liters in order to ensure the admission of air into the chamber. engine for optimal operation of this engine, especially during cold starts.
• the shape of the elongate cover surrounding the accumulation chamber and the arrangement of the intake element orthogonally to the plane of the vehicle once mounted in the vehicle makes it possible to have no accumulation of snow or ice water on the walls which can then alter the operation of the engine.
• the water is driven by gravity into the settling chamber 21c and then discharged outside this chamber when the water level threshold is reached.
• the volume of the chamber is adapted to guarantee at least cold starts without incident due to the accumulation of snow. In addition, said volume is obtained by calculation and by tests to obtain optimum operation of the engine.
• the three elements 10, 20, 30 are connected to each other successively in a sealed manner via, for example, a Vogellic joints (not shown) arranged at the connection portions.
• the inlet element 10 is thus fitted into the decanting element 20.
• the decanting element 20 is fixed on a vehicle element. Then the cover 31 of the intake element 30 is locked against the sole 23 of the settling element 20.
• the device 1 is arranged in the engine compartment near the engine with the inlet grille 1 1 of the input element 10 preferably facing the front of the vehicle.
• the inlet element 10 and the settling element 20 may be composed of two complementary parts and said parts and the cover 31 of the inlet element 30 are preferably made of plastic obtained by molding.
• the cover 31 of the intake element 30 can be detached from the sole 23 in a simple manner and deposited to clear an important access space .
• the settling element 20 is also arranged lower than the headlight or bodywork elements to be reached.
• the input member may be offset from the axis of the settling member and the opening 14 is not impeded by a body member. Thus after removing the cover of the intake element, accessibility to the headlight elements is easy.
• the air intake device makes it possible to filter and evacuate the snow mixed with the air
• the device further comprises elements comprising parts of simple pieces of shape and little expensive to manufacture.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=49667346

Family Applications (1)

Country Status (4)

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Family Cites Families (8)

• 2013
  • 2013-08-23 FR FR1358142A patent/FR3009846B1/fr not_active Expired - Fee Related
• 2014
  • 2014-06-18 EP EP14738878.9A patent/EP3036424B1/de active Active
  • 2014-06-18 WO PCT/FR2014/051509 patent/WO2015025088A1/fr active Application Filing
  • 2014-06-18 RU RU2016110591A patent/RU2673979C2/ru active

Non-Patent Citations (2)

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