Brakes – Internal-resistance motion retarder – Position of thrust member relative to chamber
Patent
1974-11-21
1976-07-06
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Position of thrust member relative to chamber
188298, 188315, 188318, F16F 919, F16F 948
Patent
active
039677079
ABSTRACT:
A liquid damper comprises a piston head which slides within a cylinder and which is carried by a piston rod which slides within an annular gland at one end of the cylinder. A passage which includes a damping valve connects the annular cylinder space to a liquid reservoir so that liquid displaced from the annular cylinder space by movement of the piston in either direction is fed through the damping valve to the liquid reservoir. The liquid reservoir is connected to the other cylinder space through a non-return valve. A groove which varies in area along its length, extends partway along the piston rod. When the groove extends through the annular gland, some of the liquid displaced from the annular cylinder space is directed to the reservoir which surrounds the cylinder through the groove which thereby functions as a by-pass around the damping valve for that liquid so that the damping characteristics of the damper, which are related to the resistance to flow through the damping valve that is offered by that valve, is dependent upon the position of the piston head within the cylinder. The piston rod is connected to the outer wall of the reservoir by a convoluted bellows and a radially deformable annular membrane. The groove may be helical and may be one of a number of such grooves.
REFERENCES:
patent: 2107974 (1938-02-01), Bechereau et al.
patent: 3076643 (1963-02-01), Bittel
Halvosa George E. A.
Oleo International Holdings Limited
LandOfFree
Liquid dampers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid dampers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid dampers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1529192