| 摘要 |
PROBLEM TO BE SOLVED: To provide a breather system of an internal combustion engine which preferably performs gas-liquid separation of a blow-by gas.SOLUTION: A breather system 1 of an internal combustion engine includes: a breather chamber R2 provided at an upper part of a head cover 14; and guide passages R1a, R1b which are provided at the upper part of the head cover 14 and connect breather passages R0a, R0b, in which a blow-by gas circulates, with the breather chamber R2. The breather chamber R2 includes: a first gas-liquid separation chamber R2a connected with the guide passages R1a, R1b; a second gas-liquid separation chamber R2b connected with an intake passage; and a communication passage R2c which connects the first gas-liquid separation chamber R2a with the second gas-liquid separation chamber R2b. The breather system 1 of the internal combustion engine further includes: a PCV valve 41 provided at the communication passage R2c; and a one-way valve 42 which is provided at the other end part of the second gas-liquid separation chamber R2b when viewed in a cylinder row direction. The second gas-liquid separation chamber R2b includes a revolving part 61 for revolving the blow-by gas. |
