CN108661835A - Oil sprayer bushing - Google Patents
Oil sprayer bushing Download PDFInfo
- Publication number
- CN108661835A CN108661835A CN201810634187.9A CN201810634187A CN108661835A CN 108661835 A CN108661835 A CN 108661835A CN 201810634187 A CN201810634187 A CN 201810634187A CN 108661835 A CN108661835 A CN 108661835A
- Authority
- CN
- China
- Prior art keywords
- bushing
- external
- oil sprayer
- atomizer
- inlet channel
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of oil sprayer bushings, including bush body, bush body includes the lower bushing of the upper bushing and corresponding atomizer setting to be cooled of corresponding fuel injector setting to be cooled, and upper bushing and lower bushing are structure as a whole, and the thickness of lower bushing is less than the thickness of upper bushing；It is set with external bushing on lower bushing, the lower interior water cavity formed between bushing and external bushing for cooling down atomizer offers the inlet channel and water outlet being connected to cooling water cavity on external bushing.Atomizer can be surrounded substantially by interior water cavity in the present invention, due to increasing external bushing, it is ensured that the integral strength of bush body, herein under the premise of the size of lower bushing and connecting plate can improve cooling effect with very little, to improve heat transfer coefficient.The present invention can reduce the thermic load of atomizer, control the maximum temperature of oil nozzle, make the control of fuel injector oil nozzle in a certain range, to ensure the reliability of diesel engine work.
Description
Technical field
The present invention relates to a kind of oil sprayer bushings.
Background technology
Oil sprayer bushing is mounted in cylinder head, is formed between external and cylinder head for cooling water cavity, fuel injector lining
Set is internal to install fuel injector, and fuel injector lower end is equipped with for controlling fuel-injected atomizer.Diesel engines at present reinforcing degree
Higher and higher, the thermic load of fuel injector is also increasing.Requirement of the fuel injector oil nozzle to temperature range is more harsh, and general 100
More degrees Celsius to 200 or so.
As shown in Figure 1, oil sprayer bushing is the thin-walled revolution workpiece that steel alloy makes at present, oil sprayer bushing lower end passed through
Be full of cooperation or be threadedly coupled be assemblied in cylinder cap, upper end and cylinder cap clearance fit, pass through O type circles seal water cavity.Fuel injector assembles
Inside oil sprayer bushing.Fuel injector oil nozzle and combustion chamber contact, thermic load temperature is very high, with present diesel engine strengthening degree
Continuous to improve, atomizer thermic load can be higher and higher；Cylinder need to be connected at fuel injector oil nozzle since oil sprayer bushing corresponds to
It covers for being integrally supported to bushing, therefore water cavity can not be set at corresponding fuel injector oil nozzle, the water cavity of oil sprayer bushing exists
Middle and upper part, heat transfer coefficient is relatively low, and cooling effect is bad, and the high diesel engine of reinforcing degree is possible to cause because of cooling bad
Injector-Fault, such as needle-valve clamping stagnation, carbon distribution etc. influences the normal work of diesel engine.
Invention content
The technical problem to be solved in the present invention is to provide a kind of thermic loads that can be reduced at atomizer, control oil nozzle most
The oil sprayer bushing of high-temperature.
In order to solve the above technical problems, the present invention includes the lining that can be sleeved on fuel injector to be cooled and atomizer to be cooled
Ontology is covered, cooling water cavity is formed between the bush body and cylinder head to be installed, it is characterized in that the bush body includes
The lower bushing of the upper bushing of corresponding fuel injector setting to be cooled and corresponding atomizer setting to be cooled, the upper bushing and lower bushing
It is structure as a whole, the thickness of the lower bushing is less than the thickness of upper bushing；External bushing, the lower lining are set on the lower bushing
Cover and form interior water cavity for cooling down atomizer between external bushing, offered on the external bushing be connected to cooling water cavity into
Water channel and water outlet.
The inlet channel ecto-entad tilts down setting.
The inlet channel is multiple, and multiple inlet channels are uniformly arranged on the lower part of external bushing；The water outlet be it is multiple, it is more
A water outlet is uniformly arranged on the top of external bushing.
The quantity of the inlet channel is more than the quantity of water outlet, and the aperture of the inlet channel is less than the aperture of water outlet.
Be staggered arrangement above and below the inlet channel and water outlet.
The outer lining set upper side and upper bushing sealing are affixed, and external bushing lower end inner surface is equipped with connection in a ring
Plate, the connecting plate inner surface are tightly connected with lower bushing lower end outer surface.
The thickness of the connecting plate is 4mm.
In upper bushing, the outer surface of the external bushing lower part is equipped with for being screwed on cylinder the external bushing upper weld
The external screw thread covered.
The thickness of the lower bushing is 2mm.
With the above structure, atomizer can be surrounded substantially by interior water cavity in the present invention, can due to increasing external bushing
To ensure the integral strength of bush body, herein under the premise of the size of lower bushing and connecting plate can be passed with very little to improve
Hot coefficient, improves cooling effect.The present invention can reduce the thermic load of atomizer, control the maximum temperature of oil nozzle, make oil spout
Device oil nozzle controls in a certain range, to ensure the reliability of diesel engine work.
Description of the drawings
Below in conjunction with the accompanying drawings and specific implementation mode invention is further described in detail：
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the present invention；
Fig. 3 is the structural schematic diagram amplified at A in Fig. 2；
Fig. 4 is structural schematic diagrams of the Fig. 2 along line B-B section view；
Fig. 5 is structural schematic diagrams of the Fig. 4 along line C-C section view；
Fig. 6 is the structural schematic diagram of the present invention and cylinder head assembly；
Fig. 7 is the structural schematic diagram amplified at D in Fig. 6.
Specific implementation mode
As shown in Figures 2 to 7, oil sprayer bushing includes the lining that can be sleeved on fuel injector to be cooled and atomizer to be cooled
Ontology is covered, cooling water cavity is formed between bush body and cylinder head to be installed.Bush body includes corresponding fuel injector to be cooled
The lower bushing 8 of the upper bushing 9 of setting and corresponding atomizer setting to be cooled, upper bushing 9 and lower bushing 8 are integrated casting and forming,
The thickness of lower bushing 8 is less than the thickness of upper bushing 9, and the thickness minimum of lower bushing 8 can reach 2mm in of the invention；It is covered on lower bushing 8
Equipped with external bushing 7, interior water cavity for cooling down atomizer is formed between lower bushing 8 and external bushing 7, offered on external bushing 7 with
The inlet channel 5 and water outlet 6,5 ecto-entad of inlet channel of cooling water cavity connection tilt down setting, and interior water is flowed into convenient for cooling water
Chamber.Inlet channel 5 is multiple, and multiple inlet channels 5 are uniformly arranged on the lower part of external bushing 7；Water outlet 6 is multiple, multiple water outlets 6
It is uniformly arranged on the top of external bushing 7.The quantity of inlet channel 5 is more than the quantity of water outlet 6, and the aperture of inlet channel 5 is less than water outlet
The aperture in road 6.Inlet channel 5 and about 6 water outlet are staggered arrangement, and water outlet 6 is horizontally disposed.The disengaging water channel 6 of such structure, can
Cooling water remains in a standstill in interior water cavity, improves cooling effect.
7 upper end of external bushing seals affixed with upper bushing 9, and 7 lower end inner surface of external bushing is equipped with connecting plate 4 in a ring, even
4 inner surface of fishplate bar is tightly connected with 8 lower end outer surface of lower bushing.In the present embodiment, 7 upper weld of external bushing in upper bushing 9,
The outer surface of 7 lower part of external bushing is equipped with the external screw thread for being screwed in cylinder head.The thickness minimum of connecting plate 4 can reach 4mm,
Keep interior water cavity area coverage larger, improves the cooling effect to atomizer.
After the present invention is assembled with cylinder head 3, the cooling water in cylinder head in cooling water channel enters interior water cavity from inlet channel, so
Cooling water cavity is flowed into from water outlet afterwards, realizes the cooling to atomizer.The present invention on the basis of existing technology, increases outer lining
Interior water cavity is arranged in set 7 between external bushing 7 and lower bushing 8, non-refrigerated at atomizer in the prior art to solve the problems, such as.This
Atomizer can be surrounded substantially by interior water cavity in invention, due to increasing external bushing 7, it is ensured that the entirety of bush body is strong
Degree, herein under the premise of the size of lower bushing 8 and connecting plate 4 can improve cooling effect with very little, to improve heat transfer coefficient
Fruit.The present invention can reduce the thermic load of atomizer, control the maximum temperature of oil nozzle, make the control of fuel injector oil nozzle in a certain range
It is interior, to ensure the reliability of diesel engine work.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention.Previous embodiment is to the present invention
It is described in detail, it for those skilled in the art, still can be to the skill recorded in foregoing embodiments
Art scheme is modified or equivalent replacement of some of the technical features.In every case in the inventive concept range of the present invention
Within, any modification, equivalent substitution, improvement and etc. done are all included in the scope of protection of the present invention.
Claims (9)
1. a kind of oil sprayer bushing, including the bush body that can be sleeved on fuel injector to be cooled and atomizer to be cooled, it is described
Cooling water cavity is formed between bush body and cylinder head to be installed, it is characterized in that the bush body includes corresponding spray to be cooled
The lower bushing of the upper bushing of oily device setting and corresponding atomizer setting to be cooled（8）, the upper bushing（9）With lower bushing（8）For
Integral structure, the lower bushing（8）Thickness be less than upper bushing（9）Thickness；The lower bushing（8）On be set with external bushing
（7）, the lower bushing（8）With external bushing（7）Between form interior water cavity for cooling down atomizer, the external bushing（7）On open
Equipped with the inlet channel being connected to cooling water cavity（5）And water outlet（6）.
2. oil sprayer bushing according to claim 1, it is characterized in that the inlet channel（5）Ecto-entad, which tilts down, to be set
It sets.
3. oil sprayer bushing according to claim 1, it is characterized in that the inlet channel（5）To be multiple, multiple inlet channels（5）
It is uniformly arranged on external bushing（7）Lower part；The water outlet（6）To be multiple, multiple water outlets（6）It is uniformly arranged on external bushing
（7）Top.
4. oil sprayer bushing according to claim 3, it is characterized in that the inlet channel（5）Quantity be more than water outlet（6）
Quantity, the inlet channel（5）Aperture be less than water outlet（6）Aperture.
5. oil sprayer bushing according to claim 3, it is characterized in that the inlet channel（5）And water outlet（6）It is staggered up and down
Arrangement.
6. oil sprayer bushing according to claim 1, it is characterized in that the external bushing（7）Upper end and upper bushing（9）Sealing
It is affixed, the external bushing（7）Lower end inner surface is equipped with connecting plate in a ring（4）, the connecting plate inner surface and lower bushing（8）
Lower end outer surface is tightly connected.
7. oil sprayer bushing according to claim 6, it is characterized in that the thickness of the connecting plate is 4mm.
8. oil sprayer bushing according to claim 6, it is characterized in that the external bushing（7）Upper weld is in upper bushing（9）
On, the external bushing（7）The outer surface of lower part is equipped with the external screw thread for being screwed in cylinder head.
9. oil sprayer bushing according to any one of claim 1 to 8, it is characterized in that the lower bushing（8）Thickness be
2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634187.9A CN108661835A (en) | 2018-06-20 | 2018-06-20 | Oil sprayer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634187.9A CN108661835A (en) | 2018-06-20 | 2018-06-20 | Oil sprayer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661835A true CN108661835A (en) | 2018-10-16 |
Family
ID=63776065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810634187.9A Withdrawn CN108661835A (en) | 2018-06-20 | 2018-06-20 | Oil sprayer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661835A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB358779A (en) * | 1929-12-24 | 1931-10-15 | Heinrich Dinner | Improvements in or relating to fuel injection devices for internal combustion engines |
| CN1104550C (en) * | 1996-12-02 | 2003-04-02 | 瓦特西拉瑞士有限公司 | Cooling element and injection nozzle with cooling element for reciprocating piston combustion engine |
| CN202756145U (en) * | 2012-08-23 | 2013-02-27 | 浙江福仕德燃油喷射系统有限公司 | Diesel engine injector nozzle matching part |
| CN103201471A (en) * | 2010-10-14 | 2013-07-10 | 依米泰克排放技术有限公司 | Mounting for an injector |
| CN204729206U (en) * | 2015-07-02 | 2015-10-28 | 马鞍山市增润机械制造有限公司 | A kind of oil sprayer conduit |
| CN205478051U (en) * | 2016-01-13 | 2016-08-17 | 潍柴动力股份有限公司 | Sprayer bush that screw thread rubber coating is sealed |
-
2018
- 2018-06-20 CN CN201810634187.9A patent/CN108661835A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB358779A (en) * | 1929-12-24 | 1931-10-15 | Heinrich Dinner | Improvements in or relating to fuel injection devices for internal combustion engines |
| CN1104550C (en) * | 1996-12-02 | 2003-04-02 | 瓦特西拉瑞士有限公司 | Cooling element and injection nozzle with cooling element for reciprocating piston combustion engine |
| CN103201471A (en) * | 2010-10-14 | 2013-07-10 | 依米泰克排放技术有限公司 | Mounting for an injector |
| CN202756145U (en) * | 2012-08-23 | 2013-02-27 | 浙江福仕德燃油喷射系统有限公司 | Diesel engine injector nozzle matching part |
| CN204729206U (en) * | 2015-07-02 | 2015-10-28 | 马鞍山市增润机械制造有限公司 | A kind of oil sprayer conduit |
| CN205478051U (en) * | 2016-01-13 | 2016-08-17 | 潍柴动力股份有限公司 | Sprayer bush that screw thread rubber coating is sealed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |