49results about How to "Increased moment of inertia" patented technology

An improved building panel with increased stiffness and resistance to buckling is disclosed. The panel cross section is characterized by a novel center portion comprised of radially arranged longitudinal stiffening ribs which transition into side portions configured to allow joining of the panels. The configuration of the panel's center section results in an increased moment of inertia as well as higher resistance to positive and negative bending moments and local buckling when compared to existing designs. Additionally, the panel configuration allows curving longitudinally without corrugations. These improvements in the strength of the panel and the elimination of corrugations reduce design constraints on buildings constructed of such panels and allow larger buildings to be constructed.

A brake dust collecting device for a motor vehicle has a dust collecting unit and an air flow generating device that generates an air flow that flows across brake parts of a motor vehicle wheel brake and that supplies brake dust of the wheel brake to the dust collecting unit. The air flow generating device has a rotatable fan blade and the dust collecting unit is a filter element.

The invention relates to an integrated yaw type floating wind power plant at sea. The integrated yaw type floating wind power plant at seat is provided with a plurality of yaw type wind generating sets and an annular floating platform. Each yaw type wind generating set comprises wind wheels, an engine room, a tower bowl and a steering frame. The wind wheels are installed on the engine room, the engine room is fixed on the tower bowl, and the bottom of the tower bowl is installed on the steering frame. The annular floating platform comprises an annular rail and a plurality of floating bowls used for supporting the annular rail. The steering frame of each yaw type wind generating set runs around the circle center of the annular floating platform on the annular rail in an annular mode. Metal space trusses or grid structures are adopted for body structures of the tower bowls, and each metal space truss or each grid structure is composed of steel plates with different thicknesses. A respective single yaw system of each wind generating set is saved, the failure rate can be reduced, and maintenance cost and personal safety accidents can be reduced. Strength and rigidity of the tower bowls can be greatly improved, and with the same number of steel products, anti-bending inertia moments of the tower bowls can be greatly improved.

An iron-type golf club head having a club face provide with a plurality of grooves extending in the toe-heel direction, satisfies the following conditions (1) the loft angle of the club head is not more than 41 degrees, (2) the thickness of the club head is not more than 23 mm, (3) the height of the club face measured along the club face at the position of the most toe-side end of the grooves is not less than 53 mm, (4) in a standard state of the club head set on a horizontal plane at the lie angle and loft angle specified for the club head, the ratio M / Sh (g sq·cm / mm) of a moment M of inertia (g sq·cm) around a first axis passing through a sweet spot in parallel with the club face and perpendicularly to the grooves, and a sweet spot height Sh (mm) which is the vertical height from the horizontal plane to the sweet spot is not less than 152.