Intake manifold
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsMasato FUKUI, Kazuki OTA
Life of this patent
Estimating the term…
Abstract
A first downstream part of an intake manifold has a first downstream passage configured to communicate with an intake port of a first cylinder head. A second downstream part of the intake manifold has a second downstream passage configured to communicate with an intake port of a second cylinder head. An upstream part is coupled to the first downstream part and the second downstream part. The upstream part is arranged upstream from the first and second downstream parts in the flow direction of intake air and has a first upstream passage and a second upstream passage. The material of the first downstream part and the material of the second downstream part both have higher rigidity than the material of the upstream part.
Claims4
An intake manifold that is arranged between a first cylinder head of a first bank and a second cylinder head of a second bank in a V-type internal combustion engine and configured to supply intake air from an exterior to an intake port of the first cylinder head and an intake port of the second cylinder head, the intake manifold comprising:
- a first downstream part, which is configured to be coupled to the first cylinder head and has a first downstream passage configured to communicate with the intake port of the first cylinder head;
- a second downstream part, which is configured to be coupled to the second cylinder head and has a second downstream passage configured to communicate with the intake port of the second cylinder head;
- and
- an upstream part, which is arranged upstream from the first and second downstream parts in a flow direction of the intake air and coupled to the first and second downstream parts, the upstream part having a first upstream passage that communicates with the first downstream passage and a second upstream passage that communicates with the second downstream passage,
- wherein a material of the first downstream part and a material of the second downstream part both have a higher rigidity than a material of the upstream part.
An intake manifold configured to be coupled to a first bank and a second bank of a V-type internal combustion engine, the intake manifold comprising:
- a first downstream passage member, which has a downstream end configured to be coupled to the first bank and an upstream end on an opposite side to the downstream end;
- a second downstream passage member, which has a downstream end configured to be coupled to the second bank and an upstream end on an opposite side to the downstream end;
- and
- an upstream passage member, which is directly or indirectly coupled to the upstream end of the first downstream passage member and the upstream end of the second downstream passage member, wherein
- the first downstream passage member, the second downstream passage member, and the upstream passage member are separate bodies from one another, and
- a material of the first downstream passage member and a material of the second downstream passage member both have a higher rigidity than a material of the upstream passage member.
Dependencies are inferred from the claim text.