AERODYNAMIC SILENCER OF INDUSTRIAL VACUUM CLEANER Russian patent published in 2018 - IPC F01N1/04 

Abstract RU 2670482 C2

FIELD: acoustics.

SUBSTANCE: invention relates to the noise suppression equipment. Silencer contains a body consisting of a cylindrical shell rigidly connected to end round plates having inlet and outlet branch pipes, herewith in the body, perpendicular to the aerodynamic flow direction, there are at least three jet chambers formed by round discs with holes, wherein the openings in the discs are alternately displaced relative to the body axis in such a way, that the openings in two adjacent discs do not coincide, at the same time, three successively connected reactive chambers are connected to the inlet pipe of the body, and also through the central opening of the sound-absorbing chamber to the outlet pipe, moreover, the sound-absorbing chamber is formed by a cylindrical shell, an end round plate with an outlet nozzle and a disk with a central hole coaxial with the body, and the inner surfaces of the sound-absorbing chamber are lined with a sound-absorbing annular element mounted coaxially to the cylindrical body, and the round plate with an outlet and the disk with a central hole are lined with a sound-absorbing circular element. Said body is made of structural materials, with a layer of soft vibration-damping material deposited on its surface on one or both sides. In the jet chambers, sound-absorbing ring elements are installed coaxially to the cylindrical body.

EFFECT: higher efficiency of noise suppression.

1 cl, 3 dwg

Similar patents RU2670482C2

Title Year Author Number
INDUSTRIAL VACUUM CLEANER MULTI-CHAMBER SOUND SUPPRESSOR 2015
  • Stareeva Mariya Mikhajlovna
RU2657986C2
INDUSTRIAL VACUUM CLEANER NOISE SILENCER 2015
  • Stareeva Mariya Mikhajlovna
RU2646667C2
INDUSTRIAL VACUUM CLEANER NOISE COMBINED SILENCER 2015
  • Stareeva Mariya Mikhajlovna
RU2646661C2
ACTIVE AERODYNAMIC NOISE SUPPRESSOR 2015
  • Stareeva Mariya Mikhajlovna
RU2647006C2
INDUSTRIAL VACUUM CLEANER ACTIVE NOISE SUPPRESSOR 2015
  • Stareeva Mariya Mikhajlovna
RU2658900C2
SHOP VACUUM CLEANER NOISE SUPPRESSOR 2015
  • Stareeva Mariya Olegovna
RU2611214C1
AERODYNAMIC SILENCER OF INDUSTRIAL VACUUM CLEANER 2015
  • Stareeva Anna Mikhajlovna
RU2670481C2
REACTIVE NOISE SUPPRESSOR 2015
  • Stareeva Mariya Mikhajlovna
RU2658899C2
INDUSTRIAL VACUUM CLEANER MULTI-CHAMBER SOUND SUPPRESSOR 2015
  • Stareeva Anna Mikhajlovna
RU2658897C2
INDUSTRIAL VACUUM CLEANER NOISE SILENCER 2015
  • Stareeva Anna Mikhajlovna
RU2647930C2

RU 2 670 482 C2

Authors

Stareeva Mariya Mikhajlovna

Dates

2018-10-23Published

2015-09-08Filed