Quote:
Originally Posted by dcb
ok, so how much efficiency are we really talking about for hh transmission? if theoretical max is 89%, that is probably the unobtanium version that costs a bajillion dollars.
is it safe to say that after high pressure seals and internal leakage/etc that 80% is a more realistic?
how much does an 80% efficient hh cost initially and weigh that can transmit 15 hp on the output shaft?
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Transmission alone 93-95%. The 89% was wheel to accumulator back to wheel. Best accumulators are 99%.
95X99X95=89.3475%
Next energy told me anything above 80% was gravy, they were at 78% 3 years ago.
Efficiency would be highest from a dead stop and drop off slightly at higher speeds.
regards
Gary