CN104929840A - Nozzle oil supply system - Google Patents
Nozzle oil supply system Download PDFInfo
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- CN104929840A CN104929840A CN201510262517.2A CN201510262517A CN104929840A CN 104929840 A CN104929840 A CN 104929840A CN 201510262517 A CN201510262517 A CN 201510262517A CN 104929840 A CN104929840 A CN 104929840A
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Abstract
The invention discloses a nozzle oil supply system. The nozzle oil supply system comprises a high-pressure fuel supply system for providing high-pressure fuel, a high-pressure gas supply system for providing high-pressure gas, a spraying oil pipe, and a fuel conversion device, wherein the two ends of the spraying oil pipe are respectively connected with a nozzle and the fuel conversion device; the high-pressure fuel supply system is connected with the fuel conversion device, and presses high-pressure fuel, flowing into the fuel conversion device, into the spraying oil pipe under the effect of the fuel conversion device; and the high-pressure gas supply system is communicated with the spraying oil pipe, outwards sprays part fuel in the spraying oil pipe from the nozzle when the high-pressure fuel supply system is closed, and presses the remainder fuel in the spraying oil pipe into the fuel conversion device for outwards flowing. The nozzle oil supply system cannot generate the carbon deposition due to long-time stop of an engine, so that the inspection of the engine before working after the long-time stop is reduced, the fault caused by the blockage of the spraying oil pipe due to the carbon deposition is prevented, and the flight safety is guaranteed.
Description
Technical field
The present invention relates to engine art, especially, relate to a kind of nozzle oil supply system.
Background technique
At present, when the engine is not operating, the excess oil on normal introducing pressurized gas blowing nozzle face and established carbon distribution, thus avoid excess oil formation carbon distribution to cause spray nozzle clogging cause engine failure and affect flight safety.But in the prior art, only introduce the excess oil on pressurized gas blowing nozzle and established carbon distribution, and in the ejecting system of motor, also there is excess oil, when motor is parked for a long time, these excess oil will produce new carbon distribution, cause injection stopping up of oil channel, thus cause engine failure, affect flight safety.
Summary of the invention
The invention provides a kind of nozzle oil supply system, to solve existing oil supply system when motor is parked for a long time, the excess oil in ejecting system produces carbon distribution, thus causes injection stopping up of oil channel, thus causes engine failure, affects the technical problem of flight safety.
The technical solution used in the present invention is as follows:
A kind of nozzle oil supply system, comprises for providing the high pressure fuel supply system of high pressure fuel, for providing the pressurized gas supply system of pressurized gas, spraying oil pipe and fuel oil conversion equipment; The two ends of spraying oil pipe are connected with fuel oil conversion equipment with nozzle respectively; High pressure fuel supply system is connected with fuel oil conversion equipment, to spray in oil pipe by the high pressure fuel press-in flowed in fuel oil conversion equipment under the effect of fuel oil conversion equipment; Pressurized gas supply system is communicated with injection oil pipe, the part fuel oil sprayed in oil pipe is outwards sprayed by nozzle when high pressure fuel supply system is closed, and the backward outer ejection of another part fuel oil press-in fuel oil conversion equipment of simultaneously will spray in oil pipe.
