| 摘要 |
PCT No. PCT/SE96/00870 Sec. 371 Date Apr. 6, 1998 Sec. 102(e) Date Apr. 6, 1998 PCT Filed Jun. 28, 1996 PCT Pub. No. WO97/03278 PCT Pub. Date Jan. 30, 1997An intake system for internal combustion engines with multiple cylinders, comprising a first air distribution chamber, one separate inlet pipe for each engine cylinder, which inlet pipes extend between the first distribution chamber and the respective inlet valve/valves of the corresponding cylinder, and a second air distribution chamber. The second chamber is connectable to each one of the inlet pipes between the first chamber and the inlet valves via a respective passage which passage can be opened by means of an operable valve. The valves are simultaneously operable between closed and open positions via control means with regard to the speed of the engine. The second air distribution chamber receives inlet air via an adjustable throttle valve. The first air distribution chamber is divided into two volumes, being connectable via an additional openable valve, wherein each volume is connected to the second distribution chamber via at least one resonance pipe. The valve of the first air distribution chamber is maneuverable between closed and open positions via control means with regard to the speed of the engine. |
