CN102939509A

CN102939509A - Plate type heat exchanger, oil cooling system and method for cooling oil

Info

Publication number: CN102939509A
Application number: CN2011800278736A
Authority: CN
Inventors: 古斯塔夫·冯埃克曼; 布莱斯·乔利
Original assignee: Titanx Engine Cooling Holding AB
Current assignee: Titan Holding Co
Priority date: 2010-06-16
Filing date: 2011-06-10
Publication date: 2013-02-20
Anticipated expiration: 2031-06-10
Also published as: EP2583046A4; EP2583046B1; US20130092359A1; SE1050615A1; EP2594885A2; EP2594885A3; SE536042C2; EP2594885B1; WO2011159227A1; JP2013528779A; PL2583046T3; CN102939509B; CN106123652B; EP2583046A1; BR112012031685B1; BR112012031685A2; PL2594885T3; CN106123652A

Abstract

A heat exchanger for an oil cooler comprises at least two heat exchanger members, each enclosing a respective first channel (12), wherein a second channel (7) is formed between the at least two heat exchanger members (10, 10). At least one of the heat exchanger members presents through hole providing access from outside the heat exchanger to the second channel.

Description

Heat-exchangers of the plate type, oil cooling system and the method that is used for cold oil

Technical field

This disclosure relates to heat exchanger, and relates in particular the heat exchanger that is suitable for as the oil cooler in the heavy vehicle.

This disclosure is specifically related to a so-called single current and integrates (SFI) formula plate heat exchanger, namely, one of fluid circuit is incorporated into one of them heat exchanger with the form of plate bundle, and this heat exchanger immerses in another fluid circuit basically, and this another fluid circuit is typically by a cavity sealing that this heat exchanger wherein has been installed.

Yet this disclosure also is applicable to so-called two (or more) and flows integrated heat exchanger, that is, all fluid circuits are incorporated into wherein heat exchanger with the form of plate bundle, and therefore these heat exchangers do not need to be installed in the cavity of a sealing.

Background of invention

A kind of heat exchanger as the oil cooler in the heavy vehicle for example can be formed by a plurality of parallel plates, these parallel plates can be stacked as so that between these plates a plurality of parallel channels of formation.Typically, be arranged to carry flow of cooling medium every a passage, and other passage is arranged to carry the MEDIA FLOW of heating.These plates can be brazed together to form a single heat exchanger unit.

In (for example) WO90/13394A1 and WO2004027334A1, disclosed the basic principle that is used to form a kind of like this heat exchanger.

The integrated heat exchanger of a kind of single current is the heat exchanger that a kind of medium is carried in inside, and basically is dipped in the another kind of medium.

During use, heat exchanger typically is arranged in the cavity, make cooling medium flow through this cavity, the medium that generates heat simultaneously is fed an entrance opening that passes this heat exchanger, pass a plurality of passages for this heating medium, extract afterwards the heating medium of cooling by an exit opening of this heat exchanger.Therefore, be used for these passages of this cooling medium at least part of opening of this cavity.

JP 2005337528A has disclosed a plurality of extensions of utilizing around the oil duct of the oil cooler that is used for automobile or a circular ridge in order to eliminate the packing ring that originally is used between the heat exchanger sheet, in order to the structural intergrity of heat exchanger is provided in the zone of the power of the rising that stands to cause because of oil pressure.

In the heat exchanger of this type, desirable is the efficient that improves heat exchanger, makes it possible to like this realize greatly cooling by a less and/or lighter heat exchanger.

Yet, when the design heat exchanger, both needed to consider the intensity aspect of heat exchanger self, and needed again to consider the installation aspect, the position that comprises the shape in the space that heat exchanger remains to be mounted and be respectively applied to port and the inlet/outlet of medium to be cooled and cooling medium.

Therefore, keep simultaneously or improve with regard to the intensity and efficient of heat exchanger with regard to the free degree that increase is provided in the heat exchanger designs, exist a kind of needs for further technical development.

