| 摘要 |
PROBLEM TO BE SOLVED: To provide a suction device of an engine, which suction device can easily form a pressure introducing passage, and further to provide a device unit. SOLUTION: An engine body 5 forming bores 7 of the engine comprises a throttle body 2 provided with a throttle valve 14, and a device unit 3 formed by modularizing a pressure sensor 54 on a device block 50 to be provided on the engine body 5. The engine body 5 is provided with a pressure intake port 38 opened to the bores 7, and a sampling passage 39 which is communicated with the pressure intake port 38 and is opened to the mounting surface 26a facing to the device block 50. The device block 50 is provided with a pressure detecting port 78 opened to a mounting surface 50a, which has the pressure detecting portion 54b of the pressure sensor 54 arranged thereon and faces to the engine body 5. A pressure introducing passage 187 communicating from the sampling passage 39 to the pressure detecting port 78 is formed by joining the mounting surface 26a of the engine body 5 and the mounting surface 50a of the device block 50. COPYRIGHT: (C)2008,JPO&INPIT
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