EP0658483A1 - Sammeltank für Wärmetauscher für Kraftwagen, mit Belüflungsstopfen - Google Patents

Sammeltank für Wärmetauscher für Kraftwagen, mit Belüflungsstopfen Download PDF

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Publication number
EP0658483A1
EP0658483A1 EP94118345A EP94118345A EP0658483A1 EP 0658483 A1 EP0658483 A1 EP 0658483A1 EP 94118345 A EP94118345 A EP 94118345A EP 94118345 A EP94118345 A EP 94118345A EP 0658483 A1 EP0658483 A1 EP 0658483A1
Authority
EP
European Patent Office
Prior art keywords
plug
tank
hole
collecting tank
breather hole
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.)
Withdrawn
Application number
EP94118345A
Other languages
English (en)
French (fr)
Inventor
Luigi Cristante
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.)
Denso Thermal Systems SpA
Original Assignee
Borletti Climatizzazione SRL
Magneti Marelli Climatizzazione SpA
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 Borletti Climatizzazione SRL, Magneti Marelli Climatizzazione SpA filed Critical Borletti Climatizzazione SRL
Publication of EP0658483A1 publication Critical patent/EP0658483A1/de
Withdrawn legal-status Critical Current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
    • F01P11/0276—Draining or purging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/18—Safety or protection arrangements; Arrangements for preventing malfunction for removing contaminants, e.g. for degassing

Definitions

  • the present invention relates to a collecting tank made of plastics material for heat exchangers for motor-vehicles, provided with a breather hole and a removable plug for closing the hole.
  • the plug is secured in the relative seat, provided in correspondence with the breather hole, by means of a thread.
  • the subject of the present invention is a collecting tank of the type described above, characterised in that, in correspondence with the breather hole, the tank is provided with an annular flange perpendicular to the axis of the breather hole and provided with sloping surfaces for cooperating with anchoring fins on the plug with a substantially L-shaped profile.
  • a collecting tank to be connected to a heat-exchanger network of a motor-vehicle radiator is indicated 1.
  • the collecting tank 1 produced by injection moulding of plastics material, is produced integrally with a support structure 2 for an electric fan associated with the heat exchanger.
  • One of the side walls of the collecting tank 1 has a breather hole 4 enabling the air in the heat-exchanger network to be evacuated when the cooling circuit is filled with the diathermic liquid.
  • the body of the tank 1 has an integral seat 6 for locking a removable plug 8.
  • the seat 6 has an annular flange 10 which is perpendicular to the axis of the breather hole 4.
  • the annular flange 10 is divided into two sectors diametrically opposite two notches 12 which can permit the passage of two diametrically opposite coupling fins 14 (see in, particular Figure 5) provided integrally with the body of the plug 8.
  • the coupling fins 14 of the plug 8 have a generally L-shaped profile and are to cooperate with respective sloping surfaces 16 on the wall of the annular flange 10 opposite the flat surfaces adjoining the inlet of the breather hole 4.
  • the plug 8 has an annular duct 18 on which an elastomeric sealing ring 20 is fitted which, in the mounted configuration of the plug 8, is supported on a shoulder 22 and the circular wall 12' of the seat 6.
  • the plug 8 also has a channel 24 which is to engage a pin 26 adjacent the breather hole 4.
  • the angular width of the channel 24 corresponds to the amplitude of the angular movement necessary for bringing the anchoring fins 14 from the unlocking position, in which they are in correspondence with the notches 12, to the point of maximum thickness of the sloping surfaces 16 which corresponds to the correct locking position of the plug 8.
  • the guide channel 24 is provided integrally with the plug 8 and is provided with a notch 28 which enables the channel 24 to widen slightly and enables it to be fitted on the enlarged head of the pin 26.
  • the system according to the present invention permits a firm closure of the breather hole 4 without having to provide threaded coupling devices between the plug 8 and the tank 1 which create problems from the point of view of cost and complexity of the moulds, as well as requiring maintenance of the movable parts of the moulds for producing these threads.
  • This system further permits the closure to be produced without having to use closure torque wrenches for indicating the correct tightening torque of the plug 8. In fact, when the plug 8 reaches its locking configuration indicated by the pin 26 striking one end of the channel 24, it is certain that the correct axial load on the seal 20 has been reached.
  • a further advantage of the solution according to the invention consists in the fact that, in the unlocking position of the plug 8, the latter is retained by the pin 26; thus it is possible to vent the system without having physically to remove the plug 8 from the hole 4.
EP94118345A 1993-12-17 1994-11-22 Sammeltank für Wärmetauscher für Kraftwagen, mit Belüflungsstopfen Withdrawn EP0658483A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO930272U 1993-12-17
IT93TO000272U IT231542Y1 (it) 1993-12-17 1993-12-17 Vasca collettrice per scambiatori di calore per autoveicoli con tappo di sfiato di tipo perfezionato.

Publications (1)

Publication Number Publication Date
EP0658483A1 true EP0658483A1 (de) 1995-06-21

Family

ID=11411422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118345A Withdrawn EP0658483A1 (de) 1993-12-17 1994-11-22 Sammeltank für Wärmetauscher für Kraftwagen, mit Belüflungsstopfen

Country Status (2)

Country Link
EP (1) EP0658483A1 (de)
IT (1) IT231542Y1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE429952A (de) *
GB659146A (en) * 1949-05-12 1951-10-17 Westwood Rim & Patents Ltd Improvements relating to closure means for vehicle petrol tanks or radiators, and other liquid containers
EP0370234A2 (de) * 1988-11-23 1990-05-30 Reutter Metallwarenfabrik GmbH Kühlerstutzen mit Verschlussdeckel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE429952A (de) *
GB659146A (en) * 1949-05-12 1951-10-17 Westwood Rim & Patents Ltd Improvements relating to closure means for vehicle petrol tanks or radiators, and other liquid containers
EP0370234A2 (de) * 1988-11-23 1990-05-30 Reutter Metallwarenfabrik GmbH Kühlerstutzen mit Verschlussdeckel

Also Published As

Publication number Publication date
IT231542Y1 (it) 1999-08-03
ITTO930272V0 (it) 1993-12-17
ITTO930272U1 (it) 1995-06-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB SE

17P Request for examination filed

Effective date: 19950802

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAGNETI MARELLI CLIMATIZZAZIONE S.R.L.

17Q First examination report despatched

Effective date: 19961008

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970219