The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 1980
Filed:
Apr. 27, 1979
Applicant:
Inventors:
Luigi Franco, Turin, IT;
Giorgio Bertotti, Vinovo, IT;
Assignee:
Centro Ricerche Fiat S.p.A., Orbassano, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
181272 ; 181275 ;
Abstract
An exhaust silencer for an agricultural tractor having a diesel engine with a cylinder capacity 2.5 to 4 liters and developing a power of 50 to 75 HP has a cylindrical body of elliptical cross-section which is closed at each end by an end-wall and is subdivided internally into two resonance chambers and two gas expansion chambers by three dished baffle-plates, the third baffle-plate having two tubular ducts. To optimize the acoustic performance specific dimensions of the chambers, of the ducts, of a perforated induction pipe and of an outlet pipe are prescribed.