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Thread: Lockwood-Hiller pulse jet engine - photo

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    Altair's Avatar
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    Lockwood-Hiller pulse jet engine - photo

    Lockwood-Hiller pulse jet engine.




    Patent:
    https://pdfpiw.uspto.gov/.piw?docid=...5&SectionNum=1


    Previously:

    Jet Ponies carousel - videos

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    baja (04-12-2020), mwmkravchenko (04-12-2020), Scotsman Hosie (04-17-2020)

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    Supporting Member Big Sexy's Avatar
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    This makes my little hobbyking pulse jet look inadequate. But boy o boy I love the way they feel in chest when they are running. Itís a lot like being at top fuel drag races or the super high power tractor pulls. Thatís the best comparison I can give to explain the sensation and feeling.

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    Supporting Member nhengineer's Avatar
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    nhengineer's Tools
    How about a link to the drawings - if there are any.

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    Supporting Member Philip Davies's Avatar
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    Philip Davies's Tools
    Excuse my ignorance, but I see what is described as a jet engine clamped to a workmate which seems to be resting on a timber baulk. Why does it not take off?

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    Scotsman Hosie (04-17-2020)

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    Supporting Member DIYSwede's Avatar
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    DIYSwede's Tools
    Quote Originally Posted by nhengineer View Post
    How about a link to the drawings - if there are any.
    There are:
    https://www.google.com/search?rlz=1C...w=1266&bih=561

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    Supporting Member DIYSwede's Avatar
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    DIYSwede's Tools
    Quote Originally Posted by Philip Davies View Post
    Excuse my ignorance, but I see what is described as a jet engine clamped to a workmate which seems to be resting on a timber baulk. Why does it not take off?
    Given its size, the produced thrust would be in the 40-60 lbs range,
    bolted and clamped to a Workmate tied to a railroad tie, it should apparently be good enough.

    A bigger issue could be the glowing stainless setting the table top afire,
    and the neighbors complaining: its blaring could easily be heard 5-6 mi away. YMMV.

    Homebrewed one by a Kiwi DIYer: https://aardvark.co.nz/pjet/mylockwood.shtml

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    Philip Davies (04-10-2020)

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    Supporting Member Philip Davies's Avatar
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    Philip Davies's Tools
    Thanks. But what I assume to be the air intake, not the thrust, is glowing almost white hot, which I don’t understand, either.

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    Supporting Member DIYSwede's Avatar
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    DIYSwede's Tools
    Philip, check this out for how and why a valveless pulsejet/ bent open tube of different leg lengths can work at all:
    https://en.wikipedia.org/wiki/Valvel...ejet_operation

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  13. #9
    Supporting Member Philip Davies's Avatar
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    Philip Davies's Tools
    Thank you, that helps considerably.
    Quote Originally Posted by DIYSwede View Post
    Philip, check this out for how and why a valveless pulsejet/ bent open tube of different leg lengths can work at all:
    https://en.wikipedia.org/wiki/Valvel...ejet_operation


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