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公开(公告)号：US20150330482A1
公开(公告)日：2015-11-19
申请号：US14651292
申请日：2013-12-02
Applicant: BORGWARNER INC.
Inventor： Kevin B. Todd , Dale N. Smith
CPC classification number: F16H7/0836 , F02B67/06 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859 , F16H2007/0893
Abstract: A tensioner for tensioning a chain 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 tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.
Abstract translation: 用于张紧使用两个活塞的链跨的张紧器。 两个活塞的运动可以联接在一起。 第一活塞为链跨提供阻尼，第二活塞为链跨提供可变的，主导的和自动调节的弹力。 张紧器自动调整平均张力，以保持链条张力尽可能低，而不会牺牲链条控制，显着提高新链条条件下的驱动效率和动态载荷条件。
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公开(公告)号：US20140179471A1
公开(公告)日：2014-06-26
申请号：US14096450
申请日：2013-12-04
Applicant: BorgWarner Inc.
Inventor： George L. Markley , Simon Barrette , Dale N. Smith , Joseph P. Goodsell
IPC: F16H7/08
CPC classification number: F16H7/0836 , F16H2007/0806 , F16H2007/0814 , F16H2007/0859 , F16H2007/0878
Abstract: A tensioner comprising a piston slidably received within a piston bore of the housing having a plurality of grooves formed on an outer circumference, the piston forming a first pressure chamber with the piston bore. The tensioner uses a mechanism to remove a sliding pawl or expandable clip from engaging the grooves on the piston, such that the piston can move towards the housing and reduce chain load when fluid pressure is reduced in the first pressure chamber during engine shutdown, but not so much as to leave the chain uncontrolled during engine restart. The mechanism may for example be a fluid biased spool piston which engages the expandable clip or a pawl piston that engages a sliding pawl.
Abstract translation: 一种张紧器，包括可滑动地容纳在所述壳体的活塞孔内的活塞，所述活塞孔具有形成在外周上的多个槽，所述活塞与所述活塞孔形成第一压力室。 张紧器使用机构来移除滑动爪或可膨胀夹与接合活塞上的凹槽，使得当发动机关闭期间流体压力在第一压力室中减小时，活塞可以向壳体移动并减小链条负载，但不 在发动机重新启动期间，使链条不受控制。 该机构可以例如是与可膨胀夹或接合滑动爪的棘爪活塞接合的流体偏压卷轴活塞。
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公开(公告)号：US10436291B2
公开(公告)日：2019-10-08
申请号：US15599924
申请日：2017-05-19
Applicant: BorgWarner Inc.
Inventor： Kevin B. Todd , Dale N. Smith
Abstract: A tensioner for tensioning a chain 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 tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.
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公开(公告)号：US09874267B2
公开(公告)日：2018-01-23
申请号：US14891029
申请日：2014-05-15
Applicant: BorgWarner Inc.
Inventor： Mark M. Wigsten , Dale N. Smith
CPC classification number: F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0817 , F16H2007/0851 , F16H2007/0853
Abstract: A tensioner (10) for an endless loop power transmission member can induce a piston (12) operably engageable with an endless loop power transmission member, and a cylinder (14) guiding include a piston (12) for sliding coaxial movement in a direction of the endless loop power transmission member. The piston (12) and cylinder (14) defining an oil reservoir or pressure chamber (26) for receiving hydraulic fluid. A bearing (28) has bearing balls (30) located in a counter bore (32) coaxial with cylinder bore (34). The counter bore (32) has a steep taper (36) on which the bearing balls (30) ride. As the cylinder (14) moves in an extending direction, the bearing balls (30) move out of the counter bore (32) allowing free extending movement of the cylinder (14). As the cylinder (14) moves in a retracting direction, the bearing balls (30) are driven down into the steep taper (36) preventing the cylinder (14) from retracting.
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公开(公告)号：US20170254393A1
公开(公告)日：2017-09-07
申请号：US15599924
申请日：2017-05-19
Applicant: BorgWarner Inc.
Inventor： Kevin B. Todd , Dale N. Smith
CPC classification number: F16H7/0836 , F02B67/06 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859 , F16H2007/0893
Abstract: A tensioner for tensioning a chain 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 tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.
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Patent Agency Ranking
公开(公告)号：US09605732B2
公开(公告)日：2017-03-28
申请号：US14903860
申请日：2014-07-07
Applicant: BorgWarner Inc.
Inventor： Dale N. Smith , Mark Wigsten
CPC classification number: F16H7/0848 , F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859
Abstract: A tensioner (10) for an endless loop power transmission member can include the assembly of a plunger (12) operably engageable with an endless loop power transmission member, and a piston (14) guiding the plunger (12) for sliding coaxial movement in a direction of the endless loop power transmission member and defining an oil reservoir (26) for receiving hydraulic fluid. A bearing (28) can have bearing balls (30) located in a counter bore (32) coaxial with piston bore (34). The counter bore (32) can have a steep taper (36) on which the bearing balls (30) ride, such that as the plunger (12) moves in an extending direction, the bearing balls (30) move out of the counter bore (32) allowing free extending movement of the plunger (12), and as the plunger (12) moves in a retracting direction, the bearing balls (30) are driven down into the steep taper (36) preventing the plunger (12) from retracting.
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公开(公告)号：US09377088B2
公开(公告)日：2016-06-28
申请号：US14196261
申请日：2014-03-04
Applicant: BorgWarner Inc.
Inventor： Kevin B. Todd , Mark E. Patton , Dale N. Smith
IPC: F16H7/08
CPC classification number: F16H7/0848 , F16H7/08 , F16H2007/0812 , F16H2007/0814 , F16H2007/0817 , F16H2007/0859 , F16H2007/0891
Abstract: A tensioner which adjusts the mean tensioner force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency as the chain wears and is subject to low dynamic loads.
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公开(公告)号：US09360088B2
公开(公告)日：2016-06-07
申请号：US14196229
申请日：2014-03-04
Applicant: BorgWarner Inc.
Inventor： Kevin B. Todd , Mark E. Patton , Dale N. Smith
CPC classification number: F16H7/0848 , F16H7/08 , F16H2007/0812 , F16H2007/0814 , F16H2007/0817 , F16H2007/0859 , F16H2007/0891
Abstract: A tensioner which adjusts the mean tensioner force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency as the chain wears and is subject to low dynamic loads.
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公开(公告)号：US20160033016A1
公开(公告)日：2016-02-04
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
IPC: F16H7/08
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.
Abstract translation: 用于张紧使用两个活塞的链条或皮带跨度的张紧器。 两个活塞的运动可以联接在一起。 第一活塞为链跨提供阻尼，第二活塞为链跨提供可变的，主导的和自动调节的弹力。 张紧器自动调节平均张力，以保持链条或皮带张力尽可能低，而不会牺牲链条或皮带控制，显着提高新链条或皮带条件和动态载荷条件下的驱动效率。
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公开(公告)号：US20150354674A1
公开(公告)日：2015-12-10
申请号：US14653381
申请日：2013-12-05
Applicant: BORGWARNER INC.
Inventor： George L. Markley , Simon Barrette , Dale N. Smith , Joseph P. Goodsell
IPC: F16H7/08
CPC classification number: F16H7/0848 , F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0859 , F16H2007/0878 , F16H2007/0885
Abstract: A tensioner comprising a piston slidably received within a piston bore of the housing having a plurality of grooves formed on an outer circumference, the piston forming a first pressure chamber with the piston bore. The tensioner uses a mechanism to remove a sliding pawl or expandable clip from engaging the grooves on the piston, such that the piston can move towards the housing and reduce chain load when fluid pressure is reduced in the first pressure chamber during engine shutdown, but not so much as to leave the chain uncontrolled during engine restart. The mechanism may for example be a fluid biased spool piston which engages the expandable clip or a pawl piston that engages a sliding pawl.
Abstract translation: 一种张紧器，包括可滑动地容纳在所述壳体的活塞孔内的活塞，所述活塞孔具有形成在外周上的多个槽，所述活塞与所述活塞孔形成第一压力室。 张紧器使用机构来移除滑动爪或可膨胀夹与接合活塞上的凹槽，使得当发动机关闭期间流体压力在第一压力室中减小时，活塞可以向壳体移动并减小链条负载，但不 在发动机重新启动期间，使链条不受控制。 该机构可以例如是与可膨胀夹或接合滑动爪的棘爪活塞接合的流体偏压卷轴活塞。
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