公开(公告)号：US11326670B2

公开(公告)日：2022-05-10

申请号：US16715195

申请日：2019-12-16

Applicant: BorgWarner Inc.

Inventor： Keith B. Cobb ,  Paul Freemantle ,  Robert G Williamson ,  Adam C Hunt ,  Seongdo Hong

IPC: F16H7/08

Abstract: A hydraulic tensioner for an internal combustion engine for tensioning a span of a chain or a belt has a piston with an internal reservoir connected to a high pressure chamber through a check valve assembly. The check valve assembly has a disk seat formed by an internal bulge within the piston; a check valve retainer within the piston, and a moveable disk that is received between the disk seat formed by the internal bulge and the check valve retainer and is moveable between a first position and a second position, and a check valve spring that is received between the check valve disk and the check valve retainer.

公开(公告)号：US10738860B2

公开(公告)日：2020-08-11

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：US20160356365A1

公开(公告)日：2016-12-08

申请号：US15239045

申请日：2016-08-17

Applicant: BorgWarner Inc.

Inventor： Matthew W. Crump ,  Toru Shinoyama ,  Seongdo Hong

IPC: F16H7/08

CPC classification number: F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0817 ,  F16H2007/0859 ,  F16H2007/0872 ,  F16H2007/0893

Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated disk check valve surrounding the pressure relief valve. 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 disk 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.

Abstract translation: 用于液压张紧器的集成阀包括具有围绕减压阀的集成盘止回阀的减压阀。 液压张紧器包括具有孔的壳体和可滑动地容纳在孔内的中空活塞。 活塞弹簧朝向动力传递装置的方向偏压活塞。 张紧器还包括在壳体的整体中的集成的止回阀。 一体式止回阀包括压力释放阀机构和围绕减压阀机构的圆周的圆盘止回阀机构。 减压阀机构允许加压流体从由中空活塞形成的活塞室传递到加压流体源，并且止回阀机构允许加压流体从加压流体源传递到活塞室。

公开(公告)号：US10006524B2

公开(公告)日：2018-06-26

申请号：US15239045

申请日：2016-08-17

Applicant: BorgWarner Inc.

Inventor： Matthew W. Crump ,  Toru Shinoyama ,  Seongdo Hong

IPC: F16H7/22 ,  F16H7/08

CPC classification number: F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0817 ,  F16H2007/0859 ,  F16H2007/0872 ,  F16H2007/0893

Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated disk check valve surrounding the pressure relief valve. 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 disk 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.