Radiator support air deflector

Ramseyi

Badlands
Well-Known Member
First Name
Ramsey
Joined
Dec 6, 2021
Threads
7
Messages
47
Reaction score
52
Location
Arlington
Vehicle(s)
2021 Ford Bronco Sport Badlands
Just out of my curiosity is there anyone out here knows how this radiator support air deflector works or is there any videos out there showing how this things work?
Sponsored

 

Jrl

First Edition
Well-Known Member
First Name
Jim
Joined
Dec 23, 2020
Threads
18
Messages
1,415
Reaction score
1,450
Location
Pgh pa
Vehicle(s)
Lincoln and escape and first edition cactus gray
Just out of my curiosity is there anyone out here knows how this radiator support air deflector works or is there any videos out there showing how this things work?
I think it is a temp and speed thing .
 

69cuda340s

Badlands
Well-Known Member
First Name
Bill
Joined
Mar 16, 2021
Threads
11
Messages
2,399
Reaction score
3,491
Location
USA
Website
www.billsgarage.info
Vehicle(s)
"21 BS Badlands, '16 F150 Platinum FX4

Mark S.

Badlands
Well-Known Member
First Name
Mark
Joined
Oct 30, 2021
Threads
119
Messages
6,731
Reaction score
13,125
Location
St. Jacob, IL
Vehicle(s)
2021 Badlands | 2020 Escape
Just out of my curiosity is there anyone out here knows how this radiator support air deflector works or is there any videos out there showing how this things work?
Here's a drawing of the radiator assembly parts for the Bronco Sport. I believe what you are referring to is sometimes called active grill shutters. They open or close depending on engine temperature.

Power generation and heat are directly related; lower power output means lower heat output. The engine rejects heat with the radiator. The more air you move around and/or through the radiator the more heat is carried away. The horsepower required to maintain highway speed is relatively low compared to that required for acceleration, and the amount of heat the radiator must reject is commensurately low. Low enough, in fact, you don't really need to force air through it.

An air deflector does exactly as the name implies--it deflects air moving in one direction so it moves in a different direction. In this case, the air is deflected to go through the radiator when the engine is hotter, and away from the radiator when the engine is cooler. Forcing air through a radiator generates drag which must be overcome with engine power, and that takes fuel. So when engine temps are low enough at cruise speed the deflector closes to reduce drag and save fuel.
 
OP
OP

Ramseyi

Badlands
Well-Known Member
First Name
Ramsey
Joined
Dec 6, 2021
Threads
7
Messages
47
Reaction score
52
Location
Arlington
Vehicle(s)
2021 Ford Bronco Sport Badlands
Here's a drawing of the radiator assembly parts for the Bronco Sport. I believe what you are referring to is sometimes called active grill shutters. They open or close depending on engine temperature.

Power generation and heat are directly related; lower power output means lower heat output. The engine rejects heat with the radiator. The more air you move around and/or through the radiator the more heat is carried away. The horsepower required to maintain highway speed is relatively low compared to that required for acceleration, and the amount of heat the radiator must reject is commensurately low. Low enough, in fact, you don't really need to force air through it.

An air deflector does exactly as the name implies--it deflects air moving in one direction so it moves in a different direction. In this case, the air is deflected to go through the radiator when the engine is hotter, and away from the radiator when the engine is cooler. Forcing air through a radiator generates drag which must be overcome with engine power, and that takes fuel. So when engine temps are low enough at cruise speed the deflector closes to reduce drag and save fuel.
Thanks for the explanation, I'm new to this tech.
Sponsored

 
 







Top