Fuel filter insert having a pre- and a main filter element, and a fuel filter

US10240565B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Christoph Baumann · Heubach, DE
• Idriss Razgani · Ludwigsburg, DE
• Jonas Eble · Zell am Harmersbach, DE
• Lars Spelter · Ditzingen, DE
• Christopher M. Mueller · Pflugerville, US

Key dates

• Filing date: Mar 10, 2016
• Grant date: Mar 26, 2019
• Expiry date: Jun 9, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/347
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A fuel filter insert for a fuel filter including: a pre-filter element having a upper and lower end plate, the end plates arranged on opposing ends of filter medium of the pre-filter element; a main filter element having upper and lower end plates, the end plates arranged on opposing ends of filter medium of the main filter element; wherein the pre-filter element and the main filter element as arranged one above the other in a direction of a longitudinal axis of the fuel filter insert; wherein at least one of the filter elements is through-flowable from the outside to the inside by fuel in a radial direction relative to the longitudinal axis; and a flow channel for the fuel pre-filtered by the pre-filter element; wherein the flow channel is arranged to extend in the axial direction between the pre-filter element and the main filter element.