Suction pipe arrangement for a multicylinder internal combustion engine with two banks of cylinders in V formation

US5156117A · kind A · utility

Assignee

• AUDI AG · DE

Inventors

• Robert Muller · Monsheim, DE
• Richard Clos · Oberstenfeld, DE

Key dates

• Filing date: Nov 7, 1991
• Grant date: Oct 20, 1992
• Expiry date: Nov 7, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A suction pipe arrangement for a multicylinder internal combustion engine with two banks of cylinders in V formation has cylindrical intake manifold chamber (2), from which first individual suction pipes (3a to 3d) extend to the first bank of cylinders A and second individual suction pipes (3e to 3h) extend to the second bank of cylinders B. The first individual suction pipes run clockwise and the second individual suction pipes run counterclockwise around the intake manifold chamber and communicate with the latter via first and second openings (8, 9) and (8a, 9a) spaced apart at a given angle. These openings are controlled by a rotary slide valve (10) arranged in the intake manifold chamber. The rotary slide valve has a control slit (16) or (17) for each opening (8 and 9) and a common control slit (18a, 18b), subdivided by a cross member (19), for the openings (8a, 9a). In order to obtain a long swing pipe length, the second openings (9, 9a) are closed in the first position of the rotary slide valve. In order to achieve a short swing pipe length, the rotary slide valve is rotated into its second position, in which the second openings (9, 9a) are freed, but the first openings (8, 8…