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An exhaust muffler suitable for exhaust heat and electricity recovery

An exhaust muffler and thermoelectric technology, which is applied in the direction of exhaust devices, gas chambers, and mufflers, can solve the problem of the installation position contradiction between the heat collection box and the exhaust muffler, achieve compact structure, reduce back pressure and noise , The effect of thermoelectric power generation exhaust noise

Active Publication Date: 2019-01-22
AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the compact space of the chassis, there is a contradiction between the installation positions of the heat collection box and the exhaust muffler

Method used

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  • An exhaust muffler suitable for exhaust heat and electricity recovery
  • An exhaust muffler suitable for exhaust heat and electricity recovery
  • An exhaust muffler suitable for exhaust heat and electricity recovery

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] see Figure 1~Figure 3 The shown exhaust muffler suitable for exhaust heat and electricity recovery includes a housing 1, the housing 1 has an air inlet and an exhaust port, and the exhaust muffler also includes an air inlet pipe 2 connected to the air inlet, connected to The exhaust pipe 3 at the position of the exhaust port, the airflow flows into the housing 1 from the intake pipe 2 and flows out of the housing 1 from the exhaust pipe 3 .

[0023] One end of the housing 1 gradually narrows from the inside to the outer edge, and the air inlet is located at the smallest end of the housing 1 . A specific embodiment, the housing 1 is in the shape of a cuboid with a constriction at one end, the length extension direction of the housing 1 is the same as the flow direction of the air flow, and the air inlet is loc...

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Abstract

The invention discloses an exhaust silencer suitable for thermoelectric recovery of tail gases. The exhaust silencer comprises a casing with a gas inlet and an exhausting outlet, a gas inlet pipe connected to the gas inlet and an exhausting pipe connected to the exhausting outlet; gas flow flows into the casting through the gas inlet pipe and flows out of the exhausting pipe; one end part of the casing is gradually reduced from the inner part to the outer edge; and the gas inlet is located at a small end position of the casing. The exhaust silencer further comprises a heat collecting baffle which is fixedly arranged in the casing; the inside of the casing is divided into two cavities, namely a heat collecting cavity and a silencing cavity by the heat collecting baffle; the gas inlet communicates with the heat collecting cavity; the exhausting outlet communicates with the silencing cavity; the heat collecting cavity is in a slit shape; in addition, a slit is gradually narrowed along the flowing direction of gas flow; and the heat collecting cavity communicates with the silencing cavity. According to the exhaust silencer disclosed by the invention, the structure is compact, and the occupied chassis space is small; and meanwhile, extra back pressure and noises can be reduced, thereby reducing the influence on performances of an exhausting system, and enabling the exhaust silencer to realize dual effects of temperature differential power generation and elimination of exhaust noises.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an exhaust muffler suitable for exhaust heat and electricity recovery. Background technique [0002] At present, the sustainable development of the automobile industry is facing two major problems: environmental pollution and lack of oil resources. With the increasingly stringent emission regulations of various countries, environmental protection and energy saving have become an important direction for the development of automobile technology in the 21st century. Studies have shown that only about 30% of the fuel energy of traditional automobile engines is used to drive the wheels, and the remaining 70% of the energy is not effectively used, and about 40% of the energy is discharged into the air in the form of exhaust heat, resulting in a huge waste of energy. and serious environmental pollution. If this part of the waste heat is reused, it will effectively reduce the fuel c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N5/02F01N13/00
CPCF01N5/025F01N13/00F01N2490/16Y02T10/12
Inventor 余文杰郑四发
Owner AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG
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