Description:
Expansion device with pressure difference dependent mass flow rate
Basic specifications:
- Overall Weight: 5 g
- PXV Diameter: 7,9 mm
- PXV Length: ~58 mm
- Filter Mesh Size: 80 mm
- Filter Surface: 500 mm2
- PXV mass flow curve adaptable on system/costumer requirements
- Integrated pop open function
- NVH improved
- Pulsation testing completed
- Rough road durability testing completed
System Requirements:
- Optimized internal system volume and relation between Lp and HP volume
- Optimized system charge
- PXV curve has to be adapted to system size and performance
Advantages:
- Max Cool Down Performance @ transcritical operation
- Close to COP Optimum @ transcritical operation
- COP @ subcritical conditions outperforms R134a
- On mode energy savings through pop open function
- Lower cost than R134a TXV&
- Lower weight and easier packaging
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