CN110344964A - Rotary engine apex combustion seal and rotary engine - Google Patents
Rotary engine apex combustion seal and rotary engine Download PDFInfo
- Publication number
- CN110344964A CN110344964A CN201910598317.2A CN201910598317A CN110344964A CN 110344964 A CN110344964 A CN 110344964A CN 201910598317 A CN201910598317 A CN 201910598317A CN 110344964 A CN110344964 A CN 110344964A
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- China
- Prior art keywords
- rotary engine
- seal
- apex
- inserted sheet
- sealing
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Classifications
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- 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
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/02—Pistons
-
- 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
- F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
- F02B55/08—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/007—Arrangements of sealings in combustion engines involving rotary applications
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
This disclosure relates to rotary engine technical field more particularly to a kind of rotary engine apex combustion seal and rotary engine.The rotary engine apex combustion seal includes apex seal and multiple sealing inserted sheets, wherein: apex seal can be mounted on the rotor of rotary engine, one end of sealing inserted sheet is installed on apex seal, and the other end can be contacted with the inner wall of cylinder in rotary engine.The rotary engine apex combustion seal can be improved the sealing performance of rotary engine, and then the service life of Extending Rotor engine.
Description
Technical field
This disclosure relates to rotary engine technical field more particularly to a kind of rotary engine apex combustion seal and rotor
Engine.
Background technique
Rotary engine has compact-sized, specific power greatly and output compared to traditional reciprocating type four-stroke engine
The advantages that stablizing, is widely used in the facilities such as middle-size and small-size general-purpose aircraft, unmanned plane and special vehicle.In rotary engine
In, the sealing performance between each operating room is most important for the reliability and efficiency of rotary engine.
Above- mentioned information disclosed in the background technology part are only used for reinforcing the understanding to the background of the disclosure, therefore it can
To include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The disclosure is designed to provide a kind of rotary engine apex combustion seal and rotary engine, can be improved and turns
The sealing performance of sub- engine, and the service life of Extending Rotor engine.
For achieving the above object, the disclosure adopts the following technical scheme that
According to one aspect of the disclosure, a kind of rotary engine apex combustion seal is provided, comprising:
Apex seal can be mounted on the rotor of rotary engine；
One end of multiple sealing inserted sheets, each sealing inserted sheet is installed on the apex seal, and the other end can be with institute
State the inner wall contact of cylinder in rotary engine.
In a kind of exemplary embodiment of the disclosure, the apex seal is equipped with multiple grooves；The sealing inserted sheet
It is installed in the groove.
In a kind of exemplary embodiment of the disclosure, the sealing inserted sheet and the apex seal are strip,
And the length direction of the sealing inserted sheet is identical as the length direction of the apex seal.
In a kind of exemplary embodiment of the disclosure, the fit system of the sealing inserted sheet and the groove is matched for gap
It closes.
In a kind of exemplary embodiment of the disclosure, the sealing inserted sheet has arc surface, and the arc surface can be with
The inner wall contact.
In a kind of exemplary embodiment of the disclosure, the apex seal and the sealing inserted sheet are all made of metal material
Material is made.
In a kind of exemplary embodiment of the disclosure, first is equipped between sealing inserted sheet and the slot bottom of the groove
Elastic component.
According to another aspect of the disclosure, a kind of rotary engine is provided, comprising:
Cylinder；
Rotor is set in the cylinder, and the rotor is provided with mounting groove；
Rotary engine apex combustion seal described in above-mentioned any one, in which: the apex seal is installed on institute
Mounting groove is stated, each sealing inserted sheet is contacted with the inner wall of the cylinder.
In a kind of exemplary embodiment of the disclosure, it is equipped between the apex seal and the slot bottom of the mounting groove
Second elastic component.
In a kind of exemplary embodiment of the disclosure, between the fit system of the apex seal and the mounting groove is
Gap cooperation.
The rotary engine apex combustion seal of disclosure embodiment can make this turn by the way that multiple sealing inserted sheets are arranged
The contact area of sub- engine apex combustion seal and inner wall becomes larger, and the sealing performance of rotary engine can be improved, to avoid
Rotary engine because sealing performance is bad leak air, even regurgitate the phenomenon that, and extend the use of rotary engine
Service life.
The rotary engine of disclosure embodiment uses above-mentioned engine apex combustion seal, and above-mentioned engine is radially close
Seal apparatus can be improved the sealing performance of rotary engine, and then the service life of Extending Rotor engine.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of disclosure embodiment rotary engine apex combustion seal.
Fig. 2 is the structural schematic diagram of disclosure embodiment rotary engine.
Fig. 3 is the enlarged drawing in the portion A in Fig. 2.
In Fig. 1: 1, rotary engine；10, rotor；11, cylinder；110, inner wall；2, apex seal；20, groove；3, close
Seal inserted sheet；30, arc surface；4, the first elastic component.
In Fig. 2~Fig. 3: 1a, rotary engine；10a, rotor；100a, mounting groove；11a, cylinder；110a, inner wall；2a,
Apex seal；20a, groove；3a, sealing inserted sheet；30a, arc surface；4a, the first elastic component；5a, the second elastic component.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms
It applies, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the disclosure will more comprehensively and
Completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, structure or characteristic
It can be incorporated in any suitable manner in one or more embodiments.In the following description, many details are provided
Embodiment of the disclosure is fully understood to provide.
Described feature, structure or characteristic can be incorporated in any suitable manner in one or more embodiments.
In the following description, many details are provided to provide and fully understand to embodiment of the disclosure.However, this field
Technical staff will realize can with technical solution of the disclosure without one or more in the specific detail, or
Person can be using other methods, constituent element, material etc..In other cases, be not shown in detail or describe known features, material or
The major technique intention that person operates to avoid the fuzzy disclosure.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the overturning of the device of icon, the component in "upper" will be at
For in the component of "lower".Term of other relativities, such as "high" " low " "top" "bottom" " left side " " right side " etc. also make have similar contain
Justice.
When certain structure is at other structures "upper", it is possible to refer to that certain structural integrity is formed in other structures, or refer to certain
Structure is " direct " to be arranged in other structures, or refers to that certain structure is arranged in other structures by the way that another structure is " indirect ".Term
"one", " one ", " described " to indicate there are one or more elements/component part/etc.；Term " comprising " and " having " is used
To indicate the open meaning being included and refer to that the element/component part/in addition to listing also may be present separately other than waiting
Outer element/component part/etc..Term " first " and " second " etc. are only used as label, are not the quantity limits to its object
System.
Under normal conditions, rotary engine 1 may include cylinder 11 and the rotor 10 in cylinder 11, wherein in rotor
In 10 rotation process, the volume of each operating room of cylinder 11 constantly changes, to complete air inlet, compression, burning and exhaust
Four processes, in this Four processes, the output shaft of rotary engine 1 keeps rotation.In order to avoid 11 operating room Zhong Ge of cylinder
Between there is gas blowby, apex seal 2 can be set between rotor 10 and the inner wall 110 of cylinder 11.
In the related art, an apex seal 2, and apex seal 2 are respectively equipped on each apex angle of rotor 10
It can be contacted with the inner wall 110 of cylinder 11 in rotary engine 1, to realize the sealing between 1 operating room Zhong Ge of rotary engine.
Under the gas pressure and centripetal force in rotary engine 1 the effects of, single apex seal 2 is easy to appear play, clap vibration and
Friction phenomenon causes the sealing performance between each operating room of rotary engine 1 to be deteriorated, and then rotary engine 1 is caused to occur
Phenomenon is even regurgitated in gas leakage, and finally shortens the service life of rotary engine 1.
To solve the above problems, a kind of rotary engine apex combustion seal is provided in disclosure embodiment, such as Fig. 1 institute
Show, which may include apex seal 2 and sealing inserted sheet 3, in which: apex seal 2 can
It is mounted on the rotor 10 of rotary engine 1；Seal inserted sheet 3 quantity be it is multiple, it is multiple sealing inserted sheets 3 one end be installed on diameter
To diaphragm seal 2, the other end can be contacted with the inner wall 110 of cylinder 11 in rotary engine 1.
The rotary engine apex combustion seal of disclosure embodiment, during the installation process, first by apex seal 2
It is arranged on the rotor 10 of rotary engine 1, then by one end installation of multiple sealing inserted sheets 3 and apex seal 2, at this point, respectively
The other end of sealing inserted sheet 3 can be contacted with the inner wall 110 of cylinder 11 in rotary engine 1, single compared in the related technology
The scheme that apex seal 2 is directly contacted with the inner wall 110 of cylinder 11, the scheme of the application increase rotary engine radial direction
The contact area of sealing device and inner wall 110 so as to improve the seal form of rotary engine 1, and then avoids rotor hair
Motivation 1 because sealing performance is bad leak air, even regurgitate the phenomenon that, and extend the service life of rotary engine 1.
Each component of the rotary engine apex combustion seal provided with reference to the accompanying drawing disclosure embodiment carries out
It is described in detail:
As shown in Figure 1, apex seal 2 can be mounted on the rotor 10 of rotary engine 1, apex seal 2 can be made
For installation pedestal, inserted sheet 3 is sealed for installing.
For example, since each apex angle of rotor 10 is along the axially extending of rotor 10, it can be by apex seal 2
It is designed as the axially extending strip structure along rotor 10, it may be assumed that apex seal 2 can be strip, and along rotor 10
Axially extending, which can increase the contact area of the apex angle of apex seal 2 and rotor 10, Jin Erbao
Demonstrate,prove the mounting stability of apex seal 2 and rotor 10.
The groove 20 for being used to install sealing inserted sheet 3, the groove 20 can be equipped on the one end of apex seal 2 far from rotor 10
It can be rectangular channel, certainly, the groove 20 or wedge groove etc. can be realized the steady of sealing inserted sheet 3 and apex seal 2
It is solidly connected, will not enumerate herein.
The quantity of groove 20 can be multiple, and multiple grooves 20 can be uniformly distributed, and can be set in each groove 20 at this time
A sealing inserted sheet 3 is set, then each sealing inserted sheet 3 will not influence each other, and then it is radial to improve rotary engine in the application
The reliability of sealing device.Certainly, the quantity of groove 20 can be one, be not particularly limited herein.
Apex seal 2 can be made using metal material or ceramic matric composite etc., for example, radial close
The material of mounting 2 can be steel alloy or silicon nitride etc..Apex seal 2 has preferable heat-resisting quantity as a result, to adapt to turn
Hot environment in the cylinder 11 of sub- engine 1；Meanwhile apex seal 2 also has preferable wearability, it is radial close to reduce
Abrasion loss when mounting 2 moves in groove 20, and then extend the service life of apex seal 2.
As shown in Figure 1, one end of sealing inserted sheet 3 is installed in the groove 20 of apex seal 2, the other end can be with rotor
The inner wall 110 of cylinder 11 contacts in engine 1, for realizing the sealing between each operating room of rotary engine 1.
For example, the shape for sealing inserted sheet 3 can be strip, and seal length direction and the radial seal of inserted sheet 3
The length direction of piece 2 is identical, that is to say, that sealing inserted sheet 3 and apex seal 2 seal along the axially extending of rotor 10
The length of inserted sheet 3 is consistent with the length of apex seal 2, on the one hand, sealing inserted sheet 3 can be enabled preferably to be fixed on diameter
To on diaphragm seal 2, on the other hand, it also can guarantee the contact length of sealing inserted sheet 3 and inner wall 110, avoid the occurrence of and led because of shaking
The case where densification envelope inserted sheet 3 and inner wall 110 are detached from, and then improve the sealing performance between each operating room of rotary engine 1.
The sealing one end (one end contacted with inner wall 110) of inserted sheet 3 far from groove 20 can have arc surface 30, the arc surface
30 curvature is different from the curvature of inner wall 110, so as to be capable of forming line contact between sealing inserted sheet 3 and inner wall 110.Moreover, close
Seal inserted sheet 3 quantity be it is multiple, the arc surfaces 30 of multiple sealing inserted sheets 3 contact to form multiple lines and connect with the inner wall 110 of cylinder 11
Touching sealing, and multiple line contact sealings approximatively form face contact sealing, to keep the rotary engine in the application radially close
The contact area of seal apparatus and inner wall 110 becomes larger, and then improves the seal form of rotary engine 1.
It can be readily appreciated that sealing inserted sheet 3 will not only bear the high temperature in the cylinder 11 of rotary engine 1, and seal
There are sliding frictions between inserted sheet 3 and inner wall 110, so, metal material or ceramic matric composite etc. can be used in sealing inserted sheet 3
It is made, and need to guarantee that sealing inserted sheet 3 has preferable heat-resisting quantity and wearability.For example, the material of inserted sheet 3 is sealed
It can be the materials such as steel alloy or silicon nitride, enumerate again herein.
It should be noted that the fit system of sealing inserted sheet 3 and groove 20 must be clearance fit, that is to say, that sealing is inserted
The width of piece 3 should be slightly less than the width of groove 20, to facilitate sealing inserted sheet 3 to slide up and down in groove 20.
As shown in Figure 1, can also be equipped with the first elastic component 4, the first elastic component 4 between sealing inserted sheet 3 and the slot bottom of groove 20
For applying the spring force towards the inner wall 110 of cylinder 11 to sealing inserted sheet 3.For example, which can be bullet
Reed, the spring leaf can effectively adjust the amount of moving radially of sealing inserted sheet 3, and then do sealing inserted sheet 3 under spring force
Adaptive motion, that is to say, that when sealing inserted sheet 3 moves to the recessed portion of inner wall 110 with rotor 10, spring leaf pushes sealing
Inserted sheet 3 moves outwardly, to guarantee the close contact between sealing inserted sheet 3 and inner wall 110, and when sealing inserted sheet 3 is transported with rotor 10
When moving the protrusion of inner wall 110, which squeezes sealing inserted sheet 3 and moves inwardly, can squeeze when sealing inserted sheet 3 and moving inwardly
Pressing spring piece, at the same time, spring leaf apply the spring force towards the inner wall 110 of cylinder 11 to sealing inserted sheet 3, to guarantee to seal
Inserted sheet 3 and inner wall 110 are in close contact.
In addition, the gap fiting mode of previously described sealing inserted sheet 3 and groove 20 can also make to seal the adaptive of inserted sheet 3
Movement is gone on smoothly, but it is to be understood that, in order to guarantee to seal the mounting stability between inserted sheet 3 and groove 20, sealing is inserted
Gap between piece 3 and groove 20 is not easy excessive, it is preferable that the minimum clearance between sealing inserted sheet 3 and groove 20 is almost nil.
A kind of rotary engine 1a is also provided in disclosure embodiment, as shown in Figures 2 and 3, rotary engine 1a
Rotary engine apex combustion seal including cylinder 11a, rotor 10a and above-mentioned any one, in which: rotor 10a is set to gas
In cylinder 11a, and rotor 10a can be three-apexed rotor, and mounting groove 100a, the rotor of above-mentioned any one are provided on rotor 10a
Apex seal 2a in engine apex combustion seal is installed on mounting groove 100a, and respectively seals inserted sheet 3a's and cylinder 11a
Inner wall 110a contact.
The rotary engine of disclosure embodiment uses above-mentioned engine apex combustion seal, by the way that multiple sealings are arranged
Inserted sheet 3a can make the rotary engine apex combustion seal and the contact area of inner wall 110a become larger, and rotary engine can be improved
Sealing performance, so as to avoid rotary engine 1a because sealing performance is bad leak air, even regurgitate the phenomenon that, and prolong
The service life of rotary engine 1a is grown.
The rotary engine apex combustion seal in rotary engine 1a that disclosure embodiment provides is hereinbefore
Detailed description, details are not described herein again.The rotary engine 1a provided with reference to the accompanying drawing disclosure embodiment is supplemented
It introduces:
As shown in Fig. 2, being provided with mounting groove 100a on the rotor 10a of rotary engine 1a.
Specifically, mounting groove 100a is arranged on three apex angles of rotor 10a, for installing apex seal 2a.
Because the shape of apex seal 2a can be strip, and along the axially extending of rotor 10a, then apex seal
2a can be rectangle close to one end of rotor 10a connection, and correspondingly, mounting groove 100a can be rectangular channel, so that radial close
Mounting 2a and rotor 10a can be bonded.
As shown in figure 3, the fit system of apex seal 20a and mounting groove 100a must be clearance fit, that is to say, that diameter
The width of mounting groove 100a should be slightly less than, to the width of diaphragm seal 20a to facilitate apex seal 20a in mounting groove 100a
Installation.
As shown in figure 3, can be equipped with the second elastic component 5a between apex seal 20a and the slot bottom of mounting groove 100a, this
Two elastic component 5a are used to apply the spring force towards the inner wall 110a of cylinder 11a to 20a.
For example, second elastic component 5a can be spring leaf, which can be effectively controlled apex seal 20a's
The amount of moving radially is also beneficial to the adaptive motion of apex seal 20a under spring force, is not described in detail herein.
In addition, the gap fiting mode of previously described apex seal 20a and mounting groove 100a can also make radial seal
The adaptive motion of piece 20a is gone on smoothly, but it is to be understood that, in order to guarantee apex seal 20a and mounting groove 100a it
Between mounting stability, the gap between apex seal 20a and mounting groove 100a is not easy excessive, it is preferable that apex seal
Minimum clearance between 20a and mounting groove 100a is almost nil.
It can be readily appreciated that the second elastic component 5a and the first elastic component 4a collective effect, so that rotary engine is radially close
The inner wall 110a of seal apparatus and cylinder 11a are in close contact state always, and then improve the leakproofness of rotary engine 1a
Energy.
It should be understood that the disclosure is not limited in its application to the detailed construction and arrangement of the component of this specification proposition
Mode.The disclosure can have other embodiments, and can realize and execute in many ways.Aforesaid deformation form and
Modification is fallen within the scope of this disclosure.It should be appreciated that this disclosure and the disclosure of restriction extend in text
And/or it is mentioned in attached drawing or all alternative combinations of two or more apparent independent features.It is all these different
Combination constitutes multiple alternative aspects of the disclosure.Embodiment described in this specification illustrates to become known for realizing the disclosure
Best mode, and those skilled in the art will be enable using the disclosure.
Claims (10)
1. a kind of rotary engine apex combustion seal characterized by comprising
Apex seal can be mounted on the rotor of rotary engine；
One end of multiple sealing inserted sheets, each sealing inserted sheet is installed on the apex seal, and the other end can be with described turn
The inner wall contact of cylinder in sub- engine.
2. rotary engine apex combustion seal according to claim 1, which is characterized in that
The apex seal is equipped with multiple grooves；The sealing inserted sheet is installed in the groove.
3. rotary engine apex combustion seal according to claim 2, which is characterized in that
The sealing inserted sheet and the apex seal are strip, and the length direction of the sealing inserted sheet and the radial direction
The length direction of diaphragm seal is identical.
4. rotary engine apex combustion seal according to claim 2, which is characterized in that
The fit system of the sealing inserted sheet and the groove is clearance fit.
5. rotary engine apex combustion seal according to claim 1, which is characterized in that
The sealing inserted sheet has arc surface, and the arc surface can be contacted with the inner wall.
6. rotary engine apex combustion seal according to claim 1, which is characterized in that
The apex seal and the sealing inserted sheet are all made of metal material and are made.
7. rotary engine apex combustion seal according to claim 2, which is characterized in that
The first elastic component is equipped between sealing inserted sheet and the slot bottom of the groove.
8. a kind of rotary engine characterized by comprising
Cylinder；
Rotor is set in the cylinder, and the rotor is provided with mounting groove；
Rotary engine apex combustion seal described in any one of claim 1~7, in which: the apex seal peace
Loaded on the mounting groove, each sealing inserted sheet is contacted with the inner wall of the cylinder.
9. rotary engine according to claim 8, which is characterized in that the slot of the apex seal and the mounting groove
The second elastic component is equipped between bottom.
10. rotary engine according to claim 8, which is characterized in that the apex seal and the mounting groove
Fit system is clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598317.2A CN110344964A (en) | 2019-07-04 | 2019-07-04 | Rotary engine apex combustion seal and rotary engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598317.2A CN110344964A (en) | 2019-07-04 | 2019-07-04 | Rotary engine apex combustion seal and rotary engine |
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| Publication Number | Publication Date |
|---|---|
| CN110344964A true CN110344964A (en) | 2019-10-18 |
Family
ID=68178243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910598317.2A Pending CN110344964A (en) | 2019-07-04 | 2019-07-04 | Rotary engine apex combustion seal and rotary engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN110344964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594311A (en) * | 2020-04-22 | 2020-08-28 | 北京航空航天大学 | High-sealing quasi-elliptical rotor engine |
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|---|---|---|---|---|
| CN111594311A (en) * | 2020-04-22 | 2020-08-28 | 北京航空航天大学 | High-sealing quasi-elliptical rotor engine |
| CN111594311B (en) * | 2020-04-22 | 2021-05-11 | 北京航空航天大学 | High-sealing quasi-elliptical rotor engine |
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Application publication date: 20191018 |
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| RJ01 | Rejection of invention patent application after publication |