CN203460855U - Venturi valve and vacuum power assisting device - Google Patents
Venturi valve and vacuum power assisting device Download PDFInfo
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- CN203460855U CN203460855U CN201320502691.6U CN201320502691U CN203460855U CN 203460855 U CN203460855 U CN 203460855U CN 201320502691 U CN201320502691 U CN 201320502691U CN 203460855 U CN203460855 U CN 203460855U
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Abstract
The utility model discloses a venturi valve and a vacuum power assisting device, which relate to the technical field of automobiles, and solve the technical problem that a treading pedal easily becomes slightly hard when an automobile is braked due to the fact that the vacuum degree of the interior of the existing vacuum power assisting device is relatively low in the prior art. The venturi valve comprises an exhaust tube, a venturi tube, a connecting tube body, a vent tube, a first check valve and at least one second check valve, wherein respective air inlet ports of the first check valve and the second check valve are connected with the air outlet port of the exhaust tube, the air outlet port of the first check valve is communicated with the small-diameter port of the venturi tube, and the air outlet port of the second check valve is communicated with the small-diameter port of the venturi tube through the connecting tube. The vacuum power assisting device comprises a power source, an air filter, a power booster and the venturi valve provided by any one technical scheme of the utility model. The venturi valve is used for improving the vacuum degree of the vacuum power assisting device.
Description
Technical field
The utility model relates to automobile technical field, and being specifically related to can be for a kind of venturi valve in 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 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 provides vacuum.The vacuum source of induction maniflod is breathing process when engine piston crank motion.
Safety and the reliability of the reasonableness of vacuum booster unit design when directly having influence on automobile brake.In prior art, the vacuum that automobile touch driving engine self produces comes 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 cannot meet the needs of each system of automobile to vacuum.
At least there is following technical matters 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.
Utility model content
The purpose of this utility model is the vacuum booster unit that proposes a kind of venturi valve and this venturi valve is set, and has solved prior art and has existed the degree of vacuum in vacuum booster unit lower, steps on the technical matters that pedal is prone to partially hard phenomenon while causing automobile brake.
For achieving the above object, the utility model provides following technical scheme:
The venturi valve that the utility model embodiment provides, 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 are all 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 are all 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.
At one, 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 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 and the axial line of described extraction pipe parallel.
At one, 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, 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 inner side;
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 described in when described the first valve block is connected on described the first sealing flange, the first valve block is connected with described the first sealing flange formation vapor seal, described the first boiler check valve cut-off.
At one, 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, 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 inner side; 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 described in when described the second valve block is connected on described the second sealing flange, the second valve block is connected with described the second sealing flange formation vapor seal, described the second boiler check valve cut-off.
At one, 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, 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 are all 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 are all positioned on described upper half shell.
At one preferably or alternatively in embodiment, described upper half shell and described lower half shell are made and both weld togethers for same material.
At one preferably or alternatively in embodiment, described extraction pipe, described Venturi tube and described freeing pipe are at least provided with the anticreep flange of at least one ring-type 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 utility model embodiment provides, comprises the venturi valve that the arbitrary technical scheme of vacuum source, airfilter, vacuum booster and the utility model 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 utility model embodiment at least can produce following technique effect:
In the venturi valve that the utility model embodiment 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, when vacuum source is started working and extracts the air in venturi valve, because 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 having the negative pressure that vacuum source provides, 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 degree of vacuum in venturi valve be greater than the degree of vacuum of vacuum source, improved thus the ability vacuumizing 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.
