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US 12,687,213 B2Granted
Muffler device for a bicycle suspension system
AssigneeSram, LLC
InventorsShu-Wei Ho, Wei-Kai Liao
Life of this patent
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Abstract
A muffler device for use in a bicycle suspension system that has an axis is presented. The device includes a flow path permitting a pressurized fluid to flow therethrough, and a muffler member having a porous surface that at least partially defines the flow path. The device is provided to dampen the acoustic energy of the system.
Claims15
A muffler device adapted for use in a bicycle suspension system, the muffler device comprising:
- a flow path permitting a damping fluid to flow therethrough from a second chamber to a first chamber during a rebound action;
- and
- a muffler member comprising:
- a porous surface that at least partially defines the flow path;
- and
- an exit opening defining an open dimension into the first chamber;
- wherein the flow path comprises:
- a porous path portion defined by the porous surface of the muffler member;
- and
- a guide path portion disposed upstream of the porous path portion, the guide path portion having a first flow open dimension at a first point adjacent to the porous path portion that is greater than a minimum flow open dimension within the porous path portion, and a second flow open dimension at a second point upstream of the first point that is smaller than the first flow open dimension.
7 more elements
A damper module for a bicycle, the damper module comprising:
- a movable damping piston defining a first chamber and a second chamber at two opposites thereof;
- and
- a muffler device defining a flow path in a rebound direction between the first chamber and the second chamber, the muffler device comprising a muffler member having a porous surface that at least partially defines the flow path and an exit opening defining an open dimension into the first chamber;
- wherein the flow path comprises:
- a porous path portion defined by the porous surface of the muffler member, the porous path portion defining a minimum flow dimension;
- and
- a guide path portion disposed upstream of the porous path portion, wherein the guide path portion comprises:
- a first flow open dimension at a first point adjacent to the porous path portion that is greater than the minimum flow dimension of the porous path portion;
- and
- a second flow open dimension at a second point upstream of the first point that is smaller than the first flow open dimension.
7 more elements
A muffler device for use in a bicycle suspension system, the muffler device comprising:
- a flow path permitting a pressurized fluid to flow therethrough, the flow path comprising:
- a porous path portion defined by the porous surface of the muffler member, the porous path portion defining a minimum flow open dimension;
- and
- a guide path portion disposed upstream of the porous path portion, wherein the guide path portion comprises:
- a first flow open dimension at a first point adjacent to the porous path portion that is greater than the minimum flow open dimension of the porous path portion;
- a second flow open dimension at a second point upstream of the first point that is smaller than the first flow open dimension;
- and
- a muffler member having a porous surface that at least partially defines the flow path.
5 more elements
Dependencies are inferred from the claim text.