CN213478467U - Piston cooling nozzle and engine - Google Patents
Piston cooling nozzle and engine Download PDFInfo
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- CN213478467U CN213478467U CN202022210493.5U CN202022210493U CN213478467U CN 213478467 U CN213478467 U CN 213478467U CN 202022210493 U CN202022210493 U CN 202022210493U CN 213478467 U CN213478467 U CN 213478467U
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Abstract
The utility model discloses a piston cooling nozzle and engine relates to engine technical field. The piston cooling nozzle comprises a shell, a slide valve and a ball valve, wherein a main oil inlet and a main oil outlet are formed in the shell; the slide valve is arranged along the axial direction of the shell and comprises a valve core, and the valve core can move between a first position and a second position to cut off or communicate the main oil inlet and the main oil outlet; the ball valve is arranged in the valve core, and when the valve core is located at the first position, the ball valve can move under the action of oil pressure to communicate the main oil inlet with the main oil outlet. The utility model provides a piston cooling nozzle is at normal during operation, whether spout oil and fuel injection quantity size through slide valve control piston cooling nozzle, when the slide valve is in the primary importance and blocks, whether spout oil and fuel injection quantity size of accessible ball valve control piston cooling nozzle, has avoided piston cooling nozzle can't open the piston that leads to and has overheated drawing jar and a series of problems.
Description
Technical Field
The utility model relates to the technical field of engines, especially, relate to a piston cooling nozzle and engine.
Background
The piston works at high temperature and high pressure, and faults such as cylinder pulling, melting or cylinder explosion easily occur. In order to solve the problems, the engine is generally provided with a piston cooling nozzle, and the piston is cooled by injecting oil into an inner cooling oil cavity of the piston. The thermal load is not high during engine start-up and at low speeds, when the piston cooling nozzles are active, they reduce the lubrication system pressure, which is detrimental to bearing shoes and other lubricated parts.
In order to control whether the piston cooling nozzle injects oil or not and the amount of injected oil, a corresponding valve is generally added for control. The piston cooling nozzle with the valve can realize no oil injection in the starting and low-speed processes, shortens the pressure build-up time of a lubricating system, and improves the low-speed reliability of a bearing bush and other lubricating parts. However, the problem of clamping stagnation or locking of the piston cooling nozzle with the valve is easy to occur in the actual operation process, so that the cooling nozzle cannot be opened, the piston is overheated, the cylinder is pulled, a series of problems are caused, and the engine is often directly scrapped.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piston cooling nozzle, this piston cooling nozzle still can normally work when the valve body jamming or card are dead.
Another object of the present invention is to provide an engine, which has a long service life.
To achieve the purpose, the utility model adopts the following technical proposal:
a piston cooling nozzle, comprising:
the oil-saving device comprises a shell, wherein a main oil inlet and a main oil outlet are formed in the shell;
a spool valve disposed along an axial direction of the housing, the spool valve including a spool movable between a first position and a second position to cut off or communicate the main oil inlet and the main oil outlet;
the ball valve is arranged in the valve core, and when the valve core is located at the first position, the ball valve can move under the action of oil pressure so as to communicate the main oil inlet with the main oil outlet.
Optionally, a first oil inlet and a first oil outlet are arranged on the valve core, the first oil inlet is communicated with the main oil inlet, when the valve core is located at the first position, the first oil outlet is communicated with the main oil outlet, and the ball valve is used for controlling opening and closing of the first oil inlet.
Optionally, the slide valve further includes a valve seat, a second oil outlet is disposed on the valve seat, the second oil outlet is communicated with the main oil outlet, and when the valve element is in the first position, the first oil outlet is communicated with the second oil outlet.
Optionally, a second oil inlet is provided on the valve seat, and the second oil inlet is communicated with both the main oil inlet and the first oil inlet.
Optionally, a third oil outlet is further arranged on the valve seat, and the third oil outlet is communicated with the main oil outlet; when the oil pressure is greater than the opening pressure of the valve core, the valve core moves to be capable of communicating the second oil inlet and the third oil outlet.
Optionally, the third oil outlet is at a higher position than the second oil outlet, which is at a higher position than the total oil outlet.
Optionally, the opening pressure of the ball valve is less than the full opening pressure of the valve spool.
Optionally, the ball valve further comprises a first elastic member, the spool valve further comprises a second elastic member, one end of the first elastic member is connected with the ball valve, and the other end of the first elastic member is connected with the valve core; one end of the second elastic piece is connected with the valve core, and the other end of the second elastic piece is connected with the valve seat.
Optionally, the piston cooling nozzle further comprises an oil drain port, and the oil drain port is arranged on the valve seat.
An engine comprising a piston cooling nozzle as described in any one of the above.
