Friction dampener particularly adapted to railway vehicle motion control
AssigneeKasgro Rail Corp.
InventorDonald Wiebe
Life of this patent
Estimating the term…
Abstract
A friction dampener can include a housing having one end slidably surrounding one end of a shaft movable relative thereto. Opposing ends of the housing and shaft can each having a connecting eye member for connection to separate independently movable elements. One or more friction elements can be carried by the shaft which frictionally engage inner surfaces of the housing. The friction elements can have inner and outer portions having different material properties. The housing can be adapted to generally maintain the pressure between the friction elements and the housing within a range of desirable pressures.
Claims43
A friction dampener for interposition between separate independently movable elements which are expected to undergo relative displacements, said friction dampener comprising:
- a. a housing having a first connecting member for connection to a first independently movable element;
- b. a shaft having a first end slidably disposed in said housing and an opposite end having a second connecting member for connection to a second independently movable element;
- c. at least one friction element carried by said shaft in contact with and frictionally engaging said housing;
- and
- d. said housing configured to compensate for thermal expansion and generally maintain pressure between said at least one friction element and said housing within a range of desired pressures.
At least one yaw dampener for a controlling hunting of a railway vehicle truck assembly, each said yaw dampener comprising:
- a. a housing having a first connecting member for connection to a first independently movable element;
- b. a shaft having a first end slidably disposed in said housing and an opposite end having a second connecting member for connection to a second independently movable element;
- c. at least one friction element carried by said shaft in contact with and frictionally engaging said housing;
- and
- d. said housing configured to compensate for thermal expansion and generally maintain pressure between said at least one friction element and said housing within a range of desired pressures.
Dependencies are inferred from the claim text.