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:
Apr. 05, 1977
Filed:
Sep. 29, 1975
Applicant:
Inventor:
Heinz Pichl, Uppsala, SW;
Assignee:
AB Volvo Penta, Goteborg, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60298 ; 60307 ; 60310 ; 60314 ; 115 73 ;
Abstract
In an outboard motor having an engine located above the water level, a lower unit is provided extending downwardly from the engine and includes an exhaust gas tube within the lower unit with its lower end positioned below the water level. Laterally enclosing the exhaust gas tube is a liquid jacket and a heat insulating jacket is positioned between the exhaust gas tube and the liquid jacket for maintaining the temperature of the exhaust gases at a level such that an afterburning of any oil residue in the exhaust gases is achieved before the gases are discharged from the exhaust gas tube.