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Fuel supply system component protective construction

一种燃料供应系统、保护结构的技术，应用在装料系统、车辆部件、燃料喷射泵等方向，能够解决难保护滤油器、损坏滤油器等问题

Inactive Publication Date: 2008-10-01
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, depending on the size of the shock during the crash, sometimes the battery continues to move towards the oil filter even after the crash with the protector
In this case, it is difficult to protect the oil filter in a proper way as the protector pressing on the battery may damage the oil filter

Method used

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  • Fuel supply system component protective construction
  • Fuel supply system component protective construction
  • Fuel supply system component protective construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] figure 1 It is a block diagram showing a fuel supply system mounted on a vehicle. refer to figure 1 , this vehicle includes an in-cylinder direct injection engine 95 in which fuel that has been pressurized to a high pressure is directly injected into a fuel chamber of a cylinder. This fuel supply system includes a fuel tank 135, a high-pressure fuel pump 21, an accumulator pipe 142 (transfer pipe or common rail, etc.), an injector 143, and the like.

[0035] The high-pressure fuel pump 21 is connected to the fuel tank 135 and the accumulator pipe 142 through the low-pressure fuel passage 136 and the high-pressure fuel passage 141 , respectively. The pulsation damper 131 is disposed on the low-pressure fuel passage 136 to reduce fuel pulsation. A low-pressure fuel pump 134 , an oil filter 132 , and a pressure regulator 133 are disposed within the fuel tank 135 .

[0036] The high-pressure fuel pump 21 fulfills the role of pressurizing fuel to a high pressure and delive...

Embodiment approach 2

[0070] Figure 8 is a rear view showing the inside of a vehicle engine room to which a protection structure for fuel supply system components according to a second embodiment of the present invention is applied. and, Figure 9 yes Figure 8 Side view of the engine compartment in . Figure 8 is corresponding to the first embodiment Figure 4 view of the Figure 9 is corresponding to the first embodiment Figure 5 view. Comparing the protection structure of fuel supply system components according to this embodiment with the protection structure of fuel supply system components according to the first embodiment, they basically have the same configuration. Hereinafter, repeated explanations will not be given for repeated features of the configuration.

[0071] refer to Figure 8 and Figure 9 , the high-pressure fuel pump 21 further includes a covering member 26 fixed to the main body portion 22 . This covering member 26 closes the opening portion formed in the main body...

Embodiment approach 3

[0080] Figure 10 is a plan view showing the interior of a vehicle engine room to which a protection structure for fuel supply system components according to a third embodiment of the present invention is applied. Figure 10 is corresponding to the first embodiment image 3 view. Comparing the protection structure of fuel supply system components according to this embodiment with the protection structure of fuel supply system components according to the first embodiment, they basically have the same configuration. Hereinafter, repeated explanations will not be given for repeated features of the configuration.

[0081] refer to Figure 10 , in this embodiment, the pin member 81 replaces the image 3 A pin member 51 is provided between the protector 41 and the block 31 as a shock absorbing member. This pin member 81 is provided at a position spaced apart from both the protector 41 and the block 31 . The pin member 81 is supported between the protector 41 and the block 31 b...

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PUM

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Abstract

A fuel supply system component protective construction includes a high-pressure fuel pump (21), a protector (41), and a pin member (51). The high-pressure fuel pump (21) includes a block (31) and a union (23). The block (31) is endowed with a relatively high rigidity with respect to the union (23). The protector (41) confronts the union (23) and the block (31) at a certain distance. The pin member (51) is provided between the block (31) and the protector (41). When the high-pressure fuel pump (21) and the protector (41) shift in the direction to mutually approach one another, the pin member (51) contacts the block (31) before the protector (41) contacts the union (23), so that a resilient force operates upon the high-pressure fuel pump (21) and the protector (41).

Description

technical field [0001] The present invention relates to a protection structure for components of a fuel supply system, and more particularly, to a protection structure for fuel supply components housed in an engine compartment at the front of a vehicle. Background technique [0002] Regarding the protection structure of fuel supply system components, for example, Japanese Patent Application Publication No. JP-A-6-280710 (JP-A-6-280710) discloses an assembly structure of fuel system components that prevents them from being placed in the engine room. Fuel system components such as the oil filter in the vehicle were damaged during the collision. In this technique described in JP-A-6-280710, a certain gap is provided between the oil filter and the battery in the engine room. The oil filter is provided with a protector, and the protector is arranged around the oil filter. A wedge-shaped protrusion protruding toward the battery is formed on the protector. [0003] In the techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K28/00F02M37/22
CPCF04B53/16F02M59/102F02M59/44F02M59/48F02M63/0225F02M2200/185F04B53/00
Inventor 高畑克彦
Owner TOYOTA JIDOSHA KK
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