초록 ▼

An air intake for an aircraft forms a first airflow channel (8) for feeding fresh air into the aircraft, and a second airflow channel (2) for feeding cooling air to an auxiliary power unit (AP). These first and second airflow channels are so positioned relative to each other that respective channel

An air intake for an aircraft forms a first airflow channel (8) for feeding fresh air into the aircraft, and a second airflow channel (2) for feeding cooling air to an auxiliary power unit (AP). These first and second airflow channels are so positioned relative to each other that respective channel inlets or flow cross-sectional areas can be opened and closed by a single seesaw rocker (4) which is journaled or hinged between its ends to the aircraft body in such a position that one end (4A) of the seesaw rocker (4) can close the first channel (2) while the other rocker end (4B) simultaneously closes the second channel (8). The seesaw rocker (4) is driven by a motor responsive to the operation of the auxiliary power unit. When the auxiliary power unit operates, both channels (2, 8) are open. When the auxiliary power unit does not operate both channels (2, 8) are closed.

대표청구항 ▼

1. An air intake for an aircraft including an auxiliary power unit housed in a chamber of an aircraft body having an outer skin and an opening in said outer skin for feeding external air through said opening into said aircraft, said air intake comprising a first airflow channel (2) passing through s

1. An air intake for an aircraft including an auxiliary power unit housed in a chamber of an aircraft body having an outer skin and an opening in said outer skin for feeding external air through said opening into said aircraft, said air intake comprising a first airflow channel (2) passing through said opening for feeding fresh air into said aircraft, a second airflow channel (8) passing through said opening for feeding cooling air to said auxiliary power unit, a seesaw rocker (4) for simultaneously closing or opening first and second air inlets of said first and second airflow channels (2, 8) respectively, a hinge (5) positioned between first and second rigidly interconnected end portions (4A, 4B) of said seesaw rocker (4), said hinge (5) securing said seesaw rocker (4) to said aircraft body in a position permitting said simultaneous closing or opening of both said first and second air inlets of said first and second airflow channels (2, 8), said air intake further comprising a drive motor (M) operatively connected to said seesaw rocker (4) at a pivot (P) for rocking said seesaw rocker (4) between an airflow channel closing position and an airflow channel opening position, whereby said first and second air flow channels (2, 8) are opened and closed by the same see-saw rocker (4) and wherein said drive motor (M) is responsive to an operational status of said auxiliary power unit (AP) for closing said first and second airflow channels (2, 8) when said auxiliary power unit is not operating and for opening said first and second airflow channels (2, 8) when said auxiliary power unit is operating.2. The air intake of claim 1, further comprising a drive link (10) connecting said drive motor (M) to said seesaw rocker (4) at said pivot (P) securing one end of said drive link (10) to said seesaw rocker member (4) at a point between said hinge (5) and a downstream edge of said first end portion (4A) of said seesaw rocker (4).3. The air intake of claim 1, further comprising a stationary air separation member (11) rigidly secured outside to said aircraft body (1) upstream of both said first and second air inlets of said first and second airflow channels (2, 8) as viewed in a direction of air flowing along said aircraft body, said stationary air separation member (11) having a downstream end (12) positioned for cooperation with said second end portion (4B) of said seesaw rocker (4) when said see-saw rocker (4) is in an open position to form a first fresh airstream (6) and to guide said first fresh airstream (6) into said first airflow channel (2), said stationary air separation member (11) further forming a second cooling airstream (9) guided into said second airflow channel (8) when said auxiliary power unit is operating.4. The air intake of claim 3, further comprising at least one support member (15) having an aerodynamic configuration, said at least one support member (15) rigidly securing said air separation member (11) to said aircraft body.5. The air intake of claim 3, further comprising a liquid separator (13) positioned between said aircraft outer skin (1) and said air separation member (11), said liquid separator (13) extending toward said air separation member (11) from said aircraft outer skin (1) and reaching partially into said second cooling airstream (9).6. The air intake of claim 5, wherein said liquid separator (13) extends at a right angle relative to said air separation member (11).7. The air intake of claim 5, wherein said liquid separator (13) has a shape of a guide vane having a wedge shape (WS) facing with a tapering end of said wedge shape opposite to a flow direction of said second cooling airstream (9).8. The air intake of claim 1, further comprising an inlet coupling in a wall of said chamber and an airflow channel extension connected to said inlet coupling for feeding said cooling air directly into said chamber wherein said auxiliary power unit is housed.9. The air intake of claim 1, further comprising a coupling and a pipe leading into said chamber wherein said auxiliary power unit is housed, said coupling connecting said pipe to said second air flow channel (8) for feeding cooling air to said auxiliary power unit.10. The air intake of claim 1, wherein said hinge (5) of said seesaw rocker (4) is located below said second airflow channel (8) and upstream of said first airflow channel (2).11. An air intake for an aircraft including an auxiliary power unit housed in a chamber of an aircraft body having an outer skin and an opening in said outer skin for feeding external air through said opening into said aircraft, said air intake comprising a first airflow channel (2) passing through said opening for feeding fresh air into said aircraft, a second airflow channel (8) passing through said opening for feeding cooling air to said auxiliary power unit, a seesaw rocker (4) for simultaneously closing or opening first and second air inlets of said first and second airflow channels (2, 8) respectively, a hinge (5) positioned between first and second rigidly interconnected end portions (4A, 4B) of said seesaw rocker (4), said hinge (5) securing said seesaw rocker (4) to said aircraft body in a position permitting said simultaneous closing or opening of both said air inlets of said first and second airflow channels (2, 8), said air intake further comprising a drive motor (M) operatively connected to said seesaw rocker (4) at a pivot (P) for rocking said seesaw rocker (4) between an airflow channel closing position and an airflow channel opening position, whereby said first and second air flow channels (2, 8) are opened and closed by the same see-saw rocker (4) and wherein said drive motor (M) is responsive to an operational status of said auxiliary power unit (AP) for closing said first and second airflow channels (2, 8) when said auxiliary power unit is not operating and for opening said first and second airflow channels (2, 8) when said auxiliary power unit is operating, said air intake further comprising a stationary air separation member (11) rigidly secured outside to said aircraft body (1) upstream of both said first and second air inlets of said first and second airflow channels (2, 8) as viewed in a direction of air flowing along said aircraft body, said stationary air separation member (11) having a downstream end (12) positioned for cooperation with said second end portion (4B) of said seesaw rocker (4) when said see-saw rocker (4) is in an open position to form a first fresh airstream (6) and to guide said first fresh airstream (6) into said first airflow channel (2), said stationary air separation member (11) further forming a second cooling airstream (9) guided into said second airflow channel (8) when said auxiliary power unit is operating.12. An air intake for an aircraft including an auxiliary power unit housed in a chamber of an aircraft body having an outer skin and an opening in said outer skin for feeding external air through said opening into said aircraft, said air intake comprising a first airflow channel (2) passing through said opening for feeding fresh air into said aircraft, a second airflow channel (8) passing through said opening for feeding cooling air to said auxiliary power unit, a seesaw rocker (4) for simultaneously closing or opening first and second air inlets of said first and second airflow channels (2, 8) respectively, a hinge (5) positioned between first and second rigidly interconnected end portions (4A, 4B) of said seesaw rocker (4), said hinge (5) securing said seesaw rocker (4) to said aircraft body in a position permitting said simultaneous closing or opening of both said air inlets of said first and second airflow channels (2, 8), said air intake further comprising a drive motor (M) operatively connected to said seesaw rocker (4) at a pivot (P) for rocking said seesaw rocker (4) between an airflow channel closing position and an airflow channel opening position, whereby said first and second air flow channels (2, 8) are opened and closed by the same see-saw rocker (4) and wherein said drive motor (M) is responsive to an operational status of said auxiliary power unit (AP) for closing said first and second airflow channels (2, 8) when said auxiliary power unit is not operating and for opening said first and second airflow channels (2, 8) when said auxiliary power unit is operating, said air intake further comprising a liquid separator (13) positioned between said aircraft outer skin (1) and an air separation member (11) spaced from said outer skin, said liquid separator (13) extending toward said air separation member (11) from said aircraft outer skin (1) and reaching partially into said second cooling airstream (9).