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:
Mar. 31, 1981
Filed:
Nov. 28, 1978
Applicant:
Inventor:
Heinz Lamm, Esslingen-St. Bernhardt, DE;
Assignee:
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 123556 ;
Abstract
A warm-air heating system for motor vehicles driven by an internal combustion engine, which is equipped with a heat-exchanger adapted to be acted upon by atmospheric air for the transfer of heat from a heat carrier that circulates in a line circulatory system, and with a heat-exchanger also interconnected in the line circulatory system which absorbs exhaust gas heat of the internal combustion engine and gives off the heat to the heat carrier; the line circulatory system for the heat carrier of the heating system is thereby in heat-transferring connection at least with the lubricating oil circulatory system of the internal combustion engine.