CN212898761U - Gasoline injection nozzle with porous injection - Google Patents

Abstract

The utility model discloses a porous petrol fuel sprayer that sprays, including petrol fuel sprayer body, be equipped with the check valve on the inlet channel, can keep the residual pressure in the oil chamber, produce and influence normal injection in order to prevent the bubble when the temperature risees, through setting up the filter screen, guaranteed that only the fuel through the filter screen can reach valve body and disk seat complex position, avoid the condition that the granule impurity that exists causes the influence to its normal work in the fuel, the practicality is big, through setting up the backward flow structure, the remaining liquid that produces behind the oil spout, through the inside of back taper platform landing to guiding gutter, the guiding gutter caves in to both sides hollow, make remaining liquid enter into in the guiding pipe by the water conservancy diversion hole, and then enter into the return pipe, the deposit of carbon ash has been reduced, the condition of preventing to take place the jam, the resource of retrieving can recycle, reduce the waste of resource.

Description

Gasoline injection nozzle with porous injection

Technical Field

The utility model relates to the technical field of auto-parts, specifically be a petrol fuel sprayer of porous injection.

Background

The gasoline injector injects fuel in an atomized form into an intake manifold or directly into a cylinder. The higher the atomization degree is, the higher the combustion efficiency of the fuel is, the fuel economy is improved, and the dynamic property of the automobile is also improved. The performance of an automobile engine is determined by the combustion mode, which is determined by the fuel injection nozzle. Along with the stricter requirements of environmental protection laws and regulations on the exhaust emission of automobiles, the performance of a gasoline injector is also continuously improved. The gasoline injector is a solenoid valve mechanism, which uses a coil to magnetize the upper connecting rod and the valve core on the ball valve rapidly, and uses magnetic force to pull up the ball valve rapidly, so as to conduct the internal oil path and realize the oil injection function of the gasoline injector.

The existing oil nozzle is complex in structure, high in manufacturing cost and poor in using effect, and in the working process, oil is not sufficiently combusted, so that certain oil is remained in the oil nozzle, after the oil nozzle works for a long time, the oil is easily accumulated, carbon ash is accumulated, the oil nozzle is easily blocked, and the use is influenced.

To above-mentioned problem, for reduce cost, improvement availability factor, reduce the condition of jam, the utility model provides a porous petrol fuel sprayer who sprays.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a porous petrol fuel sprayer that sprays has with low costs, the high and big advantage of practicality of availability factor, has solved the problem among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a porous petrol fuel sprayer that sprays, includes petrol fuel sprayer body, petrol fuel sprayer body includes access way, elastic component, solenoid, valve rod, oil feed structure, disk seat, valve gap, orifice plate and backflow structure, and the elastic component sets up the lower extreme at access way, and the tip and the valve rod of elastic component are connected, and solenoid sets up the inner chamber at petrol fuel sprayer body, and the oil feed structure runs through the inner chamber of petrol fuel sprayer body and is connected with the disk seat, and the disk seat passes through end connection with the valve gap, and the valve gap is connected with the orifice plate, and backflow structure communicates with each other with the valve gap connection.

Further, the oil inlet structure comprises an oil inlet pipe joint, a filter screen, a gap filter element and an oil duct, two ends of the gap filter element are respectively connected with the oil inlet pipe joint and the oil duct, and the filter screen is arranged in the gap filter element.

Further, the backflow structure comprises a backflow pipe, a flow guide sheet, a flow guide groove, an inverted cone platform and a flow guide hole, the flow guide sheet is arranged on the valve cover, the inverted cone platform is arranged on the surface of the bottom end of the flow guide sheet, the flow guide groove, the inverted cone platform and the flow guide hole are formed between the inverted cone platform and the surface of the bottom end of the flow guide sheet, the backflow pipe passes through the flow guide pipe, the flow guide hole is formed in the flow guide sheet, and the flow guide hole.

Furthermore, a one-way valve is arranged on the inlet channel.

Furthermore, the magnetism isolating ring is arranged on the outer side of the magnetic induction part of the valve rod.

Further, a valve ball is placed at the center of the orifice plate.

Further, the elastic member is a spring.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a pair of porous petrol fuel sprayer of spraying is equipped with the check valve on the inlet channel, can keep the residual pressure of oil intracavity, in order to prevent that the bubble from producing and influencing the normal injection when the temperature risees.

2. The utility model provides a pair of porous petrol fuel sprayer of spraying, through setting up the filter screen, guaranteed that only the fuel through the filter screen just can reach valve body and disk seat complex position, avoid the granule miscellaneous condition that causes the influence to its normal work that exists in the fuel, the practicality is big.

3. The utility model provides a pair of porous petrol fuel sprayer that sprays, through setting up the backflow structure, the remaining liquid that produces behind the oil spout through back taper platform landing to the inside of guiding gutter, the guiding gutter is to both sides hollow, makes remaining liquid enter into in the guiding gutter by the water conservancy diversion hole, and then enters into in the guiding gutter, has reduced the deposit of carbon dust, prevents to take place the condition of jam, and the resource of retrieving can recycle, reduces the waste of resource.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the reflux structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a gasoline injection nozzle body; 11. an inlet channel; 111. a one-way valve; 12. an elastic member; 13. an electromagnetic coil; 131. a magnetism isolating ring; 14. a valve stem; 15. an oil inlet structure; 151. An oil inlet pipe joint; 152. a filter screen; 153. a slit filter element; 154. an oil passage; 16. a valve seat; 17. a valve cover; 18. a spray orifice plate; 181. a valve ball; 19. a reflow structure; 191. a return pipe; 192. a flow guide pipe; 193. a flow deflector; 194. a diversion trench; 195. an inverted frustum; 196. and (4) flow guide holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a multi-hole injection gasoline injector comprises a gasoline injector body 1, wherein the gasoline injector body 1 comprises an inlet channel 11, an elastic member 12, an electromagnetic coil 13, a valve rod 14, an oil inlet structure 15, a valve seat 16, a valve cover 17, an orifice plate 18 and a backflow structure 19, the elastic member 12 is arranged at the lower end of the inlet channel 11, the elastic member 12 is a spring, the inlet channel 11 is provided with a one-way valve 111 capable of maintaining residual pressure in an oil cavity to prevent bubbles from generating to affect normal injection when the temperature rises, the end of the elastic member 12 is connected with the valve rod 14, the electromagnetic coil 13 is arranged in the inner cavity of the gasoline injector body 1, a magnetism isolating ring 131 is arranged outside the magnetic induction part of the valve rod 14, the oil inlet structure 15 penetrates through the inner cavity of the gasoline injector body 1 to be connected with the valve seat 16, and the oil inlet structure 15 comprises an oil inlet pipe joint, The gap filter element 153 and the oil duct 154, two ends of the gap filter element 153 are respectively connected with the oil inlet pipe joint 151 and the oil duct 154, the filter screen 152 is arranged in the gap filter element 153, the situation that only fuel oil passing through the filter screen 152 can reach the matched part of the valve body and the valve seat is ensured by arranging the filter screen 152, and the situation that particle impurities existing in the fuel oil influence the normal work of the valve body and the valve seat is avoided, the practicability is high, the valve seat 16 is connected with the valve cover 17 through the end face, the valve cover 17 is connected with the spray hole plate 18, the valve ball 181 is placed at the central position of the spray hole plate 18, the backflow structure 19 is connected and communicated with the valve cover 17, the backflow structure 19 comprises a backflow pipe 191, a flow guide pipe 192, a flow guide sheet 193, a flow guide groove 194, an inverted cone 195 and a flow guide hole 196, the flow guide sheet 193 is arranged on the valve cover, Back taper platform 195 and water conservancy diversion hole 196, the back flow 191 passes through the honeycomb duct 192, be equipped with water conservancy diversion hole 196 on the water conservancy diversion piece 193, water conservancy diversion hole 196 passes through honeycomb duct 192 and back flow 191 intercommunication, through setting up backflow structure 19, the residual liquid that produces after the oil spout, through the inside of back taper platform 195 landing to guiding gutter 194, guiding gutter 194 is sunken to both sides depression, make residual liquid enter into honeycomb duct 192 in by guiding hole 196, and then enter into in the back flow 191, the deposit of carbon dust has been reduced, prevent the condition of jam, the resource of retrieving can be recycled, reduce the waste of resource.

