Abrégé

The invention relates to a separation channel for separating a fluid flowing through into two or more components, which separation channel comprises: - two parallel walls, each wall having a groove structure, in which the grooves extend at an angle of more than 0° and less than 90° to the direction of flow; and - a groove outlet, into which the grooves open for carrying off one of the two components separately.

Classes IPC  ?

• A61M 1/36 - Autre traitement du sang dans une dérivation du système circulatoire naturel, p. ex. adaptation de la température, irradiation
• B01D 17/02 - Séparation de liquides non miscibles
• B01D 21/26 - Séparation du sédiment avec emploi de la force centrifuge
• B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
• G01N 33/49 - Analyse physique de matériau biologique de matériau biologique liquide de sang

Abrégé

The present invention relates to a layer for reducing the friction resistance of a fluid relative to an object and for improving the contact of a boundary layer of the fluid flowing past, and thereby increasing the lift, comprising a wave-like approach flow surface repeating in a first direction which comprises means for transporting fluid from the boundary layer of the fluid flowing past to cavities in the wave-like approach flow surface. The present invention further relates to a method for manufacturing such a layer.

Classes IPC  ?

• F15D 1/12 - Action sur l'écoulement des fluides autour de corps formés d'un matériau solide en agissant sur la couche-limite

Abrégé

The invention relates to a skate comprising: - a frame; - an elongate blade mounted to the frame; and - a foot holder, like for example a shoe, arranged to the frame, wherein the elongate blade has a bottom surface, which surface is substantially semi-cylindrical and comprises a number of parallel abutting grooves extending in the longitudinal direction of the elongate blade and having a cross-section shaped as a cirkelsegment.

Classes IPC  ?

• A63C 1/32 - Structures particulières de la lame simple

Abrégé

The invention relates to a surface substantially cylindrical having a plurality of parallel helical grooves comprising a common longitudinal axis, substantially coinciding with the longitudinal axis of the cylindrical surface, and a circular cross-section, wherein each groove surface is provided with a plurality of parallel helical grooves having a common longitudinal axis, substantially coinciding with the longitudinal axis of the groove.

Classes IPC  ?

• F15D 1/06 - Action sur l'écoulement des fluides dans les tuyaux ou les conduits en agissant sur la couche-limite

Abrégé

The invention relates to a surface structure comprising surface elements (3) arranged in scales forming alternating rows, wherein the surface elements comprise grooves (4), which extend obliquely from the longitudinal axis (5) of a row in a featherlike arrangement, wherein preferably the surface elements (3) in a row extend over each other like tiles, and/or the surface elements (3) are leaf shaped, and/or the stalk of the leaf shaped surface elements (3) is teardrop shaped providing a pin shape to the surface elements.

Classes IPC  ?

• B64C 21/10 - Moyens permettant d'influencer l'écoulement d'air sur les surfaces des aéronefs en agissant sur la couche limite par utilisation d'autres caractéristiques de la surface, p. ex. la rugosité

Abrégé

The invention relates to an object comprising a surface (2) provided with parallel primary grooves (3), each comprising an arcuate cross-section, wherein in the primary grooves (3) are arranged ridges (4) which are formed in accordance with the function y=xz, wherein z=0.5 to 1000 and wherein the axis of symmetry (6) of the grooves (3) lies substantially at right angles to the lengthwise (L) direction of the grooves (3).

Classes IPC  ?

• B64C 21/10 - Moyens permettant d'influencer l'écoulement d'air sur les surfaces des aéronefs en agissant sur la couche limite par utilisation d'autres caractéristiques de la surface, p. ex. la rugosité
• F15D 1/06 - Action sur l'écoulement des fluides dans les tuyaux ou les conduits en agissant sur la couche-limite