A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member.

An aircraft landing gear assembly includes a bi-stable, split line tube biased to assume a tubular condition to serve in place of a lock link or side stay and a flexible vessel actuator configured to radially enlarge the tube at a region for folding.

An aircraft landing gear assembly includes a bi-stable, split line tube biased to assume a tubular condition to serve in place of a lock link or side stay and a flexible vessel actuator configured to radially enlarge the tube at a region for folding.

A shock absorber includes a cylinder which is a conductor; a rod inserted into the cylinder from one end side of the cylinder, a suspension spring arranged outside the cylinder, a spring receiver which receives a load of the suspension spring on the one end side of the rod, and a protective member arranged on the one end side of the rod and configured to protect the rod. The protective member has a coil configured to detect a relative position between the cylinder and the protective member, and an end portion formed on the one end side of the protective member is arranged so as not to receive a load from the spring receiver.

The disclosed invention relates to the mechanical engineering industry, in particular, transport, exercise and medical training machines or appliances. The rotary hydraulic damper has a body that is formed by two hermetically connected base members in the form of cups which are directed to each other by their open parts and installed on an axle and are suitable for reciprocal oscillations. Internal surfaces of the body form a cavity in which partitions with transfer holes are installed and divide the cavity into chambers at that one end of each partition is fixed in turn on an internal end face of one or another base member and opposite ends of the partitions remain free. The axle is unloaded and dampening takes place due to oscillations of the base members and transfer of working fluid from one chamber into another.

The disclosed invention relates to the mechanical engineering industry, in particular, transport, exercise and medical training machines or appliances. The rotary hydraulic damper has a body that is formed by two hermetically connected base members in the form of cups which are directed to each other by their open parts and installed on an axle and are suitable for reciprocal oscillations. Internal surfaces of the body form a cavity in which partitions with transfer holes are installed and divide the cavity into chambers at that one end of each partition is fixed in turn on an internal end face of one or another base member and opposite ends of the partitions remain free. The axle is unloaded and dampening takes place due to oscillations of the base members and transfer of working fluid from one chamber into another.

A power strut includes anisotropic damping device that provides different frictional torque on a rotatable member in response to rotation in opposite rotational directions. The anisotropic damping device includes a shell, the rotatable member, and a torsion spring. The shell includes a through hole, and the rotatable member extends through the through hole and is rotatably connected to the shell. The torsion spring is sleeved on the rotatable member and is in interference fit with the rotatable member, and the torsion spring is provided with a first leg fixedly connected to the shell. The rotatable member may include a shaft sleeve fixed to a rotating shaft, with the torsion spring in interference fit with the shaft sleeve.

An apparatus includes at least two disk spring washers, at least one ring-shaped outer spacer coupled to the outer edges of one or two of the disk spring washers, and at least one ring-shaped inner spacer coupled to the inner edges of one or two of the disk spring washers. The apparatus also includes a central shaft concentric with the disk spring washers, the outer spacers, and the inner spacers. The apparatus also includes a bottom attachment portion coupled to the bottom of the central shaft to support the at least two disk spring washers, and a top attachment portion configured to slide vertically along the central shaft. The top attachment portion is configured to, with an application of a downward force, compress the at least two disk spring washers.

A vibration damping device including a vibration-damping device main unit inserted into a mounting space of a bracket from a lateral side and securely supported by the bracket. The bracket includes engaging pieces on respective opposed inside faces of the mounting space, and engaging action of the engaging pieces with respect to respective detent engaging faces formed on a fixture member of the vibration-damping device main unit prevents the vibration-damping device main unit from becoming dislodged from the mounting space of the bracket. Opposed walls of the mounting space are each penetrated by an aperture window, and inspection flat surfaces are separately provided to an outside surface of each engaging piece visible from an outside through the aperture window and a corresponding external side surface of the bracket that is off the aperture window. The inspection flat surfaces are parallel to each other.

A vibration damping device including a vibration-damping device main unit inserted into a mounting space of a bracket from a lateral side and securely supported by the bracket. The bracket includes engaging pieces on respective opposed inside faces of the mounting space, and engaging action of the engaging pieces with respect to respective detent engaging faces formed on a fixture member of the vibration-damping device main unit prevents the vibration-damping device main unit from becoming dislodged from the mounting space of the bracket. Opposed walls of the mounting space are each penetrated by an aperture window, and inspection flat surfaces are separately provided to an outside surface of each engaging piece visible from an outside through the aperture window and a corresponding external side surface of the bracket that is off the aperture window. The inspection flat surfaces are parallel to each other.