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:
Sep. 17, 1991
Filed:
Sep. 09, 1988
Hans Hintennach, Baltmannsweiler, DE;
Dietrich Schmalenbach, Baltmannsweiler, DE;
Other;
Abstract
A heat carrier circulation for a vehicle heating system includes a heater independent of the engine. The heat carrier circulation contains a forward line which leads from the internal combustion vehicle drive engine to a heating system heat exchanger for the vehicle interior and which has a parallel branch in which the heater is disposed; and a return line leading from the heating system heat exchanger back to the internal combustion engine. The heat exchanger circulation contains a connection which goes from the return line to the part of the forward line located ahead of the heater. Installed in the heat carrier circulation is a settable valve which controls the ratio at which heat carrier flows to the heater from the connecting line and from the internal combustion engine.