Patent ID: 9556834
Date: 2017-01-31
CPC Classifications: F02B,F02M

Claim:
1. An intake system comprising: a valve seat through which a path is provided to communicate with an intake passage of an internal combustion engine; a plate valve fitting to the valve seat to close the path or separating from the valve seat to open the path; and an elastic sealing member covering the plate valve from both sides in a thickness direction of the plate valve, wherein the plate valve has a valve periphery part and a plurality of through holes passing through the plate valve in the thickness direction at the valve periphery part, the plurality of through holes are arranged as an arrangement pattern in which the plurality of through holes are arranged in zigzag one after another in a peripheral direction of the plate valve to be offset to each other in a direction perpendicular to the peripheral direction and are aligned to form a plurality of rows that extend in the peripheral direction, and the elastic sealing member includes: