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Exhaust system with differential pressure sensor

A technology of differential pressure sensor and exhaust system, applied in the direction of exhaust treatment, charging system, exhaust device, etc., can solve the problems of cost increase, pollution of differential pressure sensor 30, difficulty in accurately measuring pressure, etc., and achieve improved production Efficiency, ease of operation, and increased freedom

Active Publication Date: 2018-04-27
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the middle position of the pair of hoses 31 and 33 is in the downward bent state A2, condensed water stays in the bent portion 41, making it difficult to measure the pressure accurately and the differential pressure sensor 30 may be contaminated.
[0012] In this manner, in order to prevent contamination of the conventional differential pressure sensor 30 or thermal damage in the conventional differential pressure sensor 30, there may be restrictions on the arrangement of the differential pressure sensor, and the pair of hoses 31 and 33 should be installed in The front end and back end of DPF20, so there is a problem of cost increase

Method used

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  • Exhaust system with differential pressure sensor
  • Exhaust system with differential pressure sensor
  • Exhaust system with differential pressure sensor

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Embodiment Construction

[0033] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0034] Exemplary embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art would realize, the described embodiments may be modified in various di...

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Abstract

An exhaust system having a differential pressure sensor may include an intake pipe that houses fresh air from the outside to supply the fresh air to a turbocharger; an exhaust pipe that supplies an EGR gas, having passed through a Diesel Particulate Filter (DPF) to upstream of the turbocharger to mix with the fresh air; and a differential pressure sensor that measures a pressure difference betweenthe front end portion and the rear end portion of the DPF, wherein the differential pressure sensor is directly mounted in the exhaust pipe that is disposed at the rear end portion of the DPF.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2016-0136735 filed on October 20, 2016, the entire contents of which are incorporated herein for all purposes by such reference. technical field [0003] The invention relates to an exhaust system with a differential pressure sensor. More particularly, the present invention relates to an exhaust system having a differential pressure sensor that measures the pressure difference before and after treatment of an exhaust gas aftertreatment device. Background technique [0004] All countries in the world (including Europe) have implemented environmental protection policies related to exhaust gas. In response to various regulations established under this environmental protection policy, in a vehicle having a diesel engine, a diesel particulate filter (DPF) for reducing exhaust gas is installed. The DPF collects soot substances in exhaust gas, and when a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N11/00
CPCF01N11/002F01N2560/08F01N3/021F01N13/008F01N2900/1406Y02T10/12Y02T10/40F01N3/023F02M26/30F01N13/08F01N2550/04
Inventor 韩尚凤
Owner HYUNDAI MOTOR CO LTD