The optimal technical scheme that the utility model provides at least can produce following technique effect:
More than the degree of vacuum that the venturi valve that plastic material is made can produce driving engine further strengthens 200mbar, its vacuum that automobile self is produced strengthens, 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 there is partially hard phenomenon 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 reliable the supplementing that existing electronic vacuum pump strengthens as vacuum, improved reliability, the economy of brake system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The schematic diagram of the venturi valve that Fig. 1 provides for a kind of embodiment of the utility model embodiment;
Fig. 2 is the cross-sectional schematic of venturi valve shown in Fig. 1;
The schematic diagram of the venturi valve that Fig. 3 provides for the another kind of embodiment of the utility model embodiment;
Fig. 4 is the cross-sectional schematic of venturi valve shown in Fig. 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 utility model embodiment;
The schematic diagram of the principle of work of the venturi valve that Fig. 6 provides for the utility model embodiment;
When in the venturi valve that Fig. 7 provides for the utility model embodiment, the first boiler check valve and the second boiler check valve are all opened, vacuum source extracts 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 utility model embodiment, 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
Can understand the distinctive points between content of the present utility model and the utility model and prior art with reference to accompanying drawing Fig. 1～Fig. 8 and word content below.Below, by accompanying drawing and the mode of enumerating optional embodiment more of the present utility model, the technical solution of the utility model (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, cannot exhaustive all alternative technical characterictics of the present utility model and alternative technical scheme in order to describe succinct need in presents, also the embodiment that is not easy to each technical characterictic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means that the utility model can be provided is replaced or any two or more technological means or technical characterictic that the utility model is provided combine mutually and obtain new technical scheme.Any technical characterictic in the present embodiment and any technical scheme all do not limit protection domain of the present utility model, protection domain of the present utility model should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art any two or more technological means that the utility model is provided or technical characterictic combine mutually and the new technical scheme that obtains.
The utility model embodiment 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.
Technical scheme the utility model being provided below in conjunction with Fig. 1～Fig. 8 is carried out more detailed elaboration.
As shown in Fig. 1～Fig. 8, the venturi valve that the utility model embodiment provides, comprises extraction pipe 1, Venturi tube 2, connects 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 are all connected with the port of giving vent to anger of extraction pipe 1.The port of giving vent to anger being connected from the first boiler check valve 51, the second boiler check valve 52 air inlet port separately can be also 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 are all 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, when vacuum source 81 is started working and extracts the air in venturi valve, because 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 having the negative pressure that vacuum source 81 provides, 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 degree of vacuum in venturi valve be greater than the degree of vacuum of vacuum source 81, improved thus the ability vacuumizing of vacuum source 81.
As preferably a kind of or embodiment alternatively, connect body 3 along increasing gradually from the direction internal diameter size of the first boiler check valve 51 to second boiler check valve 52.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, is convenient to manufacture, and the resistance that is conducive to reduce the Venturi tube 2 of flowing through, connects 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 inner sides.
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 is connected on the first sealing flange 512, the first valve block 511 is 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 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 is connected on the first sealing flange 512, the first valve block 511 is 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 inner sides.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 form vapor seals with the second sealing flange 522 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 utility model 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 to consist of the sealing flange of upper half shell 61, valve block and lower half shell 62 pillar stiffener three parts.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 is 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 high-quality imported materials and items, and flame resistance and mechanicalness are all very good.Guarantee that 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, stop air (to be called for short: air filter) 82 directions flow towards vacuum booster 83 directions, and to guarantee that the vacuum of vacuum booster 83 can keep by actv. from vacuum source 81 directions or airfilter.
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 are all 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 are all 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 at least provided with the anticreep flange 7 of at least one (being preferably a plurality of) ring-type on one of them outer wall, and the outline of the cross-sectional plane of anticreep flange 7 is barb-like.
Anticreep flange 7 can avoid the adaptor union being connected with extraction pipe 1, Venturi tube 2 and freeing pipe 4 to get loose, thus reliability and leak tightness that 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 by PA pipe and being connected with vacuum booster 83, lower half shell 62 two ends are all designed with 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 utility model embodiment 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 utility model, 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 there is the device of air extracting function.
Describe the working process of the venturi valve that the utility model optimal technical scheme provides below in detail:
The venturi valve that the utility model provides 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, first near the second valve block 521 in second boiler check valve 52 of vacuum source 81 one end, 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 two holes are simultaneously air-breathing to vacuum booster 83).And owing to producing degree of vacuum a little more than vacuum source 81 in the first boiler check valve 51 ports, when the degree of vacuum of the second boiler check valve 52 upper ends is greater than the degree of vacuum of vacuum source 81, the second valve block 521 is closed and is stoped other oppositely to flow into.Simultaneously through air filter filtered air from airfilter 82 one end 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 that has caused the degree of vacuum in vacuum booster 83 to provide than vacuum source 81 left and right, this has just realized vacuum and has strengthened 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 degree of vacuum in vacuum booster 83 can have and kept.
To sum up, the venturi valve that the utility model embodiment optimal technical scheme provides has comprised two parts function, 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 utility model utilizes Venturi tube 2 structures can realize effective enhancing of vacuum.
Above-mentioned arbitrary technical scheme disclosed in the utility model 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 obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, cannot be exhaustive, so the utility model just discloses part numerical value with casehistory the technical solution of the utility model, and the above-mentioned numerical value of enumerating should not form the restriction of the utility model being created to 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 used to be convenient to describe above parts are distinguished as not having outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if above-mentioned the utility model 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 dismantle and be fixedly connected with (for example using bolt or screw to connect), 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 cannot 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 above-mentioned the utility model applied for the term that represents position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts that the utility model provides 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 the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model 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 are all 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 are all 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 and the axial line of described extraction pipe parallel.
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 inner side;
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 described in when described the first valve block is connected on described the first sealing flange, the first valve block is 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 inner side; 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 described in when described the second valve block is connected on described the second sealing flange, the second valve block is 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 are all 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 are all 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 and both weld togethers for same material.
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 at least provided with the anticreep flange of at least one ring-type 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 |
|---|---|---|---|
| CN201320502691.6U CN203460855U (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 |
|---|---|---|---|
| CN201320502691.6U CN203460855U (en) | 2013-08-16 | 2013-08-16 | Venturi valve and vacuum power assisting device |
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| CN203460855U true CN203460855U (en) | 2014-03-05 |
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| CN201320502691.6U Expired - Lifetime CN203460855U (en) | 2013-08-16 | 2013-08-16 | Venturi valve and vacuum power assisting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407441A (en) * | 2013-08-16 | 2013-11-27 | 河北亚大汽车塑料制品有限公司 | Venturi valve and vacuum power assisting device |
| CN105383476A (en) * | 2015-12-28 | 2016-03-09 | 浙江吉利汽车研究院有限公司 | Vacuum degree amplifying device for automobile braking system vacuum booster |
| CN108273805A (en) * | 2018-04-09 | 2018-07-13 | 上汽大众汽车有限公司 | Culvert type vacuum generator and its vacuum tubings |
| CN110962824A (en) * | 2019-12-31 | 2020-04-07 | 奇瑞汽车股份有限公司 | Venturi valve |
-
2013
- 2013-08-16 CN CN201320502691.6U patent/CN203460855U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407441A (en) * | 2013-08-16 | 2013-11-27 | 河北亚大汽车塑料制品有限公司 | Venturi valve and vacuum power assisting device |
| CN105383476A (en) * | 2015-12-28 | 2016-03-09 | 浙江吉利汽车研究院有限公司 | Vacuum degree amplifying device for automobile braking system vacuum booster |
| CN105383476B (en) * | 2015-12-28 | 2018-05-11 | 浙江吉利汽车研究院有限公司 | A kind of vacuum amplifying device of brake system of car vacuum booster |
| CN108273805A (en) * | 2018-04-09 | 2018-07-13 | 上汽大众汽车有限公司 | Culvert type vacuum generator and its vacuum tubings |
| CN110962824A (en) * | 2019-12-31 | 2020-04-07 | 奇瑞汽车股份有限公司 | Venturi valve |
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