EP1597461A2 - Circuit de refroidissement pour vehicule automobile, et vehicule automobile correspondant - Google Patents
Circuit de refroidissement pour vehicule automobile, et vehicule automobile correspondantInfo
- Publication number
- EP1597461A2 EP1597461A2 EP04715351A EP04715351A EP1597461A2 EP 1597461 A2 EP1597461 A2 EP 1597461A2 EP 04715351 A EP04715351 A EP 04715351A EP 04715351 A EP04715351 A EP 04715351A EP 1597461 A2 EP1597461 A2 EP 1597461A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- plug
- orifice
- circuit according
- access
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims description 41
- 239000012809 cooling fluid Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002826 coolant Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F01P11/029—Expansion reservoirs
-
- 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
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0247—Safety; Locking against opening
-
- 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
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0238—Closure caps with overpressure valves or vent valves
-
- 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
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0247—Safety; Locking against opening
- F01P2011/0266—Safety; Locking against opening activated by pressure
Definitions
- the present invention relates to a cooling circuit for a motor vehicle, as well as a motor vehicle provided with such a cooling circuit.
- a cooling circuit comprises various pipes, also called hoses, which extend in the vicinity of the engine and of the radiator of the motor vehicle. There is also provided a member allowing selective access to the internal volume of this circuit, so that a user can periodically add coolant.
- the aforementioned member in the form of a plug, which is movable between respective positions of closure and access to this interior volume.
- the plug is fixed to the body of the cooling circuit, for example by screwing or by means of a quick fixing, of the “quarter-turn” type.
- This plug is further provided with a valve allowing the escape of air and water, outside the cooling circuit, when the coolant pressure reaches an abnormally high value, in particular in the event of overheating. It also includes an additional valve, allowing the admission of air, by vacuum, into the cooling circuit.
- the cap mentioned above proves to be particularly dangerous for the driver, when the latter proceeds to open the cap, while the coolant is still at a high temperature. There is then a significant risk of projection of hot liquid, which is expelled from the cooling circuit towards the conductor, under the effect of the pressure.
- the invention proposes to produce a cooling circuit making it possible to remedy the various drawbacks of the prior art mentioned above.
- a cooling circuit for a motor vehicle in particular for an internal combustion motor vehicle, comprising a body comprising at least one pipe intended to extend in the vicinity of the engine and of the radiator of said vehicle, this body having an internal volume for receiving a cooling fluid
- this circuit also comprising a plug for selectively closing an orifice for access to this internal volume, this plug being detachably fixed on the body, as well as means ensuring the exhaust of said coolant, in particular in the event of overpressure, by means of an exhaust orifice, characterized in that the respective orifices for exhaust and for access to the interior volume are distinct and in that a valve is provided, removably attached to the plug, this valve being movable, when it is detached from the plug, between respective positions. are closing and releasing the access orifice, this valve being able to leave its closed position only when the pressure prevailing in the interior volume
- the predetermined pressure is close to atmospheric pressure, in particular slightly higher than the latter;
- the body of the cooling circuit comprises means for supporting the valve, in its release position
- the body of the cooling circuit comprises stop means, capable of opposing a translational movement of the valve, in particular upwards, so as to separate this valve from the plug;
- the plug comprises a body, capable of being attached, in particular by screwing, to the body of the cooling circuit, as well as a gripping shell by a user, which is disengageable relative to the body of the plug;
- the cap is provided with a skirt, capable of being inserted inside a neck of the cooling circuit, sealing means being trapped between the facing walls of this skirt and this neck;
- the removable fixing means of the valve on the plug are fixing means by elastic snap, in particular a pin belonging to the plug, adapted to be fixed by elastic snap in a bottom of the valve;
- the exhaust means comprise an exhaust valve, capable of selectively closing the exhaust port;
- the exhaust port is adapted to direct substantially downwards the cooling fluid expelled from said interior volume
- the body of the cooling circuit includes an expansion tank, the access orifice being provided at the top of this expansion tank, while the exhaust orifice is provided below this tank. 'expansion;
- the atmospheric pressure orifice is provided at the top of the expansion tank, next to the access port.
- the invention also relates to a motor vehicle, in particular an internal combustion vehicle, which is provided with a cooling circuit as defined above.
- FIG. 2 is a sectional view, on a larger scale, illustrating in isolation the plug of the cooling circuit of Figure 1, in a normal operating position;
- FIG. 3 is a sectional view, on a larger scale, illustrating in isolation air intake means, by vacuum, which is provided with the cooling circuit of Figure 1;
- - Figure 4 is a sectional view, similar to Figure 2, partially illustrating the cooling circuit, after removing its plug;
- FIG. 5 is a sectional view, on a larger scale, illustrating in isolation exhaust means, which is provided with the cooling circuit of Figure 1.
- the cooling circuit conventionally comprises several pipes, or hoses, only one of which is shown on this Figure 1, where it is assigned the reference 2. These different hoses extend, in the usual way, in the vicinity of the engine and the radiator of a motor vehicle, which are not shown.
- a connector 4 coaxial with the hose 2 is inserted at the end of the latter. It is hollowed out with a lateral orifice 6, intended for the escape of the fluid admitted into the cooling circuit, as will be seen later.
- This orifice 6 opens into a housing 8, within which is received a valve 10, capable of selectively closing the aforementioned orifice 6.
- This valve is mounted against a spring 12, bearing at one of its ends against a plug 14, which is hollowed out with an opening 16 making it possible to put the housing 8 in communication with the atmosphere.
- the housing 8 extends obliquely, generally downwards. In this way, as will be seen more precisely in what follows, this makes it possible to impart a downward direction to the fluid possibly escaping from the cooling circuit.
- the hose 2 is connected to an expansion vessel 18, of a type known per se, which has a vertical main axis, denoted A.
- This vessel 18 is divided, in its upper part, into a main chamber 20 and a peripheral chamber 22 , which are separated by a vertical annular wall 24.
- the expansion vessel 18 is provided with a threaded neck 26.
- a re-entrant peripheral rim 28 defining an orifice 30 allowing access to the interior volume V of the expansion vessel.
- the expansion vessel 18 is further capped with a stopper, generally designated by the reference 32.
- the latter comprises a threaded body 34, intended to cooperate with the threaded neck 26, as well as an external shell 36, ensuring gripping by a user.
- the body 34 and the shell 36 are such that they give a disengageable nature to the screwing of the cap 32 on the neck 26. This means that, prior to the rotational movement allowing the cap to be unscrewed, the user must carry out a complementary movement. , in this case press down on the shell 36.
- the plug 32 is provided with a skirt 38, having a closed bottom 40, which is provided with a pin 42, the function of which will be explained in the following.
- An O-ring 44 is also trapped between the facing faces of the neck 26 and of the skirt 38.
- a valve 46 is also provided, comprising a core 48, extended by a side wall 50, which is itself terminated by an external flange 52.
- This valve 46 is removably attached to the plug 32, by any suitable means, in the occurrence by elastic snap-fitting of the core 48 on the pin 42.
- the side wall 50 and the flange 52 of the valve 46 are received in a housing 54, defined by an annular part 56, which is fixed to the body of the expansion vessel, in the vicinity of the rim 28.
- This annular part 56 is hollowed out with a light 58, making it possible to put the interior volume V into communication with the access orifice 30.
- the peripheral chamber '22 is communicated at its upper end with an opening 60, defined by a re-entrant rim 62. Above the latter there is provided a stopper 64 hollowed out with an orifice 66, for the placing the interior volume V at atmospheric pressure, as will be seen below.
- This plug is fitted with a valve 68, which selectively closes the orifice 66.
- the latter is mounted against a spring 70, one end of which bears against the abovementioned flange 62.
- FIGS 1 and 2 illustrate the cooling circuit in a normal operating state.
