CN116291939A - Active sealing mechanism for combustion engine - Google Patents

Active sealing mechanism for combustion engine Download PDF

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Publication number
CN116291939A
CN116291939A CN202310578531.8A CN202310578531A CN116291939A CN 116291939 A CN116291939 A CN 116291939A CN 202310578531 A CN202310578531 A CN 202310578531A CN 116291939 A CN116291939 A CN 116291939A
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CN
China
Prior art keywords
combustion engine
adjusting ring
ring
assembly
extrusion
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Granted
Application number
CN202310578531.8A
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Chinese (zh)
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CN116291939B (en
Inventor
陈永华
陈凯
陈凯洲
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Jiangsu Duokai Power Machinery Co ltd
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Jiangsu Duokai Power Machinery Co ltd
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Priority to CN202310578531.8A priority Critical patent/CN116291939B/en
Publication of CN116291939A publication Critical patent/CN116291939A/en
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Publication of CN116291939B publication Critical patent/CN116291939B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The invention relates to the technical field of internal combustion engine sealing, in particular to an active sealing mechanism for a combustion engine, which comprises an outer housing, wherein an inner adjusting ring is arranged on the inner side of an outer housing assembly surface, which is provided with an inner extruding ring, and the outer extruding ring is provided with an integrally-structured outer extruding ring which protrudes inwards. According to the active sealing mechanism for the combustion engine, the outer housing, the peripheral extrusion ring and the inner adjusting ring are of a combined structural design, so that later replacement and maintenance can be facilitated, and later use cost is reduced; the external diversion pipes positioned on the outer side of the outer housing are used for respectively diversion the two sides of the internal adjusting ring according to the needs, so that the sealing mode is changed according to different working conditions, the control is more various, and the application range is wider; through adopting detachable structural design, can change outside rubber sealing strip according to the assembly of difference, make its assembly laminating nature more excellent.

