US 11,946,432 B2
Throttle body with reduced deposit accumulation and enhanced thermal conductivity
Seongchan Pack, West Bloomfield Township, MI (US); and Dean G. Sorrell, Vinita, OK (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Jul. 28, 2022, as Appl. No. 17/815,796.
Prior Publication US 2024/0035421 A1, Feb. 1, 2024
Int. Cl. F02D 9/10 (2006.01); F02B 77/04 (2006.01)
CPC F02D 9/1075 (2013.01) [F02B 77/04 (2013.01); F02D 9/1005 (2013.01)] 20 Claims
OG exemplary drawing
 
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.