CN105370367A - Heat-insulating cover for engine - Google Patents
Heat-insulating cover for engine Download PDFInfo
- Publication number
- CN105370367A CN105370367A CN201510854691.6A CN201510854691A CN105370367A CN 105370367 A CN105370367 A CN 105370367A CN 201510854691 A CN201510854691 A CN 201510854691A CN 105370367 A CN105370367 A CN 105370367A
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- China
- Prior art keywords
- catalyzing unit
- ternary catalyzing
- exhaust manifold
- gas exhaust
- lower cover
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Abstract
The invention discloses a heat-insulating cover for an engine. The heat-insulating cover for the engine comprises an exhaust manifold upper cover, an exhaust manifold lower cover, a three-way catalytic converter upper cover and a three-way catalytic converter lower cover. The inside and the outside of the exhaust manifold upper cover are both made of metal plates. Ceramic fiber paperboards are arranged among the metal plates. The exhaust manifold upper cover is in flexible connection with the exhaust manifold lower cover through connecting pieces in a detachable mode. According to the heat-insulating cover for the engine, the heat insulating effect is improved, the resonance between the heat-insulating cover and the engine is avoided, and the stiffness of the heat-insulating cover is improved.
Description
Technical field
The present invention relates to a kind of heat-proof device, particularly relate to a kind of motor heat-proof device.
Background technique
The vent systems of automobile is the important assembly of discharge and noise reduction, and it is primarily of compositions such as gas exhaust manifold, catalyzing type purifier, silencing apparatus, tail pipes.Its major function be the waste gas that motor produces in combustion is collected in multiple cylinder, clean (through ternary catalyzing unit), eliminate the noise, then discharge after guiding to car, and the Main Function of the heat insulation assembly of gas exhaust manifold, ternary catalyzing unit blocks gas exhaust manifold, heat exchange between ternary catalyzing unit and its Surrounding Parts.Its shape depends primarily on the requirement of gas exhaust manifold, space between ternary catalyzing unit and its Surrounding Parts and assembly technology.At present, the most structure of tradition thermal shield is that individual layer aluminium foil or the compacting of double-level-metal plate form, its effect of heat insulation is poor, simultaneously, owing to not being interconnected in thermal shield assembly, cause the rigidity of thermal shield assembly lower and make thermal shield easily and motor produce resonance phenomenon, and then affect vehicle performance and driving experience.
Therefore those skilled in the art are devoted to develop a kind of thermal shield that effectively can improve effect of heat insulation.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of thermal shield that effectively can improve effect of heat insulation.
For achieving the above object, the invention provides a kind of engine heat shield, comprise gas exhaust manifold and ternary catalyzing unit, gas exhaust manifold is provided with the first housing, first housing comprises gas exhaust manifold upper cover in semicircular arc and gas exhaust manifold lower cover, and gas exhaust manifold upper cover is identical with the internal diameter of gas exhaust manifold lower cover; Gas exhaust manifold upper cover is arranged on the top of gas exhaust manifold, and gas exhaust manifold lower cover is arranged on the bottom of gas exhaust manifold, and gas exhaust manifold upper cover is flexibly connected with gas exhaust manifold lower cover is detachable, and the outer surface of gas exhaust manifold upper cover and gas exhaust manifold lower cover all arranges stiffening rib;
Ternary catalyzing unit is provided with the second housing, second housing is hollow tubular, second housing comprises ternary catalyzing unit upper cover and ternary catalyzing unit lower cover, and the interior outside of ternary catalyzing unit upper cover and ternary catalyzing unit lower cover all adopts sheet metal to make, and the thickness of sheet metal is 0.2mm-0.6mm;
The downward flange of sheet metal outside ternary catalyzing unit lower cover is connected with the sheet metal inside ternary catalyzing unit lower cover; Be provided with ceramic fiber cardboard between sheet metal outside in ternary catalyzing unit lower cover, the thickness of ceramic fiber cardboard is 0.8mm-1.6mm, and the outer surface of ternary catalyzing unit upper cover and ternary catalyzing unit lower cover is provided with stiffening rib;
Ternary catalyzing unit upper cover is arranged on the top of ternary catalyzing unit, ternary catalyzing unit upper cover and the detachable active link of gas exhaust manifold upper cover, ternary catalyzing unit lower cover is arranged on the bottom of ternary catalyzing unit, ternary catalyzing unit lower cover is flexibly connected with gas exhaust manifold lower cover is detachable, ternary catalyzing unit upper cover and ternary catalyzing unit lower cover are provided with junction surface, each junction surface is provided with link, and ternary catalyzing unit upper cover is linked by link detachable flexible with ternary catalyzing unit lower cover.
In order to increase heat insulation intensity, the thickness of sheet metal is 0.5mm; The thickness of ceramic fiber cardboard is 1mm.
The invention has the beneficial effects as follows:
1) improve effect of heat insulation;
2) thermal shield is avoided and motor resonates;
3) improve the rigidity of thermal shield.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation of ternary catalyzing unit lower cover in the present invention.
Fig. 4 is the turnup structure schematic diagram of sheet metal in the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As Figure 1-Figure 4, the F15D gas exhaust manifold of the present embodiment, ternary catalyzing unit thermal shield assembly, comprise the gas exhaust manifold upper cover 1 being arranged on gas exhaust manifold top, the gas exhaust manifold lower cover 2 being arranged on gas exhaust manifold bottom, be arranged on the ternary catalyzing unit upper cover 3 on ternary catalyzing unit top and be arranged on the ternary catalyzing unit lower cover 4 of ternary catalyzing unit bottom.Ternary catalyzing unit upper cover 3, ternary catalyzing unit lower cover 4 is dismountable is combined into hollow tubular structure, parcel shape is formed to ternary catalyzing unit and reaches better effect of heat insulation, between gas exhaust manifold upper cover 1 and gas exhaust manifold lower cover 2, between ternary catalyzing unit upper cover 3 and ternary catalyzing unit lower cover 4, and all by being flexibly connected dismountable being fixed together between gas exhaust manifold lower cover 2 with ternary catalyzing unit lower cover 4.Can dismantle efficiently.
In the present embodiment, described gas exhaust manifold upper cover 1, gas exhaust manifold lower cover 2, ternary catalyzing unit upper cover 3 and ternary catalyzing unit lower cover 4 are the stratiform structure of three layers, wherein, two-layer is up and down sheet metal 5, mesosphere is ceramic fiber cardboard 6, wherein, the edge of the present embodiment upper strata sheet metal has and forms one between downward flange 7 and lower metal plate ceramic fiber cardboard 6 is wrapped in interior seal space, realize fixing the sealing of ceramic fiber cardboard 6, be unlikely to come off.Certainly, also can arrange to upper overturning at lower metal plate, and form one between the sheet metal of upper strata ceramic fiber cardboard is wrapped in interior seal space, reach same object.
During concrete enforcement, the thickness of sheet metal 5 is thinner relative to ceramic fiber cardboard 6, if the thickness range 0.2mm-0.6mm of sheet metal 5, the thickness of ceramic fiber cardboard 6 can be 0.8mm-1.6mm, the total thickness of thermal shield is made to remain on about 2mm, in the present embodiment, the thickness of sheet metal 5 is 0.5mm, and the thickness of ceramic beaverboard 6 is 1mm, can reach more excellent effect of heat insulation.
The present embodiment is by gas exhaust manifold upper cover 1, gas exhaust manifold lower cover 2, ternary catalyzing unit 3 upper cover and ternary catalyzing unit lower cover 4 pairs of F15D h type engine h gas exhaust manifolds, ternary catalyzing unit forms parcel and realizes heat insulation, simultaneously, be fixed four by being flexibly connected, increase fixed effect, and safety cover assembly structure is set to three-decker, while improving its effect of heat insulation, also its rigidity and natural frequency can be improved, reduce the thermal shield local common sound that forced vibration amplitude and resonance produce under encouraging by other, contribute to the noise and the resonance risk that reduce vent systems.
As the improvement of the present embodiment, gas exhaust manifold upper cover 1, gas exhaust manifold lower cover 2 are the semicircular arc structure that diameter is identical, two side direction arcuate extents of semi-circle are stretched to be provided with and are connected plane 8, connect in plane and be provided with link 9, can be connected with the upper manifold support of exhaust, reduce the linkage structure of support, make the structure of supporting structure simpler.
Between gas exhaust manifold upper cover 1 and gas exhaust manifold lower cover 2, between ternary catalyzing unit upper cover 3 and ternary catalyzing unit lower cover 4, between gas exhaust manifold upper cover 1 and ternary catalyzing unit upper cover 3, between gas exhaust manifold lower cover 2 and ternary catalyzing unit lower cover 4 be provided with the mutually conformal joint overlaped, described ternary catalyzing unit upper cover 3 is arranged on the joint between ternary catalyzing unit lower cover 4 and is connected in plane 8, can make full use of and connect plane 8, reduce connection space, improve space availability ratio.
As the improvement of the present embodiment, described joint is provided with at least one bar hole and a circular port, and described flexible connection is for being arranged in bar hole and circular port for fastening bolt or screw.
