3results about How to "Improved directional stability" patented technology

The application relates to the technical field of automobile brake devices, and discloses a car brake disc device, which comprises a reference frame, an inner support fixedly installed in the inner cavity of the reference frame, a disc brake mechanism arranged on the reference frame and the inner support, the disc brake mechanism being used for adsorptive braking of a vehicle, a closing mechanism arranged on the reference frame, and the closing mechanism being used for closed protection of the disc brake mechanism. Through the design of the reference frame, the inner support, the disc brake mechanism and an air source mechanism, the device can be started under emergency working conditions, a pushing assembly can be extended downwards, the hollow plate can be pushed downwards as a whole, the disc body can be tightly pressed on the road surface, a vacuum pump can be driven to work, air in the disc body is extracted to form stable negative pressure, the disc body can be firmly adsorbed on the ground, strong braking resistance can be additionally provided by virtue of the negative pressure adsorption force, and the defect of insufficient tire grip on low adhesion road surfaces can be effectively compensated.

This invention discloses a short takeoff / vertical landing (STOVL) aircraft with a hybrid propulsion system. It employs a fuselage frame as the main load-bearing structure, combined with an aerodynamic layout of all-moving canards, main wings, mid-section wings, and twin vertical tails. The hybrid propulsion system comprises four sets of cross-rotating motor-propellers and thrust-direction-adjustable STOVL level flight engines. The engines operate throughout the entire flight, while the motor-propellers are only engaged during STOVL and mode switching. Through linear adjustment of motor power, coordinated changes in engine thrust direction and magnitude, and speed-dependent aerodynamic lift of the wings, seamless and smooth transitions are achieved between STOVL / hovering, mode switching, high-speed level flight, and payload modes. Compared to existing technologies, this design reduces structural dead weight and control complexity, extends endurance, and balances STOVL flexibility with high-speed cruise efficiency.