Intake device
An intake duct that includes a first flange projecting outward from an edge of the intake duct on a throttle body side. An intake manifold that includes a second flange projecting outward from an edge of the intake manifold on a throttle body side. A plurality of spacers is provided between the first flange and the second flange around the throttle body. The first flange and the second flange are fastened via the plurality of spacers in a state where the throttle body is held between the intake duct and the intake manifold.
1. An intake device comprising:
a throttle body comprising a throttle valve;
an intake duct disposed on one side of the throttle body; and
an intake manifold disposed on the other side of the throttle body,
wherein
the intake duct comprises a first flange projecting outward from an edge of the intake duct on the throttle body side,
the intake manifold comprises a second flange projecting outward from an edge of the intake manifold on the throttle body side,
a plurality of spacers is disposed between the first flange and the second flange distributed around and spaced from the throttle body and is not in contact with the throttle body, and
the first flange and the second flange are fastened via the plurality of spacers in a state where the throttle body is held between the intake duct and the intake manifold.
2. The intake device according to claim 1 , further comprising: a gasket disposed between the intake duct and the throttle body.
3. The intake device according to claim 1 , wherein the throttle body is constituted of resin.
4. The intake device according to claim 1 , wherein a hollow portion is provided in the throttle body, and at least one of the plurality of spacers is located in the hollow portion.
5. The intake device according to claim 1 , wherein each of the spacers includes a respective insertion hole in which a respective bolt is inserted, and wherein the first flange and the second flange are fastened via the plurality of spacers by the respective bolt inserted in the respective insertion hole of each of the spacers.
6. The intake device according to claim 5 , wherein each said insertion hole has a respective sleeve inserted therein, and wherein the respective bolt inserted in each insertion hole is inserted in the sleeve of the insertion hole.
7. The intake device according to claim 1 , wherein each of the spacers has a substantially cylindrical shape.
8. The intake device according to claim 1 , wherein each of the spacers is configured as a separate member with respect to each other and with respect to the throttle body.
9. The intake device according to claim 1 , wherein each of the spacers comprises a substantially cylindrical outer surface free of contact with respect to each other and with respect to the throttle body.
10. The intake device according to claim 9 , wherein the substantially cylindrical outer surface of each spacer is free of contact.
11. The intake device according to claim 9 , wherein the substantially cylindrical outer surface of each spacer is surrounded by a clearance.
12. The intake device according to claim 9 , wherein:
each of the spacers extends longitudinally between the intake duct and intake manifold; and
each of the spacers comprises a first end surface abutting the intake duct and a second end surface abutting the intake manifold.
13. The intake device according to claim 12 , wherein the substantially cylindrical outer surface extends longitudinally from the first end surface to the second end surface.