Further, fuel oil conversion equipment comprises fuel oil conversion seat, the first connected oil duct, the second oil duct and the 3rd oil duct is provided with from top to bottom successively in fuel oil conversion seat, first oil duct is communicated with the top of fuel oil conversion seat, and the top of fuel oil conversion seat is provided with the first deformation sheet for sealing the first oil duct, 3rd oil duct is communicated with the bottom of fuel oil conversion seat, and the bottom of fuel oil conversion seat is provided with the second deformation sheet for sealing the 3rd oil duct, the first deformation sheet and the second deformation sheet all can protrude deformation towards the direction that external force applies under the effect of external force; Fuel oil conversion seat offers the fuel inlet entering the first oil duct for the high pressure fuel in high pressure fuel supply system, the first oil return outlet supplying the high pressure fuel in the second oil duct to enter the first fuel outlet in injection oil pipe and outwards flow out for the oil return in the 3rd oil duct; Be provided with the first mangetic core assembly making itself and the second oil duct conducting or partition in first oil duct, be provided with the second mangetic core assembly making itself and the second oil duct conducting or partition in the 3rd oil duct, the second mangetic core assembly is connected with the first mangetic core assembly by push rod; The bottom of fuel oil conversion seat is provided with oil return seat, the end face be connected with the second deformation sheet of oil return seat is provided with receiving groove, receiving groove and the second deformation sheet are enclosed to form the receiving cavity for splendid attire high pressure fuel, fuel oil conversion seat is also provided with the second fuel outlet outwards flowed out for the high pressure fuel in the first oil duct and the fuel oil runner being communicated with the second fuel outlet and receiving cavity, in fuel oil runner, is provided with the throttle valve with upwardly the second mangetic core assembly, the first oil duct being communicated with the second oil duct the boosting of the high pressure fuel of process; The top of fuel oil conversion seat is provided with the oil pressure driving member to promote the first mangetic core assembly slide downward, the second oil duct being communicated with the 3rd oil duct to the first deformation sheet applying external force.
Further, be provided with for supporting the first mangetic core assembly and stoping the first mangetic core assembly to enter the first valve seat of the second oil duct with the joint of the second oil duct in the first oil duct; First mangetic core assembly comprises the first piston parts and movable the first ball valve arranged that slide and arrange, and conflicts with the first deformation sheet and the first ball valve respectively in the two ends of first piston parts.
Further, the first oil duct comprises connected first paragraph and second segment, and the diameter of first paragraph is greater than the diameter of second segment and second segment is connected with the second oil duct, first piston parts comprise the first sleeve and the second sleeve that slip is respectively arranged in first paragraph and second segment, the mounting rod in the first sleeve and the second sleeve is inserted at two ends respectively, first end in insertion first sleeve of mounting rod and the second end inserted in the second sleeve are equipped with stop lug, the first end of mounting rod is set with the first spring, the two ends of the first spring are supported with the end face of the stop lug on the first end of mounting rod and first paragraph respectively, second end of mounting rod is set with the second spring, the two ends of the second spring are supported with the stop lug of the second end of mounting rod and the end face of the second sleeve respectively.
Further, the second valve seat for stoping the second mangetic core assembly to enter the second oil duct is provided with the joint of the second oil duct in the 3rd oil duct; Second mangetic core assembly comprises the second piston element and movable the second ball valve arranged that slide and arrange, and the second ball valve is connected with the first ball valve by push rod, conflicts with the second deformation sheet and the second ball valve respectively in the two ends of the second piston element.
Further, the second piston element comprises the 3rd sleeve that one end open one end is closed, and closed end and the second deformation sheet of the 3rd sleeve are conflicted, and are equiped with the 3rd spring in the 3rd sleeve, and top and second ball valve of the 3rd spring are supported.
Further, be provided with bearing in the second oil duct, the two ends up and down of bearing are supported with the first valve seat and the second valve seat respectively, and the two ends up and down of bearing are communicated with the 3rd oil duct with the first oil duct respectively; Be provided with in bearing and pass and the guide channel led to push rod for push rod, the inwall of bearing is provided with the outlet be communicated with the first fuel outlet.
Further, oil pressure driving member comprises low pressure font, and the two ends up and down of low pressure font are communicated with, and its top is communicated with the low-voltage fuel supply system for supplying low-voltage fuel, and its bottom is connected with the first deformation sheet, and forms closed end with the first deformation sheet.
Further, the two ends of throttle valve lay respectively at fuel oil conversion seat fuel oil runner in and oil return seat fuel oil runner in; First throttle passage and the second section circulation road of connection is provided with in throttle valve, fuel oil flow passage in first throttle passage and fuel oil conversion seat, fuel oil flow passage in second section circulation road and oil return seat, and the diameter of first throttle passage is less than the diameter of second section circulation road.
Further, oil return seat offers the second oil return outlet of outwards flowing out for the oil return in the 3rd oil duct and the oil return runner for being communicated with the first oil return outlet and the second oil return outlet.
The present invention has following beneficial effect:
Nozzle oil supply system of the present invention, when engine work, pressurized gas supply system is closed, and high pressure fuel is pressed in fuel oil conversion equipment by high pressure fuel supply system, and under the effect of fuel oil conversion equipment, the high pressure fuel press-in flowed in fuel oil conversion equipment is sprayed in oil pipe, high pressure fuel is finally outwards sprayed by nozzle; When the engine is not operating, high pressure fuel supply system is closed, and the work of pressurized gas supply system, so that the part fuel oil sprayed in oil pipe is outwards sprayed by nozzle, the backward outer outflow of another part fuel oil press-in fuel oil conversion equipment of simultaneously will spray in oil pipe, and the carbon distribution at nozzle place also can blow down while outwards being sprayed by the fuel oil sprayed in oil pipe by pressurized gas supply system in the lump.Nozzle oil supply system of the present invention, when engine stop works, the excess oil ejection that can will spray in oil pipe, thus injection oil pipe can not produce carbon distribution because motor quits work for a long time, decrease the inspection work before the engine operation after parking for a long time, avoid the fault because carbon distribution causes injection oil pipe blocking to cause, ensure flight safety.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the status architecture schematic diagram of the nozzle oil supply system of preferred embodiment of the present invention when normally working; And
Fig. 2 is the status architecture schematic diagram of the nozzle oil supply system in Fig. 1 when quitting work.
Marginal data
1, high pressure fuel supply system; 2, pressurized gas supply system; 3, oil pipe is sprayed; 4, fuel oil conversion seat; 401, the first oil duct; 402, the second oil duct; 403, the 3rd oil duct; 404, fuel inlet; 405, the first fuel outlet; 406, the first oil return outlet; 407, the second fuel outlet; 408, fuel oil runner; 5, the first deformation sheet; 6, the second deformation sheet; 7, the first mangetic core assembly; 701, the first ball valve; 702, the first sleeve; 703, the second sleeve; 704, mounting rod; 705, the first spring; 706, the second spring; 8, the second mangetic core assembly; 801, the second ball valve; 802, the 3rd sleeve; 803, the 3rd spring; 9, push rod; 11, oil return seat; 111, receiving cavity; 112, the second oil return outlet; 113, oil return runner; 12, throttle valve; 13, oil pressure driving member; 131, low pressure font; 14, the first valve seat; 15, the second valve seat; 16, bearing.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, the preferred embodiments of the present invention provide a kind of nozzle oil supply system, and this nozzle oil supply system comprises for providing the high pressure fuel supply system 1 of high pressure fuel, for providing the pressurized gas supply system 2 of pressurized gas, spraying oil pipe 3 and fuel oil conversion equipment; The two ends of spraying oil pipe 3 are connected with fuel oil conversion equipment with nozzle respectively; High pressure fuel supply system 1 is connected with fuel oil conversion equipment, to spray in oil pipe 3 by the high pressure fuel press-in flowed in fuel oil conversion equipment under the effect of fuel oil conversion equipment; Pressurized gas supply system 2 is communicated with injection oil pipe 3, the part fuel oil sprayed in oil pipe 3 is outwards sprayed by nozzle when high pressure fuel supply system 1 is closed, and the backward outer outflow of another part fuel oil press-in fuel oil conversion equipment of simultaneously will spray in oil pipe 3.Nozzle oil supply system of the present invention, when engine work, pressurized gas supply system 2 is closed, and high pressure fuel is pressed in fuel oil conversion equipment by high pressure fuel supply system 1, and under the effect of fuel oil conversion equipment, the high pressure fuel press-in flowed in fuel oil conversion equipment is sprayed in oil pipe 3, high pressure fuel is finally outwards sprayed by nozzle; When the engine is not operating, high pressure fuel supply system 1 is closed, and pressurized gas supply system 2 works, so that the part fuel oil sprayed in oil pipe 3 is outwards sprayed by nozzle, the backward outer outflow of another part fuel oil press-in fuel oil conversion equipment of simultaneously will spray in oil pipe 3, and the carbon distribution at nozzle place also can blow down while outwards being sprayed by the fuel oil sprayed in oil pipe 3 by pressurized gas supply system 2 in the lump.Nozzle oil supply system of the present invention, when engine stop works, the excess oil ejection that can will spray in oil pipe 3, thus injection oil pipe 3 can not produce carbon distribution because motor quits work for a long time, decrease the inspection work before the engine operation after parking for a long time, avoid blocking because carbon distribution causes spraying oil pipe 3 fault caused, ensure flight safety.
Particularly, in the present invention, fuel oil conversion equipment comprises fuel oil conversion seat 4, the first connected oil duct 401 is provided with from top to bottom successively in fuel oil conversion seat 4, second oil duct 402, and the 3rd oil duct 403, first oil duct 401 is communicated with the top of fuel oil conversion seat 4, 3rd oil duct 403 is communicated with the bottom of fuel oil conversion seat 4, the top of fuel oil conversion seat 4 is provided with the first deformation sheet 5 for sealing the first oil duct 401, the bottom of fuel oil conversion seat 4 is provided with the second deformation sheet 6 for sealing the 3rd oil duct 403, first deformation sheet 5 and the second deformation sheet 6 all can protrude deformation towards the direction that external force applies under the effect of external force, fuel oil conversion seat 4 offers the fuel inlet 404 entering the first oil duct 401 for the high pressure fuel in high pressure fuel supply system 1, the first oil return outlet 406 supplying the high pressure fuel in the second oil duct 402 to enter the first fuel outlet 405 in injection oil pipe 3 and outwards flow out for the oil return in the 3rd oil duct 403, the first mangetic core assembly 7 making the first oil duct 401 and the second oil duct 402 conducting or partition is provided with in first oil duct 401, be provided with in 3rd oil duct 403 and second mangetic core assembly 8, second mangetic core assembly 8 of the 3rd oil duct 403 and the second oil duct 402 conducting or partition is connected with the first mangetic core assembly 7 by push rod 9, the bottom of fuel oil conversion seat 4 is provided with oil return seat 11, the end face be connected with the second deformation sheet 6 of oil return seat 11 is provided with receiving groove, receiving groove and the second deformation sheet 6 are enclosed to form the receiving cavity 111 for splendid attire high pressure fuel, fuel oil conversion seat 4 is also provided with the second fuel outlet 407 outwards flowed out for the high pressure fuel in the first oil duct 401, and be communicated with the fuel oil runner 408 of the second fuel outlet 407 and receiving cavity 111, the throttle valve 12 with upwardly the second mangetic core assembly 8, first oil duct 401 being communicated with the second oil duct 402 boosting of the high pressure fuel of process is provided with in fuel oil runner 408, the top of fuel oil conversion seat 4 is provided with first
Deformation sheet 5 applies the oil pressure driving member 13 that external force makes the second oil duct 402 be communicated with the 3rd oil duct 403 to promote the first mangetic core assembly 7 slide downward.
Alternatively, in the preferred embodiment of the invention, both the first deformation sheet 5 and the second deformation sheet 6 are material and are rubber and have certain thickness sheet rubber.
Further, in the present invention, as depicted in figs. 1 and 2, be provided with for supporting the first mangetic core assembly 7 and stoping the first mangetic core assembly 7 to enter the first valve seat 14 of the second oil duct 402 with the joint of the second oil duct 402 in the first oil duct 401; First mangetic core assembly 7 comprises the first piston parts and movable the first ball valve 701 arranged that slide and arrange, and upper end and the first deformation sheet 5 of first piston parts are conflicted, and its lower end and the first ball valve 701 are conflicted, and the first ball valve 701 and the first valve seat 14 are conflicted.
Alternatively, in the preferred embodiment of the invention, the first oil duct 401 comprises connected first paragraph and second segment, and first paragraph is positioned at the top of second segment and second segment is connected with the second oil duct 402, and the diameter of first paragraph is greater than the diameter of second segment.First piston parts comprise the first sleeve 702 sliding and be arranged in first paragraph, slide the second sleeve 703 be arranged in second segment, the mounting rod 704 in the first sleeve 702 and the second sleeve 703 is inserted at two ends respectively, first end in insertion first sleeve 702 of mounting rod 704 and the second end inserted in the second sleeve 703 are equipped with stop lug, the first end of mounting rod 704 is set with the first spring 705, the two ends of the first spring 705 are supported with the end face of the first paragraph of the stop lug on the first end of mounting rod 704 and the first oil duct 401 respectively, second end of mounting rod 704 is set with the second spring 706, the two ends of the second spring 706 are supported with the stop lug of the second end of mounting rod 704 and the end face of the second sleeve 703 respectively.
In the present invention, as depicted in figs. 1 and 2, the second valve seat 15 for stoping the second mangetic core assembly 8 to enter the second oil duct 402 is provided with in the 3rd oil duct 403 with the joint of the second oil duct 402; Second mangetic core assembly 8 comprises the second piston element and movable the second ball valve 801 arranged that slide and arrange, second ball valve 801 is connected with the first ball valve 701 by push rod 9, conflict with the second deformation sheet 6 and the second ball valve 801 respectively in the two ends of the second piston element, the second ball valve 801 and the second valve seat 15 are conflicted.
Alternatively, in the preferred embodiment of the invention, the second piston element comprises the closed end of the 3rd sleeve the 802, three sleeve 802 closed one end open one end and the second deformation sheet 6 is conflicted, the top and the second ball valve 801 that are equiped with the 3rd spring the 803, three spring 803 in 3rd sleeve 802 are supported.More alternatively, in the present invention, first valve seat 14 is provided with the seal ring in the gap for sealing both contacting points with the first ball valve 701 contacting point, can effectively prevent when the first ball valve 701 contacts with the first valve seat 14 by arranging seal ring, the high pressure fuel in the first oil duct 401 is flowed in the second oil duct 402 by the gap of both contacting points.Same, second valve seat 15 is provided with the seal ring in the gap for sealing both contacting points with the second ball valve 801 contacting point, can effectively prevent when the second ball valve 801 contacts with the second valve seat 15 by arranging seal ring, the fuel oil in the second oil duct 402 is flowed in the 3rd oil duct 403 by the gap of both contacting points.
In the present invention, as depicted in figs. 1 and 2, in the second oil duct 402, be provided with bearing 16, the tubular structure that bearing 16 is communicated with in two ends, the two ends up and down of bearing 16 are supported with the first valve seat 14 and the second valve seat 15 respectively, and the two ends up and down of bearing 16 are communicated with the 3rd oil duct 403 with the first oil duct 401 respectively; The inwall of bearing 16 is provided with the guide block that cardiac prominence wherein goes out, be provided with in this guide block for push rod 9 through and the guide channel that the slip of push rod 9 is led, the inwall of bearing 16 is also provided with the outlet be communicated with the first fuel outlet 405.
In the present invention, as depicted in figs. 1 and 2, oil pressure driving member 13 comprises low pressure font 131, the two ends up and down of low pressure font 131 are communicated with, the top of low pressure font 131 is communicated with the low-voltage fuel supply system (not shown) for supplying low-voltage fuel, the bottom of low pressure font 131 is connected with the first deformation sheet 5, and the bottom of low pressure font 131 and the first deformation sheet 5 form closed end.
In the present invention, as depicted in figs. 1 and 2, the two ends of throttle valve 12 lay respectively at fuel oil conversion seat 4 fuel oil runner 408 in and oil return seat 11 fuel oil runner 408 in; First throttle passage and the second section circulation road of connection is provided with in throttle valve 12, first throttle passage is communicated with the fuel oil runner 408 in fuel oil conversion seat 4, second section circulation road is communicated with the fuel oil runner 408 in oil return seat 11, and the diameter of first throttle passage is less than the diameter of second section circulation road.Diameter due to first throttle passage is less than the diameter of second section circulation road, therefore when the high pressure fuel flowed into by first throttle passage is outwards flowed out by second section circulation road, the pressure of high pressure fuel will raise, thus make the deformation protruding upward of the second deformation sheet 6, and then promotion the second piston element moves up.
In the present invention, as depicted in figs. 1 and 2, oil return seat 11 offers the second oil return outlet 112 of outwards flowing out for the oil return in the 3rd oil duct 403 and the oil return runner 113 for being communicated with the first oil return outlet 406 and the second oil return outlet 112.
In the present invention, as depicted in figs. 1 and 2, high pressure fuel supply system 1 comprises the low-voltage fuel supply system for providing low-voltage fuel, the fuel feed pipe be connected with low-voltage fuel supply system, the other end of fuel feed pipe is connected with fuel inlet 404, be provided with the supercharging part to the low-voltage fuel supercharging passed through in the pipeline of fuel feed pipe, this supercharging part is supercharging part conventional on market.
In the present invention, as depicted in figs. 1 and 2, being provided with the air shooter for conveying high-pressure gas between injection oil pipe 3 and pressurized gas supply system 2, being provided with in the pipeline of this air shooter for controlling pressurized gas supply system 2 and the electrical control member of spraying oil pipe 3 conducting or partition.
The working procedure of nozzle oil supply system of the present invention is described below:
When engine work, as shown in accompanying drawing Fig. 1, the valve opening supercharging part makes high pressure fuel supply system and fuel inlet 404 conducting, and closedown electrical control member makes pressurized gas supply system 2 cut off with injection oil pipe 3 simultaneously.High pressure fuel is by entering in the first oil duct 401 by fuel inlet 404 after supercharging part, first high pressure fuel in first oil duct 401 enters in fuel oil runner 408 by the second fuel outlet 407, and enter after throttle valve 12 in receiving cavity 111, the deformation protruding upward of the second deformation sheet 6 is made to apply external force to the second deformation sheet 6, promotion second piston element and the second ball valve 801 move up by this deformation, and under the effect of push rod 9, promote the first ball valve 701 and first piston parts move up, second ball valve 801 and the second valve seat 15 are supported, and the first ball valve 701 and the first valve seat 14 depart from, thus the second oil duct 402 and the 3rd oil duct 403 are cut off, first oil duct 401 is communicated with the second oil duct 402, high pressure fuel in first oil duct 401 will enter in the second oil duct 402, and entered in injection oil pipe 3 by the second oil duct 402.
When the engine is not operating, as shown in accompanying drawing Fig. 2, close the valve of supercharging part, start electrical control member simultaneously.Low-voltage fuel in low-voltage fuel supply system will enter in low pressure font 131, thus downward active force is applied to the first deformation sheet 5, make the deformation downwards of the first deformation sheet 5 to promote first piston parts and the first ball valve 701 moves down, and under the effect of push rod 9, promote the second ball valve 801 and the second piston element moves down, first ball valve 701 and the first valve seat 14 are conflicted, second ball valve 801 and the second valve seat 15 depart from, thus the first oil duct 401 and the second oil duct 402 are cut off, second oil duct 402 and the 3rd oil duct 403 conducting, pressurized gas in pressurized gas supply system 2 enter and spray in oil pipe 3, thus under the effect of pressurized gas, a part of excess oil sprayed in oil pipe 3 is outwards sprayed by nozzle, another part excess oil is back in the second oil duct 402, enter in the 3rd oil duct 403 again, exporting 406 by the first oil return again enters in oil return runner 113, finally export 112 by the second oil return outwards to flow out, the carbon distribution at nozzle place also can outwards blow down by pressurized gas simultaneously.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a nozzle oil supply system, is characterized in that,
Comprise for providing the high pressure fuel supply system (1) of high pressure fuel, for providing the pressurized gas supply system (2) of pressurized gas, spraying oil pipe (3) and fuel oil conversion equipment;
The two ends of described injection oil pipe (3) are connected with described fuel oil conversion equipment with nozzle respectively;
Described high pressure fuel supply system (1) is connected with described fuel oil conversion equipment, to be pressed in described injection oil pipe (3) by the high pressure fuel flowed in described fuel oil conversion equipment under the effect of described fuel oil conversion equipment;
Described pressurized gas supply system (2) is communicated with described injection oil pipe (3), outwards to be sprayed by described nozzle by the part fuel oil in described injection oil pipe (3) when described high pressure fuel supply system (1) is closed, another part fuel oil in described injection oil pipe (3) is pressed into the backward outer ejection of described fuel oil conversion equipment simultaneously.
