CN104533588A - Piston cooling nozzle - Google Patents
Piston cooling nozzle Download PDFInfo
- Publication number
- CN104533588A CN104533588A CN201410823298.6A CN201410823298A CN104533588A CN 104533588 A CN104533588 A CN 104533588A CN 201410823298 A CN201410823298 A CN 201410823298A CN 104533588 A CN104533588 A CN 104533588A
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- CN
- China
- Prior art keywords
- oil
- cavity
- piston cooling
- cooling nozzle
- control valve
- 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.)
- Pending
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Classifications
-
- 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
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of internal combustion engine accessory devices, and particularly relates to a piston cooling nozzle. The piston cooling nozzle comprises a control valve and an oil jet tube, wherein the control valve comprises a valve body, a steel ball, a spring and an orifice plug; the valve body is provided with an oil inlet hole, an oil outlet hole and a cavity; the steel ball and the spring are located in the cavity; the spring compresses the steel ball at the position where the oil inlet hole and the cavity are adjacently connected, one end of the oil jet tube is installed on the oil outlet hole and communicated with the cavity of the control valve, a positioning hole is formed in the position, at the other end of the cavity, of the valve body, and the orifice plug is fixedly installed in the positioning hole. The piston cooling nozzle is simple in structure, the number of parts is reduced, the possibility of engine oil leakage is reduced, and reliability of the piston cooling nozzle is improved.
Description
Technical field
The invention belongs to internal combustion engine part device technique field, particularly a kind of piston cooling nozzle.
Background technique
In veh icle diesel technologies field, high-power, high performance diesel engine heat load is large, and motor is when high loaded process, and chamber temperature is very high, and piston easily occurs superheating phenomenon.Exactly piston cooling nozzle is designed to the heat radiation way of engine piston, strengthens the cooling to piston.Establish the logical oil draining bolt of control valve in the piston cooling nozzle employing of available engine, combine with locating stud, sleeve and spray bar, be arranged on bottom cylinder block, get oil by the main oil gallery in cylinder block.The structure of piston cooling nozzle is welded in the perforate of sleeve lateral wall by spray bar, also with locating stud on sleeve, to locate the oil spout direction of spray bar, piston cooling nozzle is fixed on the main oil gallery of cylinder block through sleeve by logical oil draining bolt, and spray bar oil pocket is communicated with cylinder block main oil gallery by barrel bore, logical oil draining bolt inner chamber; Its principle is that logical oil draining bolt and cylinder block main oil gallery mounting hole are threaded connection, the sleeve welded is positioned at desired location by locating stud, tighten logical oil draining bolt two of sleeve end faces are compressed with the supporting surface of logical oil draining bolt, cylinder block main oil gallery mounting plane respectively, thus make logical oil draining bolt supporting surface, cylinder block main oil gallery mounting plane and barrel bore form a high pressure shoe cream room, logical oil draining bolt internal cavities is provided with control valve, and the machine oil in main oil gallery sprays to piston by spray bar after entering high pressure shoe cream room by the control valve of logical oil draining bolt inside.The piston cooling nozzle link of this structure is many, complicated integral structure, for ensureing sealing effect between two end faces of sleeve and logical oil draining bolt supporting surface, cylinder block main oil gallery mounting plane, not occurring oil leakage phenomenon, high to the requirement on machining accuracy of above each junction surface, increase processing cost; Secondly, the orifice plug of control valve medi-spring location also adopts with logical oil draining bolt internal cavities and is threaded, and accurately locating orifice plug position difficulty comparatively greatly, causing the conformity difference of control valve cracking pressure larger when installing orifice plug; Piston cooling nozzle and cylinder block adopt being threaded of logical oil draining bolt in addition, cylinder block is installed nozzle and causes cylinder block to scrap easy stripped thread during tight logical oil draining bolt.
Summary of the invention
The object of the present invention is to provide that the simple union piece of a kind of structure is few, control valve cracking pressure is stablized, piston cooling nozzle that the connection of control valve and cylinder block is more simple and reliable, effectively overcome the technical problem of above-mentioned existence.
Technical solution of the present invention is as follows:
A kind of piston cooling nozzle, comprise control valve 1, spray bar 10, described control valve 1 comprises valve body 2, steel ball 3, spring 4, orifice plug 5, described valve body 2 is provided with oil inlet hole 6, oil outlet 9, cavity 7, described steel ball 3, spring 4 is positioned at cavity 7, spring 4 one end is under the positioning supports effect of orifice plug 5, steel ball 3 is pressed on oil inlet hole 6 joint adjacent with cavity 7 by the other end, one end of described spray bar 10 is arranged on oil outlet 9, be connected with described cavity 7, at the other end of described cavity 7, valve body 2 is also provided with positioning hole 8, described orifice plug 5 is fixedly mounted in positioning hole 8.
In such scheme, positioning hole 8 secures the mounting point of orifice plug, makes spring 4 head on steel ball 3 with the pressure of setting and is pressed on oil inlet hole 6 joint adjacent with cavity 7, and pressure of this setting is exactly open or the main oil gallery oil pressure force value of cutting-off controlling valve 1.
A modification of the present invention, control valve 1 is fixedly mounted on the unthreaded hole of cylinder block main oil gallery, and oil inlet hole 6 communicates with the main oil gallery inner chamber of cylinder block.
Another kind of the present invention improves, and control valve 1 is arranged on the unthreaded hole of cylinder block main oil gallery with interference fit.
Another kind of the present invention improves, and oil inlet hole 6 is the conical surface with the joint of cavity 7.
Inventive piston cooling jet, during installation:
Steel ball 3 and spring 4 are loaded successively the cavity 7 of valve body 2, orifice plug 5 is fixedly mounted on positioning hole 8, can make spring 4, with the pressure of setting, steel ball 3 is pressed on oil inlet hole 6 joint adjacent with cavity 7.
Determined the angle of swing of spray bar 10 by computer oil spurts direction, spray bar 10 is fixedly mounted on oil outlet 9.
One end cylindrical of oil inlet hole 6 on valve body 2, the unthreaded hole reserved with cylinder block main oil gallery is interference fit, after being located, is fixedly mounted on described unthreaded hole by inventive piston cooling jet by positioning tool.
In the technical program, NM content, is prior art, does not repeat them here.
Beneficial effect: inventive piston cooling jet, one end of spray bar 10 is directly installed on oil outlet 9, structure is simpler, not only reduce the amount of parts of connection, take up room little, and avoid the possibility that in prior art, machine oil is revealed from each part junction surface, improve the reliability of piston cooling nozzle; Orifice plug 5 is fixedly mounted in positioning hole 8, make spring 4, with stable setting pressure, steel ball 3 is pressed on oil inlet hole 6 joint adjacent with cavity 7, solve orifice plug of the prior art because adopting thread connecting mode, accurately locate orifice plug position difficulty when mounted larger, cause the problem that the conformity difference of control valve cracking pressure is larger, thus the cracking pressure of control valve 1 is stablized, also avoid the problem that the contingent stripped thread that is threaded causes affecting injection pressure value simultaneously, oil spout reliability can be guaranteed; The Placement of this piston cooling nozzle and cylinder block adopts interference fit, install simple and convenient, overcome in prior art and adopt logical oil draining bolt Placement, in the problem that installation causes cylinder block to scrap stripped thread easy time tight, and effectively can prevent the generation of oil leakage phenomenon.
In addition, the present invention reduces volume and the weight of piston cooling nozzle from structure, and compact structure is attractive in appearance, procedure is simple, save manufacturing cost, and reduce the possibility that machine oil leaks in a large number, guarantee that other component can obtain enough oil lubricatings.
In sum, inventive piston cooling jet, has usability and reliability more reliably.
Accompanying drawing explanation
Fig. 1: be cut-open view of final assembly of the present invention;
Fig. 2: be the sectional view of valve body 2 of the present invention;
In figure: 1, control valve, 2, valve body, 3, steel ball, 4, spring, 5, orifice plug, 6, oil inlet hole, 7, cavity, 8, positioning hole, 9, oil outlet, 10, spray bar.
Embodiment
Below in conjunction with accompanying drawing, 1,2 couples of the present invention are further described.
As shown in Figure 1, the present embodiment piston cooling nozzle, comprise control valve 1, spray bar 10, described control valve 1 comprises valve body 2, steel ball 3, spring 4, orifice plug 5, described valve body 2 is provided with oil inlet hole 6, oil outlet 9, cavity 7, the diameter of cavity 7 is greater than the diameter of oil inlet hole 6, described steel ball 3, spring 4 is positioned at cavity 7, spring 4 one end is under the positioning supports effect of orifice plug 5, steel ball 3 is pressed on oil inlet hole 6 joint adjacent with cavity 7 by the other end, oil inlet hole 6 is the conical surface with the joint of cavity 7, the angle of swing of spray bar 10 is determined by computer oil spurts direction, with copper brazing, one end of described spray bar 10 is fixedly mounted on oil outlet 9, spray bar 10 is connected with cavity 7.
At the other end of cavity 7, valve body 2 is also provided with positioning hole 8, with copper brazing, orifice plug 5 is fixedly mounted in positioning hole 8, make spring 4, with the pressure of setting, steel ball 3 is pressed on oil inlet hole 6 joint adjacent with cavity 7, pressure of this setting is exactly open or the main oil gallery oil pressure force value of cutting-off controlling valve 1, when the engine oil pressure of main oil gallery meets or exceeds this value, control valve is opened, when the engine oil pressure of main oil gallery is lower than this value, control valve cuts off, thus can guarantee the reliability of inventive piston cooling jet oil spout.
Described control valve 1 in an interference fit, is fixedly mounted on the unthreaded hole of cylinder block main oil gallery, and oil inlet hole 6 communicates with the main oil gallery inner chamber of cylinder block.
Working principle: the control valve 1 of piston cooling nozzle is fixedly mounted on the unthreaded hole of cylinder block main oil gallery, spray bar 10 is connected by control valve 1 and main oil gallery.When the engine operates, machine oil is injected cylinder block main oil gallery by oil pump, after the engine oil pressure in main oil gallery reaches the cracking pressure of control valve 1, machine oil heads on steel ball 3 from oil inlet hole 6 and makes spring 4 forced compression, now control valve 1 is in opening state, machine oil in cylinder block main oil gallery directly enters spray bar 10 by oil inlet hole 6, cavity 7, sprays into the piston body of motion from spray bar 10, implements cooling to piston.Along with the rising of main oil gallery inner engine oil pressure, the oil mass being entered spray bar 10 by control valve 1 is increased, the oil level of piston cooling nozzle injection into pistion also increases thereupon, and this meets engine speed Load lifting, engine oil pressure increases, the requirement that cylinder temperature is higher, piston needs heat dissipating capacity more.
This piston cooling nozzle, control valve 1 adopts interference fit with the Placement of the unthreaded hole of cylinder block main oil gallery, install simple and convenient, overcome in prior art because adopting the Placement of logical oil draining bolt, tapping female bore need be bored in cylinder block, in the problem that installation causes cylinder block to scrap stripped thread easy time tight, and effectively can prevent the generation of oil leakage phenomenon; One end of spray bar 10 is directly installed on oil outlet 9, and structure is more simple, not only reduces the amount of parts of connection, takes up room little, and reduce the possibility of oil leakage, improve the reliability of piston cooling nozzle, reduce cost; Orifice plug 5 is fixedly mounted in positioning hole 8, accurately orifice plug position, location difficulty is larger when mounted to solve orifice plug employing thread connecting mode in prior art, cause the problem that the conformity difference of control valve cracking pressure is larger, the cracking pressure of control valve 1 is stablized, the reliability of piston cooling nozzle oil spout can be guaranteed, avoid the problem that the contingent stripped thread that is threaded causes affecting injection pressure value simultaneously; In addition, the present invention reduces volume and the weight of piston cooling nozzle from structure, and compact structure is attractive in appearance, procedure is simple, save manufacturing cost, and reduce the possibility that machine oil leaks in a large number, guarantee that other component can obtain enough oil lubricatings.This piston cooling nozzle has usability and reliability more reliably.
This piston cooling nozzle can be widely used in various motor.
Be presented above specific embodiments of the invention; but the present invention is not limited to this; those of ordinary skill in the art principle according to the present invention can make a change or revise, and any change and amendment not departing from the principle of the invention, all in protection scope of the present invention.
Claims (6)
1. a piston cooling nozzle, comprise control valve (1), spray bar (10), described control valve (1) comprises valve body (2), steel ball (3), spring (4), orifice plug (5), described valve body (2) is provided with oil inlet hole (6), oil outlet (9), cavity (7), described steel ball (3), spring (4) is positioned at cavity (7), spring (4) one end is under the positioning supports effect of orifice plug (5), steel ball (3) is pressed on oil inlet hole (6) joint adjacent with cavity (7) by the other end, it is characterized in that: one end of described spray bar (10) is arranged on oil outlet (9), be connected with described cavity 7, at the other end of described cavity (7), valve body (2) is also provided with positioning hole (8), described orifice plug (5) is fixedly mounted in positioning hole (8).
2. a kind of piston cooling nozzle according to claim 1, is characterized in that: described control valve (1) is fixedly mounted on the unthreaded hole of cylinder block main oil gallery, and described oil inlet hole (6) communicates with the main oil gallery inner chamber of cylinder block.
3. a kind of piston cooling nozzle according to claim 2, is characterized in that: described control valve (1) is arranged on the unthreaded hole of cylinder block main oil gallery with interference fit.
4. a kind of piston cooling nozzle according to claim 1, is characterized in that: described spray bar (10) copper brazing is fixedly mounted on oil outlet (9).
5. a kind of piston cooling nozzle according to claim 1, is characterized in that: described orifice plug (5) copper brazing is fixedly mounted in positioning hole (8).
6. any one piston cooling nozzle according to claim 1-5, is characterized in that: described oil inlet hole (6) is the conical surface with the joint of cavity (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823298.6A CN104533588A (en) | 2014-12-26 | 2014-12-26 | Piston cooling nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823298.6A CN104533588A (en) | 2014-12-26 | 2014-12-26 | Piston cooling nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533588A true CN104533588A (en) | 2015-04-22 |
Family
ID=52849182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410823298.6A Pending CN104533588A (en) | 2014-12-26 | 2014-12-26 | Piston cooling nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526554A (en) * | 2018-07-09 | 2018-09-14 | 江苏飞达钻头股份有限公司 | Preceding chip dividing groove bores |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206071A (en) * | 1997-07-21 | 1999-01-27 | 邦塔兹中心股份有限公司 | Interference fit cooling spray nozzle |
| JP2005076627A (en) * | 2003-09-03 | 2005-03-24 | Aisan Ind Co Ltd | Piston cooling device for internal combustion engine |
| US7104225B2 (en) * | 2003-11-04 | 2006-09-12 | Bontaz Centre | Piston cooling nozzle with small distance between axes |
| CN201546796U (en) * | 2009-10-23 | 2010-08-11 | 北汽福田汽车股份有限公司 | Piston cooling device |
| CN203189104U (en) * | 2013-04-16 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Piston cooling structure for engine cylinder body |
| CN203201638U (en) * | 2013-04-22 | 2013-09-18 | 浙江黎明发动机零部件有限公司 | Compact plunger type piston cooling device |
| CN204457992U (en) * | 2014-12-26 | 2015-07-08 | 山东华源莱动内燃机有限公司 | Piston cooling nozzle |
-
2014
- 2014-12-26 CN CN201410823298.6A patent/CN104533588A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206071A (en) * | 1997-07-21 | 1999-01-27 | 邦塔兹中心股份有限公司 | Interference fit cooling spray nozzle |
| JP2005076627A (en) * | 2003-09-03 | 2005-03-24 | Aisan Ind Co Ltd | Piston cooling device for internal combustion engine |
| US7104225B2 (en) * | 2003-11-04 | 2006-09-12 | Bontaz Centre | Piston cooling nozzle with small distance between axes |
| CN201546796U (en) * | 2009-10-23 | 2010-08-11 | 北汽福田汽车股份有限公司 | Piston cooling device |
| CN203189104U (en) * | 2013-04-16 | 2013-09-11 | 力帆实业(集团)股份有限公司 | Piston cooling structure for engine cylinder body |
| CN203201638U (en) * | 2013-04-22 | 2013-09-18 | 浙江黎明发动机零部件有限公司 | Compact plunger type piston cooling device |
| CN204457992U (en) * | 2014-12-26 | 2015-07-08 | 山东华源莱动内燃机有限公司 | Piston cooling nozzle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526554A (en) * | 2018-07-09 | 2018-09-14 | 江苏飞达钻头股份有限公司 | Preceding chip dividing groove bores |
| CN108526554B (en) * | 2018-07-09 | 2023-09-15 | 江苏飞达钻头股份有限公司 | Front chip dividing groove drill |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |