Ram air channel arrangement and method for operating a ram air channel arrangement
AssigneeAirbus Operations GmbH
InventorsHolger Bammann, Alexander Solntsev, Frank Klimpel, Alexandre Broquet
Life of this patent
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Abstract
A ram air channel arrangement for ambient air supply into an aircraft comprises a ram air channel which has a ram air inlet channel and a ram air outlet channel arranged downstream of the ram air inlet channel and in fluid communication with the ram air inlet channel. The ram air channel arrangement further comprises a cabin exhaust air line which is adapted to have cabin exhaust air flow therethrough which has been removed from an aircraft cabin and which cabin exhaust air line is connected to the ram air inlet channel and is adapted to lead the cabin exhaust air into the ram air inlet channel.
Claims19
A ram air channel arrangement for ambient air supply into an aircraft comprising:
- a ram air channel which comprises a ram air inlet channel and a ram air outlet channel arranged downstream of the ram air inlet channel and in fluid communication with the ram air inlet channel,
- a cabin exhaust air line which is adapted to have cabin exhaust air flow therethrough which has been removed from an aircraft cabin and which cabin exhaust air line is connected to the ram air inlet channel and is adapted to lead the cabin exhaust air into the ram air inlet channel,
- a control unit which is adapted to control an air mass flow through the ram air channel by appropriate control of at least one of a movable inlet flap which is arranged in a region of an inlet of the ram air inlet channel and is adapted to set an inlet flow cross-section of the ram air inlet channel and of a movable outlet flap which is arranged in a region of an outlet of the ram air outlet channel and is adapted to set an outlet flow cross-section of the ram air outlet channel,
- wherein the control unit is adapted to control the supply of ambient air into the ram air inlet channel based on a cabin exhaust air mass flow supplied to the ram air inlet channel via the cabin exhaust air line.
A method for operating a ram air channel arrangement for ambient air supply into an aircraft, which arrangement comprises a ram air channel having a ram air inlet channel and a ram air outlet channel arranged downstream of the ram air inlet channel and in fluid communication with the ram air inlet channel, the method comprising the step of:
- leading cabin exhaust air removed from an aircraft cabin into the ram air inlet channel,
- controlling an air mass flow through the ram air channel by appropriate control of a movable inlet flap which is arranged in a region of an inlet of the ram air inlet channel and is adapted to set an inlet flow cross-section of the ram air inlet channel and of a movable outlet flap which is arranged in a region of an outlet of the ram air outlet channel and is adapted to set an outlet flow cross-section of the ram air outlet channel,
- wherein the supply of ambient air into the ram air inlet channel is controlled based on a cabin exhaust air mass flow supplied to the ram air inlet channel via the cabin exhaust air line.
Dependencies are inferred from the claim text.