| 摘要 |
An automatic hand held transmission fluid changer includes a compact housing internally plumbed with a pair of open ended drain and supply tubes for connection at respective first ends with a pair of hoses connected at their respective opposite ends to remote waste and unused fluid tanks. The respective tubes include second ends for connection with a second pair of hoses leading to respective upstream and downstream transmission components for, respectively, withdrawing used fluid from and introducing unused fluid to a transmission. A demand pump is connected in fluid circuit with the supply hose to flow unused fluid from the unused fluid tank to the supply tube. A controller is provided and acts to receive an electric signal proportional to the rate of fluid flow from a flow meter in the drain tube and to manipulate a control valve in the supply tube such that an automatic balancing of flow rates is achieved.
|
