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:
Apr. 21, 1992
Filed:
Jun. 07, 1991
Applicant:
Inventor:
Pietro Piccini, Collegno, IT;
Assignee:
Fiat Auto SpA, Turin, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123 / ;
Abstract
A differentiated intake system for multicylinder internal combustion engines in which the high-speed inlet pipes and the low-speed inlet pipes communicate with two separate high-speed and low-speed manifolds, respectively. Communication between the cylinders and the low-speed and high-speed pipes is controlled by a deflector valve, there being a single first butterfly valve at the inlet of the high-speed manifold and a plurality of second butterfly valves each in a respective low-speed inlet pipe. The first and second butterfly valves are operated simultaneously by means of a common actuator device.