Unlock instant, AI-driven research and patent intelligence for your innovation.

Muffler perform and its forming method

一种预型件、消音器的技术，应用在消音装置、发动机元件、机器/发动机等方向，能够解决大投资能量、增加预型件循环时间等问题

Inactive Publication Date: 2012-01-11
OCV INTELLECTUAL CAPITAL LLC
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heating process requires a considerable investment and a considerable amount of energy, which increases the cycle time required to manufacture the preform

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Muffler perform and its forming method
  • Muffler perform and its forming method
  • Muffler perform and its forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Compared to known preforms for mufflers, the preforms according to the invention are produced with adhesives which cure at low temperatures in a shorter time. This can significantly reduce the capital and energy costs and cycle times required to manufacture the preforms.

[0016] This preform can be used to manufacture any type of muffler. As we all know, a muffler is a component or device that acts to damp or attenuate acoustic energy (sound). They often include an outer shell or enclosure and a preform mounted within the shell / enclosure. Silencers are often used as part of a larger system or installation. Some systems or devices that may include mufflers are automotive exhaust systems, diesel and gas engines, compressors, high pressure gas release systems, blowers, vacuum pumps, ventilation / exhaust, and gas turbines.

[0017] As used herein, "low temperature curing adhesive" means an adhesive that substantially fully cures (hardens to form a stable material) at or ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
cure temperatureaaaaaaaaaa
Login to View More

Abstract

In a method of forming a silencer preform from fibers of a fiberizable material, the fibers are fed into a mold, and a low temperature cure binder is applied to the fibers. The binder is cured at a low temperature to bond together the fibers, thereby forming a preform having generally the shape of the mold. The preform is removed from the mold. The preform is structured for insertion into a silencer. A silencer preform includes fibers of a fiberizable material and a low temperature cure binder bonding together the fibers.

Description

technical field [0001] The present invention relates generally to fibrous preforms, and more particularly to preforms for use in mufflers such as mufflers or other automotive exhaust components. Background technique [0002] Typically, sound absorbing materials are included in automotive exhaust components to dampen or attenuate the sound energy contained in engine exhaust gases as they travel from the engine through the exhaust system to the atmosphere. Fiberglass preforms are often used as sound absorbing material. [0003] Preforms for automotive exhaust components are often formed by texturizing a continuous glass fiber bundle (separating the bundle into filaments), feeding the fiber into a mold, and when texturizing it Manufactured by applying a binder to the fibers either at the time or after they are in the mold. The binder cures at elevated temperatures to bond the fibers together, thereby forming a somewhat rigid preform in the shape of the mold. The temperature ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/00D04H1/64F01N1/24
CPCD04H1/005B29B11/16D04H1/641D04H1/643B29K2995/0002F01N1/24D04H1/64D04H1/74D04H1/587
Inventor N·T·胡夫
Owner OCV INTELLECTUAL CAPITAL LLC