# US 2013/0153475 A1 · Oil Filter Module and Thermostat Unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153475 A1 - Document ID: US20130153475A1 - Status: Published application - Kind: A1 - Application number: 13/769,789 - Filed: 2013-02-18 - Published: 2013-06-20 - Earliest claimed: 2010-08-18 - Assignees: Mann+Hummel GmbH - Inventors: Herbert Jainek - Web page: https://patentgrep.com/patent/US20130153475A1 ## CPC - F01M 11/03: Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D) - B01D 35/147: Bypass or safety valves - B01D 35/18: Heating or cooling the filters - B01D 35/30: Filter housing constructions - F01M 5/007: {Thermostatic control} - F01M 2011/033: {comprising coolers or heat exchangers} - F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract 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. ## Claims ### Claim 1 An oil filter module (10) of a filter for oil, comprising: a connector for a filter element (14); an oil-coolant heat exchanger (12) controlling temperature of supplied oil; a housing (26, 42) in which a bypass line (20) for bypassing the oil-coolant heat exchanger (12) is arranged, the housing including a valve chamber (22) with a thermostat unit (24); wherein the thermostat unit (24) controls oil flow through the bypass line (20) depending on the temperature of the oil; wherein the housing is comprises at least a valve housing part (26); and a heat exchanger housing part (42); wherein the valve chamber (22) is arranged in the valve housing part (26); wherein the valve housing part (26) includes a control chamber (36); wherein a control unit (62) arranged within the control chamber (36), the control unit (62) including a guide pin (64) extending outwardly away from the control unit (62); wherein the guide pin (64) is inserted into a guide pin receptacle in the valve housing (26) and abuting against a stop; wherein a base plate (40) of the heat exchanger housing part (42) closes off the valve chamber (22) along a longitudinal side. ### Claim 2 (depends on 1) The oil filter module according to claim 1, wherein the valve chamber (22) has a substantially U-shaped profile. ### Claim 3 (depends on 1) The oil filter module according to claim 1, wherein the thermostat unit (24) includes a mounting plate (52) and the valve chamber (22) includes an approximately U-shaped receptacle (50) that extends in transverse direction, into which the mounting plate (52) of the thermostat unit (24) is inserted seal-tightly from the open side of the valve chamber (22), wherein the base plate (40) of the heat exchanger housing part (42) is resting seal-tightly on the side of the mounting plate (52) facing it, wherein the mounting plate separates the valve chamber into two chambers. ### Claim 4 (depends on 3) The oil filter module according to claim 3, wherein the mounting plate (52) includes a circular control opening (56) that interacts with a control element (68), wherein the control element (68) by means of at least one temperature-dependent expansion material, in particular a wax mixture (66), is coaxially moveable relative to the control opening (56) for controlling the degree of opening of the thermostat unit (24) as a function of the oil temperature. ### Claim 5 (depends on 4) The oil filter module according to claim 4, wherein the control element (68) is cylindrical and its base surface matches the base surface of the control opening (56) so that the control element (68) is movable seal-tightly in the control opening (56) in axial direction. ### Claim 6 (depends on 4) The oil filter module according to claim 4, wherein the control opening (56) and the control element (68) on sides that are facing each other are each provided with a circumferentially extending control edge (70, 72) that can rest seal-tightly on each other for closing the thermostat unit (24). ### Claim 7 (depends on 4) The oil filter module according to claim 4, wherein on the mounting plate (52) a spring cage (58) surrounding the control opening (56) is arranged with a spring element, in particular a spiral pressure spring (60), which is acting opposite to an expansion direction (65) of the expansion material (66) for restoring the control element (68). ### Claim 8 (depends on 4) The oil filter module according to claim 4, wherein the axis of the control opening (56) extends substantially in the longitudinal direction of the valve chamber (22). ### Claim 9 (depends on 3) The oil filter module according to claim 3, wherein the mounting plate (52) and the receptacle (50) are semi-circular or angular. ### Claim 10 (depends on 1) A thermostat unit (24) of a filter module (10) according to claim 1, wherein the thermostat unit includes a mounting plate (52) that is designed such that it can be inserted seal-tightly from a side, open in the longitudinal direction, of a valve chamber (22) of the oil filter module (10) into an approximately U-shaped receptacle (50) and a base plate (40) of a heat exchanger (12) of the oil filter module (10) can be placed seal-tightly onto the side of the mounting plate (52) facing it.