DE4410120A1 - Air conditioning for a motor vehicle - Google Patents

Air conditioning for a motor vehicle

Info

Publication number
DE4410120A1
DE4410120A1 DE4410120A DE4410120A DE4410120A1 DE 4410120 A1 DE4410120 A1 DE 4410120A1 DE 4410120 A DE4410120 A DE 4410120A DE 4410120 A DE4410120 A DE 4410120A DE 4410120 A1 DE4410120 A1 DE 4410120A1
Authority
DE
Germany
Prior art keywords
air conditioning
characterized
conditioning system
system according
radiator
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
Application number
DE4410120A
Other languages
German (de)
Other versions
DE4410120C2 (en
Inventor
Wolfgang Kniele
Klaus-Dieter Knoeppel
Michael Komowski
Ingo Dipl Ing Putz
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Mahle Behr GmbH and Co KG
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
Priority to DE9308019U priority Critical patent/DE9308019U1/de
Application filed by Behr GmbH and Co KG, Mahle Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Priority to DE4410120A priority patent/DE4410120C2/en
Priority claimed from GB9409492A external-priority patent/GB2279143B/en
Publication of DE4410120A1 publication Critical patent/DE4410120A1/en
Application granted granted Critical
Publication of DE4410120C2 publication Critical patent/DE4410120C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3233Cooling devices characterised by condensed liquid drainage means

Abstract

A housing 1 for a motor vehicle heating and air conditioning system having a refrigerant evaporator 7 and an air-heating radiator 8 has an outlet opening for discharging water condensing in the evaporator and scattered through the housing interior by air flow. The base of the housing has a duct 12 which extends below the evaporator 7 and the radiator 8 and which comprises at least two inlet openings of which one opening 13 is disposed below the evaporator and one opening 16 is disposed at the lowest point below the radiator, this duct leading to an outlet opening 14. <IMAGE>

Description

The invention relates to an air conditioning system for a motor vehicle stuff with a housing specified in the preamble of claim 1 a genus.

When operating an air conditioning system in the motor vehicle arises from Cooling of the air on the evaporator surfaces condensed water, the abge should be led. There are several dimensions for removing the condensed water took notice, for example, fine-meshed droplet separators and Baffles. The bottom area of the ver steamer housing part designed trough-shaped and with egg Provide a drain to which a molded hose is connected. Such arrangements are for example from DE-U-82 28 162, DE-A- 31 49 252 and DE-C-32 29 866 known.

Because there is less and less installation space for air conditioning in modern vehicles is available and increasingly smaller passenger cars to be equipped with air conditioning is very necessary to construct compact air conditioners, reflecting on the cross sections of the Air flow and the flow velocity of the air are considerable Has an impact. This causes the moisture that accumulates the cold evaporator surfaces and on the outlet side of the evaporator forms water droplets, entrained by the air flow becomes. These meet on a housing wall that deflects the air flow Drops of water run up and run down the housing wall. This yourself Liquid collecting in the housing is, unless it is on ge appropriate way can be derived by evaporation with the  Airflow discharged and leads to fogging of the windows of the Vehicle and thus to a security risk.

It is therefore an object of the present invention to provide an air conditioner was the genus specified in the preamble of claim 1 create with simple means that are in the housing of the Kli measuring system collecting liquid is discharged.

This task is carried out in an air conditioning system of the generic type solved by the characterizing features of claim 1. The we Significant advantage of the invention is the fact that with the An close only one hose line to different Locations of the air conditioner housing drained collected liquid becomes. This results in a particularly quick and good condensation drainage when the channel has a closed cross-sectional shape sits so that there is a suction effect in the channel.

An arrangement in which the channel is on the Underside of the bottom extends and thus on the inner contour of the Housing parts has no influence. An expedient in this regard ßige design is that the channel from a gutter term depression formed on the housing base and a cover strip is. It is considered particularly cost-effective that the groove-like recess is integrally formed on the housing base. As an alternative to this, the channel can also be designed in tubular form and in be made in pieces with the lower housing part.

With inclined radiators is a particularly favorable option design of the system configuration to see that the deepest Point lies in an area close to the evaporator and the two Openings are arranged close together. With air conditioners, with which the radiator is arranged obliquely, but can also the lowest point of the housing is about one below the evaporator distal end of the radiator. So that Condensation in the sewer runs off as quickly as possible and therefore the suction  supported effect, it is appropriate that the channel in the Ab cut between the inlet opening on the evaporator side and the radiator inlet opening extends straight. The heating body-side inlet opening lies between the evaporator side Entrance opening and an Ab provided with a connecting piece barrel opening. Depending on the space available in the vehicle and the result conditional position of the connections, the drain opening or the ent speaking connecting piece provided off-center of the housing who the. Regardless of this, the radiator inlet opening - related to the longitudinal direction of the air conditioner housing - approximately with tig or laterally shifted, it is located but at the lowest point of the housing. The channel section downstream The inlet opening can be stretched, arched or angled his.

As a particularly suitable version of the radiator inlet openings are suggested, these through next to the gutter-like To form recesses arranged recesses, which are connected are connected to the channel-like recess. For best possible use of the suction effect is proposed that the Connection channels substantially parallel to the longitudinal direction of the trough-shaped depression run and at an acute angle flow into the recess.

Another way of designing the radiator side A openings consists of these in the cover strip itself assign. The cover strip is expediently designed to be flat and complements the contour of the base in the lower part of the housing. For fastening supply of the cover strip is proposed, this on the bottom to be provided with at least one projection, which ne into a groove ben of the trough-shaped recess.

An embodiment of the invention is based on the Drawing explained in more detail:  

The drawing shows:

Figure 1 in outline the section through an air conditioning system for a motor vehicle.

Fig. 2 shows a section through the lower part of the housing housing;

Fig. 3 is a view in the direction of arrow III in Fig. 2;

Fig. 4 is a section along line IV-IV in Fig. 3;

Fig. 5 is a section along line VV in Fig. 3;

FIG. 6 shows a detail from FIG. 3 with the cover strip inserted; FIG.

Fig. 7 shows a second embodiment of an air conditioner and

Fig. 8 is an enlarged view of the lower housing part in Fig. 7 with a modified condensate drain.

In Fig. 1 is the section through an air conditioning housing 1 Darge provides, this housing 1 consists mainly of three housing parts, namely a blower housing 2 , an upper housing part 3 and a lower housing part 4th The level of separation between the upper housing part 3 and lower housing part 4 is denoted by 5 in FIG. 1. In the air conditioning housing 1 is adjacent to a diffuser 6 of the blower housing 2, a refrigerant evaporator 7 is arranged, which is acted upon by the total air flow of the blower. In the lower housing part 4 , a radiator 8 through which the engine cools the motor of the motor vehicle is arranged, which - depending on the warm air requirement in the passenger compartment - is acted upon by the air emerging from the refrigerant evaporator 7 and the outflow nozzles 9 are supplied. Due to the inclined arrangement of the radiator 8 , part of the radiator projects beyond the parting plane 5 into the upper housing part 3 .

As a result of the cooling of the air flow in the refrigerant evaporator 7 , the moisture contained in the air flow is reflected on the cool surface of the refrigerant evaporator 7 . This creates water drops on the outflow side of the refrigerant evaporator 7 , which either drip down due to the force of gravity, or - at high air flow velocity - are torn in the direction of the radiator 8 . Since the radiator 8 is arranged in compact air conditioning systems in close proximity to the refrigerant evaporator 7 , a baffle 10 is provided, on which the water drops are directed downwards in order to discharge them from the air conditioning housing 1 . In compact air conditioners and the required high flow rates, it is unavoidable that water drops are entrained on the outlet side of the refrigerant evaporator 7 by the air stream and thrown to the opposite side of the housing upper part 3 or lower housing part 4 and then on the inner wall of the Run down the housing.

The lower housing part 4 is provided on its base 11 with a channel 12 which has an inlet opening 13 adjacent to the refrigerant evaporator 7 . The channel 12 extends under the radiator 8 along the bottom 11 to an outlet opening 14 in a connecting piece 15 . At the lowest point of the bottom 11 below the radiator 8 , an inlet opening 16 to the channel 12 is angeord net through which water, which is entrained by the air stream and collects in the lower housing part 4 , can be removed.

. The Figure 2 shows a section through the housing bottom part 4 without the heat exchangers 7 and 8; however, the receptacles for these heat exchangers are recognizable. It can be seen from this illustration that the channel 12 is formed in one piece with the lower housing part 4 and is designed as a depression 17 in the base 11 . In the manufacture of the lower housing part 4 , the channel 12 is open towards the bottom 11 .

Fig. 3 shows a detail of the view according to arrow III in Fig. 2. shows this view that the channel 12 extends to the right in Fig. 3 side in a sheet 18 to an end-side channel portion 27 at the end thereof then the Drain opening 14 lies within the connecting piece 15 . The evaporator-side inlet opening 13 of the channel 12 can be seen on the left in FIG. 3, as is the baffle 10 . In addition to the channel 12 designed as a channel-like depression 17 , two recesses 19 , 20 are provided, which are each connected via a connecting channel 21 , 22 to the channel 12 . The connec tion channels 21 , 22 extend substantially parallel to the trough-shaped recess 17 and open at an acute angle in this. Due to the direction of flow according to the arrows 23 of the condensed water discharged in the channel 12 , the liquid passing through the inlet openings 16 into the recesses 19 , 20 and connecting channels 21 , 22 is drawn , so that a liquid collecting on the lowest point of the lower housing part 4 is drawn Suction is exerted.

FIGS. 4 and 5 show sections through the channel 12, Figs. 4 5 a section along the line VV in Fig corresponds to a section along the line IV-IV in Fig. 3 and the depiction of FIG.. 3. In Figs. 4 and 5, the channel 12 is provided with a covering strip 24 is provided, so that the closed cross-sectional shape of the channel 12 results. The cover strip 24 is flat and completes the contour of the bottom 11 . The strip 24 has at its edges since union Liche in the direction of the groove-like recess 17 before jumps 25 which engage in grooves 26 next to the groove-shaped recess ( Fig. 5) and are held by clamping force. From the section shown in Fig. 4 it can be seen that in addition to the rinnenarti gene recess 17, the recesses 19 and 20 are arranged, which are not covered by the cover strip, whereby the inlet openings 16 are formed.

FIG. 6 shows a section of FIG. 3, specifically the area in which the inlet openings 16 are located. In Fig. 6, the channel is closed by means of the cover 24 , only the inlet openings 16 remain free, the cross section being dimensioned such that the liquid is reliably sucked out of the housing, but no liquid runs back from the channel into the housing.

In Fig. 7 the section through an air conditioning housing 30 is Darge, this housing 30 being formed from three housing parts 31 , 32 and 33 . The lower housing part 31 essentially receives the lower regions of an evaporator 35 and a radiator 36 . In the upper housing part 32 , a mixing chamber 37 with a tempera turmischklappe 38 is arranged above the radiator 36 . The third housing part 33 forms the receptacle of the upper section of the steamer 35 . Between the housing parts, the separation planes 40 , 41 are selected so that the simplest possible shape of the tools for producing the housing parts 31 , 32 and 33 is achieved.

The lower housing part 31 is provided on its bottom 34 with a channel 39 which extends below the evaporator 35 of the radiator 36 . This channel 39 begins at an input opening 45 un below the radiator 36 and leads to a connecting piece 47 with a drain opening 44 , from which the condensate is passed on. In this channel 39 , an inlet opening 42 is provided, which is located below the evaporator 35 and through which the condensate dripping from the evaporator 35 is supplied to the channel 39 . The channel 39 is tubular and integrally formed with the lower housing part 31 un.

Fig. 8 shows the lower housing part 31 with a modified execution of the channel 39 , which leads to the drain opening 44 . The radiator 36 is located on the side brackets 43 of the lower housing part 31 , so that the water is not only discharged from the front of the heating element 36 and fed to the bottom 34 of the lower housing part 31 , but can also emerge directly on the narrow side 36 'of the heating element 36 , as can be done with the arrow 46 is shown. Thus, the inlet opening 45 and the inlet opening 42 are close together.

In Figs. 7 and 8 of the channel is shown to extend with a slight inclination. 39 However, the concept of the invention also includes embodiments in which the channel has a different direction, for example an initially vertical section, to which a further section can optionally be connected in any direction.

Claims (17)

1. Air conditioning system for a motor vehicle with a housing ( 1 , 30 ) in which a refrigerant evaporator ( 7 , 35 ) and a radiator ( 8 , 36 ) are arranged, wherein in the housing ( 1 , 30 ) a drain opening ( 14 , 44 ) is provided for discharging water condensing in the evaporator ( 7 , 35 ), characterized in that a channel ( 12 , 39 ) is provided on the bottom ( 11 , 34 ) of the housing ( 1 , 4 , 30 ) Area below the Ver evaporator ( 7 , 35 ) and / or the radiator ( 8 , 36 ), and the at least one first opening ( 13 , 42 ) near the Ver evaporator ( 7 , 35 ), and at least a second opening ( 16 , 45 ) at the lowest point below the radiator ( 8 , 36 ) and leads to the drain opening ( 14 , 44 ).
2. Air conditioning system according to claim 1, characterized in that the channel ( 12 , 39 ) has a closed cross-sectional shape.
3. Air conditioning system according to claim 1 or 2, characterized in that the first opening as an inlet opening ( 13 ) below the evaporator ( 7 ) and the second opening as an inlet opening ( 16 ) are arranged below the radiator ( 8 ).
4. Air conditioning system according to claim 1 or 2, characterized in that the second opening as an inlet opening ( 45 ) near the heating body ( 36 ) and the first opening are provided as an inlet opening ( 42 ) near the evaporator ( 35 ).
5. Air conditioning system according to claim 2, characterized in that the channel ( 12 ) from a trough-like recess ( 17 ) on the housing seboden ( 11 ) and a cover strip ( 24 ) is formed.
6. Air conditioning system according to claim 3, characterized in that the groove-like recess ( 17 ) is integrally formed on the housing base ( 11 ).
7. Air conditioning system according to claim 2, characterized in that the channel ( 39 ) is tubular and made in one piece with a Ge housing lower part ( 31 ).
8. Air conditioning system according to claim 1, characterized in that the lowest point is arranged approximately below the end of the radiator ( 8 ) which is distant from the evaporator ( 7 ).
9. Air conditioning system according to claim 1 and 4, characterized in that the lowest point is arranged approximately below the evaporator ( 35 ) be adjacent end of the radiator ( 36 ) and the inlet opening ( 45 ) and the inlet opening ( 42 ) are close to each other .
10. Air conditioning system according to claim 5, characterized in that the channel ( 12 ) in the section between the evaporator-side inlet opening ( 13 ) and the radiator-side inlet opening ( 13 ) extends rectilinearly.
11. Air conditioning system according to claim 3, characterized in that the radiator-side inlet opening ( 16 ) between the evaporator-side inlet opening ( 13 ) and with a connection piece ( 15 ) provided drain opening ( 14 ).
12. Air conditioning system according to claim 11, characterized in that the channel ( 12 ) extends over its entire length to the drain opening GE linear.
13. Air conditioning system according to claim 11, characterized in that the channel section ( 27 ) downstream of the inlet opening ( 16 ) is arcuate or angled.
14. The air conditioner according to claim 5, characterized in that the radiator-side inlet openings (16) are formed by arranged next to the trough-like recess (17) has recesses (19, 20) via connecting channels (21, 22) on the groove-like depression (17) are connected.
15. Air conditioning system according to claim 14, characterized in that the connecting channels ( 21 , 22 ) run substantially parallel to the longitudinal direction of the trough-shaped depression ( 17 ) and un ter at an acute angle into the recess.
16. Air conditioning system according to claim 5, characterized in that the radiator-side inlet openings ( 16 ) are arranged in the cover strip ( 24 ).
17. Air conditioning system according to claim 5, characterized in that the cover strip ( 24 ) is substantially flat and on the underside has at least one projection ( 25 ) which engages in a groove ( 26 ) next to the channel-shaped recess ( 17 ).
DE4410120A 1993-05-27 1994-03-24 Air conditioning for a motor vehicle Expired - Fee Related DE4410120C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9308019U DE9308019U1 (en) 1993-05-27 1993-05-27
DE4410120A DE4410120C2 (en) 1993-05-27 1994-03-24 Air conditioning for a motor vehicle

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4410120A DE4410120C2 (en) 1993-05-27 1994-03-24 Air conditioning for a motor vehicle
GB9409492A GB2279143B (en) 1993-05-27 1994-05-12 A housing for a motor vehicle air-conditioning system
FR9406324A FR2705621B1 (en) 1993-05-27 1994-05-25 Installation of air conditioning for a vehicle.

Publications (2)

Publication Number Publication Date
DE4410120A1 true DE4410120A1 (en) 1994-12-01
DE4410120C2 DE4410120C2 (en) 1995-06-01

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ID=6893776

Family Applications (2)

Application Number Title Priority Date Filing Date
DE9308019U Expired - Lifetime DE9308019U1 (en) 1993-05-27 1993-05-27
DE4410120A Expired - Fee Related DE4410120C2 (en) 1993-05-27 1994-03-24 Air conditioning for a motor vehicle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE9308019U Expired - Lifetime DE9308019U1 (en) 1993-05-27 1993-05-27

Country Status (1)

Country Link
DE (2) DE9308019U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489365A1 (en) * 2001-12-19 2004-12-22 Mitsubishi Denki Kabushiki Kaisha Air conditioner
WO2006039549A1 (en) * 2004-09-30 2006-04-13 Valeo Climate Control Corp. Hvac with detached deflector
EP1669224A2 (en) 2004-12-13 2006-06-14 Behr GmbH &amp; Co. KG Air conditioner including an evaporator with a condensed water drain
EP1762407A2 (en) 2005-09-13 2007-03-14 Behr GmbH & Co. KG Device with fluid drain
EP2168796A1 (en) 2008-09-26 2010-03-31 Valeo Klimasysteme GmbH Air conditioning system for a car
DE102008048911A1 (en) 2008-09-26 2010-04-01 Valeo Klimasysteme Gmbh Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728512B1 (en) * 1994-12-22 1997-02-07
DE19613345B4 (en) 1996-04-03 2004-09-30 Behr Gmbh & Co. Kg Heating or air conditioning system for a motor vehicle
JP4555291B2 (en) 2003-08-11 2010-09-29 ベール ゲーエムベーハー ウント コー カーゲー Air spillers, especially air spillers for automobiles
DE102008048156A1 (en) 2008-09-19 2010-04-01 Behr Industry Gmbh & Co. Kg Evaporator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8228162U1 (en) * 1982-10-07 1983-01-05 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De
DE3149252A1 (en) * 1981-12-11 1983-06-30 Bayerische Motoren Werke Ag Heating or air-conditioning system for motor vehicles
DE3229866C2 (en) * 1982-08-11 1986-10-16 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023236C2 (en) * 1980-06-21 1988-09-15 Daimler-Benz Ag, 7000 Stuttgart, De
DE3302377C2 (en) * 1983-01-25 1993-01-14 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De
DE3330951C2 (en) * 1983-08-27 1985-08-22 Daimler-Benz Ag, 7000 Stuttgart, De
DE3623185C2 (en) * 1986-07-10 1988-09-15 Daimler-Benz Ag, 7000 Stuttgart, De
DE3710753C2 (en) * 1986-07-12 1989-01-19 Daimler-Benz Ag, 7000 Stuttgart, De
DE3826021A1 (en) * 1988-07-30 1990-02-01 Porsche Ag Heating and / or air conditioning for a motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149252A1 (en) * 1981-12-11 1983-06-30 Bayerische Motoren Werke Ag Heating or air-conditioning system for motor vehicles
DE3229866C2 (en) * 1982-08-11 1986-10-16 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De
DE8228162U1 (en) * 1982-10-07 1983-01-05 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489365A4 (en) * 2001-12-19 2010-05-12 Mitsubishi Electric Corp Air conditioner
EP1489365A1 (en) * 2001-12-19 2004-12-22 Mitsubishi Denki Kabushiki Kaisha Air conditioner
US7407001B2 (en) 2004-09-30 2008-08-05 Valeo Climate Control Corp. HVAC with detached deflector
WO2006039549A1 (en) * 2004-09-30 2006-04-13 Valeo Climate Control Corp. Hvac with detached deflector
EP1669224A2 (en) 2004-12-13 2006-06-14 Behr GmbH &amp; Co. KG Air conditioner including an evaporator with a condensed water drain
DE102004060130A1 (en) * 2004-12-13 2006-06-14 Behr Gmbh & Co. Kg Air conditioning with an evaporator with condensate drain
EP1669224A3 (en) * 2004-12-13 2008-08-06 Behr GmbH &amp; Co. KG Air conditioner including an evaporator with a condensed water drain
DE102005043849A1 (en) * 2005-09-13 2007-03-22 Behr Gmbh & Co. Kg Device with liquid drain
EP1762407A2 (en) 2005-09-13 2007-03-14 Behr GmbH & Co. KG Device with fluid drain
EP2168796A1 (en) 2008-09-26 2010-03-31 Valeo Klimasysteme GmbH Air conditioning system for a car
DE102008048911A1 (en) 2008-09-26 2010-04-01 Valeo Klimasysteme Gmbh Air-conditioning unit for motor vehicle, has housing, evaporator and outlet path for condenser, which condenses in evaporator, where outlet path has collecting section and removing section
CN101737931A (en) * 2008-09-26 2010-06-16 法雷奥空调系统有限责任公司 Automobile air conditioning system
EP2602136A1 (en) 2008-09-26 2013-06-12 Valeo Klimasysteme GmbH Air conditioning system for a car
CN101737931B (en) * 2008-09-26 2014-01-08 法雷奥空调系统有限责任公司 Automobile air conditioning system
EP2602136B1 (en) 2008-09-26 2018-07-04 Valeo Klimasysteme GmbH Air conditioning system for a car

Also Published As

Publication number Publication date
DE9308019U1 (en) 1993-07-15
DE4410120C2 (en) 1995-06-01

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