A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HONEYCOMB STRUCTURE, ELECTRIC HEATING CARRIER, AND EXHAUST GAS CLEANING APPARATUS
To provide a honeycomb structure capable of relaxing a flow rate difference of exhaust gas between center and outer peripheral parts.SOLUTION: A columnar honeycomb structure 110 comprises: a conductive columnar honeycomb structure part; and a pair of electrode layers 112a, 112b. In a vertical cross section where cells 115 extend, when a coordinate axis is arranged in a radial direction, a coordinate value of a centroid O is 0, and a coordinate value of an outer surface of an outer peripheral wall is 1.0R, an average length R1 of the honeycomb structure part in a direction where cells extend from a first end face 116 to a second end face in a range of 0 to 0.7 R (center), and an average length R2 of the honeycomb structure part in a range of 0.7 R to 1.0 R (outer peripheral part) satisfy 0.5≤R2/R1<1.0. The average length R1 has a length of 99% or greater of a maximum value of the length of the honeycomb structure part where the cells extend from the first end face to the second end face in the center part, and the cells located on the center and the cells located on the outer peripheral part form a channel of fluid together.SELECTED DRAWING: Figure 1
【課題】中央部と外周部における排ガスの流量差を緩和することのできるハニカム構造体を提供する。【解決手段】導電性の柱状ハニカム構造部と一対の電極層１１２ａ、１１２ｂとを備える柱状ハニカム構造体１１０であって、セル１１５の延びる方向の垂直断面において、径方向に座標軸を取り、重心Ｏの座標値を０、外周壁の外表面の座標値を１．０Ｒとしたとき、０～０．７Ｒ（中央部）における第一端面１１６から第二端面までのセルの延びる方向のハニカム構造部の平均長さＲ１と、０．７Ｒ～１．０Ｒ（外周部）におけるハニカム構造部の平均長さＲ２とが、０．５≦Ｒ２／Ｒ１＜１．０を満たし、平均長さＲ１は、前記中央部における第一端面から第二端面までのセルの延びる方向のハニカム構造部の長さの最大値の９９％以上の長さを有し、中央部に位置する複数のセル及び外周部に位置する複数のセルは共に流体の流路を形成している、柱状ハニカム構造体。【選択図】図１
HONEYCOMB STRUCTURE, ELECTRIC HEATING CARRIER, AND EXHAUST GAS CLEANING APPARATUS
To provide a honeycomb structure capable of relaxing a flow rate difference of exhaust gas between center and outer peripheral parts.SOLUTION: A columnar honeycomb structure 110 comprises: a conductive columnar honeycomb structure part; and a pair of electrode layers 112a, 112b. In a vertical cross section where cells 115 extend, when a coordinate axis is arranged in a radial direction, a coordinate value of a centroid O is 0, and a coordinate value of an outer surface of an outer peripheral wall is 1.0R, an average length R1 of the honeycomb structure part in a direction where cells extend from a first end face 116 to a second end face in a range of 0 to 0.7 R (center), and an average length R2 of the honeycomb structure part in a range of 0.7 R to 1.0 R (outer peripheral part) satisfy 0.5≤R2/R1<1.0. The average length R1 has a length of 99% or greater of a maximum value of the length of the honeycomb structure part where the cells extend from the first end face to the second end face in the center part, and the cells located on the center and the cells located on the outer peripheral part form a channel of fluid together.SELECTED DRAWING: Figure 1
【課題】中央部と外周部における排ガスの流量差を緩和することのできるハニカム構造体を提供する。【解決手段】導電性の柱状ハニカム構造部と一対の電極層１１２ａ、１１２ｂとを備える柱状ハニカム構造体１１０であって、セル１１５の延びる方向の垂直断面において、径方向に座標軸を取り、重心Ｏの座標値を０、外周壁の外表面の座標値を１．０Ｒとしたとき、０～０．７Ｒ（中央部）における第一端面１１６から第二端面までのセルの延びる方向のハニカム構造部の平均長さＲ１と、０．７Ｒ～１．０Ｒ（外周部）におけるハニカム構造部の平均長さＲ２とが、０．５≦Ｒ２／Ｒ１＜１．０を満たし、平均長さＲ１は、前記中央部における第一端面から第二端面までのセルの延びる方向のハニカム構造部の長さの最大値の９９％以上の長さを有し、中央部に位置する複数のセル及び外周部に位置する複数のセルは共に流体の流路を形成している、柱状ハニカム構造体。【選択図】図１
HONEYCOMB STRUCTURE, ELECTRIC HEATING CARRIER, AND EXHAUST GAS CLEANING APPARATUS
ハニカム構造体、電気加熱型担体及び排ガス浄化装置
KAGAMI KAITO (author)
2024-10-10
Patent
Electronic Resource
Japanese
IPC:
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B01D
SEPARATION
,
Trennen
/
C04B
Kalk
,
LIME
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
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