Double-oil-way nozzle structure and nozzle system thereof

A dual oil circuit and nozzle technology, applied in the direction of charging system, fuel injection device, machine/engine, etc., can solve the problems of low atomization quality and low quality of fuel and air mixing, and achieve good results

Pending Publication Date: 2022-04-05
启东通润润滑液压设备有限公司
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AI-Extracted Technical Summary

Problems solved by technology

However, there are some defects in the existing double-oil circuit pressure atomization fuel nozzles. The fuel injection in the main oil circuit is atomized first, and the...
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Method used

In actual application, the auxiliary oil circuit fuel is communicated to the groove 13 by the auxiliary oil pipe 4, and along with the auxiliary oil circuit fuel oil in the groove 13 is gradually filled, the auxiliary oil circuit fuel enters the swirl mechanism to generate swirl, Then it enters the auxiliary nozzle hole 14 and shrinks, so the high-speed swirling flow generates a strong centrifugal force, thereby compressing the liquid film, gradually realizing the liquid film breakup, and then sprays out from the auxiliary nozzle hole 14, and enters the Lafal nozzle 9 to form a small Droplets, the air intake passage can guide the external gas into the auxiliary oil circuit mechanism, flow through the air flow passage, and reach 14 auxiliary injection holes, which can improve the atomization quality of the auxiliary oil circuit fuel, improve the ignition performance of the combustion chamber, and prevent accumulation Carbon, note that the number of splitter barrels 19 inside the groove 13 can be designed to be multiple. Since the fuel in the auxiliary oil circuit in the groove 13 is gradually filled, it is actually injected into the splitter barrel 19 evenly in the form of split flow. At this time, attention should be paid to the split flow No gap can be left between the cylinders 19, between the distributor cylinder 19 and the inner wall of the groove 13, the purpose is to prevent the auxiliary oil circuit fuel from entering between the distributor cylinders 19, between the distributor cylinder 19 and the inner wall of the groove 13 during injection, and then The swirl flow is generated by the swirl plate in the splitter tube 19 and the auxiliary splitter tube 21. Note that the swirl plate is provided with a swirl hole for the fuel to pass through and generate a swirl flow, so as to generate a sw...
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Abstract

The invention discloses a double-oil-way nozzle structure which comprises an oil supply pipe seat and a nozzle seat, a main oil pipe and an auxiliary oil pipe are arranged in the oil supply pipe seat, a main oil way mechanism connected with the main oil pipe is arranged in the nozzle seat, an auxiliary oil way mechanism connected with the auxiliary oil pipe is arranged in the nozzle seat, and the main oil way mechanism and the auxiliary oil way mechanism are arranged in the nozzle seat. The output end of the main oil way mechanism is provided with a radial swirler and an axial swirler, and the output end of the auxiliary oil way mechanism is provided with a Laval nozzle. The beneficial effects are that the swirl plate is provided with the swirl hole used for allowing fuel oil to pass through and generating swirl, the fuel oil generates swirl so as to improve the atomization quality of the fuel oil of the auxiliary oil path, the whole auxiliary fuel oil is differentiated, the swirl effect of the fuel oil is better, ignition of a combustion chamber is more convenient, gas is pressurized by an air pump and enters through an air inlet channel, and the fuel oil atomization effect is improved. And the cyclone mechanism is matched, so that air entering the cyclone mechanism generates cyclone, and the ignition performance generated by subsequent air and fuel oil is better.

Application Domain

Fuel injection apparatusMachines/engines

Technology Topic

PhysicsCombustion chamber +7

Image

  • Double-oil-way nozzle structure and nozzle system thereof
  • Double-oil-way nozzle structure and nozzle system thereof
  • Double-oil-way nozzle structure and nozzle system thereof

Examples

  • Experimental program(6)

Example Embodiment

[0031] Example 1:
[0032] See Figure 1-7 , According to an embodiment of the present invention, a dual oil roller member including a supply tube holder 1 and a nozzle seat 2, and a main oil pipe 3 and a via oil pipe 4 are opened, and the nozzle 2 is inside. A main oil carrier mechanism 5 connected to the main tubing 3 is disposed, and the inner portion of the nozzle seat 2 is disposed with a lilicide mechanism 6 connected to the via oil pipe 4, and the output terminal of the main oil circuit mechanism 5. It is provided with a radial cyclone 7 and an axial cyclone 8, and a Rair nozzle 9 is provided on the output of the via oil mechanism 6, the main oil supply mechanism 5 including a nozzle 2 The annular groove 10 adjacent to the oil supply tube holder 1 and the annular groove 10 is arranged in the circumferential direction of the nozzle 2, and the annular groove 10 is coupled to the main oil pipe 3, and a primary oil is connected to the ring groove 10. The conduit path 11, the output end of the main oil conduit path 11 is provided with a main nozzle 12, which includes one end of the nozzle seat 2 adjacent to the oil supply hosk 1 and with the deputy. The groove 13 is connected in the oil pipe 4, the groove 13 is in the middle of the annular groove 10, and the groove 13 is provided with a sub-blow hole 14, the sub-blow hole 14 and the Rafar nozzle. 9 Internal communication, the groove 13 is provided with a swirl mechanism between the secondary blown holes 14, and the via oil carrier mechanism is connected to the intake passage 15, and the output terminal of the intake passage 15 is connected to the The Lafal nozzle 9 is adjacent to one end of the sub-blow hole 14, and the via oil mechanism 6 is provided with the secondary blow hole 14 and has a mounting chamber for mounting the Rafajar nozzle 9. The outer ring surface of the Rafaur nozzle 9 is joined to the mounting chamber to form an integral structure, and the lacul nozzle 9 includes an injection section 16 and an exit section 17, the sub-blowing 14 Conical body structure, the sub-blowing 14 extends to the receiving section 16 of the Rafar nozzle 9, the outer cone surface of the sub-blower 14 and the inner circumferential space gap of the receiving section 16 With the formation of air flow path 18, between the oil supply hoste 1 and the nozzle seat 2 are connected to each other by a sealing mechanism, and the main oil pipe 3 is provided with a oil filter mechanism in the via oil pipe 4, the sub-blow hole. 14 The outer cone surface is fitted with the receiving section 16 gap to form a gas flow path 18 for gas flow, and a cyclone is provided inside the intake passage 15, and there are several split cylinders inside the groove 13, and The distal tube 19 is open, and the swirl mechanism is a cavity barrel 20 having an internal space having a plurality of sub-splitters 21, the sub-division cartridge 21 and the shunt. The number of cartridges 19 is equal, and the induction of the branch drum 21 and the corresponding branch cylinder 19 are connected by a conducting tube 22, the inner portion of the split cylinder 19 and the in-depth drum 21 has a coaxial arrangement. Swirl.

Example Embodiment

[0033] Example 2:
[0034] Such as Figure 3-4 As shown, the sealing mechanism includes a second cylinder 24 fixed to a first cylinder 23 and a fixing sleeve on the nozzle seat 2, the first cylinder. The 23 diameter is smaller than the diameter of the second cylinder 24, and the first cylinder 23 is inserted into the second cylinder 24, and the inner wall of the first cylinder 23 is attached to a high-temperature first seal 25, The nozzle holder 2 is inserted into the first cylinder 23, and the first sealing ring 25 is wrapped in the outer surface of the nozzle seat 2, the inner wall of the second cylinder 24, has a second seal ring 26, which The second seal ring 26 is wrapped in the outer surface of the first cylinder 23, and the hydraulic tube holder 1 is fixed to the third cylinder 27, and the third cylinder 27 is pasted with a third seal ring 28. The second cylinder 24 is inserted into the third cylinder 27, and the third sealing ring 28 is wrapped in the outer surface of the second cylinder 24, the second cylinder 24 and the third cylinder. 27 is fixed by several screws, and the oil supply tube holder 1 is provided with an anti-screw falling mechanism that matches the screw.
[0035] By the above-described above scheme according to the present invention: When the nozzle seat 2 and the supply tube 1 are mounted, the two is docked, and after the docking, the nozzle seat 2 is inserted into the first cylinder 23, and the nozzle seat 2 is inserted. The outer surface is wrapped by the first seal 25, and then the first cylinder 23 is inserted into the second cylinder 24, and the insertion end of the first cylinder 23 is wrapped in the second seal ring 26, then the nozzle 2 and the supply After the tubal holder 1 is docked, the sealing performance after the installation is good, avoiding the occurrence of oil leakage when oil supply, and the second cylinder 24 is inserted into the third cylinder 27, at this time, The insertion end of the second cylinder 24 is wrapped in the third seal 28, and the last heavy seal is installed, and the third cylinder 27 and the second cylinder 24 are finally fixed by the screw.

Example Embodiment

[0036] Example 3:
[0037] Such as Figure 3-4 As shown, the anti-screw falling mechanism includes a fourth cylinder 29 that is fixed to the supply hoste 1, and the fourth cylinder 29 is provided with a fifth cylinder 30, the fifth The cylinder 30 is sleeved on the third cylinder 27 by a spring mechanism, and the spring mechanism includes a spring 31, and the inner wall of the fourth cylinder 29 is opened, and one end of the spring 31 is fixed in the center. In the spring arrangement groove 32, the spring 31 is fixed to the fifth cylinder 30.
[0038] Through the above-described above scheme of the present invention, the screw is manually extruded, and the spring generates a spring generated, and the fifth cylinder 30 is incorporated into the fourth cylinder 29, at this time It is convenient for the screw to fix the third cylinder 27 and the second cylinder 24, after the fixed, release the fifth cylinder 30, the spring elongation is reset, so the fifth cylinder 30 will be set in the third cylinder. 27 On the outer surface, a better match is on the third cylinder 27, and the final fifth cylinder 30 is wrapped in the design of the screw, which can prevent the screw from falling off.

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Description & Claims & Application Information

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