Diesel engine piston cooling nozzle assembly

Abstract

The utility model relates to the technical field of piston cooling nozzles, and discloses a diesel engine piston cooling nozzle assembly which comprises a valve body, the top of the valve body is fixedly connected with a top fixing block, the middle of the inner wall of the top fixing block is fixedly connected with a sealing device, and the middle of the outer surface of the valve body is sleeved with an outer protective shell. An oil inlet is formed in the bottom of the inner wall of the valve body. The sealing device is arranged to seal the ball valve to prevent a large amount of oil from entering the ball valve, when the internal oil amount is too large, the spring on the sealing device shrinks to enable the oil to enter the ball valve, the oil enters the ball valve through the oil inlet to jack up the ball valve element, the sealing device moves in the jacking process, and therefore the ball valve is prevented from being blocked. The air entering the device enters the valve cavity through the output port and is cooled in the valve cavity, the sealing device is fixedly connected through the mounting groove, and when the interior is blocked or damaged, the sealing device is convenient to disassemble and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of piston cooling nozzles, in particular to a diesel engine piston cooling nozzle assembly. Background Art

[0002] The diesel engine piston cooling nozzle assembly is an important component in the diesel engine. Its function is to cool the piston to reduce the temperature of the piston and improve the reliability and service life of the engine. During the operation of the diesel engine, the piston will be affected by high temperature and high pressure, causing its temperature to rise. If the temperature of the piston is too high, it may cause problems such as engine overheating, increased wear, and even cause engine damage. Therefore, it is very necessary to effectively cool the piston. The piston cooling nozzle assembly cools the piston by spraying coolant (usually water or oil) onto the surface of the piston. The coolant absorbs the heat from the piston during the spraying process, then flows back to the engine's cooling system through the coolant channel, and finally transfers the heat to the radiator for heat dissipation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a diesel engine piston cooling nozzle assembly.

[0004] The utility model is implemented by the following technical scheme: a diesel engine piston cooling nozzle assembly, comprising a valve body, the top of the valve body is fixedly connected to a top fixing block, the middle of the inner wall of the top fixing block is fixedly connected to a sealing device, the middle of the outer surface of the valve body is sleeved with an outer protective shell, the bottom of the inner wall of the valve body is provided with an oil inlet, and the inner wall of the outer protective shell is provided with a valve cavity;

[0005] The sealing device includes a connecting plate, wherein the four corners of the upper surface of the connecting plate are provided with A threaded holes, the middle of the lower surface of the connecting plate is fixedly connected with a spring seat, the bottom of the spring seat is fixedly connected with a spring, the bottom of the spring is fixedly connected with a connecting block, and the middle of the upper surface of the connecting block is fixedly connected with a sleeve.

[0006] Through the above technical solution, the whole device is connected through the valve body, and the oil flows into the interior of the device. The sealing device seals it to prevent a large amount of oil from entering. When the amount of oil inside is too large, the spring on the sealing device contracts to allow the oil to enter the interior of the device.

[0007] As a further improvement of the above solution, a spherical valve core is fixedly connected to the top of the oil inlet, and output ports are provided on both sides of the middle of the inner wall of the valve body.

[0008] Through the above technical solution, oil enters the device through the oil inlet to lift the spherical valve core, and the sealing device moves during the lifting process.

[0009] As a further improvement of the above solution, the output port is connected to the valve cavity, and an oil outlet is provided at the top of one side of the inner wall of the valve cavity.

[0010] Through the above technical solution, the liquid that enters the interior of the device enters the valve cavity through the output port and is cooled in the valve cavity.

[0011] As a further improvement of the above solution, a mounting groove is provided at the top of the top fixing block, and B threaded holes are provided at the four corners of the bottom of the inner wall of the mounting groove. The internal threads of the B threaded holes are connected with cross screws, and the cross screws are adapted to the sealing device.

[0012] Through the above technical solution, the sealing device is fixedly connected through the installation groove, and when there is blockage or damage inside, it is convenient to disassemble and clean it. When disassembly is required, just loosen the cross screw.

[0013] As a further improvement of the above solution, a fixing block is fixedly connected to one side of the outer surface of the outer protective shell, an A output pipe is fixedly connected to the middle of the front side of the fixing block, and the A output pipe is connected to the oil outlet.

[0014] Through the above technical solution, the outer protective shell fixes the A output pipeline, and the cooled oil is output through the A output pipeline.

[0015] As a further improvement of the above solution, one end of the A output pipe is fixedly connected to an A flange, one side of the A flange is fixedly connected to a B flange, and the inner wall of the B flange is fixedly connected to a plurality of bolts.

[0016] Through the above technical solution, the A flange and the B flange are sealed and connected, which is convenient for disassembly and replacement in case of damage. The A flange and the A flange are both provided with matching holes for inserting the bolts inside.

[0017] As a further improvement of the above solution, a plurality of B threaded holes are opened on the front of the A flange, the bolts are matched with the B threaded holes, the other ends of the bolts are threadedly connected with nuts, and the other side of the B flange is fixedly connected with a B output pipe.

[0018] Through the above technical solution, the bolt is inserted into the threaded hole of B, the nut and the bolt are tightly fixed, the sealing of the device is enhanced, and the cooled oil flows out through the B output pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model seals the device by arranging a sealing device to prevent a large amount of oil from entering. When the amount of oil inside is too large, the spring on the sealing device contracts to allow oil to enter the device. The oil enters the device through the oil inlet to lift the spherical valve core. During the lifting process, the sealing device moves along with it, and the oil that enters the device enters the valve cavity through the output port and is cooled in the valve cavity. The sealing device is fixedly connected by the mounting groove, and it is convenient to disassemble and clean it when the interior is blocked or damaged. When disassembly is required, the cross screw is loosened. The outer protective shell fixes the A output pipe, and the cooled oil is output through the A output pipe. The A flange and the B flange are sealed and connected, which is convenient for disassembly and replacement when damage occurs. The A flange and the A flange are both provided with matching holes, and the bolts are sleeved inside, and the bolts are inserted into the B threaded holes, and the nuts and bolts are tightly fixed to enhance the sealing of the device, and the cooled oil flows out through the B output pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the top connection structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the pipeline connection structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the sealing device of the utility model.

[0026] Description of main symbols:

[0027] 1. Valve body; 2. Top fixing block; 3. Sealing device; 301. Connecting plate; 302. A threaded hole; 303. Spring seat; 304. Spring; 305. Sleeve; 306. Connecting block; 4. Outer protective shell; 5. Oil inlet; 6. Spherical valve core; 7. Output port; 8. Valve cavity; 9. Oil outlet; 10. Mounting groove; 11. B threaded hole; 12. Cross screw; 13. Fixing block; 14. A output pipe; 15. A flange; 16. B flange; 17. Bolt; 18. C threaded hole; 19. Nut; 20. B output pipe. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] Example:

[0030] Please combine Figure 1-5 A diesel engine piston cooling nozzle assembly of this embodiment includes a valve body 1, a top fixing block 2 is fixedly connected to the top of the valve body 1, a sealing device 3 is fixedly connected to the middle of the inner wall of the top fixing block 2, an outer protective shell 4 is sleeved in the middle of the outer surface of the valve body 1, an oil inlet 5 is opened at the bottom of the inner wall of the valve body 1, and a valve cavity 8 is opened on the inner wall of the outer protective shell 4;

[0031] The sealing device 3 includes a connecting plate 301, and the four corners of the upper surface of the connecting plate 301 are provided with A threaded holes 302. The middle of the lower surface of the connecting plate 301 is fixedly connected with a spring seat 303, the bottom of the spring seat 303 is fixedly connected with a spring 304, the bottom of the spring 304 is fixedly connected with a connecting block 306, and the middle of the upper surface of the connecting block 306 is fixedly connected with a sleeve 305. The whole device is connected through the valve body 1, and the oil flows into the inside of the device through 5. The sealing device 3 seals it to prevent a large amount of oil from entering. When the amount of oil inside is too large, the spring 304 on the sealing device 3 contracts to allow the oil to enter the inside of the device.

[0032] The top of the oil inlet 5 is fixedly connected with a spherical valve core 6, and both sides of the middle of the inner wall of the valve body 1 are provided with output ports 7. The oil enters the device through the oil inlet 5 to lift the spherical valve core 6, and the sealing device 3 moves along with the lifting process.

[0033] The output port 7 is connected to the valve cavity 8, and an oil outlet 9 is provided on the top of one side of the inner wall of the valve cavity 8. Oil entering the device enters the valve cavity 8 through the output port 7 and is cooled in the valve cavity 8.

[0034] The top of the top fixing block 2 is provided with a mounting groove 10, and the four corners of the bottom of the inner wall of the mounting groove 10 are provided with B threaded holes 11, and the internal threads of the B threaded holes 11 are connected with cross screws 12, and the cross screws 12 are adapted to the sealing device 3. The sealing device 3 is fixedly connected through the mounting groove 10, and it is convenient to disassemble and clean it when it is blocked or damaged inside. When disassembly is required, the cross screws 12 can be loosened.

[0035] A fixing block 13 is fixedly connected to one side of the outer surface of the outer protective shell 4, and an A output pipe 14 is fixedly connected to the middle of the front of the fixing block 13, and the A output pipe 14 is connected to the oil outlet 9. 13 Outer protective shell The outer protective shell 4 fixes the A output pipe 14, and the cooled oil is output through the A output pipe 14.

[0036] One end of the A output pipe 14 is fixedly connected to an A flange 15, one side of the A flange 15 is fixedly connected to a B flange 16, and the inner wall of the B flange 16 is fixedly connected to a plurality of bolts 17. The A flange 15 and the B flange 16 are sealed and connected to each other, so that they can be disassembled and replaced when damaged. Both the A flange 15 and the A flange 15 are provided with matching holes, and the bolts 17 are inserted inside.

[0037] The front of the A flange 15 is provided with several B threaded holes 18, and the bolts 17 are matched with the B threaded holes 18. The other end of the bolts 17 is threadedly connected with the nuts 19, and the other side of the B flange 16 is fixedly connected with the B output pipe 20. The bolts 17 are inserted into the B threaded holes 18, and the nuts 19 are tightly fixed with the bolts 17 to enhance the sealing of the device, and the cooled oil flows out through the B output pipe 20.

[0038] The implementation principle of a diesel engine piston cooling nozzle assembly in the embodiment of the present application is as follows: the whole device is connected through the valve body 1, and oil flows into the inside of the device through 5. The sealing device 3 seals it to prevent a large amount of oil from entering. When the amount of oil inside is too large, the spring 304 on the sealing device 3 contracts to allow the oil to enter the inside of the device. The oil enters the inside of the device through the oil inlet 5 to lift the spherical valve core 6. During the lifting process, the sealing device 3 moves along, and the oil that enters the inside of the device enters the valve cavity 8 through the output port 7 and is cooled in the valve cavity 8. The sealing device 3 is fixedly connected through the mounting groove 10, and the inside When the part is blocked or damaged, it is convenient to disassemble and clean it. When disassembly is required, just loosen the cross screw 12. The outer protective shell 13 and the outer protective shell 4 fix the A output pipe 14, and the cooled oil is output through the A output pipe 14. The A flange 15 and the B flange 16 are sealed and connected, which is convenient for disassembly and replacement when damaged. The A flange 15 and the A flange 15 are both provided with matching holes, and the bolt 17 is sleeved inside, and the bolt 17 is inserted into the B threaded hole 18, and the nut 19 is tightly fixed to the bolt 17 to enhance the sealing of the device. The cooled oil flows out through the B output pipe 20.

[0039] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A diesel engine piston cooling nozzle assembly, characterized in that: It comprises a valve body (1), the top of the valve body (1) is fixedly connected to a top fixing block (2), the middle of the inner wall of the top fixing block (2) is fixedly connected to a sealing device (3), the middle of the outer surface of the valve body (1) is sleeved with an outer protective shell (4), the bottom of the inner wall of the valve body (1) is provided with an oil inlet (5), and the inner wall of the outer protective shell (4) is provided with a valve cavity (8); The sealing device (3) comprises a connecting plate (301), wherein the four corners of the upper surface of the connecting plate (301) are provided with A threaded holes (302), the middle part of the lower surface of the connecting plate (301) is fixedly connected to a spring seat (303), the bottom of the spring seat (303) is fixedly connected to a spring (304), the bottom of the spring (304) is fixedly connected to a connecting block (306), and the middle part of the upper surface of the connecting block (306) is fixedly connected to a sleeve (305).

2. A diesel engine piston cooling nozzle assembly as claimed in claim 1, characterized in that: A spherical valve core (6) is fixedly connected to the top of the oil inlet (5), and output ports (7) are provided on both sides of the middle of the inner wall of the valve body (1).

3. A diesel engine piston cooling nozzle assembly as claimed in claim 2, characterized in that: The output port (7) is connected to the valve cavity (8), and an oil outlet (9) is provided at the top of one side of the inner wall of the valve cavity (8).

4. A diesel engine piston cooling nozzle assembly as claimed in claim 1, characterized in that: The top of the top fixing block (2) is provided with a mounting groove (10), and the four corners of the bottom of the inner wall of the mounting groove (10) are provided with B threaded holes (11), and the internal threads of the B threaded holes (11) are connected with cross screws (12), and the cross screws (12) are compatible with the sealing device (3).

5. A diesel engine piston cooling nozzle assembly as claimed in claim 1, characterized in that: A fixing block (13) is fixedly connected to one side of the outer surface of the outer protective shell (4), an A output pipe (14) is fixedly connected to the middle of the front side of the fixing block (13), and the A output pipe (14) is connected to the oil outlet (9).

6. A diesel engine piston cooling nozzle assembly as claimed in claim 1, characterized in that: One end of the A output pipe (14) is fixedly connected to an A flange (15), one side of the A flange (15) is fixedly connected to a B flange (16), and the inner wall of the B flange (16) is fixedly connected to a plurality of bolts (17).

7. A diesel engine piston cooling nozzle assembly as claimed in claim 6, characterized in that: The front side of the A flange (15) is provided with a plurality of B threaded holes (18), the bolts (17) are matched with the B threaded holes (11), the other end of the bolts (17) is threadedly connected with a nut (19), and the other side of the B flange (16) is fixedly connected with a B output pipe (20).

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