Intake manifold
AssigneeToyota Boshoku Kabushiki Kaisha
InventorKunitaka MAEDA
Life of this patent
Estimating the term…
Abstract
The intake manifold includes an intake air introduction port, a surge tank and a plurality of intake pipes. The intake air introduction port is connected to one end side of the surge tank in a direction in which the intake pipes are arranged. The surge tank is provided with a stepped portion over the direction in which the intake pipes are arranged. The stepped portion has an erected wall erected from a surface of the surge tank and connected to the plurality of intake pipes, and a curved wall connecting a tip side of the erected wall and the surface of the surge tank. Further, the surge tank is provided with a concave portion recessed toward the stepped portion at an intermediate portion in the direction in which the intake pipes are arranged.
Claims4
An intake manifold comprising:
- an intake air introduction port;
- a surge tank into which intake air is introduced from the intake air introduction port;
- and
- a plurality of intake pipes branching from the surge tank and arranged side by side so as to surround the surge tank, the intake air introduction port being connected to one end side of the surge tank in a direction in which the intake pipes are arranged,
- wherein the surge tank is provided with a stepped portion over the direction in which the intake pipes are arranged,
- wherein the stepped portion has an erected wall erected from a surface of the surge tank and connected to the plurality of intake pipes, and a curved wall connecting a tip side of the erected wall and the surface of the surge tank, and
- wherein the surge tank is provided with a concave portion recessed toward the stepped portion at an intermediate portion in the direction in which the intake pipes are arranged.
Dependencies are inferred from the claim text.