JP2016147511A - Intercooler hose fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intercooler hose fitting structure that can lower vibration input from a joint point of an intercooler hose to reduce a component of solid propagation sound due to the vibration input, thereby improving cabin sound.SOLUTION: In the intercooler hose fitting structure, a radiator 5 is fixed to a vehicle body 2, intercooler hoses 3a, 3b, 4a, 4b connect an intercooler 11 provided forward of the radiator 5 to an engine 10, a bracket 6 is made of a resin and fixes the intercooler hoses 3a, 3b, 4a, 4b to the radiator 5, a first bushing 8 is made of rubber and interposed between the bracket 6 and the radiator 5, and a second bushing 9 is made of rubber and interposed between the radiator 5 and the vehicle body 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an intercooler hose mounting structure in an engine room.

  A vehicle in which an intercooler is installed in front of a radiator is known (for example, see Patent Document 1). The intercooler and the engine are connected by an intercooler hose.

JP 2013-256168 A

  The main purpose of maintaining the posture of the intercooler hose is to provide a coupling point (fixed point) in the middle of the intercooler hose, and at this coupling point, the intercooler hose may be supported on the vehicle body (cabin) side via a metal bracket. is there. Further, in order to reduce vibration transmission from the intercooler hose to the cabin side, a rubber bush may be interposed between the metal bracket and the vehicle body side to support the intercooler hose with vibration isolation.

  However, the metal bracket has a small vibration damping effect, and a single rubber bush has a limited vibration damping effect. This may not be possible and may cause a vehicle interior noise.

  Then, an object of this invention is to provide the attachment structure of the intercooler hose which can suppress generation | occurrence | production of the vehicle interior sound resulting from the vibration input from the connection point of an intercooler hose.

  In order to achieve the above object, an intercooler hose mounting structure according to the present invention includes a radiator, an intercooler, an intercooler hose, a bracket, a first bush, and a second bush.

  The radiator and the intercooler are each fixed to the vehicle body, and the intercooler is disposed in front of the radiator. The intercooler hose connects the intercooler and the engine. The bracket is made of resin and fixes the intercooler hose to the radiator. The first bush is made of rubber, and is interposed between the bracket and the radiator, and elastically supports the bracket with respect to the radiator. The second bush is made of rubber, and is interposed between the radiator and the vehicle body, and elastically supports the radiator with respect to the vehicle body.

  In the above configuration, a resin bracket having a greater vibration damping effect than the metal bracket is used, and the intercooler hose is supported by the radiator by means of the first bushing made of rubber. Since the second bushing made of rubber is interposed between the two to prevent vibration, double vibration isolation is achieved and a greater vibration isolation effect is obtained.

  According to the mounting structure of the intercooler hose of the present invention, the cabin noise can be improved by reducing the vibration input from the connection point of the intercooler hose and reducing the component of the solid propagation sound resulting therefrom.

It is an external appearance perspective view of the attachment structure of the intercooler hose which concerns on embodiment of this invention. It is a principal part perspective view of the attachment structure of the intercooler hose shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the direction of arrow R is the right direction, and the direction of arrow L is the left direction.

  As shown in FIGS. 1 and 2, a vehicle 1 to which the present embodiment is applied is an LCV vehicle (light commercial vehicle) in which an engine room 2a is provided in front of a cabin (chamber) (not shown), and the engine room 2a. Intercooler hoses 3a, 3b, 4a, 4b are attached inside. The engine 10 is disposed in the engine room 2 a and is fixed to the vehicle body 2.

  A radiator 5 that cools the high-temperature coolant that has cooled the engine 10 is disposed in front of the engine 10. The radiator 5 is fixed to the vehicle body 2 via a second rubber bush 9 at two locations on both sides of the lower end and at two locations spaced from each other at the upper end. An intercooler 11 is disposed in front of the radiator 5. The intercooler 11 is fixed to at least one of the vehicle body 2 and the radiator 5.

  The intercooler hoses 3a and 3b connect between a turbo turbine (not shown) in the engine 10 and an intercooler 11 installed in front of the radiator 5, and send air heated by the turbo turbine to the intercooler 11. The intermediate part of the intercooler hoses 3a and 3b is fixed to the upper left end of the radiator 5 by a resin bracket 6.

  The intercooler hoses 4 a and 4 b connect between the intake manifold (not shown) in the engine 10 from the intercooler 11 and send air cooled by the intercooler 11 to the engine 10. An intermediate portion of the intercooler hoses 4 a and 4 b is fixed to the upper right end of the radiator 5 by a resin bracket 7.

  The bracket 6 is made of a resin in which a pipe 6a that connects the intercooler hoses 3a and 3b and a hose mount 6b that fixes the intercooler hoses 3a and 3b to the upper left side of the radiator 5 are integrally formed.

  The bracket 7 is made of a resin in which a tube 7 a that connects the intercooler hoses 4 a and 4 b and a hose mount 7 b that fixes the intercooler hoses 4 a and 4 b to the upper right side of the radiator 5 are integrally formed.

  The first bush 8 is made of rubber interposed between the brackets 6 and 7 and the radiator 5, and elastically supports the brackets 6 and 7 with respect to the radiator 5. One first bush 8 is interposed between the hose mount 6b and the upper left portion of the radiator 5, and the other first bush 8 is interposed between the hose mount 7b and the upper right portion of the radiator 5. To do.

  The second bush 9 is made of rubber interposed between the radiator 5 and the vehicle body 2, and elastically supports the radiator 5 with respect to the vehicle body 2. The second bush 9 is interposed between the radiator 5 and the vehicle body 2 at two locations on both sides of the lower end of the radiator 5 and at two locations spaced from each other at the upper end of the radiator 5.

  Next, the vibration transmission path from the intercooler hoses 3a, 3b, 4a, 4b to the cabin will be described with reference to FIG.

  The vibration of the intercooler hoses 3a, 3b, 4a, and 4b is caused to the radiator 5 supported by the first bush 8 through the first bush 8 through the resin brackets 6 and 7, which have a greater vibration damping effect than the metal bracket. Communicated. The vibration transmitted to the radiator 5 is transmitted to the cabin on the vehicle body 1 side in a state where the vibration is supported by the second bush 9.

  According to the present embodiment, the resin cooler brackets 6 and 7 having a greater vibration damping effect than the metal bracket are used, and the intercooler hoses 3a, 3b, 4a, and 4b are disposed with the rubber first bushing 8 interposed therebetween. Anti-vibration support and the anti-vibration support with the rubber second bush 9 intervening between the radiator 5 and the vehicle body 2 provide double anti-vibration (two-stage anti-vibration) Anti-vibration effect is obtained. As described above, the vehicle interior sound can be improved by reducing the vibration input from the coupling point of the intercooler hoses 3a, 3b, 4a, and 4b and reducing the component of the solid propagation sound resulting therefrom.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  The intercooler hose mounting structure according to the present invention can be used for LCV vehicles and other vehicles.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 2a Engine room 3a, 3b, 4a, 4b Intercooler hose 5 Radiator 6,7 Bracket 8 1st bush 9 2nd bush 10 Engine 11 Intercooler

Claims (1)

A radiator fixed to the vehicle body,
An intercooler installed in front of the radiator and fixed to the vehicle body;
An intercooler hose connecting the intercooler and the engine;
A resin bracket for fixing the intercooler hose to the radiator;
A rubber first bushing interposed between the bracket and the radiator and elastically supporting the bracket with respect to the radiator;
An intercooler hose mounting structure comprising: a second bushing made of rubber that is interposed between the radiator and the vehicle body and elastically supports the radiator with respect to the vehicle body.

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