General introduction

The general purpose of this disclosure provides a kind of heat exchanger and a kind of heat exchanger system of alleviating or eliminating these defectives of prior art.

The specific purpose of this disclosure provides and allows to have a kind of heat exchanger and a kind of heat exchanger system that intensity and the efficient of heat exchanger were kept or improved to the free degree simultaneously at design aspect.

Another purpose of this disclosure provides a kind of lighter and/or compacter heat exchanger system.

The present invention is by appended independent claims, limit by a plurality of embodiments of setting forth in dependent claims, accompanying drawing and following description.

According to first aspect, provide a kind of heat-exchangers of the plate type for oil cooler at this, this heat-exchangers of the plate type comprises: at least two heat exchanger members, the first passage of each self-enclosed correspondence of these heat exchanger members; An ingress port is used for a kind of medium is delivered to these first passages; And an outlet port, be used for extracting this medium from these first passages.Between these two heat exchanger members, form a second channel at least.A kind of medium that is present in this second channel is isolated with a kind of medium that is present in this first passage.There is a through hole in these heat exchanger members at least one or connects depression, this through hole or connect depression and pass this first passage from a face of this heat exchanger member and extend on second of this heat exchanger member, opposing face and provide from this heat exchanger outside to the entrance of this second channel.

Should be understood that, as common in heat exchanger, this first passage and this second channel is isolated from each other and therefore be UNICOM not each other.

By above-mentioned heat exchanger, might increase effective heat exchange area.Be used for a plurality of bolts that heat exchanger is attached on the wall of the cavity that has wherein arranged this heat exchanger are engaged with an installing plate and can be enterable by this through hole at the rear side of this heat exchanger.Alternately or as a kind of replenish, can provide a depression with an extension in the wall that holds cavity.

This second channel can be open on a direction parallel with the principal plane of these heat exchanger members.For example, this second channel can be open in the short end section of heat exchanger.

Therefore therefore, might on the effective coverage of heat exchanger (" footprint "), more freely locate a plurality of bolts hole or depression, and utilize can be for the major part in the space of this heat exchanger.Can there be the through hole of a correspondence in these heat exchanger members or connects depression, and wherein these through holes or perforation depression can be basically mutually alignment.

This through hole or perforation depression can be spaced apart with all neighborings of heat exchanger member.

Should " through hole or perforation depression are spaced apart with all neighborings of heat exchanger member " mean effectively that the medium that flows can flow around this through hole or perforation depression in second first passage.

An edge that limits this through hole or connect depression can intersect at a corresponding joining place with an edge of heat exchanger, can there be a central angle in this through hole or perforation depression, there is the point of contact of a correspondence in many sides of this central angle at this corresponding joining place, and this central angle can be approximately less than 180 degree, approximately less than 135 degree or approximately less than 90 degree.

Therefore, this through hole or perforation depression can be positioned at an edge part office of heat exchanger.

Can there be this through hole of next-door neighbour in the heat exchanger plate of the heat exchanger member of two separation (these heat exchanger plates towards each other) or connects depression and/or at least one corresponding extension that oily port arranges, and these extensions can be mutually against.

The intensity that this type of extension provides increase is simultaneously so that minimize the negative effect of heating surface.When being combined with these through holes or perforation recess groups as mentioned above, this can be particularly advantageous, and this is because will be so that another heating surface is available around these oily ports.

These towards each other heat exchanger plate can exist a plurality of against extension.

In these extensions at least one can be formed a ridge.

At least two in these extensions can have different shapes.

These against extension can be coupled to each other.Can pass through (for example) melting welding, brazing, soldering or adhesive realizes connecting.

This heat exchanger may further include the 3rd heat exchanger member, the 3rd heat exchanger member is arranged to one of contiguous these two heat exchanger members and has a through hole or connect depression, this through hole or perforation depression are alignd with other through holes or perforation depression along the normal of the principal plane of this heat exchanger, wherein can arrange at least one packing ring between the described heat exchanger member in the 3rd heat exchanger member and this two heat exchanger members.