The utility model has the advantages that:
the utility model provides a piston cooling nozzle, set up slide valve and ball valve in the casing, the slide valve includes the case, the case can move between the first position and the second position, in order to cut off or communicate total oil inlet and total oil outlet; the ball valve is arranged in the valve core, and when the valve core is located at the first position, the ball valve can move under the action of oil pressure to communicate the main oil inlet with the main oil outlet. The utility model provides a piston cooling nozzle is at normal during operation, through whether oil spout and fuel injection quantity size of slide valve control piston cooling nozzle, blocks when cutting off total oil inlet and total oil-out when the slide valve, whether oil spout and fuel injection quantity size of accessible ball valve control piston cooling nozzle, has avoided piston cooling nozzle can't open the overheated scuffing of cylinder and a series of problems of piston that leads to.
The utility model provides an engine uses foretell piston cooling nozzle for the piston is not fragile, thereby has prolonged the life of engine.
Drawings
FIG. 1 is a schematic illustration of a piston cooling nozzle slide valve according to an embodiment of the present invention in a first position with a ball valve not open;
FIG. 2 is a schematic view of a piston cooling nozzle slide valve according to an embodiment of the present invention in a first position with a ball valve open;
FIG. 3 is a schematic view of a piston cooling nozzle slide valve according to an embodiment of the present invention between a first position and a second position;
fig. 4 is a schematic view of a piston cooling nozzle slide valve according to an embodiment of the present invention in a second position.
The labels in the figure are:
1. a housing; 2. a spool valve; 3. a ball valve; 4. a cavity;
11. a main oil inlet; 12. a total oil outlet; 21. a valve core; 22. a valve seat; 23. a second elastic member; 31. a first elastic member;
211. a first oil inlet; 212. a first oil outlet; 221. a second oil outlet; 222. a second oil inlet; 223. a third oil outlet; 224. an oil drainage port.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 and 2, the present embodiment provides a piston cooling nozzle, which comprises a housing 1, a slide valve 2 and a ball valve 3, wherein the housing 1 is provided with a main oil inlet 11 and a main oil outlet 12; the slide valve 2 is arranged along the axial direction of the shell 1, the slide valve 2 comprises a valve core 21, and the valve core 21 can move between a first position and a second position to cut off or connect the main oil inlet 11 and the main oil outlet 12; the ball valve 3 is arranged in the valve core 21, and when the valve core 21 is in the first position, the ball valve 3 can move under the action of oil pressure to communicate the main oil inlet 11 and the main oil outlet 12.
The piston cooling nozzle provided by the embodiment is characterized in that a slide valve 2 and a ball valve 3 are arranged in a housing 1, the slide valve 2 comprises a valve core 21, and the valve core 21 can move between a first position and a second position so as to cut off or connect a main oil inlet 11 and a main oil outlet 12; the ball valve 3 is arranged in the valve core 21, and when the valve core 21 is in the first position, the ball valve 3 can move under the action of oil pressure to communicate the main oil inlet 11 and the main oil outlet 12. The piston cooling nozzle that this embodiment provided is when normal work, through slide valve 2 control piston cooling nozzle whether spout oil and the oil spout size, when slide valve 2 blocks and cuts off total oil inlet 11 and total oil-out 12, accessible ball valve 3 control piston cooling nozzle whether spout oil and the oil spout size, has avoided piston cooling nozzle to open overheated scuffing of cylinder and a series of problems that lead to.
In this embodiment, the main oil inlet 11 is disposed at the top end of the housing 1, the accommodating cavity of the housing 1 is narrow at the top and wide at the bottom, the outer diameter of the slide valve 2 is matched with the minimum inner diameter of the housing 1, i.e. a cavity 4 is formed between the lower part of the slide valve 2 and the housing 1, the main oil outlet 12 is disposed on the side wall communicated with the cavity 4, and the cooling oil enters from the main oil inlet 11 on the housing 1 and flows into the main oil outlet 12 through the cavity 4.
Optionally, a first oil inlet 211 and a first oil outlet 212 are arranged on the valve core 21, the first oil inlet 211 is communicated with the main oil inlet 11, when the valve core 21 is at the first position, the first oil outlet 212 is communicated with the main oil outlet 12, and the ball valve 3 is used for controlling opening and closing of the first oil inlet 211. Specifically, the spool valve 2 further includes a valve seat 22, a second oil outlet 221 is provided on the valve seat 22, the second oil outlet 221 is communicated with the main oil outlet 12, and when the spool is in the first position, the first oil outlet 212 is communicated with the second oil outlet 221.
In the present embodiment, when the spool 21 of the spool valve 2 is clamped in the valve seat 22 and is in the first position, the piston cooling nozzle cannot spray oil through the spool valve 2, when the oil pressure is greater than the opening pressure of the ball valve 3, the ball valve 3 moves downward, the first oil inlet 211 is opened, the cooling oil enters the spool 21 from the first oil inlet 211, the first oil outlet 212 and the second oil outlet 221 are in a completely connected state, and the cooling liquid flows into the cavity 4 from the spool 21 through the first oil outlet 212 and the second oil outlet 221 and then flows into the main oil outlet 12, so that oil spraying is realized.
Optionally, a second oil inlet 222 is provided on the valve seat 22, and the second oil inlet 222 is communicated with both the main oil inlet 11 and the first oil inlet 211. In the present embodiment, the second oil inlet 222 is disposed between the main oil inlet 11 and the first oil inlet 211, and the cooling oil enters from the main oil inlet 11 and enters the first oil inlet 211 through the second oil inlet 222.
Optionally, a third oil outlet 223 is further disposed on the valve seat 22, the third oil outlet 223 is communicated with the main oil outlet 12, and when the oil pressure is greater than the opening pressure of the valve spool 21, the valve spool 21 moves to be able to communicate the second oil inlet 222 with the third oil outlet 223. In the present embodiment, when the oil pressure reaches the opening pressure of the spool 21 in the normal state of the spool valve 2, the spool 21 moves downward, and the cooling oil entering the second oil inlet 222 can enter the cavity 4 through the third oil outlet 223 and then flow into the main oil outlet 12 to realize oil injection.
Alternatively, the third oil outlet 223 is located higher than the second oil outlet 221, and the second oil outlet 221 is located higher than the total oil outlet 12. In the present embodiment, the position of the main oil outlet 12 is set at the lowest position of the housing 1, the second oil outlet 221 is set below the third oil outlet 223, when the spool valve 2 is in the initial state, the valve core 21 abuts against the valve seat 22, the third oil outlet 223 is just completely closed, and the first oil outlet 212 and the second oil outlet 221 are all communicated. Under the action of oil pressure, the valve core 21 moves downwards, the third oil outlet 223 is gradually opened, and as shown in fig. 3, the first oil outlet 212 and the second oil outlet 221 are communicated with each other; as shown in fig. 4, when the third outlet port 223 is fully opened, the spool 21 is in the second position, and the first outlet port 212 and the second outlet port 221 are not communicated. The piston cooling nozzle enters the main oil outlet 12 through the third oil outlet 223 to realize oil injection.
Alternatively, the cracking pressure of the ball valve 3 is smaller than the full cracking pressure of the spool 21. In the present embodiment, the opening pressure of the ball valve 3 is P1, the opening pressure of the valve element 21 is P2, the full opening pressure of the valve element 21 is P3, and P2 < P1 < P3. When the valve core 21 reaches the full-open pressure P3, the third oil outlet 223 is fully opened, the first oil outlet 212 and the second oil outlet 221 are not communicated, and the piston cooling nozzle oil injection cannot be controlled through the ball valve 3. The P2 is 10 kPa-30 kPa, and the P1 is slightly higher than the P2.
Optionally, the ball valve 3 further includes a first elastic member 31, the spool 2 further includes a second elastic member 23, one end of the first elastic member 31 is connected to the ball valve 3, and the other end is connected to the spool 21; one end of the second elastic member 23 is connected to the valve body 21, and the other end is connected to the valve seat 22. In the present embodiment, the first elastic member 31 and the second elastic member 23 are both return springs. When the main oil inlet 11 is not filled with oil, the ball valve 3 abuts against the first oil inlet 211 under the action of the elastic restoring force of the first elastic member 31, and the valve core 21 abuts against the valve seat 22 under the action of the elastic restoring force of the second elastic member 23, so as to close the third oil outlet 223.
Optionally, the piston cooling nozzle further includes a drain port 224, the drain port 224 being disposed on the valve seat 22. A drain port 224 is provided for draining the cooling oil leaking from within the valve seat 22.
The working process of the piston cooling nozzle provided by the embodiment is as follows:
as shown in fig. 1, in the initial state, the oil pressure is less than P2, the third oil outlet 223 and the first oil inlet 211 are both closed, and the piston cooling nozzle does not spray oil;
as shown in fig. 3, when the oil pressure is greater than P2 and less than P1, the valve core 21 is opened, the ball valve 3 is not opened, and the cooling oil flows out through the third oil outlet 223; when the oil pressure is greater than P1 and less than P3, the ball valve 3 opens the first oil inlet 211 under the action of the oil pressure, the third oil outlet 223 is partially opened, the first oil outlet 212 and the second oil outlet 221 are partially communicated, and the cooling oil enters the main oil outlet 12 through the third oil outlet 223 and the second oil outlet 221 to realize oil injection;
as shown in fig. 4, when the oil pressure is greater than P3, the third oil outlet 223 is fully opened, the valve spool 21 is in the second position, the first oil outlet 212 and the second oil outlet 221 are not communicated, and at this time, all the cooling oil enters the main oil outlet 12 through the third oil outlet 223, so that oil injection is realized.
As shown in fig. 2, if the spool valve 2 is stuck in the first position, and the oil pressure is greater than P2, the spool 21 is not moved, the piston cooling oil nozzle cannot spray oil, and when the oil pressure is greater than P1, the ball valve 3 is opened, and the cooling oil flows into the spool 21 through the first oil inlet 211, and at this time, the first oil outlet 212 and the second oil outlet 221 are in a full-communication state. The cooling oil enters the main oil outlet 12 through the second oil outlet 221, and oil injection is realized.
The present embodiment also provides an engine including the above-described piston cooling nozzle. The engine provided by the embodiment adopts the piston cooling nozzle, so that the piston is not easy to damage, and the service life of the engine is prolonged.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A piston cooling nozzle, comprising:
the oil pump comprises a shell (1), wherein a main oil inlet (11) and a main oil outlet (12) are formed in the shell (1);
a slide valve (2), the slide valve (2) being disposed along an axial direction of the housing (1), the slide valve (2) including a valve spool (21), the valve spool (21) being movable between a first position and a second position to cut off or communicate the main oil inlet (11) and the main oil outlet (12);
the ball valve (3) is arranged in the valve core (21), and when the valve core (21) is located at the first position, the ball valve (3) can move under the action of oil pressure to communicate the main oil inlet (11) with the main oil outlet (12).
2. The piston cooling nozzle according to claim 1, characterized in that a first oil inlet (211) and a first oil outlet (212) are arranged on the valve core (21), the first oil inlet (211) is communicated with the main oil inlet (11), when the valve core (21) is at the first position, the first oil outlet (212) is communicated with the main oil outlet (12), and the ball valve (3) is used for controlling the opening and closing of the first oil inlet (211).
3. Piston cooling nozzle according to claim 2, characterized in that said slide valve (2) further comprises a valve seat (22), said valve seat (22) being provided with a second oil outlet (221), said second oil outlet (221) being in communication with said main oil outlet (12), said first oil outlet (212) being in communication with said second oil outlet (221) when said spool (21) is in said first position.
4. A piston cooling nozzle according to claim 3, characterised in that a second oil inlet (222) is provided in the valve seat (22), the second oil inlet (222) communicating with both the main oil inlet (11) and the first oil inlet (211).
5. Piston cooling nozzle according to claim 4, characterised in that a third oil outlet (223) is further provided on said valve seat (22), said third oil outlet (223) communicating with said main oil outlet (12); when the oil pressure is larger than the opening pressure of the valve core (21), the valve core (21) can movably communicate the second oil inlet (222) and the third oil outlet (223).
6. Piston cooling nozzle according to claim 5, characterized in that said third oil outlet (223) is located higher than said second oil outlet (221), said second oil outlet (221) being located higher than said total oil outlet (12).
7. Piston cooling nozzle according to claim 5, characterised in that the opening pressure of the ball valve (3) is smaller than the full opening pressure of the valve spool (21).
8. Piston cooling nozzle according to any of claims 1-7, characterized in that the ball valve (3) further comprises a first elastic member (31), and the slide valve (2) further comprises a second elastic member (23), and that one end of the first elastic member (31) is connected to the ball valve (3) and the other end is connected to the spool (21); one end of the second elastic piece (23) is connected with the valve core (21), and the other end of the second elastic piece is connected with the valve seat (22).
9. A piston cooling nozzle according to any one of claims 1-7, characterized in that the piston cooling nozzle further comprises an oil drain (224), the oil drain (224) being provided on a valve seat (22).
10. An engine comprising a piston cooling nozzle according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022210493.5U CN213478467U (en) | 2020-09-30 | 2020-09-30 | Piston cooling nozzle and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022210493.5U CN213478467U (en) | 2020-09-30 | 2020-09-30 | Piston cooling nozzle and engine |
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| Publication Number | Publication Date |
|---|---|
| CN213478467U true CN213478467U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022210493.5U Active CN213478467U (en) | 2020-09-30 | 2020-09-30 | Piston cooling nozzle and engine |
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| CN (1) | CN213478467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592963A (en) * | 2022-03-17 | 2022-06-07 | 潍柴动力股份有限公司 | Piston cooling system monitoring method and device and engine |
-
2020
- 2020-09-30 CN CN202022210493.5U patent/CN213478467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592963A (en) * | 2022-03-17 | 2022-06-07 | 潍柴动力股份有限公司 | Piston cooling system monitoring method and device and engine |
| CN114592963B (en) * | 2022-03-17 | 2023-05-23 | 潍柴动力股份有限公司 | Piston cooling system monitoring method and device and engine |
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