摘要:
Disclosed is a hydraulic stopper of a shock absorber. The shock absorber includes a cylinder and a piston rod having a piston valve. The stopper includes a closing member at one side of the piston rod to protect the piston valve, a free piston movable between the closing member and the rod guide to define a fluid passage with the piston rod, a sealing member between the free piston and the cylinder, and a rebound spring between the free piston and the rod guide to elastically support the free piston such that the free piston comes into close contact with the closing member to block the fluid passage when the piston rod moves excessively upward. The stopper may generate buffering effect using oil pressure without being restricted by the length of a rod guide, applied to a general shock absorber, and permit components thereof to be shared with the general shock absorber.
摘要:
A method and apparatus for adjusting the sag setting of a vehicle suspension are disclosed. An integrated damper/gas spring shock absorber includes a bleed port located at a position on a gas spring cylinder corresponding to a desired sag setting. The gas spring may be over pressurized to a pressure above the expected operating pressure of the gas spring. The vehicle may then be loaded with the normal operating load, partially compressing the shock absorber. Opening the bleed port allows gas to vent from the gas spring, further compressing the shock absorber until a piston in the gas spring closes the bleed port from the inner surface of the gas spring cylinder. A sleeve may be inserted over the gas spring cylinder, the sleeve including one or more sealing elements that seal the bleed port from the outer surface of the gas spring cylinder during normal operation.
摘要:
A momentum free bearing assembly for use in orthotic and prosthetic devices and a prosthetic knee incorporating the same are disclosed. The bearing assembly includes an engaging ring having a swivel portion received within the engaging ring. The engaging ring is received within a bore in a mount. Retainer rings may be placed on either side of the engaging ring within the bore to retain the engaging ring within the mount. Seals having sealing members may be provided on either side of the engaging ring to seal the engaging ring within the mount. A cylindrical rod engages the swivel portion and the seal through bores provided in each of the seal and the swivel portion. The ends of the cylindrical rod can be press-fit within bores on a mount and a frame of a prosthetic knee.
摘要:
An extension valve for an impact dispersal system that includes an extendable member. The extension valve includes an actuating port that operates a first piston connected to a second piston. The second piston has a seat that isolates an inlet and an outlet. When a fluid with a specified pressure is applied to said actuating port, the first piston overcomes a preset bias and causes said second piston to move to an unseated position, which allows fluid communication between the inlet and outlet ports. With a pressurized tank connected to the inlet port, actuation of the extension valve causes a pressurized fluid to flow through the extension valve, through a check valve, and into a fluid chamber in a cylinder, thereby causing a cylinder piston to extend into an impact ready position.
摘要:
A retard device (100, 100′) for a hybrid system (2) is provided. The retard device (100, 100′) includes a housing (102, 102′) having a first end (104, 104′) and a second end (106, 106′). The first end (104, 104) has a system inlet (108, 108) and the second end (106, 106) has an aperture (110, 110′). A piston assembly (112, 112′) is slidably disposed in the aperture (110, 110′) of the housing (102, 102′). The piston assembly (112, 112′) includes a piston head (114, 114′) coupled to an actuating linkage (116, 116). The piston head (114, 114′) is disposed adjacent the system inlet (108, 108) and the actuating linkage (116, 116′) is disposed through the aperture (110, 110) of the housing (102, 102′). A spring (126, 126) is disposed within the housing (102, 102′) between the second end (106, 106′) and the piston head (114, 114′). The piston head (114, 114′) is biased toward the first end (104, 104′) by the spring (126, 126′) and biased toward the second end (106, 106′) by a force applied at the system inlet (108, 108′). A hybrid system (2) and method of using the retard device (100, 100′) are also provided.
摘要:
The invention relates to a damping mechanism for folding seats in chairs, having an application in seats (1) incorporated in an articulated assembly by means of shafts (2), with springs (4) which act in the sense that they tilt the seat towards a vertical folded position, incorporating in each shaft (2) an eccentric cam (5) on which there is supported a damping piston which exerts retention action for smoothing the upward rotation of the seat by the action of the springs (4).
摘要:
A personal watercraft has a hull and sub-deck (HSD) assembly, a deck above the sub-deck, and a suspension member pivotally connected therebetween. A suspension element, including a spring assembly, is connected between any two of the deck, the HSD assembly, and the suspension member. The spring assembly has first and second portions having first and second spring rates respectively. The second spring rate is greater than the first. A controller controls a lifting device to set an initial distance between the deck and the sub-deck to one of a first distance and a second distance greater than the first. The suspension element moves through a majority of a full stroke with the first portion of the spring assembly at least partially expanded when the initial distance is the first distance, and with the first portion of the spring assembly fully compressed when the initial distance is the second distance.
摘要:
A momentum free bearing assembly for use in orthotic and prosthetic devices and a prosthetic knee incorporating the same are disclosed. The bearing assembly includes an engaging ring having a swivel portion received within the engaging ring. The engaging ring is received within a bore in a mount. Retainer rings may be placed on either side of the engaging ring within the bore to retain the engaging ring within the mount. Seals having sealing members may be provided on either side of the engaging ring to seal the engaging ring within the mount. A cylindrical rod engages the swivel portion and the seal through bores provided in each of the seal and the swivel portion. The ends of the cylindrical rod can be press-fit within bores on a mount and a frame of a prosthetic knee.
摘要:
The invention relates to a telescopic actuator comprising a cylinder in which a main rod is mounted to slide telescopically along a sliding axis between a retracted position and an extended position. The actuator includes an auxiliary rod mounted to slide telescopically in the main rod along said sliding axis between a retracted position and an extended position, the actuator including controlled retaining means for retaining the auxiliary rod in the retracted position inside the main rod.
摘要:
Apparatus are provided for a damping system. The system includes a housing having an inner surface defining a passage therethrough, a first bellows disposed within the passage, the first bellows having an outer surface and spaced apart from the housing inner surface to define a first chamber having a volume, a second bellows disposed within the passage, the second bellows having an outer surface and spaced apart from the housing inner surface to define a second chamber having a volume, a restrictive flow passage in fluid communication with the first and second chambers, fluid disposed within the first chamber, the second chamber, and the restrictive flow passage, and a piston coupled to the second bellows and disposed at least partially within the restrictive flow passage, the piston configured to selectively receive a force to thereby move the piston through the housing passage.