B22F2005/004

Inductor and method for producing the same
11600438 · 2023-03-07 · ·

An inductor includes an element containing a magnetic metal powder and a resin, a coil that includes a winding portion and paired extended portions extended from both ends of the winding portion and that is embedded in the element, a pair of an external terminal electrically connected to one of the extended portions and an external terminal electrically connected to the other of the extended portions, and a conductive layer disposed on a surface of the element that crosses the winding axis of the coil. The conductive layer includes a first metal layer formed by fusing together the magnetic metal powder near the surface of the element and a second metal layer formed by plating on the first metal layer. The electrical resistivity of the second metal layer is lower than the electrical resistivity of the first metal layer.

METHOD FOR CONTINUOUS MANUFACTURING OF PERMANENT MAGNETS
20230062147 · 2023-03-02 · ·

A method for continuous manufacture of permanent magnets. A material sheet is formed into an open tube, having a lengthwise opening. Magnetic powder may be poured into the lengthwise opening on a continuous basis. The tube opening is then formed closed and sealed. The magnetic powder is magnetically pre-aligned by subjecting it to a first magnetic field. The tube containing the powder may be compressed into a desired shape, forming an elongated permanent magnet. After compression, the elongated magnet is magnetized by a second magnetic field in two-step process, wherein the elongated permanent magnet is subjected to a magnetic field from first magnetizing coil that is pulsed with a first electric current in a first direction, followed by a second magnetizing coil being pulsed with a second magnetizing electric current in a second direction. The elongated magnet may be formed into any arbitrary shape, such as a ring or coil.

Sintered oil-impregnated bearing
11648611 · 2023-05-16 · ·

Provided is a novel sintered oil-impregnated bearing superior in wear resistance and cost performance under a severe use condition where the bearing collides with a shaft due to a high load and vibration, such as a condition associated with an output shaft of an electric motor installed in a vehicle and a wiper motor installed therein. The sintered oil-impregnated bearing contains: 15 to 30% by mass of Cu; 1 to 4% by mass of C; and a remainder consisting of Fe and inevitable impurities, in which a metal structure with copper being melted therein is provided at least on a bearing surface; pearlite or a pearlite with ferrite being partially scattered therein is provided in a matrix; a copper-rich phase arranged in a mesh-like manner is also provided in the matrix; and a free graphite is dispersed and distributed in the matrix as well.

PUMP FILTER WITH PREDETERMINED SWIRL
20230173420 · 2023-06-08 ·

A lattice filter for use in an inlet housing of a pump assembly including a lattice filter body extending from a filter inlet end to a filter outlet end. The lattice filter having a lattice structure. The lattice filter also includes one or more passageways within the lattice filter body. Each of the one or more passageways includes a passageway inlet located at the filter inlet end and a passageway outlet located at the filter outlet end. Each of the one or more passageways extend from the passageway inlet to the passageway outlet.

PUMP FILTER WITH PREDETERMINED SWIRL
20230173420 · 2023-06-08 ·

A lattice filter for use in an inlet housing of a pump assembly including a lattice filter body extending from a filter inlet end to a filter outlet end. The lattice filter having a lattice structure. The lattice filter also includes one or more passageways within the lattice filter body. Each of the one or more passageways includes a passageway inlet located at the filter inlet end and a passageway outlet located at the filter outlet end. Each of the one or more passageways extend from the passageway inlet to the passageway outlet.

IMPELLER DESIGN AND MANUFACTURING METHOD WITH PENTAGONAL CHANNEL GEOMETRY

An impeller includes a body with an interior channel extending through the body along a centerline axis of the impeller. A plurality of blades is connected to the body on a forward end of the impeller centerline axis. The plurality of blades surrounds the interior channel and is fluidly connected to an array of inlets. An array of pentagonal channels extends through the body and radially outward in a spiral pattern. Each pentagonal channel is fluidly connected to a corresponding vane inlet and a corresponding pentagonal-shaped outlet. Each channel maintains a pentagonal cross-section shape from the inlet to the outlet. Each downward-sloping face of the cross section is more than 35 degrees from a horizontal plane perpendicular to the centerline axis of the impeller.

IMPELLER DESIGN AND MANUFACTURING METHOD WITH PENTAGONAL CHANNEL GEOMETRY

An impeller includes a body with an interior channel extending through the body along a centerline axis of the impeller. A plurality of blades is connected to the body on a forward end of the impeller centerline axis. The plurality of blades surrounds the interior channel and is fluidly connected to an array of inlets. An array of pentagonal channels extends through the body and radially outward in a spiral pattern. Each pentagonal channel is fluidly connected to a corresponding vane inlet and a corresponding pentagonal-shaped outlet. Each channel maintains a pentagonal cross-section shape from the inlet to the outlet. Each downward-sloping face of the cross section is more than 35 degrees from a horizontal plane perpendicular to the centerline axis of the impeller.

Method for jetting droplets of an electrically conductive fluid

In a method for jetting a droplet of an electrically conductive fluid, a Lorentz force is generated in the electrically conductive fluid. The Lorentz force is directed into an actuation direction. The actuation direction is a direction opposite to the droplet ejection direction. A jetting device is provided for printing a droplet of an electrically conductive fluid.

COUNTER SPIRAL TUBE AND SHELL HEAT EXCHANGER
20170227293 · 2017-08-10 ·

A heat exchanger has an outer shell enclosing an inner chamber and extending between a first inlet and a first outlet. The chamber receives a separating wall. The shell extends between axial ends, and generally along a helix. The helix is defined with the wall moving in a continuous manner along a first axial direction and with a circumferential component between the first inlet and the first outlet. A plurality of tubes extend through openings in the separating wall and generally along a helix. The plurality of tubes extend from a second inlet and a second outlet, and with the helix defined along the first axial direction and with a component in a circumferential direction. A method and a temperature control system are also disclosed.

COUNTER SPIRAL TUBE AND SHELL HEAT EXCHANGER
20170227293 · 2017-08-10 ·

A heat exchanger has an outer shell enclosing an inner chamber and extending between a first inlet and a first outlet. The chamber receives a separating wall. The shell extends between axial ends, and generally along a helix. The helix is defined with the wall moving in a continuous manner along a first axial direction and with a circumferential component between the first inlet and the first outlet. A plurality of tubes extend through openings in the separating wall and generally along a helix. The plurality of tubes extend from a second inlet and a second outlet, and with the helix defined along the first axial direction and with a component in a circumferential direction. A method and a temperature control system are also disclosed.