CN110645115A - Sealing sheet of rotor engine - Google Patents
Sealing sheet of rotor engine Download PDFInfo
- Publication number
- CN110645115A CN110645115A CN201911107644.XA CN201911107644A CN110645115A CN 110645115 A CN110645115 A CN 110645115A CN 201911107644 A CN201911107644 A CN 201911107644A CN 110645115 A CN110645115 A CN 110645115A
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- CN
- China
- Prior art keywords
- sealing
- groove
- gasket
- face
- elastic element
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- 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.)
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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
- 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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- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
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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
- F02B55/08—Outer members for co-operation with rotary pistons; Casings
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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
- F02B55/14—Shapes or constructions of combustion chambers
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- 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
Abstract
The utility model provides a rotor engine gasket, is used for rotor engine, includes the gasket body, the gasket body is installed on the rotor top, all is provided with end face seal elastic element at the both ends of gasket body, is equipped with side direction seal elastic element at the side of gasket body, is provided with bottom elastic element in the bottom of gasket body, end face seal elastic element includes the first L type end face seal groove that sets up at this tip of gasket body and the second L type end face seal groove that sets up relatively with first L type end face seal groove, and end face seal elastomer installs between first L type end face seal groove and second L type end face seal groove. The radial sealing sheet of the small-sized rotor engine, which is reasonable in structure and reliable in work, realizes effective sealing through a flexible working mode of the radial sealing sheet, and improves the running performance of the rotor engine.
Description
Technical Field
The invention relates to auxiliary equipment for a microminiature rotary engine, in particular to a sealing sheet design for the rotary engine, and belongs to the field of engines.
Background
The small rotor engine has the characteristics of small volume, light weight, high energy density, suitability for various fuels and the like, so that the small rotor engine is always the focus of research and development. The small rotor engine has wide application prospect in the aspects of unmanned aerial vehicles, auxiliary power systems, micro power and the like. However, the sealing performance of small rotary engines, in which radial sealing plates divide three combustion chambers in order to prevent gas leakage between the three combustion chambers, is still a big gap compared to conventional piston engines, which is the most dominant leakage mode of small rotary engines.
Disclosure of Invention
At present small-size rotary engine gasket structure is comparatively simple, and the gasket can't guarantee the inseparable laminating of gasket and terminal surface and seal groove in the play that does not stop in the combustion chamber, must lead to the fact serious leakage. In view of the above problems, it is necessary to provide a sealing plate for a rotary engine, which improves sealing performance.
The invention discloses a sealing sheet of a rotor engine, aiming at the problems of difficult radial sealing, poor working reliability of the sealing sheet and serious gas leakage in a combustion chamber of a small rotor engine, and aiming at solving the technical problem of providing the radial sealing sheet of the small rotor engine with reasonable structure and reliable working, realizing effective sealing by a flexible working mode of the radial sealing sheet and improving the running performance of the rotor engine.
The purpose of the invention is realized by the following technical scheme:
a rotor engine gasket is used for a rotor engine, the rotor engine comprises a crankshaft, a rotor, a gasket assembly and a cylinder, the rotor is arranged in the cylinder, two end faces of the rotor correspond to two end faces of the cylinder, the gasket assembly is arranged at the top of the rotor, the gasket assembly is the rotor engine gasket of the invention, the gasket assembly comprises a gasket body, the top end of the rotor is provided with a gasket mounting groove, the gasket body is arranged in the gasket mounting groove, two end faces of the gasket body correspond to two end faces of the rotor, the top face of the gasket body corresponds to the inner wall of the cylinder, two ends of the gasket body are provided with end face sealing elastic elements, the side face of the gasket body is provided with a lateral sealing elastic element, the bottom of the gasket body is provided with a bottom elastic element, the end face sealing elastic element comprises a first L-shaped end face sealing groove arranged at the end of the gasket body The end face seal elastomer is mounted between the first L-shaped end face seal groove and the second L-shaped end face seal groove.
Above-mentioned rotor engine gasket, side direction elastic element set up between gasket body and gasket mounting groove, seted up the rectangle recess in the gasket mounting groove, are provided with the bottom seal groove bottom the gasket body, between bottom elastic element bottom seal groove and the rectangle recess, bottom elastic element's top supports on the rotor that gasket mounting groove top corresponds.
The depth of the rectangular groove of the sealing sheet for the rotary engine is smaller than 1/4 of the height of the sealing sheet body, so that the leakage of bottom gas is effectively controlled.
The end face sealing elastic body of the sealing sheet for the rotor engine is a metal sheet type compression spring.
The sealing sheet for the rotor engine is characterized in that an oblique lateral sealing groove is formed in the side face of the sealing sheet body, and a lateral sealing elastic element is arranged in the lateral sealing groove.
The sealing plate for the rotary engine is characterized in that the lateral sealing elastic element is a diaphragm spring.
In the sealing plate for the rotor engine, the bottom elastic element is a metal sheet type spring.
The invention has the advantages that:
1. the sealing sheet of the rotary engine disclosed by the invention can realize the top end, the lateral direction and the bottom sealing of the sealing assembly through the sealing elastic element, thereby reducing the radial leakage of the rotary engine and further improving the working efficiency of the rotary engine.
2. The sealing sheet of the rotor engine disclosed by the invention can ensure that a sealing assembly cannot incline, so that a vibration beating effect is avoided, reliable sealing is ensured, the service lives of the sealing sheet and a cylinder are prolonged, and the running performance of the rotor engine is improved.
Drawings
FIG. 1 is a schematic view of a sealing plate mounting structure of a rotary engine.
FIG. 2 is a schematic view of a rotary engine seal disk assembly.
FIG. 3 is a schematic view of section A-A.
Figure 4 is a sealing slice body fitted with a lateral sealing spring element and a bottom spring element.
Fig. 5 is a schematic structural view of a lateral sealing elastic element.
Fig. 6 is a right side view of fig. 5.
Wherein: 1-crankshaft; 2-a rotor; 3-a sealing assembly; 4, a cylinder; 3-sealing sheet assembly; 5, sealing the sheet body; 6-end face seal element; 7-end face sealing elastomer; 8-lateral sealing elastic element; 9-a bottom elastic element; 10-a first L-shaped face seal groove; 11-side seal groove; 12-bottom seal groove; 13-a second L-shaped face seal groove; 14-sealing piece mounting groove- -.
Detailed Description
As shown in fig. 1 to 6, a rotor engine gasket is used for a rotor engine, the rotor engine comprises a crankshaft 1, a rotor 2, a gasket assembly 3 and a cylinder 4, the rotor is installed in the cylinder, wherein two end faces of the rotor correspond to two end faces of the cylinder, the gasket assemblies are installed on three tops of the rotor, the gasket assemblies comprise a gasket assembly part and two other top parts, namely a part A and a part B, shown in fig. 1, the gasket assembly comprises a gasket body 5, a gasket installation groove 14 is formed in the top end of the rotor, the gasket body 5 is installed in the gasket installation groove, two end faces of the gasket body correspond to two end faces of the rotor, the top face of the gasket body corresponds to the inner wall of the cylinder, end face sealing elastic elements 6 are arranged at two ends of the gasket body, lateral sealing elastic elements 8 are arranged on the side faces of the gasket body, and a bottom elastic element, the end face seal elastic element 6 comprises a first L-shaped end face seal groove 10 arranged at the end part of the sealing sheet body and a second L-shaped end face seal groove 13 arranged opposite to the first L-shaped end face seal groove, the end face seal elastic body 7 is arranged between the first L-shaped end face seal groove 10 and the second L-shaped end face seal groove 13, and the end face seal elastic body 7 is a metal sheet type compression spring.
An oblique lateral sealing groove 11 is formed in the side face of the sealing piece body, a lateral sealing elastic element 8 is arranged in the lateral sealing groove, the lateral elastic element is arranged between the sealing piece body and the sealing piece mounting groove, and the lateral sealing elastic element 8 is a diaphragm spring. Set up rectangle recess 15 in gasket mounting groove 14, be provided with bottom seal groove 12 bottom the gasket body, between bottom elastic element 9 bottom seal groove and the rectangle recess, bottom elastic element's top supports on the rotor that gasket mounting groove top corresponds, and bottom elastic element 9 is the sheetmetal spring.
The depth of the rectangular recess should be less than 1/4 the height of the sealing disc body to effectively control bottom gas leakage.
The working method of the rotor engine sealing sheet comprises the following steps:
the sealing assembly 3 is arranged in the rotor sealing sheet mounting groove 14, and when the rotor engine runs, because the bottom elastic element 9 has certain preset rigidity, the top end of the sealing assembly 3 is attached to the wall surface of the cylinder 4 under the action of the bottom elastic element 9, so that gas in the cylinder 4 is prevented from flowing into other cylinders from the top end of the sealing assembly 3. End face sealing element 6 is installed in 5 both ends of gasket body, because needs end face seal, end face sealing element 6 must with the laminating of cylinder end cover, at the rotatory in-process of rotor 2, small skew can take place for the position of rotor 2, must lead to end face sealing element 6 extrusion or break away from the cylinder end cover, consequently end face sealing elastic elastomer 7 promotes end face sealing element 6 and moves and realize that end face sealing element 6 is laminated with the cylinder end cover once more, realizes sealedly. Because there is frictional force on 3 tops of seal assembly and 4 wall surfaces of cylinder to the width of gasket mounting groove 14 is greater than the irregular contour line of 3 width of seal assembly and cylinder 4, seal assembly 3 must be in gasket mounting groove 14 round trip movement, 5 side processing of gasket body have oblique side seal groove 11 and install side direction sealing elastic element 8 in side seal groove 11, can not take place the slope with guaranteeing seal assembly 3, thereby avoid causing "shake clap" effect. The bottom resilient element 9 is mounted between the bottom seal groove 12 and the rectangular recess 15. Rectangular groove 15 is effective in reducing gas leakage from bottom seal groove 12.
The specific embodiments are given above, but the present invention is not limited to the described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that the design of various modified models, formulas and parameters according to the method and principle of the present invention does not need to spend creative work. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (8)
1. A rotary engine gasket comprising a gasket body (5), characterized in that: the sealing piece body is installed on the top end of a rotor (2), end face sealing elastic elements (6) are arranged at two ends of the sealing piece body, lateral sealing elastic elements (8) are arranged on the side face of the sealing piece body, bottom elastic elements (9) are arranged at the bottom of the sealing piece body, each end face sealing elastic element comprises a first L-shaped end face sealing groove (10) arranged at the end part of the sealing piece body and a second L-shaped end face sealing groove (13) oppositely arranged with the first L-shaped end face sealing groove, and an end face sealing elastic body (7) is installed between the first L-shaped end face sealing groove and the second L-shaped end face sealing groove.
2. The rotary engine sealing plate of claim 1, wherein: the rotor top is provided with gasket mounting groove (14), and gasket body (5) are installed in the gasket mounting groove, and side direction elastic element sets up between gasket body and gasket mounting groove.
3. The rotary engine sealing plate of claim 2, wherein: a rectangular groove (15) is formed in the sealing sheet mounting groove (14), a bottom sealing groove (12) is formed in the bottom of the sealing sheet body, a bottom elastic element (9) is arranged between the bottom sealing groove and the rectangular groove, and the top end of the bottom elastic element is abutted to a rotor corresponding to the top of the sealing sheet mounting groove.
4. The rotary engine sealing plate of claim 3, wherein: the depth of the rectangular recess is less than 1/4 the height of the sealing disc body.
5. The rotary engine sealing plate of claim 1, wherein: the end face sealing elastic body (7) is a metal sheet type compression spring.
6. The rotary engine sealing plate of claim 1, wherein: an oblique lateral sealing groove (11) is arranged on the side surface of the sealing sheet body, and a lateral sealing elastic element (8) is arranged in the lateral sealing groove.
7. The rotary engine sealing plate of claim 1, wherein: the lateral sealing spring element (8) is a diaphragm spring.
8. The rotary engine sealing plate of claim 1, wherein: the bottom elastic element (9) is a sheet metal spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107644.XA CN110645115B (en) | 2019-11-13 | 2019-11-13 | Sealing sheet of rotor engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107644.XA CN110645115B (en) | 2019-11-13 | 2019-11-13 | Sealing sheet of rotor engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110645115A true CN110645115A (en) | 2020-01-03 |
| CN110645115B CN110645115B (en) | 2021-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911107644.XA Active CN110645115B (en) | 2019-11-13 | 2019-11-13 | Sealing sheet of rotor engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110645115B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955904A (en) * | 1975-06-13 | 1976-05-11 | Briggs & Stratton Corporation | Junction seal for rotary engines |
| US4042312A (en) * | 1976-08-16 | 1977-08-16 | Outboard Marine Corporation | Apex seal assembly |
| CN101506494A (en) * | 2006-08-18 | 2009-08-12 | 中川宗司 | Vane-type internal combustion engine |
| CN101865021A (en) * | 2010-03-30 | 2010-10-20 | 黄宏志 | Active clearance compensation type cycloid pump/ motor device |
| CN106368809A (en) * | 2016-10-20 | 2017-02-01 | 北京理工大学 | Tiny rotor with radial sealing piece |
| CN106402394A (en) * | 2016-10-12 | 2017-02-15 | 北京理工大学 | Sealing device used for micro rotor engine |
| CN106401786A (en) * | 2016-09-23 | 2017-02-15 | 北京理工大学 | Sealing device used for micro-miniature rotor engine |
| CN206035537U (en) * | 2016-08-29 | 2017-03-22 | 西安华欧精密机械有限责任公司 | Engine rotor with radial reliable seal structure |
| US20180163541A1 (en) * | 2013-12-17 | 2018-06-14 | Pratt & Whitney Canada Corp. | Rotory engine with rotor land |
-
2019
- 2019-11-13 CN CN201911107644.XA patent/CN110645115B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955904A (en) * | 1975-06-13 | 1976-05-11 | Briggs & Stratton Corporation | Junction seal for rotary engines |
| US4042312A (en) * | 1976-08-16 | 1977-08-16 | Outboard Marine Corporation | Apex seal assembly |
| CN101506494A (en) * | 2006-08-18 | 2009-08-12 | 中川宗司 | Vane-type internal combustion engine |
| CN101865021A (en) * | 2010-03-30 | 2010-10-20 | 黄宏志 | Active clearance compensation type cycloid pump/ motor device |
| US20180163541A1 (en) * | 2013-12-17 | 2018-06-14 | Pratt & Whitney Canada Corp. | Rotory engine with rotor land |
| CN206035537U (en) * | 2016-08-29 | 2017-03-22 | 西安华欧精密机械有限责任公司 | Engine rotor with radial reliable seal structure |
| CN106401786A (en) * | 2016-09-23 | 2017-02-15 | 北京理工大学 | Sealing device used for micro-miniature rotor engine |
| CN106402394A (en) * | 2016-10-12 | 2017-02-15 | 北京理工大学 | Sealing device used for micro rotor engine |
| CN106368809A (en) * | 2016-10-20 | 2017-02-01 | 北京理工大学 | Tiny rotor with radial sealing piece |
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| Publication number | Publication date |
|---|---|
| CN110645115B (en) | 2021-11-02 |
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