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Waterproof board for anti-backflow automobile exhaust pipe device

A technology of automobile exhaust and waterproof board, which is applied in the direction of exhaust device, noise reduction device, application, etc., can solve the problems of backflow into the exhaust pipe, etc., and achieve the effect of ensuring quality, ensuring waterproof effect, and high production efficiency

Inactive Publication Date: 2016-12-21
WUHU EVERSHINE AUTOMOTIVE COMPONENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an anti-backflow automobile exhaust pipe device to solve the problem that the exhaust pipe at a lower position can easily cause water to flow back into the exhaust pipe

Method used

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  • Waterproof board for anti-backflow automobile exhaust pipe device
  • Waterproof board for anti-backflow automobile exhaust pipe device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 2 As shown, the present invention provides an anti-backflow automobile exhaust pipe device, comprising an air intake pipe 1, a lumen 2 communicated with the air intake pipe 1, and an outlet pipe 3 communicated with the lumen 2, and automobile exhaust enters the lumen from the air intake pipe 1 2 and discharged from the outlet pipe 3.

[0025] Specifically, a pneumatic valve 6 is provided on the wall of the lumen 2; a waterproof plate 4 that is oppositely arranged and connected to the air outlet pipe 3 is provided inside the outlet pipe 3; a stopper is provided on the side of the waterproof plate 4 near the lumen 2 5. The diameters of the air intake pipe 1 and the air outlet pipe 3 are equal. The diameter of the lumen 2 is greater than the diameters of the inlet pipe 1 and the outlet pipe 3 .

[0026] When encountering rainy weather or passing through a waterlogged road section, when there is accumulated water flowing into the air outlet pi...

Embodiment 2

[0029] Waterproof board for anti-backflow automobile exhaust pipe device, made of ethylene-vinyl acetate copolymer 30%, polyvinyl chloride 30%, polystyrene 20%, polyurethane 5%, graphite 5%, phenolic resin 5%, β-sitosterol 1% and antioxidant 4%.

Embodiment 3

[0031] A method for processing a waterproof plate for an anti-backflow automobile exhaust pipe device comprises the following steps:

[0032] (1) batching: take raw material by weight percentage of embodiment 2;

[0033] (2) Mixing: Stir and mix the raw materials, the mixing temperature is 90°C, and the stirring time is 5 minutes;

[0034] (3) Blending extrusion, the temperature of the screw rod of the extruder in the feeding section, the melting section, and the metering section is respectively 120°C, 180°C, and 160°C.

[0035] (4) Forming: The extruded material is calendered and formed with a three-roll calender, and the temperatures of the three rolls are 50°C, 60°C, and 70°C respectively;

[0036] (5) Air cooling to obtain finished products.

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PUM

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Abstract

The invention provides a waterproof board for an anti-backflow automobile exhaust pipe device. The waterproof board comprises 30% of ethylene-vinyl acetate copolymer, 30% of polyvinyl chloride, 20% of polystyrene, 5% of polyurethane, 5% of graphite, 5% of phenolic resin, 1% of beta-sitosterol and 4% of antioxidant. The waterproof board for the anti-backflow automobile exhaust pipe device has the characteristics of being quick, effective, capable of saving energy, environmentally friendly and the like, and therefore the waterproof effect and quality of the waterproof board are guaranteed.

Description

technical field [0001] The invention relates to the technical field of the automobile industry, in particular to a waterproof plate for an anti-backflow automobile exhaust pipe device. Background technique [0002] The automobile exhaust pipe is to eliminate the exhaust gas after the engine is burned. In use, since the usual automobile exhaust pipe is installed at the bottom of the car, the exhaust pipe at a lower position should Pipes can easily cause water to flow back into the exhaust pipe, which can easily cause engine damage. Also do not have effective device to solve the problem of anti-backflow of automobile at present. Therefore, be necessary to provide a kind of anti-backflow automobile exhaust pipe device, to solve the above problems. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an anti-backflow automobile exhaust pipe device to solve the problem that the lower exhaust pipe easily causes water to f...

Claims

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Application Information

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IPC IPC(8): F01N13/08F01N13/16C08L23/08C08L27/06C08L25/06C08L75/04C08L61/06C08K13/02C08K3/04B29D7/00
CPCF01N13/085B29D7/00C08L23/0853C08L27/06C08L2205/035F01N13/16C08L25/06C08L75/04C08L61/06C08K13/02C08K3/04
Inventor 刘华
Owner WUHU EVERSHINE AUTOMOTIVE COMPONENT