Feed pipe for conveying automobile gas

A feeding pipe and gas technology, which is applied in the direction of charging systems, combustion engines, internal combustion piston engines, etc., can solve the problems of large engine noise, loud noise, and high pressure of feeding pipes, etc.

Inactive Publication Date: 2018-03-23
SICHUAN SENJIE GAS EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the existing gas injection rail is sprayed and transported, the feed pipe used by it produces a lot of noise due to the high pressure, causing the entire engine to generate a lot of noise during operation

Method used

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  • Feed pipe for conveying automobile gas
  • Feed pipe for conveying automobile gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , figure 2 As shown, a feed pipe for automobile gas transportation includes a pipe main body 1 and a pipe main body 1 . The inner side of the pipe is covered with sound-absorbing cotton 2 and sound-absorbing material layer 3 , and the sound-absorbing cotton 2 and sound-absorbing material layer 3 are alternately distributed on the inner side of the pipe main body 1 .

[0024] Preferably, the sound-absorbing cotton 2 is glass fiber sound-absorbing cotton used in the gas pipeline.

[0025] Preferably, the sound-absorbing cotton 2 is prepared from quartz sand, limestone and dolomite as raw materials.

[0026] Preferably, the sound-absorbing material layer 3 is provided with micropores 311, mesopores 312, and macropores 313, and the micropores 311, mesopores 312, and macropores 313 form a group of porous structures, and the micropores 311, mesopores The spacing between the holes 312 and the large holes 313 is equal, and there are multiple groups of hole-...

Embodiment 2

[0029] This embodiment is further preferred on the basis of the embodiment, the pore diameter of the micropore 311 is 1 nm, the pore diameter of the mesopore 312 is 3 nm, and the pore diameter of the macropore 313 is 55 nm.

Embodiment 3

[0031] This embodiment is further preferred on the basis of the embodiment, the pore diameter of the micropore 311 is 0.5 nm, the pore diameter of the mesopore 312 is 10 nm, and the pore diameter of the macropore 313 is 100 nm.

[0032] In this embodiment, the sound-absorbing structure of the feed pipe is optimized, wherein the sound-absorbing cotton is a kind of man-made inorganic fiber prepared from quartz sand, limestone, and dolomite as raw materials. In the melted state, it is blown by external force to form floc fine fibers, and the fibers intersect three-dimensionally and intertwine with each other, showing many small gaps.

[0033] In Examples 1-3, through the setting of macropores, mesopores, and micropores in the sound-absorbing material layer, when the sound of gas transmission enters the surface of the component material, part of the sound energy is reflected, part of it penetrates the material, and part of the component material When the vibration or sound propaga...

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PUM

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Abstract

The invention discloses a feed pipe for conveying automobile gas. The feed pipe comprises a pipeline body 1, wherein the inner side of the pipeline body 1 is coated with sound-absorbing cotton 2 and asound-absorbing material layer 3; the sound-absorbing cotton 2 and the sound-absorbing material layer 3 are alternately distributed on the inner side of the pipeline body 1; the sound-absorbing material layer comprises micropores, macropores and mesopores, of which the pore sizes are adjusted; and opening holes which are through are formed in gaps among the micropores, the macropores and the mespores. Therefore, a space is formed in the gaps among the the micropores, the macropores and the mespores, under the actions of friction and viscous resistance of air molecules, tiny fibers vibrate mechanically, sound energy is converted into heat energy, and accordingly, a sound-absorbing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of gas, in particular to a feed pipe for automobile gas transportation. Background technique [0002] With the rapid growth of car ownership, the problems of environmental pollution and shortage of oil resources are becoming more and more serious. To this end, countries around the world are actively developing new energy vehicles. Among them, natural gas vehicles are being popularized and promoted around the world due to their three major characteristics: low emissions, suppression of greenhouse effect, and independence from oil. In our country, many urban buses and taxis have a large number of fuel vehicles that have switched or are switching to compressed natural gas (CNG) or liquefied petroleum gas (LPG). With the rapid increase in the number of gas vehicles in my country, it is imperative to develop gas heaters that match it. [0003] In the electronic control injection system of the gas fuel engine, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02
CPCF02M21/0218F02M21/0248Y02T10/30
Inventor 何松龙
Owner SICHUAN SENJIE GAS EQUIP CO LTD
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