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Subject: 
Re: pneumatic cylinder: why not hydraulic ??
Newsgroups: 
lugnet.technic
Date: 
Tue, 6 Apr 2004 19:21:46 GMT
Viewed: 
2508 times
  
In lugnet.technic, Chris Masclet wrote:
Hi everybody,

I' ve read a long time ago something like this: LEGO pneumatic cylinder cannot
be use as hydraulic cylinder.

Is anybody can explain me why ?? May be we can' t use water with cylinder (may
be cause of corrosion) but what about silicone oil ?? or something like that....


The simplest reason is that when the switch is flipped to one side, the other
port is released to the atmosphere.

This means that your hydraulic fluid would spill all over the floor.  Figure out
how to eliminate the free release (hint, only throw the switch half way) and you
will have taken the first big step.  My pneumatic multiplexors might be able to
help, but I've never looked into it.

Kevin



Thanks for your answers



Do not forget to visit my LEGOTIC site:-)

http://mapage.noos.fr/chrismaker/index.htm

Chris.



Message has 1 Reply:
  Re: pneumatic cylinder: why not hydraulic ??
 
(...) Well one solution to that problem is to position all the switches above a "hydraulic fluid catchment area", however I still think it would be prone to spillage ;) ROSCO (20 years ago, 6-Apr-04, to lugnet.technic)

Message is in Reply To:
  pneumatic cylinder: why not hydraulic ??
 
Hi everybody, I' ve read a long time ago something like this: LEGO pneumatic cylinder cannot be use as hydraulic cylinder. Is anybody can explain me why ?? May be we can' t use water with cylinder (may be cause of corrosion) but what about silicone (...) (20 years ago, 6-Apr-04, to lugnet.technic)

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