CN103511116B - Engine and cylinder head thereof - Google Patents
Engine and cylinder head thereof Download PDFInfo
- Publication number
- CN103511116B CN103511116B CN201310470932.8A CN201310470932A CN103511116B CN 103511116 B CN103511116 B CN 103511116B CN 201310470932 A CN201310470932 A CN 201310470932A CN 103511116 B CN103511116 B CN 103511116B
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- cylinder
- base plate
- upper water
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses an engine and a cylinder head of the engine. The cylinder head is provided with air passages which include an air inlet passage and an exhaust passage, the cylinder head further comprises a base plate, the air passages are connected with the base plate in a fillet transition mode, and reinforcing ribs are arranged at the position of fillet transition connection. Due to the fact that the reinforcing ribs are arranged, the phenomenon that cracks are produced in the process of casting can be avoided, the strength of the position of connection between the air passages and the base plate is improved, and the phenomenon that the cylinder head loses efficacy is avoided.
Description
Technical field
The present invention relates to technical field of engines, more particularly to a kind of engine and its cylinder head.
Background technology
The cylinder head of engine is used for closed cylinder, to constitute the combustion chamber of closing.
Fig. 1 is refer to, Fig. 1 is a kind of profile of typical cylinder head.
Cylinder head is provided with air flue, including air intake duct 11 and exhaust duct 12, and air flue is connected with base plate using round-corner transition.
As shown in figure 1, each air intake duct 11, exhaust duct 12 are respectively provided with round-corner transition structure 13 with back plate connections.Round-corner transition structure 13
So that the connection of air flue and base plate is more smoothed out, connect also more reliable.
However, above-mentioned round-corner transition structure 13 casts wayward typically by casting formation, round-corner transition is easily caused
There is crackle at structure 13.And cylinder head in working order under, can be subject to cylindrical implosion send out pressure produced by high cycle fatigue should
Power is acted on, and the low circumferential stress effect that thermic load is produced, then cracks intensity is not enough, and cylinder head can be caused to fail, and affects to send out
The normal work of motivation.
Additionally, the base plate of cylinder head is provided with water hole, the upper water hole of cooling water Jing base plates is flowed to inside cylinder head, plays cold
But effect.At present, upper water hole is blowhole structure, and casting tolerance is larger, then go up water hole easily misplaces with head gasket water sealing apronses,
The two is caused effectively to coordinate, the performance in upper water hole also just cannot be played normally.Especially, water sealing apronses physical dimension is more
When compact, head gasket water sealing apronses can fail.
In view of this, the intensity of air flue and back plate connections how is improved, it is to avoid cylinder head fails, and is people in the art
Member's technical problem urgently to be resolved hurrily.
The content of the invention
To solve above-mentioned technical problem, the purpose of the present invention is a kind of engine of offer and its cylinder head.The cylinder head energy
Enough improve air flue and back plate connections intensity, it is to avoid casting is cracked and failed.
The cylinder head that the present invention is provided, is provided with air flue, and the air flue includes air intake duct and exhaust duct, and the cylinder head is also wrapped
Base plate is included, the air flue is connected with the base plate round-corner transition, and round-corner transition link position is provided with reinforcement.
The setting of reinforcement can avoid casting process from cracking, and so as to improve the intensity of air flue and back plate connections, keep away
Exempt from cylinder head failure.
Preferably, there is the base plate Cooling Water to flow into the upper water hole inside the cylinder head, the upper water hole drilling
Formed.
Preferably, the upper water hole is divided into the air inlet side and exhaust side of the base plate, and the exhaust side it is described on
Described upper water hole number of the water hole number more than the air inlet side.
Preferably, the cylinder is covered with delivery port, and the delivery port is located at the upside of the exhaust duct.
Preferably, the delivery port is at the top board of the cylinder head.
Preferably, the air inlet side of the cylinder head is provided with lubricating oil return hole.
Preferably, the cylinder is covered with oil sprayer bushing installing hole, and the oil sprayer bushing installing hole includes installing spray
The bottom outlet of oily device liner head；The side wall of the bottom outlet is provided with annular ditch groove.
Preferably, along axial arranged multiple annular ditch grooves of the bottom outlet.
The present invention also provides a kind of engine, including the cylinder head of cylinder and the capping cylinder, and the cylinder head is upper
State the cylinder head described in any one.
Because above-mentioned cylinder head has above-mentioned technique effect, the engine with the cylinder head is also imitated with identical technology
Really.
Description of the drawings
Fig. 1 is a kind of profile of typical cylinder head；
Fig. 2 is a kind of structural representation of specific embodiment of cylinder head provided by the present invention；
Fig. 3 is the schematic internal view of Fig. 2；
Fig. 4 is the B-B direction sectional view of Fig. 3；
Fig. 5 is the flow path schematic diagram of cylinder head internal cooling water in Fig. 4；
Fig. 6 is the schematic diagram of oil sprayer bushing installing hole in Fig. 4.
