Fuel Filter of an Internal Combustion Engine and Heating Sensor Module of a Fuel Filter

摘要

A fuel filter, in particular diesel fuel filter (10), of an internal combustion engine, in particular of a motor vehicle, and a heating sensor module (72) are described. A filter housing (14) has at least one inlet for the fuel to be cleaned and at least one outlet (32) for the cleaned fuel. A filter element (36) is arranged in the inner chamber (20) of the filter housing (14) in such a manner that it separates the at least one inlet from the at least one outlet (32). At least one heating unit (106) for heating the fuel, at least one temperature sensor (110) for detecting a temperature of the fuel and at least one water level sensor (90) for detecting a water level of water separated from the fuel in a water collection chamber (22) are integrated in the heating sensor module (72). At least one heating element (104) of the heating unit (106) is arranged in a heating chamber (102) which, with respect to a fuel flow (118, 120), is located outside the inner chamber (20) of the filter housing (14) between the inlet (74) and an unfiltered side of the filter element (36), and which, at the same time, is bounded by a module housing (80) of the heating sensor module (72).

主权项

1. A fuel filter of an internal combustion engine, comprising:
a filter housing (14) having
an inner chamber enclosed by the housing;at least one inlet (74) for the fuel to be cleaned; andat least one outlet (32) for the cleaned fuel;a water collecting chamber (22); anda heating chamber (102) located with respect to a fuel flow outside of the inner chamber (20) of the filter housing (14) and between the at least one inlet (74) and an unfiltered side of a filter element (36); the filter element (36) arranged within the inner chamber (20) in such a manner that it separates the at least one inlet (74) from the at least one outlet (32); a heating sensor module (72) secured onto the filter housing and extending into the inner chamber enclosed by the housing, the heating sensor module (72) including:
a module housing (80);at least one heating unit (106) adapted for heating fuel within the filter housing;at least one temperature sensor (110) adapted to detect temperature of the fuel in the filter housing;at least one water level sensor (90) arranged within the filter housing and detecting a water level of water separated from the fuel in the water collection chamber (22);at least one heating element (104) adapted to heat fuel, the at least one heating element (104) of the heating unit (106) is arranged within the heating chamber (102) and outside of the inner chamber (20) of the filter housing;wherein the at least one heating unit (106), at least one heating element (104), the at least one temperature sensor (110) and the at least one water level sensor (90) are all integrated together with the heating sensor module (72) as a single component, separate from and installable onto the filter housing; wherein the heating chamber is closed over by and bounded by the module housing (80).