Document Type and Number:
Japanese Patent JPS5433601
Kind Code:
B2
Abstract:
A pulsation and noise suppressor assembly with an air filter intended for an induction system in thermodynamic engines. A tubular housing with at least one bracket connecting a filter and its shield to a suppression cartridge unit. Inside the housing is a replaceable cartridge for suppressing pulsations and noise, the latter consisting of minimum one tube with optionally shaped holes made in the tube walls and arranged in rows along the tube generating lines with angular displacement each to another. The holes connecting a tube interior to the outer space. The cartridge tubes are eccentric to each other forming at least two chambers for suppressing noise and pulsation. Each tube wall thickness is proportional to the tube diameter, and each chamber volume is larger than that of the adjacent chamber from its internal side, the cross-section area of the holes being advantageously proportional to the tube diameter.
Application Number:
JP4375676A
Publication Date:
October 22, 1979
Filing Date:
April 19, 1976
Export Citation:
International Classes:
F01N1/00; F01N1/02; F01N1/08; F01N1/10; F01N1/22; F01N7/00; F01N13/18; F02M35/14; F04B39/16