Patent ID: 8635984

Claim:
An oil module of a water-cooled combustion engine, the oil module comprising: an oil filter with a housing; an additional functional module that is attachable to the housing; a water pump; and a thermostat valve which selects a water circulation flowpath from various water circulation flowpaths, dependent upon the temperature of cooling water flowing through the housing, a plurality of channels, one of which is a water channel formed in the housing, wherein the water channel begins behind the thermostat valve and extends in the direction of flow of the cooling water inside the oil module and leads to the suction side of the water pump; wherein the water channel runs along two sides of the housing that are angled relative each other, and is an open channel for at least a portion of its length along the surface of the housing, the water channel being closable by means of a cover, such that the cover and the water channel in the housing form a water channel with a circumferentially closed cross-section.