27-10-2016 дата публикации
Номер: US20160312788A1
Принадлежит:
In a fan module () of a vehicle engine, the fixed shroud () of the module () has a circular opening () receiving a fan () rotating about a main axis (X). The opening () is circumvented by a peripheral wall () cylindrically extending in the downstream direction (DD) beyond the fan () toward a corner edge where the wall () angles radially and inwardly to extend toward a circular downstream edge. The downstream portion of the peripheral wall () forms an annular channel (C) opening in the upstream direction (UD) The channel (C) forming an axial continuation of the gap (G) that is between the tips () of the blades () of the fan (). The gap (G) is continuous, non-divided and non-partitioned. 110. A fan module () of a vehicle engine , the fan module having an upstream direction (UD) and a downstream direction (DD) axially opposite to the upstream direction , the fan module comprising{'b': 12', '16', '14', '20', '16', '18', '14', '40', '18', '34', '14', '42', '18', '22', '20', '14', '18, 'a fixed shroud () receiving, in an opening, () a fan () with blades () rotating about a main axis (X), the opening () being circumvented by a peripheral wall () extending in the direction (DD) beyond the fan () toward a corner edge () where the peripheral said wall () reorients radially and inwardly to extend toward a circular edge () downstream of the fan () so that a downstream portion () of the peripheral wall () forms an annular channel (C) opening in the upstream direction (UD), the channel (C) forming a continuous space to the gap (G) that is between tips () of the blades () of the fan () and the peripheral wall (), the gap (G) being continuous, non-divided and non-partitioned,'}{'b': 48', '30', '14', '34', '18', '48', '10', '2', '48, 'wherein a 360° aperture () is formed between a downstream outer edge () of the fan () and the circular edge () of the peripheral wall (), wherein the annular channel (C) is arranged downstream of the 360° aperture () and, during operation of the module ...
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