In summary, the following steps: the utility model provides a porous petrol injection nozzle who sprays, including petrol injection nozzle body 1, be equipped with check valve 111 on the inlet channel 11, can keep the residual pressure in the oil chamber, in order to prevent that the bubble from producing and influencing normal injection when the temperature risees, through setting up filter screen 152, guarantee that only the fuel that passes through filter screen 152 can reach valve body and valve seat complex position, avoid the condition that the granule impurity that exists in the fuel causes the influence to its normal work, the practicality is big, through setting up backflow structure 19, the residual liquid that produces after the oil spout, through the inside of back taper platform 195 landing to guiding gutter 194, guiding gutter 194 sinks to both sides depressed, make residual liquid get into in the honeycomb duct 192 by guiding hole 196, and then get into in the back flow 191, the deposit of carbon ash has been reduced, prevent the condition of taking place the jam, the resource of retrieving can recycle, the waste of resources is reduced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A gasoline injector of porous injection, includes gasoline injector body (1), its characterized in that: the gasoline injection nozzle body (1) comprises an inlet channel (11), an elastic piece (12), an electromagnetic coil (13), a valve rod (14), an oil inlet structure (15), a valve seat (16), a valve cover (17), a spray hole plate (18) and a backflow structure (19), wherein the elastic piece (12) is arranged at the lower end of the inlet channel (11), the end part of the elastic piece (12) is connected with the valve rod (14), the electromagnetic coil (13) is arranged in an inner cavity of the gasoline injection nozzle body (1), the oil inlet structure (15) penetrates through the inner cavity of the gasoline injection nozzle body (1) to be connected with the valve seat (16), the valve seat (16) is connected with the valve cover (17) through an end face, the valve cover (17) is connected with the spray hole plate (18), and the backflow structure (19) is connected and communicated with the valve.

2. The multi-port injection gasoline injector of claim 1, wherein: the oil inlet structure (15) comprises an oil inlet pipe joint (151), a filter screen (152), a gap filter element (153) and an oil duct (154), two ends of the gap filter element (153) are connected with the oil inlet pipe joint (151) and the oil duct (154) respectively, and the filter screen (152) is arranged in the gap filter element (153).

3. The multi-port injection gasoline injector of claim 1, wherein: reflux structure (19) are including back flow (191), honeycomb duct (192), water conservancy diversion piece (193), guiding gutter (194), back taper platform (195) and water conservancy diversion hole (196), be equipped with water conservancy diversion piece (193) on valve gap (17), the surface of water conservancy diversion piece (193) bottom is equipped with back taper platform (195), be equipped with between the surface of back taper platform (195) and water conservancy diversion piece (193) bottom guiding gutter (194), back taper platform (195) and water conservancy diversion hole (196), honeycomb duct (192) are passed through in back flow (191), be equipped with water conservancy diversion hole (196) on water conservancy diversion piece (193), water conservancy diversion hole (196) are through honeycomb duct (192) and back flow (191) intercommunication.

4. The multi-port injection gasoline injector of claim 1, wherein: the inlet channel (11) is provided with a one-way valve (111).

5. The multi-port injection gasoline injector of claim 1, wherein: the magnetism isolating ring (131) is arranged outside the magnetic induction part of the valve rod (14).

6. The multi-port injection gasoline injector of claim 1, wherein: a valve ball (181) is arranged at the center of the jet orifice plate (18).

7. The multi-port injection gasoline injector of claim 1, wherein: the elastic piece (12) is a spring.

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