49results about How to "Smooth direction" patented technology

Turbo-machinery and methods are disclosed for a bladeless conical radial turbine wherein fluid is directed axially within the pump body to produce an axial output. The rotor comprises a plurality of spaced apart conical elements. A plurality of spiraling flow paths may be provided to receive fluid to which fluid has been imparted by acceleration of the fluid through the spaces between the conical elements using boundary layer adhesion techniques. The fluid is smoothly directed to any number of subsequent boundary layer pumping stages which are axially positioned with respect to each other.

A device for funneling leaves into a bag, preferably used in conjunction with a leaf blower. The device includes a plurality of panels that define a passageway and two forwardly extending arms that define an intake area adjacent an entrance to the passageway. A bag is removably affixed adjacent to the exit of the passageway for receiving leaves and other objects blown therethrough. A ramp in the passageway induces circulating airflow in the bag. Additionally, the arms induce a corkscrew airflow and facilitate improved performance in directing objects through the passageway. The plurality of panels that make up the leaf catcher are preferably collapsible into a substantially flat configuration for ease of transport and storage. Further, the construction of the leaf catcher enables easy set up and take down when manipulating the panels from a folded to a operational configuration and vice versa.

A lighting device (1) is configured to include: an elongated flat substrate (2); a plurality of semiconductor light sources (3) arranged on the flat substrate in a longitudinal direction of the flat substrate; and a lens plate (4) disposed to face the semiconductor light sources, wherein the lens plate includes a lens-light-incident surface facing the semiconductor light sources and includes a lens-light-emitting surface, a first lens section (5) is formed on one of the lens-light-incident surface and the lens-light-emitting surface and distributing the light emitted by the semiconductor light source in the longitudinal direction, a second lens section (9) is formed on the other one of the lens-light-incident surface and the lens-light-emitting surface for distributing the light emitted by the semiconductor light sources in a width direction, and the first lens section has a curvature surface unit including two or more convex section curvature surfaces having different curvature radii and formed adjacent in the longitudinal direction, each convex section's curvature surface is disposed inside a facing area facing an area corresponding to a width of each semiconductor light source in the longitudinal direction.

A connector includes a body, a terminal base and a fixing base. The body has a terminal base groove consisting of a circular portion and a square portion suited to the profile of the terminal base. A protective base is provided to protect a first tenon from erroneously touched. A second tenon is utilized to engage with an annular recessed groove of the terminal base to combine the body with the terminal base in a first stage. The body has two sides having a first engaging projecting member and plural second engaging projecting members for engaging with those of the fixing base to complete a two-step engagement to enable the body, the terminal base and the fixing base combined together. The fixing base includes plural projecting-out rods and projecting-up rods to make the body combined with the fixing base, facilitating the connector conveniently assembled.

A vacuum pump for a seed planter includes a housing, an impeller rotated within the housing, and a motor or other drive. The housing has a central inlet and a circumferentially arranged outlet passage. The impeller vanes define air paths that are open to the outlet passage. The impeller has a central aperture for coupling to the output shaft of the drive and an impeller center cap screwed into the central aperture. The impeller has a curved conical center hub that surrounds the central aperture. The center hub and the center cap are configured to smoothly direct air flow to the passages between the vanes to reduce or eliminate a stagnant air region in a center of the impeller. The center cap can also be used as a tool to remove the impeller from the output shaft.

There is provided a multicylinder four-cycle combustion engine, in which a communication hole is formed, to allow gases to flow smoothly form one cylinder to another so that the pumping loss occurring within the cylinders can be reduced. The combustion engine (E) includes an engine casing (EC) having defined therein a plurality of cylinders (2A to 2D), each having a cylinder bore (20A to 20D), and a crank chamber (30A to 30D) below the respective cylinder bore. A partition wall (21) separating the neighbor cylinder bores (20A, 20B; 20C, 20D) of the cylinders (2A to 2D) and the crank chambers (30A to 30D) from each other is formed with a communication hole (4). An open edge portion (4aa) of the uppermost edge (4a) thereof, which opens into the cylinder bore (20A to 20D) has a circumferentially intermediate major portion extending in a direction substantially perpendicular to the cylinder longitudinal axis (CH).

A method for manufacturing a preferably asymmetrical lens element (5a) from a tempered blank (1) is characterized by: producing the lens element (5a) from a first partial volume (1a) of the tempered blank (1), whose thickness d is less than approximately 70%, preferably less than approximately 60%, particularly preferably less than approximately 50% of the thickness D of the tempered blank (1). Preferably, from a second partial volume (1b) of the tempered blank (1) at least a further lens element (5a′) is produced, wherein before the lens elements (5a, 5a′) are produced the tempered blank (1) is divided into the first and second partial volume (1a, 1b).

An air flow conduit (98) and a related plenum (80) for distributing conditioned air from a refrigeration and heating unit (64) on an end (44) of a railroad freight car (20) into a cargo space (53) within the car (20). A deflector directs a flow of air upward into an inlet end of the plenum (80) and allows the flow to expand gradually within the plenum, smoothing the flow of air within the plenum so that it continues effectively at sufficient rates over the length of the car (20).

A wind sail receptor for turning in a wind or water flow to operate a power generator that includes from six to ten identical, equal spaced blades, that are formed from two flat sections of a stiff material and are arranged between a rear hub and spaced apart forward disk and fitted to a center axle that is journaled through a frame. The two sections are each formed into from three to five blades by removing portions therefrom, with the formed blades bent to curve from the rear hub to a blade side end that is coupled to the forward disk.