Honeycomb structure

Abstract

An objective of the invention is to provide a honeycomb structure which can restain pressure loss, increase contact possibility of waste gas and a catalyst, and develop good waste gas purification performance. The honeycomb structure includes a honeycomb substrate having porous partition walls defining a plurality of cells extending from one end face to the other end face, and one-side plugging portions configured to plug the cells in the one end face in accordance with a predetermined arrangement standard, and the partition walls include catalyst impregnated partition walls formed in a first region of a predetermined length extending from the one end face in which the one-side plugging portions are provided, along an axial direction of the honeycomb substrate and formed by impregnating a catalyst into partition wall inner portions, and catalyst layer partition walls formed in a second region of a predetermined length extending from the other end face along the axial direction of the honeycomb substrate and having catalyst layers which coat partition wall surfaces with the catalyst in the form of layers.

Description

technical field [0001] The present invention relates to a honeycomb structure. More specifically, it relates to a honeycomb structure that is used in an exhaust gas purification device for purifying exhaust gas from a gasoline engine and that can prevent a reduction in the purification performance of the exhaust gas. Background technique [0002] In recent years, in response to various demands such as resource saving and energy saving, the development of engines that suppress the consumption of fossil fuels such as gasoline, further suppress the generation of exhaust gas, and exhibit low fuel consumption performance has been promoted. In particular, among gasoline engines generally used as a driving source for automobiles, in order to meet the above-mentioned demand for lower fuel consumption, the development of direct-injection gasoline engine technology in which gasoline is directly injected into cylinders and driven has been advanced. [0003] Direct-injection gasoline e...

AI Technical Summary

Problems solved by technology

Here, if the above-mentioned trapping filter is installed on the gasoline engine, there is a possibility that the pressure loss will increase and the running performance will be affected.

Images