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Balance shafts were invented by British engineer ...
Posted by Street (more from Street) on Thu, 21 May 2009 08:10:02
In Reply to: Re: Larry.......So you are telling me., xhawksaab, Mon, 18 May 2009 15:50:37
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Frederick Lanchester in 1904. Mitsubishi. Mitsubishi Motors pioneered the design in the modern era with its "Silent Shaft" Astron engines in 1975, with balance shafts located low on the side of the engine block and driven by chains from the oil pump, and they subsequently licensed the patent to Fiat, Saab and Porsche.
Saab has further refined the balance shaft principle to overcome second harmonic sideways vibrations (due to the same basic asymmetry in engine design, but much smaller in magnitude) by locating the balance shafts with lateral symmetry but at different heights above the crankshaft, thereby introducing a torque which counteracts the sideways vibrations at double engine RPM, resulting in the exceptionally smooth B234 engine.
posted by 62.195.11...
Wiki article...
Posts in this Thread:
- Is it true B235R engine has GM internals?......, Bill H, Sun, 17 May 2009 21:24:56
- That depends..., Larry West , Mon, 18 May 2009 07:46:57
- Not that I am aware.........., MI-Roger , Mon, 18 May 2009 03:34:20
- Re: Not that I am aware.........., BobS, Mon, 18 May 2009 08:07:12
- Ricardo???, Larry West , Mon, 18 May 2009 07:44:15
- Good stuff...., Mike Lynch , Tue, 19 May 2009 11:11:19
- Larry.......So you are telling me., Bill H, Mon, 18 May 2009 15:43:52
- I NEVER SAID..., Larry West , Thu, 21 May 2009 17:34:28
- Re: Larry.......So you are telling me., xhawksaab, Mon, 18 May 2009 15:50:37
- Balance shafts were invented by British engineer ..., Street, Thu, 21 May 2009 08:10:02 <-- Viewing This Message
- Re: OG 9-3 9-5 last of the SAABs, Bill H, Mon, 18 May 2009 15:56:55
- Re: OG 9-3 9-5 last of the SAABs, SWEDECAR , Mon, 18 May 2009 18:12:29
- I thought the key was in the dash board, DER, Tue, 19 May 2009 22:19:58
- Re: OG 9-3 9-5 last of the SAABs, swede-murphy , Tue, 19 May 2009 19:18:25
- Youngsters..., Mike Lynch , Tue, 19 May 2009 11:14:42
- Re: OG 9-3 9-5 last of the SAABs, Bill H, Mon, 18 May 2009 19:45:32
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