CN109340433A - A kind of low flow resistance sequence pressurization switch valve structure - Google Patents
A kind of low flow resistance sequence pressurization switch valve structure Download PDFInfo
- Publication number
- CN109340433A CN109340433A CN201811520975.1A CN201811520975A CN109340433A CN 109340433 A CN109340433 A CN 109340433A CN 201811520975 A CN201811520975 A CN 201811520975A CN 109340433 A CN109340433 A CN 109340433A
- Authority
- CN
- China
- Prior art keywords
- valve
- flow resistance
- low flow
- valve body
- valve structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The present invention provides a kind of low flow resistance sequence pressurization switch valve structures, including valve, the valve is butterfly valve structure pattern, its inside nominal diameter is greater than pipeline diameter, valve and upstream junction are the diffuser of gradual-enlargement type, valve and downstream pipe junction are tapering type expansion arc, the selection gist of valve inside nominal diameter are as follows: the equivalent diameter of valve minimum flow area is not less than pipeline diameter when butterfly plate standard-sized sheet.When gas flows through valve, energy loss caused by being reduced to a certain extent because of throttling.
Description
Technical field
The invention belongs to turbocharging technology fields, more particularly, to a kind of low flow resistance sequence pressurization switch valve structure.
Background technique
Exhaust-driven turbo-charger exhaust-gas turbo charger is compressed in fresh air to cylinder using the energy driving of engine discharge exhaust gas,
Under the conditions of same engine discharge capacity, increasing air input of engine by air fires it sufficiently to match the more fuel oils of engine spray
It burns, reaches and propose high-power purpose, be widely used on the internal-combustion piston engines such as gasoline engine, diesel engine at present.
With engine power density reinforcing and emission regulation it is increasingly stringent, separate unit boosted flow range it is relatively narrow without
Method meets the work requirements of the full territorial environment of engine, and sequence pressure charging system can achieve the purpose that wide range of flow, but need
Switching valve is wanted to cooperate its work.
Due to the characteristics of butterfly valve driving moment is small, reliable operation, sequence is pressurized switching valve frequently with butterfly valve pattern, but by
It is present in pipeline in butterfly plate, even if can also generate the effect of throttling in standard-sized sheet, loss when gas being caused to flow through valve body
More energy.
Summary of the invention
In consideration of it, the present invention is directed to propose a kind of low flow resistance sequence pressurization switch valve structure, when gas flows through valve body,
Energy loss caused by being reduced to a certain extent because of throttling.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of low flow resistance sequence pressurization switch valve structure, including valve body, use butterfly valve structure pattern, inside nominal diameter is greater than
The caliber of place pipeline, valve body and upstream junction are the diffuser of gradual-enlargement type, and valve body and downstream pipe junction are gradually
The expansion arc of contracting formula.
Further, the inside nominal diameter of the valve body meets the following conditions, when butterfly plate standard-sized sheet, valve body minimum flow area
Equivalent diameter is not less than pipeline diameter.
Further, the angle of flare α value range of the diffuser is 5 °~6 ° 30 '.
Further, the value of the angle of throat β of the expansion arc is not more than α.
Compared with the existing technology, present invention has the advantage that
The inside nominal diameter of conventional sequence pressurization switching valve body is often selected as pipeline diameter, even if when butterfly plate standard-sized sheet,
Also due to the influence of throttling leads to biggish energy loss, in contrast, the present invention is by selecting reasonable valve body nominal logical
Diameter, and the changeover portion of reasonable valve body and line connection is designed, it greatly reduces gas and flows through the energy generated when valve body
Loss.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is low flow resistance sequence pressurization switch valve structure schematic diagram of the present invention；
Fig. 2 is the embodiment of the present invention working state schematic representation.
Description of symbols:
1- upstream；2- diffuser；3- valve body；4- butterfly plate；5- expansion arc；6- downstream pipe；7, switching valve；C- pressurization
Device is calmed the anger generator terminal；T- booster turbine end；Arrow represents airflow direction in figure.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of low flow resistance sequence pressurization switch valve structure, as shown in Figure 1, the inside nominal diameter Dn of valve body 3 is greater than place pipeline
Caliber D, so that valve body 3 and 1 junction of upstream are the diffuser 2 of gradual-enlargement type, valve body 3 is with 6 junction of downstream pipe
Tapering type expansion arc 5.
The selection gist of the 3 inside nominal diameter Dn of valve body is, when 4 standard-sized sheet of butterfly plate, the equivalent of the minimum flow area of valve body 3 is straight
Diameter is not less than pipeline diameter D.
The angle of flare α value range of the diffuser 2 is 5 °~6 ° 30 '.
The value of the angle of throat β of the expansion arc 5 is not more than α.
Low flow resistance sequence pressurization switch valve structure of the invention, it is structurally reasonable, gas can be greatly reduced and flow through valve body
When the energy loss that generates.
When engine operating condition needs controlled boost device to work, switching valve 7 is opened, and engine exhaust flows through switching valve at this time
7 provide the air of abundance so that compressor be driven to do work to booster turbine end, then promotion turbine acting for engine, but
It is that exhaust has throttling when flowing through valve body, leads to additional energy loss, it, can to reduce this partition losses to the greatest extent
Using low flow resistance switch valve structure of the invention, so that exhaust energy is more fully utilized.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of low flow resistance sequence pressurization switch valve structure, it is characterised in that: including valve body (3), butterfly valve structure pattern is used,
Inside nominal diameter is greater than the caliber of place pipeline, and valve body (3) and upstream (1) junction are the diffuser (2) of gradual-enlargement type, valve body
It (3) is tapering type expansion arc (5) with downstream pipe (6) junction.
2. low flow resistance sequence pressurization switch valve structure according to claim 1, it is characterised in that: the public affairs of the valve body (3)
Latus rectum is claimed to meet the following conditions, when butterfly plate (4) standard-sized sheet, the equivalent diameter of valve body (3) minimum flow area is not less than pipeline diameter
D。
3. low flow resistance sequence pressurization switch valve structure according to claim 1, it is characterised in that: the diffuser (2)
Angle of flare α value range is 5 °~6 ° 30 '.
4. low flow resistance sequence pressurization switch valve structure according to claim 1, it is characterised in that: the expansion arc (5)
The value of angle of throat β is not more than α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520975.1A CN109340433A (en) | 2018-12-12 | 2018-12-12 | A kind of low flow resistance sequence pressurization switch valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520975.1A CN109340433A (en) | 2018-12-12 | 2018-12-12 | A kind of low flow resistance sequence pressurization switch valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340433A true CN109340433A (en) | 2019-02-15 |
Family
ID=65303679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811520975.1A Pending CN109340433A (en) | 2018-12-12 | 2018-12-12 | A kind of low flow resistance sequence pressurization switch valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340433A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4079746A (en) * | 1975-12-24 | 1978-03-21 | Keystone International, Inc. | Valve assembly having adapter means |
| US4944325A (en) * | 1988-11-29 | 1990-07-31 | Inco Limited | Butterfly valve for erosive fluid streams |
| CN2104351U (en) * | 1991-06-24 | 1992-05-13 | 天津市第一阀门厂 | Central-line double-flange butterfly valve |
| KR20010054965A (en) * | 1999-12-08 | 2001-07-02 | 김명술 | Apparatus for preventing an overflow and oil supplying system adopting the same |
| CN104405931A (en) * | 2014-09-17 | 2015-03-11 | 王伟刚 | Oil fume check valve for range hood |
| GB2530094A (en) * | 2014-09-15 | 2016-03-16 | Intelligent Energy Ltd | Valve assembly |
-
2018
- 2018-12-12 CN CN201811520975.1A patent/CN109340433A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4079746A (en) * | 1975-12-24 | 1978-03-21 | Keystone International, Inc. | Valve assembly having adapter means |
| US4944325A (en) * | 1988-11-29 | 1990-07-31 | Inco Limited | Butterfly valve for erosive fluid streams |
| FI93895C (en) * | 1988-11-29 | 1995-06-12 | Inco Ltd | Flap valve for consumable fluid flows |
| CN2104351U (en) * | 1991-06-24 | 1992-05-13 | 天津市第一阀门厂 | Central-line double-flange butterfly valve |
| KR20010054965A (en) * | 1999-12-08 | 2001-07-02 | 김명술 | Apparatus for preventing an overflow and oil supplying system adopting the same |
| GB2530094A (en) * | 2014-09-15 | 2016-03-16 | Intelligent Energy Ltd | Valve assembly |
| CN104405931A (en) * | 2014-09-17 | 2015-03-11 | 王伟刚 | Oil fume check valve for range hood |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2037098B1 (en) | Turbo compound internal combustion engine | |
| CN102425488B (en) | Adjustable two-stage supercharging sequential system applied to V-shaped diesel engine | |
| US20190277225A1 (en) | Exhaust gas recirculation system for gasoline engine and control method thereof | |
| KR900702184A (en) | Supercharged internal combustion engine with multiple exhaust gas superchargers operating in parallel | |
| CN105545411A (en) | Crankcase ventilation for turbocharged engine | |
| CN207131503U (en) | Canister desorption apparatus and automobile | |
| CN103615309A (en) | All-work-condition adjustable two-stage pressurizing system of internal combustion engine | |
| CN104018961B (en) | The air inlet pipeline system of a kind of engine with supercharger and air inlet bypass valve | |
| CN109339938A (en) | Three condition two-stage consecutive pressurization system and its control method | |
| US20150082789A1 (en) | Two-stage turbocharger system | |
| CN107060989B (en) | Three stage of the three turbocharger sequential turbocharging device and its control method of function are realized with EGR | |
| CN101413423A (en) | Module type multifunctional pulse conversion turbocharging system | |
| CN109340433A (en) | A kind of low flow resistance sequence pressurization switch valve structure | |
| CN102400777B (en) | Single-vortex double-air compressor turbine pressurizing system with air escape valves | |
| JP6287148B2 (en) | Engine supercharging system | |
| CN102400778A (en) | Serial-parallel adjustable single-vortex double-pressure turbocharging system | |
| CN102418593A (en) | Single-vortex double-pressure turbocharging system | |
| CN109838301A (en) | The turbocharger of two-step supercharging | |
| CN104533599A (en) | Two-stage adjustable pressurization system of internal combustion engine | |
| US20170234279A1 (en) | Guide element for a pressure system of an internal combustion engine, pressure system for an intake tract of an internal combustion engine, and internal combustion engine with a supercharging unit | |
| CN218816689U (en) | Venturi tube device of supercharged engine | |
| US6422215B1 (en) | Exhaust gas re-circulation system with an integrated catalytic converter | |
| WO2017105525A1 (en) | Twin scroll turbocharger with waste heat recovery | |
| CN213331270U (en) | Turbocharger suitable for high-low pressure EGR system | |
| CN100402809C (en) | Internal-combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |
|
| RJ01 | Rejection of invention patent application after publication |