Vehicle suspension system
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorKouji Sakai
Life of this patent
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Abstract
A vehicle is carried by a number of supporting members, such as wheels. Movement between the supporting members and the vehicle body is controlled by respective dampers. Several interrelationships between and among the dampers are disclosed. A flow regulator is provided to augment damping forces under a variety of operating conditions.
Claims40
A suspension system for a four wheeled vehicle, said suspension system comprising a first damper, a second damper, a third damper and a fourth damper, each of said dampers comprising a cylinder body and a piston arranged to reciprocate within said damper, each piston dividing an interior of each cylinder body into an upper chamber and a lower chamber, each piston also comprising a connecting passage that places said upper chamber and said lower chamber in fluid communication, said lower chamber of said first damper and said lower chamber of said second damper being interconnected with a pressure regulator, said pressure regulator comprising a first pressure regulating chamber and a second pressure regulating chamber, a first movable wall defining at least a portion of said first pressure regulating chamber and a second movable wall defining at least a portion of said second pressure regulating chamber, said lower chamber of said first damper being connected to said first pressure regulating chamber and said lower chamber of said second damper being connected to said second pressure regulating chamber, a passage extending between said first pressure regulating chamber and said second pressure regulating chamber, said pressure regulator further comprising a third pressure regulating chamber, said third pressure regulating chamber being connected with said third damper and said fourth damper through at least a first conduit, a flow regulator being disposed along said first conduit and being in fluid communication with said first conduit, said flow regulator containing a first flow regulating chamber and a second flow regulating chamber, and said first flow regulating chamber and said first conduit communication through a throttled passage.
A suspension system comprising a first damper, a second damper, a third damper and a fourth damper, said first damper and said second damper forming a first damper pair and said third damper and said fourth damper forming a second damper pair, said first damper pair and said second damper pair being fluidly connected through means for regulating flow into and out of said first damper pair and said second damper pair.
A suspension system comprising a first movement restricting portion and a second movement restricting portion, said first movement restricting portion and said second movement restricting portion being interconnected by a fluid passage, a flow regulator being in fluid communication with said fluid passage, said flow regulator having a fluid chamber and a moveable wall.
A suspension system for a four wheeled vehicle, said suspension system comprising a first damper, a second damper, a third damper and a fourth damper, each of said dampers comprising a piston device arranged to act upon fluid within at least two fluid chambers, each of the fluid chambers being in fluidic communication with each other, at least one of the chambers of the first damper and at least one of the chambers of the second damper being interconnected with a pressure regulator, said pressure regulator including a first pressure regulating chamber and a second pressure regulating chamber, a first movable wall defining at least a portion of said first pressure regulating chamber and a second movable wall defining at least a portion of said second pressure regulating chamber, said at least one chamber of said first damper being connected to said first pressure regulating chamber and said at least one chamber of said second damper being connected to said second pressure regulating chamber, a passage extending between said first pressure regulating chamber and said second pressure regulating chamber, said pressure regulator further comprising a third pressure regulating chamber, said third pressure regulating chamber being connected with said third damper and said fourth damper through at least a first conduit, a flow regulator being disposed along said first conduit and being in fluid communication with said first conduit, said flow regulator containing a first flow regulating chamber and a second flow regulating chamber, and said first flow regulating chamber and said first conduit communication through a throttled passage.
Dependencies are inferred from the claim text.