FW189 spinners?

[Motherland]

My first thought when seeing it: it's gotta be a high speed Orange Juicer.

(Image removed from quote.)

[Baumer]

The dome spins independent of the propeller and drives an oil pump. It provides variable oil pressure to maintain the proper pitch setting.

[Tails]

Looks like it's designed to spin counter to the prop it's mated to. So the governor would probably be trying to keep the prop and spinner turning at the same RPM in relation to each other. It also means if the spinner seized to the prop, it would go max RPM. Pretty neat setup.

[Charge]

Found this: http://www.ww2aircraft.net/forum/technical/spinners-12071.html

"Rippenhaube"

The thread has scanned pictures of what is inside the mechanism. Its all mechanical and consists mostly of different sizes of gears.

Must be an expensive piece today to buy or to repair...

-C+

[Captfish]

Found this: http://www.ww2aircraft.net/forum/technical/spinners-12071.html

"Rippenhaube"

The thread has scanned pictures of what is inside the mechanism. Its all mechanical and consists mostly of different sizes of gears.

Must be an expensive piece today to buy or to repair...

-C+

[MiloMorai]

Thanks Captfish. 

[lowfly]

The vanes are part of the constant speed feature of the propeller. The fins are attached to the spinner and is free to spin,the spinner is attached to a small oil pump. The oil pressure adjusts propeller pitch, if the load on the propeller increases ie during climpb, the pressure falls and the pitch is decreased.

I'm trying to find a diagram of this, but I'm having little luck, But i havent given up yet.

So really it works much like a torque converter in a car in the fat that the spinner is full of fluid and willnot "overspin" ??

[Captfish]

I think, I'll be honest I have never worked on/owned a torque converter. Nor do I know anything about them. I have a manual tranny