CN204082293U - Piston cooling spray hook - Google Patents
Piston cooling spray hook Download PDFInfo
- Publication number
- CN204082293U CN204082293U CN201420453094.3U CN201420453094U CN204082293U CN 204082293 U CN204082293 U CN 204082293U CN 201420453094 U CN201420453094 U CN 201420453094U CN 204082293 U CN204082293 U CN 204082293U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- spray hook
- base
- cooling
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 239000007921 spray Substances 0.000 title claims abstract description 58
- 239000003921 oil Substances 0.000 claims abstract description 63
- 239000010721 machine oil Substances 0.000 claims abstract description 26
- 210000000707 wrist Anatomy 0.000 claims abstract description 15
- 238000005461 lubrication Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston cooling spray hook.This piston cooling spray hook comprises: base, and it is fixed on engine body, and the inside oil pocket of described base is communicated with the oil passageway on engine body; And spray hook, it comprises: transverse branch and S shape branch, and described S shape branch sidewall offers the oil guiding hole of the machine oil cooling chamber opening aiming at piston, and the outer end oil outlet of this spray hook aims at connecting rod small end and wrist pin position.This piston cooling spray hook sets up a spray site (oil guiding hole), strengthen cooling and the lubrication of piston base, fully ensure that the cooling needs of piston base, also lubrication and the cooling of wrist pin and connecting rod small end position can be strengthened, reduce the overheated possibility broken down of piston base, improve reliability and the quality of motor.
Description
Technical field
The utility model relates to engine art, particularly a kind of piston cooling spray hook.
Background technique
Available engine, reinforcing degree improves constantly, and heat load continues to increase, and superheating phenomenon all easily appears in piston and the connecting rod small end bearing shell etc. be connected with piston, there will be severe piston and burns and melt and the problem such as connecting rod small end bearing shell overheating failure.Prior art adds bottom piston cooling spray hook fitting piston increases machine oil cooling chamber to strengthen the cooling of piston base.The machine oil cooling chamber of piston base has two openings, and the machine oil that piston cooling spray hook ejects enters piston base oil pocket from one of them opening, from another one opening out, takes away heat, reduces piston base temperature.
Piston cooling spray hook due to prior art only has an oil outlet, the machine oil of ejection substantially all enters piston base oil pocket entrance, so other position of piston base, the positions such as the connecting rod small end comprising wrist pin and be connected with wrist pin all do not have enough oil lubricatings and cooling, easily there is problems of excessive heat, also find that the problems such as overheated blackout appear in connecting rod small end bearing shell in actual use, serious appearance connecting rod small end bearing bush abrasion and coming off, if do not strengthened the cooling of this position, to grow service time or Environmental Conditions badly all easily causes connecting rod small end bearing bush abrasion to lose efficacy, the catastrophe failure that piston rod part is scrapped.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is to provide a kind of simple and reasonable piston cooling spray hook, this piston cooling spray hook sets up a spray site (oil guiding hole), strengthen cooling and the lubrication of piston base, most of machine oil is sprayed by the oil guiding hole of the utility model piston cooling spray hook to be entered in piston machine oil cooling chamber bottom cooling piston, fraction machine oil is also had then to eject other position of cooling and lubricating piston base (mainly wrist pin and connecting rod small end bearing shell position) by the oil guiding hole spraying hook, fully ensure that the cooling needs of piston base, also lubrication and the cooling of wrist pin and connecting rod small end position can be strengthened, reduce the overheated possibility broken down of piston base, improve reliability and the quality of motor.
For achieving the above object, the utility model provides piston cooling spray hook, comprising: base, and it is fixed on engine body, and the inside oil pocket of described base is communicated with the oil passageway on engine body; And spray hook, it comprises: transverse branch and S shape branch, and described S shape branch sidewall offers the oil guiding hole of the machine oil cooling chamber opening aiming at piston, and the outer end oil outlet of this spray hook aims at connecting rod small end and wrist pin position.
Preferably, in technique scheme, base is bolted on engine body by threeway.
Preferably, in technique scheme, oil guiding hole keeps same center line with the part oil duct in spray hook.
Preferably, in technique scheme, the aperture of oil guiding hole is less than the aperture of described spray hook internal galleries.
Preferably, in technique scheme, one end and the side being fixed on base of transverse branch, and keep being communicated with the inside oil pocket of base.
Compared with prior art, the utility model has following beneficial effect: this piston cooling spray hook sets up a spray site (oil guiding hole), strengthen cooling and the lubrication of piston base, most of machine oil is sprayed by the oil guiding hole of the utility model piston cooling spray hook to be entered in piston machine oil cooling chamber bottom cooling piston, fraction machine oil is also had then to eject other position of cooling and lubricating piston base (mainly wrist pin and connecting rod small end bearing shell position) by the oil guiding hole spraying hook, fully ensure that the cooling needs of piston base, also lubrication and the cooling of wrist pin and connecting rod small end position can be strengthened, reduce the overheated possibility broken down of piston base, improve reliability and the quality of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of piston cooling spray hook of the present utility model.
Fig. 2 is the structural representation of existing piston cooling spray hook.
Description of reference numerals:
1-base, 2-sprays hook, 3-oil guiding hole, and 4-sprays hook, 5-base.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, the concrete structure according to the piston cooling spray hook of the utility model embodiment comprises: base 1 and one end are fixed on the spray hook 2 of this base 1 side, and is opened in the oil guiding hole 3 of spray hook 2 sidewall.Wherein, base 1 to be bolted on engine body by threeway and to communicate with the oil passageway on body.Spray 2, hook is welded on base and with the oil pocket of base 1 and keeps being communicated with.Oil guiding hole 3 is opened on the wall of spray hook 2.During engine running, machine oil enters in piston cooling spray hook from the oil duct of body, major part can eject from oil guiding hole 3, by cooling piston in the machine oil cooling chamber of origin-location injection into pistion, fraction can from the oil outlet of spray hook 2 rear-most end out in addition, for cooling and lube pistons connecting rod small end, the parts such as wrist pin.
Base 1 has inner oil pocket, during assembling, it is bolted on engine body by threeway, and the inside oil pocket of base 1 is communicated with the oil passageway on body, thus by the inside oil pocket of the importing base 1 from body oil duct inner engine oil, and then be spray hook 2 fuel feeding.
As shown in Figure 2, original spray hook 4 is L shape, one end of its transverse branch is fixed on the side of base 5, and keep being communicated with the inside oil pocket of base 5, the oil outlet of the outer end of the longitudinal branch of L shape spray hook aims at the machine oil cooling chamber of piston, thus by cooling piston in the machine oil cooling chamber from body oil duct inner engine oil injection into pistion.As shown in Figure 1, and the spray hook 2 of the application's piston cooling spray hook comprises: transverse branch (transverse branch relative to original L shape spray hook) and S shape branch, wherein, one end and the side being fixed on base 1 of transverse branch, and keep being communicated with the inside oil pocket of base 1; The sidewall of S shape branch offers oil guiding hole 3, the machine oil that its outer end oil outlet ejects, except can the position (mainly connecting rod small end and wrist pin position) arrived of cooling injection, also can strengthen the lubrication (as connecting rod small end bearing shell face, piston and wrist pin contact surface) etc. being ejected into motion frictive surface, reduce the possibility of the overheated or lack of lubrication causing trouble of region of interest, improve quality and the reliability level of piston rod part.
Oil guiding hole 3 is opened on the sidewall of spray hook 2, and aims at the machine oil cooling chamber opening of piston.Machine oil enters in piston cooling spray hook from the oil duct of body, and major part can eject from oil guiding hole 3, by cooling piston in the machine oil cooling chamber of origin-location injection into pistion.Oil guiding hole 3 keeps same center line with the part oil duct in spray hook, and this oil guiding hole aperture should be less than the aperture of spray hook oil duct.The size of oil guiding hole 3 is determined according to design objective, CAE calculating and experimental test, generally smaller than the endoporus of spray hook, to ensure that machine oil is not all go out from oil guiding hole.Rational Oil Guide aperture can ensure that the machine oil ejected from oil guiding hole and oil outlet is the percentage designed.
To sum up, this piston cooling spray hook sets up a spray site (oil guiding hole), strengthen cooling and the lubrication of piston base, most of machine oil is sprayed by the oil guiding hole of the utility model piston cooling spray hook to be entered in piston machine oil cooling chamber bottom cooling piston, fraction machine oil is also had then to eject other position of cooling and lubricating piston base (mainly wrist pin and connecting rod small end bearing shell position) by the oil guiding hole spraying hook, fully ensure that the cooling needs of piston base, also lubrication and the cooling of wrist pin and connecting rod small end position can be strengthened, reduce the overheated possibility broken down of piston base, improve reliability and the quality of motor.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. a piston cooling spray hook, is characterized in that, comprising:
Base, it is fixed on engine body, and the inside oil pocket of described base communicates with the oil passageway on engine body; And
Spray hook, it comprises: transverse branch and S shape branch, and described S shape branch sidewall offers the oil guiding hole of the machine oil cooling chamber opening aiming at piston, and the outer end oil outlet of this spray hook aims at connecting rod small end and wrist pin position.
2. piston cooling spray hook according to claim 1, is characterized in that, described base is bolted on engine body by threeway.
3. piston cooling spray hook according to claim 1, is characterized in that, described oil guiding hole keeps same center line with the part oil duct in spray hook.
4. piston cooling spray hook according to any one of claim 1 to 3, is characterized in that, the aperture of described oil guiding hole is less than the aperture of described spray hook internal galleries.
5. piston cooling spray hook according to claim 4, is characterized in that, one end and the side being fixed on base of described transverse branch, and keeps being communicated with the inside oil pocket of base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453094.3U CN204082293U (en) | 2014-08-12 | 2014-08-12 | Piston cooling spray hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453094.3U CN204082293U (en) | 2014-08-12 | 2014-08-12 | Piston cooling spray hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082293U true CN204082293U (en) | 2015-01-07 |
Family
ID=52175021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453094.3U Expired - Fee Related CN204082293U (en) | 2014-08-12 | 2014-08-12 | Piston cooling spray hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131875A (en) * | 2014-08-12 | 2014-11-05 | 广西玉柴机器股份有限公司 | Piston cooling spray hook |
-
2014
- 2014-08-12 CN CN201420453094.3U patent/CN204082293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131875A (en) * | 2014-08-12 | 2014-11-05 | 广西玉柴机器股份有限公司 | Piston cooling spray hook |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 |