公开(公告)号：US20090311101A1

公开(公告)日：2009-12-17

申请号：US12293933

申请日：2007-03-14

Applicant: Stephane Moreau ,  Antoine Levasseur ,  Aurelien Levasseur ,  Manuel Henner ,  Bruno Demory ,  Cedric Lebert

Inventor： Stephane Moreau ,  Antoine Levasseur ,  Aurelien Levasseur ,  Manuel Henner ,  Bruno Demory ,  Cedric Lebert

IPC: F04D29/38

CPC classification number: F04D29/384

Abstract: The fan impeller (10) comprises a hub (14) and blades (12) extending radially outward from the hub, the blades having a flattened airfoil profile cross section with a leading edge (24) and a trailing edge (26) between which a chord is defined. The blade (12) has a relative thickness that reached its maximum value (Emax) in the first quarter of the length of the chord measured from the leading edge (24), the relative thickness being defined by the ratio between the thickness of the blade and the length of the chord. The invention finds an application particularly in motor vehicle engine cooling fan impellers.

Abstract translation: 风扇叶轮（10）包括轮毂（14）和从轮毂径向向外延伸的叶片（12），所述叶片具有扁平翼型轮廓横截面，其具有前缘（24）和后缘（26） 和弦被定义。 叶片（12）具有在从前缘（24）测量的弦的长度的第一个四分之一中达到其最大值（Emax）的相对厚度，相对厚度由叶片的厚度之间的比率 和弦的长度。 本发明特别适用于机动车发动机冷却风扇叶轮。

公开(公告)号：US6024537A

公开(公告)日：2000-02-15

申请号：US902295

申请日：1997-07-29

Applicant: Stephane Moreau ,  Norman G. Golm

Inventor： Stephane Moreau ,  Norman G. Golm

IPC: F04D29/32 ,  F04D29/38

CPC classification number: F04D29/326 ,  F04D29/384

Abstract: A fan module with an axial flow fan and a shroud member. The axial flow fan has a hub and a plurality of fan blades, each blade extending radially from the hub. At the tips of the blades are air guide members secured to respective fan blades and concentric with the hub. Each air guide member has an axially-extending arcuate portion, and a respective lip portion extending radially outwardly from each said arcuate portion. The axially-extending portion has an axial length substantially equal to or less than the axial length of said hub. The shroud member has a surface cooperating with the air guide members in an arrangement to reduce tip vortices.

Abstract translation: 具有轴流风扇和护罩构件的风扇模块。 轴流风扇具有轮毂和多个风扇叶片，每个叶片从轮毂径向延伸。 在叶片的尖端处是固定到相应风扇叶片并与轮毂同心的空气引导构件。 每个空气引导构件具有轴向延伸的弓形部分，以及从每个所述弓形部分径向向外延伸的相应唇部。 轴向延伸部分的轴向长度基本上等于或小于所述轮毂的轴向长度。 护罩构件具有与空气引导构件协作的表面，以减少尖端旋涡的布置。