Suspension damper
First Claim
1. A suspension damper, comprising:
- an actuator including;
a first housing having a first end and an opposing second end;
a second housing positioned within the first housing and coaxially aligned with the first housing along an axis of the actuator, the second housing having a first end and an opposing second end and defining a passage between the first end and the second end;
a piston slidably positioned within the passage of the second housing to define a first actuator chamber and a second actuator chamber;
a first end cap coupled to the first end of the first housing and the first end of the second housing;
a second end cap coupled to the second end of the first housing and the second end of the second housing;
a piston rod coupled to the piston and extending through an opening defined through the first end cap; and
a divider positioned between an inner surface of the first housing and an outer surface of the second housing to define a third actuator chamber and a fourth actuator chamber, wherein the first actuator chamber is in fluid communication with the third actuator chamber and the second actuator chamber is in fluid communication with the fourth actuator chamber; and
a static fluid damper including;
a first damping chamber;
a second damping chamber in fluid communication with the first damping chamber;
a third damping chamber in fluid communication with the second damping chamber; and
a separating member positioned within the third damping chamber to define a gas chamber;
whereinthe first damping chamber is not in fluid communication with the third damping chamber;
a first flow passage provides fluid communication between the first damping chamber and the third actuator chamber and a second flow passage provides fluid communication between the second damping chamber and the fourth actuator chamber; and
the first actuator chamber, the second actuator chamber, the third actuator chamber, the fourth actuator chamber, the first damping chamber, the second damping chamber, and the third damping chamber are filled with fluid.
1 Assignment
0 Petitions
Accused Products
Abstract
A suspension damper including an actuator and a static fluid damper is provided. The actuator includes a first housing and a second housing positioned within the first housing and coaxially aligned with the first housing along an axis of the actuator. The second housing defines a passage. A piston is slidably positioned within the passage of the second housing to define a first chamber and a second chamber. A divider is positioned between an inner surface of the first housing and an outer surface of the second housing to define a third chamber and a fourth chamber. The static fluid damper includes a first damping chamber, a second damping chamber, and a third damping chamber. A separating member is positioned within the third damping chamber to define a gas chamber. First and second flow passages provide fluid communication between the actuator and the static fluid damper.
27 Citations
20 Claims
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1. A suspension damper, comprising:
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an actuator including; a first housing having a first end and an opposing second end; a second housing positioned within the first housing and coaxially aligned with the first housing along an axis of the actuator, the second housing having a first end and an opposing second end and defining a passage between the first end and the second end; a piston slidably positioned within the passage of the second housing to define a first actuator chamber and a second actuator chamber; a first end cap coupled to the first end of the first housing and the first end of the second housing; a second end cap coupled to the second end of the first housing and the second end of the second housing; a piston rod coupled to the piston and extending through an opening defined through the first end cap; and a divider positioned between an inner surface of the first housing and an outer surface of the second housing to define a third actuator chamber and a fourth actuator chamber, wherein the first actuator chamber is in fluid communication with the third actuator chamber and the second actuator chamber is in fluid communication with the fourth actuator chamber; and a static fluid damper including; a first damping chamber; a second damping chamber in fluid communication with the first damping chamber; a third damping chamber in fluid communication with the second damping chamber; and a separating member positioned within the third damping chamber to define a gas chamber; wherein the first damping chamber is not in fluid communication with the third damping chamber; a first flow passage provides fluid communication between the first damping chamber and the third actuator chamber and a second flow passage provides fluid communication between the second damping chamber and the fourth actuator chamber; and the first actuator chamber, the second actuator chamber, the third actuator chamber, the fourth actuator chamber, the first damping chamber, the second damping chamber, and the third damping chamber are filled with fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A suspension damper, comprising:
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an actuator including; a first housing having a first end and an opposing second end; a second housing positioned within the first housing and coaxially aligned with the first housing along an axis of the actuator, the second housing having a first end and an opposing second end and defining a passage between the first end and the second end; a piston slidably positioned within the passage of the second housing to define a first actuator chamber and a second actuator chamber; a first end cap coupled to the first end of the first housing and the first end of the second housing; a second end cap coupled to the second end of the first housing and the second end of the second housing; a piston rod coupled to the piston and extending through an opening defined through the first end cap; and a third actuator chamber is defined by the volume between the first housing and the second housing, wherein the first actuator chamber is in fluid communication with the third actuator chamber; and a static fluid damper including; a first damping chamber; a second damping chamber in fluid communication with the first damping chamber; a third damping chamber in fluid communication with the second damping chamber; and a separating member positioned within the third damping chamber to define a gas chamber; wherein the first damping chamber is not in fluid communication with the third damping chamber; a first flow passage provides fluid communication between the first damping chamber and the third actuator chamber and a second flow passage provides fluid communication between the second damping chamber and the second actuator chamber through an opening in the second end cap; and the first actuator chamber, the second actuator chamber, the third actuator chamber, the first damping chamber, the second damping chamber, and the third damping chamber are filled with fluid. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A suspension damper, comprising:
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an actuator including; a first housing having a first end and an opposing second end; a second housing positioned within the first housing and coaxially aligned with the first housing along an axis of the actuator, the second housing having a first end and an opposing second end and defining a passage between the first end and the second end; a piston slidably positioned within the passage of the second housing to define a first actuator chamber and a second actuator chamber; a first end cap coupled to the first end of the first housing and the first end of the second housing; a second end cap coupled to the second end of the first housing and the second end of the second housing; a piston rod coupled to the piston and extending through an opening defined through the first end cap; and a third actuator chamber is defined by the volume between the first housing and the second housing, wherein the second actuator chamber is in fluid communication with the third actuator chamber; and a static fluid damper including; a first damping chamber; a second damping chamber in fluid communication with the first damping chamber; a third damping chamber in fluid communication with the second damping chamber; and a separating member positioned within the third damping chamber to define a gas chamber; wherein the first damping chamber is not in fluid communication with the third damping chamber; a first flow passage provides fluid communication between the first damping chamber and the first actuator chamber through an opening in the first end cap and a second flow passage provides fluid communication between the second damping chamber and the third actuator chamber; and the first actuator chamber, the second actuator chamber, the third actuator chamber, the first damping chamber, the second damping chamber, and the third damping chamber are filled with fluid. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification