CN105715443B - Engine igniting system mounting device and engine with the device - Google Patents
Engine igniting system mounting device and engine with the device Download PDFInfo
- Publication number
- CN105715443B CN105715443B CN201610204028.6A CN201610204028A CN105715443B CN 105715443 B CN105715443 B CN 105715443B CN 201610204028 A CN201610204028 A CN 201610204028A CN 105715443 B CN105715443 B CN 105715443B
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- Prior art keywords
- spacer
- sealing
- harness
- mounting device
- system mounting
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 151
- 125000006850 spacer group Chemical group 0.000 claims abstract description 144
- 238000005056 compaction Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 239000003345 natural gas Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Abstract
The invention discloses a kind of engine igniting system mounting devices, including the spacer covered at outside spark plug and high-tension ignition harness, the bottom end of spacer is provided with the interconnecting piece for connecting with cylinder cap, end part seal circle is arranged with outside top, end part seal circle includes the first sealing and the second sealing annular in shape, first sealing is provided with sealing lip, and the elastic component for the radial compaction sealing lip along spacer is provided with outside sealing lip；The top surface of second sealing is bonded with the connecting end surface for connecting with cylinder cover enclosure of high-tension ignition harness, and bottom surface is bonded with end face opposite with connecting end surface in cylinder cover enclosure harness hole.Using engine igniting system mounting device provided by the invention, the contact for realizing the sealing around spark plug effectively to completely cut off it with medium guarantees the normal ignition work of spark plug, and then improves the reliability of engine.The invention also discloses a kind of engines including above-mentioned engine igniting system mounting device.
Description
Technical field
The present invention relates to technical field of engines, more specifically to a kind of engine igniting system mounting device, also
It is related to a kind of engine including above-mentioned engine igniting system mounting device.
Background technique
Engine is formed as the power of vehicle, and working condition directly affects the performance of vehicle.Ignition system is vapour
The important component of oil turbine, ignition system it is functional whether to the power of engine, oil consumption and exhaust pollution etc.
It influences very big.Ignition system refer generally between two electrode of spark plug generate electric spark armamentarium, usually by battery,
The composition such as generator, ignition distributor, ignition coil and spark plug.
At present for natural gas engine, ignition system in cylinder is mostly used, needs high-voltage pulse passing to spark plug, make
Obtain the gaseous mixture in spark ignitor engine.It needs in high-voltage pulse transmittance process across cylinder cover enclosure, and in cylinder cover enclosure
Portion is full of oil gas, if oil gas enters spark plug and high-voltage wiring harness binding site, high-voltage line is easy to produce electric leakage, and then causes
Plug ignition is abnormal, influences engine work.Meanwhile natural gas engine has the requirement of periodic replacement spark plug,
And the operating environment requirements isolation cooling water of spark plug, the media such as lubricating oil, therefore need to be reliable close to being realized around spark plug
Envelope, to completely cut off spark plug and medium.
In the prior art often by setting spacer to completely cut off spark plug and medium, and the harness hole on spacer and cylinder cover enclosure
Between pass through oil sealing sealing.However, bolt and hole itself have gap since cylinder cover enclosure is fastened by bolts on cylinder cap, cover
Coaxial accuracy is very poor between the online beam hole of shell and spacer, poor with common oil sealing sealing.
Spark plug point is in turn resulted in conclusion how to efficiently solve spark plug poor sealing effect and be difficult to completely cut off with medium
The problems such as fire is abnormal, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, the first purpose of this invention is to provide a kind of engine igniting system mounting device, this starts
The structure design of machine ignition system mounting device can efficiently solve spark plug poor sealing effect and be difficult to completely cut off in turn with medium
The abnormal problem of plug ignition is caused, includes above-mentioned engine igniting system a second object of the present invention is to provide one kind
The engine of mounting device.
In order to reach above-mentioned first purpose, the invention provides the following technical scheme:
A kind of engine igniting system mounting device, including the spacer covered at outside spark plug and high-tension ignition harness, institute
The bottom end for stating spacer is provided with interconnecting piece for connecting with cylinder cap, is arranged with end part seal circle, the end part seal outside top
Circle includes the first sealing and the second sealing annular in shape, and first sealing is provided with sealing lip, the sealing lip
It is provided with the elastic component for sealing lip described in the radial compaction along the spacer outside；The top surface of second sealing and high pressure
The connecting end surface fitting for being connect with cylinder cover enclosure of igniting harness, bottom surface and in the cylinder cover enclosure harness hole and connecting pin
The opposite end face fitting in face.
Preferably, in above-mentioned engine igniting system mounting device, first sealing includes that longitudinal section is arc-shaped
Sealing lip and connect with the sealing lip and linear support portion, vertical cut is formed in the support portion and the sealing lip
Face is circular elastic component mounting hole.
Preferably, in above-mentioned engine igniting system mounting device, cylinder cover enclosure harness hole is stepped hole, the end
The longitudinal section of portion's sealing ring is L-shaped, it is described it is L-shaped on one side be first sealing, the L-shaped another side be described second
It sealing and is set between the step surface of the stepped hole and the connecting end surface.
Preferably, in above-mentioned engine igniting system mounting device, second sealing is used for and the connecting end surface
The surface of fitting is provided with multiple lug bosses.
Preferably, in above-mentioned engine igniting system mounting device, cyclic annular convex that the top of the spacer is provided with
Platform, cylinder cover enclosure harness hole are provided with for the harness hole positioning region with the annular locating lug boss clearance fit.
Preferably, in above-mentioned engine igniting system mounting device, the spacer includes sparking plug spacing sleeve and harness spacer,
The bottom end of the sparking plug spacing sleeve is provided with the interconnecting piece；The harness spacer is connect with the sparking plug spacing sleeve, and described
It is provided with cricoid sealed groove outside the top of sparking plug spacing sleeve, spacer sealing ring, the line are provided in the sealed groove
The inner wall of end of beam spacer is bonded with the spacer sealing ring.
Preferably, in above-mentioned engine igniting system mounting device, the top of the sparking plug spacing sleeve is provided with external screw thread,
The internal screw thread with external screw thread cooperation is provided on the inner wall of the harness spacer, the bottom side of the internal screw thread, which is provided with, to be used for
To the spacer thrust surface of sparking plug spacing sleeve limit, it is provided with accordingly and the spacer thrust surface on the sparking plug spacing sleeve
The thrust boss of cooperation.
Preferably, in above-mentioned engine igniting system mounting device, the spacer sealing ring is O-ring seal.
Preferably, in above-mentioned engine igniting system mounting device, the top of the harness spacer is provided with cross section and is
The hexagon-head of hexagon.
Engine igniting system mounting device provided by the invention includes spacer, end part seal circle and elastic component.Wherein, every
For set for being sheathed on outside spark plug and high-tension ignition harness, the bottom end of spacer is provided with the interconnecting piece for connecting with cylinder cap, every
End part seal circle is arranged with outside the top of set.End part seal circle includes that the first sealing and the second sealing, the two are annular in shape.
First sealing includes sealing lip, and sealing lip is paperwrapped in outside the top of spacer, is arranged with elastic component outside sealing lip, elastic component is used for
Along the axial compression sealing lip of spacer, so that sealing lip is bonded spacer outer wall to seal.Second sealing is set to high-tension ignition
Between harness and cylinder cover enclosure, an end face of the second sealing and the company for being connect with cylinder cover enclosure of high-tension ignition harness
Contact surface fits, another end face fits with end face opposite with connecting end surface in cylinder cover enclosure harness hole.
When using engine igniting system mounting device provided by the invention, by the setting of spacer, effectively by spark plug
Completely cut off with the coolant liquid of cylinder cover water jacket.Meanwhile the first sealing of end part seal circle is sheathed on spacer end to seal to spacer,
Cylinder cover enclosure inner engine oil is prevented to enter in spacer.Second sealing be set to high-tension ignition harness and cylinder cover enclosure harness hole it
Between, under high-tension ignition harness and cylinder cover enclosure assembled state, the second sealing is pressed in and realizes sealing therebetween.Pass through
The sealing surface of second sealing and high-pressure ignition wire interfascicular prevents the outer atmosphere of cylinder cover enclosure to enter spacer；Meanwhile second seals
Sealing surface between portion and cylinder cover enclosure harness hole, prevents outside oil leakage to cylinder cover enclosure.By way of end face seal, have
Effect reduces high-tension ignition harness and cylinder cover enclosure harness hole concentricity difference to the adverse effect of leakproofness.To sum up, pass through end
The setting of sealing ring and spacer, the contact for realizing the sealing around spark plug effectively to completely cut off it with medium guarantee spark plug
Normal ignition work, and then improve the reliability of engine.
In a preferred embodiment, engine igniting system mounting device provided by the invention, spacer include
Sparking plug spacing sleeve and harness spacer, and the top of sparking plug spacing sleeve is provided with cricoid sealed groove, is provided in sealed groove
Spacer sealing ring, the inner wall of end and spacer sealing ring of harness spacer cooperate.Namely in sparking plug spacing sleeve and harness spacer
Sealing ring is arranged in junction, realizes the sealing of the two, prevents machine oil from leaking from the faying face of sparking plug spacing sleeve and harness spacer, protects
Demonstrate,prove the sealing of spark plug.
In order to reach above-mentioned second purpose, the present invention also provides a kind of engine, which includes any of the above-described
Kind engine igniting system mounting device.Since above-mentioned engine igniting system mounting device has above-mentioned technique effect, tool
Corresponding technical effect should also be had by having the engine of the engine igniting system mounting device.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structure of specific embodiment working condition of engine igniting system mounting device provided by the invention
Schematic diagram；
Fig. 2 is partial structurtes enlarged diagram at Fig. 1 medial end portions sealing ring；
Fig. 3 is sparking plug spacing sleeve and harness spacer junction partial structurtes enlarged diagram in Fig. 1；
Fig. 4 is the structural schematic diagram of harness spacer in Fig. 1.
It is marked in attached drawing as follows:
End part seal circle 1, high-tension ignition harness 2, spark plug 3, cylinder cover enclosure 4, cylinder cap 5, harness spacer 6, spark plug every
Set 7, spacer sealing ring 8, the first sealing 11, the second sealing 12, elastic component 13, connecting end surface 21, harness hole positioning region 41,
Annular locating lug boss 61, internal screw thread 62, spacer thrust surface 63, hexagon-head 64, thrust boss 71, external screw thread 72.
Specific embodiment
The embodiment of the invention discloses a kind of engine igniting system mounting devices to be protected with effectively realizing that spark plug seals
Demonstrate,prove engine work.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 4 is please referred to, Fig. 1 is a kind of specific embodiment of engine igniting system mounting device provided by the invention
The structural schematic diagram of working condition；Fig. 2 is partial structurtes enlarged diagram at Fig. 1 medial end portions sealing ring；Fig. 3 is spark in Fig. 1
Fill in spacer and harness spacer junction partial structurtes enlarged diagram；Fig. 4 is the structural schematic diagram of harness spacer in Fig. 1.
In a specific embodiment, engine igniting system mounting device provided by the invention includes spacer, end
Sealing ring 1 and elastic component 13.
Wherein, spacer completely cuts off the coolant liquid of cylinder cover water jacket for being set in outside spark plug 3 and high-tension ignition harness 2.
The bottom end of spacer is provided with the interconnecting piece for connecting with cylinder cap 5, and end part seal circle 1 is arranged with outside the top of spacer.It needs
It is bright, herein and the top and bottom end that are mentioned below, only for distinguishing the relative positional relationship at both ends, and not absolute position
It sets, bottom end refers to each component close to one end of cylinder cap 5, then top refers to the other end opposite with bottom end.Spacer passes through interconnecting piece and cylinder
Lid 5 connects, and specific interconnecting piece can be threaded portion, then spacer is threadedly coupled with cylinder cap 5, by spacer screw-in cylinder cap 5 when installation
In corresponding screw thread, install more convenient.Certainly, the two can also be common dismountable solid using other as needed
Determine connection type connection.Spark plug 3 and high-tension ignition harness 2 are sheathed in spacer, and general spark plug 3 is connect with spacer, with
It is fixed convenient for spark plug 3, it is both specific can be to be threadedly coupled, when installation, screws in spark plug 3 in the corresponding screw thread of spacer
?.Certainly, the also mounting means of adjustable spark plug 3 as needed, but general pacified using being threadedly coupled with spacer
Dress.High-tension ignition harness 2 is connect with spark plug 3, for high-tension current to be transmitted to spark plug 3, to light a fire.
End part seal circle 1 includes the first sealing 11 and the second sealing 12, for being sealed to different end faces, the
Structure at 1 different location of one sealing 11 and 12 finger ends sealing ring of the second sealing, that is, the two are generally integral type
Structure.First sealing 11 includes sealing lip, and sealing lip is paperwrapped in outside the top of spacer, is arranged with elastic component 13 outside sealing lip,
Elastic component 13 is used for the axial compression sealing lip along spacer, so that sealing lip is bonded spacer outer wall to seal.Second sealing 12
It is set between high-tension ignition harness 2 and cylinder cover enclosure 4, the use of an end face and high-tension ignition harness 2 of the second sealing 12
It fits in the connecting end surface 21 being connect with cylinder cover enclosure 4, in another end face and cylinder cover enclosure harness hole and connecting end surface 21
Opposite end face fits.High-tension ignition harness 2 is provided with the end cap for connecting with cylinder cover enclosure 4, opens up on cylinder cover enclosure 4
There is cylinder cover enclosure harness hole.General high-tension ignition harness 2 penetrates in cylinder cover enclosure harness hole, end cap and 4 spiral shell of cylinder cover enclosure
It tethers and connects, high-tension ignition harness 2 is fixed.Harness hole inner wall includes the end face opposite with end cap, and the second sealing 12 is then set
It is placed in therebetween.
When using engine igniting system mounting device provided by the invention, by the setting of spacer, effectively by spark plug 3
Completely cut off with the coolant liquid of 5 water jacket of cylinder cap.Meanwhile the first sealing 11 of end part seal circle 1 is sheathed on spacer end to spacer
Sealing, prevents 4 inner engine oil of cylinder cover enclosure to enter in spacer.Second sealing 12 is set to high-tension ignition harness 2 and cylinder head cover
Between shell harness hole, under high-tension ignition harness 2 and 4 assembled state of cylinder cover enclosure, the second sealing 12 is pressed in the two
Between realize sealing.By the sealing surface between the second sealing 12 and high-tension ignition harness 2, prevent the outer atmosphere of cylinder cover enclosure 4 into
Enter spacer；Meanwhile the second sealing surface between sealing 12 and cylinder cover enclosure harness hole, prevent oil leakage to cylinder cover enclosure 4
Outside.To sum up, by the setting of end part seal circle 1 and spacer, the sealing around spark plug 3 is realized effectively to completely cut off itself and medium
Contact, guarantee the normal ignition work of spark plug 3, and then improve the reliability of engine.
Specifically, the first sealing 11 includes the longitudinal section sealing lip being arc-shaped and the linear branch connecting with sealing lip
It is circular elastic component mounting hole that longitudinal section is formed in support part, support portion and sealing lip.It should be noted that longitudinal section herein
Refer to along the section parallel with the axis of end part seal circle 1.One end of sealing lip is connect with support portion, in the supporting role of support portion
Down convenient for the placement of elastic component 13, the intensity of the first sealing 11 of raising, opening is typically provided between the other end and support portion,
In order to the installation of elastic component 13.Elastic component 13 mostly uses spring, and spring is installed in circular elastic component mounting hole, is passed through
The effect of spring compresses sealing lip to realize sealing to spacer.By setting arc-shaped for sealing lip, in elastic component 13
Acting on lower sealing lip can extend to increase the contact area with spacer, improve leakproofness.Certainly, elastic component 13 can also use
Other conventional elastic materials or structure for being capable of providing elastic-restoring force.
Further, cylinder cover enclosure harness hole is stepped hole.The inner wall in namely cylinder cover enclosure harness hole includes step surface,
The connecting end surface 21 of step surface and high-tension ignition harness 2 is opposite, and then in high-tension ignition harness 2 and 4 assembled state of cylinder cover enclosure
Under, the second sealing 12 is pressed between step surface and connecting end surface 21, that is, high-tension ignition harness 2 and cylinder cover enclosure line
Between beam hole.The installation in order to end part seal circle is arranged such.
Specifically, the longitudinal section of end part seal circle 1 is L-shaped, L-shaped is on one side the first sealing 11, and L-shaped another side is
It second sealing 12 and is set between the step surface of stepped hole and connecting end surface 21.End part seal circle 1 is L-shaped, that is to say
One sealing 11 and the second sealing 12 are perpendicular.It can be right angle between specific first sealing 11 and the second sealing 12
Transition may be set to be as needed through round-corner transition, be not especially limited herein.So set, being convenient for end part seal
The installation of circle 1, while spacer is sealed from perpendicular both direction, sealing effect has been effectively ensured.Certainly, in cylinder
In the case that housing shell harness hole is stepped hole, the longitudinal section of end part seal circle can also be with the other shapes such as arc-shaped.According to need
It wants, it is also contemplated that it is convex that second sealing 12 is set to sealing by the way that annular seal boss is arranged on high-tension ignition harness 2
It is sealed between platform and cylinder cover enclosure harness hole inner wall, but structure is complex.
Further, the surface that the second sealing 12 is used to be bonded with connecting end surface 21 is provided with multiple lug bosses.It is logical
The setting of lug boss is crossed, in the assembled condition, the second sealing 12 is extruded, and lug boss extends and then increases the second sealing
12 with the contact area of connecting end surface 21, to improve sealing effect.The number and size of specific protrusion can be according to the second sealings
The width and material in portion 12 etc. are configured, and are not especially limited herein.
For the ease of the positioning and installation of spacer, the annular locating lug boss 61 that the top of spacer is provided with, cylinder cover enclosure line
Beam hole is provided with for the harness hole positioning region 41 with 61 clearance fit of annular locating lug boss.Namely it is arranged on the top of spacer
One loop diameter is greater than the positioning region of spacer diameter, and the harness hole positioning of clearance fit therewith is arranged in corresponding cylinder cover enclosure harness hole
It is convenient for the accurate installation of spacer by the positioning action of positioning region in spacer installation process in portion 41.Specifically, cyclic annular positioning
Chamfering can be set in the top of boss 61.In general, annular locating lug boss 61 is set to the bottom end of end part seal circle 1, when installation
First spacer is fixed, then end part seal circle 1 is assembled.
On the basis of the various embodiments described above, spacer includes sparking plug spacing sleeve 7 and harness spacer 6, the bottom of sparking plug spacing sleeve 7
End is provided with interconnecting piece；Harness spacer 6 is connect with sparking plug spacing sleeve 7, and the top of sparking plug spacing sleeve 7 is provided with cricoid sealing
Groove is provided with spacer sealing ring 8 in sealed groove, and the inner wall of end of harness spacer 6 is bonded with spacer sealing ring 8.Namely
Split type spacer is set by spacer, and then convenient for the installation of spacer and spark plug 3, high-tension ignition harness 2, certainly, spark plug
Spacer 7 should be coaxially disposed with harness spacer 6.Interconnecting piece is set on sparking plug spacing sleeve 7, and the form of specific interconnecting piece can refer to
The related statement of embodiment is stated, details are not described herein again.Harness spacer 6 is connect with sparking plug spacing sleeve 7, and connection herein both includes two
Person's is directly connected to, and also includes that the two is indirectly connected with by connecting realization with other structures.It is arranged outside the top of sparking plug spacing sleeve 7
There is a circle sealed groove, spacer sealing ring 8 is set in sealed groove, harness spacer 6 is sheathed on outside sparking plug spacing sleeve 7, so that
The inner wall and spacer sealing ring 8 of harness spacer 6 fit closely realization sealing, prevent machine oil from sparking plug spacing sleeve 7 and harness spacer 6
Faying face leakage, guarantee spark plug 3 sealing.
As needed, harness spacer 6 also can be set to be sheathed in sparking plug spacing sleeve 7, accordingly at the end of harness spacer 6
Cricoid sealed groove is set outside portion, spacer sealing ring 8 is set in sealed groove, the inner wall of sparking plug spacing sleeve 7 can be with spacer
Sealing ring 8 is bonded.Split type structure namely is being set by spacer, and in the junction of sparking plug spacing sleeve 7 and real spacer
Spacer sealing ring 8 is set.
It further, is the connection and positioning convenient for sparking plug spacing sleeve 7 and harness spacer 6, the top of sparking plug spacing sleeve 7 is set
It is equipped with external screw thread 72, the internal screw thread 62 cooperated with external screw thread 72 is provided on the inner wall of harness spacer 6.Namely the two passes through spiral shell
Line connection, the mode itself that can also be connected using other conventional modes that are fixedly connected as needed certainly, but be threadedly coupled
Certain sealing effect can be played.The bottom side of internal screw thread 62 is provided with the spacer thrust surface 63 for limiting to sparking plug spacing sleeve 7,
Bottom side herein refers to the side on harness spacer 6 close to bottom end.It is provided with accordingly on sparking plug spacing sleeve 7 and spacer thrust surface 63
The thrust boss 71 of cooperation.Certainly, those skilled in the art expect that spacer thrust surface 63 and the setting of thrust boss 71 are answered naturally
It can guarantee the normal assembly of sparking plug spacing sleeve 7 Yu harness spacer 6.And then when installing, harness spacer 6 is screwed in into sparking plug spacing sleeve
Outside 7, until spacer thrust surface 63 offsets with the thrust boss 71 on sparking plug spacing sleeve 7.Specifically, the top of sparking plug spacing sleeve 7
External screw thread 72 and thrust boss 71 for cooperating with harness spacer 6 can be set gradually from top to bottom end direction, sealed recessed
Slot can be opened on thrust boss 71.And then the top surface of thrust boss 71 offsets with spacer thrust surface 63 to limit, spacer is close
Seal 8 is bonded with harness spacer 6 to seal.Certainly, as needed, sealed groove can also be opened in screw thread and boss it
Between, but structure is complex, is unfavorable for processing.Meanwhile when spacer is split type structure, annular locating lug boss 61 is set accordingly
It is placed in the top of harness spacer 6.
Specifically, spacer sealing ring 8 is O-ring seal, that is, longitudinal section is circular sealing ring.Pass through O-shaped sealing
Circle cooperates with 6 inner wall cylindrical surface of harness spacer, realizes the sealing of sparking plug spacing sleeve 7 and harness spacer 6, and sealing effect is good.Certainly,
It also can choose other conventional sealing rings according to the actual situation.
For the ease of the installation of harness spacer 6, top is provided with the hexagon-head 64 that cross section is hexagon, herein
Cross section refers to the section perpendicular to 6 axis of harness spacer.It in turn, can when harness spacer 6 is threadedly coupled with sparking plug spacing sleeve 7
Harness spacer 6 is fastened with blocking hexagon-head 64 by spanner, facilitates being fastenedly connected for the two.Specifically, in harness
In the case that 6 top of spacer is provided with annular locating lug boss 61, hexagon-head 64 be can be set in the bottom of annular locating lug boss 61
Portion, end part seal circle are installed on the top of hexagon-head 64.
Using above-mentioned engine igniting system mounting device, sparking plug spacing sleeve 7 is first installed in cylinder cap 5 by when assembly,
It can specifically screw in 5 respective threaded of cylinder cap, and spark plug 3 is screwed in 7 respective threaded of sparking plug spacing sleeve.Sparking plug spacing sleeve 7
Top is provided with spacer sealing ring 8, and external screw thread 72 is provided at the top of spacer sealing ring 8, and harness spacer 6 screws in sparking plug spacing sleeve 7
Outside, until spacer thrust surface 63 offsets with thrust boss 71.Cylinder cover enclosure 4 is sheathed on outside harness spacer 6 from top, passes through ring-type
End part seal circle 1 is then sheathed on outside harness spacer 6 by the position-limiting action of positive stop lug boss with positioning.High-tension ignition harness 2 is packed into
In harness spacer 6 and sparking plug spacing sleeve 7, bottom contact sparking plug 3, top is connect with cylinder cover enclosure 4, and by end part seal circle 1
The second sealing 12 compress realize sealing.
The engine igniting system mounting device provided in based on the above embodiment, the present invention also provides one kind to start
Machine, the engine include any one engine igniting system mounting device in above-described embodiment.Since the engine uses
Engine igniting system mounting device in above-described embodiment, so the beneficial effect of the engine please refers to above-described embodiment.
Specifically, above-mentioned engine can be natural gas engine, i.e., above-mentioned engine igniting system mounting device can preferably be used
In natural gas engine.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.And it is specific for the first sealing
The restriction of structure, end part seal circle be L-shaped, the increase or restriction of lug boss and annular locating lug boss and harness hole positioning region,
It can individually increase or limit therein one or more, the new technical solution thus formed also should belong to the protection model of the application
It encloses.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of engine igniting system mounting device, which is characterized in that including covering at outside spark plug and high-tension ignition harness
Spacer, the bottom end of the spacer is provided with the interconnecting piece for connecting with cylinder cap, end part seal circle is arranged with outside top, described
End part seal circle includes the first sealing and the second sealing annular in shape, and first sealing is provided with sealing lip, institute
State the elastic component being provided with outside sealing lip for sealing lip described in the radial compaction along the spacer；The top of second sealing
The connecting end surface for connecting with cylinder cover enclosure of face and high-tension ignition harness is bonded, in bottom surface and cylinder cover enclosure harness hole and institute
The opposite end face fitting of connecting end surface is stated, cylinder cover enclosure harness hole is stepped hole, and the longitudinal section of the end part seal circle is in L
Shape, it is described it is L-shaped be on one side first sealing, the L-shaped another side is second sealing and is set to described
Between the step surface of stepped hole and the connecting end surface.
2. engine igniting system mounting device according to claim 1, which is characterized in that first sealing includes
Sealing lip that longitudinal section is arc-shaped and connect with the sealing lip and linear support portion, the support portion with it is described close
Sealing in lip and forming longitudinal section is circular elastic component mounting hole.
3. engine igniting system mounting device according to claim 1, which is characterized in that second sealing is used for
The surface being bonded with the connecting end surface is provided with multiple lug bosses.
4. engine igniting system mounting device according to claim 1, which is characterized in that the top of the spacer is arranged
There is annular locating lug boss, cylinder cover enclosure harness hole is provided with for the harness hole with the annular locating lug boss clearance fit
Positioning region.
5. engine igniting system mounting device according to claim 1-4, which is characterized in that the spacer packet
Sparking plug spacing sleeve and harness spacer are included, the bottom end of the sparking plug spacing sleeve is provided with the interconnecting piece；The harness spacer and institute
Sparking plug spacing sleeve connection is stated, and is provided with cricoid sealed groove outside the top of the sparking plug spacing sleeve, in the sealed groove
It is provided with spacer sealing ring, the inner wall of end of the harness spacer is bonded with the spacer sealing ring.
6. engine igniting system mounting device according to claim 5, which is characterized in that the top of the sparking plug spacing sleeve
End is provided with external screw thread, and the internal screw thread with external screw thread cooperation, the internal screw thread are provided on the inner wall of the harness spacer
Bottom side be provided with the spacer thrust surface for limiting to the sparking plug spacing sleeve, be provided with accordingly on the sparking plug spacing sleeve
With the thrust boss of spacer thrust surface cooperation.
7. engine igniting system mounting device according to claim 6, which is characterized in that the spacer sealing ring is O
Type sealing ring.
8. engine igniting system mounting device according to claim 5, which is characterized in that the top of the harness spacer
It is provided with the hexagon-head that cross section is hexagon.
9. a kind of engine, which is characterized in that including the described in any item engine igniting system installation dresses of such as claim 1-8
It sets.
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| CN201610204028.6A CN105715443B (en) | 2016-03-31 | 2016-03-31 | Engine igniting system mounting device and engine with the device |
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| CN201610204028.6A CN105715443B (en) | 2016-03-31 | 2016-03-31 | Engine igniting system mounting device and engine with the device |
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| CN105715443A CN105715443A (en) | 2016-06-29 |
| CN105715443B true CN105715443B (en) | 2019-01-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107956589B (en) * | 2017-12-28 | 2021-05-18 | 潍柴动力股份有限公司 | Engine cylinder head and engine |
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|---|---|---|---|---|
| JP2000145601A (en) * | 1998-11-05 | 2000-05-26 | Yanmar Diesel Engine Co Ltd | Water leakage detection device for o-ring for plug sleeve |
| CN1993577A (en) * | 2005-01-21 | 2007-07-04 | Nok株式会社 | Sealing cushion |
| CN205618284U (en) * | 2016-03-31 | 2016-10-05 | 安徽华菱汽车有限公司 | Engine ignition system installation device and have device's engine |
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| JPH02230964A (en) * | 1989-03-01 | 1990-09-13 | Aisan Ind Co Ltd | Ignition device for internal combustion engine |
| KR101048124B1 (en) * | 2008-06-16 | 2011-07-08 | 기아자동차주식회사 | Spark Plug Tube Unit for Engine |
| CN201554568U (en) * | 2009-11-06 | 2010-08-18 | 东莞市康达机电工程有限公司 | Cylinder lid for gas engine |
| CN203707565U (en) * | 2013-12-25 | 2014-07-09 | 淄博柴油机总公司 | Split type spark plug ignition assembly of gas machine and spark plug installation sheath |
| CN104500310A (en) * | 2014-12-25 | 2015-04-08 | 重庆科克发动机技术有限公司 | Sealing structure for ignition plug |
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2016
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Patent Citations (3)
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|---|---|---|---|---|
| JP2000145601A (en) * | 1998-11-05 | 2000-05-26 | Yanmar Diesel Engine Co Ltd | Water leakage detection device for o-ring for plug sleeve |
| CN1993577A (en) * | 2005-01-21 | 2007-07-04 | Nok株式会社 | Sealing cushion |
| CN205618284U (en) * | 2016-03-31 | 2016-10-05 | 安徽华菱汽车有限公司 | Engine ignition system installation device and have device's engine |
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Effective date of registration: 20231111 Address after: 243071 No. 359 Huxinan Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Hanma Engine Co.,Ltd. Address before: No.359, huxinan Road, Maanshan economic and Technological Development Zone, Anhui Province 243061 Patentee before: ANHUI HUALING AUTOMOBILE Co.,Ltd. |
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