Patent ID: 8113171
Filing Date: 2012-02-14
Classification: F02D,G01L

Abstract:
1. An engine intake system comprising a throttle body ( 1 ) having a horizontal intake path ( 2 ), a butterfly type throttle valve ( 5 ) mounted on a valve shaft ( 5 a ) horizontally and rotatably supported by a bearing hole ( 4 ) of the throttle body ( 1 ), the throttle valve ( 5 ) opening and closing the intake path ( 2 ), and a sensor unit ( 16 ) formed by mounting a throttle sensor ( 18 ) and a negative pressure sensor ( 20 ) on a sensor housing ( 17 ) mounted on one side of the throttle body ( 1 ), the throttle sensor ( 18 ) detecting a degree of opening of the throttle valve ( 5 ), the negative pressure sensor ( 20 ) detecting an intake negative pressure of the intake path ( 2 ), and the intake path ( 2 ) and the negative pressure sensor ( 20 ) being connected via a negative pressure transmission path ( 35 ), characterized in that the negative pressure transmission path (