CRANKCASE OIL SUMP PLUG Russian patent published in 2025 - IPC F01M11/04 F16N31/00 

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in means of emptying lubrication systems from liquid lubricant substances. Crankcase oil sump plug (1) is composed of steel cylinder with outer thread (4), hose adapter and hose section. In lower base of plug (1) there drilled is longitudinal hole forming walls divided into even number of equal sectors. Sectors are removed next but one, thus forming alternating teeth (2) and slots (3) of equal size in circumferential direction. Groove (5) for annular sealing gasket from oil-resistant rubber is cut across plug (1) along its circumference. Magnet (6) is secured atop plug (1). On the lower plane of plug (1) there is hole (7) for a screw holding the protective plug. Hose nozzle is made in the form of nozzle with external thread. In the threaded end of the nozzle there are grooves, the depth of which is twice less than the grooves on plug (1). Hose piece is put on hose nozzle. Connecting pipe is made with possibility of insertion of teeth into slots (3) of plug (1) and its turn by thread at turning of the connecting pipe. Slots of plug (1) are made with possibility of passage of drained oil in nozzle and hose.

EFFECT: safe replacement of oil and prevention of its splashing.

1 cl, 2 dwg