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  • New gasoline engine design

    So as not to piss in Brian's sandbox I started a new thread regarding different engines.

    I really like the Hütlin's Kugelmotor. It is fascinating in its concept. The company that developed the engine is only about 10km away from me. The motor can be made into a very quiet air compressor. The main goal was to extend the range of electric cars. It actually is a generator that charges the batteries of electric cars.

    http://auto.howstuffworks.com/huttli...al-engine2.htm
    Last edited by Black Forest; 01-09-2014, 01:20 PM.
    Location: The Black Forest in Germany

    How to become a millionaire: Start out with 10 million and take up machining as a hobby!

  • #2
    The cam/follower idea looks to be the weakest link (the equivalent function of crank/rods in a conventional engine). That is a lot of swept area. Any wear is going to change the timing of everything.

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    • #3
      LOL ... It wasn't until the end that author helped me figured out it wasn't some kind of kitchen appliance. I couldn't figure out what casserole had to do with it and it confused me all the way through.

      Sounds too much like another perpetual engine.

      Comment


      • #4
        Originally posted by dp View Post
        The cam/follower idea looks to be the weakest link (the equivalent function of crank/rods in a conventional engine). That is a lot of swept area. Any wear is going to change the timing of everything.
        Koenigsegg (the Swedish supercar manufacturer) have been running a camless solenoid/actuator development engine for a few years now

        http://www.youtube.com/watch?feature...&v=Bch5B23_pu0

        Rob

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        • #5
          There are other ICE designs that promise much higher efficiencies, but most are diesel:
          http://nextbigfuture.com/2008/10/pis...rsus-high.html
          http://www1.eere.energy.gov/hydrogen...fs/28890yy.pdf (free piston engine research)

          http://www.greencarreports.com/news/...n-fruit-for-us (65 MPG)
          http://jalopnik.com/5742891/volkswag...l-hybrid-coupe (260 MPG Hybrid)
          http://www.nbcnews.com/id/42460541/n.../#.Us8ABJ0o7IU
          http://pauleschoen.com/pix/PM08_P76_P54.png
          Paul , P S Technology, Inc. and MrTibbs
          USA Maryland 21030

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          • #6
            so the kugels (?!) slide on a bearing inside a piston that slides on a bearing in opposition to a rotor that turns the case. I think the answer to the "Got that?" question would be a no.

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            • #7
              Interesting. I wonder if anybody knows that Preston Tucker(builder of the Tucker automobile) had an 8 cylinder, air cooled engine that didn't use a camshaft to open & close the valves. He utilized an "oil distributor" that used engine oil to open each valve when needed. Problems appeared when the engine was run at high speed and bubbles in the oil disrupted the valve timing. Running out of time before the first production Tuckers were to be introduced, Tucker was forced to substitute an "Air Cooled Motors" helicopter engine for the prototype engines.

              HSM had an article on the construction of a solenoid actuated two-cylinder gas engine a while back.
              No good deed goes unpunished.

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              • #8
                Here is a link to the OP's engine including a video of the internals in motion.

                http://www.gizmag.com/huttlin-kugelmotor/19923/

                Comment


                • #9
                  Originally posted by Black Forest View Post
                  So as not to piss in Brian's sandbox I started a new thread regarding different engines.

                  I really like the Hütlin's Kugelmotor. It is fascinating in its concept. The company that developed the engine is only about 10km away from me. The motor can be made into a very quiet air compressor. The main goal was to extend the range of electric cars. It actually is a generator that charges the batteries of electric cars.

                  http://auto.howstuffworks.com/huttli...al-engine2.htm
                  Nothing new under the sun. Variations of this engine existed in the early 1960's and a similar engine made the cover of Popular Science magazine. The piston engine ain't going away- nothing else is as cheap to manufacture or as easy to control the exhaust emissions.

                  Comment


                  • #10
                    This is fascinating and the versatility is a major "selling point". In many cases, the ideal form factors for machines seems to be spheres, toroids, and sinusoidal or parabolic shapes. But I think the article is mistaken in their assertion that EVs are not yet viable or practical for the everyday driver. They do require a change of thinking, and battery technology will need to advance a bit more, but the ICE is destined to obsolescence as more serious research and innovation develop more efficient electric motors and energy storage and transfer technology. Fossil fuels should instead be considered fossil chemical resources and used for the manufacture of plastics and pharmaceuticals. Burning stuff should be reserved for heating, where it is nearly 100% efficient, and even for that there are other technologies such as passive solar and geothermal that are much more sustainable and cleaner.
                    http://pauleschoen.com/pix/PM08_P76_P54.png
                    Paul , P S Technology, Inc. and MrTibbs
                    USA Maryland 21030

                    Comment


                    • #11
                      I'd like to get back to Brian's engine that got the interest going in the Rootes TS3 which as we have seen is a remarkable engine.
                      This engine has also been a test bed engine for engineers who recognised that there was untapped power there.

                      In 1971 the Institute of mechanical Engineers in the Uk held a half day discussion on "Some Unusual Engines old and new" with some very renown guest speakers.
                      Also present was the late L.J.K. Setright who took notes and published these proceedings in a book called just "Some Unusual Engines"
                      Long out of print they do crop up from time to time but at a high cost, usually around £100 or $160

                      Below is a snippet from the book describing work done at Bath to increase the power of the TS3 from 120bhp to 420 bhp by compounding.

                      ********

                      It was in1963 that Professor Wallace first developed the concept of the
                      differential compound engine, in a theoretical paper based on earlier studies
                      of the potential performance of opposed-piston two-stroke diesel engines
                      subjected to very high boost pressures. These studies have indicated that an
                      engine of this type, which gave 120bhp when naturally aspirated, might after
                      modification with variable-compression-ratio pistons achieve ratings of
                      320bhp a a boost pressure ratio of 3,rising to as much as 420bhp at a
                      pressure ratio of 5.Such power in such modest bulk (it represented 29 to 37
                      bhp/ft cubed )
                      represented a worthwhile advance even over the best results achieved
                      in the high-output four-stroke diesels introduced by such American firms as
                      Continental and Caterpillar in the 1960s; and it was judged worthwhile to
                      embark on the appropriate research at Bath University of Technology
                      (Bristol) ,using as a basis the well known Rootes TS3 compression-ignition
                      engine.
                      The differential compound engine is one in which three basic constituents
                      (engine,compressor and turbine ) are connected through differential gearing.
                      The exhaust gases from the engine are fed to a turbine , the output shaft of
                      which is geared to the output shaft of the engine by way of the spider carrying
                      the planetary pinions of a differential gear in which the annulus is on the
                      engine output shaft and the sun wheel drives the superchargers.

                      .

                      Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.



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                      • #12
                        My sandbox appreciates your consideration!!
                        Brian Rupnow

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                        • #13
                          I've always wondered what a Spitfire would have sounded like if RR had perfected the 2 stroke 1800bhp Crecy engine in time.

                          http://en.wikipedia.org/wiki/Rolls-Royce_Crecy

                          Rob
                          Last edited by MrSleepy; 01-10-2014, 06:51 AM.

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                          • #14
                            You might have heard the engine once and once only, for probably a very short period of time before permanent deafness set in. The Crecy apparently raised the limits of what was meant by exhaust noise to an entirely new level. Legend has it that when it was tested at Derby, the noise was clearly heard in Nottingham (about 15 miles away) and set the air raid sirens off.
                            Bill

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                            • #15
                              I like 2 cycle engines.

                              I have an idea in my head on how to build a 2 cycle engine which would still have the conventional 4 cycle type oiling system but still the 2 cycle part of no valves and fires on every stroke.

                              Basically instead of using the crank case as the air pump, using forced induction and leave the crank case sealed to use an oil system.
                              Andy

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