Patent ID: 7950506
Filing Date: 2011-05-31
Classification: F16F

Abstract:
1. A shock absorber comprising: a pressure tube forming a working chamber; a piston assembly slidably disposed within said pressure tube, said piston assembly dividing said working chamber into an upper working chamber and a lower working chamber; a reserve tube disposed around said pressure tube; an intermediate tube disposed between said pressure tube and said reserve tube, an intermediate chamber being defined between said intermediate tube and said pressure tube, a first reserve chamber being defined between said reserve tube and said pressure tube; a first sealing ring disposed within said first reserve chamber, said first sealing ring dividing said first reserve chamber into an upper reserve chamber and a lower reserve chamber; a valve assembly mounted to said reserve tube, said valve assembly having an inlet in communication with said intermediate chamber, a first outlet in communication with said upper reserve chamber and a second outlet in communication with said lower reserve chamber; and a base valve assembly disposed between said lower working chamber and said lower reserve chamber, said base valve assembly controlling fluid flow between said lower working chamber and said lower reserve chamber.