Fluid heating component, and fluid heating component complex

Patent metadata

Field	Value
Publication number	US-11310873-B2
Application number	US-201916296734-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 20, 2018
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

A fluid heating component including: a pillar-shaped member made of ceramics and formed with through channels through which a fluid passes, and a conductive coating layer disposed on at least a part of a circumferential surface of the pillar-shaped member, wherein the conductive coating layer is disposed on coats the whole circumference of a cut surface of the pillar-shaped member in a state where the conducive coating layer is electrically connected, in the cut surface of the pillar-shaped member which is perpendicular to a passing direction of the fluid.

First claim

What is claimed is:

1. A fluid heating component comprising:
a pillar-shaped member made of ceramics and formed with through channels through which a fluid passes, and
a separate conductive coating layer disposed on at least a part of a circumferential surface of the pillar-shaped member,
wherein the conductive coating layer is disposed on the whole circumference of a cut surface of the pillar-shaped member in a state where the conductive coating layer has an uninterrupted electrical connection, in the cut surface of the pillar-shaped member which is perpendicular to a passing direction of the fluid.

2. The fluid heating component according to claim 1 , wherein the pillar-shaped member is a honeycomb structure comprising partition walls which define a plurality of cells extending from one end face to the other end face and formed as the through channels.

3. The fluid heating component according to claim 1 , wherein the pillar-shaped member is made of dense ceramics, and
a porosity of the pillar-shaped member is in a range of 0.1% to 10%.

4. The fluid heating component according to claim 1 , wherein the pillar-shaped member is made of ceramics having a thermal conductivity of from 50 W/m·K to 300 W/m·K.

5. The fluid heating component according to claim 1 , wherein the pillar-shaped member is made of ceramics containing, as a main component, at least one selected from the group consisting of silicon carbide, silicon nitride, aluminum nitride and magnesium oxide.

6. The fluid heating component according to claim 1 , wherein the pillar-shaped member is made of ceramic containing silicon carbide as a main component, and an electric resistivity of the pillar-shaped member is from 0.01 Ωcm to 10 Ωcm.

7. The fluid heating component according to claim 1 , wherein the pillar-shaped member is made of ceramic containing, as a main component, cordierite having a thermal expansion coefficient from 0.1 ppm/K to 2 ppm/K.

8. The fluid heating component according to claim 1 , wherein the conductive coating layer possesses a layer structure, and comprises:
an electroless plating layer which is in contact with the surface of the pillar-shaped member, and
at least one induction heating layer laminated on the electroless plating layer.

9. The fluid heating component according to claim 1 , wherein the conductive coating layer has a thickness of from 0.1 μm to 500 μm.

10. A fluid heating component complex which is formed by using the fluid heating component according to claim 1 , and
which is monolithically constructed by using a plurality of prismatic columnar fluid heating components, or which is monolithically constructed by using at least one of the prismatic columnar fluid heating components, and one or a plurality of prismatic columnar pillar-shaped members made of ceramics and formed with through channels through which a fluid passes.

Assignees

• Ngk Insulators Ltd

Inventors

• Takahashi Hironori
• Ishida Hiroki

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• H05B6/108 Primary

  for heating a fluid · CPC title

• B28B2003/203

  for multi-channelled structures, e.g. honeycomb structures · CPC title

• C04B41/88

  Metals · CPC title

• C04B41/5127

  Cu, e.g. Cu-CuO eutectic · CPC title