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:
Feb. 18, 2003
Filed:
Mar. 22, 2002
Applicant:
Inventors:
Assignee:
C.R.F. Societa Consortile per Azioni, Turin, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 9/02 ; F01L 1/300 ;
U.S. Cl.
CPC ...
F01L 9/02 ; F01L 1/300 ;
Abstract
In an internal combustion engine comprising an hydraulic system for the variable driving of valves, one tappet comprises two separate piston sections that are connected to two distinct pressure chambers, which control the driving pistons of two separate valves of the same engine cylinder.