JPH0161416U - - Google Patents

Description

[Brief explanation of drawings]

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 FIG. 8 is a front view of a preheating heater showing a conventional example, and FIG. 8 is a front view of a preheating heater showing a second embodiment of the present invention. In the figure, 1... Heater for preheating, 5a... Electric resistor, 10... Honeycomb filter.

Claims (1)

[Claims for Utility Model Registration] 1. An exhaust passage for leading exhaust gas from an internal combustion engine to the outside, and an exhaust passage provided in the exhaust passage so that the exhaust gas can pass therethrough, to remove unburned particles in the exhaust gas. A filter made of fire-resistant ceramic to capture the air, and a preheating heater installed close to the filter on the upstream side of the exhaust passage, the heater being connected approximately from the outside to the center by an electric resistance wire. It is formed from a plurality of electrical resistors which are bent into a U-shape and whose tip portions forming an arc are bent at a substantially right angle in a predetermined direction, and the electrical resistors are arranged at substantially equal angular intervals in the same plane, and An exhaust gas reburning device for an internal combustion engine or the like, characterized in that it is arranged so as to be oriented in a direction substantially perpendicular to the flow of exhaust gas, and is energized as appropriate during operation. 2. The electrical resistance wire is made of a sheathed heater,
2. The exhaust gas reburning device for an internal combustion engine or the like according to claim 1, wherein three or more are provided at equal angular intervals on the ring-shaped frame. 3. An exhaust path for leading exhaust gas from the internal combustion engine to the outside; and a fire-resistant ceramic filter provided in the exhaust path so that the exhaust gas can pass therethrough, and that captures unburned particles in the exhaust gas. and a preheating heater installed close to the filter on the upstream side of the exhaust passage, the heater being bent into a substantially U-shape from the outside toward the center by an electric resistance wire, It is formed from a pair of electrical resistors whose tip portions forming an arc are bent at approximately 45 degrees in a predetermined direction, and the electrical resistors are opposed in the same plane and are substantially perpendicular to the flow of the exhaust gas. An exhaust gas re-combustion device for an internal combustion engine, etc., characterized in that it is arranged so as to be oriented in a direction, and is energized as appropriate during operation.