公开(公告)号：US20170370447A1

公开(公告)日：2017-12-28

申请号：US15539889

申请日：2015-12-14

Applicant: BorgWarner Inc.

Inventor： Paul FREEMANTLE ,  Robert G. WILLIAMSON ,  J. Christian HAESLOOP

IPC: F16H7/08

CPC classification number: F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0878

Abstract: A hydraulic tensioner (10) and method of assembly can include a housing (12) having an aperture and a piston (16) received within the aperture for movement between an extended position and a retracted position. A tensioner spring (36) positioned within the aperture for bias the piston (16) toward the extended position. The piston (16) and the aperture of the housing (12) defining an expandable fluid chamber (18). The hydraulic tensioner (10) can include a cantilever spring (20) having a first end (22) attachable to the housing (12) and a second end (24) releasably engageable with the piston (16) for retaining the piston (16) in the retracted position against urging of the tensioner spring (36) during storage, shipment, installation, and service. The second end (24) can be disengageable from the piston (16) allowing movement of the piston (16) outwardly toward the extended position during operation in a working environment.

公开(公告)号：US20200166113A1

公开(公告)日：2020-05-28

申请号：US16613842

申请日：2017-05-17

Applicant: BorgWarner Inc.

Inventor： Adam T. HOLIC ,  Bradley F. ADAMS ,  Robert G. WILLIAMSON

IPC: F16H55/30 ,  F16H7/06

Abstract: In one form, the present disclosure provides for a sprocket assembly including a sprocket wheel and a sprocket cushion. The sprocket wheel can include teeth extending radially outward from a hub. The cushion can be coupled to the hub on a first axial side of the teeth. The cushion can include an annular base and a plurality of projections. The base can be disposed about the hub and the projections can extend radially outward therefrom. Each projection can include a first axial end, second axial end, top surface, and chamfer. The first axial end can be proximal to the first axial side of the teeth. The top surface can extend axially between the first axial end and the second axial end. The chamfer can join the second axial end and the top surface such that a radial thickness of each projection decreases with increased axial distance away from the teeth.

公开(公告)号：US20190234494A1

公开(公告)日：2019-08-01

申请号：US16262999

申请日：2019-01-31

Applicant: BorgWarner Inc.

Inventor： Keith B. COBB ,  Kevin B. TODD ,  Robert G. WILLIAMSON

IPC: F16H7/08 ,  F01L1/02

CPC classification number: F16H7/0836 ,  F01L1/022 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0846 ,  F16H2007/0891

Abstract: In order to prevent noise, a ratchet clip and grooves for the ratchet clip to engage are added to the second piston, such that the second piston cannot hit the bottom of the second bore housing. The second piston is prevented from hitting the bottom of the second bore housing by the ratchet clip engaging the ratchet grooves on the outer circumference of the second piston.