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公开(公告)号：US11359648B2
公开(公告)日：2022-06-14
申请号：US16818233
申请日：2020-03-13
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: An accumulator includes a housing, a flexible bladder and a support. The housing includes a chamber having a defined volume and a passage extending through the housing. The flexible bladder is positioned within the chamber and contains a compressible gas. The bladder being operable in an expanded condition and a partially collapsed condition. The support is positioned in the chamber and engages the flexible bladder when the flexible bladder is in the expanded condition. Liquid is positioned in the chamber and in contact with the flexible bladder. A volume of the liquid within the chamber is at a minimum when the flexible bladder is in the expanded condition. The volume of liquid within the chamber increases as a pressure of the liquid increases to compress the gas and operate the flexible bladder in the partially collapsed condition.
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公开(公告)号：US11143260B2
公开(公告)日：2021-10-12
申请号：US16234735
申请日：2018-12-28
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper with inner and outer tubes and a piston slidably disposed within the inner tube to define first and second working chambers. A collector chamber is positioned outside the outer tube. An external control valve is positioned in fluid communication with the collector chamber. An intake valve assembly, mounted to one end of the inner tube, includes an intake valve body, intake passages, and intake valve. The intake valve body abuts the outer tube to define an accumulation chamber positioned between the intake valve assembly and a closed end of the outer tube. The accumulation chamber is arranged in fluid communication with the collector chamber. The intake valve body forms a fluid-tight partition between the accumulation chamber and a fluid transport chamber is positioned between the inner and outer tubes. The intake valve controls fluid flow between the accumulation chamber and the second working chamber through the intake passages.
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公开(公告)号：US11248677B2
公开(公告)日：2022-02-15
申请号：US16515219
申请日：2019-07-18
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper with inner and outer tubes and a piston disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes. A collector chamber is positioned outside the outer tube. An intake valve assembly, abutting one end of the inner tube, is positioned inside the outer tube. An accumulator insert with an open end abutting the intake valve assembly is positioned inside the outer tube. The accumulator insert includes an accumulator sleeve, a floating piston, and a pressurized chamber. The floating piston is disposed inside the accumulator sleeve and the pressurized chamber is positioned between the floating piston and a closed end of the accumulator sleeve. An accumulation chamber is positioned between the intake valve assembly and the floating piston and the accumulator sleeve includes one or more apertures arranged in fluid communication with the collector chamber.
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公开(公告)号：US11156261B2
公开(公告)日：2021-10-26
申请号：US16234725
申请日：2018-12-28
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper with inner and outer tubes and a piston slidably disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes and a collector chamber is positioned outside the outer tube. First and second external control valves are positioned in fluid communication with the collector chamber. An intake valve assembly, abutting one end of the inner tube, includes first and second intake valve bodies with intake passages and intake valves. A first intermediate chamber is positioned between the first and second intake valve bodies and an accumulation chamber is positioned between the second intake valve body and a closed end of the outer tube. The fluid transport chamber, first intermediate chamber, and accumulation chamber are arranged in fluid communication with the collector chamber. The intake valves control fluid flow between the accumulation chamber and second working chamber.
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Patent Agency Ranking
公开(公告)号：US11635122B2
公开(公告)日：2023-04-25
申请号：US17324620
申请日：2021-05-19
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper with inner and outer tubes and a piston disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes. A collector chamber is positioned outside the outer tube. An intake valve assembly, abutting one end of the inner tube, is positioned inside the outer tube to define a first intermediate chamber that is arranged in fluid communication with the collector chamber. The intake valve assembly includes a central passage that is arranged in fluid communication with the second working chamber and one or more intake valves that control fluid flow through the intake valve assembly between the first intermediate chamber and the central passage and between the first intermediate chamber and the fluid transport chamber.
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公开(公告)号：US11454291B2
公开(公告)日：2022-09-27
申请号：US16235034
申请日：2018-12-28
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper includes an inner tube. The damper includes a piston slidably disposed within the inner tube. The piston defines a first working chamber and a second working chamber within the inner tube. The damper also includes an outer tube disposed around the inner tube. The outer tube defines an outer chamber between the inner tube and the outer tube. The damper further includes a cover member mounted on an outer surface of the outer tube. The cover member defines a collector chamber between the outer tube and the cover member. The damper includes a first control valve mounted on the cover member. The damper also includes a second control valve mounted on the cover member and spaced apart from the first control valve.
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公开(公告)号：US11118649B2
公开(公告)日：2021-09-14
申请号：US16458782
申请日：2019-07-01
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper with inner and outer tubes and a piston slidably disposed within the inner tube to define first and second working chambers. A fluid transport chamber is positioned between the inner and outer tubes. A collector chamber is positioned outside the outer tube. An intake valve assembly, abutting one end of the inner tube, includes first and second intake valve bodies and a divider body, which define first and second intermediate chambers in the intake valve assembly. An accumulation chamber is positioned between the intake valve assembly and a closed end of the outer tube. The first intermediate chamber and accumulation chamber are arranged in fluid communication with the collector chamber. A first intake valve controls fluid flow between the second working chamber and the collector chamber. A second intake valve controls fluid flow between the second intermediate chamber and the collector chamber.
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公开(公告)号：US10434835B2
公开(公告)日：2019-10-08
申请号：US15434435
申请日：2017-02-16
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Kristoff Six , Stefan Deferme , Peter Boon
Abstract: A hydraulic actuator circuit is disclosed for use with first and second shock absorbers, which each may include a piston disposed within a housing. The piston helps define upper and lower working chambers. The circuit may have a motor, a first pump, driven by the motor, and is associated with the first shock absorber and the motor. A second pump, driven by the motor, may be associated with the second shock absorber. A first accumulator communicates with both of the first and second pumps. A first switch valve may assist in controlling fluid flow into the chambers of the first shock absorber. A second switch valve may assist in controlling fluid flow into the chambers of the second shock absorber.
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公开(公告)号：US20190136932A1
公开(公告)日：2019-05-09
申请号：US16235034
申请日：2018-12-28
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stefan Deferme
Abstract: A damper includes an inner tube. The damper includes a piston slidably disposed within the inner tube. The piston defines a first working chamber and a second working chamber within the inner tube. The damper also includes an outer tube disposed around the inner tube. The outer tube defines an outer chamber between the inner tube and the outer tube. The damper further includes a cover member mounted on an outer surface of the outer tube. The cover member defines a collector chamber between the outer tube and the cover member. The damper includes a first control valve mounted on the cover member. The damper also includes a second control valve mounted on the cover member and spaced apart from the first control valve.
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