Frequency sensitive shock absorber
AssigneePerformance Machine, Inc.
InventorsTroy Joseph Henige, Ryan Kenneth Raker
Life of this patent
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Abstract
A shock absorber is disclosed herein with a frequency sensitive damping force that includes a cylinder containing a damping medium, a piston rod which is axially movable in the cylinder, and a piston assembly arranged for axial movement in the damping medium. The piston assembly is connected to the piston rod and divides the cylinder in a working space on each side of the piston. The piston assembly includes a flow path fluidly coupled to a frequency sensitive element movable relative to the piston assembly.
Claims9
A frequency sensitive shock absorber, comprising:
- a cylinder containing a damping medium;
- a piston rod positioned for axial movement within the cylinder along a central axis;
- a piston assembly coupled to the piston rod and arranged for axial movement in the damping medium along the central axis to separate the cylinder into a first working space on a first side of the piston assembly and a second working space on a second side of the piston assembly, the piston assembly including:
- a first flow path allowing flow of the damping medium therein, the first flow path extending between the first side and the second side;
- a second flow path distinct from the first flow path, allowing flow of the damping medium therein, the second flow path extending between the first side and the second side and defining a first opening that is fluidly coupled with the first working space and a second opening that is fluidly coupled with the second working space;
- and
- a movable element positioned in the second flow path and movable along the second flow path with respect to the piston assembly between a first position in which the movable element blocks flow through the first opening and a second position in which the movable element blocks flow through the second opening, and the movable element is positionable at an intermediate position allowing flow through both of the first and second openings.
A frequency sensitive shock absorber, comprising:
- a cylinder containing a damping medium;
- a piston rod positioned for axial movement within the cylinder along a central axis;
- a piston assembly coupled to the piston rod and arranged for axial movement in the damping medium along the central axis to separate the cylinder into first working space on a first side of the piston assembly and a second working space on a second side of the piston assembly, the piston assembly including:
- a channel arranged to allow flow of the damping medium therein, the channel extending between the first side and the second side;
- a fluid chamber including a first opening in fluid communication with the first working space and a second opening in fluid communication with the second working space;
- and
- a movable element arranged within the fluid chamber to separate the chamber into a first chamber section and a second chamber section, the moveable element being moveable along the fluid chamber with respect to the piston assembly between a first position in which the movable element blocks flow through the first opening and a second position in which the movable element blocks flow through the second opening, and the movable element is positionable at an intermediate position allowing flow through both of the first and second openings.
Dependencies are inferred from the claim text.