Throttle body with reduced deposit accumulation and enhanced thermal conductivity

Patent metadata

Field	Value
Publication number	US-11946432-B2
Application number	US-202217815796-A
Country	US
Kind code	B2
Filing date	Jul 28, 2022
Priority date	Jul 28, 2022
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

A throttle body for an engine or fuel cell of a vehicle is provided. The throttle body comprises a cylindrical housing comprising a first open end extending to a second open end defining an inner wall having an inner surface. The throttle body further comprises a moveable blade valve movably disposed on the inner wall and arranged to regulate air to the engine during operation of the vehicle. The moveable blade valve has an outer surface. The throttle body further comprises a dual-phase thermal composite coating (TCC) disposed on one of the inner surface of the inner wall and outer surface of the moveable blade valve for enhanced thermal conductivity and reduced deposit accumulation on the inner surface and the outer surface. The dual-phase TCC comprises a first material comprising between 10 wt % and 90 wt %, and a second material comprising between 10 wt % and 90 wt % of the dual-phase TCC. The dual phase TCC has a contact angle of between 100° and 160° and a thermal conductivity of at least 0.3 W/mK.

First claim

What is claimed is:

1. A throttle body for one of an engine and fuel cell of a vehicle, the throttle body comprising:
a cylindrical housing comprising a first open end extending to a second open end defining an inner wall having an inner surface;
a moveable blade valve movably disposed on the inner wall and arranged to regulate air to the engine during operation of the vehicle, the moveable blade valve having an outer surface;
a dual-phase thermal composite coating (TCC) disposed on one of the inner surface of the inner wall and outer surface of the moveable blade valve for enhanced thermal conductivity and reduced deposit accumulation on the inner surface and the outer surface, the dual-phase TCC comprising a first material and a second material, the first material comprising between 10 weight percent (wt %) and 90 wt % and the second material comprising between 10 wt % and 90 wt % of the dual-phase TCC, the dual phase TCC having a contact angle of between 100 degrees (°) and 160° and a thermal conductivity of at least 0.3 W/mK.

2. The throttle body of claim 1 wherein the first material is 90 wt %, the second material is 10 wt %, and the thermal conductivity is between 0.3 W/mK and 1 W/mK.

3. The throttle body of claim 1 wherein the first material is 50 wt %, the second material is 50 wt %, and the thermal conductivity is between 3 W/mK and 5 W/mK.

4. The throttle body of claim 1 wherein the first material is 30 wt %, the second material is 70 wt %, and the thermal conductivity is between 20 W/mK and 30 W/mK.

5. The throttle body of claim 1 wherein the first material is 10 wt %, the second material is 90 wt %, and the thermal conductivity is between 60 W/mK and 100 W/m K.

6. The throttle body of claim 1 wherein the dual TCC has a coefficient of friction of between 0.01 and 0.2.

7. The throttle body of claim 1 wherein the first material comprises one of parylene, polyesters, polyurethane, polyurea, polyarylate, polyethylene, epoxy, polyoxymethylene, polypthaldamide, polyamide, polyphenylene sulfide, polyether ether ketone, polyether ketone, polyimide, polysiloxane, polydimethylsiloxane, poly(methyl methacrylate), methyltrimethoxysilane, and polyflorocarbons.

8. The throttle body of claim 1 wherein the second material comprises one of copper, zinc, aluminum, gold, silver, cobalt, manganese, carbon black, graphene, AL-bronze, aluminum silicates, SiO 2 , CuO, ZnO, TiO 2 , MoS 2 , and Al 2 O 3 .

9. The throttle body of claim 1 wherein the dual-phase TCC has a surface roughness of between 10 Ra and 60 Ra.

10. The throttle body of claim 1 wherein the contact angle is between 110° and 160°.

11. The throttle body of claim 1 wherein the first material is 90 wt %, the second material is 10 wt %, and the thermal conductivity is between 0.3 W/mK and 1 W/mK.

12. The throttle body of claim 1 wherein the first material is 50 wt %, the second material is 50 wt %, and the thermal conductivity is between 3 W/mK and 5 W/mK.

13. A dual-phase thermal composite coating (TCC) for enhanced thermal conductivity and reduced deposit accumulation in a throttle body of an engine of a vehicle, the dual-phase TCC comprising:
a first material comprising one of parylene, polyesters, polyurethane, polyurea, polyarylate, polyethylene, epoxy, polyoxymethylene, polypthaldamide, polyamide, polyphenylene sulfide, polyether ether ketone, polyether ketone, polyimide, polysiloxane, polydimethylsiloxane, poly(methyl methacrylate), methyltrimethoxysilane, and polyflorocarbons, the first material comprising between 10 weight percent (wt %) and 90 wt % of the dual-phase TCC;
a second material comprising one of copper, zinc, aluminum, gold, silver, cobalt, manganese, carbon black, graphene, AL-bronze, aluminum silicates, SiO 2 , CuO, ZnO, TiO 2 , MoS 2 , and Al 2 O 3 , the second material comprising between 10 wt % and 90 wt % of the dual-phase TCC,
wherein the dual phase TCC has a contact angle of between 100 degrees (°) and 160° and a thermal conductivity of at least 0.3 W/mK.

14. The dual phase TCC of claim 13 wherein the first material is 90 wt %, the second material is 10 wt %, and the thermal conductivity is between W/mK and 1 W/mK.

15. The dual phase TCC of claim 13 wherein the first material is 50 wt %, the second material is 50 wt %, and the thermal conductivity is between 3 W/mK and 5 W/mK.

16. The dual phase TCC of claim 13 wherein the first material is 30 wt %, the second material is 70 wt %, and the thermal conductivity is between W/mK and 30 W/mK.

17. The dual phase TCC of claim 13 wherein the first material is 10 wt %, the second material is 90 wt %, and the thermal conductivity is between W/mK and 100 W/mK.

18. The dual phase TCC of claim 13 wherein the dual TCC has a coefficient of friction of between 0.01 and 0.2.

19. The dual phase TCC of claim 13 further comprising a surface roughness of between 10 Ra and 60 Ra.

20. A throttle body for an engine of a vehicle, the throttle body comprising:
a cylindrical housing comprising a first open end extending to a second open end defining an inner wall having an inner surface;
a moveable blade valve movably disposed on the inner wall and arranged to regulate air to the engine during operation of the vehicle, the moveable blade valve having an outer surface;
a dual-phase thermal composite coating (TCC) disposed on one of the inner surface of the inner wall and outer surface of the moveable blade valve for enhanced thermal conductivity reduced deposit accumulation on the inner surface and the outer surface, the dual-phase TCC comprising a first material and a second material, the first material comprising one of parylene, polyesters, polyurethane, polyurea, polyarylate, polyethylene, epoxy, polyoxymethylene, polypthaldamide, polyamide, polyphenylene sulfide, polyether ether ketone, polyether ketone, polyimide, polysiloxane, polydimethylsiloxane, poly(methyl methacrylate), methyltrimethoxysilane, and polyflorocarbons, the second material comprising one of copper, zinc, aluminum, gold, silver, cobalt, manganese, carbon black, graphene, AL-bronze, aluminum silicates, SiO 2 , CuO, ZnO, TiO 2 , MoS 2 , and Al 2 O 3 , the first material comprising between 10 weight percent (wt %) and 90 wt % and the second material comprising between wt % and 90 wt % of the dual-phase TCC, the dual phase TCC having a contact angle of between 100 degrees (°) and 160° and a thermal conductivity of at least 0.3 W/mK.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Pack Seongchan
• Sorrell Dean G

Classifications

• F02D9/1075 Primary

  Materials, e.g. composites · CPC title

• F02B77/04 Primary

  Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines · CPC title

• F02D9/1005 Primary

  Details of the flap · CPC title

• F02D9/1035

  Details of the valve housing · CPC title

• C09D201/00

  Coating compositions based on unspecified macromolecular compounds · CPC title