The outer surface of described gas exhaust manifold upper cover 1, gas exhaust manifold lower cover 2, ternary catalyzing unit upper cover 3 and ternary catalyzing unit lower cover 4 is provided with stiffening rib, increases the structural strength of thermal shield.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. an engine heat shield, comprise gas exhaust manifold and ternary catalyzing unit, it is characterized in that: described gas exhaust manifold is provided with the first housing, described first housing comprises gas exhaust manifold upper cover (1) in semicircular arc and gas exhaust manifold lower cover (2), and described gas exhaust manifold upper cover (1) is identical with the internal diameter of described gas exhaust manifold lower cover (2); Described gas exhaust manifold upper cover (1) is arranged on the top of described gas exhaust manifold, described gas exhaust manifold lower cover (2) is arranged on the bottom of described gas exhaust manifold, described gas exhaust manifold upper cover (1) is flexibly connected with described gas exhaust manifold lower cover (2) is detachable, and described gas exhaust manifold upper cover (1) all arranges stiffening rib with the outer surface of described gas exhaust manifold lower cover (2);
Described ternary catalyzing unit is provided with the second housing, described second housing is hollow tubular, described second housing comprises ternary catalyzing unit upper cover (3) and ternary catalyzing unit lower cover (4), described ternary catalyzing unit upper cover (3) all adopts sheet metal (5) to make with the interior outside of described ternary catalyzing unit lower cover (4), and the thickness of described sheet metal (5) is 0.2mm-0.6mm;
The downward flange of sheet metal (5) in described ternary catalyzing unit lower cover (4) outside is connected with the sheet metal (5) of described ternary catalyzing unit lower cover (4) inner side; Ceramic fiber cardboard (6) is provided with between sheet metal (5) outside in described ternary catalyzing unit lower cover (4), the thickness of described ceramic fiber cardboard (6) is 0.8mm-1.6mm, and described ternary catalyzing unit upper cover (3) is provided with stiffening rib with the outer surface of described ternary catalyzing unit lower cover (4);
Described ternary catalyzing unit upper cover (3) is arranged on the top of described ternary catalyzing unit, described ternary catalyzing unit upper cover (3) and the detachable active link of described gas exhaust manifold upper cover (1), described ternary catalyzing unit lower cover (4) is arranged on the bottom of described ternary catalyzing unit, described ternary catalyzing unit lower cover (4) is flexibly connected with described gas exhaust manifold lower cover (2) is detachable, described ternary catalyzing unit upper cover (3) and described ternary catalyzing unit lower cover (4) are provided with junction surface (8), each described junction surface (8) is provided with link (9), described ternary catalyzing unit upper cover (3) is linked by described link (9) detachable flexible with described ternary catalyzing unit lower cover (4).
2. engine heat shield as claimed in claim 1, is characterized in that: the thickness of described sheet metal (5) is 0.5mm; The thickness of described ceramic fiber cardboard (6) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854691.6A CN105370367A (en) | 2015-11-30 | 2015-11-30 | Heat-insulating cover for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854691.6A CN105370367A (en) | 2015-11-30 | 2015-11-30 | Heat-insulating cover for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370367A true CN105370367A (en) | 2016-03-02 |
Family
ID=55372916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510854691.6A Pending CN105370367A (en) | 2015-11-30 | 2015-11-30 | Heat-insulating cover for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370367A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060166584A1 (en) * | 2005-01-25 | 2006-07-27 | Ibiden Co., Ltd. | Heat insulating member for end cone portion of exhaust gas conversion apparatus |
| CN202157856U (en) * | 2011-07-07 | 2012-03-07 | 泉州市双塔汽车零件有限公司 | Novel exhaust manifold heat shield |
| CN203626938U (en) * | 2013-12-26 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Integrated type thermally-insulated shroud for exhaust manifold and catalytic converter of engine |
| CN204099024U (en) * | 2014-09-29 | 2015-01-14 | 安徽江淮汽车股份有限公司 | A kind of gas exhaust manifold thermal baffle |
| CN204627717U (en) * | 2015-04-30 | 2015-09-09 | 重庆祥吉机械制造有限公司 | Gas exhaust manifold, ternary catalyzing unit and supercharger heat shield assembly |
| CN205154339U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine separates heat exchanger |
-
2015
- 2015-11-30 CN CN201510854691.6A patent/CN105370367A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060166584A1 (en) * | 2005-01-25 | 2006-07-27 | Ibiden Co., Ltd. | Heat insulating member for end cone portion of exhaust gas conversion apparatus |
| CN202157856U (en) * | 2011-07-07 | 2012-03-07 | 泉州市双塔汽车零件有限公司 | Novel exhaust manifold heat shield |
| CN203626938U (en) * | 2013-12-26 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Integrated type thermally-insulated shroud for exhaust manifold and catalytic converter of engine |
| CN204099024U (en) * | 2014-09-29 | 2015-01-14 | 安徽江淮汽车股份有限公司 | A kind of gas exhaust manifold thermal baffle |
| CN204627717U (en) * | 2015-04-30 | 2015-09-09 | 重庆祥吉机械制造有限公司 | Gas exhaust manifold, ternary catalyzing unit and supercharger heat shield assembly |
| CN205154339U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine separates heat exchanger |
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Application publication date: 20160302 |