Two stage fuel water separator and particulate filter utilizing pleated nanofiber filter material

US8517185B2 · kind B2 · utility

Assignee

• Cummins Filtration IP, Inc. · US

Inventors

• Mark T. Wieczorek · Cookeville, US
• Terry W. Shults · Cookeville, US
• William C. Haberkamp · Cookeville, US
• Jonathan D. Sheumaker · Cookeville, US
• Barry M. Verdegan · Stoughton, US
• Christopher E. Holm · Madison, US
• Brian W. Schwandt · Fort Atkinson, US

Key dates

• Filing date: Jun 22, 2010
• Grant date: Aug 27, 2013
• Expiry date: Jul 30, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/295
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A water separator and particulate filter with a first or outer stage configured to coalesce water from fluid such as fuel, and a second or inner stage configured to separate coalesced water from the fluid and also remove fine solid contaminants from the fluid. The coalescing stage includes a pleated cylinder of polymeric media. The pleated cylinder has pleat valleys and downstream pleat tips, and release sites defined at the downstream pleat tips. The separator stage includes a non-pleated cylinder of polymeric media surrounding and in contact with outer pleat tips of a multi-layer pleated cylinder.