公开(公告)号：US20230349307A1

公开(公告)日：2023-11-02

申请号：US18187348

申请日：2023-03-21

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takashi KASHIWABARA ,  Yuki TSUKAGOSHI

IPC: F01M13/04

CPC classification number: F01M13/0416

Abstract: A blowby gas return apparatus is provided that achieves inhibition of condensation of water vapor in blowby gas in branched return passages. A blowby gas return apparatus that returns blowby gas generated in an engine having a plurality of cylinders to an intake system of the engine includes a distribution portion inside a head cover of the engine, and distributes the blowby gas to intake paths of the cylinders. The distribution portion includes an introduction portion through which the blowby gas is introduced and a plurality of branch passages communicating with the introduction portion, plurality of branch passages branching from the introduction portion to communicate with the intake paths.