Patent ID: 7353794

Claim:
A filter-cooler combination for liquids, in particular lubricating oil of an automotive internal combustion engine, comprising the features the filter is designed as a screw-on cartridge ( 5 ) that contains inlet and outlet openings on an end face and can be detachably screwed onto a connecting element ( 1 ) having first connecting channels that are assigned to the inlet and outlet openings by means of a central thread and are directed at this end face, the connecting element ( 1 ) comprises the cooler ( 2 ) and has second connecting channels ( 14 ) for the inlet and outlet channels for the coolant, directed away from and outside of the filter-cooler combination and the fluid to be filtered has third connecting channels ( 7 ; 3 , 4 â€²), the connecting element ( 1 ) is detachably connectable to the base part with the assignment of the third connecting channels ( 7 ; 3 , 4 â€²) with respect to connecting channels of said base part carrying the connecting element ( 1 ), the connecting element ( 1 ) is detachably connectable to the base part by a tubular threaded connection ( 4 ), which is open on both ends and can be inserted into the connecting element ( 1 ), whereby said threaded connection ( 4 ) has at one end a first thread for screwing the screw-on filter cartridge ( 5 ) onto the base part, and at the other end a second thread for screwing on a connecting channel of the base part of the third connecting channels, permitting a total of two flows, one inlet and one outlet, one connecting channel is formed by the interior space ( 4 â€²) of the threaded connection and the other is formed by a first annular channel ( 7 ) which is situated in an area of a connecting area of the connecting element ( 1 ) directly adjacent to the threaded connection ( 4 ) with which the connecting element ( 1 ) is put under tension on the base part by the threaded connection ( 4 ), whereby the two connecting channels ( 7 , 4 â€²) are surrounded by a peripheral sealing element ( 6 ) by means of which the two connecting channels ( 7 , 4 â€²) in the form of a ring gasket with a connecting element ( 1 ) stretched onto the base part are sealed toward the outside, comprising the features the first annular channel ( 7 ) communicates with the cooler ( 2 ) within the connecting element ( 1 ), the cooler ( 2 ) is designed in the manner of a known stacked-disk oil cooler, the stacked-disk area of the cooler ( 2 ) is situated next to the screw-on filter cartridge ( 5 ) in a plane perpendicular to the central axis of the screw-on filter cartridge ( 5 ) when the cooler ( 2 ) is connected to the connecting element ( 1 ), within the connecting element ( 1 ), a second annular channel ( 8 ) communicates with the oil outflow area of the cooler ( 2 ) through which fluid to be filtered flows and surrounds axially separated from the first ring channel ( 7 ).