Suction unit of engine

Abstract

An intake manifold 5 provided with a surge tank 11 directing in a cylinder line direction in a transverse engine 10 is mounted on a rear part side of the vehicle for the engine 10. An intake communicating passage 16 communicated in a vehicle width direction by sectioning the inside is formed in the surge tank 11. One end side of the intake communicating passage 16 is connected with an input side of the air cleaner 4 and the other end side of the intake communicating passage 16 is connected with an intake take-in passage 3 extended from an intake port 2 in the front part of the vehicle. An output side of the air cleaner 4 is connected with the surge tank 11. The intake take-in passage 3 piped toward the air cleaner 4 can be piped without detouring a rear side of the intake manifold 5, only space of an existing engine room 1 is required and workability is excellent without increasing assembling man- hour.

Description

technical field [0001] The present invention relates to an engine air intake device for adapting an intake passage to an intake port, an air cleaner, and an intake manifold layout in a vehicle engine room. Background technique [0002] Conventionally, in the air intake device of an engine mounted on a vehicle, an air intake passage is provided in a fender or an engine room, and the air intake passage is connected to an air cleaner, and the air cleaner is connected to the engine through a throttle valve. Furthermore, in the engine, a plurality of branch pipes of the intake manifold are provided corresponding to the respective cylinders. [0003] Such as Figure 4 (a) shows a structure in which an engine (not shown) is mounted in the vehicle engine room 1 with the cylinder row direction directed to the vehicle width direction (transverse engine type), and extends from the intake port 2 at the front of the vehicle. The intake air passage 3 is connected to an air cleaner 4 at t...

AI Technical Summary

Problems solved by technology

That is, if Figure 4 As shown in (b), the positions of the air cleaner 4 and the intake manifold 5 are replaced, but this will lengthen the intake passage 3 from the intake port 2 due to detours, and the intake manifold 5 will be shortened. The branch pipe and the surge tank intersect with the position of the suction inlet passage 3 (not shown), which makes it difficult to carry out assembly work

And installation of bypass pipe 9 can cause difficult operation in addition

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