JPS646314U

JPS646314U -

Info

Publication number: JPS646314U
Application number: JP10031487U
Authority: JP
Priority date: 1987-06-30
Filing date: 1987-06-30
Publication date: 1989-01-13

Description

[Brief explanation of the drawing]

第１図ないし第５図は本考案の一実施例を示し
、第１図は予熱用のヒータの正面図、第２図はヒ
ータとハニカムフイルタとの分解斜視図、第３図
は自動車の部分的破断正面図、第４図は要部の縦
断面図、第５図は経過時間に対する温度分布状態
を示すグラフ、第６図は従来における経過時間に
対する温度分布状態を示すグラフ、第７図は従来
の第１図相当図である。図中１…予熱用のヒータ、１ａ…電気抵抗線
、５…デイーゼルエンジン、６…排気マニホール
ド、８…排気管、１０…ハニカムフイルタ。 Figures 1 to 5 show an embodiment of the present invention; Figure 1 is a front view of a preheating heater, Figure 2 is an exploded perspective view of the heater and honeycomb filter, and Figure 3 is a portion of an automobile. Fig. 4 is a longitudinal sectional view of the main part, Fig. 5 is a graph showing the temperature distribution state with respect to elapsed time, Fig. 6 is a graph showing the temperature distribution state with respect to elapsed time in the conventional method, and Fig. 7 is This is a diagram corresponding to the conventional figure 1. In the figure: 1... Heater for preheating, 1a... Electric resistance wire, 5... Diesel engine, 6... Exhaust manifold, 8... Exhaust pipe, 10... Honeycomb filter.

Claims

[Scope of Claim for Utility Model Registration] (1) An exhaust path for leading exhaust gas from an internal combustion engine to the outside; a filter made of refractory ceramic that captures unburned particles; and a filter for preheating that is installed in the exhaust passage in close proximity to the filter on the upstream side of the exhaust gas and sends the exhaust gas through the filter. and a heater, the heater is formed in a spiral shape located in substantially the same plane by electric resistance wire, is arranged so as to be oriented in a direction substantially perpendicular to the flow of the exhaust gas, and is adjusted as appropriate during operation. An exhaust gas re-combustion device for an internal combustion engine, etc., characterized in that it is energized. (2) The exhaust gas reburning device for an internal combustion engine or the like as set forth in claim 1, wherein the filter is formed of honeycomb-shaped ceramic. (3) Utility model registration claim 1, characterized in that the preheating heater is a sheathed heater.
Exhaust gas re-combustion devices such as internal combustion engines described in Section 1. (4) The exhaust gas reburning device for an internal combustion engine or the like according to claim 3, wherein the sheathed heater is supported by a ring-shaped frame. (5) The internal combustion engine according to claim 1, wherein at least 3/4 of a single circumferential length of the spiral portion of the preheating heater is secured. Exhaust gas reburning device.