# US 11,310,873 B2 · Fluid heating component, and fluid heating component complex

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,310,873 B2
- Document ID: US11310873B2
- Status: Granted
- Kind: B2
- Application number: 16/296,734
- Filed: 2019-03-08
- Published: 2019-09-26
- Granted: 2022-04-19
- Earliest claimed: 2018-03-20
- Assignees: NGK Insulators, Ltd.
- Applicants: NGK Insulators, Ltd.
- Inventors: Hironori Takahashi; Hiroki Ishida
- Web page: https://patentgrep.com/patent/US11310873B2

## CPC

- H05B 6/108: {for heating a fluid}
- B28B 11/006: {Making hollow articles or partly closed articles}
- C04B 41/009: {characterised by the material treated}
- C04B 41/5127: {Cu, e.g. Cu-CuO eutectic}
- C04B 41/5133: {with a composition mainly composed of one or more of the refractory metals}
- C04B 41/5144: {with a composition mainly composed of one or more of the metals of the iron group}
- C04B 41/88: Metals
- H05B 6/107: {for continuous movement of material}
- B28B 3/20: wherein the material is extruded {(extrusion moulding of plastics B29C48/00)}
- B28B 2003/203: {for multi-channelled structures, e.g. honeycomb structures}
- C04B 2111/00793: {as filters or diaphragms}
- C04B 2111/0081: {as catalysts or catalyst carriers}
- Y02T 10/12: Improving ICE efficiencies
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- B28B: SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B)
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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%.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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.

### Claim 6 (depends on 1)

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.

### Claim 7 (depends on 1)

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.

### Claim 8 (depends on 1)

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.

### Claim 9 (depends on 1)

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

### Claim 10 (depends on 1)

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.