CN108691636A - The concubine of internal combustion engine constructs - Google Patents
The concubine of internal combustion engine constructs Download PDFInfo
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- CN108691636A CN108691636A CN201810263875.9A CN201810263875A CN108691636A CN 108691636 A CN108691636 A CN 108691636A CN 201810263875 A CN201810263875 A CN 201810263875A CN 108691636 A CN108691636 A CN 108691636A
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- Prior art keywords
- concubine
- hole
- bolt
- combustion engine
- internal combustion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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- 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
- F01P3/12—Arrangements for cooling other engine or machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The present invention provides a kind of concubine construction of internal combustion engine, can inhibit the temperature rise of partition.The concubine construction of internal combustion engine (1) has:Combustion chamber wall surface (7), is formed in the lower surface of cylinder head (3), cooperates with piston (11) and forms main chamber (12);Accepting hole (20), recess are arranged in combustion chamber wall surface;Partition (23), is inserted into accepting hole, cooperates with accepting hole and form concubine (24);Bolt hole (27) runs through cylinder head, is opened on the bearing surface (20C) of accepting hole abutted with partition;Internal thread hole (26) with the end, is formed on partition, is connect with bolt hole;Bolt (30), is inserted in from the side opposite with accepting hole in bolt hole, is screwed togather in end and internal thread hole, and partition is anchored on cylinder head;And multiple boshes (30D), they be recessed be arranged on the peripheral surface of bolt or the inner peripheral surface of bolt hole and internal thread hole on, extend and reach the bottom of internal thread hole on the axis direction of bolt.
Description
Technical field
The present invention relates to the concubine of internal combustion engine constructions.
Background technology
There is known divided chamber internal combustion engine, which has the combustion chamber for being divided into main chamber and concubine.
Divided chamber internal combustion engine lights a fire to mixed gas in concubine, utilizes what is sprayed from concubine to main chamber via intercommunicating pore
The flame of torch-like and make main burning indoor mixed gas igniting.Concubine is by being inserted into the hole for be formed in combustion chamber wall surface
Enter the partition for being formed as having bottomless drum shape and is fixed and forms (for example, patent document 1 and 2).
Patent document 1:Japanese Unexamined Patent Publication 2010-96089 bulletins
Patent document 2:Japanese Unexamined Patent Publication 7-63058 bulletins
Since mixed gas passes through intercommunicating pore in the internal-combustion of partition and flame, partition with
The wall surface of formation main chamber, which is compared, to be easier to become high temperature.Since partition becomes high temperature, thus mixed gas
Fire improves, but may become the starting point early fired when the temperature is excessively high.It is therefore preferable that inhibiting the temperature rise of partition.
Invention content
The present invention is in view of above background, project, provides the interior of the temperature rise that can inhibit partition
The concubine of combustion engine constructs.
In order to solve the above problems, one embodiment of the present invention provides a kind of concubine construction of internal combustion engine, which is characterized in that
The concubine construction of the internal combustion engine has:Combustion chamber wall surface 7 is formed in the lower surface of cylinder head 3, cooperates and is formed with piston 11
Main chamber 12;Accepting hole 20, recess are arranged in the combustion chamber wall surface;Partition 23 is inserted into described
In accepting hole, cooperates with the accepting hole and form concubine 24;Bolt hole 27 runs through the cylinder head, in the accepting hole
In the bearing surface 20C abutted with the partition on be open;Internal thread hole 26 with the end, is formed in the partition wall
On component, it is connect with the bolt hole;Bolt 30 is inserted in the bolt hole from the side opposite with the accepting hole
In, it is screwed togather in end and the internal thread hole, the partition is anchored in the cylinder head;And multiple cooling waters
Slot 30D, they are recessed to be arranged on the peripheral surface of the bolt or be recessed and be arranged in the bolt hole and the internal thread hole
Inner peripheral surface on, extend on the axis direction of the bolt, and connect with the bottom of the internal thread hole 32.
According to which, partition is anchored in cylinder head in a hanging manner by bolt.In the outer of bolt
Formed between circumferential surface and the inner peripheral surface of bolt hole and internal thread hole the Cooling Water that is marked off by bosh by access, it is cold
But water is fed into the bottom of internal thread hole.Due to being provided with multiple boshes, at least one in bosh be to
The bottom of internal thread hole supplies the supply passageway of cooling water, and at least another 1 in bosh is to be arranged from the bottom of internal thread hole
Go out the return path of cooling water, cooling water flows through the bottom of internal thread hole.The cooled water cooling of partition as a result, inhibits
Early combustion.
Also, in above-mentioned mode, Ke Yishi, the concubine construction of the internal combustion engine also has the side with the bolt hole
The cooling water inlet access 53 and cooling water outlet access 54 of connection, the bosh are formed in the peripheral surface of the bolt,
The end of the bolt is reached, at least one in the bosh is connect with the cooling water inlet access, and others are at least
1 bosh is connect with the cooling water outlet access.
It, need not be in the separation as smaller component since bosh is formed in bolt according to which
The space for being used to form bosh is ensured on wall components.Also, when on bolt be arranged bosh in the case of, due to
Bosh, therefore handling ease are formed on peripheral surface.
Also, in above-mentioned mode, Ke Yishi, the open end of the direction bolt hole of the cooling water inlet access
The open end 54A of the direction bolt hole of 53A and the cooling water outlet access is respective centered on the bolt
Smaller value in angular width θ 1, θ 2 is set to be greater than angle [alpha] 1 in the circumferential direction between the bosh, α
2, the maximum value in α n.
According to which, no matter the rotatable phase of bolt, at least one in bosh and cooling water inlet access
Connection, and at least another 1 in bosh connect with cooling water outlet access.Therefore, make in the fastening of partition
When industry the rotatable phase of bolt need not be aligned, terminal operation becomes easy.
Also, in above-mentioned mode, Ke Yishi, the partition has:Main part 23B, with recess portion
23A, recess portion 23A form a part for the concubine towards a side opening opposite with the main chamber;And ear
23C, protrudes from the main part to side, and the internal thread hole is formed in the ear.
According to which, can ensure to be used to form on partition interior in the case where not making main part become larger
The space of threaded hole.
Also, in above-mentioned mode, Ke Yishi, the accepting hole is formed as making the main part and the ear with not
The revolvable mode shape chimeric with the accepting hole.
According to which, when using the terminal operation of bolt, partition becomes to hold relative to the positioning of accepting hole
Easily.
Also, in above-mentioned mode, Ke Yishi, the accepting hole is arranged at the center of the combustion chamber wall surface, institute
Ear is stated to protrude from the main part to the direction parallel with crankshaft center line.And it is possible to be opened in the combustion chamber wall surface
Equipped with 2 air inlets 14 and 2 exhaust outlets 16, the ear be configured in the adjacent air inlet and the exhaust outlet it
Between.
According to which, ear is configured as avoiding the air inlet and exhaust outlet being set in combustion chamber wall surface.
Also, in above-mentioned mode, Ke Yishi, the ear is provided with a pair, the ear from the main part with
Crankshaft center line parallelly protrudes in the opposite directions to each other, and the internal thread hole is formed in each ear, for each institute
It states internal thread hole and is equipped with the bolt hole and is provided with the bolt of the bosh.
According to which, since partition fastens at the ear for being set to reciprocal both sides, point
Partition wall member is reliably fastened in cylinder head.Also, partition is cooled in both sides, it is suppressed that temperature rise.
Also, in above-mentioned mode, the concubine construction of Ke Yishi, the internal combustion engine are also described with ignition part to be configured at
Igniter plug 42 in concubine, the axis of the igniter plug are configured in vertical with the crankshaft center line and by the chamber wall
On the face in the center in face.
According to which, air inlet and exhaust outlet can be avoided and configure igniter plug.
Also, in above-mentioned mode, Ke Yishi, the concubine construction of the internal combustion engine also has is configured at the pair by spray orifice
Injector 41 in room, the axis of the injector are configured in vertical with the crankshaft center line and by the combustion chamber wall surface
Center face on.
According to which, air inlet and exhaust outlet can be avoided and configure injector.
According to above structure, it is capable of providing the concubine construction of the internal combustion engine for the temperature rise that can inhibit partition.
Description of the drawings
Fig. 1 is the sectional view of the internal combustion engine of embodiment (along the sectional view of the I-I lines of Fig. 4).
Fig. 2 is the sectional view of the internal combustion engine of embodiment (along the sectional view of the II-II lines of Fig. 4).
Fig. 3 is the sectional view (enlarged drawing in the portions III of Fig. 2) for enlargedly showing the cylinder head around bolt.
Fig. 4 is the upward view for the cylinder head for showing combustion chamber wall surface.
Fig. 5 is the sectional view for the position relationship for showing bolt, cooling water inlet access and cooling water outlet access.
Label declaration
1:Internal combustion engine;3:Cylinder head;7:Combustion chamber wall surface;12:Main chamber;15:Air inlet;16:Exhaust outlet;20:It receives
Rong Kong;20C:Bottom surface;23:Partition;23A:Recess portion;23B:Main part;23C:Ear;23F:Upper surface;24:Concubine;
26:Internal thread hole;27:Bolt hole;30:Bolt;30A:Axle portion;30B:Head;30C:External screw thread;30D:Bosh;32:It is empty
Between;34:Intercommunicating pore;35:Connecting path;36:Injector holes;37:Igniting consent;41:Injector;42:Igniter plug;50:Cylinder
Lid side water jacket;53:Cooling water inlet access;53A:Open end;54:Cooling water outlet access;54A:Open end;A:Cylinder axis
Line.
Specific implementation mode
Hereinafter, with reference to attached drawing, the embodiment to applying the present invention to internal combustion engine illustrates.
Internal combustion engine 1 is 4 stroke IC engines, and as depicted in figs. 1 and 2, with engine main body 4, which includes
The cylinder head 3 of cylinder block 2 and the upper surface for being anchored on cylinder block 2.It is formed in cylinder block 2 on the upper surface of cylinder block 2
The section of opening is circular cylinder 5.The axis of cylinder 5 is set as cylinder-bore axis A.On the lower face of cylinder head 3 with cylinder 5
Upper end it is opposed be partially toward top recess, form constitute cylinder 5 upper end combustion chamber wall surface 7.7 shape of combustion chamber wall surface
As so-called ridge-shaped.
Piston 11 is contained in cylinder 5, piston 11 can move back and forth along cylinder-bore axis A.Combustion chamber wall surface 7
It cooperates with the apical cap face of piston 11 and forms main chamber 12.Piston 11 is connect via connecting rod with bent axle (not shown).It will be bent
The extending direction of axis is set as crankshaft center line direction.
As shown in Figure 1 and Figure 4,2 air inlets 15 and 2 exhaust outlets 16 are offered in combustion chamber wall surface 7.When will be with song
When axis axis and the vertical directions cylinder-bore axis A are set as air intake-exhaust direction, in combustion chamber wall surface 7, as air intake-exhaust
The air inlet side of the side in direction is configured with 2 air inlets 15, and 2 exhaust outlets 16 are configured in the exhaust side as the other side.Into
The open end of 7 side of combustion chamber wall surface of gas port 15 and exhaust outlet 16 by intake valve 17 as poppet and air bleeding valve 18 by
Opening and closing.
As shown in Figure 1 to 4, the accepting hole 20 being recessed upward is provided in the concavity of combustion chamber wall surface 7.It receives
Holding hole 20 has the circular hole portion 20A being coaxially formed with cylinder-bore axis A and is recessed from the periphery of circular hole portion 20A towards radial outside
The locking groove portion 20B of a pair.A pair of locking groove portion 20B relative to circular hole portion 20A configure side on crankshaft center line direction and
The other side.Also, a pair of locking groove portion 20B is individually configured between air inlet 15 adjacent to each other and exhaust outlet 16.Accepting hole
20 bottom surface 20C is formed by the upper surface of circular hole portion 20A and a pair of locking groove portion 20B, and is formed as vertical with cylinder-bore axis A
Continuous plane.
Partition 23 is contained in accepting hole 20.Partition 23 cooperates with accepting hole 20 and forms concubine
24.Partition 23 has:Main part 23B has the recess portion for the part for being open and being formed concubine 24 upward
23A;And a pair of ear 23C, it is protruded from main part 23B to side.Main part 23B has:Axis vertically extends
Section be circular canister portion 23D;And by the lower wall portion 23E of the lower end closed of canister portion 23D.Each ear 23C is from main part 23B
Peripheral part to radial outside and opposite directions it is prominent.
As shown in figure 4, when from the direction along cylinder-bore axis A, formed by main part 23B and a pair of ear 23C
The shape of partition 23 be formed as the shape with the accepting hole 20 formed by circular hole portion 20A and the locking groove portion 20B of a pair
Complementary shape.As a result, by the way that partition 23 is inserted in from below in accepting hole 20, main part 23B and circular hole portion 20A
Chimeric, Shi Ge ears 23C is chimeric with corresponding locking groove portion 20B.By by a pair of of ear 23C engaging in corresponding locking groove portion
In 20B so that partition 23 is entrenched in a manner of not revolvable in accepting hole 20.
As depicted in figs. 1 and 2, it is formed with continuously in the upper end of the main part 23B of partition 23 and each ear 23C
Planar upper surface 23F.Partition 23 abuts at the 23F of upper surface with the bottom surface 20C of accepting hole 20.Such as Fig. 2 and Fig. 3
It is shown, the internal thread hole with the end 26 being open on the 23F of upper surface is formed on each ear 23C.Each internal thread hole 26 and gas
Cylinder axis A is extended parallel to.
On the head 3, it is circle to be respectively formed with perforative section up and down in part corresponding with each internal thread hole 26
Bolt hole 27.The lower end of each bolt hole 27 is open on the bottom surface 20C of accepting hole 20, and the upper end of each bolt hole 27 is in cylinder head
It is open on 3 upper surface.It is formed with spot facing 28 around each bolt hole 27 on the upper surface of cylinder head 3.It corresponds
Bolt hole 27 coaxially connect with internal thread hole 26, parallelly linearly extend with cylinder-bore axis A.
Bolt 30 is inserted in the bolt hole 27 and internal thread hole 26 of interconnection.Bolt 30 has:Columned axis
Portion 30A, be set to axle portion 30A cardinal extremity head 30B and be set to axle portion 30A end peripheral surface external screw thread 30C.
Also, recess is provided with multiple bosh 30D on the peripheral surface of axle portion 30A.Axis of each bosh 30D in axle portion 30A
Line linearly extends on direction, and each bosh 30D reaches the end of axle portion 30A across external screw thread 30C.
Each bolt 30 is inserted into from the end (upper end) with 20 opposite side of accepting hole in bolt hole 27, each bolt 30
End protrudes into internal thread hole 26, and is screwed togather with internal thread hole 26 at the external screw thread 30C of end.The head 30B of bolt 30
It is abutted with the upper surface of cylinder head 3 by means of seal member.In this way, partition 23 is anchored on gas by each bolt 30
Cylinder cap 3.In other words, partition 23 is suspended on by each bolt 30 in accepting hole 20.
The cross-sectional area of each bosh 30D is formed as in peripheral surface and internal thread hole 26 relative to external screw thread 30C
The cross in the gap between the cross-sectional area in the gap between circumferential surface and the peripheral surface of axle portion 30A and the inner peripheral surface of bolt hole 27
Sectional area is sufficiently large.
In the state of by bolt 30 by cylinder head 3 and partition 23 secured to one another, the end of axle portion 30A with
Space 32 is formed between internal thread bottom.One end of each bosh 30D is connect with space 32.
As depicted in figs. 1 and 2, the lower wall portion 23E of partition 23 is formed towards the substantially hemispherical that lower section is protruded,
It is protruded downwards from combustion chamber wall surface 7.The face (lower surface) towards 12 side of main chamber of lower wall portion 23E is formed as and combustion chamber
The plane that wall surface 7 is smoothly connected.The recess portion 23A for forming the partition 23 of concubine 24 is formed to be generally spherical.In lower wall portion
The multiple intercommunicating pores 34 for running through in a thickness direction and being connected to main chamber 12 with concubine 24 are formed on 23E.Each intercommunicating pore
34 linearly extensions, 1 point of intersection of their own axis in concubine 24 are intersected with each other.That is, each intercommunicating pore 34 be in
Radiated entend centered on intersection point.Each intercommunicating pore 34 is formed as rotational symmetry shape centered on the axis of partition 23,
The intersection point of each intercommunicating pore 34 is located on the axis of the partition 23 consistent with cylinder-bore axis A.In the present embodiment, it is connected to
Hole 34 is provided with 6, and each intercommunicating pore 34 is equally spaced configured in the circumferential centered on the axis of partition 23.Main burning
Room 12 is only communicated with each other by multiple intercommunicating pores 34 with concubine 24, can be circulated for fluid.Main chamber 12 exists with concubine 24
It is separated from each other at other part other than intercommunicating pore 34, the circulation of fluid is cut off.
