CN207673449U - A kind of engine cylinder head - Google Patents
A kind of engine cylinder head Download PDFInfo
- Publication number
- CN207673449U CN207673449U CN201721547128.5U CN201721547128U CN207673449U CN 207673449 U CN207673449 U CN 207673449U CN 201721547128 U CN201721547128 U CN 201721547128U CN 207673449 U CN207673449 U CN 207673449U
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- CN
- China
- Prior art keywords
- cooling water
- cylinder head
- round boss
- chamber
- water cavity
- 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.)
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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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model belongs to marine engine design and manufacturing technology field, more particularly to a kind of engine cylinder head, include two inlet valves, two exhaust valves, cooling water cavity and the precombustion chamber mounting groove of enclosure interior setting, the middle and lower part of the precombustion chamber mounting groove is equipped with an annular water chamber for being connected to cooling water cavity, which enables the neck of precombustion chamber to be exposed in cooling water cavity；Side where the outbreak surface is equipped with first order round boss and second level round boss, cooling water inlet opening is offered on the outer ring surface of the second level round boss, the cooling water inlet opening along second level round boss the outer wall for extending radially to precombustion chamber and be connected to the annular water chamber, enable cooling water from the annular water chamber flow into cooling water cavity.There is cooling water cavity three layers of water channel i.e. two layers of water cavity to add one layer of cooling water inlet opening, it is ensured that while cylinder head structure intensity, improve cooling effect；Precombustion chamber is in direct contact with the cooling water in cooling water cavity, improves the cooling effect of precombustion chamber.
Description
Technical field
The utility model belongs to marine engine design and manufacturing technology field, and in particular to a kind of engine cylinder head.
Background technology
The use environment and applying working condition of marine engine are different from automobile engine, thus in structure with car engine
There are certain difference, most obvious one differences to be that the volume of marine engine is much greater compared with automobile engine for machine, by
It just needs to be optimized and be transformed accordingly in each functional structure in the increase of volume, engine.Start with orthodox car
The integral type cylinder cap of machine is compared, and the cylinder head above each piston cylinder of marine engine is independent machine-shaping, this is just to cylinder head
Cooling structure and intake and exhaust structure propose new design requirement.
Utility model content
The purpose of this utility model is to provide a kind of engine cylinder head, which carries out intake and exhaust structure and cooling structure
It redesigns, it is ensured that under the premise of cooling water and intake and exhaust flow smoothly, adapted to the power requirement of big-block engine peculiar to vessel.
To achieve the above object, the utility model provides following technical scheme：A kind of engine cylinder head, including in shell
Two inlet valves, two exhaust valves, cooling water cavity and the precombustion chamber mounting groove of portion's setting, housing bottom is equipped with and engine cylinder
The outbreak surface of body cooperation, the precombustion chamber mounting groove vertically run through shell from casing center and are arranged, the cooling water cavity
Around precombustion chamber mounting groove setting, the middle and lower part of the precombustion chamber mounting groove is equipped with an annular water chamber for being connected to cooling water cavity,
The annular water chamber enables the neck of precombustion chamber to be exposed in cooling water cavity；Justify equipped with the first order side where the outbreak surface
Shape boss and second level round boss, the second level round boss are co-axially located on the bottom surface of first order round boss, and
The diameter of second level round boss is less than the diameter of first order round boss, is opened up on the outer ring surface of the second level round boss
Have a cooling water inlet opening, the cooling water inlet opening along second level round boss the outer wall for extending radially to precombustion chamber and with institute
Annular water chamber connection is stated, cooling water is enable to flow into cooling water cavity from the annular water chamber.
The side wall of the cooling water cavity is equipped with ecto-entad and overhangs obliquely the partition board of setting, and the partition board is by cooling water
Chamber is divided into upper layer and lower layer, and the inner end of upper layer and lower layer cooling water cavity is interconnected.
It vertically sees, two inlet valve and two exhaust valves are distributed in positive direction, and the line between two inlet valves
And two lines between exhaust valve is arranged with engine crankshaft arragement direction in 35 ° of angles.
One section of the inner end of the cooling water inlet opening is molded with cooling water cavity integral cast, and institute is removed in cooling water inlet opening
The other parts other than one section of casting and forming are stated by bore process machine-shaping.
An extension tube is terminated on the precombustion chamber mounting groove, the extension tube is protruded upward to cylinder head upper end case
Outside, the spark plug cable in cylinder head is led to the outside of cylinder head case by extension tube, and the upper end of the extension tube is additionally provided with
Ozone gas vent.
The outer ring surface of the first order round boss is equipped with sealing ring.
The edge of the shell is equipped with multiple screw rod connecting holes for vertically running through shell setting.
The utility model has technical effect that：Cooling water cavity have three layers of water channel i.e. two layers of water cavity add one layer of cooling water into
Water hole, it is ensured that while cylinder head structure intensity, improve cooling effect；Precombustion chamber is in direct contact with the cooling water in cooling water cavity,
Improve the cooling effect of precombustion chamber.
Description of the drawings
Fig. 1 is the sectional view of the cylinder head of the utility model；
Fig. 2 is the enlarged diagram at the sectional view A of the cylinder head of the utility model；
Fig. 3 is the cylinder head outbreak surface plan view of the utility model；
Fig. 4 is the stereogram of the cylinder head of the utility model；
Fig. 5 is the sectional view of the cylinder head and cylinder cover enclosure assemble mechanism of the utility model；
Fig. 6 is the I partial enlarged views of Fig. 5.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
As shown in figures 1 to 6, a kind of engine cylinder head, including two inlet valves 13, two that 10 inside of shell is arranged are vented
Door 14,17 mounting groove 12 of cooling water cavity 11 and precombustion chamber, 10 bottom of shell are equipped with the outbreak surface coordinated with engine cylinder body, institute
It states 17 mounting groove 12 of precombustion chamber and vertically runs through the setting of shell 10 from 10 center of shell, the cooling water cavity 11 is around pre-burning
The middle and lower part of room 17 mounting groove 12 setting, 17 mounting groove 12 of the precombustion chamber is equipped with the annular water for being connected to cooling water cavity 11
Chamber 113, the annular water chamber 113 enable the neck of precombustion chamber 17 to be exposed in cooling water cavity 11；One where the outbreak surface
Side is equipped with first order round boss 15 and second level round boss 16, and the second level round boss 16 is co-axially located at the first order
On the bottom surface of round boss 15, and the diameter of second level round boss 16 is less than the diameter of first order round boss 15, and described the
Cooling water inlet opening 111 is offered on the outer ring surface of two level round boss 16, the cooling water inlet opening 111 is along second level circle
The outer wall for extending radially to precombustion chamber 17 of boss 16 is simultaneously connected to the annular water chamber 113, enables cooling water from the annular
Water cavity 113 flows into cooling water cavity 11.There is cooling water cavity 11 three layers of water channel i.e. two layers of water cavity to add one layer of cooling water inlet opening 111,
While ensuring cylinder head structure intensity, cooling effect is improved；Precombustion chamber 17 is in direct contact with the cooling water in cooling water cavity 11, is carried
The high cooling effect of precombustion chamber 17.
Preferably, the side wall of the cooling water cavity 11 is equipped with ecto-entad and overhangs obliquely the partition board 112 of setting, institute
It states partition board 112 and cooling water cavity 11 is divided into upper layer and lower layer, and the inner end of upper layer and lower layer cooling water cavity 11 is interconnected.Partition board
112 help to improve the integral strength of cooling water cavity 11.
Preferably, it vertically sees, two inlet valve, 13 and two exhaust valve 14 is distributed in positive direction, and two inlet valves
The line between line and two exhaust valves 14 between 13 is arranged with engine crankshaft arragement direction in 35 ° of angles.This gas
The valve system arrangement of door form is more simple, has better air flue quality, high load carrying capacity also to improve.
Preferably, one section of the inner end of the cooling water inlet opening 111 is molded with 11 integral cast of cooling water cavity, cooling
Other parts of the water inlet opening 111 in addition to one section of the casting and forming are by bore process machine-shaping.Cooling water inlet opening
111 processing methods combined with casting using drilling can have higher cooling water flow velocity, and the wall thickness between machined surface can be with
Very little contributes to the optimization of structural stress, has the preferable rigidity of structure.
Preferably, 17 mounting groove 12 of the precombustion chamber on be terminated with an extension tube 21, the extension tube 21 is upward convex
The outside of cylinder head upper end case 20 is extended to, the spark plug cable 23 in cylinder head is led to the outer of cylinder head case 20 by extension tube 21
The upper end in portion, the extension tube 21 is additionally provided with ozone gas vent 22.
Further, the outer ring surface of the first order round boss 15 is equipped with sealing ring 151.The side of the shell 10
Edge is equipped with multiple screw rod connecting holes 18 for vertically running through shell 10 and being arranged.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (7)
1. two inlet valves (13) being arranged inside a kind of engine cylinder head, including shell (10), two exhaust valves (14), cooling
Water cavity (11) and precombustion chamber mounting groove (12), shell (10) bottom are equipped with the outbreak surface coordinated with engine cylinder body, feature
It is：The precombustion chamber mounting groove (12) is vertically run through shell (10) from shell (10) center and is arranged, the cooling water
Chamber (11) is arranged around precombustion chamber mounting groove (12), and the middle and lower part of the precombustion chamber mounting groove (12) is connected to cooling water equipped with one
The annular water chamber (113) of chamber (11), the annular water chamber (113) enable the neck of precombustion chamber (17) to be exposed to cooling water cavity (11)
In；Side where the outbreak surface is equipped with first order round boss (15) and second level round boss (16), the second level
Round boss (16) is co-axially located on the bottom surface of first order round boss (15), and the diameter of second level round boss (16) is small
Diameter in first order round boss (15) offers cooling water inlet opening on the outer ring surface of the second level round boss (16)
(111), the cooling water inlet opening (111) along second level round boss (16) the outer wall for extending radially to precombustion chamber (17) simultaneously
It is connected to the annular water chamber (113), cooling water is enable to flow into cooling water cavity (11) from the annular water chamber (113).
2. engine cylinder head according to claim 1, it is characterised in that：The side wall of the cooling water cavity (11) be equipped with by
Overhang the partition board (112) of setting obliquely outside to inside, and cooling water cavity (11) is divided into upper layer and lower layer by the partition board (112), and
The inner end of upper layer and lower layer cooling water cavity (11) is interconnected.
3. engine cylinder head according to claim 1, it is characterised in that：It vertically sees, two inlet valve (13)
The line between line and two exhaust valves (14) with two exhaust valves (14) in positive direction distribution, and between two inlet valves (13)
It is arranged in 35 ° of angles with engine crankshaft arragement direction.
4. engine cylinder head according to claim 1, it is characterised in that：The inner end of the cooling water inlet opening (111)
One section is molded with cooling water cavity (11) integral cast, and cooling water inlet opening (111) are in addition to one section of the casting and forming
Other parts are by bore process machine-shaping.
5. engine cylinder head according to claim 1, it is characterised in that：The upper end of precombustion chamber (17) mounting groove (12)
It is connected to an extension tube (21), the extension tube (21) protrudes upward to the outside of cylinder head upper end case (20), the fire in cylinder head
Flower plug cable (23) is led to the outsides of cylinder head case (20) by extension tube (21), and the upper end of the extension tube (21) is additionally provided with smelly
Oxygen gas vent (22).
6. engine cylinder head according to claim 1, it is characterised in that：The outer ring surface of the first order round boss (15)
It is equipped with sealing ring (151).
7. engine cylinder head according to claim 1, it is characterised in that：The edge of the shell (10) is equipped with multiple along perpendicular
Histogram is to the screw rod connecting hole (18) being arranged through shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547128.5U CN207673449U (en) | 2017-11-17 | 2017-11-17 | A kind of engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547128.5U CN207673449U (en) | 2017-11-17 | 2017-11-17 | A kind of engine cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673449U true CN207673449U (en) | 2018-07-31 |
Family
ID=62964598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721547128.5U Active CN207673449U (en) | 2017-11-17 | 2017-11-17 | A kind of engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673449U (en) |
-
2017
- 2017-11-17 CN CN201721547128.5U patent/CN207673449U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |