CN202832744U - Injection pipe of piston cooling jet nozzle - Google Patents
Injection pipe of piston cooling jet nozzle Download PDFInfo
- Publication number
- CN202832744U CN202832744U CN 201220381804 CN201220381804U CN202832744U CN 202832744 U CN202832744 U CN 202832744U CN 201220381804 CN201220381804 CN 201220381804 CN 201220381804 U CN201220381804 U CN 201220381804U CN 202832744 U CN202832744 U CN 202832744U
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- CN
- China
- Prior art keywords
- hole
- segment
- oil
- injection pipe
- shrinkage
- 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
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an injection pipe of a piston cooling jet nozzle. The injection pipe comprises a pipe body with an oil inlet and an oil outlet, wherein two hole shrinkage segments and a hole enlargement segment are formed in the pipe body; the inner diameter of the first hole shrinkage segment is smaller than that of the oil inlet; the second hole shrinkage segment is positioned at the rear end of the first hole shrinkage segment; the inner diameter of the second hole shrinkage segment is smaller than that of the first shrinkage segment; the hole enlargement segment is arranged at the rear end of the second shrinkage segment; the inner diameter of the hole enlargement is the same as that of an oil discharge port; and the inner diameter of the oil outlet is greater than that of the second hole shrinkage segment and less than or equal to that of the first hole shrinkage segment. Compared with the prior art, the reducing part of the injection pipe disclosed by the utility model is in a shape of smooth and continuous shrinkage neck, the resistance is low when lubricant oil flows, and the flow quantity of the piston cooling jet nozzle is lower than that of an oil pipe with the same hole diameter under the same pressure, so that the insufficient pressure in an engine lubrication system caused by that a cooling piston injects excessive engine oil can be avoided, and the piston of an engine can be sufficiently cooled for normal running.
Description
Technical field
The utility model relates to a kind of injection pipe, specifically a kind of injection pipe of piston cooling nozzle.
Background technique
Along with the application of refrigeration technique in the engine booster, engine power increases substantially, but the temperature of motor also increases.Must could keep normal operation by forcing cooling such as piston.Otherwise, will produce piston and burn the top, cause the damages such as connecting rod, bent axle, body, complete machine is scrapped.And piston cooling nozzle is exactly to be used for forcing cooling piston, has suitable matching gap to guarantee piston and cylinder sleeve when working, and makes the critical component of its normal operation.
Motor for the cold oil of piston cooling nozzle be from lubrication system branch out, oil mass is limited, flow is crossed conference affect lubrication system and works; On the other hand, increase such as fuel delivery, the motor wasted work is also just many.Therefore, during the piston cooling nozzle cooling piston, the efficient that cold oil is injected piston cooling oil passage just seems particularly important.
Summary of the invention
Thereby technical problem to be solved in the utility model provides a kind of aperture and diminishes and reduce the injection pipe of oil transportation amount.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of injection pipe of piston cooling nozzle, comprise the body with filler opening and oil outlet, it is characterized in that: in described body, be provided with two undergauge sections and an extension diameter section, wherein the internal diameter of the first undergauge section is less than the internal diameter of filler opening, the second undergauge section is positioned at the first undergauge section rear end, the internal diameter of the second undergauge section is less than the internal diameter of the first undergauge section, described extension diameter section is arranged on the second undergauge section rear end, the internal diameter of extension diameter section is the internal diameter of oil outlet, and the internal diameter of this oil outlet is greater than the internal diameter of the second undergauge section and be less than or equal to the internal diameter of the first undergauge section.
The degree of depth of described extension diameter section is 1.5 mm～3mm.
The transitional surface of described the first undergauge section and the second undergauge section is conical surface, and the transitional surface of described extension diameter section is the inclined-plane.
Described inclined-plane is vertical with the axis in hole.
Compared with prior art, the utlity model has following advantage:
1, the injection pipe reduced diameter portion is level and smooth continuously necking down shape, so the inwall transitions smooth, and resistance is little during the lubricant oil circulation, and does not destroy the interior metal Organizational Structure, and plasticity is good, and circularity is good during bending deflection, without advantages such as crackings.
2, the hole enlargement of injection pipe small end keeps sharp edge, reduce when making the injection pipe oil spout and disperse, in the oil constriction (cold oil inject piston cooling oil passage efficient reach more than 80%), spray strong, with under the equal pressure, the flow of piston cooling nozzle is less than the flow of the oil pipe of same apertures, can not cause the oil level that sprays because of cooling piston too much to cause the engine lubrication system underpressure, and the piston that can guarantee motor is cooled off fully and runs well.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A section enlarged diagram of Fig. 1.
Fig. 3 is the B section enlarged diagram of Fig. 1.
Fig. 4 is the C section enlarged diagram of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated: as shown in Figure 1, the utility model injection pipe comprises body 1, the two ends of body 1 are respectively filler opening 2 and oil outlet 3, twice undergauge and a hole enlargement between filler opening 2 and oil outlet 3, have been carried out, specifically referring to Fig. 2, Fig. 3 and Fig. 4, the internal diameter of filler opening are D1, and the internal diameter of oil outlet is D4, the internal diameter of the first undergauge section is D2, the internal diameter of the second undergauge section is D3, and wherein, D1 is generally Φ 2.5 mm～Φ 4.8 mm, D2 is Φ 2 mm～Φ 3.7 mm, D3 is Φ 1.3 mm～Φ 2.5 mm, and D4 is Φ 2 mm～Φ 3 mm, and the degree of depth b of extension diameter section is 1.5～3mm.
Claims (4)
1. the injection pipe of a piston cooling nozzle, comprise the body with filler opening and oil outlet, it is characterized in that: in described body, be provided with two undergauge sections and an extension diameter section, wherein the internal diameter of the first undergauge section is less than the internal diameter of filler opening, the second undergauge section is positioned at the first undergauge section rear end, the internal diameter of the second undergauge section is less than the internal diameter of the first undergauge section, described extension diameter section is arranged on the second undergauge section rear end, the internal diameter of extension diameter section is the internal diameter of oil outlet, and the internal diameter of this oil outlet is greater than the internal diameter of the second undergauge section and be less than or equal to the internal diameter of the first undergauge section.
2. the injection pipe of piston cooling nozzle according to claim 1, it is characterized in that: the degree of depth of described extension diameter section is 1.5 mm～3mm.
3. the injection pipe of piston cooling nozzle according to claim 1, it is characterized in that: the transitional surface of described the first undergauge section and the second undergauge section is conical surface, and the transitional surface of described extension diameter section is the inclined-plane.
4. the injection pipe of piston cooling nozzle according to claim 3, it is characterized in that: described inclined-plane is vertical with the axis in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381804 CN202832744U (en) | 2012-08-03 | 2012-08-03 | Injection pipe of piston cooling jet nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381804 CN202832744U (en) | 2012-08-03 | 2012-08-03 | Injection pipe of piston cooling jet nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832744U true CN202832744U (en) | 2013-03-27 |
Family
ID=47944474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381804 Expired - Fee Related CN202832744U (en) | 2012-08-03 | 2012-08-03 | Injection pipe of piston cooling jet nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832744U (en) |
-
2012
- 2012-08-03 CN CN 201220381804 patent/CN202832744U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |