CN210599245U - Bottom spiral-flow type nozzle and car - Google Patents

Abstract

The utility model relates to a bottom spiral-flow type nozzle, which comprises a valve body, a valve core, the disk seat, the upper end of valve body is equipped with the oil inlet, lower tip is connected with the disk seat, the case sets up in the valve body, form medium channel between case and the valve body, still include the swirl device, the orifice plate, the swirl device sets up establishes the type intracavity in the disk seat, be equipped with the atomizing hole on the orifice plate and be connected with the lower tip of disk seat, the lower tip lid of case is established on the atomizing hole and the case can reciprocate in the valve body and make medium channel and atomizing hole intercommunication or close, the swirl device carries out the spiral to the medium that comes from medium channel with higher speed and transports to the atomizing hole atomizing. The utility model divides the first valve seat into three designs, adds the swirl block and the orifice plate, leads the medium to enter through the swirl block, guides the medium to be screwed into the orifice plate in an accelerating way through the unique swirl design at the bottom of the swirl block, and enhances the atomization effect; simultaneously, still disclose the car that contains above-mentioned nozzle.

Description

Bottom spiral-flow type nozzle and car

Technical Field

The utility model belongs to the technical field of automobile engines, in particular to a bottom spiral-flow type nozzle which is suitable for high-low pressure, low pressure and various media; it also relates to a motor vehicle comprising the above nozzle.

Background

The oil nozzle is one of key components of the engine, and the performance of the engine is seriously influenced by the working condition of the oil nozzle. In the existing automobile engines, various types of nozzles are used to improve the spray quality, such as high and low pressure direct nozzles, swirl nozzles, and the like.

The utility model discloses a utility model patent of publication No. CN2606192 specifically discloses an automobile electricity spouts sprayer, including valve body, orifice plate, bulb, shell, the orifice on the orifice plate is 2-3. The combustion chamber has the advantages of simple structure, full combustion, small environmental pollution and the like. However, the porous high-low pressure direct injection nozzle is solid injection, so that the atomization performance is poor when the injection pressure is low, the requirement on the injection pressure is high, and the porous high-low pressure direct injection nozzle has good atomization performance only when the spray hole is small and the jet speed is high.

The invention patent with publication number CN 101737218A specifically discloses an injector for a direct injection engine, comprising: casing, valve rod, nozzle opening, inlet port and oil circuit, wherein: the oil spout hole and the inlet port set up respectively in the both ends of casing, and the oil circuit is located the casing and both ends are connected with inlet port and oil spout hole respectively, and the one end of valve rod sets up inside one side of the nearly inlet port of casing and is located the central authorities of a plurality of oil circuits, is equipped with a plurality of helicla flutes on the valve rod, and the top of valve rod and disk seat are spherical structure. The patent can guarantee a larger spray cone angle under low spray pressure and higher back pressure, thereby improving the atomization performance of the nozzle. However, the improved nozzle atomization performance of this patent is limited and needs further optimization.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide a bottom spiral-flow type nozzle that adapts to high-low pressure oil feed mechanism, divide into three designs with disk seat one, add whirl piece and orifice plate, make the medium get into through whirl piece, through the unique whirl design of whirl piece bottom, guide medium screw in orifice plate with higher speed, reinforcing atomization effect.

For solving the above technical problem, the utility model discloses a technical scheme who takes is:

the utility model provides a bottom spiral-flow type nozzle, which comprises a valve body, the case, the disk seat, the upper end of valve body is equipped with the oil inlet, lower tip is connected with the disk seat, the case sets up in the valve body, form medium channel between case and the valve body, still include the whirl device, the orifice plate, the whirl device sets up the interior type intracavity that establishes at the disk seat, be equipped with the atomizing hole on the orifice plate and be connected with the lower tip of disk seat, the lower tip lid of case is established on the atomizing hole and the case can reciprocate in the valve body and make medium channel and atomizing hole intercommunication or close, the whirl device carries out spiral acceleration and transports to the atomizing hole atomizing to the medium that comes from medium.

Preferably, the swirling device comprises a swirling block arranged above the spray hole plate, a through hole is formed in the center of the swirling block, a ball body arranged at the lower end of the valve core penetrates through the through hole to be connected with the spray hole plate in a sealing mode through a first sealing surface, the first sealing surface is located above the atomization hole, a flow inlet groove is formed in the outer wall of the swirling block, an outflow groove communicated with the inflow groove is formed in the lower surface of the swirling block, the outflow groove is spirally formed from outside to inside, the outflow groove is located above the first sealing surface, and the medium channel is communicated with the atomization hole through the inflow groove and the outflow groove. The medium flows into the outflow groove through the inflow groove arranged on the rotational flow block, and the unique bottom spiral design of the outflow groove guides the medium to enter the atomization hole on the orifice plate in an acceleration mode to enhance atomization.

Further preferably, the vortex block is shaped as a truncated cone or a cylinder. It may also be provided as a sphere.

Preferably, the number of the inflow grooves is at least one, the number of the outflow grooves is at least one, and the inflow grooves and the outflow grooves are respectively and uniformly distributed on the vortex block. The stability of the pressure of each section of medium is ensured, and the consistency of the atomization effect each time is achieved.

Preferably, the open cross-sectional shape of the inflow groove is a polygon or a curved pattern.

Preferably, the inflow groove is vertically arranged from top to bottom along the outer wall of the rotational flow block, or spirally arranged from top to bottom along the circumferential direction.

Preferably, the outflow groove is arranged along the center of the rotational flow block in a unidirectional rotation mode.

Preferably, a vacuum groove is arranged below the first sealing surface on the orifice plate, the vacuum groove comprises a vertically arranged side wall, the upper end of the side wall is connected with the lower end of the first sealing surface, and the lower end of the side wall is connected with the atomizing hole through a cambered surface extending downwards and inwards. The vacuum groove is arranged to avoid the influence on the atomization effect caused by the blockage of the oil spray hole after the hardening and drying of residual media and impurities.

Preferably, the inner wall of the valve seat is provided with an avoiding groove extending towards the outer wall direction above the cyclone block. And after being matched with the cyclone block, the open space is increased, and the medium circulation is accelerated.

The utility model discloses still need to provide another technical scheme and be:

an automobile comprising a nozzle as described above.

Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:

1. the utility model divides the first valve seat into three designs, adds the swirl block and the orifice plate, leads the medium to enter through the swirl block, guides the medium to be screwed into the orifice plate in an accelerating way through the unique swirl design at the bottom of the swirl block, and enhances the atomization effect;

2. the utility model has the advantages that the avoidance groove is specially designed inside the valve seat, and the open space is increased after the avoidance groove is matched with the rotational flow block, so that the medium circulation is accelerated;

3. the utility model discloses increased the design in vacuum groove, when the case was opened the back and the clearance of orifice plate formation 0.05-0.2mm, high-low pressure medium will be in the vacuum region after flowing into the vacuum groove at a high speed, and the vortex of air can take away the interior medium of orifice plate completely, avoids remaining medium, impurity sclerosis to dry and knot the back and blocks up the atomizing hole, influences atomization effect.

Drawings

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

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a first schematic structural diagram of a vortex block;

FIG. 5 is a second schematic structural diagram of a vortex block;

FIG. 6 is a top view of FIG. 4;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a longitudinal cross-sectional view of FIG. 5;

FIG. 9 is a schematic structural view of a nozzle plate;

FIG. 10 is a longitudinal cross-sectional view of FIG. 9;

FIG. 11 is a schematic view of a valve seat;

FIG. 12 is a longitudinal cross-sectional view of FIG. 11;

wherein: 1. a valve body; 2. a valve core; 21. a body; 22. a sphere; 3. a valve seat; 4. a rotational flow block; 41. a flow inlet groove; 42. a discharge chute; 5. a spray orifice plate; 51. an atomization orifice; 52. a first circular table; 53. a second circular table; 6. a vacuum tank; 7. an avoidance groove; 8. a convex edge; 9. and (6) chamfering.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples. For clarity of disclosure, "upper" and "lower" in the present disclosure are defined relative to the media orientation. The position of the element far away from the atomization hole and close to the oil inlet in the drawing is defined as 'upper', and the position of the element near the atomization hole and far away from the oil inlet in the drawing is defined as 'lower'.

As shown in fig. 1 to 12, the utility model relates to a bottom spiral-flow type nozzle, including valve body 1, case 2, disk seat 3, whirl piece 4, orifice plate 5.

The valve body 1 is a tubular structure with a cavity arranged inside, and an oil inlet is arranged at the upper end part of the valve body.

The valve seat 3 is a cylindrical structure with a cavity arranged inside, the lower part of the periphery of the valve seat is provided with a step structure protruding outwards, and the lower end part of the valve body 1 is sleeved outside the valve seat 3 and is abutted against the step structure. The valve body 1 is connected with the valve seat 3 in a sealing way.

The lower part of the cavity of the valve seat 3 is provided with a rotational flow block 4 and a spray orifice plate 5 from top to bottom in sequence. The rotational flow block 4 and the orifice plate 5 are both cylindrical structures. The center of the rotational flow block 4 is provided with a through hole. The inside of the orifice plate 5 is sequentially provided with a first circular truncated cone 52-shaped opening and a second circular truncated cone 53-shaped opening and an atomization hole 51 from top to bottom, the first circular truncated cone 52 and the second circular truncated cone 53 are arranged in a large-size-up-and-small-size manner, and the circle centers of the first circular truncated cone 52, the second circular truncated cone 53 and the atomization hole 51 are points on the central axis of the orifice plate 5. The atomization holes 51 are inclined holes deviating from the central axis of the orifice plate 5, and the lower end surface of the orifice plate 5 is flush with the lower end surface of the valve seat 3. The rotational flow block 4 and the orifice plate 5 are respectively connected with the valve seat 3 in a sealing way.

The valve core 2 is arranged in the valve body 1, and a medium channel is formed between the valve core 2 and the valve body 1. The valve core 2 comprises a body 21 and a ball 22 arranged at the lower end of the body 21, the ball 22 passes through a through hole cover on the swirl block 4 and is arranged on the atomization hole 51, and the ball 22 is connected with the side surface (first sealing surface) of the second circular table 53 in a sealing manner. The vortex block 4 spirally accelerates the medium from the medium channel, the valve core 2 can work in an up-and-down opening and closing state for 10-20 times in 1 second under the action of the electromagnetic valve, and a gap of 0.05-0.2mm is formed between the valve core 2 and the first sealing surface after the valve core is opened, so that the medium enters the atomizing hole 51 at a high speed to realize atomization.

It is noted that the smaller the distance between the point of the sphere 22 closest to the wall of the swirl block 4 and the wall of the swirl block 4 is, the better, preferably less than 0.02mm, and more preferably the middle of the sphere 22 is located within the through hole of the swirl block 4, when the sphere 22 passes through the through hole in the swirl block 4 and moves up and down therein, the diameter of the through hole being equal to the diameter of the sphere 22, the arrangement being such that sufficient medium is ensured not to flow therethrough into the atomization hole 51.

In this embodiment, set up 4 inside sunken influent stream groove 41 on the outer wall of whirl piece 4, set up 4 outflow grooves 42 on the lower surface of whirl piece 4, outflow groove 42 outside-in spiral sets up, every influent stream groove 41 communicates an outflow groove 42 respectively, the medium flows into outflow groove 42 through influent stream groove 41 that sets up on whirl piece 4, the unique bottom spiral design of outflow groove 42, the guiding medium gets into the atomizing hole 51 on the orifice plate 5 with the form of accelerating, the reinforcing atomizing.

The inflow groove 41 and the outflow groove 42 are respectively and uniformly distributed on the cyclone block 4, so that the stability of the medium pressure of each section is ensured, and the consistency of the atomization effect each time is achieved. The inflow groove 41 is vertically arranged up and down along the height direction of the cyclone block 4 and is used for improving the speed of the medium. In other embodiments, the inflow groove 41 may be spirally arranged from top to bottom along the outer wall of the cyclone block 4 in the circumferential direction in order to extend the moving path of the medium. In order to facilitate better medium entering, the open cross-sectional shape of the inflow groove 41 is a curved pattern, and is composed of a line segment at the bottom and arcs symmetrically arranged at two ends of the line segment.

In this embodiment, the path of the outflow slots 42 is an arc shape bent from outside to inside, and the 4 outflow slots 42 are arranged along the center of the rotational flow block 4 in a unidirectional rotation manner, and the spiral acceleration is utilized to obtain a better atomization effect.

In this embodiment, the upper end of the swirl block 4 is provided with a chamfer 9 to facilitate the flow of the medium into the inflow groove 41 and to provide a direction of travel for the medium.

In this embodiment, a vacuum groove 6 is provided in the nozzle plate 5 between the second circular truncated cone 53 and the atomizing hole 51, the vacuum groove 6 is cylindrical and includes a vertically disposed side wall 61, the upper end of the side wall 61 is connected to the lower end of the second circular truncated cone 53, the side wall 61 is perpendicular to the lower bottom surface of the second circular truncated cone 53, and the lower end of the side wall 61 is connected to the atomizing hole 51 through a downwardly and inwardly extending arc surface. The vacuum groove 6 is arranged to avoid the influence on the atomization effect caused by the blockage of the oil spray hole after the hardening and drying of residual media and impurities.

