Gas Delivery Engine; Appendix C: Pneumatic Diagram - CareFusion AVEA Operating Instructions Manual

AVEA ventilator systems

Appendix C: Pneumatic Diagram

Gas Delivery Engine

The Gas Delivery Engine receives and conditions supplied Oxygen and Air from external and/or internal (compressor) sources. It
then mixes the gas to the concentration required and delivers the desired flow, or pressure to the patient.
The Gas Delivery Engine begins with the Inlet Pneumatics. The Inlet Pneumatics accepts clean O
filtration and regulates air and O
concentration before reaching the Flow Control Valve. The Flow Control Valve controls the flow rate of the gas mixture to the
patient. Between the Oxygen Blender and Flow Control Valve, the Accumulator System is installed to provide peak flow capacity.
The Flow Sensor provides information about the actual inspiratory flow for closed loop servo control. The gas is then delivered to
the patient through the Safety/Relief Valve and Outlet Manifold.
Air
Inlet
Pneumatics
Oxygen
Figure C1 Gas Delivery Engine
L2786 Rev. M
gas before entering the Oxygen Blender. The Oxygen Blender mixes the gases to the desired
2
Compressor
Flow
(Optional)
Oxygen Accumulator
Blender System
Flow Control
Flow Sensor
Valve
, or Air; it provides extra
2
Safety/Relief
Patient
Valve &
Flow
Manifold
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