OIL SEAL FOR WATER PUMP Russian patent published in 2023 - IPC F16J15/34 

FIELD: sealing.

SUBSTANCE: invention is aimed at increasing the reliability of the water pump by installing a new type of stuffing box, by creating tightness in the stuffing box due to the snug fit of the ‘ring on ring’ rings; increased wear resistance of the stuffing box during operation The invention relates to a new type of oil seals for a water pump and can be used in pumps for the automotive industry due to the standard size and shape for a seat in the water pump housing. The tightness in the stuffing box is improved by sealing the fit of the friction pair of the ‘ring on ring’ rings, and during the mechanical processing of the ceramic ring, the working part is brought to the mirror state without marks. The wear resistance at high temperatures is increased by using the TAF-40 graphite ring and ceramic ring, which has high strength, hardness and wear resistance. The peculiarity of the assembly and processing of materials, in turn, leads to an increase in the service life and reliability of a stuffing box of a new type, during which multi-step winding of the upper and lower parts of the spring is used with a coil pitch of 2.5 mm, and in the middle part of the spring 9.5 mm, which allows to eliminate vibration in the zone of the ‘ring on ring’ stuffing box.

EFFECT: prevention of radial displacement.

1 cl, 1 dwg