Invention Grant
- Patent Title: Damper with two-piece shell
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Application No.: US16166505Application Date: 2018-10-22
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Publication No.: US11384810B2Publication Date: 2022-07-12
- Inventor: Amirahmad Mohammadi
- Applicant: Tenneco Automotive Operating Company Inc.
- Applicant Address: US IL Lake Forest
- Assignee: Tenneco Automotive Operating Company Inc.
- Current Assignee: Tenneco Automotive Operating Company Inc.
- Current Assignee Address: US IL Lake Forest
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: F16F9/32
- IPC: F16F9/32 ; B23K31/02 ; B21D22/02 ; B23K26/24 ; F16F9/10 ; B23K26/38 ; B23K101/06 ; B23K103/04

Abstract:
A shock absorber pressure tube defining a working chamber is provided. A piston assembly coupled to a piston rod is slidably disposed in the pressure tube and divides the working chamber into upper and lower working chambers. A reserve tube surrounds the pressure tube to define a reserve chamber. A base valve assembly, position at one end of the pressure tube, controls fluid flow between the lower working chamber and the reserve chamber. The reserve tube comprises first and second open shells that are joined together at longitudinal seams to create a substantially cylindrical shape. The first and second open shells may be made from patchwork blanks, tailor welded blanks, tailor rolled blanks, or tailor heat treated blanks to give different portions of the first and second open shells different thicknesses, strengths, properties, or characteristics.
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