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. 13, 1988
Filed:
Sep. 10, 1987
Applicant:
Inventors:
Gerhard Fraenkle, Remshalden, DE;
Peter Joppig, Korb, DE;
Assignee:
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123510 ; 123557 ; 1231 / ;
Abstract
A low pressure fuel circulation with fuel preheating for an air-compressing injection-type internal combustion engine, preferably for commercial vehicles, in which a heat-exchanger and a by-pass by-passing the fine filter and having an excess pressure valve opening in dependence on a predetermined maximum pressure acting on the fine filter as a result of paraffin formation is arranged in an inlet line leading to a high pressure injection pump.