| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem in a conventional blowby gas treatment method that, upon idling, new air provided from a throttle upstream side is caused to flow to a throttle downstream side via the interior of an engine to control a PCV valve disposed on a channel communicating with the throttle downstream side from the engine side, and therefore, when blowby gas is generated in a large amount, the interior of a crank chamber occasionally takes positive pressure and there is a risk of oil leakage. <P>SOLUTION: The blowby gas treatment apparatus includes: a new air introduction path which makes a blowby chamber for filling blowby gas into the engine communicate with the throttle body upstream side; a blowby gas path which makes the blowby chamber communicate with the throttle body downstream side; a new air control valve disposed on the new air introduction path; a flow rate control valve disposed on the blowby gas path; and a control device which controls the new air control valve and the flow rate control valve so as to stabilize the number of rotation of idling. <P>COPYRIGHT: (C)2013,JPO&INPIT |
