Coating for a throttle body

A fluid flow controller, comprising:

• a seat defining a throat through which fluid flows;
• a valve mounted movably with respect to the seat, the valve moving between first and second configurations with respect to the throat, the first configuration of the valve substantially occluding the throat, and the second configuration of the valve permitting fluid flow through the throat;
• and
• a coating on at least one of the seat and the valve, the coating shedding ice bridges and contaminants extending between the seat and the valve in the first configuration of the valve.

A method of mitigating ice formation extending from a throttle body to a throttle plate in an air intake system of an internal combustion engine including a combustion chamber, the method comprising:

• providing a body and a throttle plate, the body defining a throat through which air flows to the combustion chamber, and the throttle plate being pivotally mounted with respect to the body to control air flow through the throat;
• applying to at least one of the throat and the throttle plate a coating to shed water extending between the throat and the throttle plate;
• and
• removing ice bridges formed and extending between the throat and the throttle plate when the internal combustion engine is shut down by pivoting the throttle plate to remove the ice from the coating.