A vehicle-mounted electric oil-free air compressor, including a motor, a box body, a piston, and a flywheel shaft. The motor is fixed on the box body, a cylinder cover is at the top of the box body, a main shaft of the motor includes a coupling driving end, the flywheel shaft is driven by an elastic body to rotate. The piston includes a primary intake valve piece and a primary exhaust valve piece, the box body is provided with a secondary cavity, a secondary exhaust valve piece is provided at a vent hole on one side of the cavity, and the primary exhaust valve piece is also a secondary intake valve piece of the compressor, increasing the exhaust pressure. When the piston reciprocates, the stress is balanced and the vibration is small, and with the assistance of a high-efficiency flywheel, the operation of the air compressor is stable.

A vehicle-mounted electric oil-free air compressor, including a motor, a box body, a piston, and a flywheel shaft. The motor is fixed on the box body, a cylinder cover is at the top of the box body, a main shaft of the motor includes a coupling driving end, the flywheel shaft is driven by an elastic body to rotate. The piston includes a primary intake valve piece and a primary exhaust valve piece, the box body is provided with a secondary cavity, a secondary exhaust valve piece is provided at a vent hole on one side of the cavity, and the primary exhaust valve piece is also a secondary intake valve piece of the compressor, increasing the exhaust pressure. When the piston reciprocates, the stress is balanced and the vibration is small, and with the assistance of a high-efficiency flywheel, the operation of the air compressor is stable.

A gyroscopic roll stabilizer comprises a gimbal having a support frame and enclosure configured to maintain a below-ambient pressure, a flywheel assembly including a flywheel and flywheel shaft, one or more bearings for rotatably mounting the flywheel inside the enclosure, a motor for rotating the flywheel, and bearing cooling system for cooling the bearings supporting the flywheel. The bearing cooling system enables heat generated by the bearings to be transferred through the flywheel shaft to a heat sink disposed within a cavity in the end of the flywheel shaft, or to a liquid coolant circulating within the cavity.

Apparatuses, systems and methods are described for a flywheel system incorporating a rotor made from a high-strength material in an open-core flywheel architecture with a high-temperature superconductive (HTS) bearing technology to achieve the desired high energy density in the flywheel energy storage devices, to obtain superior results and performance, and that eliminates the material growth-matching problem and obviates radial growth and bending mode issues that otherwise occur at various high frequencies and speeds.

A vibration control assembly for an aircraft including a housing operatively coupled to the aircraft. Also included is a cage disposed within an interior region of the housing, the cage rotatable within the housing about a first axis. Further included is a gyroscope wheel disposed within the cage and rotatable about a second axis other than the first axis, wherein a controllable moment is imposed on the aircraft upon rotation of the gyroscope wheel to counter vibratory moments produced by the vehicle.

A damper device is disclosed. The damper device includes first and second rotary members, a plurality of elastic members, and a plurality of end seat members. The first rotary member includes a first engaging portion and an annular chamber filled with a viscous fluid in an interior thereof. The second rotary member includes a second engaging portion, and is rotatable relative to the first rotary member. The plurality of elastic members are aligned in a circumferential direction in the interior of the annular chamber, and elastically couple the first rotary member and the second rotary member in a rotational direction. Each of the plurality of end seat members is disposed between one of the plurality of elastic members and at least one of the first and second engaging portions. The each of the plurality of end seat members includes an end seat communicating groove penetrating therethrough in the circumferential direction.

A damper device is disclosed. The damper device includes first and second rotary members, a plurality of elastic members, and a plurality of end seat members. The first rotary member includes a first engaging portion and an annular chamber filled with a viscous fluid in an interior thereof. The second rotary member includes a second engaging portion, and is rotatable relative to the first rotary member. The plurality of elastic members are aligned in a circumferential direction in the interior of the annular chamber, and elastically couple the first rotary member and the second rotary member in a rotational direction. Each of the plurality of end seat members is disposed between one of the plurality of elastic members and at least one of the first and second engaging portions. The each of the plurality of end seat members includes an end seat communicating groove penetrating therethrough in the circumferential direction.

The flywheel energy storage device (3) comprises a rotor (2) with at least two hubs (11, 12) and a drive (33) for the rotor (2), whereby the rotary element (23) is mounted at least via the first hub (11) with the first journal (21) in a first bearing (31) of the flywheel energy storage device (3), and at least via the second hub (12) with the second journal (22) in a second bearing (32) of the flywheel energy storage device (3), and the rotor (2) can be made to rotate by means of the drive (33) via the first and/or second journals (21, 22), whereby the journals (21, 22) in the rotor (2) are connected to each other exclusively via the hubs (11, 12) and via the rotary element (23).

A method for damping a lateral pendular motion of a single-track motor vehicle having a front wheel, where—the presence of a pendular motion is ascertained, and—the moment of inertia of the front wheel is increased as a function of it.

A method for damping a lateral pendular motion of a single-track motor vehicle having a front wheel, where—the presence of a pendular motion is ascertained, and—the moment of inertia of the front wheel is increased as a function of it.