CN216811865U - Piston cooling nozzle - Google Patents
Piston cooling nozzle Download PDFInfo
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- CN216811865U CN216811865U CN202220683618.2U CN202220683618U CN216811865U CN 216811865 U CN216811865 U CN 216811865U CN 202220683618 U CN202220683618 U CN 202220683618U CN 216811865 U CN216811865 U CN 216811865U
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- valve
- sleeve
- cooling nozzle
- piston cooling
- valve body
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Abstract
A piston cooling nozzle, characterized by: a sleeve is arranged in the center of the valve cavity, an oil passing groove is formed in the position, close to the lower end, of the side wall of the sleeve, and an oil passing channel is formed between the outer side wall of the sleeve and the inner side wall of the valve cavity; the valve core is arranged in the sleeve and is matched with the sleeve in a sliding way, and the valve core is also connected with an elastic piece which can drive the valve core to downwards keep sealing with the valve seat. Adopt above-mentioned scheme, be equipped with the sleeve in the valve pocket, realize the guide effect of case by the sleeve, even at the in-process of oil spout pipe and mount pad in the installation, cause the valve body to warp, also can not influence the normal installation and the action of case, reduce case wearing and tearing, not only can improve life, reduce processing cost and rework cost, ensure job stabilization moreover, improved operational reliability.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a piston cooling nozzle.
Background
In an engine structure, an oil cooling circulation is a key structure for lubricating and cooling an engine piston. In the engine oil cooling circulation, a piston cooling nozzle controls flow and opening conditions through a one-way pressure valve, a plunger or a steel ball for plugging an oil inlet is arranged on the oil inlet side in a valve body of the one-way valve, pretightening force for plugging the oil inlet by the plunger or the steel ball is provided by a spring, and when the pressure of an oil inlet and outlet pipe is greater than the pretightening force of the spring on the plunger or the steel ball, the spring is compressed, and the plunger or the steel ball is jacked open to enable the valve body to be switched on.
The traditional plunger type check valve main body is formed by welding a valve body, a mounting seat and an oil injection pipe, wherein a cylindrical cavity is arranged inside the valve body and is matched with the outer side wall of a plunger to play a role in guiding. After welding, the deformation direction of the valve body is uncontrollable, the roundness of the inner wall is poor, the matching of the valve body and the plunger is poor, and the valve body and the plunger cannot be assembled possibly; in the using process, the pressure of the plunger which is jacked open is uneven, the abrasion is serious after long-term use, and the one-way valve fails and leaks.
SUMMERY OF THE UTILITY MODEL
To overcome the deficiencies of the background art, the present invention provides a piston cooling nozzle.
The technical scheme adopted by the utility model is as follows: a piston cooling nozzle comprises a valve body, a valve seat, a valve core and an oil injection pipe, wherein the valve body is provided with a valve cavity with an opening at the lower end, an oil outlet communicated with the valve cavity is formed at the upper end of the side wall of the valve body, the valve seat is installed at the lower end of the valve cavity, an oil inlet is formed in the center of the valve seat, and the oil injection pipe is communicated with the oil outlet of the valve body; a sleeve is arranged in the center of the valve cavity, an oil passing groove is formed in the position, close to the lower end, of the side wall of the sleeve, and an oil passing channel is formed between the outer side wall of the sleeve and the inner side wall of the valve cavity; the valve core is arranged in the sleeve and is in sliding fit with the sleeve, and the valve core is also connected with an elastic piece which can drive the valve core to downwards keep sealing with the valve seat.
The sleeve and the valve seat are of an integrated structure.
The elastic part is a spring, the valve core is of a cylindrical structure, a spring groove matched with the spring is formed at the upper end of the valve core, the spring is arranged in the spring groove, and two ends of the spring are respectively abutted against the top surface of the valve cavity and the bottom surface of the spring groove.
The upper end of the sleeve is sealed with the top surface of the valve cavity, and a pressure balance hole is formed in the center of the top of the valve body.
The valve chamber lower extreme opening part is equipped with the mounting groove, the disk seat inlays to be established in the mounting groove to with the spacing cooperation in bottom surface of mounting groove.
