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:
Aug. 31, 2010
Filed:
Apr. 18, 2005
Mario Ricco, Valenzano, IT;
Sisto Luigi DE Matthaeis, Valenzano, IT;
Onofrio DE Michele, Valenzano, IT;
Annunziata Anna Satriano, Valenzano, IT;
Mario Ricco, Valenzano, IT;
Sisto Luigi De Matthaeis, Valenzano, IT;
Onofrio De Michele, Valenzano, IT;
Annunziata Anna Satriano, Valenzano, IT;
C.R.F. Societa Consortile per Azioni, Turin, IT;
Abstract
The injection system has a high-pressure pump () having at least one pumping element () operated reciprocatingly to perform an intake stroke and a delivery stroke. Each pumping element () has a corresponding intake valve () communicating with an intake conduit () supplied by a low-pressure pump (). The intake conduit () is fitted with an on-off solenoid valve () controlled by a control unit () asynchronously with respect to the intake of each pumping element (). And the control unit () may control the on-off solenoid valve () by means of frequency-modulated and/or duty-cycle-modulated control signals (A, C).