Advantage Engineering, Inc.

Ronald A Wolfe

Philip D Oswalt

Andrew J Sander

Steven E Wash

Liquid pump for injection mold

A tank for holding liquid having internal partitions. The partitions have enlarged bottom ends fillable with liquid and restable on the bottom wall of the tank to limit sideways movement of the partitions. The partitions are mounted to the tank only above the liquid within the tank by a channel that loosely receives the top ends of the partition.

Tank with internal baffle

Water tank

A machine for circulating cooling water through manufacturing process equipment includes a combination pump and heat exchanger assembly. The machine has a cast metal pump case with two upwardly opening sockets receiving the lower ends of two tanks, one of them 'the suction tank' communicating through the case with the pump impeller intake, and the other 'the discharge tank' communicating with the impeller discharge. The tanks are constructed to function as heat exchangers, and they are readily and removably secured to the pump case by threaded fasteners and are sealed therein by compression seals. The discharge tank has electrical heating elements. The suction tank has a motor-operated modulator valve precisely fixed thereon, so as to enable discharging excessively warm water from the process to drain while cool make-up water from city water supply is admitted through the suction tank to the pump. A controller including a microcomputer responds to temperature of water pumped from the machine through the process equipment to be temperature controlled, and returned to the machine, to control the electric heater and/or the modulator valve, as needed. A flow meter in the suction tank provides input to the controller to provide a display of the water flow through the process, and temperature sensors are used to provide input to the controller to display cooling water temperature change. This information can be combined to provide a display of the cooling load. The machine is self-contained and wheel-mounted for mobility to facilitate connection to and disconnection from the process equipment.

System temperature control tank with integral modulator valve and

A portable, wheel-mounted, mechanically-refrigerated chiller for water used to cool a heat generating manufacturing process machine, has a process cooling water flow sensor assembly with conventional connections into the process water circulation portion of the chiller. The assembly includes a magnetically impregnated plastic vane operated by water flow through it, and a Hall-effect motion sensor responsive to vane operation to provide a signal to a computer. Water temperature to the process and from the process is monitored by sensors producing signals to the computer. The computer combines this information to produce a front panel digital read-out of the percent of capacity at which the chiller is operating or, upon selection, the refrigeration tonnage applied by the chiller to the process water.

Display method and apparatus for load and capacity for chillers

A combination pump and heat exchanger assembly in a manufacturing process temperature controller uses a cast metal pump case with two upwardly opening sockets receiving the lower ends of two tubes, one of them communicating through the case with the pump impeller intake and the other with the impeller discharge. Closed circuit and open circuit versions are shown. In both types, the tubes are constructed to function as tanks, at least one being a heat exchanger unit, and they are readily and removably secured to the case by threaded fasteners and are sealed therein by compression seals. The heat exchanger tubes employ electrical heating elements or chilled liquid piping units therein. A controller including a microcomputer responds to temperature of liquid pumped from the assembly through a process to be temperature controlled, and returned to the assembly, to control an electric heater and/or a motor-operated modulator valve discharging to drain while cool make-up water is admitted. The combination is self-contained and wheel mounted for mobility to facilitate connection to and disconnection from the process equipment.

Heat transfer apparatus

A combination pump and heat exchanger assembly uses a cast metal pump case with two upwardly opening sockets receiving the lower ends of two tubes, one of them communicating through the case with the pump impeller intake and the other with the impeller discharge. The tubes are constructed to function as heat exchanger units and are removably secured to the case by threaded fasteners and are sealed therein by compression seals. The heat exchanger tubes may employ electrical heating units or chilled liquid piping units therein.

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Indianapolis, IN, United States of America

Ronald A Wolfe