Not necessarily ATS-V related, but could be
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Cadillac ATS-V Series Forum Discussion, Not necessarily ATS-V related, but could be in Cadillac V-Series Forums; GM patent application for a supercharger. Shown is a pushrod V8 but could be a V6, etc. Note that the ...
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    rand49er's Avatar
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    Not necessarily ATS-V related, but could be

    GM patent application for a supercharger. Shown is a pushrod V8 but could be a V6, etc. Note that the compressor wheel can be driven either by the crankshaft (via gears, chain/sprocket, or belts) OR by an electric motor. If done by the latter, the PCM would be controlling the compressor's motor and thus the amount of boost independent of engine RPM and mostly independent of compressor vane geometry. No worries about no low-end or high-end boost deficiencies.

    http://www.freepatentsonline.com/20130319380.pdf


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    Ludacrisvp's Avatar
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    That does look interesting indeed.
    Anyone want to bet there will be intake manifold gasket issues with this?


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    Ragtop 99 is offline Cadillac Owners Enthusiast
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    Re: Not necessarily ATS-V related, but could be

    That would be an interesting hybrid. The car would need a decent size motor to spin a compressor to generate a lot of boost. Hybrid batteries could provide the on-demand power.

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    roadpie4u is offline Cadillac Owners Fanatic
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    Re: Not necessarily ATS-V related, but could be

    Quote Originally Posted by Ragtop 99 View Post
    That would be an interesting hybrid. The car would need a decent size motor to spin a compressor to generate a lot of boost. Hybrid batteries could provide the on-demand power.
    Exactly. Considering the amount of power a supercharger can easily consume just to produce boost in the first place, an electric motor is NOT ideal under a few hundred volts - at 12v the cables would be HUGE to handle that much current.

    Additionally, the benefit of a roots style blower (as an OEM) is that it is easy to package the thing with a bypass that lets it free spin under low load and not produce boost, thusly not wasting as much energy. The patent shown here (while vague) implies a centrifugal and a lack of bypass...

    With a hybrid, the mechanical or electrical aspect makes sense as you have the batteries and higher voltage bus. Without the hybrid? It makes no sense.

    Good find though!

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