公开(公告)号：US20220235851A1

公开(公告)日：2022-07-28

申请号：US17648488

申请日：2022-01-20

Applicant: BorgWarner Inc.

Inventor： Matthew W. CRUMP ,  Christopher VAN LOON ,  Sean R. SIMMONS ,  Joseph P. GOODSELL

IPC: F16H7/08 ,  F16H7/18

Abstract: A chain tensioning device which combats natural build-up of chain slack. In controlling the chain slack, the torque at which a chain jumps occurs is delayed resulting in a higher jump torque performance.

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：US20220235852A1

公开(公告)日：2022-07-28

申请号：US17648617

申请日：2022-01-21

Applicant: BorgWarner Inc.

Inventor： Matthew W. CRUMP ,  Christopher VAN LOON ,  Sean R. SIMMONS ,  Timothy K. WHITE ,  Joseph P. GOODSELL ,  Bradley F. ADAMS

IPC: F16H7/18 ,  F16H7/06

Abstract: A tooth jump protection device is used to control chain slack and delay the torque at which chain jump occurs, thus increasing jump torque performance. The tooth jump protection device is preferably mounted to the transfer case.

公开(公告)号：US20250043851A1

公开(公告)日：2025-02-06

申请号：US18785969

申请日：2024-07-26

Applicant: BorgWarner Inc.

Inventor： Joseph P. GOODSELL ,  Joseph MANLEY ,  Bradley F. ADAMS ,  John CROCKETT ,  Sean R. SIMMONS ,  Richard LOVE

IPC: F16H7/08

Abstract: An automatic mechanical tensioner assembly with a shipping and installation position in which a collar engages a fixed hollow sleeve, limiting or securing a moveable tensioner housing in place against the force of a spring. The collar has a semicircular body defining an inner circumference extending from a first end to a second end of the body. The semicircular body has two axially extending flanges defining a cutout, and a collar tab extending radially from the semicircular body. In the shipping and installation position, the first end of the collar engages with a delivery groove of the hollow sleeve, biasing the moveable housing towards an anti-rotation washer engaged with an end of the fixed hollow sleeve and compressing the spring.

公开(公告)号：US20170356529A1

公开(公告)日：2017-12-14

申请号：US15617267

申请日：2017-06-08

Applicant: BorgWarner Inc.

Inventor： Sean R. SIMMONS

IPC: F16H7/08

CPC classification number: F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0855 ,  F16H2007/0859 ,  F16H2007/0872 ,  F16H2007/0893 ,  F16H2007/0897

Abstract: A variable force tensioning assembly creates and maintains a tension force on an endless loop used to transmit power. The variable force tensioning assembly includes a body having a cylinder defining a cylinder inner diameter. An outer piston is disposed substantially within the cylinder and slidable therewithin. The outer piston includes an outer piston tube and a chamber divider extending through the outer piston tube. The outer piston and the body define a low rate portion. An inner piston is disposed at least partially within the outer piston tube and is slidable therewithin. The inner piston defines a high rate portion and acts with the outer piston against the body to create a variable force to push against the endless loop to maintain a constant tension in the endless loop.

公开(公告)号：US20170248204A1

公开(公告)日：2017-08-31

申请号：US15504067

申请日：2015-08-18

Applicant: BorgWarner Inc.

Inventor： Sean R. SIMMONS ,  Simon BARRETTE

IPC: F16H7/08 ,  F16H7/12 ,  F16H7/18

CPC classification number: F16H7/0838 ,  F16H7/08 ,  F16H7/0831 ,  F16H7/1209 ,  F16H7/1218 ,  F16H7/18 ,  F16H2007/081 ,  F16H2007/185

Abstract: A tensioner uses a low rate torsion spring in a first stage and a high rate torsion spring in a second stage to maintain tension in a chain or belt. The first stage is connected to the second stage by a torque coupling. The high rate torsion spring is maintained in an energized state between a ground and a dead stop to store energy and to provide tension under high loads. In some embodiments, the torque coupling is a damper. In other embodiments, the torque coupling is a clutch. A method stores energy in a high rate torsion spring of a tensioner.