CN105402014A - Heat insulating device for engine - Google Patents
Heat insulating device for engine Download PDFInfo
- Publication number
- CN105402014A CN105402014A CN201510853969.8A CN201510853969A CN105402014A CN 105402014 A CN105402014 A CN 105402014A CN 201510853969 A CN201510853969 A CN 201510853969A CN 105402014 A CN105402014 A CN 105402014A
- Authority
- CN
- China
- Prior art keywords
- gas exhaust
- exhaust manifold
- upper cover
- sheet metal
- cover
- 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
Classifications
-
- 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
- F01N13/141—Double-walled exhaust pipes or housings
-
- 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
- F01N13/148—Multiple layers of insulating material
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a heat insulating device for an engine. The heat insulating device comprises a gas exhaust manifold upper cover, a gas exhaust manifold lower cover, a three-way catalyst upper cover and a three-way catalyst lower cover, wherein both inner and outer sides of the gas exhaust manifold upper cover are made of metal plates; a ceramic fiber paper board is arranged between the metal plates; and the gas exhaust manifold upper cover and the gas exhaust manifold lower cover are movably connected detachably through a connector. The heat insulating device improves heat insulating effect, avoids resonance of a heat insulating cover and the engine, and improves rigidity of the heat insulating cover.
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 motor heat-proof device, 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 upper 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 upper cover is semicircular arc.
In order to prevent ceramic fiber cardboard from dropping, the sheet metal inside gas exhaust manifold upper cover is connected to upper overturning with the sheet metal outside gas exhaust manifold upper cover.
In order to prevent ceramic fiber cardboard from dropping, the downward flange of the sheet metal outside gas exhaust manifold upper cover is connected with the sheet metal inside gas exhaust manifold upper cover.
In order to increase heat insulation intensity, the outer surface of gas exhaust manifold upper 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-proof device, 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 upper cover (1), 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-proof device as claimed in claim 1, is characterized in that: described gas exhaust manifold upper cover (1) is in semicircular arc.
3. motor heat-proof device as claimed in claim 1, is characterized in that: the sheet metal (5) of described gas exhaust manifold upper cover (1) inner side is connected to upper overturning with the sheet metal (5) outside described gas exhaust manifold upper cover (1).
4. motor heat-proof device as claimed in claim 1, is characterized in that: the downward flange of sheet metal (5) in described gas exhaust manifold upper cover (1) outside is connected with the sheet metal (5) of described gas exhaust manifold upper cover (1) inner side.
5. motor heat-proof device as claimed in claim 1 or 2, is characterized in that: the outer surface of described gas exhaust manifold upper cover (1) all arranges stiffening rib.
6. motor heat-proof device as claimed in claim 1, is characterized in that: the thickness of described sheet metal (5) is 0.2mm-0.6mm.
7. motor heat-proof device 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 |
|---|---|---|---|
| CN201510853969.8A CN105402014A (en) | 2015-11-30 | 2015-11-30 | Heat insulating device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853969.8A CN105402014A (en) | 2015-11-30 | 2015-11-30 | Heat insulating device for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402014A true CN105402014A (en) | 2016-03-16 |
Family
ID=55467727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510853969.8A Pending CN105402014A (en) | 2015-11-30 | 2015-11-30 | Heat insulating device for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402014A (en) |
Citations (8)
| 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 |
| 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 |
| CN205154344U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine heat -proof device |
-
2015
- 2015-11-30 CN CN201510853969.8A patent/CN105402014A/en active Pending
Patent Citations (8)
| 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 |
| 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 |
| CN205154344U (en) * | 2015-11-30 | 2016-04-13 | 重庆祥吉机械制造有限公司 | Engine heat -proof device |
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| PB01 | Publication | ||
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Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |