| 主权项 |
1. An EGR apparatus comprising:
a passage-forming portion which has a space defining a part of an EGR passage through which an exhaust gas is recirculated to an intake passage, the space accommodating a valve body which opens/closes the EGR passage; a driving portion which is arranged in such a manner as not to be in contact with the passage-forming portion, the driving portion generating a driving force to drive the valve body; a passage-side fastening portion which is integrally formed with the passage-forming portion and corresponds to a part of a fastening portion for fastening the passage-forming portion and the driving portion by means of a fastening member; and an arm portion which protrudes from the driving portion and has a first corner portion and a second corner portion in such a manner as not to be in contact with the passage-forming portion and the passage-side fastening portion, the arm portion having a drive-side fastening portion which is a part of the fastening portion and is fastened to the passage-side fastening portion through a heat insulating layer, wherein the valve body is connected to a shaft to form a poppet valve, and the arm portion is U-shaped by the first corner portion and the second corner portion in such a manner as to surround the passage-side fastening portion. |
