EP0189575B1 - Dispositif pour commander l'air de balayage d'un radiateur d'un circuit de refroidissement d'un moteur à combustion interne, notamment pour véhicules automobiles - Google Patents

Dispositif pour commander l'air de balayage d'un radiateur d'un circuit de refroidissement d'un moteur à combustion interne, notamment pour véhicules automobiles Download PDF

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Publication number
EP0189575B1
EP0189575B1 EP85116060A EP85116060A EP0189575B1 EP 0189575 B1 EP0189575 B1 EP 0189575B1 EP 85116060 A EP85116060 A EP 85116060A EP 85116060 A EP85116060 A EP 85116060A EP 0189575 B1 EP0189575 B1 EP 0189575B1
Authority
EP
European Patent Office
Prior art keywords
closure member
cooling air
fan
roller curtain
air
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
Application number
EP85116060A
Other languages
German (de)
English (en)
Other versions
EP0189575A1 (fr
Inventor
Axel Temmesfeld
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0189575A1 publication Critical patent/EP0189575A1/fr
Application granted granted Critical
Publication of EP0189575B1 publication Critical patent/EP0189575B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
    • F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control

Definitions

  • the invention relates to a control device of the type with the features of the preamble of claim 1.
  • a known device of this type according to US-A 1 170 730 has a closure member designed as a flap blind or rotary slide valve and a radiator fan exposed at a distance therefrom in the direction of cooling air flow.
  • the closure member thereby controls the cooling effect of the cooler.
  • the closure member, the radiator fan and the machine are arranged in an open arrangement one behind the other in the cooling air flow direction. Noise from the cooler fan, the machine and its drive connections as well as the heat dissipation of the machine and the cooler can spread on all sides and thereby burden the environment on the one hand and extend the warming up time after the cold start of the machine on the other.
  • DE-C-3 414 609 relates to a device of the type described at the outset, which has pivotable guide vanes for an axial fan as a closure member, which interact with its impeller for the purpose of higher delivery capacity, and in the opposite direction to the position of the guide vanes a closure part for an air outlet opening between the cooler and the axial fan can be actuated.
  • the object of the invention is to develop the control device of the type mentioned at the outset in such a way that the noise and heat radiation from the machine and the radiator fan are reduced.
  • the invention provides the characterizing features of claim 1.
  • the noise and heat radiation when the closure member is closed from a largely sealed sound capsule on all sides when the machine is cold and under part-load operation and thus can be considerably reduced when the noise generation is particularly high, particularly in diesel engines, and high thermal insulation for low wear and low fuel consumption and low emissions of exhaust gas pollutants due to a short warm-up time is particularly advantageous.
  • Due to the additional cooling air outlet opening the noise-reducing effect of the closure element extends beyond the warming-up time of the machine to operating times in which the cooling air delivery is sufficient without the cooler fan, in particular, therefore, at partial load and low ambient temperature.
  • a preferred construction of the closure member contain the features of claim 3, which enable a high sealing effect and smaller dimensions than that of the cooler.
  • the training with the features of claim 5 ensures the function of the device at partial load without special control effort by means of a backflow valve.
  • the operating temperature of the machine can be determined in the usual way with the closure member closed by means of a thermostat regulating the coolant temperature. After the given cooling capacity has been exhausted, the closure member can then be opened by means of a temperature switch controlled by the coolant temperature, by a component temperature of the machine and / or by the air temperature in the engine compartment and, if necessary, the radiator fan can be put into operation together will. Then there is the full cooling capacity and engine compartment ventilation function of conventional radiator-fan arrangements with fan frame and engine compartment noise capsule.
  • an air Liquid cooler 3 In the front part 1 of a motor vehicle, in the cooling air flow direction 2, an air Liquid cooler 3, a closure member for the cooling air designed as a roller blind 4 with a support grid 5, a cooler fan 6 and an internal combustion engine 7.
  • a fan frame 9 connects to the cooling air outlet 8 of the cooler 3 and ends in the cooling air flow direction 2 in a frame ring 10, which surrounds the outer circumference of the fan 6 with a narrow annular gap 11 that is largely free of backflow when the roller blind 4 is closed and thus avoids drive power.
  • the support grille 5 passing through the fan frame 9 is arranged, with which the roller curtain 4 for largely airtight exclusion of a cooling air flow to the fan 6 and thus into the engine compartment 12 and a noise radiation in the opposite direction cooperates from the engine compartment 12 and through the radiator 3 to the environment.
  • the engine compartment 12 is further designed for the latter purpose as a known noise capsule in a manner not shown.
  • the roller blind 4 has a winding roller 13 above the frame ring 10. At least one lower cooling air outlet opening 14 with a backflow flap 15, which opens out into the open, is arranged in the fan frame 9 between the cooler 3 and the rolling curtain 4 or the support grid 5, which enables the cooling effect 3 of the cooler 3 for partial load operation of the machine 7 when the rolling curtain 4 is closed.
  • the warm cooling air flow from the cooler 3 protects the roller blind 4 from freezing and thus ensures its automatically controllable opening when a predetermined operating state of the machine 7 is reached, such as high values of the ambient temperature, the engine compartment temperature, a component temperature, the engine power and / or the coolant temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (5)