Be formed on the head 3 above the mediad of the bottom surface 20C of accepting hole 20 extend connecting path 35 and
The injector holes 36 and igniting consent 37 being connect with connecting path 35.Recess portion of the connecting path 35 in lower end and partition 23
23A connections form a part for concubine 24.Injector holes 36 and igniting consent 37 are opened in upper end on the upper surface of cylinder head 3
Mouthful, it is connect with the upper end of connecting path 35 in lower end.Injector holes 36 configure in the plane vertical with crankshaft center line, towards upper
Direction air inlet side tilts.When from the direction along cylinder-bore axis A, injector holes 36 are configured in adjacent air inlet 15
Between.Igniting consent 37 is configured in the plane vertical with crankshaft center line, is tilted to exhaust side upward.From along gas
When the direction observation of cylinder axis A, injector holes 36 are configured between adjacent exhaust outlet 16.
Inserted with injector 41 in injector holes 36.Injector 41 is the list of injecting LPG in liquefied condition or gaseous fuel
Member.There is injector 41 nozzle 41A, nozzle 41A to have the spray orifice of injection fuel in end.Injector is configured with spray
The end of the nozzle 41A in hole is located in connecting path 35.
Inserted with the igniter plug 42 as spark plug in consent 37 of lighting a fire.Igniter plug 42 has:The master extended in shaft-like
Body portion 42A, be set to main part 42A end center central electrode 42B and protruded from the end periphery of main part 42A
Grounding electrode 42C.Be formed with external screw thread on the peripheral surface of main part 42A, be formed in igniting consent 37 lower part in
Threads.It is ignition part between central electrode 42B and the terminal part of grounding electrode 42C, central electrode 42B is applied in igniting
Making alive is to generate spark.Central electrode 42B and grounding electrode 42C are configured in connecting path 35.
It is formed with the cylinder head side water jacket 50 of Cooling Water circulation on the head 3.Cylinder head side water jacket 50 primarily forms
Around combustion chamber wall surface 7 and exhaust outlet 16.Cylinder head side water jacket 50 has:The gas being open on the lower face of cylinder head 3
The cylinder head side being open on the end face of cylinder cap side cooling water inlet 50A and the side on the crankshaft center line direction of cylinder head 3
Cooling water outlet (not shown).
It is formed with cylinder block side water jacket 51 around the cylinder 5 of cylinder block 2.Cylinder block side water jacket 51 has:In cylinder
What is be open on the side of body 2 cylinder block side cooling water inlet (not shown) and the cylinder that is open on the upper surface of cylinder block 2
Side cooling water outlet 51A.
Cylinder head side cooling water inlet 50A and cylinder block side cooling water outlet 51A are connected to each other, and cylinder block side cooling water enters
Mouth and cylinder head side cooling water outlet are connect with the cooling water path with water pump.Cooling water passes sequentially through gas by means of water pump
Cylinder body side water jacket 51, cylinder head side water jacket 50 are recycled.
As shown in Figures 2 and 3, it is formed with the cooling for connecting cylinder head side water jacket 50 and bolt hole 27 on the head 3
Water inlet access 53 and cooling water outlet access 54.The pressure of cooling water inlet access 53 and the cooling water in cylinder head side water jacket 50
The power part connection higher than the part for being connected with cooling water outlet access 54.For example, cooling water inlet access 53 in cylinder head
It is connected by the part of the cylinder head side cooling water inlet sides 50A in side water jacket 50 than being connected with the part of cooling water outlet access 54.
Cooling water inlet access 53 and cooling water outlet access 54 are connect with the side of bolt hole 27.From along bolt hole
When the direction observation of 27 axis, the open end 53A (connecting pin) and cooling water of 27 side of bolt hole of cooling water inlet access 53
The open end 54A (connecting pin) of 27 side of bolt hole of exit passageway 54 is in staggered configuration in the circumferential in a manner of not overlapping each other.
Cooling water inlet access 53 is connect at least one bosh 30D in bosh 30D, cooling water outlet access 54 with it is cold
But other at least one boshes other than the bosh 30D being connect with cooling water inlet access 53 in sink 30D
30D connections.
As shown in figure 5, centered on the axis of bolt hole 27, by the angle of the open end 53A of cooling water inlet access 53
Width is set as θ 1, and the angular width of the open end 54A of cooling water outlet access 54 is set as θ 2, will be between each bosh 30D
Circumferential direction on angle (interval) be set as α 1, α 2, α n, in such a situation it is preferred that meeting relational expression below (1).
Max (α 1, α 2, α n) < min (θ 1, θ 2) (1)
I.e., it is possible to be set as:The angular width θ 1 of the open end 53A of cooling water inlet access 53 and cooling water outlet access
Smaller value in the angular width θ 2 of 54 open end 54A is more than in the angle in the circumferential direction between bosh 30D most
Big value.By meeting the relational expression (1), no matter the rotation angle of bolt 30, cooling water inlet access 53 is cooled down at least one
Sink 30D connections, cooling water outlet access 54 and the cooling in addition to being connect with cooling water inlet access 53 in bosh 30D
Other at least one boshes 30D connections except sink 30D.The terminal operation carried out as a result, using bolt 30 becomes to hold
Easily.
Also, the open end 54A of the open end 53A and cooling water outlet access 54 due to cooling water inlet access 53 cannot
It is connected to each other, therefore the opening of the angular width θ 1 and cooling water outlet access 54 of the open end 53A of cooling water inlet access 53
Hold the smaller value in the angular width θ 2 of 54A that must be set to be less than 180 ° of value.In this case, bosh 30D
Quantity be necessary for 3 or more.
Also, works as and set the angular width centered on the axis of the bolt hole 27 of each bosh 30D as β 1, β
2, when β n, between the open end 53A of cooling water inlet access 53 and the open end 54A of cooling water outlet access 54 between
Every angle be set to than the maximum value in the angular width (β 1, β 2, β n) of each bosh 30D it is big.By
This, avoids the case where 1 bosh 30D is connect with cooling water inlet access 53 and 54 both sides of cooling water outlet access.Respectively
The total of the angular width of bosh 30D must be set to be less than 360 ° of value.
In the present embodiment, since bosh 30D has been equally spaced 4 in the circumferential, bosh
1~α of angle [alpha] 4 between 30D is 90 °.It therefore, can be by the angular width θ 1 of the open end 53A of cooling water inlet access 53
And the angular width θ 2 of the open end 54A of cooling water outlet access 54 is respectively set as the value bigger and smaller than 180 ° than 90 °.
Hereinafter, being illustrated to the effect of the internal combustion engine 1 of present embodiment.Flow through the cooling water of cylinder head side water jacket 50 by
Pressure difference between cooling water inlet access 53 and cooling water outlet access 54 and pass sequentially through cooling water inlet access 53, with
Cooling water inlet access 53 connect at least one bosh 30D, be set to internal thread hole 26 bottom space 32, with it is cold
But at least one bosh 30D and cooling water outlet access 54 that water out access 54 connects, and return to cylinder head side water
Set 50.Partition 23 is cooled down using the cooling water by the space 32 inside partition 23, it is suppressed that with
Partition 23 is the early combustion of starting point.
The cross-sectional area of each bosh 30D is formed peripheral surface and internal thread hole 26 relative to external screw thread 30C
Gap between the cross-sectional area in the gap between inner peripheral surface and the peripheral surface of axle portion 30A and the inner peripheral surface of bolt hole 27
Both cross-sectional areas are sufficiently large, therefore cooling water is flowed by bosh 30D.
Due to by multiple bosh 30D form supplied to the space 32 for the bottom for being formed in internal thread hole 26 it is cold
But the supply passageway of water and the drain passageway both sides from the discharge of space 32 cooling water, therefore cooling water can be by space 32
Flowing.
It, need not be in the divider wall parts as smaller component since bosh 30D is formed on bolt 30
The space for being used to form bosh 30D is ensured on part 23.Also, in the case that bosh 30D is set on bolt 30,
Due to forming bosh 30D, handling ease on peripheral surface.Also, with bolt hole 27, the partition wall in cylinder head 3
The case where bosh 30D is processed in 26 the two of internal thread hole of component 23 is compared, as the processing bosh 30D on bolt 30
In the case of, the component as processing object is few, alleviates operating load.
