The scenario
A hybrid vehicle test bench requires separate engine and inverter coolant loops with expansion tanks, heat exchangers, filters, and flow control.
What is in this drawing
Read the decisions behind it.
01
Used two independent closed loops with expansion tanks and inline filters
02
Selected motor-actuated fail-closed valve for engine loop and diaphragm fail-open valve for inverter loop
03
Added electric flow transmitters to shared controllers for both loops, plus local temperature indicators
When designing or documenting automotive coolant test rigs that need separate heat-rejection circuits for engine and power electronics.
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