In Fig. 1：
11 air intake ducts, 12 exhaust ducts, 13 round-corner transition structures；
In Fig. 2-6：
21 exhaust valve seats, 21a exhaust ducts, 22 suction valve cones, 22a air intake ducts, water hole, 24 oil sprayer bushings are installed on 23
Hole, 241 bottom outlets, 241a annular recess, 26 reinforcements, 27 lubricating oil return holes, 281 times water cavities, 282 upper water cavities, 29 delivery ports,
A ridge areas
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and concrete real
The present invention is described in further detail to apply example.
Fig. 2-4 are refer to, Fig. 2 is a kind of structural representation of specific embodiment of cylinder head provided by the present invention；Fig. 3 is figure
2 schematic internal view；Fig. 4 is the B-B direction sectional view of Fig. 3.
Cylinder head in the embodiment, is provided with air flue, and cylinder head is entity, and air flue is directly opened in the inside of cylinder head,
As shown in Figure 3,4, air flue specifically includes air intake duct 22a and exhaust duct 21a.The base plate of cylinder head can be arranged and connected with air intake duct 22a
The exhaust valve seat 21 that logical suction valve cone 22 is connected with exhaust duct 21a, for connecting exterior line, to realize air inlet and exhaust,
Two suction valve cones 22 and two exhaust valve seats 21 are specifically set in figure, certainly, according to the actual requirements, suction valve cone 22 and exhaust
The number and location of gate seat 21 can make accommodation.
Cylinder head includes base plate, when the air flue inside cylinder head is extended at base plate, takes round-corner transition to be connected with base plate.
In the present embodiment, reinforcement 26 is provided with the round-corner transition link position of base plate and air flue, as shown in Figure 3.Cylinder is covered with peace
The link position of the oil sprayer bushing installing hole 24 of dress oil sprayer bushing, air flue and base plate adds near mounting hole of oil sprayer 24
Strong muscle 26 is located at the air flue around oil sprayer bushing, as shown in Figure 4.
The setting of reinforcement 26 can avoid casting process from cracking, so as to improve the intensity of air flue and back plate connections,
Cylinder head is avoided to fail.
Further, base plate has for the upper water hole 23 inside cooling water inflow cylinder head, and upper water hole 23 is by boring
Hole is formed, as shown in Figure 2.Compared to blowhole structure, the upper water hole 23 for being formed that drills can ensure its machining accuracy, so that it is guaranteed that gas
The relative position in cylinder pad water sealing apronses and upper water hole 23, it is to avoid water sealing apronses misplace with upper water hole 23 and fail, while also can
Realize the precise control of streamflow.
Further optimization can also be made to the arrangement in upper water hole 23.
Fig. 5 is refer to, Fig. 5 is the flow path schematic diagram of cylinder head internal cooling water in Fig. 4.
Can understand with reference to Fig. 2, the number in upper water hole 23 is multiple, and is divided into the air inlet side and exhaust side of base plate, and is arranged
Upper water hole 23 number of the number of upper water hole 23 of gas side more than air inlet side.In Fig. 2, for arranging 5 upper water holes 23, two upper water holes
23 are located at air inlet side, and three upper water holes 23 are located at exhaust side.
The circulating path of cylinder head cooling water is as follows：
Upper water cavity 282, lower water cavity 281 and delivery port 29 are provided with inside cylinder head, cooling water is from cylinder head base plate
Upper water hole 23 enter lower water cavity 281, subsequently into ridge area A (i.e. outer convex domain between air intake duct 22a and exhaust duct 21a, such as
Shown in Fig. 3), then the gap of Jing oil sprayer bushing surroundings is into upper water cavity 282, finally by the water outlet connected with upper water cavity 282
Mouth 29 flows out, and delivery port 29 can be located at top board (relative with the base plate) place of cylinder head.
The number of upper water hole 23 of exhaust side is relatively more, it is ensured that the cooling effect of exhaust side, i.e., to exhaust duct 21a and
The ridge area A of exhaust duct 21a sides is preferably cooled down, and prevents exhaust side temperature too high, it is ensured that cylinder head intensity.
In addition, the delivery port 29 of cylinder head can be located at the upside of exhaust duct 21a, as shown in Figure 5.Thus, can be at utmost
Ground reduces the temperature of exhaust side using cooling water, further ensures that the intensity of cylinder head.For ease of arranging and making full use of cooling
Water, as described above, delivery port 29 is at the top board of cylinder head.
Fig. 6 is refer to, Fig. 6 is the schematic diagram of oil sprayer bushing installing hole in Fig. 4.
Cylinder is covered with oil sprayer bushing installing hole 24, and to install oil sprayer bushing, oil sprayer bushing installing hole 24 is general
Positioned at the middle part of cylinder head.With Fig. 6 as visual angle, the head of oil sprayer bushing loads down the oil sprayer bushing installing hole 24, its
Head mounted position is the bottom outlet 241 of oil sprayer bushing installing hole 24.In the present embodiment, can arrange in the side wall of bottom outlet 241
Annular ditch groove 241a.Oil sprayer bushing can be pressed into and be riveted in fuel injector bottom outlet 241, after arranging annular ditch groove 241a, press-fit riveting
The effect for connecing more preferably, can effectively prevent oil sprayer bushing from loosening, departing from.
On this basis, the number of annular ditch groove 241a can be for multiple, and the axially disposed side wall in bottom outlet 241, such as
This, can further improve the effect that presses.
For the various embodiments described above, lubricating oil return hole 27 can be set in the air inlet side of cylinder head, as shown in Figure 3.Typically,
Cylinder head is connected with rocking arm, and rocking arm has the push-rod hole inside connection cylinder head, then in cylinder head flowing lubricating oil can Jing shake
The push-rod hole of arm flows out.However, when the position of push-rod hole is higher, it is possible to create the problem that lubricating oil cannot smoothly flow back, than
Such as, for the V-type engine (paired engine) under working condition, its cylinder head is in 45 degree inclination angles, and push-rod hole is positioned at high-end,
The lubricating oil for then flowing out from rocking arm is not easy to backflow.
After the air inlet side of cylinder head processes the lubricating oil return hole 27 connected with internal lubrication oil duct, for inclining work
The cylinder head (than V-type engine described above) of work, air inlet side is in lower position, then lubricating oil can this lubricating oil return hole of Jing
27 smoothly flow out.Corresponding oil leab can be processed on the body of engine, is connected with lubricating oil return hole 27, then cylinder
Lubricating oil in lid finally can Jing engine bodies be back to oil sump.
Except above-mentioned cylinder head, the present invention also provides a kind of engine, including the cylinder head of cylinder and capping cylinder, cylinder
Lid capping cylinder forms combustion chamber, and the cylinder head is the cylinder head described in any of the above-described embodiment.Due to above-mentioned cylinder head tool
There is above-mentioned technique effect, the engine with the cylinder head also has identical technique effect.
A kind of engine provided by the present invention and its cylinder head are described in detail above.It is used herein
Specific case is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands this
The method and its core concept of invention.It should be pointed out that for those skilled in the art, without departing from this
On the premise of bright principle, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into power of the present invention
In the protection domain that profit is required.
Claims (8)
1. a kind of cylinder head, is provided with air flue, and the air flue includes air intake duct (22a) and exhaust duct (21a), and the cylinder head is also wrapped
Include base plate, it is characterised in that the air flue is connected with the base plate round-corner transition, and round-corner transition link position is provided with reinforcement
(26), and the reinforcement (26) positioned at the oil sprayer bushing installing hole (24) of cylinder head inwall；
The cylinder is covered with oil sprayer bushing installing hole (24), and the oil sprayer bushing installing hole (24) includes installation fuel injector
The bottom outlet (241) of liner head；The side wall of the bottom outlet (241) is provided with annular ditch groove (241a).
2. cylinder head as claimed in claim 1, it is characterised in that there is the base plate Cooling Water to flow in the cylinder head
The upper water hole (23) in portion, upper water hole (23) drilling is formed.
3. cylinder head as claimed in claim 2, it is characterised in that the upper water hole (23) is divided into the air inlet side of the base plate
And exhaust side, and described upper water hole (23) number of the exhaust side is more than described upper water hole (23) number of the air inlet side.
4. cylinder head as claimed in claim 1, it is characterised in that the cylinder is covered with delivery port (29), the delivery port
(29) positioned at the upside of the exhaust duct (21a).
5. cylinder head as claimed in claim 4, it is characterised in that top board of the delivery port (29) located at the cylinder head
Place.
6. the cylinder head as described in any one of claim 1-5, it is characterised in that the air inlet side of the cylinder head is provided with lubricating oil
Spill port (27).
7. the cylinder head as described in any one of claim 1-5, it is characterised in that along the axial arranged many of the bottom outlet (241)
The individual annular ditch groove (241a).
8. the cylinder head of a kind of engine, including cylinder and the capping cylinder, it is characterised in that the cylinder head will for right
Seek the cylinder head described in any one of 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470932.8A CN103511116B (en) | 2013-10-10 | 2013-10-10 | Engine and cylinder head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470932.8A CN103511116B (en) | 2013-10-10 | 2013-10-10 | Engine and cylinder head thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511116A CN103511116A (en) | 2014-01-15 |
| CN103511116B true CN103511116B (en) | 2017-04-26 |
Family
ID=49894424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310470932.8A Active CN103511116B (en) | 2013-10-10 | 2013-10-10 | Engine and cylinder head thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511116B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825396A (en) * | 2018-06-27 | 2018-11-16 | 潍柴重机股份有限公司 | A kind of engine cylinder cap with independent floor structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353521A (en) * | 1964-03-03 | 1967-11-21 | Blackstone & Co Ltd | Internal combustion piston engines |
| US4774912A (en) * | 1985-04-15 | 1988-10-04 | Kawasaki Jukogyo Kabushiki Kaisha | Composite cylinder head of internal-combustion engine |
| US5743218A (en) * | 1996-01-09 | 1998-04-28 | Mercedes-Benz Ag | Liquid cooled cylinder head for an internal combustion engine |
| WO2003100237A1 (en) * | 2002-05-23 | 2003-12-04 | Daimlerchrysler Ag | Cylinder head of an internal combustion engine |
| CN202228200U (en) * | 2011-10-17 | 2012-05-23 | 沈阳博龙汽车部件制造有限公司 | Improved cylinder cover for diesel engine |
| CN202673472U (en) * | 2012-04-25 | 2013-01-16 | 长城汽车股份有限公司 | Cylinder cover capable of avoiding endurance cracks |
| CN203570442U (en) * | 2013-10-10 | 2014-04-30 | 潍柴动力股份有限公司 | Engine and air cylinder cover thereof |
-
2013
- 2013-10-10 CN CN201310470932.8A patent/CN103511116B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353521A (en) * | 1964-03-03 | 1967-11-21 | Blackstone & Co Ltd | Internal combustion piston engines |
| US4774912A (en) * | 1985-04-15 | 1988-10-04 | Kawasaki Jukogyo Kabushiki Kaisha | Composite cylinder head of internal-combustion engine |
| US5743218A (en) * | 1996-01-09 | 1998-04-28 | Mercedes-Benz Ag | Liquid cooled cylinder head for an internal combustion engine |
| WO2003100237A1 (en) * | 2002-05-23 | 2003-12-04 | Daimlerchrysler Ag | Cylinder head of an internal combustion engine |
| CN202228200U (en) * | 2011-10-17 | 2012-05-23 | 沈阳博龙汽车部件制造有限公司 | Improved cylinder cover for diesel engine |
| CN202673472U (en) * | 2012-04-25 | 2013-01-16 | 长城汽车股份有限公司 | Cylinder cover capable of avoiding endurance cracks |
| CN203570442U (en) * | 2013-10-10 | 2014-04-30 | 潍柴动力股份有限公司 | Engine and air cylinder cover thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103511116A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201092896Y (en) | Multi-cylinder diesel engine intensive cooling double-layer water channel integral cylinder cap | |
| JP4923036B2 (en) | Exhaust gas recirculation device for internal combustion engine | |
| US10662857B2 (en) | Liquid-cooled internal combustion engine | |
| US8146544B2 (en) | Engine cylinder head cooling features and method of forming | |
| DE102011078929A1 (en) | Engine with cylinder head cooling | |
| RU124738U1 (en) | COOLING FUEL INJECTORS | |
| WO2011091572A1 (en) | Water channel structrue for cylinder head | |
| US20110120299A1 (en) | Cast piston with pin bore lubrication and method of manufacturing same | |
| CN101084369B (en) | Cylinder head with reinforcement | |
| CN207178048U (en) | A kind of cylinder cover for diesel engine | |
| CN103511116B (en) | Engine and cylinder head thereof | |
| CN109854403A (en) | Cylinder head and engine with it | |
| JP2017008778A (en) | Internal combustion engine | |
| CN205297757U (en) | Engine and cylinder head thereof | |
| CN203570442U (en) | Engine and air cylinder cover thereof | |
| CN103982317A (en) | High-strength diesel engine cylinder cover | |
| CN203847265U (en) | High-strength diesel engine cylinder cover | |
| CN110242435A (en) | A kind of cylinder cover for diesel engine | |
| CN210509412U (en) | Cylinder cover of diesel engine | |
| CN201620963U (en) | Water-channel structure of cylinder cover | |
| CN105275657B (en) | A kind of diesel engine integrated cylinder cover of parallel valve arrangement | |
| CN202055891U (en) | Respirator circulating system structure for separating oil from gas of universal gasoline engine | |
| CN201953494U (en) | Engine cylinder head | |
| CN203223304U (en) | Air cylinder cover | |
| CN107701323B (en) | Cylinder head structure of motorcycle water-cooled engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhijian Inventor after: Zhang Weigang Inventor after: Cui Jingpeng Inventor after: Chen Li Inventor before: Zhang Weigang Inventor before: Cui Jingpeng Inventor before: Chen Li |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG WEIGANG CUI JINGPENG CHEN LI TO: WANG ZHIJIAN ZHANG WEIGANG CUI JINGPENG CHEN LI |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |