| 摘要 |
<p>A pumping system comprises a pump, first and second channels, a valve, and an actuator. The pump pumps fluid according to a pumping cycle. The first channel has a first fluid flow orifice with a first diameter, while the second channel has a second fluid flow orifice with a second diameter greater than the first diameter. The valve is configured to direct fluid from the pump to the first channel in a first state, and to the second channel in a second state. The actuator is configured to switch the valve into the first state during a high pressure period of the pumping cycle, and into the second state during a low pressure period of the pumping cycle.</p> |
| 申请人 |
GRACO MINNESOTA INC. |
发明人 |
ROSS, DANIEL P.;QUAM, PAUL, R.;LIND, ROBERT, J.;FARROW, DOUGLAS, B.;LIHWA, JOHN, S.;TIX, JOSEPH, E.;BRUDEVOLD, MARK, J.;WEINBERGER, MARK, T.;SHEAHAN, MARK, W.;COOK, SHAUN, M.;LONG, NICHOLAS, D.;SEBION, MICHAEL, J. |
