Liquid filter with an eccentric liquid discharge channel

摘要

A liquid filter with a replaceable filter insert and a housing having a raw liquid inlet, a central clean liquid outlet, and an eccentric liquid discharge channel. A standpipe extends above the liquid outlet and receives the insert. The insert has an eccentric closing pin. A first positioning arrangement is arranged on the clean liquid outlet and a lower end region of the standpipe so that, when the standpipe is plugged into the clean liquid outlet, the standpipe is guided into a particular position relative to the filter housing. A second positioning arrangement is arranged on the standpipe and the insert so that, when the insert is plugged onto the standpipe, it is guided into a particular position relative to the standpipe. The positioning arrangements are matched to one another so that the closing pin on the insert enters into engagement with the discharge channel in the filter housing.

主权项

1. A liquid filter comprising:
a filter housing and a filter insert exchangeably situated therein, the filter housing having a raw liquid inlet, a central clean liquid outlet, and an eccentric liquid discharge channel, a central standpipe being situated above the clean liquid outlet, the filter insert being plugged onto the standpipe, the filter insert having an eccentric closing pin on its side facing the liquid discharge channel, and positioning means being arranged such that, when the filter insert is plugged onto the standpipe, the positioning means guide the closing pin into engagement with the eccentric liquid discharge channel, the central standpipe being a separate component that connects to the clean liquid outlet by a plug connection, first positioning means arranged on the central clean liquid outlet and on a lower end region of the standpipe that, when the standpipe is plugged into the clean liquid outlet, guide the standpipe into a particular position in the circumferential direction relative to the filter housing, second positioning means arranged on the outer circumference of the standpipe and on the inner circumference of the filter insert that, when the filter insert is plugged onto the standpipe, guide the filter insert into a particular position in the circumferential direction relative to the standpipe, and the first and second positioning means being matched to one another in such a way that the closing pin on the filter insert enters into engagement with the eccentric liquid discharge channel in the filter housing.