UNIT OF COMBINED OIL FILTER AND RESTRICTOR Russian patent published in 2020 - IPC F01M1/10 F01M11/03 F01L1/24 

FIELD: machine building.

SUBSTANCE: invention relates to oil filters and restrictors. Disclosed is unit 5, 105 of combined oil filter and restrictor containing oil flow restrictor 30 installed between first and second filters 41 and 42 so that, regardless of oil flow direction through restrictor 30, solid particles could not get into hole 32 of small diameter in body 31 of restrictor 30, which reduces probability of restrictor clogging. Unit 5, 105 of combined oil filter and restrictor comprises metal threaded element 10, by means of which unit 5 of combined oil filter and restrictor can be easily and quickly installed into component or removed from component, such as cylinder head 50 of engine 100 with variable working volume. Unit 5, 105 of combined oil filter and restrictor can be used to provide limited oil flow from channels 60a, 60b; 70a, 70b oil supply for signal oil channels 65, 75, used to control operation of disconnected hydraulic controllers D1, D2; D3, D4 to clean signal oil channels 65, 75, when hydraulic controllers D1, D2 are disconnected; D3, D4 are not disconnected.

EFFECT: invention provides filtration of oil passing through an oil restrictor regardless of oil flow direction.

14 cl, 10 dwg