Description

Active sealing mechanism for combustion engine
Technical Field
The invention relates to the technical field of internal combustion engine sealing, in particular to an active sealing mechanism for a combustion engine.
Background
A combustion engine, also called an internal combustion engine, is a common power machine, which directly converts the thermal energy emitted by the engine into power by burning fuel inside the machine. Because it is inside to change chemical energy into kinetic energy at the cylinder body, therefore the leakproofness requirement to the cylinder body external connection end is higher, and current sealing means is through connecting the leakproofness at the assembly end to promote its shock attenuation and leakproofness, but because it is passive sealed, lead to the leakproofness can't carry out initiative regulation according to different industrial control needs, can't change sealed effect in real time moreover, the security is also very limited.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problems in the prior art, an improved active sealing mechanism for a combustion engine is provided, and the problems that the shock absorption and the sealing performance of the active sealing mechanism are improved by connecting the sealing performance at an assembly end in the current sealing mode, but the sealing performance cannot be actively adjusted according to different industrial control requirements due to the fact that the active sealing mechanism is passive sealing, the sealing effect cannot be changed in real time, and the safety is very limited are solved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an active sealing mechanism for combustion engine, includes the outer housing, the peripheral extrusion ring that has the inside bellied integral structure on the outer housing assembly face, the outer housing assembly face is located the peripheral extrusion ring inboard and is provided with inside adjusting ring, the extrusion spring is installed on the inside inner wall that is located of outer housing, the arc mounting groove has been seted up on the outer housing lateral surface, the inside fixed L type structure outside honeycomb duct that is linked together with the outer housing of being equipped with of arc mounting groove, all have matched with conical surface on peripheral extrusion ring and the inside adjusting ring assembly face.
The outer assembly surface of the outer extrusion ring and the inner adjusting ring are fixedly clamped with an outer rubber sealing strip through the strip-shaped assembly grooves.
The inner wall of the inner adjusting ring is provided with an inner assembling frame which is bent inwards, one end of the extrusion spring is connected with the inner adjusting ring through the inner assembling frame in a sleeved mode, and the other end of the extrusion spring is connected with the inner wall of the outer housing.
The inside of the inner adjusting ring is provided with a circular guide through hole matched with the outer guide pipe.
And a pressure sensor is arranged at the connecting end of the internal adjusting ring and the extrusion spring.
The inside of the outer guide pipe is divided into a first guide cavity communicated with the assembling surface of the inner adjusting ring and a second guide cavity communicated with the inside of the outer housing by an integrally-structured partition plate.
And a side guide hole communicated with the second guide cavity is formed in the outer side face of the outer guide pipe.
The outer rubber sealing strip assembly surface is provided with an inner connecting block with a side limiting strip, and the outer rubber sealing strip is inserted into the strip assembly groove through the inner connecting block to be fixedly clamped with the peripheral extrusion ring and the inner adjusting ring.
The outer side surface of the outer housing is provided with an inclined outer reinforcing rib.
The outside opening position of the external flow guide pipe is provided with an outside connecting pipe which is respectively communicated with the first flow guide chamber and the second flow guide chamber.
The beneficial effects of the invention are as follows:
(1) According to the active sealing mechanism for the combustion engine, the outer housing, the peripheral extrusion ring and the inner adjusting ring are of a combined structural design, so that later replacement and maintenance can be facilitated, and later use cost is reduced;
(2) The external diversion pipes positioned on the outer side of the outer housing are used for respectively diversion the two sides of the internal adjusting ring according to the needs, so that the sealing mode is changed according to different working conditions, the control is more various, and the application range is wider;
(3) Through adopting the detachable structural design, the external rubber sealing strip can be replaced according to different assembly faces, so that the assembly laminating performance is more excellent;
(4) Pressure sensing equipment is arranged in the mechanism, the pressure of the assembly surface can be monitored in real time, the tightness change of the assembly surface can be found in time, and the safety is improved.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic bottom side view of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
In the figure: 1. the device comprises an outer housing, a peripheral extrusion ring, an inner adjusting ring, an extrusion spring, an outer guide pipe, an outer rubber sealing strip, a pressure sensor, a partition plate, a first guide chamber, a second guide chamber, a side guide hole, an inner connecting block, an inclined outer reinforcing rib and an outer connecting pipe.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An active sealing mechanism for a combustion engine shown in fig. 1, 2, 3 and 4 comprises an outer housing 1, wherein an inner convex outer extrusion ring 3 of an integral structure is arranged on an assembly surface of the outer housing 1, an inner adjusting ring 4 is arranged on the inner side of the outer housing 1 positioned on the inner wall of the inner adjusting ring 4, an extrusion spring 5 is arranged on the inner side of the outer housing 1, an arc-shaped assembly groove is formed in the outer side surface of the outer housing 1, an L-shaped outer guide pipe 6 communicated with the inner part of the outer housing 1 is fixedly arranged in the arc-shaped assembly groove, and matched conical surfaces are arranged on the assembly surfaces of the outer extrusion ring 3 and the inner adjusting ring 4.
In order to facilitate replacement of the sealing mechanism, strip-shaped assembly grooves are formed in the peripheral extrusion ring 3 and the inner adjusting ring 4, and an outer rubber sealing strip 7 is fixedly clamped on the outer assembly surfaces of the peripheral extrusion ring 3 and the inner adjusting ring 4 through the strip-shaped assembly grooves.
In order to match with elastic extrusion, the inner wall of the inner adjusting ring 4 is provided with an inner assembling frame which is bent inwards, one end of the extrusion spring 5 is connected with the inner adjusting ring 4 through the inner assembling frame, and the other end of the extrusion spring 5 is connected with the inner wall of the outer housing 1.
In order to match the internal guiding and improve the tightness, a circular guiding through hole matched with the external guiding pipe 6 is formed inside the internal adjusting ring 4.
In order to promote the monitoring effect, pressure sensor 8 is installed to inside adjusting ring 4 and extrusion spring 5 link.
The pressure sensor 8 is a conventional technology, and determines the tightness of the assembly surface by changing the pressure between the inner adjusting ring 4 and the pressing spring 5.
For the diversion according to different positions, the interior of the outer diversion pipe 6 is divided into a first diversion chamber 10 communicated with the assembly surface of the inner adjusting ring 4 and a second diversion chamber 11 communicated with the interior of the outer housing 1 by a separation plate 9 of an integral structure.
In order to match the side diversion, the outer side surface of the outer diversion pipe 6 is provided with a side diversion hole 12 communicated with the second diversion cavity 11.
An inner diversion hole communicated with the side diversion hole 12 is formed in the arc-shaped assembly groove.
For the cooperation loading and unloading is fixed, the inside connecting block 13 that has the side limit strip on the outer rubber sealing strip 7 the fitting surface, and outer rubber sealing strip 7 inserts bar assembly inslot through inside connecting block 13 and peripheral extrusion ring 3, inside adjusting ring 4 joint are fixed.
In order to raise the external supporting force, the outer side of the outer casing 1 is provided with inclined external reinforcing ribs 14.
For the external connection, the external flow guiding tube 6 is provided with an external connecting tube 15 at the external opening position, which is respectively communicated with the first flow guiding chamber 10 and the second flow guiding chamber 11.
According to the active sealing mechanism for the combustion engine, the outer housing 1, the peripheral extrusion ring 3 and the inner adjusting ring 4 are of a combined structural design, so that later replacement and maintenance can be facilitated, and later use cost is reduced; the two sides of the inner adjusting ring 4 are respectively guided by the outer guide pipe 6 positioned at the outer side of the outer housing 1 according to the needs, so that the sealing mode is changed according to different working conditions, the control is more various, and the application range is wider; by adopting a detachable structural design, the external rubber sealing strip 7 can be replaced according to different assembly faces, so that the assembly fit is more excellent; pressure sensing equipment is arranged in the mechanism, the pressure of the assembly surface can be monitored in real time, the tightness change of the assembly surface can be found in time, and the safety is improved.
Working principle:
when the outer flow guide pipe 6 guides flow to the lower end of the inner adjusting ring 4 through the first flow guide cavity 10, the inner adjusting ring 4 is controlled to move towards the inside of the outer housing 1, the outer rubber sealing strip 7 is adopted for extrusion sealing at the moment, meanwhile, the extrusion spring 5 can be used for buffering, the pressure sensor 8 at the connecting end of the extrusion spring 5 is used for monitoring the pressure at the lower end when the safety is improved, meanwhile, a groove is formed when the inner adjusting ring 4 is extruded upwards, and the inflow groove can be matched and sealed through liquid;
when the outer flow guide pipe 6 guides flow to the inner part of the outer casing 1 through the second flow guide cavity 11, the inner part of the outer casing 1 is filled with fluid to improve the inner pressure, so that the extrusion force of the upper surface of the inner adjusting ring 4 is improved, and the sealing performance is improved, and meanwhile, the heat insulation performance is also improved.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (10)

1. An active sealing mechanism for a combustion engine, comprising an outer casing (1), characterized in that: the novel outer cover is characterized in that the outer cover (1) assembly surface is provided with an inward protruding peripheral extrusion ring (3) of an integrated structure, the inner side of the outer cover (1) assembly surface, which is located on the outer extrusion ring (3), is provided with an inner adjusting ring (4), an extrusion spring (5) is arranged on the inner wall of the inner adjusting ring (4) inside the outer cover (1), an arc assembly groove is formed in the outer side surface of the outer cover (1), an L-shaped structure outer guide pipe (6) communicated with the inner part of the outer cover (1) is fixedly arranged inside the arc assembly groove, and the outer extrusion ring (3) and the inner adjusting ring (4) assembly surface are provided with matched conical surfaces.
2. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: the outer extrusion ring (3) and the inner adjusting ring (4) are internally provided with strip-shaped assembly grooves, and the outer assembly surfaces of the outer extrusion ring (3) and the inner adjusting ring (4) are fixedly clamped with outer rubber sealing strips (7) through the strip-shaped assembly grooves.
3. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: the inner wall of the inner adjusting ring (4) is provided with an inner assembling frame which is bent inwards, one end of the extrusion spring (5) is connected with the inner adjusting ring (4) through the inner assembling frame in a sleeved mode, and the other end of the extrusion spring (5) is connected with the inner wall of the outer housing (1).
4. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: the inside of the inner adjusting ring (4) is provided with a circular guide through hole matched with the outer guide pipe (6).
5. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: and a pressure sensor (8) is arranged at the connecting end of the inner adjusting ring (4) and the extrusion spring (5).
6. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: the inside of the outer guide pipe (6) is divided into a first guide cavity (10) communicated with the assembling surface of the inner adjusting ring (4) and a second guide cavity (11) communicated with the inside of the outer housing (1) through an integrally-structured separation plate (9).
7. The active seal mechanism for a combustion engine of claim 6, wherein: the outer side surface of the outer flow guide pipe (6) is provided with a side flow guide hole (12) communicated with the second flow guide cavity (11).
8. An active seal mechanism for a combustion engine as set forth in claim 2, wherein: the assembly surface of the external rubber sealing strip (7) is provided with an inner connecting block (13) with a side limiting strip, and the external rubber sealing strip (7) is inserted into the strip-shaped assembly groove through the inner connecting block (13) to be clamped and fixed with the peripheral extrusion ring (3) and the internal adjusting ring (4).
9. An active seal mechanism for a combustion engine as set forth in claim 1, wherein: the outer side surface of the outer housing (1) is provided with an inclined outer reinforcing rib (14).
10. The active seal mechanism for a combustion engine of claim 6, wherein: the outside opening position of the outer guide pipe (6) is provided with an outside connecting pipe (15) which is respectively communicated with the first guide cavity (10) and the second guide cavity (11).
CN202310578531.8A 2023-05-22 2023-05-22 Active sealing mechanism for combustion engine Active CN116291939B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310578531.8A CN116291939B (en) 2023-05-22 2023-05-22 Active sealing mechanism for combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310578531.8A CN116291939B (en) 2023-05-22 2023-05-22 Active sealing mechanism for combustion engine

Publications (2)

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CN116291939A true CN116291939A (en) 2023-06-23
CN116291939B CN116291939B (en) 2023-12-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040256809A1 (en) * 2003-04-09 2004-12-23 Dimitrios Dardalis Apparatus and method for rotating sleeve engine hydrodynamic seal
DE102006057319A1 (en) * 2006-12-05 2008-06-12 Siemens Ag Monitoring method for cylinder head gasket at internal combustion engine, involves monitoring condition of cooling fluid by sensor upon inflow of engine oil and combustion residues, and controlling cooling fluid
US20150361838A1 (en) * 2012-04-04 2015-12-17 Dimitrios Dardalis Method and apparatus for rotating sleeve engine hydrodynamic seal
CN205277626U (en) * 2015-12-14 2016-06-01 浙江吉利罗佑发动机有限公司 Piston gas tight sealing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040256809A1 (en) * 2003-04-09 2004-12-23 Dimitrios Dardalis Apparatus and method for rotating sleeve engine hydrodynamic seal
DE102006057319A1 (en) * 2006-12-05 2008-06-12 Siemens Ag Monitoring method for cylinder head gasket at internal combustion engine, involves monitoring condition of cooling fluid by sensor upon inflow of engine oil and combustion residues, and controlling cooling fluid
US20150361838A1 (en) * 2012-04-04 2015-12-17 Dimitrios Dardalis Method and apparatus for rotating sleeve engine hydrodynamic seal
CN205277626U (en) * 2015-12-14 2016-06-01 浙江吉利罗佑发动机有限公司 Piston gas tight sealing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李卫民;赵文川;刘志强;: "基于有限元分析的汽油发动机密封性能多物理场耦合研究", 润滑与密封, no. 04, pages 1 - 10 *

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