CN204610061U - The cylinder head of motor - Google Patents
The cylinder head of motor Download PDFInfo
- Publication number
- CN204610061U CN204610061U CN201520278967.6U CN201520278967U CN204610061U CN 204610061 U CN204610061 U CN 204610061U CN 201520278967 U CN201520278967 U CN 201520278967U CN 204610061 U CN204610061 U CN 204610061U
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- CN
- China
- Prior art keywords
- cylinder head
- cooling water
- exhaust gas
- cooler
- recycled exhaust
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000498 cooling water Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a kind of cylinder head of motor.The cylinder head of this motor possesses the water jacket being arranged on described cylinder head inside and the cooler for recycled exhaust gas be arranged in described cylinder head outer wall, be provided with cooling water in described cylinder head and take out passage, this cooling water takes out the position of position corresponding to the base plate supported the core of the water jacket forming described cylinder head of passage, this cooling water takes out the cooling water that channel reception flows through from the water jacket of the cylinder block of motor, and is imported in cooler for recycled exhaust gas by this cooling water.Adopt said structure, the cooling performance of cooler for recycled exhaust gas can be improved, the increase of manufacture cost can be suppressed again.
Description
Technical field
The utility model relates to the cylinder head of motor.
Background technique
In prior art, be provided with EGR (Exhaust Gas Recirculation, EGR) device motor in, be usually provided with in the process for being restored to motor in the exhaust of being discharged by motor being vented the cooler for recycled exhaust gas that cools.Between the coolant outlet of the cooling water inlet of this cooler for recycled exhaust gas and the water jacket of cylinder head, be usually interconnected by connecting tube.In this structure, because above-mentioned connecting tube separately established by needs, so equipment cost can be caused to increase.
To this, in patent documentation 1, be directly communicated with the cooling water inlet of cooler for recycled exhaust gas for the discharge route that the cooling water in the water jacket of cylinder head is discharged.But, when adopting this structure, because the cooling water starting built-in temperature higher is used to the cooling of cooler for recycled exhaust gas, so, the cooling performance of cooler for recycled exhaust gas can be caused to reduce.On the other hand, when not arranging above-mentioned connecting tube, if carry out perforate processing to above-mentioned discharge route, then need after cylinder head casting, carry out such perforate processing, thus cause manufacture cost to increase.
In addition, if utilize when cylinder head is cast core to form the discharge route of cooling water, then not only need the core of the water jacket for the formation of cylinder head, but also need the core etc. of the discharge route forming cooling water, its result, can cause manufacture cost to increase further.
[patent documentation 1]: Japanese Unexamined Patent Publication 2007-292012 publication
Model utility content
For above-mentioned technical problem, the purpose of this utility model is, provides a kind of cooling performance that can improve cooler for recycled exhaust gas, the cylinder head of the motor that manufacture cost can be suppressed again to increase.
As the technological scheme solved the problems of the technologies described above, the utility model provides a kind of cylinder head of motor.The cylinder head of this motor possesses the water jacket being arranged on described cylinder head inside and the cooler for recycled exhaust gas be arranged in described cylinder head outer wall, it is characterized in that: be provided with cooling water in described cylinder head and take out passage, this cooling water takes out the position of position corresponding to the base plate supported the core of the water jacket forming described cylinder head of passage, described cooling water takes out the cooling water that channel reception flows through from the water jacket of the cylinder block of described motor, and is imported in described cooler for recycled exhaust gas by this cooling water.
The advantage of the cylinder head of above-mentioned motor of the present utility model is, on the one hand, due to the cooling water in the water jacket of cylinder block lower than the cooling water in the water jacket of cylinder head for temperature is imported in cooler for recycled exhaust gas, so, the cooling performance that cooler for recycled exhaust gas cools EGR gas can be improved.On the other hand, passage is taken out to form cooling water due to the base plate to the core of the water jacket forming cylinder head supports can be utilized, so, with perforation processing of the prior art or use special core mode compared with, can suppress or avoid the increase of manufacture cost.
In the cylinder head of above-mentioned motor of the present utility model, be preferably, described cooling water takes out passage and is configured to, open at one end and being communicated with the water jacket of described cylinder block; The other end opens wide in the installation position of the described cooler for recycled exhaust gas of described cylinder head outer wall, on described cooler for recycled exhaust gas, is provided with the cooling water introducing port that the described the other end that takes out passage with described cooling water is communicated with.Adopt this structure, as long as install cooler for recycled exhaust gas in cylinder head, the cooling water of cylinder head takes out passage and is just directly communicated with the cooling water introducing port of cooler for recycled exhaust gas.Thus, the operation of cooling water being taken out passage and being communicated with cooling water introducing port can be simplified, thus be conducive to the increase suppressing or avoid manufacture cost.
Accompanying drawing explanation
Fig. 1 is the worm's eye view of the cylinder head of the motor representing mode of execution of the present utility model.
Fig. 2 is the stereogram of the using state of the cylinder head represented in Fig. 1.
Fig. 3 expands the schematic diagram representing and pull down the state after cooler for recycled exhaust gas from the cylinder head Fig. 2.
Fig. 4 is the schematic diagram in the cooling water circulation path representing the motor that have employed structure of the present utility model.
Embodiment
Below, with reference to Fig. 1 ~ Fig. 4, mode of execution of the present utility model is described.
In this mode of execution, such as, be described for the In-line multi-cylinder engine loaded in the vehicles such as automobile.
As shown in Figure 2, Figure 4 shows, the cylinder block 11 and cylinder head 12 of motor 1 are respectively equipped with water jacket 11a, 12a.
As shown in Figure 4, in the front of cylinder block 11, water pump 3 is installed.This water pump 3 makes cooling water flow to the water jacket 12a of cylinder head 12 from the water jacket 11a of cylinder block 11, and makes this cooling water flow into outside pipe arrangement 2 and circulate by turning back in the water jacket 11a of cylinder block 11 afterwards from radiator 4 and heater 5.
The water jacket 11a of cylinder block 11 is configured to, and round the multiple cylinder-bore formed a line (omitting diagram), and its cooling water inlet 11b is connected with the drain opening (omit and illustrate) of water pump 3.
Water jacket 11a is upper unlimited at the upper surface (end face in the face of cylinder head 12 side) of cylinder block 11, and this open section is connected with the water jacket 12a of cylinder head 12.
On the water jacket 12a of cylinder head 12, as shown in Figure 1, the cooling water inlet 12b be made up of lower surface (end face in the face of cylinder block 11 side) the unlimited multiple openings in cylinder head 12 is provided with.
Further, motor 1 is provided with EGR device (omitting diagram).This EGR device flow back in firing chamber for a part for the exhaust making the firing chamber of motor 1 (omit diagram) and discharge, has cooler for recycled exhaust gas 6.
Cooler for recycled exhaust gas 6 is the heat exchangers cooling the EGR gas flow through in EGR gas channel 62 in its shell 61 inside with the cooling water of motor 1.
As shown in Figure 2, the shell 61 of cooler for recycled exhaust gas 6 is such as installed on the outer wall 12c of the rear end of cylinder head 12 by (not shown) such as bolts.
In shell 61, insert the EGR gas channel 62 of exhaust gas recirculation.In this EGR gas channel 62, be provided with the electromagnetic type EGR valve (not shown) for adjusting exhaust gas recirculation amount.
As shown in Figure 1, in this mode of execution, the rearward end of cylinder head 12 is provided with cooling water and takes out passage 13.This cooling water take out passage 13 for, a part for the cooling water flowing through the water jacket 11a of cylinder block 11 is imported in the shell 61 of cooler for recycled exhaust gas 6.
One end 13a that cooling water takes out passage 13 opens wide at the lower surface of cylinder head 12, and this one end 13a is communicated with the water jacket 11a of cylinder block 11.
On the other hand, at the outer wall 12c of the rear end of cylinder head 12, the other end 13b that cooling water takes out passage 13 opens wide in the installation position of cooler for recycled exhaust gas 6.
The shell 61 of cooler for recycled exhaust gas 6 is provided with cooling water introducing port 61a.This cooling water introducing port 61a is processed to, and opens wide at the attachment face (the outer wall 12c of rear end) being installed on cylinder head 12 of shell 61.
Thus, as long as install the shell 61 of cooler for recycled exhaust gas 6 in cylinder head 12, the cooling water of cylinder head 12 takes out passage 13 and is just directly communicated with the cooling water introducing port 61a of the shell 61 of cooler for recycled exhaust gas 6.
At this, import to the cooling water of the water jacket 11a front end of cylinder block 11 as shown in the dotted arrow in Fig. 1, flow through from after the suction port 12d side flow path upstream side flow path of flow of cooling water direction (also claim) of cylinder block 11 rear end is led in cylinder block 11 front end, after u turn is carried out in above-mentioned rear end, flow through relief opening 12e side flow path (also claiming the downstream side flow path in flow of cooling water direction) towards above-mentioned front end.
In addition, the part flowing through the cooling water of above-mentioned u turn part can flow in the cooling water taking-up passage 13 of cylinder head 12, and is directed in the shell 61 of cooler for recycled exhaust gas 6 from this cooling water taking-up passage 13.
