CN112160853A - In-cylinder direct injection engine air inlet pipe and preparation method thereof - Google Patents
In-cylinder direct injection engine air inlet pipe and preparation method thereof Download PDFInfo
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- CN112160853A CN112160853A CN202010776593.6A CN202010776593A CN112160853A CN 112160853 A CN112160853 A CN 112160853A CN 202010776593 A CN202010776593 A CN 202010776593A CN 112160853 A CN112160853 A CN 112160853A
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- ring sleeve
- semi
- air inlet
- ring
- inlet pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10268—Heating, cooling or thermal insulating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10334—Foams; Fabrics; Porous media; Laminates; Ceramics; Coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10354—Joining multiple sections together
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10367—Machining, e.g. milling, grinding, punching, sanding; Bending; Surface treatments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses an intake pipe of a direct injection engine in a cylinder and a preparation method thereof, and relates to the field of intake systems. The invention solves the problem of improving the heat insulation performance of the air inlet pipe of the direct injection engine by arranging the air inlet pipe body, the heat insulation cover and the elastic cushion layer.
Description
Technical Field
The invention relates to the technical field of air inlet systems, in particular to an air inlet pipe of a direct injection engine in a cylinder and a preparation method thereof.
Background
The power of a turbocharged engine of an automobile is much higher than that of a naturally aspirated engine, but the existence of supercharging also brings problems, the intake air temperature can be increased through supercharging, high heat generation quantity can be generated after air is compressed in a high proportion, the air temperature is increased due to the increase of the density of the air in the compression process, so that the charging efficiency of the engine is influenced, in order to obtain higher volumetric efficiency, the intake air temperature needs to be reduced by an intercooler, the supercharged high-temperature air temperature is reduced, so that the heat load of the engine is reduced, the intake air temperature can be reduced by 50-60 ℃ after intercooling, the compression ratio of the engine can be properly increased, and the power output at low rotating speed is improved. Meanwhile, the density of cold air is high, so under the same condition, the design can improve the air intake density of the engine, improve the air intake amount and further increase the power of the engine, therefore, the working efficiency of the engine is higher, and the air intake pipe of the direct injection engine in the cylinder is a pipeline for transporting fresh air to the air intake end of the cylinder of the engine.
Because fresh air is when getting into, be heated through turbocharging, reduce the inlet air temperature of engine through the intercooler before admitting air, the cold air through the intercooler cooling is transported to engine cylinder inlet end to the rethread intake pipe, the intake pipe directly exposes in the engine compartment in the transportation, the temperature in engine compartment is higher, therefore the intake pipe can receive external environment's temperature influence, and then have certain influence to the cold air cooling effect after the cooling, consequently thermal-insulated and the heat preservation performance of intake pipe have crucial influence to the air intake flow that finally gets into in the cylinder, so, we provide a direct injection engine intake pipe in jar and preparation method.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an intake pipe of a direct injection engine and a preparation method thereof, and solves the problem of improving the heat insulation performance of the intake pipe of the direct injection engine.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the air inlet pipe comprises an air inlet pipe body, the air inlet pipe body is a silicone tube, the two ends of the air inlet pipe body are respectively provided with an air inlet and an air outlet, a heat insulation cover is sleeved on an intermediate pipeline at the two ends of the air inlet pipe body and comprises a first clamping shell and a second clamping shell, the first clamping shell and the second clamping shell are identical in shape and size, and the first clamping shell and the second clamping shell are assembled and buckled on the outer surface of the air inlet pipe body.
A preparation method of an air inlet pipe of a direct injection engine comprises the following steps:
s1: the air inlet pipe body is prepared by preparing materials of the air inlet pipe body, finishing independent production and preparation of the air inlet pipe body, stirring and mixing raw materials of the silicone tube of the air inlet pipe body, performing extrusion molding through a grinding tool of an extruder, cooling and drying, polishing the wall surface of a pipeline to be smooth and free of burrs, spraying a heat insulation coating on the surface of the air inlet pipe body, and drying.
S2: preparing a heat shield material, finishing independent production preparation of the heat shield, stirring and mixing raw materials for preparing rubber of the heat shield, extruding and molding the raw materials through corresponding extruder grinding tools, respectively manufacturing a first inner semi-ring sleeve, a first hollow semi-ring sleeve, a first outer semi-ring sleeve, a second inner semi-ring sleeve, a second hollow semi-ring sleeve and a second outer semi-ring sleeve, cooling and drying, and punching the flange positions of the first outer semi-ring sleeve and the second outer semi-ring sleeve through punching equipment to form mounting holes.
S3: the assembling of the heat shield comprises the steps of adhering a first hollow semi-ring pipe on a first inner semi-ring sleeve through glue, pressing for shaping, adhering a first outer semi-ring sleeve on the first inner semi-ring sleeve on the surface of the first hollow semi-ring pipe through the glue, pressing for shaping into an integral structure, adhering a second hollow semi-ring pipe on a second inner semi-ring sleeve through the glue, pressing for shaping, adhering a second outer semi-ring sleeve on the second inner semi-ring sleeve on the surface of the second hollow semi-ring pipe through the glue, pressing for shaping into an integral structure, adhering an elastic cushion layer on the positions of mounting holes on the flanges of the first outer semi-ring sleeve and the second outer semi-ring sleeve through the glue, corresponding the positions of the mounting holes on the elastic cushion layer, and pressing for shaping.
S4: assembling the heat insulation cover and the air inlet pipe body, aligning the first clamping shell and the second clamping shell, respectively clamping and sleeving the first clamping shell and the second clamping shell above and below the air inlet pipe body, attaching the inner walls of the first inner semi-ring sleeve and the second inner semi-ring sleeve to the outer wall of the air inlet pipe body for wrapping, and installing a locking tool at the mounting hole to lock the first outer semi-ring sleeve and the second outer semi-ring sleeve of the first clamping shell and the second clamping shell, so that buckling can be completed.
Preferably, the first clamping shell comprises a first inner half ring sleeve, a first hollow half ring sleeve and a first outer half ring sleeve, the first hollow half ring sleeves are fixedly sleeved on the outer wall of the first inner half ring sleeve at equal intervals, the first outer half ring sleeve is sleeved outside the first inner half ring sleeve, the inner wall of the first outer half ring sleeve is fixedly connected with the first hollow half ring sleeves, a flange perpendicular to the end face extends outwards from the first outer half ring sleeve, and a cavity is formed between the first inner half ring sleeve and the first outer half ring sleeve by separating the first hollow half ring sleeve from each other.
Preferably, the second clamping shell comprises a second inner semi-ring sleeve, a second hollow semi-ring sleeve and a second outer semi-ring sleeve, the second hollow semi-ring sleeves are fixedly sleeved on the outer wall of the second inner semi-ring sleeve at equal intervals, the second outer semi-ring sleeve is sleeved outside the second inner semi-ring sleeve, the inner wall of the second outer semi-ring sleeve is fixedly connected with the second hollow semi-ring sleeves, a flange perpendicular to the end face extends outwards from the second outer semi-ring sleeve, the second inner semi-ring sleeve and the second outer semi-ring sleeve are separated by the second hollow semi-ring sleeve to form a cavity, the first clamping shell and the second clamping shell are buckled and locked through bolts, and the bolts are locked at the flange positions of the first outer semi-ring sleeve and the second outer semi-ring sleeve.
Preferably, the elastic cushion layers arranged on the flange contact surfaces of the first outer half ring and the second outer half ring are sponge cushions.
Preferably, the heat insulation coating sprayed on the surface of the air inlet pipe body is ceramic heat insulation paint.
(III) advantageous effects
The invention provides an air inlet pipe of a direct injection engine in a cylinder and a preparation method thereof, and the air inlet pipe has the following beneficial effects:
according to the invention, by arranging the air inlet pipe body, the heat insulation cover and the elastic cushion layer, when the air inlet pipe is used, the air inlet pipe body, the heat insulation cover and the elastic cushion layer form an integrated in-cylinder direct injection engine air inlet pipe, the air inlet pipe body is a silica gel pipeline and is wrapped by the heat insulation cover, the thickness of the whole heat insulation wall surface of an air inlet channel can be thickened, the heat insulation effect is improved, the heat insulation cover is formed by buckling the first clamping shell and the second clamping shell, the buckling gap between the first clamping shell and the second clamping shell is sealed through the elastic cushion layer, the heat insulation effect can be realized, the first clamping shell and the second clamping shell are both of a double-layer structure, a hollow cavity is formed in the middle, and the first clamping shell and the second clamping shell are tightly buckled through bolts, the heat conduction is reduced through the cavity, the heat insulation effect can be realized, and the problem.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a front view of the heat shield of the present invention;
FIG. 4 is a rear view of the heat shield of the present invention;
FIG. 5 is a top view of the air inlet tube body of the present invention;
FIG. 6 is a top view of a second structure of the air inlet pipe body of the present invention;
FIG. 7 is a bottom view of a structure of the air inlet pipe body of the present invention;
FIG. 8 is a top view of a second card housing of the present invention;
FIG. 9 is a bottom view of the card housing of the present invention;
FIG. 10 is an enlarged view of the structure of FIG. 4 at A according to the present invention.
In the figure: 1. an air inlet pipe body; 2. a heat shield; 3. clamping a shell I; 301. a first inner half-collar; 302. a first hollow half-collar; 303. a first outer half-collar; 4. a second clamping shell; 401. a second inner half-ring sleeve; 402. a second hollow half-collar; 403. a second outer half-ring sleeve; 5. an elastic cushion layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 10, the present invention provides a technical solution: the utility model provides an in-cylinder direct injection engine intake pipe and preparation method thereof, including intake pipe body 1, intake pipe body 1 is the silicone tube, intake pipe body 1's both ends are air inlet and gas outlet respectively, intake pipe body 1 is used for transporting the effect in the cylinder of the fresh air that enters the intercooler cooling, intake pipe body 1's air inlet is connected with the end of giving vent to anger of intercooler, intake pipe body 1's gas outlet is connected with the cold air inlet end of cylinder, the intermediate pipe cover at intake pipe body 1 both ends is equipped with thermal-insulated cover 2, thermal-insulated cover 2 parcel plays thermal-insulated heat retaining effect in intake pipe body 1 surface, avoid losing by the cold air of the cold air after the intercooler cooling, thermal-insulated cover 2 includes card shell one 3 and card shell two 4, card shell one 3 and card shell two 4's shape and size are the same, card shell one 3 and card shell two 4 equipment and lock are at intake pipe body.
A preparation method of an air inlet pipe of a direct injection engine comprises the following steps:
s1: the air inlet pipe body 1 is prepared by materials, the air inlet pipe body 1 is prepared by independent production, the silicone tube of the air inlet pipe body 1 is prepared by raw materials, the raw materials are stirred and mixed to be extruded and molded by a grinding tool of an extruder, and then the mixture is cooled and dried, the wall surface of a pipeline is polished to be smooth and free of burrs, and then the surface of the air inlet pipe body 1 is sprayed with a heat insulation coating and dried.
S2: preparing materials of the heat shield 2, completing independent production and preparation of the heat shield 2, stirring and mixing raw materials for preparing rubber of the heat shield 2, extruding and molding the raw materials through corresponding extruder dies, respectively manufacturing a first inner half ring sleeve 301, a first hollow half ring 302, a first outer half ring sleeve 303, a second inner half ring sleeve 401, a second hollow half ring sleeve 402 and a second outer half ring sleeve 403, cooling and drying, and punching the flange positions of the first outer half ring sleeve 303 and the second outer half ring sleeve 403 through punching equipment to form mounting holes.
S3: assembling the heat shield 2, bonding the first hollow semi-ring 302 on the first inner semi-ring sleeve 301 through glue, pressing for shaping, bonding the first outer semi-ring sleeve 303 on the first inner semi-ring sleeve 301 on the surface of the first hollow semi-ring 302 through glue, pressing for shaping into an integral structure, bonding the second hollow semi-ring 402 on the second inner semi-ring sleeve 401 through glue, pressing for shaping, bonding the second outer semi-ring sleeve 403 on the second inner semi-ring sleeve 401 on the surface of the second hollow semi-ring sleeve 402 through glue, pressing for shaping into an integral structure, bonding the elastic cushion layer 5 on the mounting holes on the flanges of the first outer semi-ring sleeve 303 and the second outer semi-ring sleeve 403 through glue, and pressing for shaping, wherein the preset holes on the elastic cushion layer 5 correspond to the mounting holes.
S4: assembling the heat shield 2 and the air inlet pipe body 1, aligning the first clamping shell 3 and the second clamping shell 4, respectively clamping and sleeving the upper part and the lower part of the air inlet pipe body 1, attaching the inner walls of the first inner half-ring sleeve 301 and the second inner half-ring sleeve 401 to the outer wall of the air inlet pipe body 1 for wrapping, and installing a locking tool at the mounting hole to lock the first outer half-ring sleeve 303 and the second outer half-ring sleeve 403 of the first clamping shell 3 and the second clamping shell 4, so as to complete buckling.
As a technical optimization scheme of the invention, the first clamping shell 3 comprises a first inner half ring sleeve 301, a first hollow half ring 302 and a first outer half ring sleeve 303, wherein a plurality of first hollow half ring 302 are fixedly sleeved on the outer wall of the first inner half ring sleeve 301 at equal intervals, the first outer half ring sleeve 303 is sleeved outside the first inner half ring sleeve 301, the inner wall of the first outer half ring sleeve 303 is fixedly connected with the plurality of first hollow half ring 302, a flange vertical to the end face extends outwards from the first outer half ring sleeve 303, and a cavity is formed between the first inner half ring sleeve 301 and the first outer half ring sleeve 303 by separating the first hollow half ring 302.
As a technical optimization scheme of the invention, the clamping shell II 4 comprises a second inner semi-ring sleeve 401, a second hollow semi-ring 402 and a second outer semi-ring sleeve 403, a plurality of second hollow semi-ring sleeves 402 are fixedly sleeved on the outer wall of the second inner semi-ring sleeve 401 at equal intervals, the second outer semi-ring sleeve 403 is sleeved on the outer part of the second inner semi-ring sleeve 401, the inner wall of the second outer semi-ring sleeve 403 is fixedly connected with a plurality of second hollow semi-ring sleeves 402, a flange vertical to the end surface extends outwards from the second outer semi-ring sleeve 403, the second inner semi-ring sleeve 401 and the second outer semi-ring sleeve 403 are separated by the second hollow semi-ring sleeve 402 to form a cavity, the clamping shell I3 and the clamping shell II 4 are buckled and locked by bolts, the bolts are locked at the positions of the flanges of the first outer semi-ring sleeve 303 and the second outer semi-ring sleeve 403, the first hollow semi-ring 302 and the second hollow semi-ring sleeve 402 are both C-shaped hollow pipes, and the hollow pipes play a role in reinforcing and strengthening the structural strength of the clamping shell I3 and the, and a cavity is formed between the first clamping shell 3 and the second clamping shell 4 to play a role in heat insulation and heat preservation for reducing heat conduction.
As a technical optimization scheme of the present invention, the elastic cushion layer 5 disposed on the flange contact surface of the first outer half hoop 303 and the second outer half hoop 403 is a foam pad, the foam pad ensures that the first outer half hoop 303 and the second outer half hoop 403 are tightly fastened, and the gap is sealed by the foam pad, so as to reduce heat conduction.
As a technical optimization scheme of the invention, the heat insulation coating sprayed on the surface of the air inlet pipe body 1 is ceramic heat insulation paint.
In conclusion, the intake pipe body 1, the heat shield 2 and the elastic cushion layer 5 are arranged, so that the problem of improving the heat insulation performance of the intake pipe of the direct injection engine is solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an in-cylinder direct injection engine intake pipe, includes intake pipe body (1), its characterized in that: the air inlet pipe comprises an air inlet pipe body (1), a heat insulation cover (2) and a clamping shell II (4), wherein the air inlet pipe body (1) is a silicone tube, the two ends of the air inlet pipe body (1) are respectively provided with an air inlet and an air outlet, the middle pipelines at the two ends of the air inlet pipe body (1) are sleeved with the heat insulation cover (2), the heat insulation cover (2) comprises the clamping shell I (3) and the clamping shell II (4), the clamping shell I (3) and the clamping shell II (4) are identical in shape and size, and the clamping shell I (3) and the clamping shell II (4) are assembled and;
a preparation method of an air inlet pipe of a direct injection engine in a cylinder is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing a material of the air inlet pipe body (1), namely firstly completing independent production and preparation of the air inlet pipe body (1), stirring and mixing a silicone tube preparation raw material of the air inlet pipe body (1), extruding and molding the raw material by a grinding tool of an extruder, cooling and drying the raw material, polishing the wall surface of a pipeline to be smooth and burr-free, spraying a heat insulation coating on the surface of the air inlet pipe body (1), and drying the coating;
s2: preparing a heat shield (2) material, namely completing independent production preparation of the heat shield (2) firstly, stirring and mixing rubber preparation raw materials of the heat shield (2), extruding and molding the raw materials through corresponding extruder dies, respectively manufacturing a first inner semi-ring sleeve (301), a first hollow semi-ring sleeve (302), a first outer semi-ring sleeve (303), a second inner semi-ring sleeve (401), a second hollow semi-ring sleeve (402) and a second outer semi-ring sleeve (403), cooling and drying, and punching flange positions of the first outer semi-ring sleeve (303) and the second outer semi-ring sleeve (403) through punching equipment to form mounting holes;
s3: assembling a heat insulation cover (2), bonding a first hollow semi-ring (302) on a first inner semi-ring sleeve (301) through glue, pressing for shaping, bonding a first outer semi-ring sleeve (303) on the first inner semi-ring sleeve (301) on the surface of the first hollow semi-ring (302) through glue, pressing for shaping into an integral structure, bonding a second hollow semi-ring (402) on a second inner semi-ring sleeve (401) through glue, pressing for shaping, bonding a second outer semi-ring sleeve (403) on the second inner semi-ring sleeve (401) on the surface of the second hollow semi-ring (402) through glue, pressing for shaping into an integral structure, bonding an elastic cushion layer (5) on the positions of mounting holes on flanges of the first outer semi-ring sleeve (303) and the second outer semi-ring sleeve (403) through glue, and corresponding the positions of the mounting holes on the elastic cushion layer (5) to press for shaping;
s4: assembling the heat shield (2) and the air inlet pipe body (1), aligning the first clamping shell (3) and the second clamping shell (4) and respectively clamping the first clamping shell (3) and the second clamping shell (4) above and below the air inlet pipe body (1), wrapping the inner wall of the air inlet pipe body (1) by a first inner half-ring sleeve (301) and a second inner half-ring sleeve (401), installing a locking tool at a mounting hole to lock the first outer half-ring sleeve (303) and the second outer half-ring sleeve (403) of the first clamping shell (3) and the second clamping shell (4), and completing the buckling.
2. The intake pipe of the direct injection engine and the preparation method thereof according to claim 1, wherein: the first clamping shell (3) comprises a first inner semi-ring sleeve (301), a plurality of first hollow semi-ring pipes (302) and a first outer semi-ring sleeve (303), the first hollow semi-ring pipes (302) are fixedly sleeved on the outer wall of the first inner semi-ring sleeve (301) at equal intervals, the first outer semi-ring sleeve (303) is sleeved outside the first inner semi-ring sleeve (301), the inner wall of the first outer semi-ring sleeve (303) is fixedly connected with the first hollow semi-ring pipes (302), a flange perpendicular to the end face extends outwards from the first outer semi-ring sleeve (303), and the first inner semi-ring sleeve (301) and the first outer semi-ring sleeve (303) are separated by the first hollow semi-ring pipe (302) to form a cavity.
3. The intake pipe of the direct injection engine and the preparation method thereof according to claim 2, wherein: the second clamping shell (4) comprises a second inner semi-ring sleeve (401), a second hollow semi-ring sleeve (402) and a second outer semi-ring sleeve (403), a plurality of second hollow semi-ring sleeves (402) are fixedly sleeved on the outer wall of the second inner semi-ring sleeve (401) at equal intervals, the second outer half-ring sleeve (403) is sleeved outside the second inner half-ring sleeve (401), and the inner wall of the second outer semi-ring sleeve (403) is fixedly connected with a plurality of second hollow semi-ring pipes (402), the second outer semi-ring sleeve (403) extends outwards to form a flange perpendicular to the end face, the second inner semi-ring sleeve (401) and the second outer semi-ring sleeve (403) are separated by a second hollow semi-ring sleeve (402) to form a cavity, the first clamping shell (3) and the second clamping shell (4) are buckled and locked through bolts, and the bolts are locked at the flange positions of the first outer semi-ring sleeve (303) and the second outer semi-ring sleeve (403).
4. The intake pipe of the direct injection engine and the preparation method thereof according to claim 3, wherein: the elastic cushion layer (5) arranged on the flange contact surface of the first outer half ring sleeve (303) and the second outer half ring sleeve (403) is a spongy cushion.
5. The intake pipe of the direct injection engine and the preparation method thereof according to claim 1, wherein: the heat insulation coating sprayed on the surface of the air inlet pipe body (1) is ceramic heat insulation paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010776593.6A CN112160853A (en) | 2020-08-05 | 2020-08-05 | In-cylinder direct injection engine air inlet pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010776593.6A CN112160853A (en) | 2020-08-05 | 2020-08-05 | In-cylinder direct injection engine air inlet pipe and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112160853A true CN112160853A (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010776593.6A Pending CN112160853A (en) | 2020-08-05 | 2020-08-05 | In-cylinder direct injection engine air inlet pipe and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5038725A (en) * | 1988-12-02 | 1991-08-13 | Hitachi, Ltd. | Intake manifold of internal combustion engine |
| JPH07127538A (en) * | 1993-10-29 | 1995-05-16 | Toyoda Gosei Co Ltd | Manufacture of sound eliminating hose |
| JP2003176717A (en) * | 2002-12-05 | 2003-06-27 | Ibiden Co Ltd | Converter for exhaust gas emission control, and method for installing heat insulation seal material onto the same converter |
| CN206205972U (en) * | 2016-10-18 | 2017-05-31 | 上海岱澜机械制造有限公司 | A kind of diesel engine for ship blast pipe front end heat shield |
| CN207073429U (en) * | 2017-06-15 | 2018-03-06 | 华晨汽车集团控股有限公司 | The heat shield of turbine engine with supercharge prime catalytic converter assembly |
| CN209539433U (en) * | 2019-02-27 | 2019-10-25 | 苏州普科环境技术有限公司 | A kind of heat insulation shield with flange |
| CN110985181A (en) * | 2019-11-28 | 2020-04-10 | 无锡曙光模具有限公司 | Pipeline heat shield structure of automobile exhaust system and machining process thereof |
-
2020
- 2020-08-05 CN CN202010776593.6A patent/CN112160853A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5038725A (en) * | 1988-12-02 | 1991-08-13 | Hitachi, Ltd. | Intake manifold of internal combustion engine |
| JPH07127538A (en) * | 1993-10-29 | 1995-05-16 | Toyoda Gosei Co Ltd | Manufacture of sound eliminating hose |
| JP2003176717A (en) * | 2002-12-05 | 2003-06-27 | Ibiden Co Ltd | Converter for exhaust gas emission control, and method for installing heat insulation seal material onto the same converter |
| CN206205972U (en) * | 2016-10-18 | 2017-05-31 | 上海岱澜机械制造有限公司 | A kind of diesel engine for ship blast pipe front end heat shield |
| CN207073429U (en) * | 2017-06-15 | 2018-03-06 | 华晨汽车集团控股有限公司 | The heat shield of turbine engine with supercharge prime catalytic converter assembly |
| CN209539433U (en) * | 2019-02-27 | 2019-10-25 | 苏州普科环境技术有限公司 | A kind of heat insulation shield with flange |
| CN110985181A (en) * | 2019-11-28 | 2020-04-10 | 无锡曙光模具有限公司 | Pipeline heat shield structure of automobile exhaust system and machining process thereof |
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