CN104685180B - For the liquid-cooling system of vehicle internal combustion engine - Google Patents

For the liquid-cooling system of vehicle internal combustion engine Download PDF

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Publication number
CN104685180B
CN104685180B CN201380050061.2A CN201380050061A CN104685180B CN 104685180 B CN104685180 B CN 104685180B CN 201380050061 A CN201380050061 A CN 201380050061A CN 104685180 B CN104685180 B CN 104685180B
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China
Prior art keywords
cooling
circuit
liquid
space
coolant
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CN201380050061.2A
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Chinese (zh)
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CN104685180A (en
Inventor
C·诺马耶
G·富卡尔
H·皮图切尼格
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AVL List GmbH
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AVL List GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • F01N3/046—Exhaust manifolds with cooling jacket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/028—Cooling cylinders and cylinder heads in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/243—Cylinder heads and inlet or exhaust manifolds integrally cast together

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The present invention relates to the liquid-cooling systems (K) of the internal combustion engine (2) with cylinder head (3) of vehicle, cylinder head (3) includes integrated exhaust manifolds (7), wherein cylinder head (3) has to cool down and at least the first cooling space (5) of combustion chamber adjacent area and at least the second cooling space (6) for cooled exhaust manifold (7), wherein flow may pass through the first and second cooling spaces (5,6) in parallel apart from each other.If at least one oil cooler (14) and/or at least one vehicle heating element (15) and second cooling cavity space (6) arranged in series in cooling circuit (1), can be used simple mode to improve cooling management.

Description

For the liquid-cooling system of vehicle internal combustion engine
Technical field
The present invention relates to a kind of liquid-cooling system for vehicle internal combustion engine, which has cylinder head, the cylinder Lid includes integrated exhaust manifolds, and wherein cylinder head has at least one first cooling for cooling down with combustion chamber adjacent area Space and at least one second cooling space for cooled exhaust manifold, first and second cooling space provide parallel , separated cooled flow path.
Background technology
Exhaust manifold is integrated in cylinder head from known to U.S. Patent No. 200,5/0,087,154 A1.By top under The main cooling space of portion part coolant jacket composition is thermally contacted with exhaust manifold.
0 856 650 A1 of EP describe a kind of cooling system for outboard motor, are left in engine by the board The discharge duct of combustion chamber bends to U-shaped in cylinder head, is located at cylinder-head plane for connecting the lug area of exhaust manifold It is interior.Exhaust manifold is integrated in cylinder head.
U.S. Patent No. 7,051,685 B2 discloses a kind of cylinder head with integrated exhaust manifolds, wherein being vented Manifold is surrounded by the first and second coolant jackets, and two coolant jackets are connect via with the flow path of cylinder head cast together.The One and second coolant jacket navigate to over each other.
500 442 B1 of AT describe a kind of cylinder head of the internal combustion engine for liquid cooling, including surrounding integrated form row First central cooling space of gas manifold and the second cooling space, wherein the cooling agent for flowing through the second cooling space can be with flowing through the The cooling agent of one cooling space is separately controlled.
From 2011/061248 A1 of WO, it is known that a kind of for liquid cooling and cold with the liquid being integrated in cylinder head But the cylinder head of the internal combustion engine of exhaust manifold, wherein cylinder head have cooling agent flowed through at least one first and one second Coolant jacket, and wherein the region of exhaust manifold by the second coolant jacket at least partially around.First and second coolant jackets are via extremely Few hole flowing connection.
It is known by vehicle cooler and oil cooler it is in parallel with the cooling space of exhaust manifold positioning.In order to avoid cooling event Barrier, needs relatively expensive cooling system.
Invention content
The purpose of the present invention is improve the cooling management for the internal combustion engine for being initially mentioned type as simply as possible.
According to the present invention, the purpose is by proposing at least one oil cooler and/or at least one vehicle in cooling circuit Heating element is realized with the second cooling space arranged in series.
Oil cooler can be located in the upstream of the second cooling space in cooling circuit, and vehicle heating element is cooling back The downstream of the second cooling space is located in road.
If the first part's cooling circuit for leading to the first cooling space and the second part for leading to the second cooling space are cold But circuit branches out in coolant pump downstream from common main cooling circuit, is especially advantageous.
In cooling pump upstream, the first double acting thermostatic valve may be arranged at main cooling circuit from coolant chiller and around In the region that the supplement heat rejecter circuit of supercooling agent cooler is met.
First cooling space is connect preferably by the first coolant lines with supplement heat rejecter circuit.
Second cooling space advantageously connects via the second coolant lines and main cooling circuit and/or supplement heat rejecter circuit It connects, the second coolant lines are preferably comprised vehicle heating element.
It may also dictate that, at least one third cooling space in cylinder block is by means of at least one Transfer pipe and gas The first cooling space connection in cylinder cap.Preferably, third cooling space connects via third coolant lines and main cooling circuit It connects, the connection with main cooling circuit is located at coolant chiller upstream.It could dictate that in variant of the invention, in third cooling agent There is single-acting thermostatic valve in pipeline.
It could dictate that in another modification of the present invention, third cooling space is returned via the 4th coolant lines and supplement heat rejecter Road and/or the connection of the first coolant lines.Single-acting thermostatic valve can be located in the 4th coolant lines.As alternative Formula, moreover it is possible to which the second double acting thermostatic valve is located in the first coolant lines, the 4th coolant lines and supplement heat rejecter circuit Crossover sites at.
Described modification allows simple cooling management, does not have by oil coolant and by the flowing of vehicle heating element There is negative effect.
Description of the drawings
The present invention is more fully described now with reference to attached drawing.
First modification of the liquid-cooling system of internal combustion engine according to the present invention is shown in Fig. 1 to Fig. 3；
Second modification of the liquid-cooling system of internal combustion engine according to the present invention is shown in Fig. 4 to Fig. 7；
The third modification of the liquid-cooling system of internal combustion engine according to the present invention is shown in Fig. 8 to Figure 11；And
4th modification of the liquid-cooling system of internal combustion engine according to the present invention is shown in Figure 12 to Figure 16.
Specific embodiment
In the various figures, the not enabled component of cooling system K is represented by dashed line.Each component of identical functions is in each modification With identical reference numeral.
Each attached drawing shows that, in each case for the liquid-cooling system K with cooling circuit 1 of vehicle, vehicle has Internal combustion engine 2 with cylinder head 3 and cylinder block 4, liquid-cooling system K include the hot critical zone for cooling down adjacent with combustion chamber At least one first cooling space 5 and for cooling down at least one second cooling for being integrated in exhaust manifold 7 in cylinder head 3 Space 6.At least one another cooling space 8 is set to cool down each cylinder 9 in cylinder block 4.
KM instructions cooling system K belongs to the part of engine side, and KF instructions belong to the part of vehicle side.
In cooling circuit 1, the flowing of cooling agent in the first and second cooling spaces 5,6 is hydraulic parallel, first Divide cooling circuit 10 for the first cooling space 5, and second part cooling circuit 11 is used for the second cooling space 6.First and Two part cooling circuits 10,11 branch out in the downstream of coolant pump 12 from the common main line 13 of liquid-cooling system K.
In second part cooling circuit 11, oil cooler 14 is located at 6 upstream of the second cooling space, and vehicle heating element 15 are located at 6 downstream of the second cooling space.Vehicle heating element 15 can be deactivated by means of unshowned in attached drawing around valve.
In the upstream of coolant pump 12, the first double acting thermostatic valve 20 is located at the master from coolant chiller 17 and cools back In the region 16 that road 18 is converged with bypassing the supplement heat rejecter circuit 19 of coolant chiller 17.
The present invention first three modification in, first and third cooling space 5,8 connect via at least one Transfer pipe 21 It connects.
Second cooling space 6 via the second coolant lines 23 with main cooling circuit 18 and/or with supplement heat rejecter circuit 19 Connection, vehicle heating element 15 are located in the second coolant lines 23.Third cooling space 8 via third coolant lines 24 with Main cooling circuit 18 connects, and the connection 25 with main cooling circuit 18 is located at 17 upstream of coolant chiller.
Shown in Fig. 1 to 3 in modification, it is provided only with a thermostatic valve, i.e. the first double acting thermostatic valve 20.In Fig. 1, show It is in an intermediate position to go out the first double acting thermostatic valve 20, in the position main cooling circuit 18 and supplement heat rejecter circuit 19 with comprising cold But the Trunk Line 13 of agent pump 12 connects.Fig. 2 shows the situations when internal combustion engine is in running temperature, and supplement heat rejecter circuit 19 is stopped With, and entire amount of coolant flows through main cooling circuit 18.
Fig. 3 shows the liquid-cooling system K under cold, and main cooling circuit 18 deactivates, and entire amount of coolant flows through auxiliary Cooling circuit 19, so as to around coolant chiller 17.
Fig. 4 to 7 shows the second modification of the present invention with various switching possibilities, wherein in addition to double acting thermostatic valve 20 Except, the single-acting thermostatic valve 26 that is additionally provided in third coolant lines 24.In addition, the first cooling space 5 is via the first cooling Agent pipeline 22 is connect with supplement heat rejecter circuit 19.
In Fig. 4, the first double acting thermostatic valve 20 (being similar to Fig. 1) in an intermediate position, and single-acting thermostatic valve 26 is beaten It opens.Therefore, cooling agent can be without barrier in main cooling circuit 18 and supplement heat rejecter circuit 19 and third coolant lines 24 Flowing.With the first modification on the contrary, cooling agent can be flowed directly into via the first coolant lines 22 in supplement heat rejecter circuit 19.
Fig. 5 shows the situation when internal combustion engine 2 is in cold, and main cooling circuit 18 is closed by double acting thermostatic valve 20.It is whole A amount of coolant flows through supplement heat rejecter circuit 19, and cooling agent flows directly into supplement heat rejecter circuit via the first coolant lines 22 19。
In figure 6, internal combustion engine 2 is in the range of the hypomere of running temperature, and wherein supplement heat rejecter circuit 19 is by the first double acting Thermostatic valve 20 is closed, and main cooling circuit 18 is opened.Due to the closure of single-acting thermostatic valve 26, the cooling of deactivated cylinder body 4.It is cold But agent flows through the first cooling space 5 into the first coolant lines 22, and exists via the free portion 19a in supplement heat rejecter circuit 19 17 upstream of coolant chiller enters main cooling circuit 18.With this concurrently, cooling agent flows through second part cooling circuit 11, wears Cross oil cooler 14, the second cooling space 6 and vehicle heating element 15, and by with from first part's cooling circuit 10 Coolant flow reaches coolant chiller 17 after combining.
Fig. 7 and Fig. 6 are now opened the difference lies in single-acting thermostatic valve 26 so that the cooling of cylinder block 4 basis as required Need enabling when being moderate to hotter temperature range of operation in internal combustion engine 2.Cooling agent via Transfer pipe 21 from cylinder head 3 into Enter third coolant jacket 8, and cylinder block 4 is left via third coolant lines 24 along the direction of main cooling circuit 18, it is cold to dissipate But 17 systemic heat of agent cooler.
Fig. 8 to 11 shows the third modification with various switching possibilities, and wherein third coolant jacket 8 is via the 4th cooling agent Pipeline 27 is connect with supplement heat rejecter circuit 19, and is connect via the first coolant lines 22 with the first cooling space 5.In addition to first Except double acting thermostatic valve 20, single-acting thermostatic valve 28 is additionally provided in third coolant lines 24.In the modification, first It is not provided with Transfer pipe 21 between third cooling space 5,8, the effects of these Transfer pipes is by first and the 4th coolant hose Line 22,27 is realized.
In fig. 8, the first double acting thermostatic valve 20 is in intermediate position (be similar to Fig. 1 and 4), and single-acting thermostatic valve 28 open.Therefore cooling agent can be without barrier in main cooling circuit 18 and supplement heat rejecter circuit 19 and in the third and fourth cooling It is flowed in agent pipeline 24,27.Unlike in the first modification, cooling agent can flow directly into supplement heat rejecter via the first coolant lines 22 Circuit 19, and via the 4th coolant lines 27 third cooling space 8 can be flowed into from supplement heat rejecter circuit 19.
Fig. 9 shows situation when internal combustion engine 2 is in cold：Main cooling circuit 18 is closed by double acting thermostatic valve 20, and whole A amount of coolant is conducted through supplement heat rejecter circuit 19, wherein, which again can be via the first coolant lines 22 directly Flow into supplement heat rejecter circuit 19.Single-acting thermostatic valve 28 is closed, and inhibits to flow into the first cooling space 8.
In fig. 10, it is illustrated that internal combustion engine (be similar to Fig. 6) in the range of the hypomere of running temperature, wherein supplement heat rejecter circuit 19 are closed by the first double acting thermostatic valve 20, and main cooling circuit 18 is opened.Due to the closure of single-acting thermostatic valve 28, deactivated pair The cooling of cylinder block 4.Therefore cooling agent flows through the first cooling space 5 and enters the first coolant lines 22, and via supplement heat rejecter The free portion 19a in circuit 19 enters main cooling circuit 18 in the upstream of coolant chiller 17.With this concurrently, coolant flow Cross second part cooling circuit 11, across oil cooler 14, the second cooling space 6 and vehicle heating element 15, and will with Coolant flow from first part's cooling circuit 10 reaches coolant chiller 17 after combining.
In fig. 11, single-acting thermostatic valve 28 is opened now, and the cooling of cylinder block 4 therefore being moderate in internal combustion engine 2 It is enabled during hotter temperature range of operation.Cooling agent via first and the 4th coolant lines 22,27 it is cold from the first of cylinder head 3 But space 5 flows into the third cooling space 8 of cylinder block 4, and in 17 upstream of coolant chiller, the direction along main cooling circuit 18 Cylinder block 4 is left via third coolant lines 24.
Figure 12 to 16 shows the 4th modification of the liquid-cooling system K with various switching possibilities.With third modification class Seemingly, third cooling space 8 is connect via the 4th coolant lines 27 with supplement heat rejecter circuit 19, and via the first coolant lines 22 connect with the first cooling space 5.Instead of single-acting thermostatic valve 28, now also other than the first double acting thermostatic valve 20 Another double acting thermostatic valve is equipped at the crossover sites 30 that one and the 4th coolant lines 22,27 meet with supplement heat rejecter circuit 19 29.In this case, other Transfer pipes 21, the work of Transfer pipe 21 are not provided between first and third cooling space 5,8 With by first and the 4th coolant lines 22,27 realize.
In fig. 12, double acting thermostatic valve 20,29 is in an intermediate position.Therefore, cooling agent can be without barrier in main cooling Circuit 18 and supplement heat rejecter circuit 19 are simultaneously flowed in the third and fourth coolant lines 24,27.Cooling agent can be via first Coolant lines 22 flow directly into supplement heat rejecter circuit 19 or the 4th coolant lines 27 of inflow and via the 4th coolant lines 27 flow into third cooling space 8 from supplement heat rejecter circuit 19.
Figure 13 shows situation when internal combustion engine 2 is in cold.Main cooling circuit 18 is closed by the first double acting thermostatic valve 20- Entire amount of coolant passes through supplement heat rejecter circuit 19.In addition, first and the 4th coolant lines 22,27 by the second double acting constant temperature Valve 29 is closed, and therefore no cooling agent flows through the first cooling space 5 and third cooling space 8.Cooling agent is only passing through cooling In agent pipeline 11, oil cooler 14, the second cooling space 6, vehicle heating element 15 and the minor loop in supplement heat rejecter circuit 19 Cycle.
When the running temperature raising of internal combustion engine 2, the first coolant lines 22 are opened by the second double acting thermostatic valve 29, As shown in figure 14.This will enable cooling agent flow through the first cooling space 5 in cylinder head 3, and cooling agent is via the first cooling agent Pipeline 22 leaves the first cooling space 5, and flows back to coolant pump 12 via supplement heat rejecter circuit 19.
When the temperature of internal combustion engine 2 further increases, the supplement heat rejecter circuit 19 for leading to coolant pump 12 passes through such as Figure 15 institutes The second double acting thermostatic valve 29 between the crossover sites 30 and confluence area 16 shown is closed.By the first coolant lines 22 from The cooling agent for opening the first cooling space 5 now flows through the free portion 19a in supplement heat rejecter circuit 19 in 17 upstream of coolant chiller Into main cooling circuit 18.
Figure 16 shows the liquid-cooling system K being moderate under higher running temperature in internal combustion engine.First double acting Thermostatic valve 20 is now closed supplement heat rejecter circuit 19 and opens main cooling circuit 18.Second double acting thermostatic valve 29 is in wherein meta position Put, in the centre position, first and the 4th coolant lines 22,27 open, so as to allow cooling agent from the first coolant lines 22 flow into the free portion 19a in supplement heat rejecter circuit 19, and flow into the 4th coolant lines 27.Therefore, first and third cooling Space 5,8 will receive coolant flow.Cooling agent via first and the 4th coolant lines 22,27 from the first of cylinder head 3 the cooling Space 5 flows into the third cooling space 8 of cylinder block 4, and via third coolant lines 24 towards 17 upstream of coolant chiller Main cooling circuit 18 be channeled out cylinder block 4.
Position regardless of thermostatic valve 20,26,28,29, oil cooler 14, for the second cold of cooled exhaust manifold 7 But space 6 and vehicle heating element 15 will always receive coolant flow.

Claims (17)

1. a kind of liquid-cooling system (K) of internal combustion engine (2) for vehicle, the internal combustion engine has cylinder head (3), the gas Cylinder cap (3) includes integrated exhaust manifolds (7), wherein the cylinder head (3) has to cool down and combustion chamber adjacent area At least one first cooling space (5) and at least one second cooling space (6) for cooling down the exhaust manifold (7), institute It states the first cooling space (5) and second cooling space (6) provides cooled flow path be separated from each other, in parallel, it is described Liquid-cooling system (K) has cooling circuit (1), which is characterized in that at least one oil cooler (14) and/or at least one vehicle Heating element (15) is serially arranged in second cooling space (6) in the cooling circuit (1).
2. liquid-cooling system (K) according to claim 1, which is characterized in that lead to first cooling space (5) First part's cooling circuit (10) and lead to the second part cooling circuit (11) of second cooling space (6) from common master Pipeline (13) branches out.
3. liquid-cooling system (K) according to claim 2, which is characterized in that the oil cooler (14) is described It is located at the upstream of second cooling space (6) in two part cooling circuits (11).
4. the liquid-cooling system (K) according to Claims 2 or 3, which is characterized in that the vehicle heating element (15) exists It is located at the downstream of second cooling space (6) in the second part cooling circuit (11).
5. liquid-cooling system (K) according to claim 2, which is characterized in that coolant pump (12) is positioned at described common Trunk Line (13) on, in first part's cooling circuit (10) and the second part cooling circuit branched out from it (11) before.
6. liquid-cooling system (K) according to claim 5, which is characterized in that first cooling space (5) and auxiliary Cooling circuit (19) connects, and second cooling space (6) connects with main cooling circuit (18) and/or supplement heat rejecter circuit (19) It connects.
7. liquid-cooling system (K) according to claim 6, which is characterized in that in the upstream of the coolant pump (12), It is described with bypassing that first double acting thermostatic valve (20) is arranged on the main cooling circuit (18) from coolant chiller (17) In the region (16) that the supplement heat rejecter circuit (19) of coolant chiller (17) is converged.
8. the liquid-cooling system (K) described according to claim 6 or 7, which is characterized in that first cooling space (5) is logical The first coolant lines (22) are crossed to connect with the supplement heat rejecter circuit (19).
9. liquid-cooling system (K) according to claim 7, which is characterized in that second cooling space (6) passes through Two coolant lines (23) are connect with the main cooling circuit (18) and/or with the supplement heat rejecter circuit (19).
10. liquid-cooling system (K) according to claim 9, which is characterized in that at least one in cylinder block (4) Three cooling spaces (8) are by means of first cooling space (5) at least one Transfer pipe (21) and the cylinder head (3) Connection.
11. liquid-cooling system (K) according to claim 10, which is characterized in that the third cooling space (8) by It is connect in third coolant lines (24) with the main cooling circuit (18), connection (25) cloth with the main cooling circuit (18) It puts in the upstream of the coolant chiller (17).
12. liquid-cooling system (K) according to claim 11, which is characterized in that single-acting thermostatic valve (26) is arranged on In the third coolant lines (24).
13. liquid-cooling system (K) according to claim 10, which is characterized in that the third cooling space (8) by It is connect in the 4th coolant lines (27) with the supplement heat rejecter circuit (19) and/or first coolant lines (22).
14. liquid-cooling system (K) according to claim 13, which is characterized in that single-acting thermostatic valve (28) is arranged on In 4th coolant lines (27).
15. liquid-cooling system (K) according to claim 13, which is characterized in that in first coolant lines (22), it is provided with second pair at the 4th coolant lines (27) and the crossover sites (30) of the supplement heat rejecter circuit (19) Act on thermostatic valve (29).
16. liquid-cooling system (K) according to claim 1, which is characterized in that lead to first cooling space (5) First part's cooling circuit (10) and lead to the second part cooling circuit (11) of second cooling space (6) in cooling agent The downstream of pump (12) is branched out from common Trunk Line (13).
17. liquid-cooling system (K) according to claim 9, which is characterized in that vehicle heating element (15) setting In second coolant lines (23).
CN201380050061.2A 2012-07-26 2013-07-17 For the liquid-cooling system of vehicle internal combustion engine Active CN104685180B (en)

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ATA50298/2012A AT513175B1 (en) 2012-07-26 2012-07-26 Liquid cooling system for an internal combustion engine of a vehicle
PCT/EP2013/065080 WO2014016177A1 (en) 2012-07-26 2013-07-17 Liquid cooling system for an internal combustion engine of a vehicle

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DE112013003684A5 (en) 2015-04-30
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CN104685180A (en) 2015-06-03
AT513175B1 (en) 2014-10-15

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