CN103407441A - Venturi valve and vacuum power assisting device - Google Patents
Venturi valve and vacuum power assisting device Download PDFInfo
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- CN103407441A CN103407441A CN2013103605124A CN201310360512A CN103407441A CN 103407441 A CN103407441 A CN 103407441A CN 2013103605124 A CN2013103605124 A CN 2013103605124A CN 201310360512 A CN201310360512 A CN 201310360512A CN 103407441 A CN103407441 A CN 103407441A
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Abstract
The invention discloses a venturi valve and a vacuum power assisting device, which relates to the technical field of automobiles, and aims for solving the technical problem in the prior art that people feel hard to stamp down a pedal when an automobile is braked as the vacuum degree inside a vacuum power assisting device is low. The venture valve comprises a suction tube, a venturi tube, a connecting tube body, an exhaust tube, a first check valve and at least one second check valve, wherein the air inlets of the first check valve and the second check valve are both communicated with the air outlet of the suction tube; the air outlet of the first check valve is communicated with the small-diameter port of the venturi tube; the air outlet of the second check valve and the air inlet of the exhaust tube are both communicated with the small-diameter port of the venturi tube through the connecting tube body. The vacuum power assisting device comprises a vacuum source, an air filter, a vacuum power assistor and the venturi valve provided by any technical scheme of the invention. The venturi valve is used for improving the vacuum degree of the vacuum power assisting device.
Description
Technical field
The present invention relates to automobile technical field, being specifically related to can be for a kind of venturi valve of automobile brake ancillary system and the vacuum booster unit that this venturi valve is set.
Background technology
Along with the high speed development of auto-industry, user vehicle is more and more higher to the requirement of vehicle safety performance, and the vacuum booster unit on automobile has become parts indispensable on automobile.
In prior art, adopt induction maniflod to provide vacuum for the vacuum booster unit in petrol engine vehicles, the induction maniflod of petrol engine vehicles can produce higher negative pressure of vacuum and directly for vacuum booster unit, provide vacuum.The vacuum source of induction maniflod is breathing process when the engine piston crank motion.
Safety and reliability when the reasonableness of vacuum booster unit design will directly have influence on automobile brake.In prior art, the vacuum that automobile touch driving engine self produces comes the auxiliary braking parts to implement the action of braking, and degree of vacuum is higher, and deceleration and stopping performance is better.But along with the development of automotive technology, the vacuum that driving engine self produces can't meet the needs of each system of automobile to vacuum.
There is following technical matters at least in prior art:
Because the degree of vacuum in vacuum booster unit in prior art is lower, while causing automobile brake, step on pedal and be prone to partially hard phenomenon.
Summary of the invention
The objective of the invention is the vacuum booster unit that proposes a kind of venturi valve and this venturi valve is set, solved prior art and existed the degree of vacuum in vacuum booster unit lower, while causing automobile brake, step on the technical matters that pedal is prone to partially hard phenomenon.
For achieving the above object, the invention provides following technical scheme:
The venturi valve that the embodiment of the present invention provides, comprise extraction pipe, Venturi tube, connection body, freeing pipe, the first boiler check valve and at least one the second boiler check valve, wherein:
Described the first boiler check valve, described the second boiler check valve air inlet port separately all are connected with the port of giving vent to anger of described extraction pipe;
Described Venturi tube comprises bigger diameter end mouth and path port, and the caliber size of the bigger diameter end mouth of described Venturi tube is greater than the caliber size of the path port of described Venturi tube;
The port of giving vent to anger of described the first boiler check valve is connected with the path port of described Venturi tube;
Both all are connected the air inlet port of give vent to anger port and the described freeing pipe of described the second boiler check valve with the path port of described Venturi tube by described connection body.
Preferably or alternatively in embodiment, the direction internal diameter size along from described the first boiler check valve to described the second boiler check valve of described connection body increases gradually at one.
At one preferably or alternatively in embodiment, described Venturi tube, described connection body and described freeing pipe three's axial line coincides, and described Venturi tube, described connection body and described freeing pipe three's axial line parallels with the axial line of described extraction pipe.
Preferably or alternatively in embodiment, described the first boiler check valve comprises the first valve block, the first sealing flange, at least two the first pillar stiffeners and at least two the first limit ribs at one, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on described the first boiler check valve for described the first sealing flange, and at least two described the first limit ribs are fixedly installed on described the first sealing flange inboard;
At least two described the first pillar stiffeners are fixedly installed on the port of giving vent to anger of the first boiler check valve;
In the gap of described the first valve block between described the first pillar stiffener and described the first sealing flange, and when described the first valve block was connected on described the first sealing flange, described the first valve block was connected with described the first sealing flange formation vapor seal, described the first boiler check valve cut-off.
Preferably or alternatively in embodiment, described the first boiler check valve comprises two described the first limit ribs, and the setting interlaced with each other of two described the first limit ribs at one.
Preferably or alternatively in embodiment, described the second boiler check valve comprises the second valve block, the second sealing flange, at least two the second pillar stiffeners and at least two the second limit ribs at one, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on described the second boiler check valve for described the second sealing flange, and at least two described the second limit ribs are fixedly installed on described the second sealing flange inboard; At least two described the second pillar stiffeners are fixedly installed on the port of giving vent to anger of the second boiler check valve; In the gap of described the second valve block between described the second pillar stiffener and described the second sealing flange, and when described the second valve block was connected on described the second sealing flange, described the second valve block was connected with described the second sealing flange formation vapor seal, described the second boiler check valve cut-off.
Preferably or alternatively in embodiment, described venturi valve comprises upper half shell, lower half shell, described the first valve block and described the second valve block at one, wherein:
Described upper half shell and described lower half shell are fixed together;
Described the first pillar stiffener, described the second pillar stiffener, described Venturi tube, described connection body and described freeing pipe all are positioned on described lower half shell;
Described the first sealing flange, described the first limit ribs, described the second sealing flange and described the second limit ribs all are positioned on described upper half shell.
Preferably or alternatively in embodiment, described upper half shell and described lower half shell are made for same material and both weld togethers at one.
At one preferably or alternatively in embodiment, described extraction pipe, described Venturi tube and described freeing pipe are provided with the anticreep flange of at least one ring-type at least on one of them outer wall, and the outline of the cross-sectional plane of described anticreep flange is barb-like.
The vacuum booster unit that the embodiment of the present invention provides, comprise the venturi valve that the arbitrary technical scheme of vacuum source, airfilter, vacuum booster and the present invention provides, wherein:
Described vacuum source is connected with the port of giving vent to anger of the freeing pipe of described venturi valve;
Described airfilter is connected with the bigger diameter end mouth of the Venturi tube of described venturi valve;
Described vacuum booster is connected with the air inlet port of the extraction pipe of described venturi valve.
Based on technique scheme, the embodiment of the present invention can produce following technique effect at least:
In the venturi valve that the embodiment of the present invention provides, when vacuum source (being preferably induction maniflod) is connected with the port of giving vent to anger of the freeing pipe of venturi valve, vacuum source is started working and while extracting the air in venturi valve, it due to the venturi effect of Venturi tube, is near the reason that can produce low pressure swiftly flowing gas, the port of giving vent to anger of the first boiler check valve can produce low pressure then in the first boiler check valve and whole venturi valve except the negative pressure that vacuum source provides is arranged, the low pressure that also exists Venturi tube to cause, under the double action of negative pressure and low pressure, it is more clean that gas in venturi valve can be extracted, simultaneously, because the first boiler check valve and the second boiler check valve all only can one-way conductions, so the gas in venturi valve only can be fewer and feweri, degree of vacuum can be more and more higher, under the negative pressure combined action that the low pressure that last Venturi tube causes and vacuum source provide, can make the interior degree of vacuum of venturi valve be greater than the degree of vacuum of vacuum source, improved thus the ability vacuumized of vacuum source, having solved prior art exists the degree of vacuum in vacuum booster unit lower, while causing automobile brake, step on the technical matters that pedal is prone to partially hard phenomenon.
Optimal technical scheme provided by the invention can produce following technique effect at least:
More than the venturi valve that plastic material is made can further strengthen 200mbar by the degree of vacuum that driving engine produces, it strengthens the vacuum that automobile self produces, met the requirement of vacuum boost system to vacuum, strengthened stability, the safety of brake system, when having solved thus existing vacuum booster unit and making automobile brake because degree of vacuum is too low, partially hard phenomenon appears in brake pedal.Under certain conditions simultaneously (for example: dispose small displacement TC engine and most of normally aspirated engine and automobile on) can replace existing electronic vacuum pump as reliable the supplementing that vacuum strengthens, improved reliability, the economy of brake system.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
The schematic diagram of the venturi valve that Fig. 1 provides for a kind of embodiment of the embodiment of the present invention;
Fig. 2 is the cross-sectional schematic of venturi valve shown in Figure 1;
The schematic diagram of the venturi valve that Fig. 3 provides for the another kind of embodiment of the embodiment of the present invention;
Fig. 4 is the cross-sectional schematic of venturi valve shown in Figure 3;
The schematic diagram of annexation between two the first limit ribs and the first sealing flange in the venturi valve that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram of the principle of work of the venturi valve that Fig. 6 provides for the embodiment of the present invention;
When in the venturi valve that Fig. 7 provides for the embodiment of the present invention, the first boiler check valve and the second boiler check valve were all opened, vacuum source extracted in the process of gas in venturi valve the schematic diagram of gas flow in venturi valve;
In the venturi valve that Fig. 8 provides for the embodiment of the present invention, the first boiler check valve is opened, and during the second closure of check ring, vacuum source extracts in the process of gas in venturi valve the schematic diagram of gas flow in venturi valve;
Reference numeral: 1, extraction pipe; 2, Venturi tube; 3, connect body; 4, freeing pipe; 51, the first boiler check valve; 511, the first valve block; 512, the first sealing flange; 513, the first pillar stiffener; 514, the first limit ribs; 52, the second boiler check valve; 521, the second valve block; 522, the second sealing flange; 523, the second pillar stiffener; 61, upper half shell; 62, lower half shell; 7, anticreep flange; 81, vacuum source; 82, airfilter; 83, vacuum booster.
The specific embodiment
Below can understand the distinctive points between content of the present invention and the present invention and prior art with reference to accompanying drawing Fig. 1～Fig. 8 and word content.Hereinafter by accompanying drawing and the mode of enumerating optional embodiment more of the present invention, technical scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characterictic in the present embodiment, any technical scheme is all the technical characterictic of plurality of optional or one or more in optional technical scheme, can't exhaustive all alternative technical characterictics of the present invention and alternative technical scheme in order to describe succinct need in presents, the embodiment that also is not easy to each technical characterictic emphasizes that all it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means provided by the invention can be replaced or arbitrarily two or more technological means provided by the invention or technical characterictic are combined mutually and obtain new technical scheme.Any technical characterictic and any technical scheme in the present embodiment all do not limit the scope of the invention, and protection scope of the present invention should comprise that those skilled in the art do not pay that the creative work thinkable any alternate embodiments of institute and those skilled in the art combine any two or more technological means provided by the invention or technical characterictic mutually and the new technical scheme that obtains.
The embodiment of the present invention provides a kind of venturi valve of condition of high vacuum degree and vacuum booster unit that this venturi valve is set can obtained more.
Below in conjunction with Fig. 1～Fig. 8, technical scheme provided by the invention is carried out to more detailed elaboration.
As Fig. 1～shown in Figure 8, the venturi valve that the embodiment of the present invention provides, comprise extraction pipe 1, Venturi tube 2, connect body 3, freeing pipe 4, the first boiler check valve 51 and at least one (being preferably one) second boiler check valve 52, wherein:
The first boiler check valve 51, the second boiler check valve 52 air inlet port separately all are connected with the port of giving vent to anger of extraction pipe 1.From the port of giving vent to anger that the first boiler check valve 51, the second boiler check valve 52 air inlet port separately are connected, can also can be two ports different on extraction pipe 1 for the same port on extraction pipe 1.
Venturi tube 2 comprises bigger diameter end mouth and path port, and the caliber size of the bigger diameter end mouth of Venturi tube 2 is greater than the caliber size of the path port of Venturi tube 2.
The port of giving vent to anger of the first boiler check valve 51 is connected with the path port of Venturi tube 2.
Both all are connected the air inlet port of give vent to anger port and the freeing pipe 4 of the second boiler check valve 52 with the path port of Venturi tube 2 by connecting body 3.
When vacuum source (being preferably induction maniflod) 81 is connected with the port of giving vent to anger of the freeing pipe 4 of venturi valve, vacuum source 81 is started working and while extracting the air in venturi valve, it due to the venturi effect of Venturi tube 2, is near the reason that can produce low pressure swiftly flowing gas, the port of giving vent to anger of the first boiler check valve 51 can produce low pressure then in the first boiler check valve 51 and whole venturi valve except the negative pressure that vacuum source 81 provides is arranged, the low pressure that also exists Venturi tube 2 to cause, under the double action of negative pressure and low pressure, it is more clean that gas in venturi valve can be extracted, simultaneously, because the first boiler check valve 51 and the second boiler check valve 52 all only can one-way conductions, so the gas in venturi valve only can be fewer and feweri, degree of vacuum can be more and more higher, under the negative pressure combined action that the low pressure that last Venturi tube 2 causes and vacuum source 81 provide, can make the interior degree of vacuum of venturi valve be greater than the degree of vacuum of vacuum source 81, improved thus the ability vacuumized of vacuum source 81.
As preferably a kind of or embodiment alternatively, connect body 3 along from the direction internal diameter size of the first boiler check valve 51 to second boiler check valve 52, increasing gradually.Connect body 3 and be conducive to reduce air-flow from Venturi tube 2 inflow freeing pipes 4.Connect the structure that body 3 can adopt similar Venturi tube.
As preferably a kind of or embodiment alternatively, Venturi tube 2, the axial line that connects body 3 and freeing pipe 4 threes coincide.This structure can effectively reduce the Venturi tube 2 of flowing through, connect the resistance of the air-flow of body 3 and freeing pipe 4.
Venturi tube 2, connection body 3 and freeing pipe 4 threes' axial line is preferably with the axial line of extraction pipe 1 and parallels.
This structure is compact conformation not only, be convenient to manufacture, and be conducive to reduce flow through Venturi tube 2, connect the resistance of the air-flow of body 3 and freeing pipe 4.
As preferably a kind of or embodiment alternatively, the first boiler check valve 51 comprises the first valve block 511, the first sealing flange 512, at least two the first pillar stiffeners 513 and at least two the first limit ribs 514, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on the first boiler check valve 51 for the first sealing flange 512, and at least two the first limit ribs 514 are fixedly installed on the first sealing flange 512 inboards.
At least two the first pillar stiffeners 513 are fixedly installed on the port of giving vent to anger of the first boiler check valve 51.
In the gap of the first valve block 511 between the first pillar stiffener 513 and the first sealing flange 512, and when the first valve block 511 was connected on the first sealing flange 512, the first valve block 511 was connected with the first sealing flange 512 formation vapor seals, the first boiler check valve 51 cut-offs (or claiming: close, turn-off).
The first boiler check valve 51 be only can the one direction conducting valve.When the first valve block 511 is connected on the first pillar stiffener 513, air-flow can flow out from the port of giving vent to anger of the first boiler check valve 51 through the gap between the first valve block 511 and the first pillar stiffener 513, now, the first boiler check valve 51 conductings, otherwise, when the first valve block 511 was connected on the first sealing flange 512, the first valve block 511 was connected with the first sealing flange 512 formation vapor seals, the first boiler check valve 51 cut-offs.
As preferably a kind of or embodiment alternatively, the first boiler check valve 51 comprises two the first limit ribs 514, and the setting interlaced with each other of two the first limit ribs 514.Article two, the length direction of the second limit ribs is preferably and is perpendicular to one another.The second limit ribs can avoid the first valve block 511 to be inhaled into extraction pipe 1 with air-flow.
As preferably a kind of or embodiment alternatively, the second boiler check valve 52 comprises the second valve block 521, the second sealing flange 522, at least two the second pillar stiffeners 523 and at least two the second limit ribs, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on the second boiler check valve 52 for the second sealing flange 522, and at least two the second limit ribs are fixedly installed on the second sealing flange 522 inboards.At least two the second pillar stiffeners 523 are fixedly installed on the port of giving vent to anger of the second boiler check valve 52.In the gap of the second valve block 521 between the second pillar stiffener 523 and the second sealing flange 522, and the second valve block 521 while being connected on the second sealing flange 522 the second valve block 521 with the second sealing flange 522, form vapor seals and be connected, the second boiler check valve 52 ends.
The structure of the second boiler check valve 52 can be designed as and the structural similitude of the first boiler check valve 51 or in full accord.
The present invention has structurally designed two check valves i.e. the first boiler check valve 51, the second boiler check valve 52, and the realization of the function of above-mentioned check valve is by the sealing flange of upper half shell 61, valve block, reaches lower half shell 62 pillar stiffener three parts formations.When check valve needs conducting, be, valve block is attached on lower half shell 62 pillar stiffeners, and the space of pillar stiffener lower end guarantees that gas can pass through smoothly.Otherwise when check valve need to be closed, valve block was close on the flange of upper half shell 61, guaranteed the seal request of upper half shell 61.Whole plastics venturi valve entire body is used plastic material, and the material of all parts all adopts the high-quality imported materials and items, and flame resistance and mechanicalness are all very good.Guarantee that the fuel-steam check valve is normally used between-40 ℃ to 150 ℃.Certainly, the first valve block 511 and the second valve block 521 also can adopt elastomeric material or other elastomeric material manufactures.
In the middle of upper half shell 61, lower half shell 62, being designed with the i.e. effect of the first boiler check valve 51 and the second boiler check valve 52 of two check valves is mainly reflected in aspect two:
1, guarantee that air flows from vacuum booster 83 directions towards vacuum source 81 directions.
2, (be called for short: air filter) 82 directions flow towards vacuum booster 83 directions, and guarantee that the vacuum of vacuum booster 83 can keep by actv. from vacuum source 81 directions or airfilter to stop air.
As preferably a kind of or embodiment alternatively, venturi valve comprises upper half shell 61, lower half shell 62, the first valve block 511 and the second valve block 521, wherein:
Upper half shell 61 is fixed together with lower half shell 62.
The first pillar stiffener 513, the second pillar stiffener 523, Venturi tube 2, connection body 3 and freeing pipe 4 all are positioned on lower half shell 62.The first pillar stiffener 513, the second pillar stiffener 523, Venturi tube 2, connection body 3 and freeing pipe 4 can adopt forming process to be formed on lower half shell 62.
The first sealing flange 512, the first limit ribs 514, the second sealing flange 522 and the second limit ribs all are positioned on upper half shell 61.
After upper half shell 61, lower half shell 62 are made separately, can adopt the mode that welding process etc. is fixedly connected with that upper half shell 61 and lower half shell 62 are fixed together.
As preferably a kind of or embodiment alternatively, both be that same material (can adopt plastic material, be preferably employing PA66) is made and both weld togethers for upper half shell 61 and lower half shell 62.
As preferably a kind of or embodiment alternatively, extraction pipe 1, Venturi tube 2 and freeing pipe 4 are provided with the anticreep flange 7 of at least one (being preferably a plurality of) ring-type at least on one of them outer wall, and the outline of the cross-sectional plane of anticreep flange 7 is barb-like.
The adaptor union that anticreep flange 7 can be avoided being connected with extraction pipe 1, Venturi tube 2 and freeing pipe 4 gets loose, thus reliability and leak tightness that the reinforced pipe joint is connected with extraction pipe 1, Venturi tube 2 and freeing pipe 4.
The anticreep flange 7 of a plurality of ring-types has formed the hangnail of Bamboo-shaped, venturi valve upper half shell 61 design ring hangnails, can realize being connected with vacuum booster 83 by the PA pipe, lower half shell 62 two ends all are designed with the ring hangnail, and air filter and the vacuum source 81(of automobile are preferably induction maniflod respectively) be connected.
The vacuum booster unit that the embodiment of the present invention provides, comprise vacuum source (being preferably induction maniflod) 81, airfilter (be called for short: air filter) 82, the venturi valve that provides of vacuum booster 83 and the arbitrary technical scheme of the present invention, wherein:
Vacuum source 81 is connected with the port of giving vent to anger of the freeing pipe 4 of venturi valve.
Airfilter 82 is connected with the bigger diameter end mouth of the Venturi tube 2 of venturi valve.
Vacuum booster 83 is connected with the air inlet port of the extraction pipe 1 of venturi valve.
Can use air pump to be used as vacuum source 81, also can adopt other to have the device of air extracting function.
Below describe the working process of the venturi valve that optimal technical scheme of the present invention provides in detail:
Venturi valve provided by the invention is when application, lower half shell 62 1 termination vacuum source 81(left ends), another termination airfilter 82(right-hand member), due to the vacuum in vacuum source 81(induction maniflod) existence, at first near the second valve block 521 in the second boiler check valve 52 of vacuum source 81 1 ends, open, simultaneously the first valve block 511 of the first boiler check valve 51 is also opened, and now the air in vacuum booster 83 can enter vacuum source 81(by two boiler check valve namely two holes are air-breathing to vacuum booster 83 simultaneously).And owing in the first boiler check valve 51 ports, producing degree of vacuum a little more than vacuum source 81, when the degree of vacuum of the second boiler check valve 52 upper ends was greater than the degree of vacuum of vacuum source 81, the second valve block 521 was closed and is stoped other reverse inflows.Simultaneously through the air filter filtered air from airfilter 82 1 ends that connect enter, after Venturi tube 2 structures, gas flow rate is accelerated, the degree of vacuum that the first boiler check valve 51 goes out further increases, now the first valve block 511 is opened the second valve block 521 and is closed, and the air in vacuum booster 83 is by the rear inflow vacuum source 81 of the first boiler check valve 51.Thereby the large 200mbar of the degree of vacuum left and right of having caused the degree of vacuum in vacuum booster 83 to provide than vacuum source 81, this has just realized that vacuum strengthens effect.After removing vacuum source 81, the first boiler check valve 51 and the second boiler check valve 52 actvies have prevented air return, and the degree of vacuum in vacuum booster 83 can have and kept.
To sum up, the venturi valve that embodiment of the present invention optimal technical scheme provides has comprised two parts function, at first it self comprises two check valves (comprising the first boiler check valve 51 and the second boiler check valve 52), guarantee that the vacuum in vacuum booster 83 is able to effective maintenance, secondly the present invention utilizes Venturi tube 2 structures can realize effective enhancing of vacuum.
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range is only the apparent in view or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, can't be exhaustive, so the present invention just discloses part numerical value with casehistory technical scheme of the present invention, and the above-mentioned numerical value of enumerating should not form the restriction to the invention protection domain.
If used the words such as " first ", " second " to limit parts herein, those skilled in the art should know: the use of " first ", " second " is only to go up for convenience of description parts are distinguished if do not had outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if the invention described above discloses or has related to parts or the framing member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can be fixedly connected with (for example using bolt or screw to connect) with dismantling, also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously can't adopt except integrally formed technique) by integral type structure (use foundry technique is integrally formed to be created).
In addition, in the disclosed arbitrary technical scheme of the invention described above applied be used to the term that means position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts provided by the invention can be both to be assembled by a plurality of independent component parts, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. a venturi valve, is characterized in that, comprises extraction pipe, Venturi tube, connection body, freeing pipe, the first boiler check valve and at least one the second boiler check valve, wherein:
Described the first boiler check valve, described the second boiler check valve air inlet port separately all are connected with the port of giving vent to anger of described extraction pipe;
Described Venturi tube comprises bigger diameter end mouth and path port, and the caliber size of the bigger diameter end mouth of described Venturi tube is greater than the caliber size of the path port of described Venturi tube;
The port of giving vent to anger of described the first boiler check valve is connected with the path port of described Venturi tube;
Both all are connected the air inlet port of give vent to anger port and the described freeing pipe of described the second boiler check valve with the path port of described Venturi tube by described connection body.
2. venturi valve according to claim 1, is characterized in that, the direction internal diameter size along from described the first boiler check valve to described the second boiler check valve of described connection body increases gradually.
3. venturi valve according to claim 1, it is characterized in that, described Venturi tube, described connection body and described freeing pipe three's axial line coincides, and described Venturi tube, described connection body and described freeing pipe three's axial line parallels with the axial line of described extraction pipe.
4. according to the arbitrary described venturi valve of claim 1-3, it is characterized in that, described the first boiler check valve comprises the first valve block, the first sealing flange, at least two the first pillar stiffeners and at least two the first limit ribs, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on described the first boiler check valve for described the first sealing flange, and at least two described the first limit ribs are fixedly installed on described the first sealing flange inboard;
At least two described the first pillar stiffeners are fixedly installed on the port of giving vent to anger of the first boiler check valve;
In the gap of described the first valve block between described the first pillar stiffener and described the first sealing flange, and when described the first valve block was connected on described the first sealing flange, described the first valve block was connected with described the first sealing flange formation vapor seal, described the first boiler check valve cut-off.
5. venturi valve according to claim 4, is characterized in that, described the first boiler check valve comprises two described the first limit ribs, and the setting interlaced with each other of two described the first limit ribs.
6. venturi valve according to claim 4, is characterized in that, described the second boiler check valve comprises the second valve block, the second sealing flange, at least two the second pillar stiffeners and at least two the second limit ribs, wherein:
In the form of a ring, and it is around the air inlet port that is arranged on described the second boiler check valve for described the second sealing flange, and at least two described the second limit ribs are fixedly installed on described the second sealing flange inboard; At least two described the second pillar stiffeners are fixedly installed on the port of giving vent to anger of the second boiler check valve; In the gap of described the second valve block between described the second pillar stiffener and described the second sealing flange, and when described the second valve block was connected on described the second sealing flange, described the second valve block was connected with described the second sealing flange formation vapor seal, described the second boiler check valve cut-off.
7. venturi valve according to claim 6, is characterized in that, described venturi valve comprises upper half shell, lower half shell, described the first valve block and described the second valve block, wherein:
Described upper half shell and described lower half shell are fixed together;
Described the first pillar stiffener, described the second pillar stiffener, described Venturi tube, described connection body and described freeing pipe all are positioned on described lower half shell;
Described the first sealing flange, described the first limit ribs, described the second sealing flange and described the second limit ribs all are positioned on described upper half shell.
8. venturi valve according to claim 7, is characterized in that, described upper half shell and described lower half shell are made for same material and both weld togethers.
9. according to the arbitrary described venturi valve of claim 1-3, it is characterized in that, described extraction pipe, described Venturi tube and described freeing pipe are provided with the anticreep flange of at least one ring-type at least on one of them outer wall, and the outline of the cross-sectional plane of described anticreep flange is barb-like.
10. a vacuum booster unit, is characterized in that, comprises the arbitrary described venturi valve of vacuum source, airfilter, vacuum booster and claim 1-9, wherein:
Described vacuum source is connected with the port of giving vent to anger of the freeing pipe of described venturi valve;
Described airfilter is connected with the bigger diameter end mouth of the Venturi tube of described venturi valve;
Described vacuum booster is connected with the air inlet port of the extraction pipe of described venturi valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103605124A CN103407441A (en) | 2013-08-16 | 2013-08-16 | Venturi valve and vacuum power assisting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103605124A CN103407441A (en) | 2013-08-16 | 2013-08-16 | Venturi valve and vacuum power assisting device |
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| CN103407441A true CN103407441A (en) | 2013-11-27 |
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| CN2013103605124A Pending CN103407441A (en) | 2013-08-16 | 2013-08-16 | Venturi valve and vacuum power assisting device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105378240A (en) * | 2014-06-06 | 2016-03-02 | 戴科知识产权控股有限责任公司 | Noise attenuation in a venturi device and/or check valves |
| CN105408177A (en) * | 2014-07-10 | 2016-03-16 | 戴科知识产权控股有限责任公司 | Dual venturi device |
| CN106541935A (en) * | 2015-09-21 | 2017-03-29 | 上海汽车集团股份有限公司 | Automobile and its vacuum boost system, brakes |
| CN106938645A (en) * | 2016-01-04 | 2017-07-11 | 福特环球技术公司 | Method and system for the aspirator of brake booster |
| US9828953B2 (en) | 2014-12-01 | 2017-11-28 | Dayco Ip Holdings, Llc | Evacuator system having multi-port evacuator |
| US10100720B2 (en) | 2015-01-09 | 2018-10-16 | Dayco Ip Holdings, Llc | Crankcase ventilating evacuator |
| US10151283B2 (en) | 2015-02-25 | 2018-12-11 | Dayco Ip Holdings, Llc | Evacuator with motive fin |
| CN109153377A (en) * | 2016-06-14 | 2019-01-04 | 戴科知识产权控股有限责任公司 | Check-valves and Venturi with check-valves |
| US10273978B2 (en) | 2014-08-27 | 2019-04-30 | Dayco IP, Holdings LLC | Low-cost evacuator for an engine having tuned Venturi gaps |
| CN109808662A (en) * | 2017-11-20 | 2019-05-28 | (株)盛昌汽车科技 | The negative pressure aggrandizement apparatus of braking system |
| US10316864B2 (en) | 2015-04-13 | 2019-06-11 | Dayco Ip Holdings, Llc | Devices for producing vacuum using the venturi effect |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291916A (en) * | 1992-12-28 | 1994-03-08 | Excel Industries, Inc. | Check valve |
| CN1724298A (en) * | 2004-07-23 | 2006-01-25 | 福特环球技术公司 | Vacuum enhancing check valve |
| CN1923585A (en) * | 2005-08-29 | 2007-03-07 | 奇瑞汽车有限公司 | Vehicle brake auxiliary device |
| JP2007327453A (en) * | 2006-06-09 | 2007-12-20 | Advics:Kk | Ejector for negative pressure type booster |
| CN101096208A (en) * | 2006-06-26 | 2008-01-02 | 现代自动车株式会社 | Vacuum intensifier for vehicle brake |
| CN201109426Y (en) * | 2007-12-04 | 2008-09-03 | 上海汽车制动系统有限公司 | Vacuum enhancement one-way valve |
| KR20100109086A (en) * | 2009-03-31 | 2010-10-08 | 현대자동차주식회사 | Intensifier for brake |
| US20110186151A1 (en) * | 2010-02-04 | 2011-08-04 | Bernard Joseph Sparazynski | Check valve |
| CN202209234U (en) * | 2011-08-15 | 2012-05-02 | 宁波洛卡特汽车零部件有限公司 | Unidirectional flow-limiting venturi |
| CN202243435U (en) * | 2011-08-25 | 2012-05-30 | 上海大陆汽车制动系统销售有限公司 | Vacuum pressure charging valve |
| CN202764959U (en) * | 2012-08-08 | 2013-03-06 | 吉林东光奥威汽车制动系统有限公司 | Novel vacuum single-direction valve device |
| CN203460855U (en) * | 2013-08-16 | 2014-03-05 | 河北亚大汽车塑料制品有限公司 | Venturi valve and vacuum power assisting device |
-
2013
- 2013-08-16 CN CN2013103605124A patent/CN103407441A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291916A (en) * | 1992-12-28 | 1994-03-08 | Excel Industries, Inc. | Check valve |
| CN1724298A (en) * | 2004-07-23 | 2006-01-25 | 福特环球技术公司 | Vacuum enhancing check valve |
| CN1923585A (en) * | 2005-08-29 | 2007-03-07 | 奇瑞汽车有限公司 | Vehicle brake auxiliary device |
| JP2007327453A (en) * | 2006-06-09 | 2007-12-20 | Advics:Kk | Ejector for negative pressure type booster |
| CN101096208A (en) * | 2006-06-26 | 2008-01-02 | 现代自动车株式会社 | Vacuum intensifier for vehicle brake |
| CN201109426Y (en) * | 2007-12-04 | 2008-09-03 | 上海汽车制动系统有限公司 | Vacuum enhancement one-way valve |
| KR20100109086A (en) * | 2009-03-31 | 2010-10-08 | 현대자동차주식회사 | Intensifier for brake |
| US20110186151A1 (en) * | 2010-02-04 | 2011-08-04 | Bernard Joseph Sparazynski | Check valve |
| CN202209234U (en) * | 2011-08-15 | 2012-05-02 | 宁波洛卡特汽车零部件有限公司 | Unidirectional flow-limiting venturi |
| CN202243435U (en) * | 2011-08-25 | 2012-05-30 | 上海大陆汽车制动系统销售有限公司 | Vacuum pressure charging valve |
| CN202764959U (en) * | 2012-08-08 | 2013-03-06 | 吉林东光奥威汽车制动系统有限公司 | Novel vacuum single-direction valve device |
| CN203460855U (en) * | 2013-08-16 | 2014-03-05 | 河北亚大汽车塑料制品有限公司 | Venturi valve and vacuum power assisting device |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10519984B2 (en) | 2014-06-06 | 2019-12-31 | Dayco Ip Holdings, Llc | Noise attenuation in a Venturi device and/or check valves |
| CN105378240A (en) * | 2014-06-06 | 2016-03-02 | 戴科知识产权控股有限责任公司 | Noise attenuation in a venturi device and/or check valves |
| EP3152417A4 (en) * | 2014-06-06 | 2018-05-23 | Dayco IP Holdings, LLC | Noise attenuation in a venturi device and/or check valves |
| CN105378240B (en) * | 2014-06-06 | 2018-10-09 | 戴科知识产权控股有限责任公司 | Noise attentuation in Venturi and/or check-valves |
| CN105408177A (en) * | 2014-07-10 | 2016-03-16 | 戴科知识产权控股有限责任公司 | Dual venturi device |
| US10626888B2 (en) | 2014-07-10 | 2020-04-21 | Dayco Ip Holdings, Llc | Dual Venturi device |
| CN105408177B (en) * | 2014-07-10 | 2018-02-13 | 戴科知识产权控股有限责任公司 | double-venturi device |
| US10273978B2 (en) | 2014-08-27 | 2019-04-30 | Dayco IP, Holdings LLC | Low-cost evacuator for an engine having tuned Venturi gaps |
| US9828953B2 (en) | 2014-12-01 | 2017-11-28 | Dayco Ip Holdings, Llc | Evacuator system having multi-port evacuator |
| US10100720B2 (en) | 2015-01-09 | 2018-10-16 | Dayco Ip Holdings, Llc | Crankcase ventilating evacuator |
| US10151283B2 (en) | 2015-02-25 | 2018-12-11 | Dayco Ip Holdings, Llc | Evacuator with motive fin |
| US10316864B2 (en) | 2015-04-13 | 2019-06-11 | Dayco Ip Holdings, Llc | Devices for producing vacuum using the venturi effect |
| CN106541935B (en) * | 2015-09-21 | 2019-02-19 | 上海汽车集团股份有限公司 | Automobile and its vacuum boost system, braking system |
| CN106541935A (en) * | 2015-09-21 | 2017-03-29 | 上海汽车集团股份有限公司 | Automobile and its vacuum boost system, brakes |
| CN106938645A (en) * | 2016-01-04 | 2017-07-11 | 福特环球技术公司 | Method and system for the aspirator of brake booster |
| CN106938645B (en) * | 2016-01-04 | 2021-01-12 | 福特环球技术公司 | Method and system for aspirator of brake booster |
| CN109153377A (en) * | 2016-06-14 | 2019-01-04 | 戴科知识产权控股有限责任公司 | Check-valves and Venturi with check-valves |
| CN109153377B (en) * | 2016-06-14 | 2021-05-07 | 戴科知识产权控股有限责任公司 | Check valve and venturi device having a check valve |
| CN109808662A (en) * | 2017-11-20 | 2019-05-28 | (株)盛昌汽车科技 | The negative pressure aggrandizement apparatus of braking system |
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Application publication date: 20131127 |