JP2018189067A - Intake manifold device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the rigidity of an intake manifold with a simple structure in an intake manifold device. An intake manifold (12) in which an intercooler (14) is housed is made of a resin material, and a heat exchange section (46) of the intercooler (14) is inserted into a collector section (18) having an approximately rectangular cross section and a plurality of fastenings are performed. The bolt 28 fixes the plate member 48 of the intercooler 14 on the front side in the depth direction of the intake manifold 12, and also penetrates the inside to the rear side in the depth direction and is inserted and fixed to the walls 32 and 42. Accordingly, the rigidity of the intake manifold 12 is increased by utilizing the plurality of fastening bolts 28, so that the pressure resistance can be improved. [Selection diagram] Figure 2

Description

  The present invention relates to an intake manifold device incorporating an intercooler for cooling air.

  The present applicant has proposed an intake manifold device in which an intercooler for cooling the air passing through the inside of the intake manifold is housed (see Patent Document 1).

  Such an intake manifold device has a manifold having an intake inlet and a plurality of branch passages, and the manifold is made of a resin material and has a predetermined volume between the intake inlet and the plurality of branch passages. The heat exchange part of the intercooler is housed and fixed in the collector part. This collector part is formed to open in a rectangular cross section corresponding to the heat exchange part of the intercooler.

Japanese Patent Laid-Open No. 2006-169618

  The present invention has been made in connection with the above proposal, and an object thereof is to provide an intake manifold device capable of improving the rigidity of the intake manifold with a simple configuration.

In order to achieve the above object, the present invention provides an intake manifold having an intake manifold that is formed of a resin material and guides air to a plurality of cylinder chambers of an internal combustion engine, and an intercooler that is built in the intake manifold and cools the air. In the manifold device,
An intercooler is inserted into the intake manifold so as to be substantially orthogonal to the flow direction of the air flowing therethrough, and extends along the insertion direction of the intercooler to the side of the intercooler and is fixed to the intake manifold. A reinforcing member is provided.

  According to the present invention, in the intake manifold apparatus having the intake manifold in which the intercooler is built, the intercooler is inserted into the intake manifold so as to be substantially orthogonal to the flow direction of the air flowing therethrough. On the other hand, a reinforcing member is provided that extends along the insertion direction of the intercooler and is fixed to the intake manifold.

  Therefore, the rigidity of the intake manifold made of a resin material can be increased with a simple configuration in which the reinforcing member is extended and fixed to the intake manifold in the insertion direction of the intercooler. It is possible to improve the pressure resistance against the air flowing through.

  In addition, the reinforcing member penetrates from the one end side to the other end side along the insertion direction of the intercooler in the intake manifold, and is fastened to fix the intercooler fastened to at least one of the one end side and the other end side. It may be a member.

  Furthermore, the reinforcing member is formed on the other end side of the intake manifold along the insertion direction of the intercooler and the fastening member inserted into the one end side of the intake manifold along the insertion direction of the intercooler, toward the one end side It is good to comprise from the boss | hub part which extends and the fastening member is fastened.

  According to the present invention, the following effects can be obtained.

  That is, an intercooler is inserted into the intake manifold constituting the intake manifold device so as to be substantially orthogonal to the flow direction of the air flowing therethrough, and extends along the insertion direction to the side of the intercooler. By providing the fixed reinforcing member, the rigidity of the intake manifold made of a resin material can be increased, and the pressure resistance against the air flowing through the intake manifold can be improved.

1 is an overall front view of an intake manifold device according to an embodiment of the present invention. It is sectional drawing along the II-II line of FIG. It is an expanded sectional view of the intake manifold device concerning a modification.

  A preferred embodiment of an intake manifold device according to the present invention will be described below and described in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates an intake manifold apparatus according to an embodiment of the present invention.

  This intake manifold device 10 is applied to a multi-cylinder (for example, three-cylinder) internal combustion engine mounted on a vehicle or the like, and cools air compressed by a supercharger (not shown) to form a plurality of cylinders. Lead to the room.

  As shown in FIG. 1, the intake manifold device 10 includes, for example, an intake manifold 12 that is injection-molded from a resin material, and an intercooler 14 that is built in the intake manifold 12.

  As shown in FIGS. 1 and 2, the intake manifold 12 accommodates a tubular introduction portion 16 connected to an intake passage (not shown) and an intercooler 14 that cools air guided from the introduction portion 16. It has the collector part 18 and the derivation | leading-out part 20 which guides the air cooled in the downstream of the said collector part 18 to a some cylinder chamber (not shown).

  One end portion of the introduction portion 16 along the width direction (the direction of arrow A in FIG. 1) opens, and extends from the one end portion toward the other end portion along the width direction while being curved. The first passage portion 22 is provided. As shown in FIG. 2, the first passage portion 22 is upward from the front in the depth direction (arrow B direction) on the side of the opening 36 of the collector portion 18 to the rear side (arrow C direction) when viewed from the width direction. And bend to form.

  Further, as shown in FIG. 2, the introduction portion 16 is formed with an attachment portion 24 to which the intercooler 14 is attached on the wall portion on the front side in the depth direction (arrow B direction). A plurality of first bolt holes 26 penetrating toward the rear in the depth direction (arrow C direction) are formed along the direction. The first bolt hole 26 is formed with a quantity corresponding to the quantity of the fastening bolts 28 because a fastening bolt (reinforcing member, fastening member) 28 for fixing the intercooler 14 is inserted therethrough. A nut member 30 to which the fastening bolt 28 is screwed is provided.

  Furthermore, a second bolt hole 34 through which the fastening bolt 28 is inserted is formed in the wall portion 32 on the rear side in the depth direction (arrow C direction), which is the opposite side to the attachment portion 24, in the introduction portion 16. The second bolt hole 34 extends along the depth direction (arrow B, C direction) of the intake manifold 12 and is formed in a straight line with the first bolt hole 26 provided below the opening 36. The

  As shown in FIGS. 1 and 2, the collector portion 18 is formed in a substantially rectangular shape having a long cross section along the width direction (arrow A direction), and is provided between the introduction portion 16 and the lead-out portion 20. ing. And the collector part 18 has the opening part 36 opened to the depth direction front side (arrow B direction), and the heat exchange part 46 of the intercooler 14 mentioned later is accommodated in the inside through the said opening part 36. FIG.

  The lead-out portion 20 has a plurality of branch pipes 38 that are equally spaced from each other along the width direction of the intake manifold 12 (the direction of arrow A in FIG. 1). The second passage portion 40 is formed in the interior thereof, extending toward the rear side in the direction (arrow C direction). One end of the lead-out portion 20 communicates with the collector portion 18 via the second passage portion 40, and the other end is connected to a cylinder chamber of an internal combustion engine (not shown).

  Further, as shown in FIG. 2, a third bolt hole 44 through which the fastening bolt 28 is inserted is formed in the wall portion 42 connecting the plurality of branch pipes 38 and the collector portion 18. The third bolt hole 44 extends along the depth direction (arrow B, C direction) of the intake manifold 12 and is formed in a straight line with the first bolt hole 26 provided above the opening 36. The

  The intercooler 14 has, for example, a rectangular parallelepiped outer shape that is long in the width direction, and has a plurality of cooling water passages (not shown) through which cooling water flows, and the heat exchange unit 46. And a plate member 48 that covers an end on the front side in the depth direction (arrow B direction) orthogonal to the width direction of the portion 46.

  For example, the plate member 48 is formed in a plate shape from a metal material such as aluminum, and is fixed by welding or the like so as to cover the end of the heat exchanging portion 46 on the front side in the depth direction (arrow B direction). The plate member 48 is formed with a plurality of fastening portions 50 that protrude in the width direction (arrow A direction in FIG. 1) and the height direction with respect to the outer edge portion. The fastening portions 50 are formed, for example, so as to be spaced apart from each other at equal intervals, and the hole portions 52 (see FIG. 2) through which the fastening bolts 28 are inserted are formed.

  The number of the fastening portions 50 is formed to be equal to the number of the first bolt holes 26 in the intake manifold 12, and here, ten fastening portions 50 and the first bolt holes 26 are provided, A case will be described in which every five second and third bolt holes 34 and 44 are provided.

  The intercooler 14 has the heat exchanging portion 46 accommodated in the collector portion 18 of the intake manifold 12 and the plate member 48 mounted so as to cover the mounting portion 24. The first bolt holes 26 are arranged in a straight line.

  In addition, a pair of pipe connection members 54 a and 54 b for supplying and discharging cooling water to and from the heat exchanging portion 46 is provided at an end portion along the width direction (arrow A direction) of the plate member 48.

  The fastening bolt 28 has a head portion 56 formed in a hexagonal cross section and a long screw portion 58 extending from an end portion of the head portion 56. The fastening bolt 28 has a threaded portion 58 inserted into the hole 52 of the plate member 48, and is screwed into the nut member 30 in the first bolt hole 26 of the intake manifold 12. The end portions are inserted into the second and third bolt holes 34 and 44, respectively.

  At this time, the length of the fastening bolt 28 along the axial direction (directions of arrows B and C) is such that the head 56 is in contact with the end surface of the plate member 48 and the tip of the screw portion 58 is second and second. The length is set such that it can protrude through the bolt holes 34 and 44 to the outside of the walls 32 and 42 by a predetermined length (see FIG. 2).

  That is, the screw member 58 of the fastening bolt 28 is screwed into the nut member 30 of the first bolt hole 26, whereby the plate member 48 of the intercooler 14 is fixed to the attachment portion 24 of the intake manifold 12.

  Further, the fastening bolt 28 is fitted with a locking member 60 for restricting movement in the axial direction (arrow B, C direction) at the tip of the screw portion 58 protruding from the wall portions 32, 42 of the intake manifold 12. Is done. The locking member 60 may be, for example, a clip engaged with the screw portion 58 or a nut screwed into the screw portion 58, and is not particularly limited. When the locking member 60 is attached to the screw portion 58 outside the wall portions 32 and 42, the movement of the fastening bolt 28 including the screw portion 58 forward in the depth direction (arrow B direction) is restricted. .

  In addition, you may make it seal when the screw part 58 is inserted by providing a sealing member (not shown) in the 2nd and 3rd bolt holes 34 and 44. FIG.

  Thereby, the plurality of fastening bolts 28 penetrates along the depth direction (arrow B, C direction) of the intake manifold 12 and is substantially parallel to the heat exchange portion 46 of the intercooler 14 with respect to the intake manifold 12. In addition to being fixed, the plate member 48 of the intercooler 14 is fixed to the mounting portion 24.

  The intake manifold device 10 according to the embodiment of the present invention is basically configured as described above. Next, the operation and effects thereof will be described.

  Air is supplied to the introduction portion 16 of the intake manifold 12 constituting the intake manifold device 10 through an intake duct or a throttle body (not shown), and the air passes through the heat exchange portion 46 of the intercooler 14 from the first passage portion 22. Thus, heat exchange is performed with the cooling water circulating through the cooling water flow path (not shown). The cooled air is distributed to the plurality of branch pipes 38 in the outlet 20 and supplied to the cylinder chamber of the internal combustion engine (not shown) through the second passage 40.

  As described above, in the present embodiment, in the intake manifold device 10 in which the intercooler 14 is housed in the intake manifold 12, a plurality of fastening bolts 28 for fixing the intercooler 14 are provided to the intake manifold 12. Is inserted through from the front in the depth direction (arrow B direction) to the rear in the depth direction (arrow C direction), and the intercooler 14 is fixed in front of the depth direction, and the depth opposite to the fixing portion of the intercooler 14 is fixed. It is fixed on the rear side.

  Accordingly, it is possible to increase the rigidity by supporting the intake manifold 12 formed of a resin material and having the collector portion 18 having a substantially rectangular cross section in the depth direction front and rear by the plurality of fastening bolts 28, It is possible to improve the pressure resistance against the pressure of the air supplied to the collector unit 18.

  That is, the fastening bolt 28 functions as a reinforcing means for improving the rigidity of the intake manifold 12.

  In other words, even in the intake manifold 12 having the collector portion 18 having a substantially rectangular cross section for accommodating the intercooler 14, the pressure strength is improved by using the fastening bolts 28. It is possible to suppress deformation when the pressure of the pressurized air is applied to the collector portion 18, and further, even when the intercooler 14 is enlarged for the purpose of improving the cooling performance, the rigidity is improved. Deformation can be sufficiently suppressed.

  Further, by using a plurality of fastening bolts 28 to improve the rigidity, the ribs provided in the intake manifold 12 for the purpose of improving the strength can be made unnecessary, and accordingly, the ribs project outward. As a result, the outer shape of the intake manifold 12 is reduced, and the intake manifold device 10 can be downsized.

  Further, the intake manifold device 10 capable of suppressing the deformation of the intake manifold 12 is not limited to the configuration using the long fastening bolts 28 as described above. For example, the intake manifold device 80 shown in FIG. As described above, the screw portion 58 of the fastening bolt 86 may be fixed to the tip of the boss portion (reinforcing member) 84 provided on the wall portion 32 on the rear side in the depth direction (arrow C direction) in the intake manifold 82. .

  As shown in FIG. 3, the intake manifold device 80 is provided with a cylindrical boss portion 84 on the wall portion 32 on the rear side in the depth direction (arrow C direction) of the intake manifold 82. It is formed at a position that is in a straight line with the fastening portion 50 of the cooler 14 and the first bolt hole 26 of the intake manifold 82, and is formed in a straight line at a predetermined height toward the front side in the depth direction (arrow B direction) A nut member 30 is built in the end portion. The boss portion 84 is also provided on the wall portion 42 (not shown).

  Then, the fastening bolt 86 inserted through the fastening portion 50 of the intercooler 14 is inserted and screwed into the nut member 30 of the boss portion 84 through the first bolt hole 26, so that the plate member 48 of the intercooler 14 is engaged. The boss portion 84 and the fastening bolt 86 are fixed to the attachment portion 24 of the intake manifold 82.

  Thus, in the intake manifold device 80 described above, the boss portion 84 is provided on the intake manifold 82, so that the fastening bolts that are long in the axial direction do not penetrate to the wall portion 32 (42) on the rear side in the depth direction. It is possible to improve the rigidity of the intake manifold 82 and increase the pressure resistance. That is, the fastening bolt 86 and the boss portion 84 function as reinforcing means for improving the rigidity of the intake manifold 82.

  Thus, as long as the reinforcing means extending along the depth direction in the intake manifolds 12 and 82 is provided, the configuration is not particularly limited.

  In addition, the intake manifold device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10, 80 ... Intake manifold apparatus 12, 82 ... Intake manifold 14 ... Intercooler 16 ... Introducing part 18 ... Collector part 20 ... Deriving part 26 ... First bolt hole 28, 86 ... Fastening bolt 30 ... Nut member 34 ... Second bolt Hole 44 ... Third bolt hole 48 ... Plate member 52 ... Hole 58 ... Screw part 60 ... Locking member 84 ... Boss part

Claims (3)

In an intake manifold device having an intake manifold that is formed of a resin material and guides air to a plurality of cylinder chambers of an internal combustion engine, and an intercooler that is built in the intake manifold and cools the air,
The intercooler is inserted into the intake manifold so as to be substantially orthogonal to the flow direction of the air flowing through the intake manifold, and extends along the insertion direction of the intercooler to the side of the intercooler. An intake manifold device comprising a reinforcing member fixed to the manifold. The intake manifold device according to claim 1, wherein
The reinforcing member penetrates from one end side to the other end side along the insertion direction of the intercooler in the intake manifold, and fixes the intercooler fastened to at least one of the one end side and the other end side. An intake manifold device, wherein the intake manifold device is a fastening member. The intake manifold device according to claim 1, wherein
The reinforcing member is a fastening member inserted into one end side of the intake manifold along the insertion direction of the intercooler;
A boss part formed on the other end side of the intake manifold along the insertion direction of the intercooler, extending toward the one end side and fastened to the fastening member;
An intake manifold device characterized by comprising:

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