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公开(公告)号：US10077825B2
公开(公告)日：2018-09-18
申请号：US14772078
申请日：2014-03-06
Applicant: BorgWarner Inc.
Inventor： Kevin B. Todd , Dale N. Smith , Robert G Williamson , Fenton O'Shea
CPC classification number: F16H7/0836 , F02B67/06 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859 , F16H2007/0893
Abstract: A tensioner for tensioning a chain or belt span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain or belt tension as low as possible without sacrificing chain or belt control, significantly improving drive efficiency at new chain or belt conditions and conditions with dynamic loads.
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公开(公告)号：US12129925B2
公开(公告)日：2024-10-29
申请号：US18548434
申请日：2021-03-02
Applicant: BorgWarner, Inc.
Inventor： Fenton O'Shea , Michael Smart
IPC: F16H7/08
CPC classification number: F16H7/0836 , F16H2007/0808 , F16H2007/0814
Abstract: One or more radial holes in the body of the hydraulic tensioner are used to control outward hydraulic flow restriction from the hydraulic pressure chamber within the piston. The one or more holes can be arranged in different ways to allow the piston position to alter the outward oil flow of the tensioner.
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公开(公告)号：US20240229903A9
公开(公告)日：2024-07-11
申请号：US18548434
申请日：2021-03-02
Applicant: BorgWarner, Inc.
Inventor： Fenton O'Shea , Michael Smart
IPC: F16H7/08
CPC classification number: F16H7/0836 , F16H2007/0808 , F16H2007/0814
Abstract: One or more radial holes in the body of the hydraulic tensioner are used to control outward hydraulic flow restriction from the hydraulic pressure chamber within the piston. The one or more holes can be arranged in different ways to allow the piston position to alter the outward oil flow of the tensioner.
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公开(公告)号：US20240133451A1
公开(公告)日：2024-04-25
申请号：US18548434
申请日：2021-03-02
Applicant: BorgWarner, Inc.
Inventor： Fenton O'Shea , Michael Smart
IPC: F16H7/08
CPC classification number: F16H7/0836 , F16H2007/0808 , F16H2007/0814
Abstract: One or more radial holes in the body of the hydraulic tensioner are used to control outward hydraulic flow restriction from the hydraulic pressure chamber within the piston. The one or more holes can be arranged in different ways to allow the piston position to alter the outward oil flow of the tensioner.
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