| 摘要 |
<p>A transmission with a countershaft brake.includes a countershaft, a positive displacement pump including a pump housing having a chamber with an inlet and an outlet, the pump being driven by the countershaft, and a flow restric tor disposed at or downstream of the chamber outlet, the flow restrictor being adjustable to increase and decrease an amount of flow restriction from, the outlet of the chamber. Torque needed to drive the pump increases with an increasi ng flow restriction by the flow restrictor. A method for braking a countershaft in a transmission is also provided.</p> |
