公开(公告)号：US5201182A

公开(公告)日：1993-04-13

申请号：US689375

申请日：1991-04-22

Applicant: Robert Grignon ,  Pascal Trouillot

Inventor： Robert Grignon ,  Pascal Trouillot

IPC: B64D13/08 ,  B64D43/00 ,  F25B9/00 ,  G12B15/04 ,  H05K7/20

CPC classification number: B64D13/08 ,  B64D2013/0614 ,  F25B9/004 ,  Y02T50/56

Abstract: In a method for the thermal conditioning of electronic equipment mounted on aircraft, a flow of ram air is tapped and transferred to first means enabling said flow of air to be given a first negative gradient of temperature after which, if necessary, the flow air coming from said first cooling means is transferred to second means capable of giving a second negative gradient of temperature to said flow of air, after which the flow of air coming directly from the first cooling means, combined as the case may be with the flow of air coming from the second cooling means, is transferred to the immediate vicinity of the electronic equipment to be cooled, thus achieving an appropriate thermal conditioning of said electronic equipment. The disclosure also relates to the systems designed for the implementation of this method.

Abstract translation: 在用于安装在飞机上的电子设备的热调节方法中，冲压空气流被挖掘并转移到第一装置，以使所述空气流能够被给予第一负梯度的温度，在此之后，如果需要， 从所述第一冷却装置被转移到能够对所述空气流赋予第二负温度梯度的第二装置，之后直接来自第一冷却装置的空气流与壳体相结合可以与空气流 来自第二冷却装置的电子设备被转移到要冷却的电子设备的紧邻处，从而实现所述电子设备的适当的热调节。 本公开还涉及为实施该方法而设计的系统。

公开(公告)号：US4482302A

公开(公告)日：1984-11-13

申请号：US335570

申请日：1981-12-29

Applicant: Robert Grignon

Inventor： Robert Grignon

IPC: F04D19/00 ,  F04D29/02 ,  F04D29/54 ,  F04D29/52

CPC classification number: F04D29/545 ,  F04D29/023 ,  F05D2260/96

Abstract: The cross-sectional area of the airflow duct on at least one face of the fan housing is larger than the cross-sectional area of a cylindrical portion of duct which cooperates with the impeller. A junction portion having an S-shaped cross-section in an axial plane is provided on at least part of the duct periphery between the cylindrical portion and that housing face. The fan duct progressively increases in width from the cylindrical portion to the housing face and the S-shaped junction portion has a point of inflection substantially at the midpoint of its axial length. A reduction in noise level is thus achieved during operation of the fan.

Abstract translation: 风扇壳体的至少一个面上的风道的横截面面积大于与叶轮配合的管道的圆筒部分的横截面面积。 在圆筒部分和该壳体面之间的管道周边的至少一部分上设置有在轴向平面上具有S形横截面的接合部分。 风扇通道从圆柱形部分到壳体表面的宽度逐渐增加，并且S形接合部分具有基本上在其轴向长度的中点处的拐点。 因此，在风扇的操作期间可以实现噪音水平的降低。