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Patent Agency Ranking
公开(公告)号：US10962081B2
公开(公告)日：2021-03-30
申请号：US16571474
申请日：2019-09-16
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Shivanand Sankaran , Wojciech Weglorz
Abstract: A damper includes a pressure tube and a piston defining a rebound chamber and a compression chamber within the pressure tube. The damper further includes an adapter attached to the pressure tube. The damper includes a retainer slidably disposed within the pressure tube. The retainer and the adapter define an end chamber therebetween within the pressure tube. The damper also includes a cup movably disposed within the pressure tube between the retainer and the adapter. The damper further includes a tubular member disposed adjacent to the cup and attached to the adapter. The tubular member includes at least one through aperture. The damper includes a base valve attached to the adapter. The damper also includes a first spring disposed between the retainer and the cup and a second spring disposed between cup and the adapter.
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公开(公告)号：US11867254B2
公开(公告)日：2024-01-09
申请号：US17119157
申请日：2020-12-11
Applicant: Tenneco Automotive Operating Company, Inc.
Inventor： Shivanand Sankaran , Wojciech Weglorz , Damian Slawik , Rafal Psota , Daniel Buczkowski , Thomas P. Mallin
Abstract: A damper having a pressure tube, a piston, and a hydraulic compression stop assembly. The piston is arranged in sliding engagement inside the pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber and the piston is coupled to a piston rod that extends through the first working chamber. The hydraulic compression stop assembly is positioned in the second working chamber. The hydraulic compression stop assembly includes a sleeve, a plunger, a biasing member, and a pressure relief valve. The plunger is arranged in sliding engagement with the sleeve and can therefore move between an extended position and a retracted position. The biasing member biases the plunger towards the extended position and the pressure relief valve relieves excessive fluid pressure inside the hydraulic compression stop assembly.
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公开(公告)号：US20200011395A1
公开(公告)日：2020-01-09
申请号：US16571474
申请日：2019-09-16
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Shivanand Sankaran , Wojciech Weglorz
Abstract: A damper includes a pressure tube and a piston defining a rebound chamber and a compression chamber within the pressure tube. The damper further includes an adapter attached to the pressure tube. The damper includes a retainer slidably disposed within the pressure tube. The retainer and the adapter define an end chamber therebetween within the pressure tube. The damper also includes a cup movably disposed within the pressure tube between the retainer and the adapter. The damper further includes a tubular member disposed adjacent to the cup and attached to the adapter. The tubular member includes at least one through aperture. The damper includes a base valve attached to the adapter. The damper also includes a first spring disposed between the retainer and the cup and a second spring disposed between cup and the adapter.
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公开(公告)号：US12110945B2
公开(公告)日：2024-10-08
申请号：US18524547
申请日：2023-11-30
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Shivanand Sankaran , Wojciech Weglorz , Damian Slawik , Daniel Buczkowski , Thomas P. Mallin
Abstract: A damper includes a piston arranged in sliding engagement inside a pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber. A hydraulic compression stop assembly is positioned within the second working chamber and includes a plunger arranged in sliding engagement with a sleeve. The plunger includes a bumper cavity having a side wall. The bumper cavity extends a cavity depth from an end face of the plunger. The bumper cavity is in receipt of a compliant bumper. The bumper includes a bumper height greater than the cavity depth such that a portion of the bumper protrudes from the bumper cavity. The protruding bumper portion limits a maximum amount the bumper may be compressed before the sidewall is loaded by one of the piston and a piston rod.
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公开(公告)号：US20240093753A1
公开(公告)日：2024-03-21
申请号：US18524547
申请日：2023-11-30
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Shivanand Sankaran , Wojciech Weglorz , Damian Slawik , Daniel Buczkowski , Thomas P. Mallin
Abstract: A damper includes a piston arranged in sliding engagement inside a pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber. A hydraulic compression stop assembly is positioned within the second working chamber and includes a plunger arranged in sliding engagement with a sleeve. The plunger includes a bumper cavity having a side wall. The bumper cavity extends a cavity depth from an end face of the plunger. The bumper cavity is in receipt of a compliant bumper. The bumper includes a bumper height greater than the cavity depth such that a portion of the bumper protrudes from the bumper cavity. The protruding bumper portion limits a maximum amount the bumper may be compressed before the sidewall is loaded by one of the piston and a piston rod.
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