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Japan Aerospace Exploration Agency patents


Recent patent applications related to Japan Aerospace Exploration Agency. Japan Aerospace Exploration Agency is listed as an Agent/Assignee. Note: Japan Aerospace Exploration Agency may have other listings under different names/spellings. We're not affiliated with Japan Aerospace Exploration Agency, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "J" | Japan Aerospace Exploration Agency-related inventors


Wing, flap, and aircraft

The present invention is directed to reducing noise resulting from a wing tip vortex of a wing such as a flap. A flap of an aircraft includes a flap main body provided to a parent wing in a deployable manner, and a vortex generation portion including a protruding member, the protruding member being provided to protrude from an upper surface at least at an end of the flap main body on an outboard side in a span direction and forming a predetermined angle to an axial direction of the aircraft. ... Japan Aerospace Exploration Agency

Flap and aircraft

A flap of an aircraft includes a flap body that is provided deployably with respect to a main wing, an inclined portion that protrudes from an upper surface of a tip part on at least an outboard side in a span direction of the flap body and is inclined with respect to an aircraft axis direction, and a protruding portion that smoothly protrudes from a lower surface of the tip part on at least the outboard side. A rear end of the inclined portion is located closer to a side end edge of the tip part in the span direction of the flap body than a virtual line that passes through a front end of the inclined portion and is parallel to the aircraft axis direction.. ... Japan Aerospace Exploration Agency

Electrified aircraft and method of controlling regenerative electric power of electrified aircraft

To provide an electrified aircraft, and a method of controlling a regenerative electric power of the electrified aircraft where a path angle and a descending rate can be controlled with a good response independently from a speed while controlling the drag force of the propulsion drive system and where it is possible to maximize safely a generated electric power in each flight status at the time of descent or ascent. The electrified aircraft includes a propeller or a fan for propulsion; an electric drive motor for rotary-driving the propeller or the fan and for generating an electric power by the rotation of the propeller or the fan; and an estimation unit for estimating a drag force of the propeller or the fan or an electric power generation amount of the electric drive motor based on propulsion system parameters of the electric drive motor.. ... Japan Aerospace Exploration Agency

Cooling mechanism of combustion chamber, rocket engine having cooling mechanism, and method of manufacturing cooling mechanism

A cooling mechanism includes a bottom wall (22) in contact with a combustion chamber, an upper wall (30), and a cooling passage (40) arranged between the bottom wall (22) and the upper wall (30). The cooling passage (40) includes a first passage (50) extending to a first direction, a second passage (60) extending to the first direction, and a connection section (70) connected with the first passage (50) and the second passage (60). ... Japan Aerospace Exploration Agency

Jet system

Provided is a jet system capable of regulating a pressure of a jet substance without using any high-pressure gas supply subsystem. In a storage section for storing therein a jet substance such as fuel or oxidizer, a pressurizing substance such as liquefied gas is stored in addition to the jet substance, to enable the jet substance to be supplied from the storage section according to pressurization from the pressurizing substance. ... Japan Aerospace Exploration Agency

Detector for compton camera and compton camera

A detector for a compton camera includes a first radiation scattering layer; a second radiation scattering layer; and a radiation absorption layer disposed between the first radiation scattering layer and the second radiation scattering layer. The first radiation scattering layer and the radiation absorption layer configure at least a part of a first detector, and the second radiation scattering layer and the radiation absorption layer configure at least a part of a second detector.. ... Japan Aerospace Exploration Agency

Motorized aircraft and method for determining output and number of electric motors in motorized aircraft

A motorized aircraft is controlled by a drive control means (120) that rotationally drives a propulsion system propeller. The propulsion system propeller is driven by a plurality of electric motors (130). ... Japan Aerospace Exploration Agency

Fuel injection device

A fuel injection device includes: a pilot fuel injector disposed at a radially center position; a main fuel injector having an annular shape and disposed so as to encircle the pilot fuel injector; a fuel injection portion that injects a fuel into a combustion chamber; a fuel supply unit that supplies a fuel to the fuel injection portion; a fuel introduction portion secured to a combustor housing that has the combustion chamber therein and introduces a fuel into the fuel supply unit; and an injector housing that is supported by the fuel introduction portion and covers front portions of the pilot fuel injector and the main fuel injector. The fuel supply unit has a base supported by the fuel introduction portion, and an annular body supported by the injector housing via a support pin so as to be radially movable relative to the injector housing.. ... Japan Aerospace Exploration Agency

Fuel injection device

A fuel injection device for a gas turbine combustor includes: a pilot fuel injector; a main fuel injector; a plurality of main fuel injection holes arranged in the main fuel injector to inject the fuel rearward; a main fuel injection nozzle to guide the fuel to a main air passage, protruding rearward from a circumference of the main fuel injection hole into the opening formed in a passage wall that forms the main air passage; a heat-shielding casing covering the main fuel injector; and a ring member interposed in an axial gap between the passage wall and the heat-shielding casing. The ring member covers a through-hole gap between the main fuel injection nozzle and a through-hole in the heat-shielding casing, and has a purge passage communicated with the opening to introduce air into the main air passage.. ... Japan Aerospace Exploration Agency

Rigid wheel and grouser designs for off-road mobility

. . A wheel includes a circular wheel main body and at least one grouser. The at least one grouser is provided along an outer circumference of the wheel main body and has a contact surface capable of drawing a first tangent line. ... Japan Aerospace Exploration Agency

Vapor jet system enabling jetting for many seconds using multiple kinds of mutually insoluble liquid gases as fuel

A vapor jet system to continuously jet vapors while suppressing cavitation. One vapor jet system includes a liquid storage part for separately storing two or more kinds of mutually insoluble liquids; a jet orifice; and a jet control part. ... Japan Aerospace Exploration Agency

Vapor jet system

A vapor jet system includes a container for storing a sublimable solid, the container having a vapor discharge port for discharging vapor generated by sublimation of the sublimable solid; a member having an opening for jetting out the vapor to the outside of the vapor jet system; a vapor flow path between the vapor discharge port and the opening; and a filter for preventing passage of the sublimable solid and allowing the vapor to pass through, the filter being provided to the vapor flow path.. . ... Japan Aerospace Exploration Agency








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