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AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsErwin Rutschmann, Wolfgang Horlacher
Estimating the term…
Two-bank internal-combustion engine, per cylinder bank air intake system has, per cylinder bank, one resonance container and, centered thereto, has another container. By way of suction pipes, the resonance containers are connected to the cylinders and are provided with connecting pipes among one another, with fresh air entering into one of these. Suction pipe extensions are connected to the other containers, and extend partially in the resonance containers while being aligned at a distance with the inflow funnels of the suction pipes. The combination of the connecting pipes acting as a resonance pipe with the suction pipe extensions acting as a ram pipe causes a mean pressure increase, whereby the torque as well as the power of the internal-combustion engine are increased.
Air intake system of a multi-cylinder internal-combustion engine, comprising two opposite cylinder banks, cylinders of one respective cylinder bank being connected by suction pipes to a respective resonance container associated therewith, the resonance containers being combined by a connecting pipe and having suction pipe extensions extending in sections inside the respective resonance container with sliding sleeves which, as a function of operating parameters of the internal-combustion engine, are adjustable between inlet openings of the suction pipes from a first spaced position into a second non-spaced position, wherein a plurality of sliding sleeves of one cylinder bank are combined to form a constructional unit configured to cooperate with an adjusting device, and the sliding sleeves surround the suction pipe extension sections configured constructed as inserts.
Dependencies are inferred from the claim text.