I'm in the process of designing a pump which needs to have slots cut into the cylinder for the inlet - similar in some ways to a 2 stroke.
Normally on projects like this I would just use a floating O'ring seal as thse seem to work well and live long. However a side port will likely rip it to pieces so I am left with few options.
1 to run the piston with no rings and hope that the good : fit will minimise the leakage.
2 to use cast iron piston rings, which I have no experience of, and I'm not sure I want to get into. It sounds like a very skilled manufacturing procedure.
3 random idea I came up with, to machine a groove in the cylinder wall and use an oring cylinder wall seal after the slots that the piston would seal with.
4 to ask the experts on HMEM :bow: who by rights should be fed up with my random pestering questions.
So I opted for 4 - many thanks HMEM members.
Best Regards
picclock
Normally on projects like this I would just use a floating O'ring seal as thse seem to work well and live long. However a side port will likely rip it to pieces so I am left with few options.
1 to run the piston with no rings and hope that the good : fit will minimise the leakage.
2 to use cast iron piston rings, which I have no experience of, and I'm not sure I want to get into. It sounds like a very skilled manufacturing procedure.
3 random idea I came up with, to machine a groove in the cylinder wall and use an oring cylinder wall seal after the slots that the piston would seal with.
4 to ask the experts on HMEM :bow: who by rights should be fed up with my random pestering questions.
So I opted for 4 - many thanks HMEM members.
Best Regards
picclock