Air intake system of an internal-combustion engine
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorErwin Rutschmann
Life of this patent
Estimating the term…
Abstract
An air intake system has two resonance chambers coupled together by connecting pipes. The resonance chambers are connected to the cylinders by individual intake pipes. A further common chamber is coupled by means of resonance pipes to the resonance chamber. The connecting pipe and several of the resonance pipes have controllable blocking elements. A branch that supplies air to the system is connected with one of the connecting pipes and the further chamber. To deliberately increase the mean pressure, the blocking elements can be connected in cascade fashion as the rpm rises, causing the coupled volume to increase.
Claims21
Air intake system of a multicylinder two-row internal combustion engine, with the cylinders of both rows each being connected by intake pipes to a resonance chamber associated with the respective row, and with at least one connecting pipe running between the resonance chambers, into which fresh air flows and which has at least one controllable blocking element, wherein each cylinder is provided with at least one separate corresponding resonance pipe, each of said resonance pipes being arranged to extend from one of said resonance chambers to a common chamber which is common to the resonance pipes and provided with a fresh air inlet, and wherein a controllable blocking element is located in at least one of the resonance pipes.
Air intake system of a multicylinder two-row internal combustion engine, with the cylinders of both rows each being connected by intake pipes to a resonance chamber associated with the respective row, and with a first connecting pipe extending between the resonance chambers, into which fresh air flows, and a second connecting pipe extending between the resonance chambers in parallel with said first connecting pipe and having at least one controllable blocking element, wherein at least one resonance pipe is associated with each cylinder, said resonance pipes being arranged to extend from resonance chambers of one row of cylinders to a common chamber which is common to the resonance pipes and which is provided with a fresh air inlet, and wherein a controllable blocking element is located in at least one of the resonance pipes associated with one row of cylinders.
Air intake system of a multicylinder two-row internal combustion engine, with the cylinders of both rows each being connected by intake pipes to a resonance chamber associated with the respective row, and with at least one connecting pipe running between the resonance chambers, into which fresh air flows and which has at least one controllable blocking element, wherein at least one resonance pipe is associated with each cylinder, said resonance pipes being arranged to extend from resonance chambers of one row of cylinders to a common chamber which is common to the resonance pipes and which is provided with a fresh air inlet, wherein a controllable blocking element is located in at least one of the resonance pipes associated with one row of cylinders, and wherein at least two resonance pipes of each row of cylinders have diameters different from one another.
Air intake system of a multicylinder two-row internal combustion engine, with the cylinders of both rows each being connected by intake pipes to a resonance chamber associated with the respective row, and with at least one connecting pipe running between the resonance chambers, into which fresh air flows and which has at least one controllable blocking element, wherein at least one resonance pipe is associated with each cylinder, said resonance pipes being arranged to extend from resonance chambers of one row of cylinders to a common chamber which is common to the resonance pipes and which is provided with a fresh air inlet, wherein a controllable blocking element is located in at least one of the resonance pipes associated with one row of cylinders, and wherein an additional resonance pipe is associated with each cylinder, said additional resonance pipe extending from the cylinders to the common chamber, bypassing the resonance chambers.
Dependencies are inferred from the claim text.