Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Hydraulic rules
well seeing as though ive got a few hydraulic bits on the doorstep thought i might confirm a few things.
Accumulators - in my system im using a hydraulic bladder (as a resivour i guess youd describe it as) but it also has the capability to hold a gas pre charge to act as a proper accumulator. so while the capability is there why not use it
i dont know why the UK has banned accumulators anyway? (as the bladders they all use are accumulators after all the manufacturers ive chatted too). only reason i could think of was because they limit gas pressure to 1000psi when you need full hydraulic pressure in gas form to make the accumulator work.
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
I think that if any part is a standard unmodified hydraulic part it should be used within it's pressure rating. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Tue Sep 18, 2007 7:01 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Problem with "pressurized" accumulators is that the system is always pressurised. (about 70 bar is common). Not handy when you need to work on the hydraulics.
Unscrew a connection, and presto, instant shower. If you get this "flash shower" in your eyes, it's to the hospital.
In your shed/livingroom/kitchen, not my problem. Not funny to hear if it is worse than soaked clothing and enviroment.
In the arena, I hope it catches fire in the progress, that's "cool"
But in the pits, it is a problem. You probably drench others too. And then it's up to the organisers insurance.
Wed Sep 19, 2007 5:02 am
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