EP0001742B1 - Vase d'expansion pour le radiateur de refroidissement d'un moteur à combustion - Google Patents

Vase d'expansion pour le radiateur de refroidissement d'un moteur à combustion Download PDF

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Publication number
EP0001742B1
EP0001742B1 EP78100772A EP78100772A EP0001742B1 EP 0001742 B1 EP0001742 B1 EP 0001742B1 EP 78100772 A EP78100772 A EP 78100772A EP 78100772 A EP78100772 A EP 78100772A EP 0001742 B1 EP0001742 B1 EP 0001742B1
Authority
EP
European Patent Office
Prior art keywords
valve
combustion engine
cooling water
expansion
tube
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
EP78100772A
Other languages
German (de)
English (en)
Other versions
EP0001742A1 (fr
Inventor
Erhard Bartsch
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.)
Iveco Magirus AG
Original Assignee
Magirus Deutz 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 Magirus Deutz AG filed Critical Magirus Deutz AG
Publication of EP0001742A1 publication Critical patent/EP0001742A1/fr
Application granted granted Critical
Publication of EP0001742B1 publication Critical patent/EP0001742B1/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
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices

Definitions

  • the invention relates to a cooling water expansion tank for a water cooler of an internal combustion engine, which can be connected via a compensating line to the water cooler, which has a filler opening which can be closed by a lid and in which a valve which prevents the sudden backflow of cooling water from the water cooler into the expansion tank is arranged.
  • a cooling system for a water-cooled internal combustion engine is known from DE-A-25 31 629, in which an expansion tank is connected directly to a side wall of a cooler via a channel each near the bottom and one in the upper part.
  • a check valve is arranged in each of the channels, the lower valve preventing the backflow of coolant from the cooler into the expansion tank and the upper valve preventing the flow of coolant from the expansion tank into the cooler.
  • a cooler for a water-cooled internal combustion engine is known from US Pat. No. 3,863,690, in which a reservoir is plugged onto the radiator filler neck.
  • the passage opening between the storage container and the cooler is controlled by a valve device which can be opened and closed manually as required from the outside via an actuating rod.
  • the. Valve device designed so that the valve opens the connection to the reservoir and an intermediate overflow line when there is excess pressure in the cooler.
  • the known valve devices have the disadvantage that if the internal combustion engine overheats too much and the resulting excess pressure in the cooling system, a large part of the cooling liquid can escape to the outside via the expansion tank or reservoir. The consequence of this is that after the internal combustion engine has cooled, the cooling system has too little cooling liquid.
  • valve devices each impede the filling of the cooling system with cooling water.
  • the invention has for its object to provide a valve device for a water-cooled internal combustion engine with a water cooler and a surge tank, which prevents overheating of the engine that coolant can flow back from the cooling system into the surge tank or reservoir and on the other hand ensures an undisturbed filling of the cooling system with coolant.
  • the object is achieved in that a tube is attached to the inside of the cover, which extends into the connecting piece of the compensating line, a seal being arranged between the front end of the tube and the compensating line and that in the front end of the Pipe the valve is arranged in a valve chamber which is connected via openings in the pipe to the expansion line and to the expansion tank.
  • valve device according to the invention The disadvantages of the known valve devices are eliminated by the valve device according to the invention.
  • a water-cooled internal combustion engine has cooling water channels for cooling the hot cylinder walls within the machine housing, which are connected to one another via cooling water lines by a water cooler.
  • a surge tank 7 is arranged, which is connected to the water cooler via a surge line, also not shown.
  • the expansion tank 7 has the task of compensating for changes in volume of the cooling water when heating or cooling.
  • the cooling system is filled with coolant via the expansion tank.
  • one or more filling openings 9 are provided on the container, which are closed by a cover 10.
  • the expansion tank 7 has an extension 21 in the bottom 15, to which a connecting piece 17 connects for fastening the compensation line.
  • a tube 19 is attached to the inside of the cover 10, which opens with its front end 20 into the extension 21 and dadei lies tightly on a shoulder 25 of the extension via a seal 24.
  • a valve chamber 22, in which the check valve 13 is accommodated, is provided within the front end of the tube 19. The valve chamber 22 is connected via an opening 23 in the end face of the tube 19 to the connecting piece 17 of the compensating line and via openings 26 to the interior of the compensating container 7.
  • the valve 13 is used to control the backflow of expansion water from the cooling system into the expansion tank 7.
  • the valve 13 opened, ie there is a constant connection between the expansion tank and the cooling system via the openings 23 and 26, so that changes in volume of the cooling water during heating or cooling are constantly compensated for.
  • the connection to the expansion tank 7 is shut off via the valve 13 and thus prevents backflow of expansion water from the cooling circuit into the expansion tank.
  • valve 13 In order to avoid that the filling process is hindered by the valve 13, e.g. characterized in that the valve closes the connection from the expansion tank to the cooling circuit during the filling by rising air bubbles from the cooling system, the valve 13 is removed together with the pipe 19 from the expansion tank 7 by unscrewing the cover 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Temperature-Responsive Valves (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (1)

  1. Réservoir compensateur d'eau de refroidissement (7) pour radiateur de moteur à combustion, prévu pour être raccordé au radiateur par l'intermédiaire d'une conduite de compensation, qui possède un orifice de remplissage (9) pouvant être fermé par un couvercle (10), et dans lequel est disposé un clapet (13) empêchant le reflux subit de l'eau de refroidissement du radiateur vers le réservoir compensateur (7), caractérisé en ce que la paroi intérieure du couvercle (10) porte un tube (19) qui se prolonge jusqu'au manchon de raccordement (17) de la conduit de compensation, un joint d'étachéité (24) étant disposé entre l'extrémité frontale (20) du tube (19) et la conduite de compensation, et que l'extrémité frontale (20) du tube (19) loge le clapet (13) dans une chambre à clapet (22) communicant par des orifices (23, resp. 26) du tube (19) avec la conduite de compensation ainsi qu'avec le réservoir compensateur (7).
EP78100772A 1977-10-29 1978-08-28 Vase d'expansion pour le radiateur de refroidissement d'un moteur à combustion Expired EP0001742B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2748741 1977-10-29
DE19772748741 DE2748741A1 (de) 1977-10-29 1977-10-29 Wassergekuehlte brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0001742A1 EP0001742A1 (fr) 1979-05-16
EP0001742B1 true EP0001742B1 (fr) 1982-03-17

Family

ID=6022686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100772A Expired EP0001742B1 (fr) 1977-10-29 1978-08-28 Vase d'expansion pour le radiateur de refroidissement d'un moteur à combustion

Country Status (2)

Country Link
EP (1) EP0001742B1 (fr)
DE (2) DE2748741A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1295598C (fr) * 1986-07-29 1992-02-11 Makoto Imanari Procede d'elimination des oxydes d'azote dans les gaz d'echappement
DE4315729C2 (de) * 1993-05-11 2000-08-31 Bayerische Motoren Werke Ag Querstromkühler mit integriertem Ausgleichsbehälter
FR2715715B1 (fr) * 1994-01-28 1997-07-04 Radiadores Ordonez Améliorations introduites dans les circuits de dégazage des radiateurs.
CN100362220C (zh) * 2005-11-18 2008-01-16 陈延彬 一种单缸柴油机冷却水箱及其制造工艺
GB2458263A (en) * 2008-03-10 2009-09-16 Ford Global Tech Llc Cooling system expansion tank

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2086441A (en) * 1934-08-25 1937-07-06 Samuel W Rushmore Cooling system for internal combustion engines
US2878794A (en) * 1957-07-29 1959-03-24 Ralph O Stromberg Automobile cooling system
US3132634A (en) * 1962-09-10 1964-05-12 Charles R Butler Cooling system for internal combustion engines
US3863690A (en) * 1973-06-11 1975-02-04 John O Dean Radiator filler
DE2531629A1 (de) * 1974-07-18 1976-01-29 Walter C Avrea Kuehlereinrichtung

Also Published As

Publication number Publication date
DE2861669D1 (en) 1982-04-15
DE2748741A1 (de) 1979-05-03
EP0001742A1 (fr) 1979-05-16

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