Patent ID: 11867254
Assignee: TENNECO AUTOMOTIVE OPERATING COMPANY INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC F

Claim 16:
17. A damper comprising:
a pressure tube extending longitudinally between a first pressure tube end and a second pressure tube end;
a piston arranged in sliding engagement inside said pressure tube;
said piston dividing said pressure tube into a first working chamber and a second working chamber;
a piston rod coupled to said piston to form a piston rod assembly;
a hydraulic compression stop assembly positioned in said second working chamber, said hydraulic compression stop assembly including a sleeve, a plunger arranged in sliding engagement with said sleeve for movement between an extended position and a retracted position, and a biasing member that biases said plunger towards said extended position;
said sleeve and said plunger cooperating to define a hydraulic chamber inside said hydraulic compression stop assembly;
said hydraulic compression stop assembly extending longitudinally between a first assembly end and a second assembly end that is positioned closer to said second pressure tube end than said first assembly end;
said plunger extending longitudinally between a first plunger end that is configured to contact at least one of said piston and said piston rod during a compression stroke and a second plunger end that is arranged in sliding engagement inside said sleeve;
a pressure relief valve located at said second assembly end that is positioned to open and close at least one pressure relief passageway that is constructed to communicate fluid from said hydraulic chamber inside said hydraulic compression stop assembly to said second working chamber when fluid pressure inside said hydraulic chamber exceeds a pre-determined threshold pressure; and
a base adapter is fixedly attached to said second sleeve end and includes a base adapter wall, said pressure relief passageway extends through said base adapter wall, and said pressure relief valve is mounted to said base adapter wall,
wherein said biasing member extends longitudinally between a first biasing member end and a second biasing member end and wherein said biasing member is positioned inside said hydraulic chamber such that said second biasing member end is arranged in contact with said base adapter wall.