- the valve 10 closes the exhaust orifice 6, while the valve 68 closes the orifice 66 for bringing it to atmospheric pressure and the main plug 32 is screwed onto the neck 26.
- valve 68 When the internal volume V of the expansion vessel 18 is at a pressure significantly lower than atmospheric pressure, the valve 68 tends to move away from its seat, formed on the plug 64. This then releases the orifice 66, from so that outside air can penetrate in the direction of the interior volume V, according to the arrows Fi in FIG. 3, which induces an increase in the internal pressure of the cooling circuit.
- valve 68 can also allow the filling of the cooling circuit by a professional, via the orifice 66. This is advantageous, in terms of simplicity and speed, for the manufacturer who can fill the circuit without removing the plug 32.
- the user decides to remove the cap 32, in order to add coolant, he must first of all press the shell 36 downwards before the actual unscrewing operation. This therefore gives a first degree of security to the cooling circuit of the invention. Then, as this unscrewing progresses, the skirt 38 of the cap 32 rises, opposite the body of the expansion vessel 18. At a given moment of this movement, the flange 52 of the valve 46 abuts against the rim 28, provided on the expansion tank 18, so that it is no longer shown in this figure.
- valve 46 if the pressure prevailing in the interior volume V remains high, the valve 46 is held against the flange 28, precisely under the effect of this pressure. This valve 46 therefore occupies a position for closing the orifice 30, allowing access to the interior volume V.
- valve 46 At the end of its downward movement, the valve 46, which now occupies a position for releasing the orifice 30, rests in abutment against the annular part 56. It should be emphasized that the predetermined pressure value, below which the valve 46 leaves its position for closing the orifice 30, may be different from that mentioned above. Means can thus be provided, for example elastic means, opposing the movement of this valve in one or the other direction.
- valve 68 for bringing to atmospheric pressure can in particular be integrated into the cap 32.
- valve 10 can for example be provided on the body of the expansion tank 18.
- the invention makes it possible to achieve the objectives mentioned above.
- the respective exhaust and access ports to the interior volume are distinct. This therefore makes it possible to close the access orifice by means of a plug, which is able to present a first degree of security for the user. Furthermore, it is possible to arrange the exhaust port, so that any fluid expelled from the cooling circuit is not directed towards the user.
- valve 46 which authorizes access to the interior volume only when the pressure drops below a threshold value, confers an additional degree of security on the cooling circuit of the invention.
- the user cannot add coolant when the internal pressure is likely to affect his physical integrity.
- the main plug 32 provided with a threaded body, can be adapted to already existing cooling circuits. This is particularly advantageous, especially in economic terms.
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)
- Motor Or Generator Cooling System (AREA)
- Closures For Containers (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0302417 | 2003-02-27 | ||
| FR0302417A FR2851786B1 (fr) | 2003-02-27 | 2003-02-27 | Circuit de refroidissement pour vehicule automobile, et vehicule automobile correspondant |
| PCT/FR2004/000456 WO2004077916A2 (fr) | 2003-02-27 | 2004-02-27 | Circuit de refroidissement pour vehicule automobile, et vehicule automobile correspondant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1597461A2 true EP1597461A2 (fr) | 2005-11-23 |
| EP1597461B1 EP1597461B1 (fr) | 2006-12-27 |
Family
ID=32843042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04715351A Expired - Lifetime EP1597461B1 (fr) | 2003-02-27 | 2004-02-27 | Circuit de refroidissement pour vehicule automobile, et vehicule automobile correspondant |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7441517B2 (fr) |
| EP (1) | EP1597461B1 (fr) |
| CA (1) | CA2517165C (fr) |
| DE (1) | DE602004003915T2 (fr) |
| ES (1) | ES2279352T3 (fr) |
| FR (1) | FR2851786B1 (fr) |
| WO (1) | WO2004077916A2 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2913456B1 (fr) * | 2007-03-08 | 2009-04-10 | Itw Bailly Comte Soc Par Actio | Reservoir de degazage pour circuit de refroidissement, circuit de refroidissement et vehicule automobile correspondants |
| DE102007042050A1 (de) * | 2007-09-05 | 2009-03-12 | Behr Gmbh & Co. Kg | Ausgleichsbehälter, insbesondere für Kühlmittel eines Kühlsystems |
| GB2458263A (en) * | 2008-03-10 | 2009-09-16 | Ford Global Tech Llc | Cooling system expansion tank |
| GB2458264A (en) | 2008-03-10 | 2009-09-16 | Ford Global Tech Llc | Flow restrictor for use in the cooling system of an i.c. engine |
| DE202012101545U1 (de) * | 2011-10-10 | 2013-01-17 | Dieter Bächle | Verschlussdeckel zum Verschließen einer Kontrollöffnung an einem Kunststoff-Abgasrohr und System mit einem Verschlussdeckel |
| RU168690U1 (ru) * | 2016-08-05 | 2017-02-15 | Общество с ограниченной ответственностью "АЛЬСТОМ Атомэнергомаш "( ООО "ААЭМ ") | Дыхательное устройство расширительного бака |
| FR3103474A1 (fr) * | 2019-11-21 | 2021-05-28 | Psa Automobiles Sa | Systeme de securite pour l’ouverture d’un conteneur par un bouchon en translation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995452A (en) * | 1981-09-18 | 1991-02-26 | Minnesota Mining And Manufacturing Company | Filter-conditioner for motor cooling liquid |
| US4489883A (en) * | 1984-01-19 | 1984-12-25 | General Motors Corporation | Temperature regulated dual pressure device |
| SU1178916A1 (ru) * | 1984-03-05 | 1985-09-15 | Всесоюзный Научно-Исследовательский Институт По Охране Труда В Сельском Хозяйстве | Радиатор двигател внутреннего сгорани |
| US5279025A (en) * | 1990-07-13 | 1994-01-18 | Kinast Leonard L | Method of securing a cap assembly to a radiator |
| FR2741133B1 (fr) * | 1995-11-15 | 1997-12-12 | Journee Paul Sa | Bouchon perfectionne pour un circuit de refroidissement de vehicule automobile |
| WO1999010636A1 (fr) * | 1997-08-21 | 1999-03-04 | Tesma International Inc. | Ensemble bouchon pour recipient refrigerant |
| CA2383856A1 (fr) * | 2001-04-27 | 2002-10-27 | Bombardier, Inc. | Reservoir a fluide |
-
2003
- 2003-02-27 FR FR0302417A patent/FR2851786B1/fr not_active Expired - Fee Related
-
2004
- 2004-02-27 CA CA002517165A patent/CA2517165C/fr not_active Expired - Fee Related
- 2004-02-27 DE DE602004003915T patent/DE602004003915T2/de not_active Expired - Lifetime
- 2004-02-27 US US10/546,044 patent/US7441517B2/en not_active Expired - Fee Related
- 2004-02-27 WO PCT/FR2004/000456 patent/WO2004077916A2/fr not_active Ceased
- 2004-02-27 EP EP04715351A patent/EP1597461B1/fr not_active Expired - Lifetime
- 2004-02-27 ES ES04715351T patent/ES2279352T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004077916A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2517165C (fr) | 2009-04-28 |
| US20060090713A1 (en) | 2006-05-04 |
| WO2004077916A2 (fr) | 2004-09-16 |
| DE602004003915D1 (de) | 2007-02-08 |
| US7441517B2 (en) | 2008-10-28 |
| WO2004077916A3 (fr) | 2004-10-14 |
| ES2279352T3 (es) | 2007-08-16 |
| EP1597461B1 (fr) | 2006-12-27 |
| CA2517165A1 (fr) | 2004-09-16 |
| FR2851786B1 (fr) | 2005-04-15 |
| FR2851786A1 (fr) | 2004-09-03 |
| DE602004003915T2 (de) | 2007-10-18 |
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