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#1
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Cool Animation on How Rotary Engines work
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
#2
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Nice.
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#3
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I've always been a big fan, having owned an RX7 convertible. Despite only "3 moving parts" it's not an efficient design - the problems will always be low torque and high heat output. But one reviewer describes revving the rotary through the gears as like running a chain saw through fiberglass. That's very accurate, and so much fun. Everyone should get the opportunity to at least drive one.
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1985 380SE Blue/Blue - 230,000 miles 2012 Subaru Forester 5-speed 2005 Toyota Sienna 2004 Chrysler Sebring convertible 1999 Toyota Tacoma |
#4
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I have difficulty following how the crank makes 3 rotations for each rotor cycle.
Sixto 87 300D |
#5
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I think you may have that backwards....there are three combustion cycles for each revolution--one for each of the three "sides" of the rotor . At least that is how I have understood it.
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags |
#6
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Quote:
That is why the torque is so low, but the crank output speed is 3 times faster than the rotors are actually turning.
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1985 380SE Blue/Blue - 230,000 miles 2012 Subaru Forester 5-speed 2005 Toyota Sienna 2004 Chrysler Sebring convertible 1999 Toyota Tacoma |
#7
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Quote:
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags |
#8
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I think my difficulty is that I envision the rotor turning the eccentric. In fact the rotor pushes the eccentric with sliding contact.
Sixto 87 300D |
#9
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Here's the 'real' (i.e. first) rotary engine. Saw one in person yesterday.
http://www.animatedengines.com/gnome.shtml
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#10
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Isn't that a radial engine regardless of what's fixed and what rotates?
Sixto 87 300D |
#11
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No. A radial engine has a turning crankshaft and fixed block. Rotary has a fixed crankshaft and turning block.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#12
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Quote:
His name was not "Felix Rotary". Like Kerry said; A 'Rotary' is like WW1 airplane engine; the mass turns around a stationary crankshaft. And No it is not called a radial engine;... when the crankshaft turns then it is a 'radial' layout. Yes I am being an Ass. But Uncle Felix would take issue with his invention. .. . I overhauled a Wankel engine in 1976; it bent my brain seeing how it worked with the side housing off. . .
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"Our Lady of Blessed Acceleration... don't Fail Us Now" |
#13
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A Radial engine....just to complete the discussion.
http://www.youtube.com/watch?v=4hWZ40120BQ&feature=related
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags |
#14
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Quote:
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#15
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That's an older video, I guess. The current rotary powered car sold in the US for the last 6 or 8 years-the RX-8- has exhaust ports in the side housings that look much like the intake ports.
The first engine Wankel built had a stationary eccentric shaft and the rotor housings rotated around it. That was quickly improved to the planetary type engine we have today. |
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