CN110906030A - Oil inlet control electromagnetic valve suitable for diesel generating set - Google Patents
Oil inlet control electromagnetic valve suitable for diesel generating set Download PDFInfo
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- CN110906030A CN110906030A CN201911396831.4A CN201911396831A CN110906030A CN 110906030 A CN110906030 A CN 110906030A CN 201911396831 A CN201911396831 A CN 201911396831A CN 110906030 A CN110906030 A CN 110906030A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 239000003921 oil Substances 0.000 description 132
- 239000002283 diesel fuel Substances 0.000 description 36
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an oil inlet control electromagnetic valve suitable for a diesel generating set, which comprises a valve body, wherein a first valve cavity and a second valve cavity are respectively arranged in the valve body, an inlet of the first valve cavity is connected with a first oil inlet channel, one oil outlet of the first valve cavity is connected with a first inlet of a third oil outlet channel, a second inlet of the third oil outlet channel is communicated with a second oil inlet channel through the second valve cavity, the other oil outlet of the first valve cavity is communicated with the second oil outlet channel, and an oil-water separator is arranged between the second oil inlet channel and the second oil outlet channel. This solenoid valve can realize the function of three switch combined action, compares three switch of simultaneous control, and the convenience that this solenoid valve of control can be more is simple moreover. Meanwhile, the volume is small, the occupation of the space where the diesel generator set is located is effectively reduced, and the saved space can be used for installing other parts.
Description
Technical Field
The invention relates to an electromagnetic valve, in particular to an oil inlet control electromagnetic valve suitable for a diesel generating set.
Background
Diesel oil in a diesel generating set is directly sprayed into a cylinder at high pressure for combustion, a diesel oil supply system comprises a high-pressure oil pump and an oil sprayer, a plunger device of the oil pump, an oil outlet valve device and a needle valve device of the oil sprayer are all very precise matching parts, and if the fuel oil contains impurities or water, the precise matching parts are quickly worn and even blocked, so that the requirements on the filtering precision and the oil-water separation of the fuel oil are higher. Generally, diesel oil is stored in a large amount under the condition of using a diesel generating set, the diesel oil can be placed in a container for a long time, and water vapor and impurities in air can inevitably enter the diesel oil, so that the diesel oil contains the impurities.
Before the diesel generating set works, firstly, diesel oil needs to be added into an oil cylinder in the diesel engine, the diesel oil in the oil cylinder passes through a filter, the filter works on the filter, and the water content in the diesel oil is detected. If the diesel contains no water, the diesel directly enters a high-pressure oil pump and then enters a combustion chamber; if the diesel contains water, the diesel firstly enters an oil-water separator for separation, then enters a high-pressure oil pump and then enters a combustion chamber. The whole diesel oil treatment process needs to arrange a first switch on a pipeline which does not pass through the oil-water separator, arrange a second switch at the input end of the oil-water separator and arrange a third switch at the output end of the oil-water separator. Therefore, the process needs to control the three switches simultaneously, so that not only are the components of the diesel generating set diversified, but also the control of the pipeline is inconvenient, and the operation load of the diesel generating set is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an oil inlet control electromagnetic valve suitable for a diesel generating set.
The purpose of the invention is realized by the following technical scheme:
the oil inlet control electromagnetic valve suitable for the diesel generating set comprises a valve body, wherein a first valve cavity and a second valve cavity are respectively arranged in the valve body, an inlet of the first valve cavity is connected with a first oil inlet channel, one oil outlet of the first valve cavity is connected with a first inlet of a third oil outlet channel, a second inlet of the third oil outlet channel is communicated with a second oil inlet channel through the second valve cavity, the other oil outlet of the first valve cavity is communicated with the second oil outlet channel, and an oil-water separator is arranged between the second oil inlet channel and the second oil outlet channel;
a first valve cover is arranged on the upper side of the first valve cavity, a valve rod capable of moving up and down in a reciprocating mode is arranged inside the first valve cavity, the valve rod is matched with a first through hole in the first valve cover, an annular stress bulge is arranged on the valve rod, a second through hole coaxial with the first through hole is arranged on the lower side of the first valve cover, a first reset assembly is arranged on the outer side of the valve rod, the upper end of the first reset assembly is connected with the bottom of the second through hole, the lower end of the first reset assembly is connected with the stress bulge, two first valve cores with elasticity are further arranged on the valve rod, and the first valve cores are respectively matched with two oil outlets of the first valve cavity;
the upper side of the second valve cavity is provided with a third oil outlet channel, the lower side of the second valve cavity is provided with a second valve cover provided with a second oil inlet channel, an oil outlet end of the second oil inlet channel is provided with a second valve core capable of moving up and down, the lower side of the second valve core is matched with a port at the outlet end of the second oil inlet channel, a guide rod is fixedly connected onto the upper side end face of the second valve core, the guide rod is matched with a guide hole in the pipe wall of the third oil outlet channel, a second reset assembly is arranged on the outer side of the guide rod, the upper side of the second reset assembly is connected with a boss in the pipe wall of the third oil outlet channel, the lower side of the second reset assembly is connected with the upper side end face of the second valve core, oil passing through holes are formed in two sides of the guide hole, and are distributed along the axial direction of the.
Further, a first sealing ring is arranged between the valve body and the first valve cover; a second sealing ring is arranged between the first valve cover and the valve rod; a third sealing ring is arranged between the valve body and the second valve cover; and a fourth sealing ring is arranged between the second valve cover and the second valve core.
Further, a sealing end cover is arranged on the upper side of the second sealing ring.
Further, the first reset assembly and the second reset assembly are both reset springs.
Further, the second reset component is a pagoda-shaped reset spring.
Further, first case is frustum form case, and the major diameter end has seted up the round recess, two oil-outs of first valve pocket set up to leak hopper-shaped, and the diameter of the last minor diameter end of frustum form case is greater than the diameter of the little diameter end of the oil outlet that leaks hopper-shaped, and the opening inclination of the case that leaks hopper-shaped slightly is greater than the opening inclination of the oil-out that leaks hopper-shaped.
Furthermore, the second valve core is a round-head valve core with the upper end being a plane and the lower end being a ball.
Further, the upside tip of valve rod is provided with moves the iron core the upside of moving the iron core is provided with quiet iron core, and the outside of iron core is provided with the coil, the input of coil is provided with the power input end that links to each other with the output of power, the outside of coil is provided with the shell, the shell with first valve gap upside plane fixed connection.
Furthermore, the two oil outlet channels vertically arranged in the first valve cavity are respectively a first oil outlet channel arranged on the upper side of the first valve core and a second oil outlet channel arranged on the lower side of the first valve core.
Furthermore, the oil inlet of the first oil inlet channel is connected with the oil outlet of the filter, the oil outlet of the second oil outlet channel is connected with the oil inlet of the oil-water separator, the oil inlet of the second oil inlet channel is connected with the oil outlet of the oil-water separator, and the oil outlet of the third oil outlet channel is connected with the oil inlet of the high-pressure oil pump.
The invention has the beneficial effects that:
1) when no water is detected in the diesel oil, the electromagnetic valve is not required to be controlled, the diesel oil directly enters from the first oil inlet channel, passes through the first oil outlet channel and then exits from the third oil outlet channel; when water in the diesel oil is detected, the diesel oil enters from the first oil inlet channel, the valve rod in the electromagnetic valve needs to be controlled to move upwards, the diesel oil enters the oil-water separator from the second oil outlet channel on the lower side of the first valve cavity, then passes through the second oil inlet channel, the second valve core moves upwards under the pressure action of the diesel oil, the diesel oil smoothly enters the second valve cavity, and the diesel oil exits from the third oil outlet channel because the first oil outlet channel is closed. Therefore, the electromagnetic valve can realize the function of the combined action of the three switches, and is more convenient and simple to control compared with the electromagnetic valve which controls the three switches simultaneously.
2) This solenoid valve only need control a valve rod reciprocate can, compare with three solenoid valves of simultaneous control, reduce two-thirds to the consumption of electricity, the effectual cost of having practiced thrift.
3) The electromagnetic valve is small in size, effectively reduces occupation of the space where the diesel generating set is located, and can be used for installing other parts in the saved space.
4) The diameter of the smaller end of the funnel-shaped valve core is larger than that of the smaller end of the funnel-shaped oil outlet, the inclination angle of the funnel-shaped valve core is slightly larger than that of the funnel-shaped oil outlet, when oil is conveyed, the whole side wall of the valve core is in close contact with the wall of the oil outlet, the length of a sealing line is prolonged, the sealing area is enlarged, and the sealing effect is better.
