Patent number: 10738861

Control of hydraulic tensioner tuning using hole size in piston nose

Original Assignee: BorgWarner Inc.

Field of technology: Vehicles, Engines and Transportation

Patent granted on: Tue, 11 Aug 2020

Patent drawing


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.