The valve seat and the valve core form a conical seal.
And the oil injection pipe is welded with the valve body in a sealing way.
The valve body is also sleeved with a mounting seat, and the mounting seat is connected with the valve body in a welding mode.
The utility model has the beneficial effects that: the scheme is adopted, the sleeve is arranged in the valve cavity, the guiding effect of the valve core is realized by the sleeve, even if the valve body is deformed in the process of installing the oil injection pipe and the installing seat, the normal installation and action of the valve core cannot be influenced, the abrasion of the valve core is reduced, the service life can be prolonged, the processing cost and the rework cost are reduced, the working stability is ensured, and the operation reliability is improved.
Drawings
FIG. 1 is a schematic structural diagram of a piston cooling nozzle according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a piston cooling nozzle in accordance with an embodiment of the present invention.
Detailed Description
The embodiments of the utility model will be further described with reference to the accompanying drawings in which:
as shown in the figure, the piston cooling nozzle comprises a valve body 1, a valve seat 2, a valve core 3, an oil injection pipe 4, a sleeve 5, a spring 6 and a mounting seat 7.
The valve body 1 is provided with a valve cavity 11 with an opening at the lower end, and the upper end of the side wall of the valve body 1 is provided with an oil outlet 12 communicated with the valve cavity 11.
The valve seat 2 is arranged at the lower end of the valve cavity 11, and an oil inlet 21 is formed in the center of the valve seat 2. Wherein, 11 lower extreme opening part of valve pocket is equipped with mounting groove 14, disk seat 2 wholly inlays to be established in mounting groove 14 to with the spacing cooperation in bottom surface of mounting groove 14, specifically can realize fixed connection through modes such as welding, bolted connection, threaded connection between disk seat 2 and the valve body 1.
The sleeve 5 is arranged in the center of the valve cavity 11 and is in an integrated structure with the valve seat 2, the upper end of the sleeve is in sealing butt joint with the top surface of the valve cavity, an oil passing groove 51 is formed in the position, close to the lower end, of the side wall of the sleeve 5, the outer diameter of the sleeve 5 is smaller than the inner diameter of the valve cavity, and an oil passing channel 52 is formed between the outer side wall of the sleeve 5 and the inner side wall of the valve cavity 11. Wherein, the sleeve also can be with valve body integrated into one piece, its lower extreme and the sealed butt of disk seat, also perhaps sleeve and disk seat, the equal components of a whole that can function independently setting of valve body, through both ends center location, sealed butt the mode is stably fixed in the valve chamber, of course, adopt sleeve 5 and 2 integrated into one piece's of disk seat structure in this embodiment, not only stable in structure guarantees that follow-up action is stable, and production and processing is also very convenient moreover, and the cost of manufacture is low.
The valve core 3 is arranged in the sleeve 5 and is in sliding fit with the sleeve 5. The valve core 3 is of a cylindrical structure, the upper end of the valve core 3 is provided with a spring groove 31, the spring 6 is arranged in the spring groove 31, two ends of the spring 6 are respectively abutted against the top surface of the valve cavity and the bottom surface of the spring groove, and the spring 6 can drive the valve core 3 to downwards keep sealing with the valve seat 2.
Further, a pressure balance hole 13 is formed in the center of the top of the valve body 1, and pressure balance is achieved through the pressure balance hole 13, so that stable action of the valve core 3 is guaranteed.
And a conical seal is formed between the valve seat 2 and the valve core 3, so that the sealing is more reliable.
When the valve body 1, the valve seat 2, the valve core 3, the sleeve 5 and the spring 6 are assembled, the valve core 3 and the spring 6 are firstly installed into the sleeve 5, and the whole body is installed from the opening at the lower end of the valve cavity through the valve seat, so that the whole assembly operation is very convenient.
In addition, the oil spraying pipe 4 is communicated with an oil outlet 12 of the valve body 1, the mounting seat 7 is sleeved on the outer side of the valve body, and the oil spraying pipe 4 and the mounting seat 7 are fixedly connected with the valve body 1 in a welding mode.
When the piston cooling nozzle works, the piston cooling nozzle is installed on an engine cylinder body through the installation seat, the oil inlet is communicated with a cooling channel on the engine cylinder body, when the pressure of the oil inlet is smaller than the pretightening force of the spring, the valve core and the valve seat are matched in a sealing mode to seal the oil inlet, when the pressure of the oil inlet is larger than the pretightening force of the spring, the spring is compressed, the valve core is pushed upwards, engine oil enters the sleeve through the oil inlet, passes through the oil groove and the oil channel, enters the oil spraying pipe from the oil outlet, and then is sprayed out from the nozzle to cool the lubricating oil.
By adopting the piston cooling nozzle, the sleeve is arranged in the valve cavity, the guiding effect of the valve core is realized by the sleeve, even if the valve body is deformed in the process of installing the oil injection pipe and the installing seat, the normal installation and action of the valve core cannot be influenced, the abrasion of the valve core is reduced, the service life can be prolonged, the processing cost and the rework cost are reduced, the working stability is ensured, and the operation reliability is improved.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should know that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to the above embodiments, and any modifications using the inventive concept are intended to be included within the scope of the appended claims.
Claims (8)
1. A piston cooling nozzle comprises a valve body (1), a valve seat (2), a valve core (3) and an oil injection pipe (4), wherein the valve body (1) is provided with a valve cavity (11) with an opening at the lower end, an oil outlet (12) communicated with the valve cavity (11) is formed at the upper end of the side wall of the valve body (1), the valve seat (2) is installed at the lower end of the valve cavity (11), an oil inlet (21) is formed in the center of the valve seat (2), and the oil injection pipe (4) is communicated with the oil outlet (12) of the valve body (1);
the method is characterized in that: a sleeve (5) is arranged in the center of the valve cavity (11), an oil passing groove (51) is formed in the position, close to the lower end, of the side wall of the sleeve (5), and an oil passing channel (52) is formed between the outer side wall of the sleeve (5) and the inner side wall of the valve cavity (11);
the valve core (3) is arranged in the sleeve (5) and is in sliding fit with the sleeve (5), and the valve core (3) is further connected with an elastic piece capable of driving the valve core to downwards keep sealing with the valve seat (2).
2. The piston cooling nozzle of claim 1, wherein: the sleeve (5) and the valve seat (2) are of an integrated structure.
3. The piston cooling nozzle of claim 1, wherein: the elastic part is a spring (6), the valve core (3) is of a cylindrical structure, a spring groove (31) matched with the spring (6) is formed at the upper end of the valve core (3),
the spring (6) is arranged in the spring groove (31), and two ends of the spring are respectively abutted against the top surface of the valve cavity and the bottom surface of the spring groove.
4. The piston cooling nozzle of claim 1, wherein: the upper end of the sleeve (5) is sealed with the top surface of the valve cavity, and a pressure balance hole (13) is formed in the center of the top of the valve body (1).
5. The piston cooling nozzle of claim 1, wherein: the valve cavity (11) is provided with a mounting groove (14) at the lower end opening, and the valve seat (2) is embedded in the mounting groove (14) and is in spacing fit with the bottom surface of the mounting groove (14).
6. The piston cooling nozzle of claim 1, wherein: the valve seat (2) and the valve core (3) form a conical seal.
7. The piston cooling nozzle of claim 1, wherein: and the oil injection pipe (4) is hermetically welded with the valve body (1).
8. The piston cooling nozzle of claim 1, wherein: the valve body (1) is further sleeved with a mounting seat (7), and the mounting seat (7) is connected with the valve body (1) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683618.2U CN216811865U (en) | 2022-03-28 | 2022-03-28 | Piston cooling nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683618.2U CN216811865U (en) | 2022-03-28 | 2022-03-28 | Piston cooling nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216811865U true CN216811865U (en) | 2022-06-24 |
Family
ID=82046956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220683618.2U Active CN216811865U (en) | 2022-03-28 | 2022-03-28 | Piston cooling nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216811865U (en) |
-
2022
- 2022-03-28 CN CN202220683618.2U patent/CN216811865U/en active Active
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