Drawings
FIG. 1 is a schematic diagram of a prior art diesel fuel treatment process;
FIG. 2 is a schematic structural diagram of a solenoid valve without oil-water separation;
FIG. 3 is a schematic structural diagram of an electromagnetic valve requiring oil-water separation;
FIG. 4 is a front view of the first valve core;
in the figure, 1-a valve body, 2-a first valve cavity, 3-a second valve cavity, 4-a first valve cover, 5-a valve rod, 6-a stress bulge, 7-a first through hole, 8-a second through hole, 9-a first reset component, 10-a first valve core, 11-a first oil inlet channel, 12-a third oil outlet channel, 13-a second oil inlet channel, 14-a second valve cover, 15-a second valve core, 16-a guide rod, 17-a guide hole, 18-a second reset component, 19-an oil through hole, 20-a first sealing ring, 21-a second sealing ring, 22-a third sealing ring, 23-a fourth sealing ring, 24-a sealing end cover, 25-a groove, 26-a movable iron core, 27-a coil and 28-a static iron core, 29-a first oil outlet channel, 30-a second oil outlet channel, 31-an oil cylinder, 32-a filter, 33-an oil-water analyzer, 34-an oil-water separator, 35-a first switch, 36-a second switch, 37-a third switch, 38-a high-pressure oil pump, 39-a combustion chamber, 40-a power supply input end and 41-a shell.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise expressly specified or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides a technical solution:
when the diesel generating set works, diesel oil in an oil cylinder 31 in the diesel engine is filtered through a filter 32, an oil-water analyzer 33 is arranged on the filter 32, and the oil-water analyzer 33 detects the water content in the diesel oil. If the oil-water analyzer 33 detects that no water is contained in the diesel oil, the diesel oil directly enters the high-pressure oil pump 38 after passing through the first switch 35, and then enters the combustion chamber 39, in the process, the first switch 34 is opened, and the second switch 36 and the third switch 37 are both closed; if the diesel oil of the oil-water analyzer 33 contains water, the diesel oil enters the oil-water separator 34 through the second switch 36 for separation, then the diesel oil can enter the high-pressure oil pump 38 through the third switch 37, and finally the diesel oil enters the combustion chamber 39, in the process, the first switch 34 is closed, and the second switch 36 and the third switch 37 are both opened. As shown in fig. 1, the dashed box represents the replaceable portion of the solenoid valve.
The oil inlet control electromagnetic valve suitable for the diesel generating set comprises a valve body 1, a first valve cavity 2 and a second valve cavity 3 are respectively arranged inside the valve body 1, an inlet of the first valve cavity 2 is connected with a first oil inlet channel 11, one oil outlet of the first valve cavity 2 is connected with a first inlet of a third oil outlet channel 12, a second inlet of the third oil outlet channel 12 is communicated with a second oil inlet channel 13 through a second valve cavity 3, the other oil outlet of the first valve cavity 2 is communicated with a second oil outlet channel 30, and an oil-water separator 34 is arranged between the second oil inlet channel 13 and the second oil outlet channel 30.
A first valve cover 4 is arranged on the upper side of the first valve cavity 2, a valve rod 5 capable of reciprocating up and down is arranged in the first valve cavity 2, the valve rod 5 is matched with a first through hole 7 on the first valve cover 4, an annular stress bulge 6 is arranged on the valve rod 5, a second through hole 8 coaxial with the first through hole 7 is formed in the lower side of the first valve cover 4, a first resetting component 9 is arranged on the outer side of the valve rod 5, the upper end of the first resetting component 9 is connected with the bottom of the second through hole 8, the lower end of the valve rod is connected with the stress bulge 6, two first valve cores 10 with elasticity are arranged on the valve rod 5, the first valve core 10 is respectively matched with the inlet ends of two oil outlet channels which are vertically arranged, the left side of the first valve core 10 is provided with a first oil inlet channel 11, the outlet end of the oil outlet passage at the inner upper side of the first valve cavity 2 is connected with the inlet end of the second valve cavity 3. The two oil outlet channels vertically arranged in the first valve cavity 2 are respectively a first oil outlet channel 29 arranged on the upper side of the first valve core 10 and a second oil outlet channel 30 arranged on the lower side of the first valve core 10.
A third oil outlet channel 12 is arranged at the upper side of the second valve cavity 3, a second valve cover 14 with a second oil inlet channel 13 is arranged at the lower side of the second valve cavity, the oil outlet end of the second oil inlet channel 13 is provided with a second valve core 15 which can move up and down, the lower side of the second valve core 15 is matched with the port of the outlet end of the second oil inlet channel 13, a guide rod 16 is fixedly connected to the upper end surface of the second valve spool 15, the guide rod 16 is matched with a guide hole 17 on the pipe wall of the third oil outlet channel 12, a second reset component 18 is arranged on the outer side of the guide rod 16, the upper side of the second reset component 18 is connected with a boss on the pipe wall of the third oil outlet channel 12, the lower side of the third valve core is connected with the upper end face of the second valve core 15, oil through holes 19 are formed in the two sides of the guide hole 17, and the oil through holes 19 are distributed along the axial direction of the third oil outlet channel 12.
Preferably, a first sealing ring 20 is arranged between the valve body 1 and the first valve cover 4, and a sealing end cover 24 is arranged on the upper side of the second sealing ring 21; a second sealing ring 21 is arranged between the first valve cover 4 and the valve rod 5; a third sealing ring 22 is arranged between the valve body 1 and the second valve cover 14; a fourth sealing ring 23 is arranged between the second valve cover 14 and the second valve core 15. The four sealing rings can completely prevent the electromagnetic valve from leaking oil, and the second valve core 15 is a round-head valve core with a plane upper end and a spherical lower end.
Preferably, the first return assembly 9 and the second return assembly 18 are both return springs. The second return component 18 is a tower-type return spring. When the second oil inlet channel 13 is used for oil transportation, the second valve spool 15 only needs to move a small distance, when the spring is compressed, the pagoda-type return spring can be contracted by a circle, the pagoda-type return spring can be compressed on a plane to the maximum extent, the compression stroke is large, and the flow rate of the valve is increased in a limited space. The bulge is arranged on the outer side of the pagoda-shaped return spring, so that the oil is prevented from being blocked on the oil through hole 19 when the spring is compressed, the oil delivery is prevented, and the size of the whole electromagnetic valve is reduced while the oil delivery is increased.
Preferably, the first valve core 10 is a frustum-shaped valve core, the large-diameter end of the first valve core is provided with a circle of groove 25, the two oil outlets of the first valve cavity 2 are arranged in a funnel shape, the diameter of the small-diameter end of the frustum-shaped valve core is larger than that of the small-diameter end of the funnel-shaped oil outlet, and the opening inclination of the funnel-shaped valve core is slightly larger than that of the funnel-shaped oil outlet. The groove 25 can increase the elastic function of the first valve core 10, and when oil is transported, the whole side wall of the valve core is in close contact with the wall of the oil outlet, so that the length of a sealing line is prolonged, the sealing area is enlarged, and the sealing effect is better.
Preferably, the upper end of the valve rod 5 is provided with a movable iron core 26, the upper side of the movable iron core 26 is provided with a stationary iron core 28, the outer side of the iron core is provided with a coil 27, the input end of the coil 27 is provided with a power input terminal 40 connected with the output end of a power supply, the outer side of the coil 27 is provided with a shell 41, and the shell 41 is fixedly connected with the upper side plane of the first valve cover 4. The power input end 40 is connected with a 220V alternating current power supply, when 220V alternating current is introduced into the coil 27, an electromagnetic field is generated, the magnetized static iron core 28 and the magnetized movable iron core 26 generate suction force, the suction force is larger than other force acting on the valve rod 5, the movable iron core 26 moves upwards under the action of force, and meanwhile, the valve rod 5 is driven to move upwards; when the coil 27 is de-energized, the magnetism on the stationary core 28 disappears, the resulting force disappears and the valve stem 5 moves downwardly under the action of the first reset assembly 9.
Preferably, the oil inlet of the first oil inlet channel 11 is connected to the oil outlet of the filter 32, the oil outlet of the second oil outlet channel 30 is connected to the oil inlet of the oil-water separator 34, the oil inlet of the second oil inlet channel 13 is connected to the oil outlet of the oil-water separator 34, and the oil outlet of the third oil outlet channel 12 is connected to the oil inlet of the high-pressure oil pump 38. The control is carried out by using electric power, the on-off of the coil 27 is controlled by an instruction module arranged on the oil-water analyzer 33, when no water is detected in the diesel oil, the coil 27 is not required to be controlled to be electrified, the diesel oil directly enters from the first oil inlet channel 11, passes through the first oil outlet channel 29 and then exits from the third oil outlet channel 12; when water in the diesel oil is detected, the diesel oil enters from the first oil inlet channel 11, the control coil 27 is required to be electrified, the valve rod 5 moves upwards, the diesel oil enters the oil-water separator 34 from the second oil outlet channel 30 on the lower side of the first valve cavity 2, then passes through the second oil inlet channel 13, the second valve core 15 moves upwards under the pressure action of the diesel oil, the diesel oil smoothly enters the second valve cavity 3, and the first oil outlet channel is closed, so that the diesel oil passes through the oil through hole 19 and then exits from the third oil outlet channel 12. The whole process is very convenient and simple to control, and the oil passing efficiency of the diesel oil is improved.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. Oil feed control solenoid valve suitable for diesel generating set, including valve body (1), its characterized in that: a first valve cavity (2) and a second valve cavity (3) are respectively arranged in the valve body (1), an inlet of the first valve cavity (2) is connected with a first oil inlet channel (11), one oil outlet of the first valve cavity (2) is connected with a first inlet of a third oil outlet channel (12), a second inlet of the third oil outlet channel (12) is communicated with a second oil inlet channel (13) through the second valve cavity (3), the other oil outlet of the first valve cavity (2) is communicated with a second oil outlet channel (30), and an oil-water separator (34) is arranged between the second oil inlet channel (13) and the second oil outlet channel (30);
a first valve cover (4) is arranged on the upper side of the first valve cavity (2), a valve rod (5) capable of reciprocating up and down is arranged in the first valve cavity (2), and the valve rod (5) is matched with a first through hole (7) on the first valve cover (4), an annular stress bulge (6) is arranged on the valve rod (5), a second through hole (8) which is coaxial with the first through hole (7) is arranged on the lower side of the first valve cover (4), a first resetting component (9) is arranged on the outer side of the valve rod (5), the upper end of the first resetting component (9) is connected with the bottom of the second through hole (8), the lower end of the valve rod is connected with the stress bulge (6), two elastic first valve cores (10) are arranged on the valve rod (5), the first valve core (10) is respectively matched with two oil outlets of the first valve cavity (2);
a third oil outlet channel (12) is arranged on the upper side of the second valve cavity (3), a second valve cover (14) provided with a second oil inlet channel (13) is arranged on the lower side of the third valve cavity, a second valve core (15) capable of moving up and down is arranged at the oil outlet end of the second oil inlet channel (13), the lower side of the second valve core (15) is matched with a port of the outlet end of the second oil inlet channel (13), a guide rod (16) is fixedly connected to the upper side end face of the second valve core (15), the guide rod (16) is matched with a guide hole (17) on the pipe wall of the third oil outlet channel (12), a second resetting component (18) is arranged on the outer side of the guide rod (16), the upper side of the second resetting component (18) is connected with a boss on the pipe wall of the third oil outlet channel (12), and the lower side of the second resetting component is connected with the upper side end face of the second valve core (15, oil through holes (19) are formed in the two sides of the guide hole (17), and the oil through holes (19) are distributed along the axial direction of the third oil outlet channel (12).
2. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: a first sealing ring (20) is arranged between the valve body (1) and the first valve cover (4); a second sealing ring (21) is arranged between the first valve cover (4) and the valve rod (5); a third sealing ring (22) is arranged between the valve body (1) and the second valve cover (14); and a fourth sealing ring (23) is arranged between the second valve cover (14) and the second valve core (15).
3. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 2, characterized in that: and a sealing end cover (24) is arranged on the upper side of the second sealing ring (21).
4. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: the first reset assembly (9) and the second reset assembly (18) are both reset springs.
5. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 4, characterized in that: the second reset component (18) is a pagoda-shaped reset spring.
6. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: first case (10) are frustum form case, and major diameter end has seted up round recess (25), two oil-outs of first valve pocket (2) set up to leak hopper-shaped, and the diameter of the last minor diameter end of frustum form case is greater than the diameter of leaking hopper-shaped oil outlet minor diameter end, and leaks hopper-shaped case's opening inclination slightly and is greater than the opening inclination of leaking hopper-shaped oil-out.
7. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: the second valve core (15) is a round-head valve core with the upper end being a plane and the lower end being a ball.
8. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: the upside tip of valve rod (5) is provided with movable iron core (26), the upside of movable iron core (26) is provided with quiet iron core (28), and the iron core outside is provided with coil (27), the input of coil (27) is provided with power input end (40) that link to each other with the output of power, the outside of coil (27) is provided with shell (41), shell (41) with first valve gap (4) upside plane fixed connection.
9. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 1, characterized in that: the two oil outlet channels are vertically arranged in the first valve cavity (2), and are respectively a first oil outlet channel (29) arranged on the upper side of the first valve core (10) and a second oil outlet channel (30) arranged on the lower side of the first valve core (10).
10. The oil feed control electromagnetic valve suitable for the diesel generating set according to claim 9, characterized in that: the oil inlet of the first oil inlet channel (11) is connected with the oil outlet of the filter (32), the oil outlet of the second oil outlet channel (30) is connected with the oil inlet of the oil-water separator (34), the oil inlet of the second oil inlet channel (13) is connected with the oil outlet of the oil-water separator (34), and the oil outlet of the third oil outlet channel (12) is connected with the oil inlet of the high-pressure oil pump (38).
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| CN110906030B (en) | 2024-05-14 |
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