Nordson Corporation
APPLICATOR WITH AT LEAST ONE PUMP HAVING THERMAL BARRIER AND ACTIVE COOLING

Abstract:

In one example, a pump assembly configured to connect to a manifold of an applicator includes a pump, a drive motor unit, and a thermal isolation region. The drive motor unit includes an output drive shaft connected to the pump and a drive motor configured to rotate the output drive shaft about a drive axis. The thermal isolation region is between the pump and the drive motor. The thermal isolation region includes an isolation plate and a thermal isolation frame. In one example, a cooling sleeve surrounds a proximal end portion of the drive motor unit so as to define an air flow passage between the proximal end portion of the drive motor unit and an inner surface of the cooling sleeve. In one example, the pump assembly further includes a coupling operatively connecting the pump and the drive shaft, the coupling including an insulating element therein.