|  | Topic : Electronic Supercharger - Chapter 2 |  |
| | | biscuits | | Set |  | | Reg. Date | : | 19/11/2012 | | Posts | : | 7 | | Location | : | United States |
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| | Posted : 30 Nov 2012 - 13:34 Post title : Re: Electronic Supercharger - Chapter 2 (Re: DizzE) | |
| | | DizzE | | Thor | |  | | Reg. Date | : | 12/07/2010 | | Posts | : | 3,141 | | Location | : | Sunnyvale, CA, United States |
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| | Posted : 30 Nov 2012 - 18:07 Post title : Re: Electronic Supercharger - Chapter 2 (Re: biscuits) | | | But....is that what you really think?  
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| | | CornerBanger | | Jupiter | |  | | Reg. Date | : | 07/07/2010 | | Posts | : | 1,113 | | Location | : | Charleston, SC, United States |
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| | Posted : 03 Dec 2012 - 17:40 Post title : Re: Electronic Supercharger - Chapter 2 (Re: DizzE) | | | That is what I think!!!
| There are those who own and there are those who ride!
2010 Thunderbird
2007 Kawi KX250F
2010 Kawi KX85 (My boy's ride)
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| | | DizzE | | Thor | | | | Reg. Date | : | 12/07/2010 | | Posts | : | 3,141 | | Location | : | Sunnyvale, CA, United States |
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| | Posted : 05 Dec 2012 - 04:59 Post title : Re: Electronic Supercharger - Chapter 2 (Re: DizzE) | | | Reviewing for the arrival of the C15 tomorrow, I came across a couple of items that we must consider. Surge control is an interesting opportunity as a possible advantage over a belt driven system. As you stop the boosted acceleration and back off the throttle, backflow or surging can occur. A pressure difference and a disturbance in the Force. Something that is bad for the blades and bearings, etc.
Alain has experience with centrifugal compressors, and understands this can be a problem, I'm sure.
From the Rotrex Tech Handbook, 4.5.2, Ducting
Compressor Surge
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Surge can occur when the supercharger increases pressure ratio at low air flow (left border of the flow map, see technical datasheets). Under surge, air flow through the compressor can no longer be maintained and momentary backflow occurs resulting in a characteristic chirping sound. Surge can be caused by a blocked inlet air stream, such as a throttle valve or a clogged air filter. Continuous operation in surge will cause damage to the supercharger. To prevent surge, it is necessary to relieve the system from excessive pressure through recirculation or blow-off. A re-circulation valve will prevent surge by allowing air to circulate from outlet to inlet of the supercharger under vacuum conditions.
Crankcase Venting
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The crankcase ventilation system (Positive Crank Ventilation PCV) is to be connected to the inlet of the supercharger to prevent pressurizing the crankcase.
| | Post edited by DizzE on 05 Dec 2012 - 05:00 |
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