Filtering arrangement for internal combustion engines

摘要

A filtering arrangement for internal combustion engines, especially for filtering fuel and oil which comprises at least two filtering units arranged in housing means, each filtering unit having a filtering insert. The medium to be filtered enters the filtering units between the filter housing means and the filtering inserts. The filtering arrangement is provided with an inlet and outlet connection common to all filtering units. A change-over valve is built into these inlet and outlet connections in such a way that the filtering units can individually and/or together be placed into communication with the inlet and outlet connection and with a discharge connection communicating with the lowermost areas of the interior of the filter housing means and being controlled by a shut-off valve. This shut-off valve is coupled directly to the change-over valve in such a way that the interior of the filter housing means of that filter unit which is disconnected from the inlet and outlet connection communicates with the discharge connection.