1. An exhaust emission purifying apparatus for an internal combustion engine comprising:
a reduction catalyst for accelerating the reductive purification of nitrogen oxides in the exhaust gas, the reduction catalyst being disposed in an exhaust passage of the internal combustion engine; and
an injection nozzle for adding a reducing agent for the nitrogen oxides to the exhaust gas, the injection nozzle being disposed on the upstream of the reduction catalyst in the exhaust passage,
wherein the injection nozzle is arranged in an insertion hole which is formed on a pipe wall bottom portion of the exhaust passage to extend in a flow direction of the exhaust gas, and is fixed in a state of standing upright from the pipe wall bottom portion by means of a flange configured to be detachable and formed to extend in the axial direction of the exhaust passage so as to adopt the shape of the insertion hole,
wherein the injection nozzle is arranged on an end portion on the upstream side relative to the flow of the exhaust gas by means of a flange arranged in the insertion hole and the flange being formed to extend in the axial direction of the exhaust passage, and
wherein the reducing agent is injected by the injection nozzle upward in a vertical direction.
2. The apparatus according to claim 1, further comprising:
a storage tank for storing the reducing agent, wherein the storage tank includes a first tank and a second tank, the first tank having a relatively large volume, and the second tank having a volume smaller than that of the first tank and being arranged between the first tank and the injection nozzle;
a first heater for heating the reducing agent in the first tank; and
a second heater for heating the reducing agent in the second tank.
3. The apparatus according to claim 2, wherein the first heater is configured to use the internal combustion engine as a heat source thereof, and also, the second heater is an electric heater.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A three-dimensional image display device comprising:
at least one transmissive light-emitting display panel; and
a second light-emitting display panel located behind said transmissive light-emitting display panel,
wherein said transmissive light-emitting display panel includes a plurality of light-emitting portions arranged in two dimensions and a plurality of bus lines each of which is connected to and overlapping with the light-emitting portions so that the light-emitting portions are classified into plural linear groups, and
wherein each of the light-emitting portions includes a light-emitting layer made of an organic compound exhibiting electroluminescence, and
wherein each of the plurality of bus lines has portions overlapping with said light-emitting portion, each of the portions having an area equal to or smaller than 5% of an area of each of the light-emitting portions.
2. The three-dimensional image display device according to claim 1, wherein
the light-emitting portions of said transmissive light-emitting display panel are located in a periodic pattern; and
said second light-emitting display panel has light-emitting portions located in the periodic pattern.
3. The three-dimensional image display device according to claim 2, wherein the periodic pattern has a matrix layout.
4. The three-dimensional image display device according to claim 1, wherein
the light-emitting portion of said transmissive light-emitting display panel includes
at least one organic compound material layer made of an organic compound in contact with the light-emitting layer and supplying holes or electrons to the light-emitting layer, and
a pair of transparent electrodes sandwiching the light-emitting layer and the organic compound material layer therebetween; and
one of the transparent electrodes is connected to the bus line.
5. The three-dimensional image display device according to claim 4, wherein the one transparent electrode connected to the bus line is a cathode.
6. The three-dimensional image display device according to claim 4, wherein the bus line is buried in the one transparent electrode.
7. The three dimensional image display device according to claim 4, wherein the bus line is dislocated so as not to overlap the light-emitting layer and buried in the one transparent electrode.