| US 7,473,353 B2 | ||
| Fuel filter of an internal combustion engine | ||
| Riccardo Carlo Giolitti, Turin (Italy); Dierk Hoffmann, Stuttgart (Germany); and Thomas Weiser, Aspach (Germany) | ||
| Assigned to Mahle Filtersysteme GmbH, Stuttgart (Germany) | ||
| Appl. No. 10/580,931 PCT Filed Aug. 31, 2005, PCT No. PCT/DE2005/001519 § 371(c)(1), (2), (4) Date May 30, 2006, PCT Pub. No. WO2006/024280, PCT Pub. Date Mar. 09, 2006. |
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| Claims priority of application No. 10 2004 042 245 (DE), filed on Sep. 01, 2004. | ||
| Prior Publication US 2007/0114160 A1, May 24, 2007 | ||
| Int. Cl. F02M 37/22 (2006.01) | ||
| U.S. Cl. 210—86 [210/167.01; 210/299; 210/416.4] | 8 Claims |
| 1. A fuel filter (2) having a filter housing of an internal combustion engine in which water separated from the fuel may collect inside the filter
(2), in which a liquid line (3) leads from an area of the filter housing, which is exposed to fuel and where water that is separated can settle out due
to gravity, to a water collecting chamber (4) situated outside the filter housing,wherein
a connection line (5) is configured to deliver separated fuel from an upper area of the water collection chamber (4) to an area of a fuel delivery line (1), that is downstream of the filter (2) and upstream of the internal combustion engine, to mix with fuel that has directly exited the filter (2).
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