公开(公告)号：US20180094709A1

公开(公告)日：2018-04-05

申请号：US15714088

申请日：2017-09-25

Applicant: BorgWarner Inc.

Inventor： Mark M. WIGSTEN ,  Kevin B. TODD ,  Dale N. SMITH ,  Sean R. SIMMONS ,  Seongdo HONG

IPC: F16H7/08

Abstract: A pressure regulator is in fluid communication with a supply inlet of a hydraulic tensioner to actively control fluid to the inlet of the hydraulic tensioner. By actively controlling the pressure regulator based on engine conditions and thus the oil pressure being fed to the hydraulic tensioner, the oil pressure to the hydraulic tensioner may be reduced at low engine speeds, increasing the efficiency of the timing system, or allowing full oil pressure at high engine speeds and low engine temperature.

公开(公告)号：US20160369874A1

公开(公告)日：2016-12-22

申请号：US14903860

申请日：2014-07-07

Applicant: BORGWARNER INC.

Inventor： Dale N. SMITH ,  Mark WIGSTEN

IPC: F16H7/08

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.

Abstract translation: 用于无端环动力传递构件的张紧器（10）可以包括可操作地与无端环动力传递构件接合的柱塞（12）的组件，以及引导柱塞（12）的活塞（14），用于在 并且限定用于接收液压流体的储油器（26）。 轴承（28）可以具有位于与活塞孔（34）同轴的反向孔（32）中的轴承滚珠（30）。 沉孔（32）可以具有陡峭的锥形部分（36），轴承滚珠（30）在该锥形部分上行进，使得当柱塞（12）沿延伸方向移动时，轴承滚珠（30）从反向孔 （32），允许柱塞（12）的自由延伸运动，并且当柱塞（12）沿回缩方向移动时，轴承滚珠（30）被向下驱动到陡锥形部分（36）中，从而防止柱塞（12） 缩回

公开(公告)号：US20180320566A1

公开(公告)日：2018-11-08

申请号：US15772993

申请日：2016-11-03

Applicant: BorgWarner Inc.

Inventor： Mark M. WIGSTEN ,  Dale N. SMITH

IPC: F01L13/00 ,  F01L1/053 ,  F01L1/047

CPC classification number: F01L13/0036 ,  F01L1/022 ,  F01L1/047 ,  F01L1/053 ,  F01L1/3442 ,  F01L2001/0473 ,  F01L2001/0476 ,  F01L2013/0052 ,  F01L2013/10 ,  F01L2013/101 ,  F01L2810/03 ,  F01L2820/01

Abstract: A valve operating system that includes a plurality of cam assemblies that are coupled for rotation about a rotary axis. Each of the cam assemblies has a control link and a first cam member. Each of the control links has a link body, which forms a majority of the control link, and that extends parallel to the rotary axis. Each of the first cam members is coupled to one of the control links for axial movement therewith along the rotary axis between first and second positions to alternate between first and second cam profiles, respectively.

公开(公告)号：US20160084359A1

公开(公告)日：2016-03-24

申请号：US14891029

申请日：2014-05-15

Applicant: BorgWarner Inc.

Inventor： Mark M. WIGSTEN ,  Dale N. SMITH

IPC: F16H7/08

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) coaxil 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.

Abstract translation: 用于无端环动力传递构件的张紧器（10）可以引导可操作地与无端环动力传递构件接合的活塞（12），并且引导的缸（14）包括活塞（12），用于沿着 无端回路动力传递部件。 活塞（12）和气缸（14）限定用于接收液压流体的储油器或压力室（26）。 轴承（28）具有位于与气缸孔（34）同轴的反向孔（32）中的轴承滚珠（30）。 沉孔（32）具有陡峭的锥形（36），轴承滚珠（30）骑在其上。 随着气缸（14）沿延伸方向移动，轴承滚珠（30）移动到反向孔（32）外，允许气缸（14）的自由延伸运动。 当气缸（14）沿缩回方向移动时，轴承滚珠（30）被向下驱动到陡锥形（36）中，防止气缸（14）收回。

公开(公告)号：US20210285524A1

公开(公告)日：2021-09-16

申请号：US16325038

申请日：2017-08-16

Applicant: BorgWarner Inc.

Inventor： Toru SHINOYAMA ,  Jeremy BENN ,  Dale N. SMITH ,  Seongdo HONG

IPC: F16H7/08 ,  F01L1/02 ,  F16K15/04 ,  F16K39/02

Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated band, which is preferably made of metal, placed around the outside of a pressure relief valve body. A hydraulic tensioner includes a housing with a bore and a hollow piston slidably received within the bore. A piston spring biases the piston in a direction toward a power transmission device. The tensioner also includes an integrated check valve in a body of the housing. The integrated check valve includes a pressure relief valve mechanism and a band check valve mechanism surrounding a circumference of the pressure relief valve mechanism. The pressure relief valve mechanism permits transfer of pressurized fluid from a piston chamber formed by the hollow piston to the source of pressurized fluid and the check valve mechanism permits transfer of pressurized fluid from the source of pressurized fluid to the piston chamber.

公开(公告)号：US20190003557A1

公开(公告)日：2019-01-03

申请号：US15748700

申请日：2016-07-25

Applicant: BorgWarner Inc.

Inventor： Keith B. COBB ,  Matthew W. CRUMP ,  Dale N. SMITH

IPC: F16H7/08 ,  F01L1/02 ,  F16K15/04 ,  F16K27/02

Abstract: A press-fit check valve for a hydraulic tensioner includes a retainer, a seat, a ball, and a spring. The seat of the check valve is press-fit against the wall of the check valve counterbore of the hydraulic tensioner body. In some embodiments, the seat is cup-shaped to provide a predetermined level of press force retention of the press-fit check valve. In some embodiments, the seat includes a plurality of legs separated by leg openings. In some embodiments, a backflow path is provided past the press-fit check valve by a combination of the leg openings and at least one backflow slot through a flange of the retainer. In some embodiments, a lip at the outer end of the check valve counterbore prevents the seat from backing out of the check valve counterbore.