公开(公告)号：US20180172116A1

公开(公告)日：2018-06-21

申请号：US15846435

申请日：2017-12-19

Applicant: BorgWarner Inc.

Inventor： Paul FREEMANTLE ,  Keith B. COBB ,  Glenn E. SWANSON

IPC: F16H7/08 ,  F16K15/02 ,  F02B67/06

CPC classification number: F16H7/0829 ,  F02B67/06 ,  F16H7/0848 ,  F16H2007/0814 ,  F16H2007/084 ,  F16H2007/0859 ,  F16K15/02 ,  F16K15/044

Abstract: A tensioner moves the flow restriction controlling the tensioner tuning to the nose of the piston through a hole ranging in cross sectional area from 0.01 mm2 to 1.1 mm2. It also eliminates a component from the design of the tensioner. The piston hole geometry is one or a plurality of holes.