1. Dispositif de commande de l'air de refroidissement de moteurs à combustion interne refroidis par un système air-liquide, en particulier de véhicules automobiles, comportant un radiateur (3) air-liquide, un organe de fermeture (rideau roulant 4) de l'air de refroidissement commandé en fonction de la température, et un radiateur (6), qui sont disposés à la suite l'un de l'autre, dans l'ordre ci-dessus, en un canal de l'air de refroidissement (châssis 9), par rapport au carter ou à la chambre (12) du moteur, dans le sens du passage (2) de l'air de refroidissement, pendant que l'organe de fermeture (rideau roulant 4) ferme, quand il est en position de fermeture, les orifices de communication entre la sortie (6) de l'air de refroidissement du radiateur (3), et le carter ou chambre (12) du moteur, dispositif caractérisé en ce que l'organe de fermeture (rideau roulant 4), dans sa position de fermeture, et la partie du canal d'arrivée d'air (châssis 9) qui se raccorde à l'organe de fermeture dans le sens du passage (2) de l'air, sont des parties constituantes du carter ou chambre (12) du moteur, réalisées sous la forme d'un chapeau amortissant le bruit, et qu'il est disposé, dans le canal d'arrivée d'air (châssis 9 du ventilateur) en dehors du chapeau amortissant le bruit, entre le radiateur (3) et l'organe de fermeture (rideau roulant 4), un orifice de sortie (14) de l'air de refroidissement, débouchant vers l'extérieur et se fermant dans le sens inverse par rapport à l'organe de fermeture (rideau roulant 4).
2. Dispositif suivant la revendication 1, caractérisé en ce que l'organe de fermeture (rideau roulant 4) est réalisé dans une très large mesure étanche à l'air, et que le ventilateur (6) comporte un châssis (9). avec une fente annulaire (11) étroite dans une très large mesure exempte de courant en retour sur la circonférence de son rotor.
3. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce que l'organe de fermeture est réalisé sous la forme d'un rideau roulant (4) avec une grille d'appui (5) qui traverse le châssis (9) du ventilateur perpendiculairement à la direction (2) d'écoulement de l'air de refroidissement et contre laquelle s'applique le rideau roulant (4) dans sa position de fermeture, dans le sens (2) du passage de l'air de refroidissement.
4. Dispositif suivant la revendication 3, caractérisé en ce que le châssis (9) du ventilateur comporte une bague annulaire (10) du châssis qui se raccorde directement, dans le sens de l'écoulement (2) de l'air de refroidissement, sur la grille d'appui (5), et que cette grille (5) présente une forme rectangulaire s'étendant au-delà de la bague (10) du châssis, dans les zones à peu près triangulaires desquelles sont disposés, en dehors du châssis (10) annulaire, des orifices (16) de passage de l'air dynamique commandés par le rideau roulant (4) et les clapets (17) de l'air dynamique, dans le châssis (9) du ventilateur.
5. Dispositif suivant l'une des revendications 1 à 4, caractérisé en ce que l'orifice de sortie (14) de l'air de refroidissement, débouchant vers l'extérieur entre le radiateur (3) et l'organe de fermeture (rideau roulant 4) présente un clapet anti-refouleur (15) qui se ferme automatiquement quand l'organe de fermeture (rideau roulant 4) est ouvert et que le ventilateur est en action.
EP85116060A 1984-12-21 1985-12-17 Dispositif pour commander l'air de balayage d'un radiateur d'un circuit de refroidissement d'un moteur à combustion interne, notamment pour véhicules automobiles Expired EP0189575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3446950A DE3446950C1 (de) 1984-12-21 1984-12-21 Steuervorrichtung fuer die Kuehlluft luft-fluessigkeits-gekuehlter Brennkraftmaschinen,insbesondere von Kraftfahrzeugen
DE3446950 1984-12-21

Publications (2)

Publication Number Publication Date
EP0189575A1 EP0189575A1 (fr) 1986-08-06
EP0189575B1 true EP0189575B1 (fr) 1988-03-23

Family

ID=6253580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116060A Expired EP0189575B1 (fr) 1984-12-21 1985-12-17 Dispositif pour commander l'air de balayage d'un radiateur d'un circuit de refroidissement d'un moteur à combustion interne, notamment pour véhicules automobiles

Country Status (6)

Country Link
US (1) US4756279A (fr)
EP (1) EP0189575B1 (fr)
JP (1) JPS62501864A (fr)
DE (2) DE3446950C1 (fr)
ES (1) ES8701624A1 (fr)
WO (1) WO1986003803A1 (fr)

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Also Published As

Publication number Publication date
US4756279A (en) 1988-07-12
JPS62501864A (ja) 1987-07-23
DE3446950C1 (de) 1986-05-22
DE3561967D1 (en) 1988-04-28
EP0189575A1 (fr) 1986-08-06
ES8701624A1 (es) 1986-12-16
ES550189A0 (es) 1986-12-16
WO1986003803A1 (fr) 1986-07-03

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