This heat exchanger may further include a mounting flange, and there is a depression in this mounting flange, and this depression is oriented to hold at least one in these extensions.A kind of like this mounting flange can use with any heat exchanger that has a plurality of extensions, also can use in the situation that does not have through hole or depression.

Can there be the through hole of a correspondence in these at least two heat exchanger members or connects depression, and these corresponding through holes or connect depression can be at least part of overlapped, thereby form one group of overlapping through hole or connect depression.This heat exchanger may further include at least one installation component, and there is an installing hole in this installation component, and this installing hole is can be enterable by these overlapping through holes or perforation depression.

In replacement scheme, can there be the through hole of a correspondence in all heat exchanger members that are not this heat exchanger or connects depression.

Through hole of one of these heat exchanger members or connect depression can less than in these heat exchanger members another an overlapping through hole or connect depression.

Can there be the through hole of a correspondence in all heat exchanger members or connects depression, and these through holes or connect depression can be along the basically mutually alignment of normal of the principal plane of these heat exchanger members, thereby form the through hole of one group of alignment or connect depression.

The through hole of first group of alignment or connect depression can be arranged to a longitudinal centre line with respect to the center of passing first an oily port that is associated become first angle and with the center of this first oily port at a distance of first distance, and the through hole of second group of alignment or connect depression can be arranged to respect to this longitudinal centre line become second angle and with the center of this first oily port at a distance of a second distance.

This first distance can equate basically with this second distance.This first angle and this second angle can differ about 180 degree.In a replacement scheme, this first angle and this second angle can differ less than 180 degree, approximately less than 135 degree or approximately less than 90 degree.In another replacement scheme, this first angle and this second angle can differ more than 180 degree, more than about 225 degree or more than about 270 degree.

The through hole of first group of alignment or connect on first side of a longitudinal centre line at center that depression can be arranged at a plurality of oily ports that pass this heat exchanger, and the through hole of second group of alignment or connect depression and can be arranged on the second side of this longitudinal centre line.

The horizontal line and this longitudinal centre line that pass the through hole of these two groups alignment or the center extension that perforation is caved in can be perpendicular.

Pass the through holes of these two groups alignment or connect a horizontal line that the center of depression extends and can have an angle with this center line, this angle is approximately less than 90 degree, or approximately less than 75 degree, or approximately less than 60 degree or approximately less than 45 degree.

Should be understood that, a heat exchanger can have many through holes to alignment or connect recess groups, wherein a pair of x wire and this longitudinal centre line can be perpendicular, and another right x wire can exist approximately less than 90 angles of spending with this longitudinal centre line.

In these x wires one or more can intersect with an oily port.In one embodiment, center extension that x wire can pass an oily port.

Can there be at least two through holes in these heat exchanger members at least one or connect these through holes of depression or connect depression to be provided from this heat exchanger outside to the entrance of second channel.

According to second aspect, provide a kind of heat exchanger for oil cooler at this, this heat exchanger comprises at least three stacking heat exchanger members, the first passage of each self-enclosed correspondence of these heat exchanger members.Form the second channel of a correspondence between adjacent the two in described heat exchanger member.Oily port passes that these heat exchanger members extend and is connected with corresponding first passage.At least one corresponding extension that a plurality of hot surfaces of first pair of adjacent heat exchanger member (these hot surfaces facing each other and form a second channel that is associated) exist this oil port of next-door neighbour to arrange, and wherein these extensions mutually against.The second pair of adjacent heat exchanger member extend by the substantial portion around the girth of this oil port at least one basically the member on plane (for example, packing ring) separate.

According to the third aspect, provide a kind of oil cooling system at this, this oil cooling system comprises a cavity, this cavity has a liquid cooling medium entrance and a liquid cooling medium outlet; An oil export that is used for that an oil-in of oil to be cooled is arranged and is used for the oil of cooling; And an aforesaid heat exchanger, described heat exchanger is closed in the described cavity basically.

Second channel can form by at least part of cavity by wherein having arranged this heat exchanger.

According to fourth aspect, provide the aforesaid oil cooling system of a kind of usefulness to cool off the method for the oil in the vehicle at this, the method comprises that making oil to be cooled pass first passage from the oil-in flow to oil export, and makes liquid cooling medium pass second channel from the liquid cooling medium entrance to flow to liquid cooling medium outlet.

Description of drawings

Fig. 1 is the perspective schematic view for a heat exchanger of an oil cooling system.

Fig. 1 a to Fig. 1 e is the cross sectional view along the heat exchanger of Fig. 1.

Fig. 2 a to Fig. 2 d is the partial cross section view of the alternate embodiment of heat exchanger member.

Fig. 3 a to Fig. 3 b is the cross sectional view for the alternate embodiment of the heat exchanger of oil cooler.

Fig. 4 a to Fig. 4 b is the sketch of oil cooling system.

Fig. 5 a to Fig. 5 d is the perspective schematic view of the alternate embodiment of heat exchanger member.

Fig. 6 a to Fig. 6 b has schematically showed a pair of heat exchanger member according to an alternate embodiment.

Fig. 7 is the diagrammatic cross-sectional view according to the part of a heat exchanger of another kind structure.

Fig. 8 is the schematic diagram according to a heat exchanger member of another embodiment.

Fig. 9 a to Fig. 9 c has schematically showed a mounting flange.

The explanation of embodiment

Fig. 1 is the schematic diagram for a heat exchanger 1 of oil cooling system.This heat exchanger is intended to such as being mounted of showing among Fig. 4 a to Fig. 4 b, that is, basically longitudinally be installed in the cavity 8, and this cavity can be partly formed by a cluster engine of vehicle.Heat exchanger 1 have by a first passage 12 with are connected the oily ports 3,4 that cooling agent opening 5,6 connects, these cooling agent openings allow ANALYSIS OF COOLANT FLOW to pass the second channel 7 of a plurality of correspondences of heat exchanger 1.First passage 12 separates fully with second channel 7, like this so that pass their fluid and can not be in contact with one another.

Each a pair of heat exchanger plate that is linked together 17,18 that freely forms a heat exchanger member 10 of these first passages 12 limits.These heat exchanger plates can be linked together by (for example) melting welding, brazing, soldering or adhesive.The edge of these heat exchanger plates can be folded relative to each other as shown in Fig. 2 a to Fig. 2 d.This both had been applicable to the neighboring, was applicable to again the edge at a plurality of through holes or

perforation depression

9,11 and/or a plurality of oily port 3,4 places.

Heat exchanger 1 can further have a plurality of mounting

flange

2a, 2b, and these mounting flanges are intended to for the wall that heat exchanger 1 is fixed to cavity 8.These mounting

flanges

2a, 2b can have for a plurality of oily ports 3,4 hole and/or

bolt hole

20a, 20b.

At each oily port 3,4 places, be formed with an inlet/outlet passage, this inlet/outlet passage can extend through all heat exchanger members 10 so that these oily ports 3,4 are connected to corresponding first passage 12.A side opposite with port side (upside among Fig. 1) of this heat exchanger can be equipped with oil duct lid 3a, a 4a who closes this inlet/outlet passage.

Specifically referring to Fig. 1 a, Fig. 1 c and Fig. 1 d, heat exchanger 1 can have provides a plurality of through holes 9 that lead to mounting flange 2a, 2b.The diameter of these through holes 9 can be greater than the bolt hole 20a that is associated, the diameter of 20b, like this so that can pass this through hole introducing fixture (for example, screw, bolt or rivet (not shown)) and allow the head part of this fixture to engage with mounting

flange

2a, 2b.

As shown in Fig. 1 and Fig. 1 a, can be around oily port 3,4, and also can around these through holes 9, provide from

heat exchanger plate

17,18 extension 170,180.An extension 170 of one of these heat exchanger plates 17 of the first heat exchanger member 10 can be with second, a corresponding extension 180 of a heat exchanger plate 18 of adjacent heat exchanger member 10 aligns, like this so that these extensions 170,180 contact each other.These extensions 170,180 can be coupled to each other together by (for example) melting welding, brazing, soldering or adhesive.Can be by the material that forms these heat exchange components being carried out punching press or bores a hole to provide a plurality of extensions.Alternately, can with Material Addition to the surface of this heat exchanger member to form these extensions.

Referring to Fig. 2 a to Fig. 2 d, disclosed the different modes that is connected with

heat exchanger plate

17,18 edge.

In Fig. 2 a, the two folded about 90 degree in edge of upper board 17 and lower panel 18, these marginal portions will be overlapping along the thickness direction of this heat exchanger member like this.Shown in specific embodiments in, lower panel extends beyond upper board, like this so that the vertical part of lower panel 18 in the vertical portion of upper board 17 exceptionally.Therefore, these plates with a plane of the principal plane perpendicular of this heat exchanger member in connect.

In Fig. 2 b, the two edge of upper board 17 and lower panel 18 is bent so that these plates with the substantially parallel plane of the principal plane of this heat exchanger member in connect.

In Fig. 2 c, the two folded about 90 degree in edge of upper board 17 and lower panel 18, these marginal portions will be overlapping along the thickness direction of this heat exchanger member like this.Shown in specific embodiments in, upper board 17 extends beyond lower panel 18, like this so that the vertical part of upper board 17 in the vertical portion of lower panel 18 exceptionally.Therefore, these plates with a plane of the principal plane perpendicular of this heat exchanger member in connect.

In Fig. 2 d, upper board 17 there is no bending, and lower panel 18 is bent, like this to be substantially perpendicular to a wall of the principal plane of this heat exchanger member be to be formed by lower panel 18 fully.The edge of lower panel 18 is by further crooked edge with closed upper portion plate 17.

Should be noted that, although all edge configurations that disclose in Fig. 2 a to Fig. 2 d may be used to form the neighboring of these heat exchanger members, as described herein to use the edge configurations that discloses in Fig. 2 a to 2d to form through hole 9 or hold depression 11 edge also be possible.In addition, one of these configurations can be used for the neighboring, and another kind of configuration is used to through hole and/or be used for holding depression.Different configurations is used for through hole and/or is used for through hole and holds depression also is possible.

Referring to Fig. 3 a, disclosed and wherein provided an embodiment holding depression 11.In this embodiment, this depression is formed by the through hole in two uppermost heat exchanger members 10.The through hole of this uppermost heat exchanger member is slightly greater than the through hole of the second high heat exchanger member.Will be appreciated that, form a plurality of through holes that hold depression and may be provided in will (for example) extension being contained in and remain heat exchanger is positioned in wherein the cavity 8 necessary heat exchanger member as many.

Referring to Fig. 3 b, disclosed extension 170 wherein, 180 at this and used a embodiment in same group of through hole that aligns (enter the hole, hold depression) or a plurality of oily ports with packing ring 19.The combination of a plurality of extensions and a plurality of packing rings can be used for by in the weight-strenth ratio that makes simultaneously (for example) this heat exchanger between some right heat exchanger member 10 with packing ring between other right heat exchanger members with extension optimization.For example, can in the very large situation of the power that affects these heat exchanger members, use a plurality of packing rings 19, and can stand to use in the situation of not too serious power a plurality of extensions 170,180 at these heat exchanger members.

Might replace between a plurality of packing rings and a plurality of extension, so that a plurality of packing ring is used every a contact, and a plurality of extension is used for other contact, shows such as the left-hand part of Fig. 3 b like this.

Alternately or as a kind of replenish, a plurality of packing rings might be used for more than two adjacent heat exchanger members, and a plurality of extensions are used for one or several of these heat exchanger members.

Referring to Fig. 4 a to Fig. 4 b, showed how to utilize this to disclose to improve design freedom at this.

In Fig. 4 a, the coolant flow Fc that comes in and the coolant flow of outflow are mobile in substantially the same direction.Both sides at a longitudinal centre line of heat exchanger 1 provide a plurality of bolts hole 9.Yet a plurality of bolts hole 9 are not along aliging with the vertical line of this center line, but along a line alignment that has an angle β who is different from 90 ° with respect to this longitudinal centre line.This angle can be approximately less than 80 °, approximately less than 70 °, approximately less than 60 °, approximately less than 50 °, approximately less than 40 ° or approximately less than 30 °.At least one oily port 3,4 also can align as these bolts hole 9 at the same line.

In Fig. 4 a, Fig. 4 b, define a longitudinal centre line at the center of passing these oily ports.Therefore, angle β is an absolute angle for the position of the through hole of every group of alignment.Can limit the declinate θ between these holes.In the situation of the single line alignment at the center of passing oily port, this declinate θ will be 180 degree in these holes.

In Fig. 4 b, showed an embodiment at this, the coolant flow Fc that wherein comes in arrives at an angle with the longitudinal centre line with heat exchanger 1, and the coolant flow Fc and this longitudinal centre line that wherein flow out are substantially parallel.First pair and the second pair of bolt hole 9 may be provided as so that between these lines (to the bolt hole 9 of reply along these lines alignment), if necessary different between these right bolts hole 9 at the angle β of the center of oily port, through hole or the bolt hole of the alignment of other this type of group then can be provided in the oily port of a correspondence, for example, 3,4 or 5 groups of through holes or bolt hole.

Referring to Fig. 5 a to Fig. 5 d, this showed can from oily port 3,4 and/or a plurality of different extension that hole/holding depression is combined with/ridge pattern that enters.

Referring to Fig. 6 a to Fig. 6 b, showed that at this this extension/ridge pattern may be different between a pair of heat exchanger member that is linked together 10.As demonstrated, first ridge 180 ' of the first heat exchanger plate 18 ' can extend upward a first party, and second ridge 170 ' of the second heat exchanger member 17 ' can extend one second, different directions.Yet this first direction and this second direction can be basically orthogonal, can be provided at arbitrarily angled between 0 ° and 90 ° between a plurality of ridges of adjacent heat exchanger member 10.

Fig. 7 shows by a plurality of heat exchanger members 10 ' " a, 10 ' " a heat exchanger that b forms, these heat exchanger members form a basically member of tubulose separately.Can be by rolling or fold a metallic plate or forming each member by extruding.In any situation, can after forming this tubular element, carry out a pressing step and/or insert an other flanged structure increasing heat transmission.

The formation heat exchanger that can show such as a plurality of identical heat exchanger members.Fig. 8 has showed wherein through hole 9 ' and heat exchanger member 10 ^IVAn embodiment intersecting of marginal portion.There is a central angle c in this through hole, and there is the point of contact of a correspondence in many sides of this central angle, this point of contact can with overlap with intersection point between the bore edges in corresponding marginal portion.This central angle can be approximately less than 180 degree, approximately less than 135 degree or approximately less than 90 degree.In this connected, " " center " is to be circular in the hole basically or to be will be counted as geometric center in the oval-shaped situation basically, is the center of gravity that is counted as this through hole in the asymmetric situation at this through hole perhaps.

Fig. 9 a to Fig. 9 c has schematically showed a mounting flange 2 ', and this mounting flange is adapted to heat exchanger disclosed here and uses.There is an access opening 21 in this mounting flange in applicable situation, this access opening extends through mounting flange 2 ' and is used for introducing or extracting heating medium or cooling medium.This mounting flange 2 ' also exists one or

more depression

23a, 23b, 23c, 23d, 23e, 23f, 23g, 23h, and these depressions are adapted to for being formed at extension of this heat exchanger plate and are contained in the zone that is covered by mounting flange 2 '.A kind of mounting flange by such might provide a kind of heat exchanger, and wherein all heat exchanger members all are identical, thus eliminated to provide will from the close-fitting needs different, outmost heat exchanger member of mounting flange.

This mounting flange may further include one or more fixing holes 22.This mounting flange can be formed by single plate, and wherein these depressions are formed and can be used as the depression that blind hole or through hole provide.In disclosed embodiment, mounting flange 2 ' is formed by the plate of

material

24,25 of two separation, wherein the first plate of material 24 can only utilize access opening 21 and a plurality of fixing hole 22 to form, and another plate also utilizes a plurality of through holes that form these

depressions

23a, 23b, 23c, 23d, 23e, 23f, 23g, 23h to form.At this moment, the plate of material of formation mounting flange 2 ' can have different materials.For example, one of these materials (for example, the first plate 24) can be selected for suitable strength, and another (for example, second plate 25) can be selected to match with the brazing process.

Claims

1. heat-exchangers of the plate type that is used for oil cooler, this heat-exchangers of the plate type comprises:

At least two heat exchanger members (10), the first passage (12) of each self-enclosed correspondence of these heat exchanger members;

An ingress port, this ingress port are used for a kind of medium is delivered to these first passages, and

An outlet port, this outlet port is used for extracting this medium from these first passages, wherein, between these two heat exchanger members (10), form a second channel (7) at least, a kind of medium that is present in this second channel is isolated with a kind of medium that is present in this first passage, and

This second channel is arranged to link with a space wherein sealing this heat exchanger;

It is characterized in that,

There is a through hole in these heat exchanger members at least one or connects depression (9,11), this through hole or connect depression and pass this first passage from a face of this heat exchanger member and extend on second of this heat exchanger member, opposing face and provide from this heat exchanger outside to the entrance of this second channel (7).

2. heat exchanger as claimed in claim 1, wherein this through hole is isolated with all neighborings of this heat exchanger member (10).

3. heat exchanger as claimed in claim 1, wherein

The edge that limits this through hole or connect depression and an edge of this heat exchanger are crossing at a corresponding joining place,

There is a central angle in this through hole, and there is the point of contact of a correspondence in many sides of this central angle at this corresponding joining place, and

This central angle is approximately less than 180 degree, approximately less than 135 degree or approximately less than 90 degree.

4. according to any one of the preceding claims heat exchanger, a plurality of heat exchanger plates of the heat exchanger member of two separation wherein, these heat exchanger plates are towards each other, there is this through hole (9 of next-door neighbour, 11) and/or an oily port (3,4) at least one the corresponding extension (170,180 that arranges; 170 ', 180 '), and wherein these extensions mutually against.

5. heat exchanger as claimed in claim 4, wherein towards each other these heat exchanger plates exist a plurality of against extension.

6. such as claim 4 or 5 described heat exchangers, wherein at least one in these extensions is formed a ridge.

7. such as any one described heat exchanger in the claim 4 to 6, wherein at least two in these extensions have different shapes.

8. such as any one described heat exchanger in the claim 4 to 7, wherein these against extension be coupled to each other.

9. such as any one described heat exchanger in the claim 4 to 8, wherein this heat exchanger comprises:

The 3rd heat exchanger member, the 3rd heat exchanger member is arranged to one of contiguous these two heat exchanger members, and have a through hole or connect depression, this through hole or perforation depression are alignd with other through holes or perforation depression along the normal of a principal plane of these heat exchanger members

Wherein arrange at least one packing ring between one of described in the 3rd heat exchanger member and this two heat exchanger members.

10. such as any one described heat exchanger in the claim 4 to 9, further comprise a mounting flange (2 '), there is a depression in this mounting flange, and this depression is oriented to hold at least one in these extensions.

11. as any one described heat exchanger in the above claim, wherein there is the through hole of a correspondence at least two heat exchanger members or connects depression, and the through hole of wherein said correspondence or perforation depression overlap each other at least in part, thereby form one group of overlapping through hole or connect depression.

12. heat exchanger as claimed in claim 11 further comprises at least one installation component, there is an installing hole in this installation component, and this installing hole passes these overlapping through holes or connects depression is enterable.

13. such as any one described heat exchanger in the claim 1 to 10, all there is the through hole of a correspondence in all heat exchanger members that wherein are not this heat exchanger or connects depression.

14. such as any one described heat exchanger in the claim 11 to 13, wherein one of these heat exchanger members through hole or connect depression less than in these heat exchanger members another an overlapping through hole or connect depression.

15. such as any one described heat exchanger in the above claim, wherein these through holes or perforation depression are in alignment with each other basically along the normal of a principal plane of these heat exchanger members, cave in thereby form the through hole of one group of alignment or connect.

16. heat exchanger as claimed in claim 15, wherein

The through hole of first group of alignment or connect depression be arranged to a longitudinal centre line with respect to the center of a plurality of oily ports that pass this heat exchanger become first angle and with the center of first an oily port at a distance of first distance, and

The through hole of second group of alignment or connect depression be arranged to respect to this longitudinal centre line become second angle and with the center of this first oily port at a distance of a second distance.

17. heat exchanger as claimed in claim 16, wherein this first distance equates basically with this second distance.

18. such as claim 16 or 17 described heat exchangers, wherein this first angle and this second angle differ about 180 degree.

19. such as claim 16 or 18 described heat exchangers, wherein this first angle and this second angle differ less than 180 degree, approximately less than 135 degree or approximately less than 90 degree.

20. such as claim 16 or 18 described heat exchangers, wherein this first angle and this second angle differ more than 180 degree, more than about 225 degree or more than about 270 degree.

21. such as any one described heat exchanger in the claim 15 to 20, the wherein through hole of first group of alignment or connect on first side of a longitudinal centre line at center that depression is arranged at a plurality of oily ports that pass this heat exchanger, and the through hole of second group of alignment or connect depression and be arranged on the second side of this longitudinal centre line.

22. heat exchanger as claimed in claim 21, the x wire and this longitudinal centre line that wherein pass the center extension of these the two groups through holes that align are perpendicular.

23. heat exchanger as claimed in claim 21, there are an angle in the x wire and this longitudinal centre line that wherein pass the through hole of these two groups alignment or the center extension that perforation is caved in, this angle is spent less than 90 approximately, or approximately less than 75 degree, or approximately less than 60 degree or approximately less than 45 degree.

24. such as claim 20 or 23 described heat exchangers, wherein this x wire and an oily port intersect.

25. as any one described heat exchanger in the above claim, wherein there are at least two through holes at least one in these heat exchanger members or connect depression (9,11), these through holes or perforation depression provide from this heat exchanger outside to the entrance of this second channel (7).

26. a heat exchanger that is used for oil cooler, this heat exchanger comprises:

At least three stacking heat exchanger members (10), the first passage (12) of each self-enclosed correspondence of these heat exchanger members;

Wherein form the second channel (7) of a correspondence between two adjacent heat exchanger members in described heat exchanger member (10);

One of them oily port passes these heat exchanger members extensions and connects these corresponding first passages (12);

The surface of first pair of adjacent heat exchanger member wherein, these surfaces are facing each other and form a second channel that is associated, at least one the corresponding extension (170,180 that exists this oil port of next-door neighbour to arrange; 170 ', 180 '), and wherein these extensions abut against each other; And

At least one member on plane basically of extending by the substantial portion around the girth of this oil port of the second pair of adjacent heat exchanger member wherein, as, a packing ring is separated.

27. an oil cooling system comprises:

A cavity (8), this cavity have a liquid cooling medium entrance (60) and a liquid cooling medium outlet (50);

An oil export (3) that is used for that an oil-in (4) of oil to be cooled is arranged and is used for the oil of cooling; And

Such as any one described heat exchanger (10,10 ') in the above claim, described heat exchanger is closed in the described cavity (8) basically.

28. oil cooling system as claimed in claim 27, wherein this second channel is to be formed by this cavity at least in part.

29. one kind is used for the method for cooling off the oil of vehicle such as claim 27 or 28 described oil cooling systems, the method comprises:

Make oil to be cooled pass this first passage (12) from this oil-in (4) and flow to this oil export (3), and

Make liquid cooling medium pass this second channel (7) from this cooling medium entrance (60) and flow to this cooling medium outlet (50).