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This is a normal post I wonder how they get a decent seal between the rotating piston unit and the stationary cylinder head?

(I helped save b3ta! Varmint, Sun 21 Dec 2014, 22:53, , Reply)
This is a normal post If it's anything like the ones I've read about they just rotate the whole engine block.

(I helped save b3ta! jonbob loves you, Sun 21 Dec 2014, 23:06, , Reply)
This is a normal post If I'm not mistaken, the Long Lance topedo engine used a similar layout.
I'll have to look that up.
 (smellysamlyingcable Seaman on, Sun 21 Dec 2014, 23:13, , Reply)
This is a normal post Round engines fit nicely in torpedos.
It's not that uncommon.
 (I helped save b3ta! jonbob loves you, Mon 22 Dec 2014, 1:25, , Reply)
This is a normal post Oh do they?
Anyhows... Range of 40Km+ in 1938ish - For a blooming torpedo!

Trying to find pic of the engine to see if it would fit on a motorbike...
"Mine's a moded CBR with 190Hp at the wheel, what about yours?"
"EMERGENCY pause JAPANESE pause WAR pause POWER"
followed by a maniac laugh.
 (smellysamlyingcable Seaman on, Mon 22 Dec 2014, 8:00, , Reply)
This is a normal post The vid said the spark plugs, inlet and outlet ports remain stationary
The cylinders rotate below the cylinder head, progressing from inlet port, to spark plug, to outlet. There has to be a decent seal between the two, particularly with compression ratios of up to 14:1.

Wankel (pfnar pfnar) engines have problems with seals between combustion chambers, meaning they use more oil than a conventional cylinder engine.
 (I helped save b3ta! Varmint, Mon 22 Dec 2014, 2:03, , Reply)
This is a normal post The seal thing has be solved since about 1995.
It's solved, unless you put a MASSIVE turbo on it.
As for burning oil, If you burn diesel, your fuel is your lubricant.
The remaining problem is the narrow operating range.
This is not an issue for drones or ICE-Electric.
Ex: austroengine.at/en/products

However it means the engine operates at a constant RPM, and does not go "VROUM VROUM".
It seems people want this noise more than light weight, economy and reliability.
At least that's what the marketing departments of car makers say.
But they have all been infiltrated by Clarkson.
The bastard.
 (smellysamlyingcable Seaman on, Mon 22 Dec 2014, 8:13, , Reply)
This is a normal post Interesting stuff.
I know oil is used as a lubricant in two stroke engines, but I thought in four strokes it affected the efficiency.

Having said that, I had Honda VTEC that used to drink oil but apparently that was normal.
 (I helped save b3ta! Varmint, Mon 22 Dec 2014, 8:51, , Reply)
This is a normal post The big difference between modern engines
Is how you run it:
An engine built to run at a constant 750 Rpm (to produce 50Hz) where only the load varies,
is far easier to fully optimise than having one with a power-band of 500 to 1500 Rpm.

For one, I cannot comprehend why hauling vehicles are not diesel electric.
Apart from the sector being traditionalistic.
 (smellysamlyingcable Seaman on, Mon 22 Dec 2014, 9:21, , Reply)