| 摘要 |
An oil cooling and filtering circuit connecting a reciprocating fluid power hydraulic cylinder to a reversible hydraulic pump or hydraulic directional valve. The circuit consists preferably of a three-way, three-position valve and a purge relief valve, which functions to divert a percentage of the low pressure oil coming out of the cylinder work port to an oil cooler. Instead of the fluid simply moving back and forth in the line and become overheated due to fluid friction and repeated pressurization, the working fluid in the line to the cylinder work port is circulated out of the fluid line and gradually replaced with cooled oil. The circuit itself does not perform cooling, but it provides a means to send trapped oil to an oil cooler. A secondary advantage is to provide filtration to the oil that is removed for cooling.
|
