Title:
THROTTLE PIPE AND SOUND ARRESTER AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPS6119915
Kind Code:
A
Abstract:
The apparatus includes inlet and outlet tubes (24,20) with a plurality of baffles (28) extending from the inlet and outlet tubes to a housing (26). The outlet tubes (20) has a constricted portion (30) near its inlet end formed with creases (32,34) and lobes (52,54) and a flare (36) at the end. Such constriction increases the housing to outlet tube area ratio of the muffler which results in advantageous attenuation characteristics. The process for making the muffler is simpler than known methods since the outlet tube is formed and baffles pressed onto it in a single step.
Inventors:
UEIN EMU WAGUNA
TEIMASUI EI BESUKU
SUTEIIBUN DEII SHIYUMAIKERU
TEIMASUI EI BESUKU
SUTEIIBUN DEII SHIYUMAIKERU
Application Number:
JP13920985A
Publication Date:
January 28, 1986
Filing Date:
June 27, 1985
Export Citation:
Assignee:
DONALDSON CO INC
International Classes:
B21D41/04; B21D53/86; B60K13/04; F01N1/08; F01N13/18; B21C37/15; (IPC1-7): B21C37/15; B21D53/86; B60K13/04; F01N1/08; F01N7/18
Attorney, Agent or Firm:
Nobuhiko Nakajima