In this embodiment, the cavity provided in the valve seat 3 is divided into two cavities having a smaller volume and a larger volume by the flange 8 provided on the inner wall. The swirl block 4 and the spray orifice plate 5 are arranged in the lower cavity, and the upper end part of the swirl block 4 is abutted with the convex edge 8. An avoiding groove 7 is formed in the upper portion of the lower cavity of the inner wall of the valve seat 3, and the avoiding groove 7 protrudes and extends towards the outer wall of the valve seat 3 along a convex edge 8. The opening cross-sectional shape of the avoidance groove 7 is a curved line pattern consisting of an arc line extending outwards and downwards and a straight line extending from outside to inside, and in other embodiments, the opening cross-sectional shape may be other polygons or curved line patterns. Polygons such as trapezoids or triangles, etc. The avoiding groove 7 is positioned above the rotational flow block 4, and is matched with the rotational flow block 4 to increase an open space and accelerate medium circulation.

The utility model discloses still need provide an automobile, include as above the nozzle.

The utility model discloses an oil feed principle as follows:

the medium enters the oil inlet from the oil inlet pipe, passes through the medium channel to the inflow groove 41 on the cyclone block 4, and then directly enters the outflow groove 42 at the bottom, the valve core 2 is sealed with the spherical surface of the valve seat 3, the valve core 2 works in an up-and-down opening and closing state for 10-20 times in 1 second under the action of the electromagnetic valve, so that the medium enters the atomizing hole 51 of the orifice plate 5 at a high speed, and novel atomization is realized.

The above description of the present invention is provided to help understand the method and the core idea of the present invention, and the purpose of the present invention is to allow people familiar with the art to understand the contents of the present invention and to implement the method, and thus the protection scope of the present invention cannot be limited by the above description. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a bottom spiral-flow type nozzle, includes valve body, case, disk seat, the upper end of valve body is equipped with the oil inlet, the lower tip with the disk seat is connected, the case sets up in the valve body, form medium channel, its characterized in that between case and the valve body: the spiral flow device is arranged in a cavity in the valve seat, atomization holes are formed in the orifice plate and connected with the lower end portion of the valve seat, the lower end portion of the valve core is covered on the atomization holes, the valve core can move up and down in the valve body to enable the medium channel to be communicated with or closed off the atomization holes, and the spiral flow device spirally accelerates the medium from the medium channel and conveys the medium to the atomization holes for atomization.

2. The bottom swirler of claim 1, wherein: the swirl device is including setting up the whirl piece of orifice plate top, the center of whirl piece is equipped with the through-hole, the spheroid that the lower tip of case set up pass the through-hole with the orifice plate is through first sealed face sealing connection, and first sealed face is located the top of atomizing hole, be equipped with the influent channel on the outer wall of whirl piece, be equipped with the groove of effluenting that is linked together with the influent channel on the lower surface of whirl piece, the groove outside-in spiral setting of effluenting, the effluence channel is located the top of first sealed face, and the medium passageway is through the influent channel and effluence channel and atomizing hole intercommunication.

3. The bottom swirler of claim 2, wherein: the vortex block is in the shape of a truncated cone or a cylinder.

4. The bottom swirler of claim 2, wherein: the number of inflow groove is at least one, the number of play chute is at least one, inflow groove and play chute are evenly distributed on the whirl piece respectively.

5. The bottom swirler of claim 2, wherein: the opening section of the inflow groove is in a polygonal or curved shape.

6. The bottom swirler of claim 2, wherein: the inflow groove is vertically arranged along the outer wall of the rotational flow block from top to bottom or spirally arranged along the circumferential direction from top to bottom.

7. The bottom swirler of claim 2, wherein: the outflow groove is arranged along the center of the rotational flow block in a unidirectional rotating manner.

8. The bottom swirler of claim 2, wherein: the vacuum groove is arranged below the first sealing surface on the orifice plate and comprises a vertically arranged side wall, the upper end of the side wall is connected with the lower end of the first sealing surface, and the lower end of the side wall is connected with the atomizing hole through a cambered surface extending downwards and inwards.

9. The bottom swirler of claim 1, wherein: and the inner wall of the valve seat is provided with an avoiding groove extending towards the outer wall direction above the cyclone block.

10. An automobile comprising a nozzle as claimed in claims 1 to 9.

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