CN104329254A - Sliding vane type pulse jet actuator - Google Patents
Sliding vane type pulse jet actuator Download PDFInfo
- Publication number
- CN104329254A CN104329254A CN201410573075.9A CN201410573075A CN104329254A CN 104329254 A CN104329254 A CN 104329254A CN 201410573075 A CN201410573075 A CN 201410573075A CN 104329254 A CN104329254 A CN 104329254A
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- CN
- China
- Prior art keywords
- rotor
- air
- cavity
- slide plate
- collecting chamber
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a sliding vane type pulse jet actuator. The sliding vane type pulse jet actuator mainly comprises a shell (1), sliding vanes (2), a rotor (3), a rotating shaft (4), an air outlet (5), an air inlet (6), an air collection cavity (7) and an air cylinder (8), wherein an air suction hole and the air outlet are formed in the shell, the outer surface of the rotor and the inner surface of the air cylinder are of round, the rotor is eccentrically mounted in the air cylinder and is geometrically tangent with the air cylinder, and the crescent air collection cavity is formed between the inner wall of the air cylinder and the outer surface of the rotor; four grooves (sliding vane grooves) of different angles are longitudinally formed in the rotor, and the sliding vanes capable of freely sliding along the radial direction are mounted in each groove; when the rotor rotates, the sliding vanes are thrown out from the grooves by virtue of the centrifugal force, and the end parts of the sliding vanes cling to the inner surface of the air cylinder to divide the air collection cavity into a plurality of fan-shaped small chambers of different sizes; along with the continuous rotation of the rotor, each cavity repeatedly expands from small to big by virtue of air suction and shrinks from big to small by virtue of exhausting, so as to generate pulse jet at the air outlet.
Description
One, technical field
The present invention relates to one flowing control actuator, particularly sliding vane pulse jet actuator that aerospace field uses.
Two, background technique
Flow control technique mainly changes flowing state by applying the physical quantitys such as power, quality, heat and electromagnetism to moving fluid, thus also changes stress or the motion state of flowing object.Flowing control is hydromechanical advanced problems, is divided into passive flowing to control and active Flow Control.The Performance comparision of passive flow control technique is reliable, be easy to realize, but when actual situation off-design state, its control effects will be deteriorated, and active Flow Control is a kind of control mode introduced by auxiliary energy, in flowing environment, directly inject suitable energy or perturbation mode, thus occur to interact with the inherent pattern of system and reach control object.Relative to Passive Control, mainly there are two large advantages in ACTIVE CONTROL: 1, by the injection of the energy of small scale, local, especially the control of Near The Critical Point is reached to the effect of fluidal texture changing the whole audience.As the control of twisting in boundary layer turn; 2, accurately phase control can being carried out to the dynamical system of complexity, as controlled the generation of turbulent flow, effectively reducing surface friction drag.
Air blowing and air-breathing are one of main method of active Flow Control technology.It is found that, by seeing at the spanwise blowing of wing wingtip, the similar prolongation span can be played and reach the effect increasing lift.Utilize the air-breathing of the leading edge of a wing and the air blowing of trailing edge, the flowing in aerofoil surface boundary layer is intervened, can the separation of effective Delay boundary conditions intrastratal flow, increase aerofoil surface laminar region, thus reach the object of lift-rising drag reduction.Engine inlets, lifting airscrew, turbine cascade etc. also have the situation utilizing air blowing and suction technology to carry out active Flow Control.
Existing actuator type has several as follows:
A. acoustically-driven formula actuator, utilizes acoustics rectifying effect, needs generating means to work, and the noise produced when working is comparatively large, and the jet ability of generation is also little.
B. piston type drives actuator, and the jet energy of generation is comparatively large, needs to click and conveying means, complex structure.
C. piezoelectricity membrane type actuator, the frequency band of work is wider, and structure is relatively simple, but requires relatively high to processing technique.
D. to make dynamic formula actuator jet energy higher for marmem, but frequency of okperation is low, and the operating life of component is short.
