Patent ID: 8205730
Filing Date: 2012-06-26
Classification: B60G,B62K,F16F

Abstract:
1. A pressure-sensitive damper, comprising: a first cylinder at least partially defining a first fluid chamber containing a damping fluid; a damping piston supported for reciprocal motion within said first cylinder; a piston rod having a first end connected to said damping piston, and a second end extending through a sealed opening in a seal head fixed to a first end of said first cylinder; a second cylinder at least partially defining a second fluid chamber in selective fluid communication with said first cylinder and containing a damping fluid; a compression damping plate fixed in said second cylinder; at least one passage in said compression damping plate through which said damping fluid, displaced by the entrance into said first cylinder of successive portions of said piston rod during a compression stroke, flows in a first direction from said first fluid chamber to said second fluid chamber; a first pressure source in communication with said second fluid chamber; a valve which generates a resistance force to said fluid flow through said at least one passage in said first direction, wherein said resistance force varies according to an amount of force communicated to said valve by said first pressure source, said valve comprising: wherein said first pressure source acts on a first end of said intensifier piston, which generates an intensified pressure at the second end of said intensifier piston, and wherein said intensified pressure is communicated to said blow-off piston to create a force urging said blow-off piston toward said first position.