Because the cooling water that flows to u turn part from air inlet side flow path is less than from the heat that cylinder block 11 absorbs the heat that cooling water absorbs from exhaust side flow path, therefore, its temperature is lower than the temperature of the cooling water flow through from exhaust side flow path.And, the temperature of the cooling water that the temperature of this cooling water flows through lower than the water jacket 12a from cylinder head 12.
So, owing to having imported the cooling water of low temperature in the shell 61 of cooler for recycled exhaust gas 6, so improve cooler for recycled exhaust gas 6 pairs of gas-cooled cooling performances of EGR.In addition, the cooling water flow through from this shell 61 is discharged to outside pipe arrangement 2 via coolant outlet pipe arrangement 63.
In this embodiment, cylinder head 12 is made by casting, further, the water jacket 12a of this cylinder head 12 is formed by core (omitting diagram), and it is base plate (omitting diagram) by supporting above-mentioned core and formation that cooling water takes out passage 13.
That is, the water jacket 12a of cylinder head 12 is processed to, identical with described core shape; Cooling water takes out passage 13 and is processed to, with above-mentioned base plate position is corresponding and shape is identical.
As described above, in present embodiment, due to the cooling water in the water jacket 11a of cylinder block 11 lower than the cooling water in the water jacket 12a of cylinder head 12 for temperature has been imported in cooler for recycled exhaust gas 6, so, the cooling performance that cooler for recycled exhaust gas 6 pairs of EGR gases cool can be improved.
And, in present embodiment, passage 13 is taken out to the cooling water forming cylinder head 12 owing to effectively utilizing the base plate of the core supporting the water jacket 12a forming cylinder head 12, so, compared with the mode carrying out processing and using special core by punching like that with above-mentioned prior art, can suppress or avoid manufacture cost to increase.
Further, in present embodiment, the operation be communicated with the cooling water introducing port 61a of cooler for recycled exhaust gas 6 owing to the cooling water of cylinder head 12 to be taken out passage 13 is carried out with the operation of the shell 61 installing cooler for recycled exhaust gas 6 in cylinder head 12 simultaneously, so, the operation etc. of cooling water being taken out passage 13 and being communicated with cooling water introducing port 61a can be simplified, thus, be conducive to suppressing or avoiding manufacture cost to increase.
In addition, in the above-described embodiment, list In-line multi-cylinder engine as application of the present utility model, but the cylinder head of motor of the present utility model is not limited to In-line multi-cylinder engine, is also applicable to various types of motor.
Claims (2)
1. a cylinder head for motor, possesses the water jacket being arranged on described cylinder head inside and the cooler for recycled exhaust gas be arranged in described cylinder head outer wall, it is characterized in that:
Be provided with cooling water in described cylinder head and take out passage, this cooling water takes out the position of position corresponding to the base plate supported the core of the water jacket forming described cylinder head of passage,
Described cooling water takes out the cooling water that channel reception flows through from the water jacket of the cylinder block of described motor, and is imported in described cooler for recycled exhaust gas by this cooling water.
2. the cylinder head of motor as claimed in claim 1, is characterized in that:
Described cooling water takes out passage and is configured to, open at one end and being communicated with the water jacket of described cylinder block; The other end opens wide in the installation position of the described cooler for recycled exhaust gas of described cylinder head outer wall,
On described cooler for recycled exhaust gas, be provided with the cooling water introducing port that the described the other end that takes out passage with described cooling water is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278967.6U CN204610061U (en) | 2015-04-30 | 2015-04-30 | The cylinder head of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278967.6U CN204610061U (en) | 2015-04-30 | 2015-04-30 | The cylinder head of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610061U true CN204610061U (en) | 2015-09-02 |
Family
ID=53962634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520278967.6U Active CN204610061U (en) | 2015-04-30 | 2015-04-30 | The cylinder head of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610061U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107420A (en) * | 2018-02-01 | 2019-08-09 | 丰田自动车株式会社 | Internal combustion engine |
| CN110107421A (en) * | 2018-02-01 | 2019-08-09 | 丰田自动车株式会社 | On-vehicle internal combustion engine |
| CN111971467A (en) * | 2020-02-17 | 2020-11-20 | 株式会社小松制作所 | Cylinder head and engine |
-
2015
- 2015-04-30 CN CN201520278967.6U patent/CN204610061U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107420A (en) * | 2018-02-01 | 2019-08-09 | 丰田自动车株式会社 | Internal combustion engine |
| CN110107421A (en) * | 2018-02-01 | 2019-08-09 | 丰田自动车株式会社 | On-vehicle internal combustion engine |
| CN111971467A (en) * | 2020-02-17 | 2020-11-20 | 株式会社小松制作所 | Cylinder head and engine |
| US11242819B2 (en) | 2020-02-17 | 2022-02-08 | Komatsu Ltd. | Cylinder head and engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |