For modern liquid cooled AC motors and inverters, often you will need separate cooling circuits as the inverter and motor operate in different temperature ranges.
It surprises many that you need liquid cooling in an electric car, but modern high powered IGBT power switching circuitry can be smaller, operate better, and last longer if it is liquid cooled. And getting power out of an electric motor is really about getting the heat out. And liquid cooling is just many times more effective than air cooling.
But we don't like leaks. And so at EVTV we use AN fittings and hose ends with nylon braided hose. Properly assembled, these anodized aluminum hose ends will just never let go and they almost never leak. So we've adopted the hardware used by race and custom car enthusiasts for transmission coolers, for use in our electric cars. These are the highest quality components avialable.
The heart of this "dual circuit" is a common heat exchanger that actually features two separate cooling circuits but under one single 650CFM fan. That is the only common element in the system. Each circuit gets its own fill tank, pump and of course the connections to the inverter or motor.
This kit consists of:
1 Derali 15200 Dual Circuit 650CFM Heat Exchanger
2 Piersburg CA-50 Pumps.
2 Canton Racing 16 oz fill tanks with 16lb radiator cap
30 feet of AN-8 black nylon hose
10 straight black anodized AN-8 female hose ends (4 heat exchanger, 4 pump, 2 tank)
2 90 degree black anodized AN-8 hose ends (tank)
2 1/2 inch male NPT to AN-8 male adapters (tank)
6 3/8 inch male NPT to AN-8 male adapters (2 tank and 4 pump)
2 four pin electrical plugs for Piersburg pumps
1 200A 400V diode for fan
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