In my series of weekly hydraulics bulletins that go out to anyone who opts in to receive them, there are two messages that always provoke a response.
The first of these two bulletins sets out to explain how a double-acting cylinder becomes a displacement cylinder when the piston seal leaks and the load is acting to retract the piston rod. This message includes a link to a simulation video for the reader to watch and hopefully, think about.
Then a week later, a follow up message goes out, asking the recipient if they ‘got it’ – not the message itself, but the CONCEPT involved.… continue reading »