CN201696165U - Pulse detonation engine with side-intake rotating drum - Google Patents
Pulse detonation engine with side-intake rotating drum Download PDFInfo
- Publication number
- CN201696165U CN201696165U CN2010202054732U CN201020205473U CN201696165U CN 201696165 U CN201696165 U CN 201696165U CN 2010202054732 U CN2010202054732 U CN 2010202054732U CN 201020205473 U CN201020205473 U CN 201020205473U CN 201696165 U CN201696165 U CN 201696165U
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- trapezoidal
- rotary drum
- detonation chamber
- detonation
- inlet
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Abstract
The utility model provides a pulse detonation engine with a side-intake rotating drum. The pulse detonation engine comprises a front bearing, a rear bearing, a rotating drum component, a detonation chamber inner drum, a detonation chamber outer drum and a front flange of the engine, wherein the front and the rear bearings are arranged at the front and the rear ends of the engine respectively; the rotating drum component is mounted on the front and the rear bearings and can rotate freely; the detonation chamber inner drum and the detonation chamber outer drum are mounted on the front end cover of the engine; a plurality of ladder-shaped intake holes are formed on the rotating drum component and the detonation chamber inner drum respectively, and the detonation chamber outer drum is uniformly divided by partition plates into a plurality of detonation tubes. The pulse detonation engine adopts the side-intake rotating drum to greatly increase the intake area per unit time of the detonation chamber. Besides, the back-pressure of the detonation chamber doesn't act on the rotating drum, and therefore, the risk of deformation of the rotating drum during the operation is reduced.
Description
Technical field
The utility model relates to the aviation machine technical field, particularly a kind of rotary drum pulse-knocking engine of side direction air inlet.
Background technique
At present, pulse-knocking engine is a kind of intermittently used new work engine, control intermittently air inlet system is generally mechanical valve and pneumatic valve, wherein mechanical valve is many based on the rotational structure valve, air-flow is through the perforate of valve, axially enter detonation chamber, under the high speed rotating of valve, be difficult to obtain enough mixed gas loadings in this intake method, detonation chamber, again because the existence of detonation chamber booster perpendicular to valve, increased the obstruction ratio of firing chamber, the Flow area that makes detonation chamber effectively fill reduces, and the mixed gas of setting is filled length needs the very long cold conditions filling time just can finish, in this long filling process, detonation chamber not only can not produce effective positive thrust, and cold airflow also can pull system's generation on the contrary, after detonation chamber detonates, on the direct acting valve body of back-pressure, under the effect of valve body long time period load, be easy to generate distortion, and the active force that causes of this back-pressure makes the variation of thrust bearing property loading period, the unstability of rotary component increases thereupon.
The model utility content
The purpose of this utility model is intended to solve above-mentioned technological deficiency, and the mixed gas loading deficiency and the detonation chamber back-pressure that particularly solve perpendicular to the valve air inlet act directly on the problem that valve body makes that valve is easily deformable.
The utility model proposes a kind of rotary drum pulse-knocking engine of side direction air inlet, comprising: the fore bearing and the rear bearing that lay respectively at described motor front end and back end; Be installed on described fore bearing and the rear bearing, and the rotary drum assembly that can rotate freely; Be installed in detonation chamber inner core and detonation chamber urceolus that described motor head covers; Forward flange with described motor; Wherein, be formed with a plurality of trapezoidal inlet holes respectively on described rotary drum assembly and the described detonation chamber inner core, described detonation chamber urceolus is divided into a plurality of detonation tubes equably by dividing plate.
In an embodiment of the present utility model, when the trapezoidal inlet hole of described rotary drum assembly and the detonation tube inlet hole on the described detonation chamber urceolus at once, described detonation tube begins air inlet and fills, and when the inlet hole of described detonation tube will be rotated tube and block, described detonation tube igniting, and trigger detonation wave.
In an embodiment of the present utility model, has default gap between described rotary drum assembly and the detonation chamber inner core.
In an embodiment of the present utility model, the described rotary drum assembly circumferentially direction of symmetry is provided with two groups of trapezoidal holes, every group of trapezoidal hole comprises a plurality of trapezoidal inlet holes, and the height of first and last trapezoidal inlet hole is different with the height of other trapezoidal inlet holes in every group of trapezoidal hole.
In an embodiment of the present utility model, the quantity of described trapezoidal inlet hole is 7, and wherein, the height of first and last trapezoidal inlet hole is respectively 40mm and 55mm, and the height of other 5 trapezoidal inlet holes is 75mm.
In an embodiment of the present utility model, on described detonation chamber inner core circumferentially all should be provided with many group trapezoidal holes, every group of trapezoidal hole comprises a plurality of trapezoidal inlet holes, and the height of last trapezoidal inlet hole is different with the height of other trapezoidal inlet holes in every group of trapezoidal hole.
In an embodiment of the present utility model, described detonation chamber inner core is provided with 6 groups of trapezoidal holes, and every group of trapezoidal hole comprises 7 trapezoidal inlet holes, and wherein, the height of last trapezoidal inlet hole is 20mm, and the height of other trapezoidal inlet holes is 75mm.
In an embodiment of the present utility model, comprise 6 detonation tubes on the described detonation chamber urceolus.
The utility model adopts the rotary drum of side direction air inlet, can increase detonation chamber greatly at the air inlet area of unit time, and simultaneously, back-pressure can not act on the rotary drum in the detonation chamber, therefore can also reduce the risk of being out of shape in the rotary drum work.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the structural drawing of rotary drum pulse-knocking engine of the utility model embodiment's side direction air inlet;
Fig. 2 is the distribution schematic diagram in the hole on the rotary drum assembly in the utility model;
Fig. 3 is the distribution schematic diagram in the hole on the detonation chamber inner core in the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
As shown in Figure 1, be the structural drawing of the rotary drum pulse-knocking engine of the utility model embodiment's side direction air inlet.This motor comprises the front-end bearing pedestal 2 that is positioned at described motor one end, and the fore bearing 3 on the described front-end bearing pedestal 2 is set, and is positioned at the rear bearing block 7 of the described motor the other end and is arranged on rear bearing 8 on the described rear bearing block 7.Described motor also comprises and being installed on described fore bearing 3 and the described rear bearing 8, and the rotary drum assembly 1 that can rotate freely, and is installed in the detonation chamber inner core 5 that described motor head covers and the forward flange 4 of detonation chamber urceolus 6 and described motor.Wherein, maintain certain clearance between described rotary drum assembly 1 and the detonation chamber inner core 5, make rotary drum assembly 1 to rotate freely.
The utility model adopts the scheme of side direction air inlet, thereby greatly increases the air inlet area of detonation chamber in the unit time.In embodiment of the present utility model, on rotary drum assembly 1, detonation chamber inner core 5, be respectively arranged with the inlet hole of different structure.As shown in Figure 2, distribution schematic diagram for the hole on the rotary drum assembly in the utility model, in Fig. 2, circumferentially be formed with two groups of trapezoidal holes on the direction of symmetry on the rotary drum assembly 1, in this embodiment, every group of trapezoidal hole includes 7 trapezoidal inlet holes, wherein, the height of first trapezoidal inlet hole and last trapezoidal inlet hole is different with other trapezoidal inlet hole height, in this embodiment, the height of first and last trapezoidal inlet hole is respectively 40mm and 55mm, and the height of other 5 trapezoidal inlet holes is 75mm.Need to prove that it will be understood by those skilled in the art that the quantity that also can increase or reduce the trapezoidal inlet hole that is comprised in every group of trapezoidal hole, these all should be included within the protection domain of the present utility model.
As shown in Figure 3, distribution schematic diagram for the hole on the detonation chamber inner core in the utility model, in Fig. 3, on detonation chamber inner core 5, circumferentially all should be formed with 6 groups of trapezoidal holes in ground, every group of trapezoidal hole comprises 7 trapezoidal inlet holes, as shown in the figure, the height of last trapezoidal inlet hole is 20mm, and the height of other trapezoidal inlet holes is 75mm.
In the utility model, the torus space of detonation chamber urceolus 6 can be divided into 6 sector spaces equably with dividing plate, thereby form 6 detonation tubes, each detonation tube is corresponding to the inlet hole on the detonation chamber inner core 5.When the inlet hole of rotary drum assembly 1 and certain detonation tube inlet hole at once, this detonation tube begins air inlet and fills, when the inlet hole of detonation tube will be rotated tube and block, the detonation tube igniting, trigger detonation wave, this moment is because the high-temperature high-pressure fuel gas generation masterpiece forward that pinking produces is used for the forward flange of motor.
Advantage of the present utility model is:
(1) increased the mixed gas filling area of detonation chamber unit time, that can fill sufficient length within a short period of time can quick-fried mixed gas;
(2) can shorten the cold conditions filling time greatly, in the single pinking cycle, the hot time that produces thrust accounts for the ratio increase of cycle period;
(3) detonation tube is fixed Closed End in face of coming flow path direction, and the back-pressure effect after detonation chamber detonates can not produce structural damage on it;
(4) by the combination of a plurality of fan-shaped detonation chambers, complete machine structure is compact more.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present utility model is by claims and be equal to and limit to these embodiments.
Claims (9)
1. the rotary drum pulse-knocking engine of a side direction air inlet is characterized in that, comprising:
Lay respectively at the fore bearing and the rear bearing of described motor front end and back end;
Be installed on described fore bearing and the rear bearing, and the rotary drum assembly that can rotate freely;
Be installed in detonation chamber inner core and detonation chamber urceolus that described motor head covers; With
The forward flange of described motor;
Wherein, be formed with a plurality of trapezoidal inlet holes respectively on described rotary drum assembly and the described detonation chamber inner core, described detonation chamber urceolus is divided into a plurality of detonation tubes equably by dividing plate.
2. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 1 is characterized in that, has default gap between described rotary drum assembly and the detonation chamber inner core.
3. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 1, it is characterized in that, the described rotary drum assembly circumferentially direction of symmetry is provided with two groups of trapezoidal holes, every group of trapezoidal hole comprises a plurality of trapezoidal inlet holes, and the height of first and last trapezoidal inlet hole is different with the height of other trapezoidal inlet holes in every group of trapezoidal hole.
4. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 3 is characterized in that, the quantity of described trapezoidal inlet hole is 7.
5. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 4 is characterized in that, the height of first and last trapezoidal inlet hole is respectively 40mm and 55mm, and the height of other 5 trapezoidal inlet holes is 75mm.
6. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 5, it is characterized in that, on described detonation chamber inner core circumferentially all should be provided with many group trapezoidal holes, every group of trapezoidal hole comprises a plurality of trapezoidal inlet holes, and the height of last trapezoidal inlet hole is different with the height of other trapezoidal inlet holes in every group of trapezoidal hole.
7. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 6 is characterized in that, described detonation chamber inner core is provided with 6 groups of trapezoidal holes, and every group of trapezoidal hole comprises 7 trapezoidal inlet holes.
8. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 7 is characterized in that, the height of last trapezoidal inlet hole is 20mm, and the height of other trapezoidal inlet holes is 75mm.
9. the rotary drum pulse-knocking engine of side direction air inlet as claimed in claim 7 is characterized in that, comprises 6 detonation tubes on the described detonation chamber urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202054732U CN201696165U (en) | 2010-05-27 | 2010-05-27 | Pulse detonation engine with side-intake rotating drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202054732U CN201696165U (en) | 2010-05-27 | 2010-05-27 | Pulse detonation engine with side-intake rotating drum |
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| Publication Number | Publication Date |
|---|---|
| CN201696165U true CN201696165U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202054732U Expired - Lifetime CN201696165U (en) | 2010-05-27 | 2010-05-27 | Pulse detonation engine with side-intake rotating drum |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168631A (en) * | 2011-04-14 | 2011-08-31 | 北京航空航天大学 | Aluminum film baffle device and pulse solid engine applying same |
| CN104279079A (en) * | 2014-09-26 | 2015-01-14 | 汤广武 | Implosion type impeller |
| CN109653876A (en) * | 2019-01-14 | 2019-04-19 | 南京航空航天大学 | A kind of compact ignition and detonation device of short distance for continuous rotation detonation engine |
| CN112254969A (en) * | 2020-09-11 | 2021-01-22 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
-
2010
- 2010-05-27 CN CN2010202054732U patent/CN201696165U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168631A (en) * | 2011-04-14 | 2011-08-31 | 北京航空航天大学 | Aluminum film baffle device and pulse solid engine applying same |
| CN102168631B (en) * | 2011-04-14 | 2013-07-24 | 北京航空航天大学 | Aluminum film baffle device and pulse solid engine applying same |
| CN104279079A (en) * | 2014-09-26 | 2015-01-14 | 汤广武 | Implosion type impeller |
| CN109653876A (en) * | 2019-01-14 | 2019-04-19 | 南京航空航天大学 | A kind of compact ignition and detonation device of short distance for continuous rotation detonation engine |
| CN109653876B (en) * | 2019-01-14 | 2021-05-11 | 南京航空航天大学 | Short-distance compact ignition initiation device for continuous rotation detonation engine |
| CN112254969A (en) * | 2020-09-11 | 2021-01-22 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
| CN112254969B (en) * | 2020-09-11 | 2022-10-28 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
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| CX01 | Expiry of patent term |