Oil filter module and thermostat unit
An oil filter module ( 10 ) has a connection for a filter element ( 14 ) and an oil-coolant heat exchanger ( 12 ). Arranged in a housing ( 26, 42 ) is a bypass line ( 20 ) for bypassing the oil-coolant heat exchanger ( 12 ). The bypass line ( 20 ) has a valve chamber ( 22 ) with a thermostat unit ( 24 ). The thermostat unit ( 24 ) controls an oil flow through the bypass line ( 20 ) according to a temperature of the oil. The housing is made up at least of a valve housing part ( 26 ) and a heat exchanger housing part ( 42 ). The valve chamber ( 22 ) is arranged in the valve housing part ( 26 ). A base plate ( 40 ) of the heat exchanger housing part ( 42 ) closes the valve chamber ( 22 ) lengthwise.
1. An oil filter module of a filter for oil, comprising:
a connector for a filter element;
an oil-coolant heat exchanger controlling temperature of supplied oil;
a housing in which a bypass line for bypassing the oil-coolant heat exchanger is arranged, the housing including a valve chamber with a thermostat unit;
wherein the thermostat unit controls oil flow through the bypass line depending on the temperature of the oil;
wherein the housing is comprises
at least a valve housing part; and
a heat exchanger housing part;
wherein the valve chamber is arranged in the valve housing part, the valve chamber has a substantially U-shaped profile, an extension direction of legs of the U defining a longitudinal direction;
wherein the valve housing part includes a control chamber;
wherein a control unit is arranged within the control chamber, the control unit including a guide pin extending outwardly in the longitudinal direction away from the control unit in the control chamber;
wherein the guide pin is inserted into a guide pin receptacle in the valve housing and abutting against a stop;
wherein a base plate of the heat exchanger housing part closes off the valve chamber along a longitudinal side.
2. The oil filter module according to claim 1 , wherein
the thermostat unit includes
a mounting plate and
the valve chamber includes
an approximately U-shaped receptacle that extends in transverse direction relative to the longitudinal direction, into which the mounting plate of the thermostat unit is inserted seal-tightly from the open side of the valve chamber,
wherein the base plate of the heat exchanger housing part is resting seal-tightly on the side of the mounting plate facing it,
wherein the mounting plate separates the valve chamber into two chambers.
3. The oil filter module according to claim 2 , wherein
the mounting plate includes
a circular control opening that interacts with a control element,
wherein the control element by means of at least one temperature-dependent wax mixture, is coaxially moveable relative to the control opening for controlling the degree of opening of the thermostat unit as a function of the oil temperature.
4. The oil filter module according to claim 3 , wherein
the control element is cylindrical and its base surface matches the base surface of the control opening so that the control element is movable seal-tightly in the control opening in axial direction.
5. The oil filter module according to claim 3 , wherein
the control opening and the control element on sides that are facing each other are each provided with a circumferentially extending control edge resting seal-tightly on each other for closing the thermostat unit.
6. The oil filter module according to claim 3 , wherein
on the mounting plate a spring cage surrounding the control opening is arranged with a spring element, in particular a spiral pressure spring, which is acting opposite to an expansion direction of the temperature-dependent wax mixture for restoring the control element.
7. The oil filter module according to claim 3 , wherein
the axis of the control opening extends substantially in the longitudinal direction of the valve chamber.
8. The oil filter module according to claim 2 , wherein
the mounting plate and the receptacle are semi-circular or angular.