公开(公告)号：KR1020100064912A

公开(公告)日：2010-06-15

申请号：KR1020080123563

申请日：2008-12-05

Applicant: 현대자동차주식회사

Inventor： 박지원

IPC: F01N9/00 ,  F02D43/02

CPC classification number: Y02T10/47 ,  F01N9/00 ,  F01N2560/025 ,  F01N2570/14 ,  F01N2610/1453

Abstract: PURPOSE: A post processing apparatus of a diesel vehicle and a secondary injection control method thereof are provided to secure the optimum NOx purification rate while preventing the slip of a reducing agent by controlling the concentration of the reducing agent according to the oxygen concentration of exhaust gas. CONSTITUTION: A secondary injection control method for a post processing apparatus of a diesel vehicle comprises the steps of: determining the need of DeNox mode for NOx absorbed in an LNT(Lean NOx Trap)(S102), measuring the oxygen concentration of exhaust gas through an oxygen sensor(S103), determining the concentration of a reducing agent for DeNOx according to the oxygen concentration(S106), and generating a reducing agent with the determined concentration(S107).

Abstract translation: 目的：提供一种柴油车辆的后处理装置及其二次喷射控制方法，以通过根据排气的氧浓度控制还原剂的浓度来防止还原剂的滑动，确保最佳的NOx净化率 。 构成：用于柴油车辆的后处理装置的二次喷射控制方法包括以下步骤：确定对于在LNT（精益NOx捕集器）中吸收的NOx的DeNox模式的需要（S102），测量排气的氧浓度通过 氧传感器（S103），根据氧浓度测定DeNOx的还原剂的浓度（S106），生成浓度下降的还原剂（S107）。

公开(公告)号：KR1020100061152A

公开(公告)日：2010-06-07

申请号：KR1020080120052

申请日：2008-11-28

Applicant: 현대자동차주식회사

Inventor： 박지원

IPC: B01J21/04 ,  B01J23/42 ,  B01J29/00 ,  B01J23/44

CPC classification number: B01J21/04 ,  B01D53/9413 ,  B01J23/42 ,  B01J23/44 ,  B01J37/0225

Abstract: PURPOSE: A diesel fuel cracking catalyst and a NOx storage and reduction catalyst including the same are provided to improve purification efficiency of nitric oxide by performing reaction of a reducing agent at a low temperature, and to improve purification efficiency of the nitric oxide. CONSTITUTION: A diesel fuel cracking catalyst(42) includes a nitride oxidation layer(424) and an alcohol group grown layer(426). The nitride oxidation layer adsorbs a part of the oxidized nitrogen dioxide, and to oxidize nitrogen monoxide included in exhaust gas into nitrogen dioxide. The diesel fuel cracking catalyst decomposes a chain loop of a carbon element consisting of the fuel.

Abstract translation: 目的：提供柴油燃料裂解催化剂和包含该柴油燃料裂化催化剂的NOx还原催化剂，以通过在低温下进行还原剂的反应来提高一氧化氮的净化效率，并提高一氧化氮的净化效率。 构成：柴油燃料裂解催化剂（42）包括氮化物氧化层（424）和醇族生长层（426）。 氮化物氧化层吸附一部分氧化二氧化氮，并将废气中包含的一氧化氮氧化成二氧化氮。 柴油燃料裂化催化剂分解由燃料组成的碳元素的链环。