Intake manifold support structure of engine

Abstract

The utility model provides an intake manifold support structure of an engine. The intake manifold support structure can meet the requirement for light weight and has a good collision protection function. The engine includes: an engine body; an intake manifold; a throttle body; the intake manifold support structure is located between the engine body and the intake manifold, and the engine body and the intake manifold are fixed to the intake manifold support structure through bolts on the edge of the intake manifold support structure; the edge of the intake manifold support structure is integrally formed along the fuel pipe, the throttle body and the fuel pipe are oppositely arranged in the mode that the edge of the intake manifold support structure is clamped, and the throttle body is arranged on the side, close to the intake manifold, of the intake manifold support structure. The fuel pipe is arranged on the side, close to the engine body, of the intake manifold support structure, a plurality of longitudinal reinforcing ribs are formed in the length direction of the edge of the intake manifold support structure, and the fuel pipe is arranged on the longitudinal reinforcing ribs.

Description

Technical Field

[0001] The utility model relates to an intake manifold bracket structure of an engine. Background Art

[0002] In recent years, in order to ensure access to affordable, reliable, sustainable and advanced energy for more people, research and development related to lightweighting that contributes to energy efficiency has been carried out.

[0003] In a vehicle equipped with an internal combustion engine, it is necessary to prevent fuel from leaking from fuel system components such as fuel pipes and fuel tanks even if the vehicle is damaged due to a collision, etc. Therefore, the prior art reduces damage to fuel system components by concentrating the damaged portions caused by the impact load during a collision on specific vehicle components and allowing the damaged portions of these vehicle components to absorb the energy.

[0004] For example, in an internal combustion engine equipped with an exhaust gas recirculation (EGR) device for returning a part of the exhaust gas to the combustion chamber in the prior art, there is a method in which the exhaust gas recirculation device is used as a shock absorbing member for absorbing the impact energy caused by the impact load. However, the reason why the above-mentioned exhaust gas recirculation device can be used as a shock absorbing member for absorbing the impact load is that the high rigidity requirement of the surrounding parts of the components constituting the exhaust gas recirculation passage is guaranteed, and since some internal combustion engine models do not need to be equipped with the exhaust gas recirculation device and its exhaust gas recirculation passage, it is necessary to consider a method other than the rigidity of the surrounding parts of the components constituting the exhaust gas recirculation passage to ensure the load capacity of the shock absorbing member.

[0005] This proposal aims to achieve weight reduction in order to solve the above-mentioned problems. Furthermore, it contributes to energy efficiency.

[0006] [Prior art literature]

[0007] [Patent Document]

[0008] [Patent Document 1] Japanese Patent Publication No. 2012-87735

[0009] [Patent Document 2] Japanese Patent Publication No. H08-127254

[0010] [Patent Document 3] Japanese Patent Publication No. 2004-316583 Utility Model Content

[0011] The utility model provides an intake manifold bracket structure of an engine, which can meet the demand for lightweight and has good collision protection function.

[0012] The utility model provides an intake manifold support structure of an engine, the engine comprising: an engine body; an intake manifold, one end of the intake manifold is connected to the engine body; a throttle body, a throttle is arranged inside the throttle body and is connected to the other end of the intake manifold; the intake manifold support structure is located between the engine body and the intake manifold, and the engine body and the intake manifold are respectively fixed to the intake manifold support structure on the edge of the intake manifold support structure by bolts; and a fuel pipe as a fuel system component is arranged along the length direction of the intake manifold support structure, the edge of the intake manifold support structure is integrally formed along the fuel pipe, the throttle body and the fuel pipe are arranged oppositely in a manner of sandwiching the edge of the intake manifold support structure, the throttle body is arranged on a side of the intake manifold support structure close to the intake manifold, the fuel pipe is arranged on a side of the intake manifold support structure close to the engine body, and a plurality of longitudinal reinforcing ribs are formed in the length direction of the edge of the intake manifold support structure, and the fuel pipe is arranged on the longitudinal reinforcing ribs.

[0013] In an embodiment of the present invention, the intake manifold support structure is adjacent to the throttle body, and the shortest distance of the gap between the intake manifold support structure and the throttle body is smaller than the shortest distance of the gap between the intake manifold support structure and the fuel pipe.

[0014] In one embodiment of the present invention, the intake manifold support structure comprises a bolt boss portion and a weakened portion, wherein the bolt boss portion is located at an end portion of the edge portion on the intake manifold side, and the weakened portion is adjacent to the bolt boss portion.

[0015] In an embodiment of the present invention, the weakened portion is a thin-walled portion.

[0016] In an embodiment of the present invention, the weakened portion is a groove portion.

[0017] In one embodiment of the utility model, a transverse reinforcing rib is formed on the intake manifold bracket structure, and the transverse reinforcing rib and the bolt boss portion are arranged opposite to each other on both sides of the weakened portion. The transverse reinforcing rib is connected to multiple longitudinal reinforcing ribs on the side close to the weakened portion to form an integrated reinforcing rib structure.

[0018] Based on the above, in the intake manifold support structure of the engine of the utility model, the configuration of the integrally formed edge and the reinforcing rib structure on the intake manifold support structure can make the intake manifold support structure have high rigidity and ensure the load capacity of the intake manifold support structure, thereby ensuring the integrity of the intake manifold support structure and its collision protection function as an impact absorbing member for absorbing impact load during a collision, thereby ensuring the protection of the fuel pipe, and making the intake manifold support structure in the engine as a fuel system component protection structure, thereby reducing the number of required parts. In addition, by making one end of the intake manifold support structure close to the throttle body approach and abut against the throttle body first, the other end of the intake manifold support structure provided with bolts can be prevented from being abutted. In the case of no rotational displacement (generating torque), the intake manifold support structure can absorb the impact load during a vehicle collision, and at the same time, the rotational displacement can be suppressed to suppress the interference with the fuel pipe, thereby ensuring the protection of the fuel pipe. In addition, by reducing the rigidity of the portion near the other end of the intake manifold support structure and causing it to break first, the effect of reducing rotational displacement and torque can be achieved, thereby reducing the possibility of bolt damage. In addition, the fuel pipe is not arranged behind the weakened portion with low rigidity, thereby avoiding the possibility of damaging the fuel pipe.

[0019] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an intake manifold support structure of an engine according to an embodiment of the utility model;

[0021] Figure 2 It is a side view schematic diagram of an intake manifold support structure of an engine according to an embodiment of the utility model;

[0022] Figure 3A yes Figure 1 A front view schematic diagram of the intake manifold support structure shown;

[0023] Figure 3B and Figure 3C They are Figure 3A The intake manifold support structure shown is a schematic side view of the intake manifold support structure viewed from both sides.

[0024] Description of reference numerals:

[0025] 100: Intake manifold bracket structure

[0026] 110: Longitudinal reinforcement ribs

[0027] 120: Transverse reinforcement rib

[0028] 130: Bolt boss

[0029] 140: Weakened

[0030] 200: Engine

[0031] 210: Engine body

[0032] 220: Intake manifold

[0033] 230: Throttle body

[0034] 240: Fuel pipe

[0035] A, B: distance

[0036] BT1, BT2: Bolts

[0037] FX1, FX2: Location. DETAILED DESCRIPTION

[0038] Figure 1 It is a three-dimensional schematic diagram of an intake manifold support structure of an engine according to an embodiment of the utility model; Figure 2 It is a side view schematic diagram of an intake manifold support structure of an engine according to an embodiment of the utility model; Figure 3A yes Figure 1 A front view schematic diagram of the intake manifold support structure shown; Figure 3B and Figure 3C They are Figure 3A The intake manifold support structure of the plate member of the fuel system component protection structure shown in the figure is a side view schematic diagram of the intake manifold support structure viewed from both sides. In this embodiment, the intake manifold support structure 100 of the engine 200 refers to the part of the vehicle located near the fuel system component. Figures 1 to 3C The specific structure of the intake manifold support structure 100 of the engine 200 will be described.

[0039] Please refer to Figure 1 and Figure 2 In this embodiment, the engine 200 includes an engine body 210, an intake manifold 220, a throttle body 230, an intake manifold support structure 100, and a fuel pipe 240 as a fuel system component. Specifically, Figure 1 and Figure 2 As shown, in this embodiment, one end of the intake manifold 220 is connected to the engine body 210. A throttle valve is provided inside the throttle body 230, and is connected to the other end of the intake manifold 220. The intake manifold support structure 100 is located between the engine body 210 and the intake manifold 220. The engine body 210 and the intake manifold 220 are fixed to the intake manifold support structure 100 at the edge of the intake manifold support structure 100 by bolts BT1 and BT2, respectively. Figure 1 and Figure 2 As shown, in this embodiment, the bolt BT1 for fixing the intake manifold support structure 100 and the engine body 210 is located at a position FX1 of the intake manifold support structure 100 near the fuel pipe 240, and the bolt BT2 for fixing the intake manifold support structure 100 and the intake manifold 220 is located at a position FX2 at the end of the intake manifold support structure 100 near the intake manifold 220.

[0040] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the fuel pipe 240 is arranged along the length direction of the intake manifold support structure 100. The edge of the intake manifold support structure 100 is integrally formed along the fuel pipe 240 and has high rigidity. The throttle body 230 and the fuel pipe 240 are arranged opposite to each other in a manner of sandwiching the edge of the intake manifold support structure 100. The throttle body 230 is arranged on a side of the intake manifold support structure 100 close to the intake manifold 220, and the fuel pipe 240 is arranged on a side of the intake manifold support structure 100 close to the engine body 210.

[0041] And, if Figure 2 and Figure 3A As shown, in this embodiment, the intake manifold support structure 100 has a transverse reinforcement rib 120 and a plurality of longitudinal reinforcement ribs 110. The plurality of longitudinal reinforcement ribs 110 are formed along the length direction of the edge of the intake manifold support structure 100, and the fuel pipe 240 is arranged on the longitudinal reinforcement rib 110. The transverse reinforcement rib 120 connects the plurality of longitudinal reinforcement ribs 110 to form an integrated reinforcement rib structure.

[0042] In this way, the intake manifold support structure 100 can have high rigidity through the configuration of the integrally formed edge and the reinforcing rib structure, thereby ensuring the integrity of the intake manifold support structure 100 and its collision protection function as an impact absorbing member for absorbing impact loads during a collision. In addition, by providing the fuel pipe 240 on the longitudinal reinforcing rib 110, the longitudinal reinforcing rib 110 can protect the fuel pipe 240, so that the intake manifold support structure 100 in the engine 200 can be used as a fuel system component protection structure, thereby reducing the number of required parts. In addition, as Figure 1 As shown, in this embodiment, the intake manifold support structure 100 is adjacent to the throttle body 230, and the shortest distance between the intake manifold support structure 100 and the throttle body 230 is smaller than the shortest distance between the intake manifold support structure 100 and the fuel pipe 240. Figure 1As shown, in this embodiment, the shortest distance A of the gap between the intake manifold support structure 100 and the throttle body 230 is also smaller than the shortest distance B in the vehicle height direction between the throttle body 230 and the bolt BT2 that fixes the intake manifold support structure 100 and the intake manifold 220. In this way, when a collision occurs, the end of the intake manifold support structure 100 close to the throttle body 230 is first close to and abuts against the throttle body 230, which can prevent the other end of the intake manifold support structure 100 where the bolt BT2 is provided near the intake manifold 220 from being abutted. In the case of no rotational displacement (generating torque), the intake manifold support structure 100 can absorb the impact load when the vehicle collides, and at the same time, it can suppress the rotational displacement and suppress the interference with the fuel pipe 240, thereby ensuring the protection of the fuel pipe 240.

[0043] On the other hand, FIG. 3A to FIG. 3C As shown, in this embodiment, the intake manifold support structure 100 has a high-rigidity bolt boss portion 130 and a low-rigidity weakened portion 140, the bolt boss portion 130 is located at the end portion FX2 of the edge of the intake manifold support structure 100 on the intake manifold 220 side, and the weakened portion 140 is adjacent to the bolt boss portion 130. In addition, the transverse reinforcement rib 120 and the bolt boss portion are arranged opposite to each other on both sides of the weakened portion, and the transverse reinforcement rib 120 is connected to a plurality of longitudinal reinforcement ribs 110 on the side close to the weakened portion to form an integrated reinforcement rib structure.

[0044] In this way, since the integrated reinforcing rib structure and the bolt boss portion 130 located around the weakened portion 140 both have high rigidity, the weakened portion 140 can be provided to reduce the rigidity of the vicinity of the portion FX2 of the end of the intake manifold support structure 100 near the intake manifold 220 and ensure that the weakened portion can be broken first, which can be used to absorb the impact load, can more reliably ensure the protection of the fuel pipe 240, and can make the bolt BT2 remain, and can also achieve the effect of reducing the rotation displacement and torque, thereby reducing the possibility of damage to the bolts BT1 and BT2. In addition, the fuel pipe 240 is not arranged behind the weakened portion 140 with low rigidity, so that the possibility of damage to the fuel pipe 240 can be avoided. For example, in this embodiment, the weakened portion 140 can be a thin-walled portion, but the utility model is not limited thereto. In another embodiment, the weakened portion 140 can be a groove portion. In this way, the structure of the weakened portion 140 is simple and can be easily formed, so that the intake manifold support structure 100 can be simply formed into a component of an integrally formed plate. After the actual vehicle collision test, the bolts BT1 and BT2 connecting the intake manifold support structure 100 and the engine body 210 can be prevented from breaking due to the torque, and the fuel pipe 240 can be protected without damaging the portion FX1 of the intake manifold support structure 100 corresponding to the fuel pipe 240. In addition, when confirming the load capacity of the intake manifold support structure 100 in a single collision test, the other end of the intake manifold support structure 100 with low rigidity is first broken near the intake manifold 220, so that the effect of reducing the rotation torque can be achieved, and thus the bolt BT1 connecting the intake manifold support structure 100 and the engine body 210 can be further prevented from breaking. In addition, since the intake manifold support structure 100 located at the rear of the throttle body 230 has high rigidity, the impact load that can cause the intake manifold support structure 100 at the rear of the throttle body 230 to break is much larger than the input impact load during a collision, thereby ensuring the integrity of the intake manifold support structure 100 and its collision protection function as an impact absorbing component that absorbs impact loads during a collision, thereby ensuring the protection of the fuel pipe 240.

[0045] Furthermore, since the engine 200 does not use the surrounding parts of the components constituting the exhaust gas recirculation passage, but uses the configuration of the integrally formed edge and reinforcing rib structure of the intake manifold support structure 100 to ensure the load capacity of the intake manifold support structure 100. Specifically, in this embodiment, the transverse reinforcing rib 120 connects multiple longitudinal reinforcing ribs 110 to form an integrated reinforcing rib structure, which can compensate for the lack of rigidity on the general support structure. In addition, the reinforcing rib structure of the intake manifold support structure 100 can adjust the thickness by casting and form a ladder-shaped hollow shape. In this way, since the rib structure can be formed to remove unnecessary parts, high rigidity can be maintained without increasing too much weight and losing strength. In addition, the root side of the reinforcing rib structure of the intake manifold support structure 100 is connected to the edge, which can also ensure rigidity, and the structure in which the transverse reinforcing rib 120 is connected to multiple longitudinal reinforcing ribs 110 can compensate for each other's rigidity, and can ensure the load capacity of the intake manifold support structure 100. In addition, since the engine 200 can eliminate the configuration of the exhaust gas recirculation passage, it is not necessary to cut it with a die, and the processing cost can be reduced.

[0046] In summary, in the intake manifold support structure of the engine of the utility model, the configuration of the integrally formed edge and the reinforcing rib structure on the intake manifold support structure can make the intake manifold support structure have high rigidity and ensure the load capacity of the intake manifold support structure, thereby ensuring the integrity of the intake manifold support structure and its collision protection function as an impact absorbing member for absorbing impact load during a collision, thereby ensuring the protection of the fuel pipe, and making the intake manifold support structure in the engine as a fuel system component protection structure, thereby reducing the number of required parts. In addition, by making one end of the intake manifold support structure close to the throttle body approach and abut against the throttle body first, the other end of the intake manifold support structure with bolts arranged near the intake manifold can be prevented from being abutted. In the case of no rotational displacement (generating torque), the intake manifold support structure can absorb the impact load during a vehicle collision, and at the same time, can suppress the rotational displacement and suppress the interference with the fuel pipe, thereby ensuring the protection of the fuel pipe. In addition, by reducing the rigidity of the portion near the other end of the intake manifold support structure near the intake manifold and causing it to break first, the effect of reducing rotational displacement and torque can be achieved, thereby reducing the possibility of bolt damage. In addition, no fuel pipe is arranged behind the weakened portion with low rigidity, thereby avoiding the possibility of damaging the fuel pipe. In addition, since the engine can eliminate the configuration of the exhaust gas recirculation channel, it is not necessary to cut it with a mold, thereby reducing the processing cost.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An intake manifold support structure of an engine, characterized in that: The engine comprises: Engine body; An intake manifold, one end of which is connected to the engine body; A throttle body, wherein a throttle valve is disposed inside the throttle body and is connected to the other end of the intake manifold; The intake manifold support structure is located between the engine body and the intake manifold, and the engine body and the intake manifold are respectively fixed to the intake manifold support structure on the edge of the intake manifold support structure by bolts; and The fuel pipe as a fuel system component is arranged along the length direction of the intake manifold support structure. The edge of the intake manifold support structure is integrally formed along the fuel pipe, The throttle body and the fuel pipe are arranged opposite to each other in a manner of sandwiching the edge of the intake manifold support structure. The throttle body is arranged on a side of the intake manifold support structure close to the intake manifold, and the fuel pipe is arranged on a side of the intake manifold support structure close to the engine body, and a plurality of longitudinal reinforcing ribs are formed in the length direction of the edge of the intake manifold support structure, and the fuel pipe is arranged on the longitudinal reinforcing ribs.

2. The engine intake manifold support structure according to claim 1, characterized in that: The intake manifold support structure is adjacent to the throttle body, and the shortest distance of a gap between the intake manifold support structure and the throttle body is smaller than the shortest distance of a gap between the intake manifold support structure and the fuel pipe.

3. The engine intake manifold support structure according to claim 1 or 2, characterized in that: The intake manifold support structure includes a bolt boss portion and a weakened portion. The bolt boss portion is located at an end portion of the edge portion on the intake manifold side, and the weakened portion is adjacent to the bolt boss portion.

4. The engine intake manifold support structure according to claim 3, characterized in that: The weakened portion is a thin-walled portion.

5. The engine intake manifold support structure according to claim 3, characterized in that: The weakened portion is a groove portion.

6. The engine intake manifold support structure according to claim 3, characterized in that: The intake manifold support structure is formed with transverse reinforcing ribs, the transverse reinforcing ribs and the bolt boss portion are arranged opposite to each other on both sides of the weakened portion, and the transverse reinforcing ribs are connected to the multiple longitudinal reinforcing ribs on a side close to the weakened portion to form an integrated reinforcing rib structure.

Images