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engine using screw compressors

Discussion in 'Electronic Basics' started by bright spark, Sep 17, 2005.

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  1. bright spark

    bright spark Guest

    my name is Peter Ivan Dunne,
    I am publishing this design as I am unable to raise the funds to build it myself let alone the cost of patents
    I believe therefore the best way of ensuring my design is built is to publish it into the public domain
    Anybody who wishes to can contact me by email using the subject engine

    ok for a rotary engine description
    this is text only so no drawings sorry

    first look at the turbojet engine principle, thanks to nasa we have a basic description here simple enough, ok.
    to use a jet engine it has to run at an optimal speed to be efficient and powerful, this rotational speed has also to be near
    constant and cannot therefore be effectively used in automotive applications.

    to get round this problem introduced by the dynamics of a jet engine we need a totally different system,
    the solution is to use the screw compressor principle instead of turbines.
    a basic description of one can be found at or

    the advantage of this design is that it can run efficiently over a wide rpm range and when compared to for instance a wankel
    design the non-contact design of this device has very low wear and friction

    so the basic solution is to replace the intake and exhaust turbines with screw compressors.
    theres more to it than that,
    take a look at a modern turbo jet, the first turbine is large getting progressively smaller
    we can duplicate this effect by designing a screw compressor with a variable pitch so that the screw at the intake end has a
    wider and deeper thread width and at the exhaust end shallower and narrower pitch, the exhaust turbines are the opposite as
    is our screw compressor.
    now we can all look forward to a future with engines enjoying the benefits of simplicity of design, low friction, low vibration and
    high fuel efficiency especially when compared to a piston engine
  2. Yes,Yes but what about the electronics ??
    (bearing in mind the name of this NG)
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