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US 4,727,907 AGranted
Turbulator with integral flow deflector tabs
AssigneeDunham-Bush, Inc.
InventorDonald C. Duncan
Life of this patent
Estimating the term…
Abstract
A turbulator for insertion in a heat exchange pipe in the form of a flattened hollow cylindrical metal tube with adjacent flats offset by 90.degree. and separated by integral tubular transition portions of generally triangular plane configuration. An elongated tab is partially struck out of each flat forming a fluid passage hole leading from one side of the turbulator to the other side.
Claims7
An improved turbulator for insertion in a heat exchanger pipe having a substantially straight longitudinal internal wall, said turbulator comprising:
- a cylindrical metal tube being flattened at longitudinally spaced positions along said tube to form flats offset circumferentially by 90.degree., and hollow tubular transition portions of said tube connecting said flats together said transition portions being of generally triangular shape in plan configuration, and an elongated tab partially struck out of each flat at an acute angle to the plane of the flat and defining a fluid passage hole within each flat leading from one side of the turbulator to the other.
Dependencies are inferred from the claim text.