2. nozzle oil supply system according to claim 1, is characterized in that,
Described fuel oil conversion equipment comprises fuel oil conversion seat (4), connected the first oil duct (401) is provided with from top to bottom successively in described fuel oil conversion seat (4), second oil duct (402), and the 3rd oil duct (403), described first oil duct (401) is communicated with the top of described fuel oil conversion seat (4), and the top of described fuel oil conversion seat (4) is provided with the first deformation sheet (5) for sealing described first oil duct (401), described 3rd oil duct (403) is communicated with the bottom of described fuel oil conversion seat (4), and the bottom of described fuel oil conversion seat (4) is provided with the second deformation sheet (6) for sealing described 3rd oil duct (403), described first deformation sheet (5) and described second deformation sheet (6) all can protrude deformation towards the direction that external force applies under the effect of external force,
Described fuel oil conversion seat (4) offers the fuel inlet (404) entering described first oil duct (401) for the high pressure fuel in described high pressure fuel supply system (1), the first oil return outlet (406) entering the first fuel outlet (405) in described injection oil pipe (3) for the high pressure fuel in described second oil duct (402) and outwards flow out for the oil return in described 3rd oil duct (403);
The first mangetic core assembly (7) making itself and described second oil duct (402) conducting or partition is provided with in described first oil duct (401), be provided with the second mangetic core assembly (8) making itself and described second oil duct (402) conducting or partition in described 3rd oil duct (403), described second mangetic core assembly (8) is connected with described first mangetic core assembly (7) by push rod (9);
The bottom of described fuel oil conversion seat (4) is provided with oil return seat (11), the end face be connected with described second deformation sheet (6) of described oil return seat (11) is provided with receiving groove, described receiving groove and described second deformation sheet (6) are enclosed to form the receiving cavity (111) for splendid attire high pressure fuel, described fuel oil conversion seat (4) is also provided with the second fuel outlet (407) outwards flowed out for the high pressure fuel in described first oil duct (401), and be communicated with the fuel oil runner (408) of described second fuel outlet (407) and described receiving cavity (111), the throttle valve (12) with upwardly described second mangetic core assembly (8), described first oil duct (401) being communicated with described second oil duct (402) boosting of the high pressure fuel of process is provided with in described fuel oil runner (408),
The top of described fuel oil conversion seat (4) is provided with the oil pressure driving member (13) to promote described first mangetic core assembly (7) slide downward, described second oil duct (402) being communicated with described 3rd oil duct (403) to described first deformation sheet (5) applying external force.
3. nozzle oil supply system according to claim 2, is characterized in that,
Be provided with for supporting described first mangetic core assembly (7) and stoping described first mangetic core assembly (7) to enter first valve seat (14) of described second oil duct (402) with the joint of described second oil duct (402) in described first oil duct (401);
Described first mangetic core assembly (7) comprises the first piston parts and movable the first ball valve (701) arranged that slide and arrange, and conflicts with described first deformation sheet (5) and described first ball valve (701) respectively in the two ends of described first piston parts.
4. nozzle oil supply system according to claim 3, is characterized in that,
Described first oil duct (401) comprises connected first paragraph and second segment, and the diameter of described first paragraph is greater than the diameter of described second segment and described second segment is connected with described second oil duct (402);
Described first piston parts comprise the first sleeve (702) and the second sleeve (703) that slip is respectively arranged in described first paragraph and described second segment, the mounting rod (704) in described first sleeve (702) and described second sleeve (703) is inserted at two ends respectively, first end in described first sleeve of the insertion (702) of described mounting rod (704) and the second end inserted in described second sleeve (703) are equipped with stop lug, the first end of described mounting rod (704) is set with the first spring (705), the two ends of described first spring (705) are supported with the end face of the described stop lug on the first end of described mounting rod (704) and described first paragraph respectively, second end of described mounting rod (704) is set with the second spring (706), the two ends of described second spring (706) are supported with the described stop lug of the second end of described mounting rod (704) and the end face of described second sleeve (703) respectively.
5. nozzle oil supply system according to claim 3, is characterized in that,
The second valve seat (15) for stoping described second mangetic core assembly (8) to enter described second oil duct (402) is provided with the joint of described second oil duct (402) in described 3rd oil duct (403);
Described second mangetic core assembly (8) comprises the second piston element and movable the second ball valve (801) arranged that slide and arrange, described second ball valve (801) is connected with described first ball valve (701) by described push rod (9), conflicts with described second deformation sheet (6) and described second ball valve (801) respectively in the two ends of described second piston element.
6. nozzle oil supply system according to claim 5, is characterized in that,
Described second piston element comprises the 3rd sleeve (802) that one end open one end is closed, closed end and the described second deformation sheet (6) of described 3rd sleeve (802) are conflicted, be equiped with the 3rd spring (803) in described 3rd sleeve (802), top and described second ball valve (801) of described 3rd spring (803) are supported.
7. nozzle oil supply system according to claim 6, is characterized in that,
Bearing (16) is provided with in described second oil duct (402), the two ends up and down of described bearing (16) are supported with described first valve seat (14) and described second valve seat (15) respectively, and the two ends up and down of described bearing (16) are communicated with described 3rd oil duct (403) with described first oil duct (401) respectively;
Be provided with in described bearing (16) and pass and the guide channel led to described push rod (9) for described push rod (9), the inwall of described bearing (16) is provided with the outlet be communicated with described first fuel outlet (405).
8. nozzle oil supply system according to claim 2, is characterized in that,
Described oil pressure driving member (13) comprises low pressure font (131), the two ends up and down of described low pressure font (131) are communicated with, its top is communicated with the low-voltage fuel supply system for supplying low-voltage fuel, its bottom is connected with described first deformation sheet (5), and forms closed end with described first deformation sheet (5).
9. nozzle oil supply system according to claim 2, is characterized in that,
In the described fuel oil runner (408) that the two ends of described throttle valve (12) lay respectively at described fuel oil conversion seat (4) and in the described fuel oil runner (408) of described oil return seat (11);
First throttle passage and the second section circulation road of connection is provided with in described throttle valve (12), described first throttle passage is communicated with the described fuel oil runner (408) in described fuel oil conversion seat (4), described second section circulation road is communicated with the described fuel oil runner (408) in described oil return seat (11), and the diameter of described first throttle passage is less than the diameter of described second section circulation road.
10. nozzle oil supply system according to claim 2, is characterized in that,
Described oil return seat (11) offers second oil return outlet (112) of outwards flowing out for the oil return in described 3rd oil duct (403) and the oil return runner (113) exporting (406) and described second oil return outlet (112) for being communicated with described first oil return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262517.2A CN104929840B (en) | 2015-05-21 | 2015-05-21 | Nozzle oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262517.2A CN104929840B (en) | 2015-05-21 | 2015-05-21 | Nozzle oil supply system |
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| CN104929840B CN104929840B (en) | 2017-09-19 |
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| CN112177825A (en) * | 2020-10-20 | 2021-01-05 | 广东沛宇***技术有限公司 | Methanol fuel injector structure |
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| Publication number | Publication date |
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| CN104929840B (en) | 2017-09-19 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |