2results about How to "Guaranteed vibration isolation performance" patented technology

The application provides an oil-gas suspension cylinder, an oil-gas suspension system and a vehicle, and belongs to the technical field of vehicles.The oil-gas suspension cylinder comprises a cylinder barrel which is a hollow cavity with openings at both ends, two piston rods with different cross-sectional areas are arranged at both ends of the cylinder barrel, a partition plate is arranged in the cylinder barrel, the partition plate divides the inside of the cylinder barrel into two independent first chambers, and the two piston rods are arranged in the two independent first chambers respectively; a second chamber and a fixed damper are arranged on the piston rod, and the fixed damper enables the second chamber to communicate with the first chamber. The double-piston rod with different cross-sectional areas is arranged, the large-diameter end is used as a heavy-load piston rod, and the small-diameter end is used as an empty-load piston rod; the empty-load piston rod can improve the pressure during empty-load operation due to the small cross-sectional area, so that the pressure is greater than the starting pressure of the suspension cylinder, the suspension cylinder is convenient to debug, and the problem that the diameter is too large due to the design according to the full-load load, resulting in extremely low empty-load pressure is solved.

The invention discloses a variable damping hydraulic torsion damper suitable for a hybrid power vehicle, and belongs to the technical field of mechanical vibration control. The shell is connected with a driving side, a spring mounting window and an oil duct are arranged on a driving disc cover, the hub is connected with a driven side, an internal spline is arranged on a central shaft of a driven disc hub, so that the central shaft is connected with a power output shaft, a spring mounting window and a limiting bump are arranged on the central shaft, and a closed annular cavity oil duct is formed between the disc cover and the disc hub. A floating damping ring is arranged between every two adjacent limiting protruding blocks, the cavity is filled with viscous fluid damping media, and a throttling valve of a one-way valve structure is arranged in the annular cavity to control throttling output. Damping springs are installed in windows of the disc cover and the disc hub, and spring guide rods are placed on the two sides of the damping springs to form a damping device. The disc cover and the disc hub are sealed through a framework oil seal. The invention particularly discloses a high-elasticity vibration damper with a spring-mass system and a separately arranged hydraulic vibration damping system.