EP0107587B1 - Steuerungsvorrichtung für Kühlungsventilator - Google Patents

Steuerungsvorrichtung für Kühlungsventilator Download PDF

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Publication number
EP0107587B1
EP0107587B1 EP19830402020 EP83402020A EP0107587B1 EP 0107587 B1 EP0107587 B1 EP 0107587B1 EP 19830402020 EP19830402020 EP 19830402020 EP 83402020 A EP83402020 A EP 83402020A EP 0107587 B1 EP0107587 B1 EP 0107587B1
Authority
EP
European Patent Office
Prior art keywords
pressure
cooling fluid
relay coil
predetermined value
fan
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
EP19830402020
Other languages
English (en)
French (fr)
Other versions
EP0107587A1 (de
Inventor
Christian Galopin
Joel Leseigneur
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.)
Renault SA
Original Assignee
Regie Nationale des Usines Renault
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 Regie Nationale des Usines Renault filed Critical Regie Nationale des Usines Renault
Publication of EP0107587A1 publication Critical patent/EP0107587A1/de
Application granted granted Critical
Publication of EP0107587B1 publication Critical patent/EP0107587B1/de
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
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
    • 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
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level

Definitions

  • the invention relates to a device for controlling the operation of a motor-driven fan unit intended to cool an internal combustion engine, in particular during an engine stop after a strong heating.
  • French patent FR-A-1 553 341 describes a control device for a cooling fan driven by an electric motor, of the type comprising a relay coil which, when energized, serves to actuate said fan by a movable contact , and a temperature probe connected to said coil and to a general contactor, reacting to the temperature of the cooling fluid circulating in a radiator when the latter exceeds a predetermined value, to excite the relay coil.
  • a percolation phenomenon linked to the temperature under the hood causes vaporization of the fuel during stopping, which causes very long starting times of the engine by default of refueling of the engine.
  • the present invention aims to remedy this drawback by reducing the temperature of the gasoline in the carburetor as well as that of the air at the inlet of the latter.
  • a control device for a cooling fan driven by an electric motor of the type comprising a relay coil which, when energized, serves to actuate a fan by a movable contact, and a temperature probe. connected to this coil and to a general contactor, reacting to the temperature of the cooling fluid circulating in a radiator when the latter exceeds a predetermined value to excite the relay coil.
  • this control device comprises additional means sensitive to the pressure of the coolant which are connected on the one hand, to the positive terminal of a storage battery and on the other hand, to the coil of relay so as to excite it when the pressure of the coolant exceeds a first predetermined value and until this pressure reaches a second predetermined lower value.
  • these additional means consist of a pressure switch connected to the cooling fluid of a pipe placed between an expansion tank and the radiator, and adjusted to these first and second values predetermined pressure.
  • the technical characteristics of the invention define a very simple fan control device which makes it possible to avoid the phenomenon of percolation during an engine stop after a strong heating by reducing the temperature of the petrol in the carburetor and that of the air at the inlet of the latter by the actuation of the fan.
  • a fan control device 1 driven by an electric motor essentially comprises a relay coil 2 having a movable contact 4, a temperature probe 6 sensitive to the temperature of the cooling water circulating in the radiator and a pressure switch 10 sensitive to the pressure of the cooling water.
  • This pressure switch 10 is connected to the cooling water of a pipe 12 placed between an expansion tank 14 and the radiator 8; it is connected on the one hand, to the positive terminal of a storage battery 16 and on the other hand, to the relay coil 2.
  • the temperature probe 6 is connected on the one hand, to the coil 2 and on the other hand, to the general contactor 18.
  • This variation in the pressure of the cooling water is thus used according to the invention to control the motor-fan unit 1 via the pressure switch 10.
  • the water pressure continues to increase slightly to gradually decrease until a predetermined value P 3 at time t 3 when the pressure switch 10 ceases to energize the coil 2 and cuts off the supply to the motor-fan unit 1.
  • the operating time t 3 -t 2 of the motor-fan unit 1 controlled by the water pressure after the engine has stopped is therefore linked to the adjustable characteristics of the pressure switch 10 relating to the opening and closing of the circuit. on which it is placed.
  • the control device for cooling fans according to the invention thus makes it possible to avoid the phenomenon of percolation following a strong heating during an engine stop; it can also be used whenever it is necessary to control an accessory after stopping an engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Claims (2)

1. Steuerungsvorrichtung für einen Kühlungsventilator (1), der von einem Elektromotor angetrieben ist und die eine Relais-Spule (2) aufweist, die, wenn sie erregt ist, zur Betätigung des Ventilators (1) mittels eines beweglichen Kontaktes (4) dient und mit einem Temperaturfühler (6), der mit der Spule (2) und einem Schalter (18) verbunden ist und der auf die Temperatur des in einem Kühler (8) zirkulierenden Kühlfluids anspricht, wenn dieses einen vorgegebenen Wert überschreitet um die Relais-Spule (2) zu erregen, dadurch gekennzeichnet, daß die Vorrichtung eine zusätzliche Anordnung aufweist, die auf den Druck des Kühlfluids anspricht, wobei sie einerseits mit dem positiven Pol eines Akkumulators (16) verbunden ist und andererseits mit der Relais-Spule (2) derart verbunden ist, daß sie diese erregt, wenn der Druck des Kühlfluids einen vorgegebenen ersten Wert (P2) überschreitet, bis dieser Druck einen zweiten kleineren vorgegebenen Wert (P3) erreicht.
2. Steuerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zusätzliche Anordnung aus einem Druckschalter (10) besteht, der mit dem Kühlfluid mittels einer Leitung (12) in Verbindung steht, die zwischen einem Ausdehnungsgefäß (14) und dem Kühler (8) angeschlossen ist und der auf den ersten und zweiten vorgegebenen Druckwert einstellbar ist.
EP19830402020 1982-10-19 1983-10-18 Steuerungsvorrichtung für Kühlungsventilator Expired EP0107587B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217446 1982-10-19
FR8217446A FR2534640A1 (fr) 1982-10-19 1982-10-19 Dispositif de commande pour ventilateurs de refroidissement

Publications (2)

Publication Number Publication Date
EP0107587A1 EP0107587A1 (de) 1984-05-02
EP0107587B1 true EP0107587B1 (de) 1986-04-16

Family

ID=9278378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830402020 Expired EP0107587B1 (de) 1982-10-19 1983-10-18 Steuerungsvorrichtung für Kühlungsventilator

Country Status (4)

Country Link
EP (1) EP0107587B1 (de)
DE (1) DE3363086D1 (de)
ES (1) ES526429A0 (de)
FR (1) FR2534640A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7332454B2 (en) * 2005-03-16 2008-02-19 Sud-Chemie Inc. Oxidation catalyst on a substrate utilized for the purification of exhaust gases

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533156A (en) * 1944-10-31 1950-12-05 United Aircraft Corp Control of engine cylinder temperatures
GB1155225A (en) * 1967-01-28 1969-06-18 Lancia Automobili Motor-Driven Fan Unit for Internal Combustion Engines.
FR1553341A (de) * 1967-01-28 1969-01-10
US4312379A (en) * 1978-02-16 1982-01-26 Trw Inc. Pressure actuated multiway valve

Also Published As

Publication number Publication date
ES8405902A1 (es) 1984-06-16
DE3363086D1 (en) 1986-05-22
EP0107587A1 (de) 1984-05-02
ES526429A0 (es) 1984-06-16
FR2534640A1 (fr) 1984-04-20
FR2534640B1 (de) 1984-12-14

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