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:
May. 13, 2008
Filed:
Nov. 21, 2003
Applicants:
Matthias Delp, Regensburg, DE;
Gerhard Eser, Hemau, DE;
Inventors:
Matthias Delp, Regensburg, DE;
Gerhard Eser, Hemau, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the low pressure zone () of a fuel injection system a fuel pressure damper () is provided which dampens pressure variations, especially such pressure variations that are caused by operation of a high-pressure fuel pump () mounted downstream of the low pressure zone (). In the low pressure zone (), the pressure profile is detected by a pressure sensor (). The high-frequency components of the pressure profile detected by the pressure sensor () can be used to ascertain whether the fuel pressure damper () functions properly.