Topic: I normally think new engine designs are stupid (Read 4061 times)

PhilStubbs · « **on:** November 13, 2011, 04:33:02 PM »

but i like this one. i still doubt it will take off, but i like it anyway

http://thekneeslider.com/archives/2011/09/08/duke-engines-5-cylinder-4-stroke-3-injector-valveless-axial-engine/

flat_black · « **Reply #1 on:** November 13, 2011, 04:38:24 PM »

pretty neat, sounds cool too, i wonder why nothing ever comes of these inventions that people come up with, is the gasoline engine we have now really the best thing out there?

92CXyD · « **Reply #2 on:** November 13, 2011, 04:42:14 PM »

Interesting design, problem I see is the added complexity.

PhilStubbs · « **Reply #3 on:** November 13, 2011, 04:43:18 PM »

i think what we have now is so cheap to manufacture compared to something new like this and thats why it sticks around. i think people would also be scared off if they had a choice between buying a car with this engine and one with a conventional engine. kinda like the rotary, they werent big sellers and rightly so. who wants to mix oil into their gas at the gas station. lol

snm95ls · « **Reply #4 on:** November 13, 2011, 05:07:52 PM »

That is pretty damn rad.

slappynuts · « **Reply #5 on:** November 13, 2011, 05:16:33 PM »

Where are you guys getting this extra complexity from? There is zero valvetrain. Looks pretty simple to me.

snm95ls · « **Reply #6 on:** November 13, 2011, 05:20:40 PM »

Quote from: slappynuts on November 13, 2011, 05:16:33 PM

Where are you guys getting this extra complexity from? There is zero valvetrain. Looks pretty simple to me.

Because it doesn't use a standard ICE engine configuration, duh.

klyph · « **Reply #7 on:** November 13, 2011, 05:25:12 PM »

The head gasket is now a moving combustion seal just like the piston rings. I'd like to see how long it runs before that seal fails.

PhilStubbs · « **Reply #8 on:** November 13, 2011, 06:05:36 PM »

the only thing i see complicated is the "headgasket" but if they have a solid plan for that, then everything else is simple. everything can have roller bearings so there is no need for oil pressure. there is a lot moving, but not a lot of moving parts, its just a big chunk that looks complicated but its pretty simple. valve float, coil bind, broken valves, and piston/ valve contact are all non issues. you could boost the hell out of it and rev it to the moon.

j.h.christ · « **Reply #9 on:** November 13, 2011, 07:40:49 PM »

the reason none of these designs make it to market is because of the people that have billions wrapped up in oil and traditional internal combustion engines.

klyph · « **Reply #10 on:** November 13, 2011, 07:55:20 PM »

Uh this is an ICE.

j.h.christ · « **Reply #11 on:** November 13, 2011, 08:08:32 PM »

Quote from: klyph on November 13, 2011, 07:55:20 PM

Uh this is an ICE.

no shit?

SQ is the SQUAD · « **Reply #12 on:** November 13, 2011, 08:25:54 PM »

how much boost can it handle?

PhilStubbs · « **Reply #13 on:** November 13, 2011, 08:37:58 PM »

10 pounds on a duke will turn ya out!!!

highroller54 · « **Reply #14 on:** November 13, 2011, 09:53:07 PM »

its a gm ac compressor

dvst8r · « **Reply #15 on:** November 13, 2011, 11:45:16 PM »

Quote from: highroller54 on November 13, 2011, 09:53:07 PM

its a gm ac compressor

LOL, it's true.

snm95ls · « **Reply #16 on:** November 14, 2011, 12:02:32 AM »

Quote from: j.h.christ on November 13, 2011, 08:08:32 PM

Quote from: klyph on November 13, 2011, 07:55:20 PM
Uh this is an ICE.

no shit?

klyph · « **Reply #17 on:** November 14, 2011, 03:58:37 AM »

No shit brah, for realsies.

HiProfile · « **Reply #18 on:** November 14, 2011, 12:12:41 PM »

Quote from: klyph on November 13, 2011, 05:25:12 PM

The head gasket is now a moving combustion seal just like the piston rings. I'd like to see how long it runs before that seal fails.

I was thinking that too, since they don't mention "matching conventional reliability" anywhere. However I would imagine a bearing-like surface with oil fed onto it with a rubber seal. It probably has the same rotational speed as a large rear main seal on a larger engine, and they don't feed those oil, nearly all are just splash lubed.

The complexity is the parts themselves, but when you have 1/3 the parts that need 2x the machining, you've saved 1/3 of the machining time/costs. They already use a similar type of "pump" in some car's air conditioner compressors. The even cooler part about that, some of those compressors are variable-compression.

2slow · « **Reply #19 on:** November 14, 2011, 05:40:48 PM »

https://www.youtube.com/watch?v=Z1LrmLHOUpg&feature=youtube_gdata_player
this one seems pretty cool as well

92CXyD · « **Reply #20 on:** November 14, 2011, 06:16:46 PM »

also this https://www.youtube.com/watch?v=eRhxctg5mns&feature=related

If ya speak German reminds me of some previously posted mighty mite engine.

snm95ls · « **Reply #21 on:** November 14, 2011, 09:37:57 PM »

Quote from: HiProfile on November 14, 2011, 12:12:41 PM

Quote from: klyph on November 13, 2011, 05:25:12 PM
The head gasket is now a moving combustion seal just like the piston rings. I'd like to see how long it runs before that seal fails.

I was thinking that too, since they don't mention "matching conventional reliability" anywhere. However I would imagine a bearing-like surface with oil fed onto it with a rubber seal. It probably has the same rotational speed as a large rear main seal on a larger engine, and they don't feed those oil, nearly all are just splash lubed.

The complexity is the parts themselves, but when you have 1/3 the parts that need 2x the machining, you've saved 1/3 of the machining time/costs. They already use a similar type of "pump" in some car's air conditioner compressors. The even cooler part about that, some of those compressors are variable-displacement.

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Author Topic: I normally think new engine designs are stupid (Read 4061 times)