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:
Jul. 23, 1991
Filed:
Jun. 16, 1989
Applicant:
Inventor:
Richard E Cabral, Tewksbury, MA (US);
Assignee:
Tecogen Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60298 ; 60301 ; 60320 ; 422171 ; 422172 ; 422173 ;
Abstract
A compact cogeneration system in which a catalytic converter is positioned within otherwise unused space in an exhaust gas heat exchanger employed to heat water. Exhaust gases from an internal combustion engine of a packaged cogeneration system are directed through a single- or two-stage catalytic converter in a central cylindrical housing of the heat exchanger, then are diverted to pass in counterflow over a water-containing coil in an annulus surrounding the housing.