CN113266453A - Heat insulation device for exhaust passage of internal combustion engine - Google Patents
Heat insulation device for exhaust passage of internal combustion engine Download PDFInfo
- Publication number
- CN113266453A CN113266453A CN202110714132.0A CN202110714132A CN113266453A CN 113266453 A CN113266453 A CN 113266453A CN 202110714132 A CN202110714132 A CN 202110714132A CN 113266453 A CN113266453 A CN 113266453A
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- CN
- China
- Prior art keywords
- exhaust passage
- combustion engine
- internal combustion
- heat insulation
- heat
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
Abstract
The invention discloses a heat insulation device for an exhaust passage of an internal combustion engine, which comprises the internal combustion engine, the exhaust passage and a heat insulation sleeve, wherein the heat insulation sleeve is arranged in the exhaust passage, a boss of the heat insulation sleeve is connected with the exhaust passage, and the exhaust passage positions the heat insulation sleeve through a step. Has the advantages that: the invention has simple operation and convenient use, separates the heat of high-temperature waste gas through the heat insulation sleeve, reduces the temperature of the internal combustion engine, improves the working environment of engine oil and prolongs the service life of the whole engine.
Description
Technical Field
The invention relates to the field of heat conduction, in particular to an exhaust passage heat insulation device of an internal combustion engine.
Background
Along with the popularization of the national policy of energy conservation and emission reduction, in order to improve the heat efficiency of the internal combustion engine, the strengthening of the internal combustion engine is more and more emphasized by a plurality of manufacturers, but the heat load of the strengthened internal combustion engine is obviously increased, and the service life of the strengthened internal combustion engine is greatly reduced. In order to ensure the normal work of the internal combustion engine, the cooling strength of the internal combustion engine must be improved, but the improvement of the cooling strength can cause the loss of heat energy, and simultaneously the enhanced cooling can consume larger mechanical energy, so that the enhanced internal combustion engine has the influences of unobvious energy-saving effect, high heat load, greatly reduced service life, even lubricating oil gel of the internal combustion engine, abnormal work of the internal combustion engine and the like.
Disclosure of Invention
The invention aims to provide an exhaust passage heat insulation device of an internal combustion engine, which can realize that waste gas exhausted by the internal combustion engine is transmitted to the internal combustion engine as little as possible when passing through an exhaust passage, reduce the heat load of the internal combustion engine to the maximum extent, reduce the cooling strength of the internal combustion engine, prolong the service life of the internal combustion engine and achieve the aims of energy conservation and environmental protection.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the heat insulating device for the exhaust passage of the internal combustion engine comprises the internal combustion engine, the exhaust passage and a heat insulating sleeve.
Further, the heat insulating sleeve is assembled inside the exhaust passage.
Further, this application the radiation shield cover excircle both ends be equipped with the boss, ensure that the radiation shield cover excircle of intermediate position does not contact with the exhaust passage.
Further, the step is arranged inside the exhaust passage and used for achieving axial positioning during assembling of the heat insulation sleeve.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple operation and convenient use, can obstruct the heat of high-temperature waste gas through the heat insulation sleeve, reduces the temperature of the internal combustion engine, improves the working environment of engine oil and prolongs the service life of the whole engine.
Drawings
FIG. 1 is a schematic structural diagram of an exhaust passage heat-insulating device of an internal combustion engine according to the present invention.
The figures and descriptions are as follows:
1. a heat insulating sleeve; 2. an exhaust passage; 3. an internal combustion engine.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and embodiments.
Example 1: an exhaust passage heat insulation device of an internal combustion engine comprises a heat insulation sleeve 1, an exhaust passage 2 and an internal combustion engine 3. The assembly of heat insulating sleeve 1 is inside exhaust passage 2, and 1 excircle of heat insulating sleeve is equipped with the boss, and exhaust passage 2 is inside to be equipped with the step, and heat insulating sleeve 1 passes through the boss to be connected with exhaust passage 2, and exhaust passage 2 passes through the step and fixes a position heat insulating sleeve 1, ensures that the big section excircle of 1 mid portion of heat insulating sleeve and exhaust passage contactless.
In view of the above embodiment, when the internal combustion engine 3 is in normal operation, the exhausted high-temperature exhaust gas is exhausted from the internal combustion engine 3 through the heat insulating sleeve 1, and since the heat insulating sleeve 1 is connected with the exhaust passage 2 through the boss, most of the heat of the exhaust gas cannot be transferred to the exhaust passage 2 through the heat insulating sleeve 1, and along with the flow of the exhaust gas, the heat of the heat insulating sleeve 1 is also carried out of the internal combustion engine 3 by the exhaust gas. The heat insulation device of the exhaust passage of the internal combustion engine reduces the temperature of the internal combustion engine 3, improves the working environment of engine oil and prolongs the service life of the internal combustion engine 3.
The invention is not described in detail in the prior art, and the invention is embodied in many ways and is described in preferred embodiments. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, but that various changes and modifications in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides an internal-combustion engine exhaust passage heat-proof device, includes insulating sleeve (1), exhaust passage (2), internal-combustion engine (3), its characterized in that: the heat insulation sleeve (1) is arranged inside the exhaust passage (2), a boss is arranged on the outer circle of the heat insulation sleeve (1), and a step is arranged inside the exhaust passage (2).
2. An exhaust passage heat insulating device for an internal combustion engine as defined in claim 1, wherein: the heat insulation sleeve (1) is connected with the exhaust passage (2) through the boss, and the exhaust passage (2) positions the heat insulation sleeve (1) through the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714132.0A CN113266453A (en) | 2021-06-26 | 2021-06-26 | Heat insulation device for exhaust passage of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714132.0A CN113266453A (en) | 2021-06-26 | 2021-06-26 | Heat insulation device for exhaust passage of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113266453A true CN113266453A (en) | 2021-08-17 |
Family
ID=77236085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110714132.0A Pending CN113266453A (en) | 2021-06-26 | 2021-06-26 | Heat insulation device for exhaust passage of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113266453A (en) |
-
2021
- 2021-06-26 CN CN202110714132.0A patent/CN113266453A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |