EP0165395B1 - Soupape de régulation pour le circuit du fluide réfrigérant d'un moteur à combustion interne - Google Patents

Soupape de régulation pour le circuit du fluide réfrigérant d'un moteur à combustion interne Download PDF

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Publication number
EP0165395B1
EP0165395B1 EP85104377A EP85104377A EP0165395B1 EP 0165395 B1 EP0165395 B1 EP 0165395B1 EP 85104377 A EP85104377 A EP 85104377A EP 85104377 A EP85104377 A EP 85104377A EP 0165395 B1 EP0165395 B1 EP 0165395B1
Authority
EP
European Patent Office
Prior art keywords
valve
accordance
regulating
regulating device
coolant
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
EP85104377A
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German (de)
English (en)
Other versions
EP0165395A2 (fr
EP0165395A3 (en
Inventor
Roland Dipl.-Ing. Saur
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.)
Behr Thomson Dehnstoffregler GmbH and Co
Original Assignee
Behr Thomson Dehnstoffregler GmbH and Co
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
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Application filed by Behr Thomson Dehnstoffregler GmbH and Co filed Critical Behr Thomson Dehnstoffregler GmbH and Co
Publication of EP0165395A2 publication Critical patent/EP0165395A2/fr
Publication of EP0165395A3 publication Critical patent/EP0165395A3/de
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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
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/13—Ambient temperature
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/40—Oil temperature
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/44—Outlet manifold temperature
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/50—Temperature using two or more temperature sensors
    • 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
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • 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
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • F01P2025/62—Load
    • 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
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • F01P2025/64—Number of revolutions

Definitions

  • the invention relates to a control device for the coolant circuit of an internal combustion engine, in particular a motor vehicle, with a control valve which controls the distribution of the coolant flow from an outlet to an inlet of the internal combustion engine to a cooler arranged between the outlet and the inlet and to a short-circuit line bypassing the cooler regulates and which has two arranged in the coolant flow, axially spaced valve plates, which are assigned to two opposing valve seats and which together with the associated valve seats each control the connection of a valve chamber to the cooler and the short-circuit line, with a common valve carrier provided for both valve plates is, wherein one of the two valve plates is fixedly attached to the valve carrier and is directly loaded with a closing spring, and wherein the valve carrier is connected to an adjusting element, which na ch is led outside from the area of the coolant flow and which is acted upon by a drive element of an actuator which is controlled by a controller evaluating several operating parameters of the internal combustion engine.
  • a thermostatic valve which contains a thermostatic working element is usually provided in the coolant circuit of the internal combustion engines of motor vehicles.
  • the housing of the thermostatic working element contains a temperature-dependent expanding material and serves as a valve carrier, i.e. it is provided with two valve plates, one of which is assigned to the short-circuit line and the other to the connecting line to the cooler.
  • a piston serving as an adjusting element is arranged, which abuts a stationary abutment.
  • the housing of the thermostatic working element is arranged in the coolant flow. If the coolant exceeds a predetermined temperature, the piston is moved out of the housing, whereby the housing together with the valve disks is displaced.
  • a thermostatic valve has a predetermined valve characteristic.
  • the vacuum box is used to return the valve to the position in which it blocks the inlet to the cooler. In this operating state, a temperature of the coolant is reached which is above the usual operating temperature. If a predetermined maximum temperature is exceeded, then the Vacuum box connected to the atmosphere via a thermostatically controlled valve, so that the valve then releases the inlet to the cooler and cooling takes place.
  • the invention has for its object to provide a control device for the cooling water circuit of an internal combustion engine, which is simple, uses as many elements that have been tried and tested in practice and, above all, enables a quick response to a large number of operating parameters.
  • valve carrier and the adjusting element are not movable relative to one another by means of a temperature-dependent expansion material, but are rigidly connected to one another in order to set the valve positions assigned to the operating parameters directly, and in that the adjusting element or the drive element is arranged outside the area of the coolant flow Device for detecting the valve positions and for feedback is assigned to the controller.
  • This configuration creates a control device which contains a control valve, the structure of which essentially corresponds to the structure of a conventional thermostatic valve, but without a thermostatic working element being present.
  • the thermostatic working element which consists of a housing and a working piston which can be extended relative to the housing by means of a temperature-dependent expansion material, is replaced by a valve carrier which is rigidly connected to the adjusting element and which is adjusted directly and exclusively via an actuator.
  • the actuator can or the like depending on various influences of the engine control or engine load. can be controlled, wherein the control valve can be adjusted very quickly, ie the control device enables very fast control cycles.
  • control valve according to the invention Nevertheless, a new design of the overall structure of the control valve is not necessary, since in the control valve according to the invention the structure is essentially realized in accordance with the conventional thermostatic valves. It is therefore also readily possible to install a control device according to the invention in existing cooling circuits of internal combustion engines in order to be able to control them in order to achieve improved combustion.
  • the drawing shows a control device according to the invention with a control valve shown in section.
  • control device shown in the drawing is explained using the example of a so-called distribution control.
  • control device can also be used in a so-called mixed control, in which the structure of the control valve itself is then identical, while only the directions of the coolant flows are somewhat changed.
  • a valve chamber 22 is provided in a housing 17, into which a channel 21 opens, with the outlet of the cooling water supply an internal combustion engine, not shown, is connected.
  • a channel 13 branches off from the valve chamber 22 and leads directly via a short-circuit line (not shown) to the inlet of the cooling water duct of the internal combustion engine.
  • the valve chamber 22 is covered by a housing part 8, which is provided with a connecting piece 9, to which a connecting line leading to a cooler, not shown, is connected, the outlet of which is in turn connected to the inlet of the cooling water duct of the internal combustion engine, not shown. Both the channel 13 and the connecting piece 9 are each assigned a valve.
