JPH04118818U - car fuel tank - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fuel tank for an automobile that allows a large amount of gasoline to flow into a sub-tank within the tank body and suppresses the noise of gasoline flowing within the tank body. [Configuration] A first separator 7 and a second separator 7 that guide gasoline 2 to the sub-tank 3 are installed before and after the sub-tank 3.
The curled portions 12, 12a formed at the upper ends of the separators 7, 7a make the gasoline 2 flow smoothly and suppress flow noise.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention consists of a tank body with a gasoline storage chamber partitioned inside, and an internal bottom of the body. A sub-tank fixed to the wall and a fue that pumps up the gasoline in the sub-tank. It has a pump and a conduit for sending the pumped gasoline to the engine. The present invention relates to fuel tanks for automobiles.

0002

[Conventional technology]

In the above type of fuel tank, there is a sub-tank inside the tank body. This feature allows the car to drive uphill when the amount of gasoline remaining in the tank is low. Even if the road slopes or you start suddenly, the gasoline accumulated in the sub tank will be drained. can be pumped up by a fuel pump and supplied to the engine. .

0003 However, in conventional fuel tanks, the gasoline inside the tank body is It was designed to allow gasoline to flow into the sub-tank by natural flow. Therefore, it is not possible to store a large amount of gasoline in the sub-tank, and the sub-tank is used to store gasoline. The above advantages could not be fully utilized.

0004 On the other hand, when the car is running, the gasoline inside the tank flows violently, causing gas to be generated. In order to suppress the noise of flowing gasoline, conventional fuel tanks are also A separator is installed inside the tank body to regulate the flow of gasoline. . However, depending on the conventional separator, the gas inside the tank body may leak when the car accelerates. The flow of phosphorus could not be regulated sufficiently, and the gasoline that moved violently fell into the tank body. The vehicle hits the front and rear walls of the vehicle strongly, producing the sound of gasoline flowing. There was fear.

[0005]

[Problem that the idea aims to solve] The purpose of this invention is to provide an automobile fuel tank that eliminates all of the above conventional drawbacks. It is to provide.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, this invention is intended to be applied to the fuel tank of the type described at the beginning. The sub-tank is placed approximately in the center of the tank body in the longitudinal direction of the vehicle. , first and second tanks are installed on the bottom wall of the tank body in front and behind the sub-tank. Separate the separators from their respective proximal ends. It protrudes diagonally upward toward the sub-tank located between these, and the upper end of each , directs the gasoline flowing along the top surface of the separator from the base end side to the sub tank. The gasoline flow hole and the gasoline that flows without passing through the flow hole are separated from the sub tank. The upper surface of each separator has a curled portion that guides the separator in the direction of Gasoline flowing on the upper surface of the separator from the base end side is guided to the gasoline flow hole. We propose a configuration with a protruding guide plate.

[0007]

【Example】

Embodiments of the present invention will be described below with reference to the drawings.

[0008] Figure 1 is a partially broken view of the fuel tank according to the present invention, with some elements omitted. FIG. 2 is a perspective view, and FIG. 2 is a vertical sectional view when the fuel tank is tilted.

[0009] The gasoline storage chamber divided inside the tank body 1 has an injection port (not shown). Gasoline 2 (Fig. 2) supplied from Link 3 is fixed. Subtank 3 shown here is a box-like body with an open top. Inside it is a fuel pump that pumps up the gasoline in sub tank 3. 4 (FIG. 2) is located. This pump 4 has a tube or hose. One end of a conduit 5 is connected, and the conduit 5 is screwed into the upper opening of the tank body 1 The gas that penetrates the attached cap 6 and is pumped up by the fuel pump 4 Phosphorus is delivered through conduit 5 to an engine, not shown. In cap 6 In addition to conduit 5, a gauge conduit and a breather pipe are also installed. The illustrations thereof are omitted.

0010 The tank body 1 described above is mounted on the body or chassis frame of an automobile. , the direction indicated by F in Fig. 1 is the front of the vehicle body, the direction indicated by R is the rear, and the direction indicated by U is The direction is upward.

[0011] Inside the tank body 1, the sub-tank 3 is provided as described above, and inside this The accumulated gasoline is pumped up by a fuel pump 4, and then pumped through a conduit 5. Since the gasoline is sent to the engine, the remaining amount of gasoline in the tank body 1 is low. If the car tilts on a slope or starts suddenly, the gasoline in the tank body 1 will be drained as shown in Figure 2. Even when the gas is biased toward the rear (or front) as shown in Phosphorus can be sent to the engine.

0012 However, in conventional fuel tanks, as explained earlier, the tank main The structure allows gasoline to flow into the sub-tank using only the natural flow of gasoline within the body. Because of this, it was not possible to store a large amount of gasoline in the sub tank.

[0013] In order to eliminate these drawbacks, the fuel tank shown in Figures 1 and 2 has the following features: It is configured as follows.

[0014] First, the above-mentioned sub-tank 3 is located approximately in the middle of the tank body 1 in the longitudinal direction of the vehicle body. Located in the center, the front of the sub-tank 3, that is, the side indicated by symbol F in FIG. The bottom wall of the tank body and the rear of the sub-tank 3, that is, indicated by the symbol R in Figure 1. On the bottom wall of the tank body on the side, there is a groove that suppresses the flow noise of the gasoline 2 in the tank body 1. The proximal ends 8, 8a of the first and second separators 7, 7a are fixed, respectively. child These separators 7, 7a are located between them from their respective proximal ends 8, 8a. It protrudes diagonally upward toward the sub-tank 3, and each upper end has the upper part of the sub-tank 3. Gasoline flow holes 9 and 9a facing the opening are formed, respectively.

[0015] When the car runs, the gasoline 2 in the tank body 1 flows violently. At this time, the gasoline 2 passes through the first and second separators 7, 7 provided in the tank body 1. The flow is regulated by a, and the noise of the flow is suppressed. This effect is similar to that of conventional It can also be obtained by using separators, but by using separators 7 and 7a shown in Figures 1 and 2. This also provides the following important effects:

[0016] In other words, as the tank body 1 moves back and forth, the gasoline inside it moves as shown in Figure 1. 2, from the proximal end portions 8, 8a of each separator 7, 7a. It flows along the upper surfaces of separators 7, 7a. And the gasoline that flowed like this The gasoline is passed through the gasoline flow holes 9, 9a formed at the upper end of each separator 7, 7a. is guided into the sub-tank 3 and housed within the tank 3.

[0017] The separator 7 is placed on the upper surface of each separator 7, 7a from the base end portion 8, 8a side. , 7a guides the gasoline flowing on the upper surface to each gasoline distribution hole 9, 9a. Each of the plates 10 and 10a is provided in a protruding manner. This allows a large amount of gasoline to be sub-tasked. can be effectively sent to link 3.

[0018] Further, in the illustrated embodiment, the gas can be removed by cutting and raising each separator 7, 7a. Phosphorus flow holes 9, 9a are formed, and each cut and raised piece 11, 11a is a sub-tank. 3, and these are the gas that guides gasoline to the sub tank 3. It functions as an id.

[0019] As mentioned above, each separator 7, 7a cooperates with the guide plate 10, 10a to Solin was forcibly guided into sub-tank 3, and a large amount of gasoline flowed into sub-tank 3. It serves the purpose of In other words, when the car is running, gasoline is constantly being supplied. It actively flows into the tank 3. Therefore, the gasoline in the tank body 1 A large amount of gasoline can be stored in sub tank 3 even when the remaining amount in the tank is low. This makes it possible to use gasoline more effectively and to extend the time when fuel runs out. Ma When a car starts or accelerates, it requires a large amount of gasoline; Sometimes the flow of gasoline is rapid, so the amount of gasoline flowing into subtank 3 This will ensure that the requirements for starting and accelerating can be met.

[0020] Also, gasoline constantly flows into the sub tank 3 due to the back and forth movement of the car. This makes it possible to make the size of sub-tank 3 smaller than before, resulting in lower costs. It is possible to reduce the

[0021] Further, at the upper end of each separator 7, 7a, there is a car curved in opposite directions. Ru portions 12, 12a are formed. The upper surface of each separator 7, 7a is 8, 8a side and flowed without flowing into the aforementioned gasoline distribution holes 9, 9a. The phosphorus is caused by the above-mentioned curl parts 12 and 12a as shown by the arrow Q in FIGS. 1 and 2. and is smoothly guided away from the sub-tank 3. That is, each separate Gasoline flowing to the top of tanks 7 and 7a does not just go straight, but at each curled part. 12, Flows smoothly while drawing an almost arc-shaped trajectory along the curvature of 12a . Therefore, the gasoline does not directly hit the wall of the tank body 1 strongly, Even when you suddenly start a car, the gasoline flows with a ``thud'' like in the past. It can prevent noise from occurring.

[0022]

[Effect of the idea]

As detailed above, according to the fuel tank according to the present invention, the fuel tank has more fuel than the conventional one. A large amount of gasoline can be sent to the sub tank, and the sound of gasoline flowing can be effectively suppressed. can be effectively suppressed.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a fuel tank according to the present invention, with a part of the tank body cut away and the fuel pump and the like omitted.

FIG. 2 is a longitudinal sectional view of the fuel tank when the tank body is tilted.

[Explanation of symbols]

1 Tank body 2 Gasoline 3 Sub tank 4 Fuel pump 5 Conduit 7 First separator 7a Second separator 8 Proximal end 8a Base end 9 Gasoline flow hole 9a Gasoline flow hole 10 Guide plate 10a Guide plate 12 Curl part 12a Curl part

Claims (1)

[Scope of utility model registration request] Claim 1: A tank body in which a gasoline storage chamber is divided, a sub-tank fixed to the internal bottom wall of the main body, a fuel pump for pumping up the gasoline in the sub-tank, and sending the pumped gasoline to an engine. and first and second separators that suppress the sound of gasoline flowing within the tank body, and the sub-tank is disposed approximately in the center of the tank body in the longitudinal direction of the vehicle body, and The base end portions of the first and second separators are respectively fixed to the rear tank body bottom wall portion, and the first and second separators extend from their respective base ends toward the sub-tank located between them. Protruding diagonally upward, each upper end has a gasoline flow hole that guides gasoline flowing along the top surface of the separator from the base end side to the sub-tank, and a gasoline flow hole that directs gasoline that flows without passing through the flow hole away from the sub-tank. A guide plate is provided on the upper surface of each separator to guide the gasoline flowing on the upper surface of the separator from the base end side to the gasoline flow hole. car fuel tank.