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:
Jan. 07, 2003
Filed:
Jan. 18, 2001
Applicant:
Inventors:
Pierpaolo Antonioli, Piossasco, IT;
Sara Sottano, Pinerolo, IT;
Cristiana Davide, Turin, IT;
Massimo Osella, Bruino, IT;
Assignee:
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 4/100 ;
U.S. Cl.
CPC ...
F02M 4/100 ;
Abstract
A method of assessing operation of a common-rail injection system of an internal combustion engine; the injection system having a number of injectors, a high-pressure circuit supplying high-pressure fuel to the injectors, and a low-pressure circuit supplying fuel to the high-pressure circuit; and the method including the steps of hydraulically isolating the high-pressure circuit from the low-pressure circuit and the engine; and assessing operation of the injection system as a function of the fuel pressure drop in the high-pressure circuit.