Patent ID: 11959492
Assignee: POWEREX-IWATA AIR TECHNOLOGY, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump assembly having a first and second stage for cooling process air, the assembly comprising:
a pump and a motor coupled by a coupling arrangement, the pump having a cooling air intake and a cooling air exhaust for a flow of cooling fluid the pump being cooled by the flow of the cooling fluid from the cooling air intake to the cooling air exhaust;
the pump further configured to cause process air to flow a process air intake to a process air discharge; and
an enclosed heat exchanger having a process air inlet and a process air outlet coupled to the pump, the heat exchanger comprising isolated first and second regions such that within said first region said cooling air exhaust of said pump is positioned at a first stage of tubing within said heat exchanger and further such that within said second region said cooling air intake of said pump is positioned at a second stage of tubing within said heat exchanger, wherein the first and second stages of tubing are separated by a baffle, the baffle forming a separation wall that divides and isolates the first region from the second region, further wherein the first and second stages of tubing extend the length of the enclosed heat exchanger, further wherein the first and second stages of tubing comprise multiple parallel tubes, wherein each tube extends from the first region to the second regions, wherein the process air is cooled by the flow of cooling air in the second region before the cooling air flows to the cooling air intake and wherein the process air is cooled in the first region after the cooling air flows from the cooling air exhaust.