  • the valve belonging to the connecting piece 9 is formed from a valve plate 5 and a conical valve seat 16 of the housing part 8.
  • the valve assigned to the channel 13 consists of a valve plate 6 and the mouth of this channel 13.
  • the channel 21 opens into the valve chamber 22 between the two valves mentioned.
  • valve disk 5 is firmly pressed onto an annular collar 25 of a valve carrier 1 with a passage.
  • the valve disk 5 is supported with its passage against an axial stop 26 of the valve carrier 1.
  • the valve plate 5 is loaded with a closing spring 12, which is designed as a conical helical spring and the other end of which is supported against an attachment of the housing 17 in the region of the mouth of the channel 13.
  • the closing spring 12 loads the valve plate 5 in the closing direction and presses it against the valve seat 16.
  • the valve plate 6 is guided with a passage on a bolt-shaped extension 23 of the valve carrier 1 with a sliding guide. It is pressed by means of a compression spring 14 against a stop 15 located at the end of the bolt-shaped extension 23.
  • the compression spring surrounds the essentially cylindrical valve carrier 1 and is supported on the annular collar 25, on which the passage of the valve plate 5 is pressed.
  • valve carrier 1 has a shape which corresponds to the shape of the housing of a thermostatic working element of a thermostatic valve. This shape has been chosen in particular to show the corresponding correspondence with a thermostatic valve. Of course, a different design can be selected for the valve carrier 1. in contrast to the housing of a thermostatic working element, it does not absorb any expansion material.
  • a rod 2 is rigidly attached to the valve carrier 1 in the axial extension thereof.
  • the rod 2 penetrates the housing part 8 having the connecting piece 9 in a guide 7 and protrudes outwards from this housing part 8.
  • the guide 7 consists of a bore in the housing part 8 and a screwed-in insert 20.
  • the insert 20 also holds a sealing element 19, in particular an O-ring surrounding the rod 2.
  • a ball 24 is inserted, which is opposite a drive cam 3.
  • the drive cam 3 is arranged on a drive shaft 11 of an electric motor 4, the drive shaft 11 running transversely to the axis of the rod 2 and the valve carrier 1.
  • the cam 3 has an eccentric shape with respect to the drive shaft 11.
  • the electric motor 4, which has, for example, a self-locking gear, is attached to a holder 10 attached to the housing part 8.
  • the electric motor is provided with connections 18, to which a controller 28 is connected, via which the drive of the drive shaft 11 and thus the adjustment of the valve carrier 1 via the drive cam 3 and the Rod 2 is controlled.
  • the controller input is connected to a number of signal transmitters, which are indicated by arrows and which, for example, the coolant temperature, the outside temperature, the load on the internal combustion engine, the torque or the speed of the internal combustion engine, the exhaust gas values and the exhaust gas temperature, the negative pressure in the intake manifold, the oil temperature or the like . Detect and depending on this, regulate the operating temperature of the engine by regulating the cooling in order to optimize the operation of the internal combustion engine. Since the valve carrier 1 with the valve disks 5 and 6 is driven directly by the electric motor 4, this results in fast control with relatively short control cycles.
  • a feedback potentiometer 27 is also connected to the controller 28, which is attached to the outside of the housing 8 and which is adjusted by the part of the rod 2 projecting outwards. This feedback potentiometer 27 reports the respective valve position, ie the position of the valve support 1, to the controller 28. Of course, other devices for reporting the valve position are also possible, for example a rotary potentiometer acting on the drive element 3.
  • actuators which have a translatory movement and transmit this directly to the rod 2.
  • the drive means of the actuator can also be provided instead of the electric motor, for example actuators which have a translatory movement and transmit this directly to the rod 2.
  • the drive cam 3 can be provided with a dovetail-shaped groove following the eccentric cam profile, in which the rod 2 then engages with a hammer-head-like end.
  • a pinion on the drive shaft 11 of the electric motor 4 which engages in a rack-like toothing of the rod.
  • the rod 2 it is possible to provide the rod 2 with a thread in the area lying outside the housing part 8, onto which a nut which is drivable by the actuator and is secured against axial movement is screwed. In this case the rod must be secured against rotation. It is also possible to accommodate translations or reductions in these drive elements.
  • the closing spring 12 can also be omitted.
  • the valve plate 5 is designed as a valve slide, to which a slide valve seat is then assigned. Care must then be taken that sufficient radial guidance is provided for the valve support 1 and the rod 2 if the closing spring 12 is omitted, which can be done, for example, by extending the guide 7.
  • valve plate 6 can also be designed as a valve spool, to which a slide valve seat of the channel 13 is then assigned.
  • the compression spring 14 can also be omitted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)

Claims (12)

  1. Dispositif de régulation pour le circuit de fluide de refroidissement d'un moteur à combustion interne, notamment de véhicule automobile, comprenant une soupape de régulation qui règle la répartition du courant de fluide de refroidissement allant d'une sortie à une entrée du moteur à combustion interne, entre un radiateur intercalé et entre la sortie et l'entrée et une conduite de court-circuit qui évite le radiateur, et qui présente deux plateaux de soupapes (5, 6) placés dans le courant de fluide de refroidissement, agencées à un certain écartement axial, qui sont associés à deux sièges de soupapes (16, 13) mutuellement opposés, et dont chacun, en combinaison avec le siège de soupape respectif, commande la communication entre une chambre de soupape (22) et le radiateur ou la conduite de court-circuit (13), dispositif dans lequel il est prévu un support de soupapes commun (1) pour les deux plateaux de soupapes, l'un (5) des deux plateaux de soupapes étant monté fixe sur le support de soupapes et chargé directement par un ressort de fermeture (12), le support de soupapes (1) étant relié à un élément de manoeuvre (2) qui émerge à l'extérieur de la zone de l'écoulement du fluide de refroidissement et attaque un élément d'entraînement (3) appartenant à un organe actionneur (4) commandé par un régulateur (28) qui exploite plusieurs paramètres de fonctionnement du moteur à combustion interne, caractérisé en ce que le support de soupapes (1) et l'élément de manoeuvre (2) ne se déplacent pas l'un par rapport à l'autre sous l'action d'une substance dilatable sensible à la température mais, au contraire, sont reliés rigidement l'un à l'autre, pour établir directement les positions des soupapes qui sont associées au paramètres de fonctionnement, et en ce qu'un dispositif (27) destiné à capter les positions des soupapes et à les renvoyer en retour au régulateur (28), et disposé à l'extérieur de la zone d'écoulement du fluide de refroidissement, est associé à l'élément de manoeuvre (2) ou à l'élément d'entraînement (3).
  2. Dispositif de régulation selon la revendication 1, caractérisé en ce qu'il est prévu comme éléments de manoeuvre, une tige (2) s'étendant coaxialement aux deux plateaux de soupapes (5, 6).
  3. Dispositif de régulation selon la revendication 2, caractérisé en ce que la tige (2) est guidée dans sa direction axiale dans un guide (7) d'une partie (8) du corps.
  4. Dispositif de régulation selon la revendication 3, caractérisé en ce que la partie (8) du corps est réalisée en une seule pièce avec une tubulure de raccordement (9) pour la conduite de liaison aboutissant au radiateur.
  5. Dispositif de régulation selon la revendication 4, caractérisé en ce que la partie (8) du corps est munie de logements (10) pour le montage de l'organe actionneur (4).
  6. Dispositif de régulation selon une des revendications 1 à 4, caractérisé en ce qu'il est prévu, comme organe actionneur, un moteur électrique (4) dont l'arbre d'entraînement (11) est relié à l'organe de manoeuvre (2) du support de soupapes (1) par l'intermédiaire d'éléments d'entraînement (3) qui transforment un mouvement de rotation en un mouvement de translation.
  7. Dispositif de régulation selon une des revendications 1 à 6, caractérisé en ce qu'il est prévu un ressort de fermeture (12) qui charge le plateau de soupape (5) correspondant à la conduite de liaison (9) dans le sens de la fermeture.
  8. Dispositif de régulation selon une des revendications 1 à 7, caractérisé en ce que le plateau de soupape (6) associé à la conduite de court-circuit (13) est guidé à glissement sur le support de soupapes (1) et est tenu contre une butée (15) au moyen d'un ressort (14).
  9. Dispositif de régulation selon une des revendication 1 à 8, caractérisé en ce que l'élément de manoeuvre (2) est pressé au moyen d'un ressort (12) contre l'élément d'entraînement (3) qui peut se déplacer dans la direction de la manoeuvre.
  10. Dispositif de régulation selon une des revendications 1 à 8, caractérisé en ce qu'il est prévu, entre l'élément de manoeuvre (2) et l'élément d'entraînement (3) qui l'attaque, une liaison opérant par sûreté de forme dans la direction de la manoeuvre.
  11. Dispositif de régulation selon une des revendications 1 à 10, caractérisé en ce que le plateau de soupape correspondant à la conduite de liaison (9) est constitué par un tiroir de soupape auquel est associé un siège de soupape à tiroir.
  12. Dispositif de régulation selon une des revendications 1 à 11, caractérisé en ce que le plateau de soupape correspondant à la conduite de court-circuit (13) est constitué par un tiroir de soupape auquel est associé un siège de soupape à tiroir.
EP85104377A 1984-04-28 1985-04-11 Soupape de régulation pour le circuit du fluide réfrigérant d'un moteur à combustion interne Expired - Lifetime EP0165395B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843415876 DE3415876A1 (de) 1984-04-28 1984-04-28 Regelventil fuer den kuehlmittelkreislauf eines verbrennungsmotors, insbesondere eines kraftfahrzeuges
DE3415876 1984-04-28

Publications (3)

Publication Number Publication Date
EP0165395A2 EP0165395A2 (fr) 1985-12-27
EP0165395A3 EP0165395A3 (en) 1986-06-18
EP0165395B1 true EP0165395B1 (fr) 1994-07-13

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ID=6234587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104377A Expired - Lifetime EP0165395B1 (fr) 1984-04-28 1985-04-11 Soupape de régulation pour le circuit du fluide réfrigérant d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0165395B1 (fr)
DE (2) DE3415876A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613496C2 (de) * 1986-04-22 1995-04-13 Wahler Gmbh & Co Gustav Thermostatventil für das Kühlmittel von Brennkraftmaschinen
DE3727499A1 (de) * 1987-08-18 1989-03-02 Hella Kg Hueck & Co Vorrichtung zum steuern oder regeln der innenraumtemperatur, insbesondere eines kraftfahrzeuges
DE3810174C2 (de) * 1988-03-25 1996-09-19 Hella Kg Hueck & Co Einrichtung zur Regelung der Kühlmitteltemperatur einer Brennkraftmaschine, insbesondere in Kraftfahrzeugen
DE4040323A1 (de) * 1990-12-17 1992-06-25 Volkswagen Ag Thermostatventil fuer die kuehleinrichtung einer brennkraftmaschine
FR2703730B1 (fr) * 1993-04-05 1995-06-23 Vernet Sa Perfectionnements aux circuits de refroidissement à liquide, pour moteurs à combustion interne.
DE29505992U1 (de) * 1995-04-06 1995-06-01 Gustav Wahler Gmbh U. Co, 73730 Esslingen Thermostatventil
DE19728009C2 (de) * 1997-07-01 2003-10-02 Itw Henschel Gmbh Thermostatventil zur Regelung der Temperatur eines Kühlmittels in einem Kühlsystem einer Verbrennungskraftmaschine
KR100330004B1 (ko) * 1998-04-13 2002-05-09 윤종용 디씨 모터를 이용한 유량 조절 밸브
DE19960190A1 (de) * 1999-12-14 2001-07-05 Bosch Gmbh Robert Regelventil
DE10053699B4 (de) * 2000-10-25 2010-11-11 Behr Thermot-Tronik Gmbh Regelventil
FR2955168B1 (fr) * 2010-01-14 2012-02-10 Mann & Hummel Gmbh Vanne de commande pour circuit de circulation de liquide
DE102016205458A1 (de) 2016-04-01 2017-10-05 Mahle International Gmbh Thermostatisches Arbeitselement
DE102016205460A1 (de) 2016-04-01 2017-10-05 Mahle International Gmbh Verfahren zum Herstellen eines thermostatischen Arbeitselements

Citations (1)

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Publication number Priority date Publication date Assignee Title
US4378777A (en) * 1980-08-27 1983-04-05 Toyo Kogyo Co., Ltd. Internal combustion engine having exhaust gas recirculation system

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US2622572A (en) * 1949-11-28 1952-12-23 Daimler Benz Ag Device for the control of the temperature in combustion engines
US2978621A (en) * 1958-09-16 1961-04-04 Pure Oil Co Motor
GB2086536A (en) * 1980-10-28 1982-05-12 Ford Motor Co Thermostat assembly
US4393319A (en) * 1980-12-08 1983-07-12 General Motors Corporation Electric motor powered actuator
JPS58118217U (ja) * 1982-02-04 1983-08-12 日産自動車株式会社 自動車用内燃機関の冷却装置
DE3226104C2 (de) * 1982-07-13 1985-02-07 Behr-Thomson Dehnstoffregler Gmbh, 7014 Kornwestheim Thermostatventil zur Regelung der Temperatur der Kühlflüssigkeit einer Brennkraftmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378777A (en) * 1980-08-27 1983-04-05 Toyo Kogyo Co., Ltd. Internal combustion engine having exhaust gas recirculation system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Messen, Regeln und Steuern in der Lüftungs- und Klimatechnik", O.B. Weber, VDI-Verlag, 1973 *

Also Published As

Publication number Publication date
DE3415876A1 (de) 1985-10-31
EP0165395A2 (fr) 1985-12-27
DE3587877D1 (de) 1994-08-18
EP0165395A3 (en) 1986-06-18

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