I make two kinds of Disco compatible HDDs -- regenerative brake and FFH.

July 15 2017 at 11:26 AM

Steve in NC  (Login pneuguy)
AR&P


Response to Discovery Hammer Bounce / Debouncer

The FFH doesn't decrease hammer momentum reaction, because it works by reducing the transfer of energy from hammerspring to hammer when the hammer rebounds from the spring.

[linked image]

The regenerative brake HDD, however, arrests the hammer earlier in the bounce cycle as it rebounds, not from the spring, but from the valve stem. So it does reduce hammer reaction -- by as much as 50% -- and so would help the effect you're bothered by.

[linked image]
Steve

 
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