Railway hydraulic stabilizer
OwnerJames S. Kennedy, Herman C. Ruhlmaninventors
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Abstract
A hydraulic stabilizer for a railway freight car truck, the truck having a bolster and side frames each respectively supporting at least one railway axle/wheel set. The hydraulic stabilizer being contained within the area of the spring set between the bolster and the side frame, and having a working cylinder and piston contained within a housing. The device having a rod seal affixed intermediate said cylinder and said piston; and an oil seal affixed intermediate said cylinder and said piston. The oil seal having at least two lip profiles extending radially inward to said cylinder.
Claims13
A hydraulic stabilizer for a railway freight car truck, the truck comprising a bolster and side frames supporting at least one railway axle/wheel set, the hydraulic stabilizer being contained within the area of the spring set between the bolster and an side frame, said hydraulic stabilizer comprising:
- a housing;
- said housing having a hydraulic fluid reservoir;
- a hydraulic cylinder at least partially contained within said housing;
- a working piston generally aligned within said cylinder having a piston rod for axial movement within said cylinder to dampen relative movement between said bolster and said side frame;
- an oil seal affixed intermediate said cylinder and said piston rod;
- and
- said oil seal having at least two lip profiles extending radially inward of said cylinder.
Dependencies are inferred from the claim text.