A curvilinear plate for a heat exchanger is provided. The curvilinear plate can include an inner plate defining a plurality of first grooves and an outer plate defining a plurality of second grooves. The outer plate is attached to the inner plate with the plurality of first grooves and the plurality of second grooves substantially aligned to define a plurality of channels therebetween. Each channel extends from a first opening on a first portion of a first end of the curvilinear plate to a second opening on a second portion of the first end. A method is also generally provided for forming a curvilinear plate.

A wind turbine blade (108) providing enhanced shear distortion resistance comprises a root end (118) and a tip end (116), a leading edge (112) and a trailing edge (114), and a suction side shell (122) and a pressure side shell (124) between which there is provided first and second shear webs (150, 152, 166, 168, 170, 172). The first and second shear webs (150, 152, 166, 168, 170, 172) are arranged in V-configuration in a chordwise cross section of the blade, whereby at least one of the first and second shear webs (150, 152, 166, 168, 170, 172) is non-orthogonal to the chord line (115), and the first and second shear webs are non-parallel. A method of manufacturing the wind turbine blade includes the step of providing respective upper and lower mould halves (200, 202) for the blade interconnecting the first and second shear webs (150, 152, 166, 168, 170, 172) by an elastic structure (190) biasing the shear webs towards one another before closing the mould.

A method for manufacturing a wind turbine blade, comprising the steps of: providing one or more individual pultrusions including a first tapering end with a tapering end face terminating in a taper tip, and arranging the one or more pultrusions in one layer or more stacked layers including at least a bottom layer on a first assembly surface at a first assembly station to provide a pultrusion arrangement extending in a longitudinal direction between a pultrusion root end and a pultrusion tip end, wherein the first tapering end of the one or more pultrusions form the pultrusion root end or the pultrusion tip end of the pultrusion arrangement.

Provided is a method for producing a wind turbine blade having a blade body including a body part and a tip part, the blade being produced by using a mold, wherein a prefabricated tip part having a first connection interface is arranged adjacent to the mold for producing the body part, whereby building elements for building the body part are arranged in the mold providing a second connection interface which corresponds to and connects to the first connection interface, whereafter both connection interfaces are fixed by applying a fixing agent and curing it.

An electrically driven pump is provided, which includes an impeller. The impeller includes an upper plate, blades and a lower plate. The blades are formed on a lower surface of the upper plate, the blades include first blades and second blades, and a length of each of the first blades is greater than a length of each of the second blades. The first blades are uniformly distributed along a circumference of the upper plate. The first blades and the second blades are distributed alternately in the circumferential direction. The first blades each include a first head portion and a first tail portion, the second blade includes a second head portion and a second tail portion, and the first tail portion and the second tail portion are aligned with outer edge of the upper plate. The impeller arranged in such manner facilitates the improvement of hydraulic efficiency and lift.

The present invention relates to a method of manufacturing a wind turbine blade (10). The method comprises arranging one or more shear webs (50, 55, 70) within a first shell half, adhesively joining the one or more shear webs to the first shell half, and adhesively joining the second shell half to the first shell half and to the one or more shear webs. The step of arranging the one or more shear webs within the first shell half comprises arranging at least one telescopic support member (80) between the inside surface (38b) of the first shell half (38) and the lateral surface (62) of at least one of the shear webs (70), wherein the telescopic support member (80) comprises an actuator (82) for adjusting the length of the telescopic support member.

The present invention relates to a root end assembly (100) for incorporating a plurality of fastening members (74) into the root end of a wind turbine blade shell part during a moulding operation. The root end assembly (100) comprises a mounting plate (70) with a plurality of apertures (72) and a plurality of sheath members (83), each sheath member being disposed in a respective aperture of the plurality of apertures (72). Connection members (78) are received in the sheath members (83), and a plurality of said fastening members (74) are releasably attached to a respective connection member of the plurality of connection members (78) such that the fastening members (74) extend substantially normal to a first surface (77) of the mounting plate (70). The apertures (72) are dimensioned for allowing translational movement of the sheath members (83) in the respective apertures (72).

A wind turbine blade with shear distortion resistance includes a root end and a tip end, a leading edge and a trailing edge, and a suction side shell and a pressure side shell between which there are first and second shear webs. The first and second shear webs are arranged in a V-configuration in a chordwise cross section of the blade, whereby at least one of the first and second shear webs is non-orthogonal to the chord line, and the first and second shear webs are non-parallel. A method of manufacturing the wind turbine blade includes providing respective upper and lower mould halves for the blade and interconnecting the first and second shear webs by an elastic structure biasing the shear webs towards one another before closing the mould.

The present disclosure provides a wind turbine blade with an improved trailing edge structure and a manufacturing method thereof. The wind turbine blade includes an upper shell, a lower shell, and a trailing edge, where a trailing edge bonding region enclosed by the upper shell, the lower shell and the trailing edge is filled with composite materials, and the composite materials are discontinuous in an airfoil chordwise direction. The manufacturing method includes the following steps: S1: manufacturing reinforcements with a same cross-sectional shape as the trailing edge filling region for composite materials; and S2: integrally molding the reinforcements, a fiber fabric and the upper shell, providing the lower shell, combining the upper shell and the lower shell, and performing heating for curing and molding. The discontinuous filling structure reduces usages of the adhesive and the reinforcements of the composite materials. The small web can improve a strength of the trailing edge region, and reduce a bonding width of the trailing edge. Therefore, the present disclosure realizes a light weight of the wind turbine blade.