公开(公告)号：US20190309831A1

公开(公告)日：2019-10-10

申请号：US16378860

申请日：2019-04-09

Applicant: BorgWarner Inc.

Inventor： Keith B. COBB ,  Mark WIGSTEN ,  Kevin TODD ,  XiaoJian LU ,  Seongdo HONG ,  Paul FREEMANTLE ,  Akira TAKEUCHI

IPC: F16H7/08 ,  F16H25/18

Abstract: Hydraulic tensioner device including a tensioner arm and a hydraulic tensioner. The tensioner arm comprising: a body having a first end, a second end, a chain sliding surface and a surface opposite the chain sliding face; a pivot at the first end or the second end of the body; and a banjo bolt feed at the other of the first end or second end of the body. The hydraulic tensioner being pivotably attached to the pivot and the banjo bolt and adjacent the surface opposite the chain sliding face, wherein the hydraulic tensioner receives supply fluid from the banjo bolt, the hydraulic tensioner comprising: a housing with a bore; a hollow piston having a first end and a second end, slidably received within the bore; and a spring received within the bore of the housing and the hollow piston biasing the hollow piston outwards from the bore of the housing.

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