| 摘要 |
<p>Friction Couple Cooling system Responsive to Actuation Thereof Cooling systems for friction couples such as clutches are useful, for example, in industrial vehicles that utilize large capacity clutches which generate large amounts of heat when the clutches are being engaged. Other cooling systems either reduce or totally eliminate cooling flow during disengagement while adding additional flow for cooling during partial engagement but in these systems they normally maintain the additional cooling flow after full engagement. In such cooling systems, the additional fluid flow being provided after full engagement results in unnecessary use of horsepower. Furthermore, the additional flow is provided at a pressure level that also uses extra horsepower. The present cooling system provides a limited flow rate to the clutches during disengagement and provides additional cooling flow to the clutches during partial engagement and controls the pressure level of the fluid from the source of cooling fluid by operation of a valve mechanism which is responsive to a control mechanism. Upon full engagement, the valve mechanism automatically reduces the volume of cooling fluid to the clutches and simultaneously reduces the pressure level of the cooling flow from the source of cooling fluid. This cooling system provides the needed volume of cooling fluid during partial engagement of the clutches and also reduces the volume of cooling fluid during disengagement to reduce drag forces while further reducing the volume of cooling fluid during full engagement to conserve horsepower.</p> |