Three, summary of the invention
The invention provides a kind of sliding vane pulse jet actuator, the design of sliding-vane compressor structural feature is utilized to invent a kind of Novel sliding chip pulse jet actuator, to solve the technical problem that in existing actuator, jet energy is low, efficiency is low, cost is high and design is complicated.The technical solution adopted in the present invention is as follows:
A kind of sliding vane pulse jet actuator, it is primarily of compositions such as housing 1, slide plate 2, rotor 3, rotating shaft 4, relief opening 5, suction port 6, air collecting chamber 7, cylinders 8.Housing 1 has suction port 5 and relief opening 6, in housing 1, have cylinder 8.Rotor 3 bias be arranged in cylinder 8, formed air collecting chamber 7; Rotor has four radial grooves in different amount, the slide plate 2 that can radially be free to slide is housed in each groove, and the angle between every two grooves distributes alternately according to 60 °, 120 °, 60 °, 120 °, forms the air collecting chamber 7 of different operating volume.
When prime mover rotor driven rotates, due to the effect of centrifugal force, slide plate is thrown out of, and is close on cylinder surfaces, and the sealed cavity that adjacent two slide plates, rotor outer surface, cylinder surfaces are formed becomes a cell; Four corresponding central angles of cell are followed successively by 60 °, 120 °, 60 °, 120 °.Within rotor rotates a circle, each air collecting chamber volume will become large gradually by minimum value, complete expansion air-breathing; Diminished gradually by maximum value again, complete compression exhaust, move in circles.
Further improvement of the present invention is, the corresponding central angle of adjacent two cells is not identical, then air collecting chamber volume is different.When being switched to large volume by little volume, ideal pulse pneumatic can be produced as required, and rotor only at the uniform velocity need operate, and forms disturbance more fully, is easy to realize active Flow Control.
Further improvement of the present invention is, cylinder profile and molded lines of rotor all adopt circle, different from other similar inventions, simple structure, reduces friction, is easy to processing and assembling, and increases work efficiency.
Further improvement of the present invention is the central angle by changing corresponding to rotor, and the jet fluctuation intensity required for acquisition, makes active Flow Control become and be more prone to.
Beneficial effect
A. the rotor of existing sliding-vane compressor can be pressed patent requirements repacking, can well be cost-saving.
B. structure is simple, response is rapid, favorable repeatability, and is easy to microminiaturized, because the design of circular molded line, reduce friction, so noise is low, efficiency is high.
C. the present invention verifies through many experiments, and rotor can obtain obvious pulsing airflow under uniform rotation state.
Four, accompanying drawing explanation
Fig. 1: the schematic cross-section of actuator
Fig. 2: the operating diagram of actuator
Wherein 1 housing, 2 slide plates, 3 rotors, 4 rotating shafts, 5 relief openings, 6 suction ports, 7 air collecting chambers, 8 cylinders.
Five, embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, but they are not to further restriction of the present invention.
Shown in the schematic cross-section seeing accompanying drawing 1 actuator, be made up of housing 1, slide plate 2, rotor 3 and rotating shaft 4 etc.Housing 1 has suction port 6 and relief opening 5, in housing, have cylinder 8.Being arranged in cylinder 8 of rotor eccentricity, makes the two on solid, keep tangent, forms air collecting chamber 7; Rotor 3 has four longitudinal flutings in different amount, the slide plate 2 that can longitudinally be free to slide is housed in each groove, and when rotor 3 rotates, slide plate 2 throws away from groove by the effect of centrifugal force, cylinder 8 is close on the surface in its end, air collecting chamber is divided into four not isometric fan-shaped cells.Along with the rotation of rotor, the change that air collecting chamber volume size differs.And due to four air collecting chamber volume size differences, so the gas jet intensity that each air collecting chamber is discharged through air outlet is different, thus form pulse pneumatic, change slide plate angle, parameter can also regulate and control as required, realize active Flow Control in various degree.
When cavity volume increases, communicate with suction port 6, suction gas, until volume reaches maximum value, inspiration end when a rear slide plate 4 (relative to sense of rotation, referred to as rear slide plate) crosses the top edge of intakeport 6.Then, volume starts to reduce with the rotation of rotor 3, and gas is compressed.When previous slide plate 4 (before being called for short slide plate) reaches relief opening 5 top edge, cavity starts to communicate with relief opening 5, then compression process terminates, and exhaust starts.When rear slide plate crosses the lower limb of relief opening 5, exhaust stops.Afterwards, cavity volume reaches minimum value.Rotor 3 continues to rotate, and volume starts again to increase, and stays the high pressure gas expansion in clearance volume.After current slide plate reaches intakeport 6 lower limb, cavity communicates with intakeport 5 again, again suction gas.
Claims (4)
1. a sliding vane jet-flow excitor, is made up of housing, rotor, rotating shaft, slide plate, cylinder, air collecting chamber, suction port and relief opening etc., housing has suction port and relief opening, rotor eccentricity be arranged in cylinder, formed air collecting chamber; Rotor has four radial grooves in different amount, the slide plate that can longitudinally be free to slide is housed in each groove, when rotor rotates, slide plate throws away from groove by the effect of centrifugal force, its end is close on cylinder surface, air collecting chamber is divided into four fan-shaped cells, along with the rotation of rotor, small one and large one change that air collecting chamber volume goes round and begins again.
2. the actuator as described in right 1, when air collecting chamber volume increases, communicates with intakeport, suction gas, until volume reaches maximum value, forms a rear slide plate of this basic circle, inspiration end when crossing the top edge of intakeport, then, air collecting chamber volume starts to reduce with the rotation of rotor, and gas is compressed in cavity, when the previous slide plate forming this cavity volume reaches relief opening top edge, cavity starts to communicate with relief opening, then compression process terminates, and exhaust starts.When rear slide plate crosses the lower limb of relief opening, exhaust stops, afterwards, cavity volume reaches minimum value, and rotor continues to rotate, and cavity volume starts again to increase, stay the high pressure gas expansion in clearance volume, when slide plate before cavity reaches after intakeport lower limb, this cavity communicates with intakeport again, again suction gas.
3. as described in right 2, cylinder internal rotor has four radial grooves, angle between every two grooves distributes alternately according to 60 °, 120 °, 60 °, 120 °, when different amount turn over air outlet, because the volume of air collecting chamber is different, so the gas of discharging is not evenly give vent to anger, but in pulse pneumatic, more easily form disturbance, realize active Flow Control.
4. as described in right 1, the molded line of cylinder surfaces and rotor outer surface is circular cavity, and inner rotator adopts eccentric installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573075.9A CN104329254A (en) | 2014-10-24 | 2014-10-24 | Sliding vane type pulse jet actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573075.9A CN104329254A (en) | 2014-10-24 | 2014-10-24 | Sliding vane type pulse jet actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329254A true CN104329254A (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410573075.9A Pending CN104329254A (en) | 2014-10-24 | 2014-10-24 | Sliding vane type pulse jet actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329254A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751288A (en) * | 2019-01-16 | 2019-05-14 | 哈尔滨工业大学 | Low reaction degree compressor nonstationary oscillation inhales blowing apparatus |
| CN112081798A (en) * | 2020-09-08 | 2020-12-15 | 武汉理工大学 | Vortex ring generator based on centrifugation and electromagnetic ejection |
-
2014
- 2014-10-24 CN CN201410573075.9A patent/CN104329254A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751288A (en) * | 2019-01-16 | 2019-05-14 | 哈尔滨工业大学 | Low reaction degree compressor nonstationary oscillation inhales blowing apparatus |
| CN109751288B (en) * | 2019-01-16 | 2020-10-30 | 哈尔滨工业大学 | Unsteady oscillation suction-blowing device of low-reverse-force compressor |
| CN112081798A (en) * | 2020-09-08 | 2020-12-15 | 武汉理工大学 | Vortex ring generator based on centrifugation and electromagnetic ejection |
| CN112081798B (en) * | 2020-09-08 | 2022-01-11 | 武汉理工大学 | Vortex ring generator based on centrifugation and electromagnetic ejection |
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Application publication date: 20150204 |