CA2013377A1 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- CA2013377A1 CA2013377A1 CA002013377A CA2013377A CA2013377A1 CA 2013377 A1 CA2013377 A1 CA 2013377A1 CA 002013377 A CA002013377 A CA 002013377A CA 2013377 A CA2013377 A CA 2013377A CA 2013377 A1 CA2013377 A1 CA 2013377A1
- Authority
- CA
- Canada
- Prior art keywords
- working medium
- receiver
- header
- outlet header
- heat exchanger
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
- F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A heat exchanger includes an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium, which is spaced by a predetermined distance from the inlet header, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to heat-exchange with the atmos-phere so as to condense into the liquid working medium, and a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes. The outlet header not only performs the function of a header, but also performs the function of a receiver for receiving the liquid working medium. The outlet header and the receiver are integrated into a one-piece member, or are integrally connected together.
A heat exchanger includes an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium, which is spaced by a predetermined distance from the inlet header, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to heat-exchange with the atmos-phere so as to condense into the liquid working medium, and a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes. The outlet header not only performs the function of a header, but also performs the function of a receiver for receiving the liquid working medium. The outlet header and the receiver are integrated into a one-piece member, or are integrally connected together.
Description
2~13~77 The invention relates to a heat exchanger such as a condenser used in an air-conditioner for an automobile.
Such condenser, as disclosed in JP-U-58-49167, includes a separate receiver which is supported on a condenser body through a separate bracket. The condenser body and the receiver are communicated with each other via a separate conduit.
A condenser disclosed in JP-U-57-112671 includes a receiver and a bracket which are formed integrally with each other to form a one-piece member.
This one-piece member is supported on a condenser body, and the condenser body i8 communicated with the receiver via a separate conduit.
In the former condenser, the elements are separate from-each other, and are connected together via the conduit. For this reason, it is difficult to render this condenser lightweight and small-sized. Further, the efficiency of the assembling operation is not high, and the problem of air-tightness is encountered.
It is also difficult to render the latter condenser lightweight and small-sized, and this condenser is inferior in air-tightness. Further, the efficiency of the ascembling operation is not so high.
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OBJECT AND SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a heat exchanger with a receiver, which is lightweight and small-sized.
Another object of the invention is to provide a heat exchanger with a receiver, which can be manufactured at a high productivity.
A further object of the invention is to provide a heat exchanger with a receiver, which is highly air-tight.
To this end, according to a first aspect of the present invention, there is provided a heat exchanger compri~ing an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium spaced by a predetermined distance from the inlet header, the outlet header having a receiver for receiving the liquid working medium, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to condense into the liquid working medium, and a plurality of fins each provided between respective two ad~acent ones of the heat exchange pipes.
According to a second aspect of the invention, there is provided a heat exchanger comprising an inlet header for receiving a gaseous working medium, a receiver for receiving and discharging a liquid working ~edium spaced by a predetermined distance from the inlet header, a desiccant layer disposed within the receiver, , ' '''' '" ' , ' '''.''''',:''".','''~'"'' " ~' '' , ' : , ' , .
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2~377 1 a plurality of heat exchange pipes communicating the inlet header with the receiver, through which the gaseous working medium flows to condense into the liquid working medium, and a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes.
According to a third aspect of the invention, there is provided a heat exchanger comprising an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium spaced by a predetermined distance from the inlet header, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to condense into the liquid working medium, a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes, a receiver for receiving the liquid working medium disposed adjacent to the outlet header, a desiccant layer disposed within the receiver, and a holder member holding the receiver and secured to the outlet header so as to define there among a working medium passage.
According to a fourth aspect of the invention, - -.
there is provided a heat exchanger comprising an inlet --.-header for receiving a gaseous working medium, an outlet 25 header spaced by a predetermined distance from the inlet -1 header, a plurality of heat exchange pipes communicating ~ -the inlet header with the outlet header, through which the gaseous working medium flows to condense into the ,, ,, , ,, .,, , , ,, ~,, ., " , . ,,,, , ", . .. . ..
2~3377 1 liquid working medium, a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes, a desiccant layer disposed within the outlet header to divide an interior thereof into two chambers, the condensed working medium flowing from one of the two chambers to the other through the desiccant layer, and conduit means for discharging the condensed working medium from the other chamber to the exterior of the outlet header.
Many other advantages and features of the present invention will become apparent from the following detailed description of the preferred embodiments with referring to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of a heat exchanger according to a first embodiment of the present invention;
Figs. 2 and 3 are cross-sectional views taken along the lines II-II and III-III of Fig. 1, respectively;
Fig. 4 is a cross-sectional view of a heat exchanger according to a second embodiment of the invention;
Figs. 5 and 6 are cross-sectional views taken along the lines V-V and VI-VI of Fig. 4, respectively;
Fig. 7 is a cross-sectional view of a heat exchanger according to a third embodiment of the . i, , . , .. , . ,.. ,. ":, ,-. ,., : - . ..
2~3~7 1 invention;
Figs. 8 and 9 are cross-sectional views taken a long the lines VIII-VIII and IX-IX of Fig. 7, respectively;
s Fig. 10 is a perspective view showing a outlet header and a receiver of the heat exchanger of Fig. 7;
Figs. 11 to 13 are cross-sectional views of heat exchangers according to fourth to sixth embodiments of the invention, respectively;
Figs. 14 and 15 are cross-sectional views taken along the lines XIV-XIV and XV-XV of Fig. 13;
Fig. 16 is a perspective view of an outlet header of the heat exchanger of Fig. 13;
Fig. 17 is a perspective view of a heat exchanger according to a seventh embodiment of the invention;
Fig. 18 is a fragmentary cross-sectional view, showing a bottom portion of an outlet header of the heat exchanger of Fig. 17; -Fig. 19 is a bottom end view of the header of -Fig. 18;
Figs. 20 and 22 are views similar to Fig. 18, but showing modified outlet headers, respectively;
Fig. 21 and 23 are bottom end views of the 25 headers of Figs. 20 and 22, respectively; and -Fig. 24 is a schematic perspective view of a portion of an automobile equipped with an air-, ,, " , , ,, ,; ,:,, ,. ,, .,, , . ,, ,, , , , ., , " , ,, , . - , . , . ", . . , " .,,, - " , ",, , ,, , ,, ~ ',: ', ,, , , , " . . ...
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2 ~ 7 7 1 conditioner incorporating the heat exchanger according to the invention as a condenser.
DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE
INVENTION
Referring to Figs. 1 to 3, a heat exchanger 1 according to a first embodiment of the invention i8 used as a condenser in a refrigerating cycle. The heat exchanger 1 comprises a receiver 10 and a heat exchanger body 20.
The heat exchanger body 20 includes a pair of aluminum headers 21 and 22 spaced by a predetermined distance from each other, each of which has a flattened circular cross-section. A plurality of heat exchange aluminum pipes 23 extend in parallel relation to one another to communicate an interior of the header 21 with - an interior of the header 22. These pipes 23 are fixed to the headers 21 and 22 by brazing. Aluminum corrugated fins 24 are provided between any two adjacent pipes 23 and brazed thereto.
A gaseous working medium flows into the inlet header 21 via a union 211 connected to one end thereof, as indicated by an arrow. The other end of the inlet header 21 is closed by an end cap 212. The gaseous working medium flows through the pipes 23 to heat-exchange with the atmosphere so as to condense into a condensate, that is, a liquid working medium. The condensate flows into the outlet head 22 having opposite ., "" ,,,, , , .~ .. ..
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1 ends closed respectively by end caps 221 and 222.
The aluminum receiver 10 includes a tubular body 11 having one end closed by an end cap 111 and the other end closed by an end cap 112 mounting sight glass body 113 thereon, a desiccant layer 12 provided within the body 11 to divide the interior thereof into two chambers 114 and llS, and a suction pip 13 mounted within the body 11 and extending between the chambers 115 and 114 to the sight glass body 113 through the desiccant layer 12.
A part of the peripheral wall of the receiver 10 is recessed radially inwardly along the axial length thereof except for the opposite ends thereof to provide -a recess portion 116. The receiver 10 is fixed to the outlet header 22 by brazing so as to define a medium flow passage 117 between a flat peripheral wall portion of the outlet header 22 and the recess portion 116. An opening 223 is formed in a part of the flat peripheral wall portion of the outlet header 22 adjacent to the end :-cap 222. An opening 118 is formed in a part of the bottom of the recess portion 116 remote from the end cap 111 of the receiver 10.
With this construction, the condensate introduced into the outlet header 22 flows into the flow passage 117 via the opening 223, and further flows into the receiver 10 via the opening 118. The condensate .
flows through the desiccant layer 12, and then the moisture in the working medium is adsorbed by the ,, .,, ~, .. . .. .
', ' '' , ' , ', ' '~ ' '; '' . , , ' ,: ' ' ' ' '' ',, ' ''"' . ' ' ' ' ' ' 2~3~3~7 1 desiccant and removed from the working medium. After passing through the desiccant layer 12, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, and only the liquid 5 working medium is accumulated in the chamber 115. The liquid medium thus accumulated is fed to other devices in the refrigerating cycle via the suction pipe 13 and a pipe to be connected to the sight glass body 113.
Referring to Figs. 4 to 6, a heat exchanger 1 according to a second embodiment of the invention also comprises a receiver 10 and a heat exchanger body 20.
The heat exchanger of Fig. 4 is generally of the same construction as that of the heat exchanger of Fig. 1, but differs therefrom in the following points.
A partition plate 213 is mounted on an inlet header 21 to divide an interior thereof into two chambers. More specifically, the partition plate 213 is disposed apart from a union 211 connected to one end of the inlet header 21 by a distance generally equal to one-third of the length of the inlet header 21. A flat peripheral wall portion of an outlet header 22 opposite to the receiver 10 is partially recessed inwardly to provide a recess portion 224. The recess portion 224 extends axially between an opening 223 and a flat wall portion spaced from an end cap 221 by a distance generally equal to one-third of the length of the outlet header 22. Another partition plate 225 is mounted on the outlet header 22 adjacent to the edge of the opening . '.','~' ' "', ,,' "', '''' "' ''',,",'""", ',",'''' " ', ,''~', , ~
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1 223, thereby dividing an interior of the outlet header 22 into two chambers. The peripheral wall of the receiver 10 has no recess portion, and an opening ll9 is formed in a portion of the peripheral wall of the receiver 10 opposite to the recess portion 224 of the outlet header 22.
In the heat exchanger of this embodiment, the --length of the path of movement of the working medium is increased, thereby enhancing the heat exchange efficiency.
Figs. 7 to 10 show another modified heat exchanger 1 according to a third embodiment of the invention, which also comprises a receiver 30 and a heat exchanger body 40.
The heat exchanger body 40 includes a pair of aluminum headers 41 and 42 spaced by a predetermined distance from each other, each of which has a circular crossosection. A plurality of heat exchange aluminum pipes 43 extend in parallel relation to one another to communicate an interior of the header 41 with an interior of the header 42. These pipes 43 are fixed to ~;
the headers 41 and 42 by brazing. Aluminum corrugated fins 44 are provided between any two adjacent pipes 43 and brazed thereto.
A partition plate 413 is mounted on the inlet header 41 to divide the interior thereof into two chambers. More specifically, the partition plate 413 is disposed apart from a union 411 connected to one end of , . , -: , ,; . ' - .;
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', ''`. '~`~ ' , / '', ,. ' , ,'' '', ', " ,,- ' , , 2~1 3377 , 1 the inlet header 41 by a distance generally equal to one-third of the length of the inlet header 41. Another partition plate 425 is mounted on the outlet header 42 and is disposed apart from an end cap 422 connected to one end of the outlet header 42 by a distance generally equal to one-third of the length of the outlet header 42. The interior of the outlet header 42 is divided by the partition plate 425 into two chambers. An opening 423 is formed in the peripheral wall of the outlet header 42.
The receiver 30 includes a tubular body 31 of a circular cross-section having projections 314 and 315 respectively projecting axially from the opposite ends of the tubular body 31 and partially extending circum-ferentially, an end cap 311 which has an arcuate slit 316 receiving the projection 314 therein and close8 one end of the body 31, and an end cap 312 which has an arcuate slit 317 receiving the projection 315 and closes the other end of the body 31. A sight glass body 313 is 20 mounted on the end cap 311. A suction pipe 33 is -connected to the sight glass body 313 through the end cap 311, and a disk-shaped desiccant layer 32 is mounted on the suction pipe 33. With this construction, by attaching the end cap 311 to the receiver body 31, the desiccant layer 32 and the suction pipe 33 are mounted within the receiver body 31. -The receiver 30 is snugly fitted within a mounting member 34 of a horseshoe-shaped cross-section, : . , ,i, . . . . . .. . .
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2 ~ 7 7 1 and the mounting member 34 is secured to the outlet header 42 to hold the receiver 30 stationary against the outlet header 42.
The gaseous working medium introduced from the union 411 flows through the pipes 43 to heat-exchange with the atmosphere so as to condense into a condensate.
The thus condensed working medium i.e., condensate, flows from the outlet header 42 through a communication opening 423 formed therein into a flow passage 319 which is defined by the mounting member 34, the receiver 30 and the outlet header 42. The condensate further flows into the receiver 30 through a communication opening 318 -:
formed in the receiver 30. The condensate flows through the desiccant layer 32, and then the moisture in the 15 medium is adsorbed by the desiccant and removed from the ,-~
working medium. After passing through the desiccant layer 32, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, and only the liquid medium is accumulated in the receiver 30. The liquid medium thus accumulated is discharged from the receiver 30 via the suction pipe 33 and a pipe to be connected to the sight glass body 313.
In the heat exchanger of this embodiment~ -since the headers and the receiver are made of tubular members of a circular cross-sections, the productivity can be improved.
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,, ' ., ' , ' ' . ' ~ ~, , ~ , , ' , , - 2~3~77 1 Fig. 11 shows a further modified heat exchanger 1 according to a fourth embodiment of the invention, which comprises a receiver 50 and a heat exchanger body 60.
The heat exchanger body 60 includes a pair of aluminum headers 61 and 62 spaced by a predetermined distance from each other, each of which has a flattened circular cross-section. A plurality of heat exchange aluminum pipes 63 extend in parallel relation to one another into the headers 61 and 62. These pipes 63 are fixed to the headers 61 and 62 by brazing. Aluminum corrugated fins 64 are provided between any two adjacent pipes 63 and brazed thereto.
A union 611 is connected to one end of the inlet header 61, and the other end of the inlet header 61 is closed by an end cap 612. A partition plate 613 - is mounted on the inlet header 61, which is disposed apart from the union 611 by a distance generally equal to one-third of the length of the inlet header 61. The 20 interior of the inlet header 61 is divided into two -chambers by the partition plate 613. The outlet header 62 is closed at one end thereof by an end cap 621. One flat portion of the peripheral wall of the outlet header 62 is notched or cut away over an area extending from the other end thereof to a portion spaced from such other end by a distance generally equal to one-third of the length of the outlet header 62. A partition cap 622 i8 fitted in the outlet header 62 at one end of the 2~3~3~7 1 notch remote from the other end of the outlet header 62.
The receiver 50 is defined by the remainder of that portion of the peripheral wall of the outlet header 62 where the above notch is provided, an end cap 511 secured to this remaining portion, an end cap 512 secured to the other end of the outlet header 62, and a --peripheral wall 516 secured at its opposite ends to the end caps 511 and 512. A sight glass body 513 is mounted on the end cap 511. A desiccant layer 52 is provided within the receiver 50 to divide the interior of the receiver S0 into two chambers 514 and 515. A suction pipe 53 extends between the chambers 514 and 515 to the sight glass body 513 through the desiccant layer 52.
The working medium flows through the pipes 63 to heat-exchange with the atmosphere so as to condense into a condensate, and flows into the receiver 50.
In this arrangement in which the receiver 50 is disposed downwardly in the direction of acting of the gravity as shown in Fig. 11, the recovery of the condensate is enhanced, so that the working medium can be utilized more efficiently.
Referring to Fig. 12, a further modified heat exchanger 1 according to a fifth embodiment of the invention comprises a pair of aluminum headers 71 and 72 spaced a predetermined distance from each other. A
plurality of heat exchange aluminum pipes 73 are disposed in parallel relation to one another to extend into the headers 71 and 72. These pipes 73 are fixed to ' , ' "., , ,,,' , ;: ,,, . ,. ,: , " , ., . ,i ", , , ., . , , .! ~ , ' ,, , , . , " , , ~ :
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2~ 3~'~7 1 the headers 71 and 72 by brazing. Aluminum corrugated fins 74 are provided between any two adjacent pipes 73 and brazed thereto.
The gaseous working medium flows into the inlet header 71 through a union 711 connected to one end -of the inlet header 71. The other end of the inlet header 71 is closed by an end cap 712. The working medium flows through the pipes 73 to heat-exchange with the atmosphere so as to condense into a liquid working medium, i.e. condensate. The condensate further flows into the outlet header 72. One end of the outlet header 72 is closed by an end cap 721 on which a sight glass body 723 is mounted, and the other end of the outlet header 72 is closed by an end cap 722. The interior of the outlet header 72 is divided into two chambers 724 and 725 by a desiccant layer 75. A suction pipe 76 extends between the chambers 724 and 725 to the sight glass body 723 through the desiccant layer 75.
The liquid working medium introduced into the outlet header 72 flows through the desiccant layer 73, and then the moisture in the medium is adsorbed by the desiccant and removed from the working medium. After passing through the desiccant layer 73, the working medium i8 separated due to gravitation into two phases, namely liguid one and gaseous one, so that only the liquid medium is accumulated in the chamber 715. The thus accumulated liguid medium is discharged from the outlet header 72 via the suction pipe 76 and a pipe to .
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1 be connected to the sight glass body 723.
In the heat exchanger of this embodiment, the outlet header 72 not only performs the same function as -the outlet header of the heat exchangers of the above -5 embodiments, but also performs the function of a receiver of the heat exchanger. Therefore, the number of the component parts as well as the overall size of the heat exchanger further can be reduced as compared with the heat exchangers of the above embodiments.
10Referring to Fig. 13, a further modified heat exchanger 1 according to a sixth embodiment of the invention comprises an aluminum header 81, and a header/
receiver aluminum body 82 of a one-piece construction spaced by a predetermined distance f rom the header 81.
A plurality of heat exchange aluminum pipes 83 extend in parallel relation to one another to communicate the header 81 with the header/receiver body 82. These pipes 83 are fixed to the header 81 and the header/receiver body 82 by brazing. Aluminum corrugated fin 84 are provided between any two adjacent pipes 83 and brazed thereto.
A union 811 is connected to one end of the inlet header 81, and the other end of the inlet header 81 is closed by an end cap 812. A partition plate 813 is mounted on the inlet header 81, and is disposed from the union 811 by a distance generally equal to one-third of the length of the inlet header 81. The interior of the inlet header 81 is divided into two chambers by the .
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1 partition plate 813.
As can be clearly seen from Figs. 14 to 16, the header/receiver body 82 has a first tubular portion 821 of a circular cross-section constituting a receiver, and a second tubular portion 822 of a U-shaped cross-section adjacent to the first portion 821. The second portion 822 has a partition wall 823 which axially extends to divide the second portion 822 into two sections A and Ba The section _ constitutes an outlet header, and the section B constitutes a medium flow passage. A row of holes for receiving one ends of the pipes 83 therein are formed in the peripheral wall of the section . One end of the section _ is closed by an end cap 824, and one end of the second portion 822 remote from the end cap 824 is closed by an end cap 825.
A notch 826 is formed in a part of the axial partition wall 823, and an interior of the section _ is divided into two chambers by a partition plate 827.
One end of the first portion 821 and one end of the section B of the second portion 822 are closed by an end cap 828 on which a sight glass body 829 is .-mounted. The other end of the first portion 821 is ~
closed by an end cap 830. A notch 831 is formed in . -.
a part of that portion of the peripheral wall of the first portion 821 disposed adjacent to the second portion 822.
The interior of the receiver portion 821 is divided into two chambers 833 and 834 by a desiccant - 16 - , .
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1 layer 832. A suction pipe 85 extends between the chambers 833 and 834 to the sight glass body 829 through the desiccant layer 832.
The gaseous working medium introduced from the union 811 flows through the pipes 83 to heat-exchange with the atmosphere so as to condense into condensate which is to be accumulated in the outlet header portion _. The condensate flows from the outlet header portion _ into the medium flow passage B via the notch 826. The condensate further flows into the receiver 821 via the notch 831. The condensate flows through the desiccant layer 832, and then the moisture in the medium is adsorbed by the desiccant and removed from the working medium. After passing through the desiccant layer 832, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, so that only the liquid medium is accumulated in the chamber 834. The thus accumulated liquid medium is discharged outside through the suction pipe 85 and a pipe to be connected to the sight glass body 829.
It is preferred that the header/receiver body is formed by drawing an aluminum material into a one-piece construction.
In the heat exchanger of this embodiment, ~ -since the receiver and the outlet header are integral with each other, the strength of connection between the two is increased. In addition, the number of the component parts is reduced, and therefore the .,, , . ,, ",, . : , . , , : -" ,, , ,: ; , ~ , - , , ; . ~: , . .. .. ..
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Such condenser, as disclosed in JP-U-58-49167, includes a separate receiver which is supported on a condenser body through a separate bracket. The condenser body and the receiver are communicated with each other via a separate conduit.
A condenser disclosed in JP-U-57-112671 includes a receiver and a bracket which are formed integrally with each other to form a one-piece member.
This one-piece member is supported on a condenser body, and the condenser body i8 communicated with the receiver via a separate conduit.
In the former condenser, the elements are separate from-each other, and are connected together via the conduit. For this reason, it is difficult to render this condenser lightweight and small-sized. Further, the efficiency of the assembling operation is not high, and the problem of air-tightness is encountered.
It is also difficult to render the latter condenser lightweight and small-sized, and this condenser is inferior in air-tightness. Further, the efficiency of the ascembling operation is not so high.
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OBJECT AND SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a heat exchanger with a receiver, which is lightweight and small-sized.
Another object of the invention is to provide a heat exchanger with a receiver, which can be manufactured at a high productivity.
A further object of the invention is to provide a heat exchanger with a receiver, which is highly air-tight.
To this end, according to a first aspect of the present invention, there is provided a heat exchanger compri~ing an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium spaced by a predetermined distance from the inlet header, the outlet header having a receiver for receiving the liquid working medium, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to condense into the liquid working medium, and a plurality of fins each provided between respective two ad~acent ones of the heat exchange pipes.
According to a second aspect of the invention, there is provided a heat exchanger comprising an inlet header for receiving a gaseous working medium, a receiver for receiving and discharging a liquid working ~edium spaced by a predetermined distance from the inlet header, a desiccant layer disposed within the receiver, , ' '''' '" ' , ' '''.''''',:''".','''~'"'' " ~' '' , ' : , ' , .
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' ' ' , ' ' .,, ' , , ' ' ';~ .' , ,, . : " .
2~377 1 a plurality of heat exchange pipes communicating the inlet header with the receiver, through which the gaseous working medium flows to condense into the liquid working medium, and a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes.
According to a third aspect of the invention, there is provided a heat exchanger comprising an inlet header for receiving a gaseous working medium, an outlet header for discharging a liquid working medium spaced by a predetermined distance from the inlet header, a plurality of heat exchange pipes communicating the inlet header with the outlet header, through which the gaseous working medium flows to condense into the liquid working medium, a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes, a receiver for receiving the liquid working medium disposed adjacent to the outlet header, a desiccant layer disposed within the receiver, and a holder member holding the receiver and secured to the outlet header so as to define there among a working medium passage.
According to a fourth aspect of the invention, - -.
there is provided a heat exchanger comprising an inlet --.-header for receiving a gaseous working medium, an outlet 25 header spaced by a predetermined distance from the inlet -1 header, a plurality of heat exchange pipes communicating ~ -the inlet header with the outlet header, through which the gaseous working medium flows to condense into the ,, ,, , ,, .,, , , ,, ~,, ., " , . ,,,, , ", . .. . ..
2~3377 1 liquid working medium, a plurality of fins each provided between respective two adjacent ones of the heat exchange pipes, a desiccant layer disposed within the outlet header to divide an interior thereof into two chambers, the condensed working medium flowing from one of the two chambers to the other through the desiccant layer, and conduit means for discharging the condensed working medium from the other chamber to the exterior of the outlet header.
Many other advantages and features of the present invention will become apparent from the following detailed description of the preferred embodiments with referring to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of a heat exchanger according to a first embodiment of the present invention;
Figs. 2 and 3 are cross-sectional views taken along the lines II-II and III-III of Fig. 1, respectively;
Fig. 4 is a cross-sectional view of a heat exchanger according to a second embodiment of the invention;
Figs. 5 and 6 are cross-sectional views taken along the lines V-V and VI-VI of Fig. 4, respectively;
Fig. 7 is a cross-sectional view of a heat exchanger according to a third embodiment of the . i, , . , .. , . ,.. ,. ":, ,-. ,., : - . ..
2~3~7 1 invention;
Figs. 8 and 9 are cross-sectional views taken a long the lines VIII-VIII and IX-IX of Fig. 7, respectively;
s Fig. 10 is a perspective view showing a outlet header and a receiver of the heat exchanger of Fig. 7;
Figs. 11 to 13 are cross-sectional views of heat exchangers according to fourth to sixth embodiments of the invention, respectively;
Figs. 14 and 15 are cross-sectional views taken along the lines XIV-XIV and XV-XV of Fig. 13;
Fig. 16 is a perspective view of an outlet header of the heat exchanger of Fig. 13;
Fig. 17 is a perspective view of a heat exchanger according to a seventh embodiment of the invention;
Fig. 18 is a fragmentary cross-sectional view, showing a bottom portion of an outlet header of the heat exchanger of Fig. 17; -Fig. 19 is a bottom end view of the header of -Fig. 18;
Figs. 20 and 22 are views similar to Fig. 18, but showing modified outlet headers, respectively;
Fig. 21 and 23 are bottom end views of the 25 headers of Figs. 20 and 22, respectively; and -Fig. 24 is a schematic perspective view of a portion of an automobile equipped with an air-, ,, " , , ,, ,; ,:,, ,. ,, .,, , . ,, ,, , , , ., , " , ,, , . - , . , . ", . . , " .,,, - " , ",, , ,, , ,, ~ ',: ', ,, , , , " . . ...
i. . , , ,, . ,, " "" , .
, :..... .. .
. .
.. . .
2 ~ 7 7 1 conditioner incorporating the heat exchanger according to the invention as a condenser.
DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE
INVENTION
Referring to Figs. 1 to 3, a heat exchanger 1 according to a first embodiment of the invention i8 used as a condenser in a refrigerating cycle. The heat exchanger 1 comprises a receiver 10 and a heat exchanger body 20.
The heat exchanger body 20 includes a pair of aluminum headers 21 and 22 spaced by a predetermined distance from each other, each of which has a flattened circular cross-section. A plurality of heat exchange aluminum pipes 23 extend in parallel relation to one another to communicate an interior of the header 21 with - an interior of the header 22. These pipes 23 are fixed to the headers 21 and 22 by brazing. Aluminum corrugated fins 24 are provided between any two adjacent pipes 23 and brazed thereto.
A gaseous working medium flows into the inlet header 21 via a union 211 connected to one end thereof, as indicated by an arrow. The other end of the inlet header 21 is closed by an end cap 212. The gaseous working medium flows through the pipes 23 to heat-exchange with the atmosphere so as to condense into a condensate, that is, a liquid working medium. The condensate flows into the outlet head 22 having opposite ., "" ,,,, , , .~ .. ..
' ' ',-' '',- ', ' ~ '' ' ',, ' ' ' : ',' ' ' :' " ., '' ' , ' , ' , " ' , , " ,~ , ',', ' ,' ', ',; '~ , , ~ , " ~ :, , ,, , ,, ,: ,, 2 ~
1 ends closed respectively by end caps 221 and 222.
The aluminum receiver 10 includes a tubular body 11 having one end closed by an end cap 111 and the other end closed by an end cap 112 mounting sight glass body 113 thereon, a desiccant layer 12 provided within the body 11 to divide the interior thereof into two chambers 114 and llS, and a suction pip 13 mounted within the body 11 and extending between the chambers 115 and 114 to the sight glass body 113 through the desiccant layer 12.
A part of the peripheral wall of the receiver 10 is recessed radially inwardly along the axial length thereof except for the opposite ends thereof to provide -a recess portion 116. The receiver 10 is fixed to the outlet header 22 by brazing so as to define a medium flow passage 117 between a flat peripheral wall portion of the outlet header 22 and the recess portion 116. An opening 223 is formed in a part of the flat peripheral wall portion of the outlet header 22 adjacent to the end :-cap 222. An opening 118 is formed in a part of the bottom of the recess portion 116 remote from the end cap 111 of the receiver 10.
With this construction, the condensate introduced into the outlet header 22 flows into the flow passage 117 via the opening 223, and further flows into the receiver 10 via the opening 118. The condensate .
flows through the desiccant layer 12, and then the moisture in the working medium is adsorbed by the ,, .,, ~, .. . .. .
', ' '' , ' , ', ' '~ ' '; '' . , , ' ,: ' ' ' ' '' ',, ' ''"' . ' ' ' ' ' ' 2~3~3~7 1 desiccant and removed from the working medium. After passing through the desiccant layer 12, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, and only the liquid 5 working medium is accumulated in the chamber 115. The liquid medium thus accumulated is fed to other devices in the refrigerating cycle via the suction pipe 13 and a pipe to be connected to the sight glass body 113.
Referring to Figs. 4 to 6, a heat exchanger 1 according to a second embodiment of the invention also comprises a receiver 10 and a heat exchanger body 20.
The heat exchanger of Fig. 4 is generally of the same construction as that of the heat exchanger of Fig. 1, but differs therefrom in the following points.
A partition plate 213 is mounted on an inlet header 21 to divide an interior thereof into two chambers. More specifically, the partition plate 213 is disposed apart from a union 211 connected to one end of the inlet header 21 by a distance generally equal to one-third of the length of the inlet header 21. A flat peripheral wall portion of an outlet header 22 opposite to the receiver 10 is partially recessed inwardly to provide a recess portion 224. The recess portion 224 extends axially between an opening 223 and a flat wall portion spaced from an end cap 221 by a distance generally equal to one-third of the length of the outlet header 22. Another partition plate 225 is mounted on the outlet header 22 adjacent to the edge of the opening . '.','~' ' "', ,,' "', '''' "' ''',,",'""", ',",'''' " ', ,''~', , ~
,, , , , , , , " , ~13~
1 223, thereby dividing an interior of the outlet header 22 into two chambers. The peripheral wall of the receiver 10 has no recess portion, and an opening ll9 is formed in a portion of the peripheral wall of the receiver 10 opposite to the recess portion 224 of the outlet header 22.
In the heat exchanger of this embodiment, the --length of the path of movement of the working medium is increased, thereby enhancing the heat exchange efficiency.
Figs. 7 to 10 show another modified heat exchanger 1 according to a third embodiment of the invention, which also comprises a receiver 30 and a heat exchanger body 40.
The heat exchanger body 40 includes a pair of aluminum headers 41 and 42 spaced by a predetermined distance from each other, each of which has a circular crossosection. A plurality of heat exchange aluminum pipes 43 extend in parallel relation to one another to communicate an interior of the header 41 with an interior of the header 42. These pipes 43 are fixed to ~;
the headers 41 and 42 by brazing. Aluminum corrugated fins 44 are provided between any two adjacent pipes 43 and brazed thereto.
A partition plate 413 is mounted on the inlet header 41 to divide the interior thereof into two chambers. More specifically, the partition plate 413 is disposed apart from a union 411 connected to one end of , . , -: , ,; . ' - .;
.. ~ J~ ,",".
', ~ , . . ..
" ' ,' , , ' ';, ' ., ; , :
', ''`. '~`~ ' , / '', ,. ' , ,'' '', ', " ,,- ' , , 2~1 3377 , 1 the inlet header 41 by a distance generally equal to one-third of the length of the inlet header 41. Another partition plate 425 is mounted on the outlet header 42 and is disposed apart from an end cap 422 connected to one end of the outlet header 42 by a distance generally equal to one-third of the length of the outlet header 42. The interior of the outlet header 42 is divided by the partition plate 425 into two chambers. An opening 423 is formed in the peripheral wall of the outlet header 42.
The receiver 30 includes a tubular body 31 of a circular cross-section having projections 314 and 315 respectively projecting axially from the opposite ends of the tubular body 31 and partially extending circum-ferentially, an end cap 311 which has an arcuate slit 316 receiving the projection 314 therein and close8 one end of the body 31, and an end cap 312 which has an arcuate slit 317 receiving the projection 315 and closes the other end of the body 31. A sight glass body 313 is 20 mounted on the end cap 311. A suction pipe 33 is -connected to the sight glass body 313 through the end cap 311, and a disk-shaped desiccant layer 32 is mounted on the suction pipe 33. With this construction, by attaching the end cap 311 to the receiver body 31, the desiccant layer 32 and the suction pipe 33 are mounted within the receiver body 31. -The receiver 30 is snugly fitted within a mounting member 34 of a horseshoe-shaped cross-section, : . , ,i, . . . . . .. . .
,, ~ , , , , ,"-"" - . :~;.,, . :- ..... . . ..
2 ~ 7 7 1 and the mounting member 34 is secured to the outlet header 42 to hold the receiver 30 stationary against the outlet header 42.
The gaseous working medium introduced from the union 411 flows through the pipes 43 to heat-exchange with the atmosphere so as to condense into a condensate.
The thus condensed working medium i.e., condensate, flows from the outlet header 42 through a communication opening 423 formed therein into a flow passage 319 which is defined by the mounting member 34, the receiver 30 and the outlet header 42. The condensate further flows into the receiver 30 through a communication opening 318 -:
formed in the receiver 30. The condensate flows through the desiccant layer 32, and then the moisture in the 15 medium is adsorbed by the desiccant and removed from the ,-~
working medium. After passing through the desiccant layer 32, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, and only the liquid medium is accumulated in the receiver 30. The liquid medium thus accumulated is discharged from the receiver 30 via the suction pipe 33 and a pipe to be connected to the sight glass body 313.
In the heat exchanger of this embodiment~ -since the headers and the receiver are made of tubular members of a circular cross-sections, the productivity can be improved.
' ~, :' , . , .
,, ' ., ' , ' ' . ' ~ ~, , ~ , , ' , , - 2~3~77 1 Fig. 11 shows a further modified heat exchanger 1 according to a fourth embodiment of the invention, which comprises a receiver 50 and a heat exchanger body 60.
The heat exchanger body 60 includes a pair of aluminum headers 61 and 62 spaced by a predetermined distance from each other, each of which has a flattened circular cross-section. A plurality of heat exchange aluminum pipes 63 extend in parallel relation to one another into the headers 61 and 62. These pipes 63 are fixed to the headers 61 and 62 by brazing. Aluminum corrugated fins 64 are provided between any two adjacent pipes 63 and brazed thereto.
A union 611 is connected to one end of the inlet header 61, and the other end of the inlet header 61 is closed by an end cap 612. A partition plate 613 - is mounted on the inlet header 61, which is disposed apart from the union 611 by a distance generally equal to one-third of the length of the inlet header 61. The 20 interior of the inlet header 61 is divided into two -chambers by the partition plate 613. The outlet header 62 is closed at one end thereof by an end cap 621. One flat portion of the peripheral wall of the outlet header 62 is notched or cut away over an area extending from the other end thereof to a portion spaced from such other end by a distance generally equal to one-third of the length of the outlet header 62. A partition cap 622 i8 fitted in the outlet header 62 at one end of the 2~3~3~7 1 notch remote from the other end of the outlet header 62.
The receiver 50 is defined by the remainder of that portion of the peripheral wall of the outlet header 62 where the above notch is provided, an end cap 511 secured to this remaining portion, an end cap 512 secured to the other end of the outlet header 62, and a --peripheral wall 516 secured at its opposite ends to the end caps 511 and 512. A sight glass body 513 is mounted on the end cap 511. A desiccant layer 52 is provided within the receiver 50 to divide the interior of the receiver S0 into two chambers 514 and 515. A suction pipe 53 extends between the chambers 514 and 515 to the sight glass body 513 through the desiccant layer 52.
The working medium flows through the pipes 63 to heat-exchange with the atmosphere so as to condense into a condensate, and flows into the receiver 50.
In this arrangement in which the receiver 50 is disposed downwardly in the direction of acting of the gravity as shown in Fig. 11, the recovery of the condensate is enhanced, so that the working medium can be utilized more efficiently.
Referring to Fig. 12, a further modified heat exchanger 1 according to a fifth embodiment of the invention comprises a pair of aluminum headers 71 and 72 spaced a predetermined distance from each other. A
plurality of heat exchange aluminum pipes 73 are disposed in parallel relation to one another to extend into the headers 71 and 72. These pipes 73 are fixed to ' , ' "., , ,,,' , ;: ,,, . ,. ,: , " , ., . ,i ", , , ., . , , .! ~ , ' ,, , , . , " , , ~ :
.. . . .. .
" ,, . .
2~ 3~'~7 1 the headers 71 and 72 by brazing. Aluminum corrugated fins 74 are provided between any two adjacent pipes 73 and brazed thereto.
The gaseous working medium flows into the inlet header 71 through a union 711 connected to one end -of the inlet header 71. The other end of the inlet header 71 is closed by an end cap 712. The working medium flows through the pipes 73 to heat-exchange with the atmosphere so as to condense into a liquid working medium, i.e. condensate. The condensate further flows into the outlet header 72. One end of the outlet header 72 is closed by an end cap 721 on which a sight glass body 723 is mounted, and the other end of the outlet header 72 is closed by an end cap 722. The interior of the outlet header 72 is divided into two chambers 724 and 725 by a desiccant layer 75. A suction pipe 76 extends between the chambers 724 and 725 to the sight glass body 723 through the desiccant layer 75.
The liquid working medium introduced into the outlet header 72 flows through the desiccant layer 73, and then the moisture in the medium is adsorbed by the desiccant and removed from the working medium. After passing through the desiccant layer 73, the working medium i8 separated due to gravitation into two phases, namely liguid one and gaseous one, so that only the liquid medium is accumulated in the chamber 715. The thus accumulated liguid medium is discharged from the outlet header 72 via the suction pipe 76 and a pipe to .
2~3~ ~
1 be connected to the sight glass body 723.
In the heat exchanger of this embodiment, the outlet header 72 not only performs the same function as -the outlet header of the heat exchangers of the above -5 embodiments, but also performs the function of a receiver of the heat exchanger. Therefore, the number of the component parts as well as the overall size of the heat exchanger further can be reduced as compared with the heat exchangers of the above embodiments.
10Referring to Fig. 13, a further modified heat exchanger 1 according to a sixth embodiment of the invention comprises an aluminum header 81, and a header/
receiver aluminum body 82 of a one-piece construction spaced by a predetermined distance f rom the header 81.
A plurality of heat exchange aluminum pipes 83 extend in parallel relation to one another to communicate the header 81 with the header/receiver body 82. These pipes 83 are fixed to the header 81 and the header/receiver body 82 by brazing. Aluminum corrugated fin 84 are provided between any two adjacent pipes 83 and brazed thereto.
A union 811 is connected to one end of the inlet header 81, and the other end of the inlet header 81 is closed by an end cap 812. A partition plate 813 is mounted on the inlet header 81, and is disposed from the union 811 by a distance generally equal to one-third of the length of the inlet header 81. The interior of the inlet header 81 is divided into two chambers by the .
- ' , ',,, ; ', ' ' , . , , ,: ' , :, . .. .
..
2 ~
1 partition plate 813.
As can be clearly seen from Figs. 14 to 16, the header/receiver body 82 has a first tubular portion 821 of a circular cross-section constituting a receiver, and a second tubular portion 822 of a U-shaped cross-section adjacent to the first portion 821. The second portion 822 has a partition wall 823 which axially extends to divide the second portion 822 into two sections A and Ba The section _ constitutes an outlet header, and the section B constitutes a medium flow passage. A row of holes for receiving one ends of the pipes 83 therein are formed in the peripheral wall of the section . One end of the section _ is closed by an end cap 824, and one end of the second portion 822 remote from the end cap 824 is closed by an end cap 825.
A notch 826 is formed in a part of the axial partition wall 823, and an interior of the section _ is divided into two chambers by a partition plate 827.
One end of the first portion 821 and one end of the section B of the second portion 822 are closed by an end cap 828 on which a sight glass body 829 is .-mounted. The other end of the first portion 821 is ~
closed by an end cap 830. A notch 831 is formed in . -.
a part of that portion of the peripheral wall of the first portion 821 disposed adjacent to the second portion 822.
The interior of the receiver portion 821 is divided into two chambers 833 and 834 by a desiccant - 16 - , .
2 $ ~
1 layer 832. A suction pipe 85 extends between the chambers 833 and 834 to the sight glass body 829 through the desiccant layer 832.
The gaseous working medium introduced from the union 811 flows through the pipes 83 to heat-exchange with the atmosphere so as to condense into condensate which is to be accumulated in the outlet header portion _. The condensate flows from the outlet header portion _ into the medium flow passage B via the notch 826. The condensate further flows into the receiver 821 via the notch 831. The condensate flows through the desiccant layer 832, and then the moisture in the medium is adsorbed by the desiccant and removed from the working medium. After passing through the desiccant layer 832, the working medium is separated due to gravitation into two phases, namely liquid one and gaseous one, so that only the liquid medium is accumulated in the chamber 834. The thus accumulated liquid medium is discharged outside through the suction pipe 85 and a pipe to be connected to the sight glass body 829.
It is preferred that the header/receiver body is formed by drawing an aluminum material into a one-piece construction.
In the heat exchanger of this embodiment, ~ -since the receiver and the outlet header are integral with each other, the strength of connection between the two is increased. In addition, the number of the component parts is reduced, and therefore the .,, , . ,, ",, . : , . , , : -" ,, , ,: ; , ~ , - , , ; . ~: , . .. .. ..
'"., ' . ' , : - ,, ,- ; .
., :. , " ~, :, .,:
3,~
1 productivity is enhanced.
Fig. 17 shows a modified form of the heat exchanger of Fig. 12. The heat exchanger of Pig. 17 is generally of the same construction as the heat exchanger 5 of Fig. 12, but differs therefrom in the following points.
Namely, loop-shaped elongate brackets 91 and 92 are mounted on the opposite end edges of the heat exchanger. An end cap 93 has a flat bottom, and a mounting bolt 94 for mounting the heat exchanger is provided at this flat bottom (Figs. 18 and 19). With this arrangement, the heat exchanger has an increased resistance to torsional or twisting forces. This facilitates the mounting operation. Further, as shown in Figs. 20 and 22, by integrally forming a positioning (registration) projection 951 or 961 on an end cap 95 or 96, the positioning or registration can be effected easily.
In an automobile air-conditioner shown in Fig.
24, one of the above-mentioned heat exchangers is used as a condenser. The condenser or heat exchanger 1, an expansion valve 2, an evaporator 3 and a compressor 4 are interconnected by pipes to provide a closed circuit, thereby forming a refrigerating cycle. Since there is no need to provide a separate receiver, the arrangement of the pipes is simplified, and the possibility of leakage of the working medium is reduced, thus increasing the heat exchange efficiency.
, ,, , . ;, ,, : ,, , ,,,, , , , . ., -, ,, , , , ". . . . ...... .. . ..
I' ' ' ", ~, "~, ",',~ ' ', , , ,' , , ',, ',, ,, , ' , ,, ' " ," ',,,, ' " ', ', ,'.
; ' "', ' " '''', ,' ' '" , , ' ' " " ', '', ' , ' '" "':' " " ,'"''~''' '' ,'' ' " ', ' , , , , , ,, ,, , , , , -' '" ' : ' ' ' , , , : , , ;, . . .
1 productivity is enhanced.
Fig. 17 shows a modified form of the heat exchanger of Fig. 12. The heat exchanger of Pig. 17 is generally of the same construction as the heat exchanger 5 of Fig. 12, but differs therefrom in the following points.
Namely, loop-shaped elongate brackets 91 and 92 are mounted on the opposite end edges of the heat exchanger. An end cap 93 has a flat bottom, and a mounting bolt 94 for mounting the heat exchanger is provided at this flat bottom (Figs. 18 and 19). With this arrangement, the heat exchanger has an increased resistance to torsional or twisting forces. This facilitates the mounting operation. Further, as shown in Figs. 20 and 22, by integrally forming a positioning (registration) projection 951 or 961 on an end cap 95 or 96, the positioning or registration can be effected easily.
In an automobile air-conditioner shown in Fig.
24, one of the above-mentioned heat exchangers is used as a condenser. The condenser or heat exchanger 1, an expansion valve 2, an evaporator 3 and a compressor 4 are interconnected by pipes to provide a closed circuit, thereby forming a refrigerating cycle. Since there is no need to provide a separate receiver, the arrangement of the pipes is simplified, and the possibility of leakage of the working medium is reduced, thus increasing the heat exchange efficiency.
, ,, , . ;, ,, : ,, , ,,,, , , , . ., -, ,, , , , ". . . . ...... .. . ..
I' ' ' ", ~, "~, ",',~ ' ', , , ,' , , ',, ',, ,, , ' , ,, ' " ," ',,,, ' " ', ', ,'.
; ' "', ' " '''', ,' ' '" , , ' ' " " ', '', ' , ' '" "':' " " ,'"''~''' '' ,'' ' " ', ' , , , , , ,, ,, , , , , -' '" ' : ' ' ' , , , : , , ;, . . .
Claims (12)
1. A heat exchanger comprising:
an inlet header for receiving a gaseous working medium;
an outlet header for discharging a liquid working medium, said outlet header being spaced by a predetermined distance from said inlet header, said outlet header having a receiver for receiving said liquid working medium;
a plurality of heat exchange pipes communicating said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium; and a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes.
an inlet header for receiving a gaseous working medium;
an outlet header for discharging a liquid working medium, said outlet header being spaced by a predetermined distance from said inlet header, said outlet header having a receiver for receiving said liquid working medium;
a plurality of heat exchange pipes communicating said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium; and a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes.
2. A heat exchanger according to Cliam 1, wherein said receiver includes therein a desiccant layer through which said liquid working medium flows.
3. A heat exchanger according to Claim 1, wherein said receiver is abutted and secured to said outlet header to define therebetween flow passage means for said liquid working medium.
4. A heat exchanger according to Claim 2, wherein said receiver, said outlet header and said flow passage means are integrated into a one-piece member.
5. A heat exchanger according to Claim 2, wherein said outlet header has a flattened circular cross-section, and a separate receiver is secured to a flat wall portion of said outlet header.
6. A heat exchanger according to Claim 4, wherein said separate receiver has a recess portion, and is secured at said recess portion thereof to said flat wall portion to define therebetween said flow passage means.
7. A heat exchanger according to Claim 3, wherein each of said headers has partition means mounted thereon intermediate opposite axial ends of said header, and said partition means interrupts the flow of said working medium.
8. A heat exchanger according to Claim 1, wherein at least a part of said outlet head constitutes a part of said receiver.
9. A heat exchanger according to Claim 1, wherein said receiver is disposed axially closely adjacent to said outlet header, and said receiver and said outlet header have a common wall portion.
10. A heat exchanger comprising:
an inlet header for receiving a gaseous working medium;
a receiver for receiving and discharging a liquid working medium, said receiver being spaced by a predetermined distance from said inlet header;
a desiccant layer disposed within said receiver, through which said liquid working medium flows;
a plurality of heat exchange pipes communicating said, through which said gaseous working medium flows to condense into said liquid working medium; and a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes.
an inlet header for receiving a gaseous working medium;
a receiver for receiving and discharging a liquid working medium, said receiver being spaced by a predetermined distance from said inlet header;
a desiccant layer disposed within said receiver, through which said liquid working medium flows;
a plurality of heat exchange pipes communicating said, through which said gaseous working medium flows to condense into said liquid working medium; and a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes.
11. A heat exchanger comprising:
an inlet header for receiving a gaseous working medium;
an outlet header for discharging a liquid working medium, said outlet header being spaced by a predetermined distance from said inlet header;
a plurality of heat exchange pipes communicat-ing said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium;
a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes;
a receiver for receiving said liquid working medium, said receiver being disposed adjacent to said outlet header;
a desiccant layer disposed within said receiver, through which said liquid working medium flows; and a holder member holding said receiver and secured to said outlet header to define a working medium-flow passage means among said outlet header, said receiver, and said holder member.
an inlet header for receiving a gaseous working medium;
an outlet header for discharging a liquid working medium, said outlet header being spaced by a predetermined distance from said inlet header;
a plurality of heat exchange pipes communicat-ing said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium;
a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes;
a receiver for receiving said liquid working medium, said receiver being disposed adjacent to said outlet header;
a desiccant layer disposed within said receiver, through which said liquid working medium flows; and a holder member holding said receiver and secured to said outlet header to define a working medium-flow passage means among said outlet header, said receiver, and said holder member.
12. A heat exchanger comprising:
an inlet header for receiving a gaseous working medium:
an outlet header spaced by a predetermined distance from said inlet header;
a plurality of heat exchange pipes communicat-ing said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium;
a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes;
a desiccant layer mounted within said outlet header to divide an interior thereof into two chambers, from one of which said liquid working medium flows into the other one through said desiccant layer; and conduit means for discharging said condensed working medium from said other chamber to the exterior of said outlet header.
an inlet header for receiving a gaseous working medium:
an outlet header spaced by a predetermined distance from said inlet header;
a plurality of heat exchange pipes communicat-ing said inlet header with said outlet header, through which said gaseous working medium flows to condense into said liquid working medium;
a plurality of fins each provided between respective two adjacent ones of said heat exchange pipes;
a desiccant layer mounted within said outlet header to divide an interior thereof into two chambers, from one of which said liquid working medium flows into the other one through said desiccant layer; and conduit means for discharging said condensed working medium from said other chamber to the exterior of said outlet header.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01-084818 | 1989-04-05 | ||
| JP1084818A JPH07122533B2 (en) | 1989-04-05 | 1989-04-05 | Condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2013377A1 true CA2013377A1 (en) | 1990-10-05 |
Family
ID=13841327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002013377A Abandoned CA2013377A1 (en) | 1989-04-05 | 1990-03-29 | Heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH07122533B2 (en) |
| KR (1) | KR900016719A (en) |
| CA (1) | CA2013377A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4245046C5 (en) * | 1992-11-18 | 2008-05-15 | Behr Gmbh & Co. Kg | Condenser for an air conditioning system of a vehicle |
| CN101598476B (en) * | 2008-06-03 | 2013-04-24 | 海尔集团公司 | Cooling medium circulation system of air conditioner |
| EP2503268A3 (en) * | 2011-03-24 | 2014-07-09 | Airbus Operations GmbH | Accumulator arrangement for storing a refrigerating medium, and method of operating such an accumulator arrangement |
| EP3637023A1 (en) * | 2018-10-09 | 2020-04-15 | Valeo Autosystemy SP. Z.O.O. | Heat exchanger with filter, for refrigerant fluid loop |
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| JP3044395B2 (en) * | 1990-12-28 | 2000-05-22 | 株式会社ゼクセル | Receiver dryer integrated condenser |
| DE4402927B4 (en) † | 1994-02-01 | 2008-02-14 | Behr Gmbh & Co. Kg | Condenser for an air conditioning system of a vehicle |
| US5546761A (en) * | 1994-02-16 | 1996-08-20 | Nippondenso Co., Ltd. | Receiver-integrated refrigerant condenser |
| US5582027A (en) * | 1994-03-29 | 1996-12-10 | Nippondenso Co., Ltd. | Modulator integrated type refrigerant condenser |
| JP3243924B2 (en) * | 1994-04-01 | 2002-01-07 | 株式会社デンソー | Refrigerant condenser |
| FR2754885B1 (en) * | 1996-10-23 | 1999-01-15 | Valeo Thermique Moteur Sa | CONDENSER WITH INTEGRATED TANK FOR REFRIGERATION CIRCUIT, PARTICULARLY FOR MOTOR VEHICLE |
| DE19748662A1 (en) * | 1996-11-08 | 1998-05-14 | Zexel Corp | Refrigerant reservoir with drying unit for air conditioning system |
| JP3801348B2 (en) | 1997-07-28 | 2006-07-26 | 株式会社ヴァレオサーマルシステムズ | Receiver tank |
| DE19926990B4 (en) * | 1998-06-16 | 2009-02-05 | Denso Corp., Kariya-shi | Condenser with built-in receiver for one refrigeration or refrigerant cycle |
| KR100502361B1 (en) * | 1998-06-19 | 2005-09-30 | 한라공조주식회사 | Refrigerant filter fastening device |
| JP2011185562A (en) * | 2010-03-10 | 2011-09-22 | Showa Denko Kk | Condenser |
| JP5622411B2 (en) * | 2010-03-19 | 2014-11-12 | 株式会社ケーヒン・サーマル・テクノロジー | Capacitor |
| JP5622414B2 (en) * | 2010-03-29 | 2014-11-12 | 株式会社ケーヒン・サーマル・テクノロジー | Capacitor |
| JP5775715B2 (en) * | 2010-04-20 | 2015-09-09 | 株式会社ケーヒン・サーマル・テクノロジー | Capacitor |
| EP3671066A1 (en) * | 2018-12-17 | 2020-06-24 | Valeo Autosystemy SP. Z.O.O. | Heat exchanger with filter, for refrigerant fluid loop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0526442Y2 (en) * | 1988-07-07 | 1993-07-05 |
-
1989
- 1989-04-05 JP JP1084818A patent/JPH07122533B2/en not_active Expired - Lifetime
-
1990
- 1990-03-29 CA CA002013377A patent/CA2013377A1/en not_active Abandoned
- 1990-04-04 KR KR1019900004614A patent/KR900016719A/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4245046C5 (en) * | 1992-11-18 | 2008-05-15 | Behr Gmbh & Co. Kg | Condenser for an air conditioning system of a vehicle |
| DE4245046C8 (en) * | 1992-11-18 | 2008-08-21 | Behr Gmbh & Co. Kg | Condenser for an air conditioning system of a vehicle |
| CN101598476B (en) * | 2008-06-03 | 2013-04-24 | 海尔集团公司 | Cooling medium circulation system of air conditioner |
| EP2503268A3 (en) * | 2011-03-24 | 2014-07-09 | Airbus Operations GmbH | Accumulator arrangement for storing a refrigerating medium, and method of operating such an accumulator arrangement |
| EP3637023A1 (en) * | 2018-10-09 | 2020-04-15 | Valeo Autosystemy SP. Z.O.O. | Heat exchanger with filter, for refrigerant fluid loop |
| WO2020074468A1 (en) * | 2018-10-09 | 2020-04-16 | Valeo Autosystemy Sp. Z O.O. | Heat exchanger with filter, for refrigerant fluid loop |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122533B2 (en) | 1995-12-25 |
| JPH02267478A (en) | 1990-11-01 |
| KR900016719A (en) | 1990-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |