CN105370362A - Engine heat insulation structure - Google Patents
Engine heat insulation structure Download PDFInfo
- Publication number
- CN105370362A CN105370362A CN201510852517.8A CN201510852517A CN105370362A CN 105370362 A CN105370362 A CN 105370362A CN 201510852517 A CN201510852517 A CN 201510852517A CN 105370362 A CN105370362 A CN 105370362A
- Authority
- CN
- China
- Prior art keywords
- exhaust manifold
- gas exhaust
- lower cover
- sheet metal
- heat insulation
- 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
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
The invention discloses an engine heat insulation structure. The engine heat insulation structure comprises an upper exhaust manifold shield, a lower exhaust manifold shield, an upper three-way catalyst shield and a lower three-way catalyst shield. The inner side and the outer side of the upper exhaust manifold shield are made of metal plates, and a ceramic fiber paperboard is arranged between the metal plates. The upper exhaust manifold shield and the lower exhaust manifold shield are detachably and movably connected through a connector. The engine heat insulation structure improves the heat insulation effect, prevents resonance of a heat shield and an engine and improves the rigidity of the heat shield.
Description
Technical field
The present invention relates to a kind of heat-insulating structure, particularly relate to a kind of motor heat-insulating structure.
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 motor heat-insulating structure, comprise gas exhaust manifold upper cover, gas exhaust manifold upper cover, ternary catalyzing unit upper cover and ternary catalyzing unit lower cover, in gas exhaust manifold lower cover, outside all adopts sheet metal to make, and is provided with ceramic fiber cardboard between sheet metal; Be connected by link between gas exhaust manifold upper cover with gas exhaust manifold lower cover.
Conveniently process and improve effect of heat insulation, gas exhaust manifold lower cover is semicircular arc.
In order to prevent ceramic fiber cardboard from dropping, the sheet metal inside gas exhaust manifold lower cover is connected to upper overturning with the sheet metal outside gas exhaust manifold lower cover.
In order to prevent ceramic fiber cardboard from dropping, the downward flange of the sheet metal outside gas exhaust manifold lower cover is connected with the sheet metal inside gas exhaust manifold lower cover.
In order to increase heat insulation intensity, the outer surface of gas exhaust manifold lower cover all arranges stiffening rib.
In order to increase heat insulation intensity, the thickness of sheet metal is 0.2mm-0.6mm.
In order to increase heat insulation intensity, the thickness of ceramic fiber cardboard is 0.8mm-1.6mm.
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 (7)
1. a motor heat-insulating structure, comprise 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), it is characterized in that: in described gas exhaust manifold lower cover (2), outside all adopts sheet metal (5) to make, and is provided with ceramic fiber cardboard (6) between described sheet metal (5); Be flexibly connected by link (9) is detachable between described gas exhaust manifold upper cover (1) with described gas exhaust manifold lower cover (2).
2. motor heat-insulating structure as claimed in claim 1, is characterized in that: described gas exhaust manifold lower cover (2) is in semicircular arc.
3. motor heat-insulating structure as claimed in claim 1, is characterized in that: the sheet metal (5) of described gas exhaust manifold lower cover (2) inner side is connected to upper overturning with the sheet metal (5) outside described gas exhaust manifold lower cover (2).
4. motor heat-insulating structure as claimed in claim 1, is characterized in that: the downward flange of sheet metal (5) in described gas exhaust manifold lower cover (2) outside is connected with the sheet metal (5) of described gas exhaust manifold lower cover (2) inner side.
5. motor heat-insulating structure as claimed in claim 1 or 2, is characterized in that: the outer surface of described gas exhaust manifold lower cover (2) all arranges stiffening rib.
6. motor heat-insulating structure as claimed in claim 1, is characterized in that: the thickness of described sheet metal (5) is 0.2mm-0.6mm.
7. motor heat-insulating structure as claimed in claim 1, is characterized in that: the thickness of described ceramic fiber cardboard (6) is 0.8mm-1.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852517.8A CN105370362A (en) | 2015-11-30 | 2015-11-30 | Engine heat insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852517.8A CN105370362A (en) | 2015-11-30 | 2015-11-30 | Engine heat insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370362A true CN105370362A (en) | 2016-03-02 |
Family
ID=55372911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510852517.8A Pending CN105370362A (en) | 2015-11-30 | 2015-11-30 | Engine heat insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370362A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083694A (en) * | 1975-03-25 | 1978-04-11 | Nissan Motor Company, Limited | Heat insulating device for an engine exhaust system |
| US4378046A (en) * | 1979-02-28 | 1983-03-29 | Suddeutsche Bremsen A.G. | Protective device for heat emitting structures |
| DE3803644A1 (en) * | 1988-02-06 | 1989-08-17 | Bayerische Motoren Werke Ag | Arrangement for the utilisation of exhaust heat |
| EP0413236A1 (en) * | 1989-08-18 | 1991-02-20 | Rudolf Plate | Heat shield |
| CN202789054U (en) * | 2012-09-19 | 2013-03-13 | 东风汽车公司 | Exhaust manifold thermal protection shield |
| 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 |
| CN204627727U (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 thermal shield assembly |
| CN104918781A (en) * | 2012-11-16 | 2015-09-16 | 莱茵兹-迪兹通斯-有限公司 | Heat shield |
| CN205154340U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine structure that insulates against heat |
-
2015
- 2015-11-30 CN CN201510852517.8A patent/CN105370362A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083694A (en) * | 1975-03-25 | 1978-04-11 | Nissan Motor Company, Limited | Heat insulating device for an engine exhaust system |
| US4378046A (en) * | 1979-02-28 | 1983-03-29 | Suddeutsche Bremsen A.G. | Protective device for heat emitting structures |
| DE3803644A1 (en) * | 1988-02-06 | 1989-08-17 | Bayerische Motoren Werke Ag | Arrangement for the utilisation of exhaust heat |
| EP0413236A1 (en) * | 1989-08-18 | 1991-02-20 | Rudolf Plate | Heat shield |
| CN202789054U (en) * | 2012-09-19 | 2013-03-13 | 东风汽车公司 | Exhaust manifold thermal protection shield |
| CN104918781A (en) * | 2012-11-16 | 2015-09-16 | 莱茵兹-迪兹通斯-有限公司 | Heat shield |
| 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 |
| CN204627727U (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 thermal shield assembly |
| CN205154340U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine structure that insulates against heat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204627727U (en) | Gas exhaust manifold, ternary catalyzing unit thermal shield assembly | |
| CN204627717U (en) | Gas exhaust manifold, ternary catalyzing unit and supercharger heat shield assembly | |
| CN205154338U (en) | Heat insulating cover | |
| CN202273741U (en) | Stainless steel exhaust manifold structure | |
| CN205154340U (en) | Engine structure that insulates against heat | |
| CN205154345U (en) | Engine separates heat exchanger structure | |
| CN205154344U (en) | Engine heat -proof device | |
| CN205154341U (en) | Ternary separates heat exchanger device | |
| CN205154337U (en) | Separate heat exchanger structure | |
| CN205154343U (en) | Separate heat exchanger device | |
| CN211474221U (en) | Detachable heat insulation structure of automobile exhaust pipe | |
| CN205154339U (en) | Engine separates heat exchanger | |
| CN105508011A (en) | Heat shield device | |
| CN205225392U (en) | Three way catalyst converter heat -proof device | |
| CN205154342U (en) | Three way catalyst converter structure that insulates against heat | |
| CN105370362A (en) | Engine heat insulation structure | |
| CN105370363A (en) | Three-way heat shield device | |
| CN105370366A (en) | Heat insulation cover structure of engine | |
| CN105370365A (en) | Heat insulation cover structure | |
| CN105443220A (en) | Thermal isolation shield | |
| CN105402014A (en) | Heat insulating device for engine | |
| CN105370367A (en) | Heat-insulating cover for engine | |
| CN205532823U (en) | R10C exhaust manifold , three way catalyst converter separate heat exchanger assembly | |
| CN208702512U (en) | A kind of exhaust pipe heat insulation shield | |
| CN105370364A (en) | Heat insulation structure for three-way catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |