Patent · US Active

Filter mechanism for internal combustion engines

US8888882B2 · kind B2 · utility

12Cited by

1References

15Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Steffen Ackermann · Speyer, DE
Ralf Bauder · Ketsch, DE
Duc Cuong Nguyen · Laatzen, DE

Key dates

Filing date	Jul 26, 2012
Grant date	Nov 18, 2014
Priority date	—
Expiry date	May 3, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M35/024
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device (10) for an internal combustion engine includes a separator that is embodied as a cyclone preseparator (26), a main filter element (36) exchangeably arranged in a housing compartment (68) of the filter housing (12), and a secondary filter element (38. The housing compartment (68) includes insertion stays (64). The main filter element (36) is embodied in as a double bellows filter including a first radially inwardly positioned filter bellows (40) and a second radially outwardly positioned filter bellows (42) surrounding it. Upon closing of a servicing housing cover (18) a sealing force is generated that acts onto the main filter element (36) and is maintained in the closed state of the servicing cover (18).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.