Brother Kogyo Kabushiki-Kaisha

Mitsubishi Aircraft Corporation

Buffalo Inc.

Basf Se Corporation

Osamu Yamada

Hisaaki Yamane

Nobuhide Hara

Takuo Oda

Munehiro Suzuki

Kunio Kohsaka

Atsuo Nakahata

Masahiro Kohda

Junji Inoue

Shingo Fujii

A system includes a device management apparatus. The device management apparatus includes: one or more memories; and one or more processors. The one or more processors are configured to: store user group information that defines at least one user group, each user group being a group of one or more users; store device group definition information that defines at least one device group in association with at least one user group, each device group being a group of one or more network devices; store authority information of each device group associated with at least one user group; store association information that associates each of the network devices to be objects of management with at least one of the device groups; and determine whether to permit a user operation related to a network device belonging to a device group based on the authority information of each of the device groups.

Device management system, network device, device management method, and computer-readable medium

To prevent overheating of a structural member such as a pivot bulkhead facing a rear side of a fire wall to maintain the temperature of the structural member at allowable temperature or lower. An aircraft of the present invention includes: a fire wall resistant to flame; a structural member facing a rear side of the fire wall; and a skin surrounding the fire wall and the structural member. The structural member includes a guide member and a heat shielding member. The structural member guides, upward, air existing on the rear side of the fire wall, and the heat shielding member shields the guide member from heat radiated by the fire wall.

Aircraft, tail cone, and fuselage of aircraft

A structure for anti-adhesion of high-temperature air according to the present invention includes: a high-temperature air duct that is provided in an accessory of an aircraft and allows high-temperature air likely to be higher than a specified temperature to flow through the high-temperature air duct; an exhaust port that discharges a flow of the high-temperature air led through the high-temperature air duct, to an outside of the airframe; and a low-temperature air supplying part that supplies a flow of low-temperature air lower in temperature than the high-temperature air discharged to the outside of the airframe, to an airframe surface. The low-temperature air supplying part is configured to form an air layer made of a flow of low-temperature air between the high-temperature air that is bent toward the airframe surface in flight of the aircraft, and the an airframe surface.

Structure for anti-adhesion of high-temperature air to airframe, and aircraft

Under constraints on the space and the weight of an aircraft, the present invention aims to protect structural members from a heat generation part. An aircraft includes: a fuselage; an air conditioning pack installed on the outside of a lower part of the fuselage; a fairing covering the air conditioning pack; an outer heat insulation material disposed in a region of the fuselage, which corresponds to the air conditioning pack, from the outside of the fuselage; and an inner heat insulation material disposed around the region on the inside of the fuselage.

Aircraft and fuselage cooling structure

The plasma cutting device of the present invention comprises a plurality of release ports for releasing the work gas to prevent adverse influence on the cutting processing besides the exhaust port for jetting the gas toward the work. Accordingly the flow rate and velocity of the swirl flow are increased and the flow rate of the jet gas is still kept the same as that in the conventional device, resulting in stabilizing the plasma arc and performing superior cutting.

Plasma cutting device

A plasma arc workpiece cutting device having means for removing a deposited material deposited onto a nozzle of a plasma torch. During plasma arc cutting operation, molten spatters may be directed toward the plasma torch and may be adhered onto the nozzle. The deposited material is removed by way for removing the deposited material. At every proper intervals, the plasma torch is moved toward the removing structure, and the deposited material is brought into sliding contact therewith in order to frictionally remove the deposited material from the nozzle. A control system is provided for moving the plasma torch at every proper timings so as to perform the deposited material removing operation.

Plasma arc cutting device having metal deposition removal function and

A plasma-arc cutting apparatus having a plasma torch producing a plasma arc and cutting a workpiece with the plasma arc, the plasma torch including a nozzle from whcih the plasma arc is ejected toward the workpiece; a feed device moving the plasma torch relative to the workpiece; a magnetic-field forming device producing a magnetic filed, and applying the magnetic field to the plasma arc so as to intersect the plasma arc and thereby deflect the arc; a first control device numerically controlling the feed device according to cutting operation information, the cutting operation information including cutting path data representative of a predetermined curved cutting path along which the plasma torch is moved over the workpiece, the first control means providing torch position data representative of a current position of the plasma torch relative to the workpiece; and a second control device controlling the magnetic-field forming device according to the cutting operation information and the torch position data so that the plasma arc is deflected to an optimum direction with respect to a direction of movement from the current position of the plasma torch as the plasma torch is moved along the curved cutting path.

Plasma-arc cutting apparatus having means for deflecting plasma arc

In a plasma cutting apparatus for cutting a workpiece with a plasma arc, a cutting torch moves relative to the workpiece. The cutting torch produces plasma arc in accordance with a cutting current supplied thereto. To improve surface roughness of the cut facet of the workpiece, a pulsating current is superimposed on a D.C. current to provide the cutting current, wherein the frequency of the pulsating current is controlled in accordance with the moving speed of the cutting torch.

Growing community of inventors

Aichi, Japan

Osamu Yamada