Partition 23 due to using the structure being embedded in a manner of not revolvable in accepting hole 20, be easy into
Positioning of the row relative to cylinder head 3.Also, partition 23 is anchored on cylinder head 3 by bolt 30 through cylinder head 3
On, therefore the possibility fallen in main chamber 12 is low.Also, bolt 30 will not be exposed in main chamber 12, Bu Huibao
Burning gases are exposed to, therefore inhibit deterioration, can reliably support partition 23.Also, since bolt 30 is passed through
The cooling water of bosh 30D and cool down, therefore when inhibiting the operating along with internal combustion engine 1 and the temperature change of the when of stopping
It thermally expands and restores, fastening part is not allowed to be also easy to produce relaxation.
More than, terminate the explanation of specific embodiment, but the present invention is not limited to the above embodiments, can widely become
Shape is implemented.For example, bosh 30D can also be formed on the inner peripheral surface of bolt hole 27 and internal thread hole 26, to replace being formed
In the peripheral surface of the axle portion 30A of bolt 30.
A side in injector holes 36 and igniting consent 37 can also be with cylinder-bore axis arranged coaxial.Also, in others
In embodiment, injector holes 36 can also replace connecting and using and combustion chamber wall surface 7 or air inlet 15 with connecting path 35
Wall surface connection structure.In this case, injector 41 not sprays fuel towards concubine 24, and towards main chamber 12 or
Person's air inlet 15 sprays fuel.
On the axis direction of bolt hole 27, open end 53A and the cooling water outlet access 54 of cooling water inlet access 53
The relative position of open end 54A can be consistent with each other, can also be staggered.
Can also internal thread be set on the inner peripheral surface of bolt hole 27, setting and bolt hole on the axle portion 30A of bolt 30
The external screw thread of the internal screw-thread screw of 27 inner peripheral surface.In this case, the open end 53A and cooling water of cooling water inlet access 53
The female part of setting that the open end 54A of exit passageway 54 can be configured on the inner peripheral surface of bolt hole 27.
Claims (10)
1. a kind of concubine of internal combustion engine constructs, which is characterized in that the concubine construction of the internal combustion engine has:
Combustion chamber wall surface is formed in the lower surface of cylinder head, cooperates with piston and form main chamber;
Accepting hole, recess are arranged in the combustion chamber wall surface;
Partition is inserted into the accepting hole, is cooperated with the accepting hole and is formed concubine;
Bolt hole runs through the cylinder head, is opened on the bearing surface of the accepting hole abutted with the partition;
Internal thread hole with the end is formed on the partition, is connect with the bolt hole;
Bolt is inserted in the bolt hole from the side opposite with the accepting hole, in end and the internal thread hole
It screws togather, the partition is anchored in the cylinder head;And
Multiple boshes, they be recessed be arranged on the peripheral surface of the bolt or be recessed be arranged the bolt hole with
And on the inner peripheral surface of the internal thread hole, extend on the axis direction of the bolt, and connects with the bottom of the internal thread hole
It connects.
2. the concubine of internal combustion engine according to claim 1 constructs, which is characterized in that
The concubine construction of the internal combustion engine also has the cooling water inlet access and cooling water being connect with the side of the bolt hole
Exit passageway,
The bosh is formed in the peripheral surface of the bolt, reaches the end of the bolt,
At least one in the bosh is connect with the cooling water inlet access, bosh described in other at least one
It is connect with the cooling water outlet access.
3. the concubine of internal combustion engine according to claim 2 constructs, which is characterized in that
The open end of the direction bolt hole of the cooling water inlet access and the cooling water outlet access towards institute
State the smaller value in the respective angular width centered on the bolt in open end of bolt hole be set to be greater than it is described
The maximum value in the angle in circumferential direction between bosh.
4. the concubine of internal combustion engine according to claim 1 constructs, which is characterized in that
The partition has:Main part, with recess portion, which opens towards the side opposite with the main chamber
Mouthful, form a part for the concubine;And ear, it is protruded from the main part to side,
The internal thread hole is formed in the ear.
5. the concubine of internal combustion engine according to claim 4 constructs, which is characterized in that
The accepting hole is formed as making the main part and the ear shape chimeric with the accepting hole in a manner of not revolvable
Shape.
6. the concubine of internal combustion engine according to claim 4 constructs, which is characterized in that
The accepting hole is arranged at the center of the combustion chamber wall surface,
The ear protrudes from the main part to the direction parallel with crankshaft center line.
7. the concubine of internal combustion engine according to claim 6 constructs, which is characterized in that
2 air inlets and 2 exhaust outlets are offered in the combustion chamber wall surface,
The ear is configured between the adjacent air inlet and the exhaust outlet.
8. the concubine of internal combustion engine according to claim 6 constructs, which is characterized in that
It is provided with a pair of ear, the ear parallelly dashes forward from the main part with crankshaft center line in the opposite directions to each other
Go out,
The internal thread hole is formed in each ear,
It is equipped with the bolt hole for each internal thread hole and is provided with the bolt of the bosh.
9. the concubine of internal combustion engine according to claim 6 constructs, which is characterized in that
The concubine construction of the internal combustion engine also has is configured at the igniter plug in the concubine by ignition part,
The axis of the igniter plug is configured in the face in center vertical with the crankshaft center line and by the combustion chamber wall surface
On.
10. the concubine of internal combustion engine according to claim 6 constructs, which is characterized in that
The concubine construction of the internal combustion engine also has is configured at the injector in the concubine by spray orifice,
The axis of the injector is configured in the face in center vertical with the crankshaft center line and by the combustion chamber wall surface
On.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-069545 | 2017-03-31 | ||
| JP2017069545A JP6770474B2 (en) | 2017-03-31 | 2017-03-31 | Sub-chamber structure of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108691636A true CN108691636A (en) | 2018-10-23 |
| CN108691636B CN108691636B (en) | 2020-07-14 |
Family
ID=63844629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263875.9A Active CN108691636B (en) | 2017-03-31 | 2018-03-28 | Auxiliary chamber structure of internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6770474B2 (en) |
| CN (1) | CN108691636B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324723A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Combustion system and gas engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7260332B2 (en) * | 2019-02-27 | 2023-04-18 | ダイハツ工業株式会社 | Cylinder head with auxiliary combustion chamber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB942169A (en) * | 1960-08-11 | 1963-11-20 | Motoren Werke Mannheim Ag | Improvements in or relating to cylinder head arrangements for internal combustion engines |
| JP2001132603A (en) * | 1999-10-21 | 2001-05-18 | Caterpillar Inc | Cooling type precombustion chamber assembly |
| JP3295163B2 (en) * | 1993-03-04 | 2002-06-24 | ヤマハ発動機株式会社 | Hot plug holding structure for diesel engine |
| CN205315109U (en) * | 2016-01-15 | 2016-06-15 | 重庆交通大学 | High cetane number fuel sprayer assembly of dual -fuel engine |
| CN205638680U (en) * | 2016-05-09 | 2016-10-12 | 中国石油集团济柴动力总厂 | Gas engine antechamber and mounting structure thereof |
-
2017
- 2017-03-31 JP JP2017069545A patent/JP6770474B2/en not_active Expired - Fee Related
-
2018
- 2018-03-28 CN CN201810263875.9A patent/CN108691636B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB942169A (en) * | 1960-08-11 | 1963-11-20 | Motoren Werke Mannheim Ag | Improvements in or relating to cylinder head arrangements for internal combustion engines |
| JP3295163B2 (en) * | 1993-03-04 | 2002-06-24 | ヤマハ発動機株式会社 | Hot plug holding structure for diesel engine |
| JP2001132603A (en) * | 1999-10-21 | 2001-05-18 | Caterpillar Inc | Cooling type precombustion chamber assembly |
| CN205315109U (en) * | 2016-01-15 | 2016-06-15 | 重庆交通大学 | High cetane number fuel sprayer assembly of dual -fuel engine |
| CN205638680U (en) * | 2016-05-09 | 2016-10-12 | 中国石油集团济柴动力总厂 | Gas engine antechamber and mounting structure thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324723A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Combustion system and gas engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018172970A (en) | 2018-11-08 |
| CN108691636B (en) | 2020-07-14 |
| JP6770474B2 (en) | 2020-10-14 |
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