CN202325765U - Heat transfer unit for internal combustion engine and heat transfer unit for machine oil circulation of internal combustion engine - Google Patents
Heat transfer unit for internal combustion engine and heat transfer unit for machine oil circulation of internal combustion engine Download PDFInfo
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- CN202325765U CN202325765U CN2011201111130U CN201120111113U CN202325765U CN 202325765 U CN202325765 U CN 202325765U CN 2011201111130 U CN2011201111130 U CN 2011201111130U CN 201120111113 U CN201120111113 U CN 201120111113U CN 202325765 U CN202325765 U CN 202325765U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a heat transfer unit for an internal combustion engine and a heat transfer unit for machine oil circulation of the internal combustion engine. A combined heat transfer unit for cooling two fluids is known. The utility model provides the heat transfer unit so as to realize the temperature management in the internal combustion engine, and in addition, a bypass channel (5) for the first fluid is arranged. Preferably, a heat transfer partition wall (8) for transferring heat to the bypass channel (5) and a channel (4) through which a coolant flows is arranged for the second fluid. Therefore, the second fluid can be heated and cooled.
Description
Technical field
The utility model relates to the heat transfer unit that is used for internal-combustion engine; Said heat transfer unit has housing; In said housing, arranged at least one first passage that can flow through by first fluid to be cooled; The passage that at least one can be flow through by second fluid; With at least one passage that can flow through by freezing mixture, and the heat transfer unit that has the passage that can flow through by machine oil and at least one passage that can flow through by freezing mixture that is used for the oil circulation of internal-combustion engine, the passage that wherein can flow through by machine oil with heat conduction with can contact by the passage that freezing mixture flows through.
Background technique
The heat transfer unit of this type of combination is from known in the state of the art, and for example is used in the unit air inlet and tail gas stream cooling, or coolant/lubricant and arrange individually or be arranged in the housing that has air inlet cooling or tail gas cooling for example.The temperature of cooling off internal-combustion engine through tail gas cooling or air inlet reduces, and can reduce the content of nitrogen oxide in tail gas again with this.
Therefore, in DE 19722256C1, advised a kind of heat transfer unit, wherein exhaust gas cooler and machine oil cooler are arranged in the housing that provides, and are separated from each other through cooling water passage.Can in the space of compactness, behind the warming-up of internal-combustion engine, realize tail gas cooling and lubricant oil cooling in this way.
In addition, knownly in the warm-up period of internal-combustion engine, form higher harmful substance composition, therefore, around the exhaust gas cooler of being everlasting, design bypass passageways in modern times in the internal-combustion engine, in order to the more rapid heating of the tail gas realization internal-combustion engine through uncooled recirculation.
Therefore, for example in DE 10203003A1, disclose the tail gas heat transmitter, said tail gas heat transmitter has tail gas cooling equipment and the bypass passageways of surrounding cooling equipment in housing.Through the bypass valve that preceding connects with tail gas stream according to the running state guiding of internal-combustion engine through cooling equipment or pass through bypass passageways.
Realized the execution of the temperature treatment in the internal-combustion engine in this way, realized the heating faster of internal-combustion engine with this.In addition, the harmful substance that can be after warm-up period reduces discharging realize recirculation tail gas temperature regulation and therefore also realize the temperature regulation of internal-combustion engine.
But the problem that exists in addition is that although there is bypass passageways, warm-up period is long relatively in producing the few turbo-charged diesel motor of heat especially.In integrated heat exchanger, have problems especially, as in the machine oil tail gas heat exchanger of DE 19722256C1, having problems, wherein compare with known structure, warm-up period can not shorten, because freezing mixture flows around machine oil cooler constantly.
Summary of the invention
Therefore, the utility model technical problem to be solved is to accomplish a kind of heat transfer unit, uses said heat transfer unit can in internal-combustion engine, move the efficient temperature management, wherein simultaneously occupy-place need be minimized.In the special application of the oil circulation that is used for internal-combustion engine, should be able to save fully at the heater that in turbo-charging diesel motor, uses at present.With this, compare with known structural form, should further shorten the warm-up period that generates high harmful substance composition.
This task realizes through following mode, promptly in housing, is formed for the bypass passageways of first fluid to be cooled, can walk around at least one first passage that can be flow through by first fluid to be cooled through said bypass passageways.In this way, in heat transfer unit, in very little space, also realized temperature regulation in combined cooler.
Particular case at the heat transfer unit of the oil circulation that is used for internal-combustion engine; This task solves through following mode; Promptly in heat transfer unit, form the passage that can pass through by tail gas; Said passage also with heat conducting wall with can contact by the passage that machine oil flows through, make to realize that tail gas stream through heat is to the rapid heating of machine oil.Preferably, can by the passage that tail gas stream is crossed the bypass passageways of exhaust gas cooler.
In preferred expansion, between at least one passage that is arranged in bypass passageways and can flows through by freezing mixture that can flow through by second fluid.Realize that with this behind the passage that flows through bypass passageways and can be flow through by freezing mixture, second fluid selectively is heated or cooled.
In favourable form of implementation, the fluid mass flow of the first fluid to be cooled in bypass passageways and the first passage that can be flow through by first fluid to be cooled is through at least one controlling device may command.Therefore, can realize the temperature control of the first fluid to be cooled and second fluid.
In preferred implementing form; The fluid mass flow of the first fluid to be cooled in bypass passageways and the first passage that can be flow through by first cooling fluid to be cooled is through the second valve can regulate; Wherein first valve is arranged in the zone of housing inner exhaust gas inlet duct before the first passage that can be flow through by first fluid to be cooled, and second valve is arranged in bypass passageways in the zone of housing inner exhaust gas inlet duct before.This type of valve for example can form lobe shape, and through motorized adjustment unit phase crosscorrelation or adjusting independently of each other.With this, realized temperature control simply.
The heat transfer of the best between medium realizes through following mode; Promptly make and can have common partition wall by freezing mixture passage that flows through and the passage that can flow through by first fluid to be cooled, and with can have the second common partition wall by the passage that second fluid flows through.Two common partition walls are therefore directly as the heat bridge between the medium.
If bypass passageways have with can be by the common partition wall of the passage that second fluid flows through, then this type of also improved heat transfer causes the temperature faster of second fluid to raise.If therefore the temperature of first fluid is higher than the temperature of second fluid, then when flowing through bypass passageways, form heating to second fluid.
In preferred form of implementation, can on cross section, walk around the passage that can flow through fully by the passage that freezing mixture flows through by first fluid to be cooled.Guaranteed the optimum cooling of first fluid to be cooled with this.
According to a kind of preferred form of implementation of the utility model, at least one of passage 2,3,4,5, stretch out fin 9 from least one of partition wall 6,7,8.
Preferably, at least one fin of partition wall protrudes at least one of passage.Said fin has improved the heat transfer between the medium in addition significantly.Especially, when fin is formed in the passage of guiding gas, realized the good advantage of heat transfer aspect with this.Therefore, can conceive the continuous fin of streamwise or the independent fin of interruption.
In further form of implementation, through controlling device may command coolant flow, but make at warm-up period controlling device complete opening, can realize the obviously heating faster of second fluid with this.
According to a kind of preferred form of implementation of the utility model, can be through the fluid mass flow of controlling device 13 controls second fluid.
Also can additionally strengthen this advantage through the mass flow rate that makes second freezing mixture through the controlling device may command.
In a preferred embodiment, first fluid to be cooled is that the tail gas and second fluid are machine oil.Folding meaned in the cold start-up stage, can walked around and can be used in the combination heat transfer unit for heating machine oil more quickly through the tail gas that bypass passageways flows by the passage that tail gas stream is crossed.Under complete load, freezing mixture can be used for tail gas and the machine oil in the Cooling Heat Transfer unit.
In the structure that can make at an easy rate, heat transfer unit is processed by die-cast part, and the said part of pushing down interconnects through the rubbing contact welding.
For further reducing structure space, can heat transfer unit be integrated in the cylinder head at least in part.
Obvious is, through the heat transfer unit of structure like this, can realize the temperature treatment of the optimization of internal-combustion engine, and compares the heating period that can obviously reduce internal-combustion engine with known form of implementation.In addition, heater can comprise turbo-charging diesel motor.According to the utility model, these advantages with the structure space of minimum and with cost realize.
The utility model also relates to a kind of heat transfer unit that is used for the oil circulation of internal-combustion engine; This heat transfer unit has the passage 3 that can be flow through by machine oil and at least one passage 4 that can be flow through by freezing mixture; The passage 3 that wherein can flow through by machine oil with can contact by passage 4 heat conduction that freezing mixture flows through; It is characterized in that, be formed with the passage 5 that can cross by tail gas stream in the heat transfer unit, said passage 5 with can contact by passage 3 heat conduction that machine oil flows through.According to a kind of preferred form of implementation of the utility model, the said of formation can be bypass passageways 5 of tail gas heat transfer unit 2,4 by the passage 5 that tail gas stream is crossed in the heat transfer unit.
Description of drawings
Embodiment illustrates in the accompanying drawings and describes hereinafter.
Fig. 1 shows in the diagram of cross section and passes through the cross section according to the heat transfer unit of the utility model.
Fig. 2 shows the longitudinal section according to the heat transfer unit of the utility model of passing through Fig. 1 in entrance region.
Embodiment
Be better understanding, explain embodiment, wherein tail gas is used as second fluid as first fluid to be cooled and with machine oil, make that heat transfer unit is the tail gas/machine oil heat transfer unit of combination according to Fig. 1 and Fig. 2 according to embodiment.But this type of heat transfer unit also can be used for other cooling combination.
Heat transfer unit according to the utility model comprises heat transfer unit and the housing 1 that outwards form the border of encirclement according to Fig. 1, and said housing 1 can be configured to single-piece or multi-part type housing.In housing 1, formed the first passage 2 that to cross by tail gas stream.In addition; In housing 1, arranged the second channel 3 that can flow through by machine oil; The passage 2 that can be crossed by tail gas stream makes it on cross section, surround the passage 2 that can be crossed by tail gas stream fully through being separated by the passage 4 that freezing mixture flows through, wherein can being formed by the passage 4 that freezing mixture flows through.On the side that deviates from the passage 4 that can be flow through by freezing mixture of the passage 3 that can be flow through by machine oil, arranged bypass passageways 5, said bypass passageways 5 also can be by the tail gas stream mistake.
In passage 2,3,5, on main flow direction, stretched out fin 9, said fin 9 not only can be configured to the longitudinal fin of single-piece, and can be configured to a plurality of in succession and independent fins that be arranged in juxtaposition.Stretch out in the passage 2 that said fin 9 is crossed in bypass passageways 5 and in the passage that is flow through by machine oil 3 and by tail gas stream in the present embodiment; Wherein in passage of being crossed by tail gas stream 2 and the passage 3 that flow through by machine oil, fin stretches out from two relative pleurapophysis.This means that the tangible heat transfer for the passage 2 that can be crossed by tail gas stream improves because through ribbing in both sides, through around freezing mixture obviously improved heat transfer.For the zone of the passage 3 that can be flow through by machine oil, ribbing means from the heat transfer of freezing mixture to machine oil and improves through the rib 9 that is formed on the partition wall 7, and also can improve from the heat transfer of bypass passageways 5 through the fin 9 that is formed on the partition wall 8.
In addition, visible can be had illustrated inlet duct in Fig. 1 by the passage 4 that freezing mixture flows through, and said inlet duct is in the present embodiment in the front region of side arrangement at heat transfer unit, and flow into the passage 4 that can be flow through by freezing mixture through said inlet duct freezing mixture.Certainly, there is correspondingly not shown coolant outlet pipe in the rear area at heat transfer unit.In the zone of said coolant inlet tube 10, formed freezing mixture controlling device 11 in addition, through said freezing mixture controlling device 11 may command coolant flows with control valve form.
The machine oil inlet duct 12 that can also have lateral arrangement in this example by the passage 3 that machine oil flows through wherein on opposite side, has promptly been arranged corresponding outer pipe again in the rear area of the passage 3 that can be flow through by machine oil.At this, in the zone of machine oil inlet duct 12, also arranged the controlling device 13 that is used to regulate the machine oil volume flowrate with control valve form.
In Fig. 2, illustrate the entrance region that is used for heat transfer unit of form with gas inlet pipe 14.First controlling device 15 and second controlling device 16 in the zone of gas inlet pipe 14, have been formed with clack valve form with clack valve form.Said controlling device is arranged so that and can be closed through first clack valve 15 by the passage 2 that tail gas stream is crossed, and also can be closed through second clack valve 16 by second bypass passageways 5 that tail gas stream is crossed.Two clack valves 15,16 are selectively regulated independently of each other or each other relatively, and whether this basis only should realize that temperature control still also should realize the control of tail gas amount.
Can seal through wall 17 on the end of gas inlet pipe 14 at it by the passage that machine oil flows through.When observing, this wall 17 and the partition wall 6 that is connected with wall 17 and 8 in the zone of gas inlet pipe 14, heat transfer unit is divided into tail gas guiding channel 2 and 5 on the flow direction of tail gas.Correspondingly, partition wall 6 and housing 1 as the stop surface of clack valve 15 being used for closed channel 2, and wall 17 and housing 1 as the stop surface of clack valve 16 to be used to seal bypass passageways 5.
The not shown tail gas outer pipe that correspondingly forms is arranged on the relative side of the heat transfer unit on the flow direction of tail gas, but does not have clack valve, wherein also can clack valve 15,16 be arranged on the corresponding position on the outer pipe.
The for example possibility of this type of heat transfer unit of control in the internal-combustion engine warm-up period will be described hereinafter.
The temperature of when the internal-combustion engine cold start-up, hoping to improve oiling agent as soon as possible is to reduce friction and discharging.This is used in winter the better crew comfort when relevant with the cockpit heating in addition.
When cold start-up, exhaust gas channel 2 can be through closing of controlling device 15 be walked around, and makes that being in the position of opening and hot exhaust gas at this stage clack valve 16 can flow and be not cooled through bypass passageways 5.Through being connected of partition wall 8, tail gas stream has caused the rapid heating of machine oil in the passage 3 of guiding machine oil through this tail gas stream and bypass passageways 5 and oil passageway 3.At this moment, preferably control valve 11 is closed, feasible no freezing mixture flows through heat transfer unit and therefore only has the heating for machine oil, and the volume flowrate of said machine oil can be regulated through controlling device 13 in this stage.
After this warm-up period, can clack valve 16 be closed and clack valve 15 is opened, make that the formation nitrogen oxide passes through exhaust gas channel 2 guiding to present tail gas stream in the burning in order to be reduced in, and tail gas arrives no longer in the bypass passageways 5.Simultaneously, control valve 11 is opened, and makes exhaust gas channel 2 to be cooled now agent is streamed and oil passageway 3 conducts heat through partition wall 7 and coolant channel 4.Obvious, oil passageway 3 switch according to controlling device 15,16 in this type of is arranged can have the function of machine oil cooler and the function of lube oil heater.
Further in service after warm-up period finishes can be depending on engine features data and existing engine load and further regulates through controlling device 11,15,16, minimizes to obtain further harmful substance.
Given simple structure form of explanation can this type of cooler be processed by a plurality of parts in the high pressure die casting process, and these parts are connected through the rubbing contact welding method.
Obvious is through the tail gas that has combination of heat transfer unit and this class formation of machine oil cooler and the bypass passageways that is used for the machine oil heating, through obviously shortening warm-up period, can obviously reduce the hazardous emission of vehicle especially.Can save heater fully, make employed number of components obviously reduce.
Should be clear that the mutual structure that also can conceive other passage according to the temperature treatment and the employed method of hope, wherein especially through having realized the position advantage as carrying out heating and cooling on the passage of passage 3 in the present embodiment.
Certainly, the utility model is not restricted to illustrated form of implementation.Therefore, also can accomplish other heat transfer unit, the agent that wherein only can be cooled by the passage that machine oil flows through is cooled off and is heated by tail gas.Certainly also can conceive the variation that for example also has plate bundle and tube bank form of the structure of the passage that is flow through, like different location as the input and output pipe.
Claims (15)
1. heat transfer unit that is used for internal-combustion engine, this heat transfer unit has:
Housing (1), wherein
Arrange the first passage (2) that at least one can be flow through by first fluid to be cooled,
Arrange passage (3) that at least one can be flow through by second fluid and
Arrange the passage (4) that at least one can be flow through by freezing mixture, it is characterized in that,
In said housing (1), formed the bypass passageways (5) that is used for first fluid to be cooled, can walk around the first passage (2) that at least one can be flow through by first fluid to be cooled through said bypass passageways (5).
2. the heat transfer unit that is used for internal-combustion engine according to claim 1 is characterized in that, at least one can be arranged in bypass passageways (5) by the passage (3) that second fluid flows through and the passage (4) that can flow through by freezing mixture between.
3. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2; It is characterized in that, first fluid to be cooled in bypass passageways (5) with the first passage (2) that can flow through by first fluid to be cooled in the fluid mass flow can pass through at least one controlling device (15,16) and control.
4. the heat transfer unit that is used for internal-combustion engine according to claim 3; It is characterized in that; First fluid to be cooled in bypass passageways (5) with the first passage (2) that can flow through by first fluid to be cooled in the fluid mass flow can be through two valves (15,16) adjusting; Wherein, Be arranged in the first passage (2) that can flow through in the zone of the gas inlet pipe (14) of first valve (15) in housing (1) before, and be arranged in bypass passageways (5) before in the zone of the gas inlet pipe (14) of second valve (16) in housing (1) by fluid to be cooled.
5. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2; It is characterized in that; The passage (4) that can be flow through by freezing mixture have the first common partition wall (6) with the passage (2) that can be flow through by first fluid to be cooled, and with can have the second common partition wall (7) by the passage (3) that second fluid flows through.
6. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, bypass passageways (5) with can have common partition wall (8) by the passage (4) that second fluid flows through.
7. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, can on cross section, surround the passage (2) that can be flow through by first fluid to be cooled fully by the passage (4) that freezing mixture flows through.
8. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, at least one of passage (2,3,4,5), stretches out fin (9) from least one of partition wall (6,7,8).
9. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, can pass through controlling device (11) control coolant flow.
10. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, can pass through the fluid mass flow of controlling device (13) control second fluid.
11. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, first fluid to be cooled is that the tail gas and second fluid are machine oil.
12. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that, heat transfer unit constitutes by weld interconnective high pressure die casting parts through rubbing contact.
13. the heat transfer unit that is used for internal-combustion engine according to claim 1 and 2 is characterized in that heat transfer unit is integrated in the cylinder head at least in part.
14. heat transfer unit that is used for the oil circulation of internal-combustion engine; This heat transfer unit has the passage (4) that the passage (3) that can be flow through by machine oil and at least one can be flow through by freezing mixture; The passage (3) that wherein can flow through by machine oil with can contact by passage (4) heat conduction that freezing mixture flows through; It is characterized in that; The second channel (5) that is formed with the first passage (2) that can be crossed by tail gas stream in the heat transfer unit and can be crossed by tail gas stream can be walked around the said first passage (2) that can be flow through by first fluid to be cooled by the second channel (5) that tail gas stream is crossed through said, the said second channel (5) that can cross by tail gas stream with can contact by passage (3) heat conduction that machine oil flows through.
15. the heat transfer unit that is used for the oil circulation of internal-combustion engine according to claim 14 is characterized in that, can be the bypass passageways (5) of tail gas heat transfer unit (2,4) by the passage (5) that tail gas stream is crossed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201111130U CN202325765U (en) | 2011-04-15 | 2011-04-15 | Heat transfer unit for internal combustion engine and heat transfer unit for machine oil circulation of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201111130U CN202325765U (en) | 2011-04-15 | 2011-04-15 | Heat transfer unit for internal combustion engine and heat transfer unit for machine oil circulation of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325765U true CN202325765U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201111130U Expired - Lifetime CN202325765U (en) | 2011-04-15 | 2011-04-15 | Heat transfer unit for internal combustion engine and heat transfer unit for machine oil circulation of internal combustion engine |
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| Country | Link |
|---|---|
| CN (1) | CN202325765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964507A (en) * | 2020-08-28 | 2020-11-20 | 浙江银轮机械股份有限公司 | Heat exchanger and heat exchange system |
-
2011
- 2011-04-15 CN CN2011201111130U patent/CN202325765U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964507A (en) * | 2020-08-28 | 2020-11-20 | 浙江银轮机械股份有限公司 | Heat exchanger and heat exchange system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |