JP2002021649A - Evaporative emission system module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a module for constructing an evaporative emission needing no evaporative emission lines. SOLUTION: This evaporative emission system module 10 is composed of an attachment base 11 and various members fixed to this attachment base 11 such as a canister 12, a multifunctional valve 20 including a refueling valve 21 and a tank internal pressure control valve 22, a purge port 15, and an intake port. Since the evaporative emission system can be constructed just by attaching the attachment base 11 of the module 10 to an upper opening of a fuel tank 1, attachment work is comparatively simple. Since the canister 12 is built in the fuel tank 1, an interior of the canister 12 can be communicated with an interior of the fuel tank 1 by the tank internal pressure control valve 22 fixed to the attachment base 11 without providing an evaporative emission line as in conventional ones.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a module for constructing an evaporative system for preventing evaporative fuel evaporating from a fuel tank of an internal combustion engine from being released into the atmosphere.

[0002]

2. Description of the Related Art Conventionally, in an automobile using a highly volatile oil (for example, fuel such as gasoline) as fuel, evaporated fuel (also referred to as evaporative gas) volatilized in a fuel tank.
The vehicle is equipped with an evaporative system for treating the evaporated fuel in order to prevent the emission of methane into the atmosphere.

In such an evaporation system, as shown in FIG. 8, for example, when the tank internal pressure of the fuel tank 101 becomes higher than a predetermined pressure when the engine is stopped, the tank internal pressure control valve 1
02 is opened and the air containing the evaporated fuel volatilized in the fuel tank 101 passes through the evaporative line 103 and the canister 1
04, and the fuel vapor is adsorbed on the activated carbon C in the canister 104. On the other hand, when the engine is running, the intake pipe 1
Suction port 1 in the canister 104 due to the negative pressure of
06 through the purge line 107 together with the evaporated fuel desorbed from the activated carbon C through the purge valve 10
8 and is sent to the intake pipe 105. Note that a rollover valve 109 is provided on the fuel tank 101 side of the evaporation line 103 to prevent fuel from flowing out of the intake / exhaust port 106 via the canister 104 from the fuel tank 101 when the vehicle falls down.

[0004]

However, a rubber hose is usually used as the evaporation line 103 for communicating the fuel tank 101 with the canister 104, but there is a problem that the installation of piping and the like is complicated.

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a module for constructing an evaporative system that does not require an evaporative line.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to prevent evaporative fuel (also referred to as evaporative gas) evaporating from a fuel tank of an internal combustion engine from being released into the atmosphere. A module for constructing an evaporation system, comprising: a mounting base mounted to close an upper opening of the fuel tank; a canister fixed to the mounting base; and a canister built in the fuel tank; and a module fixed to the mounting base. When the internal pressure of the fuel tank becomes equal to or higher than a predetermined pressure, a tank internal pressure control valve that opens to send air containing fuel vapor from the fuel tank to the inside of the canister; A purge port for connecting the inside of the internal combustion engine to an intake pipe of the internal combustion engine; and a vapor port fixed to the mounting base and for removing evaporated fuel from the canister. Characterized by comprising an intake port for sucking outside air to be sent to the purge port.

In this evaporation system module, a canister, a tank internal pressure control valve, a purge port, and an intake port are fixed to a mounting base. In order to construct an evaporative system using this module, it is only necessary to attach a modular mounting base with a canister etc. so as to cover the upper opening provided in the fuel tank. The effect of simplification is obtained.
Also, because the canister is built into the fuel tank,
Even if a conventional evaporative line is not provided, the inside of the canister and the inside of the fuel tank can be communicated by the tank internal pressure control valve fixed to the mounting base. Since the evaporative line can be eliminated as described above, the cost can be reduced accordingly.

In the United States, on-board refueling recovery (ORVR) regulations have begun. The ORVR regulation is a regulation for preventing the fuel vapor from being released from the fuel tank to the atmosphere during refueling. In order to make the conventional evaporative system comply with the ORVR regulations, for example, as shown in FIG.
It is proposed to provide a refueling line 110 made of a rubber hose for allowing air containing evaporated fuel to flow from the fuel tank 101 to the canister 104 with low resistance, and to attach a refueling valve 111 for controlling opening and closing of the refueling line 110. Have been. When the refueling valve 111 is opened at the time of refueling and this line 110 is opened, the fuel tank 101
When fuel flows into the canister 104, the fuel vapor in the fuel tank 101 is pushed out through the refueling line 110 to the canister 104, and the fuel vapor is adsorbed by the activated carbon C in the canister 104, and is discharged as clean air from the suction port 106 to the outside Is discharged to

The evaporative system module of the present invention is also preferably used for constructing an evaporative system conforming to the ORVR regulations. The refueling valve and the air hole may be fixed to the mounting base. With this configuration, when constructing an evaporative system conforming to the ORVR regulations, it is only necessary to mount the mounting base in which the refueling valve and the like are modularized so as to cover the upper opening provided in the fuel tank. Thus, the effect of simplifying the mounting operation as compared with the related art can be obtained. Also, since the canister is built into the fuel tank, it is possible to connect the inside of the canister and the inside of the fuel tank by the refueling valve fixed to the mounting base without providing a conventional refueling line. it can. Since the refueling line can be eliminated as described above, the cost can be reduced accordingly.

In the evaporative system module of the present invention,
The multifunctional valve may be fixed to the mounting base. This multi-function valve incorporates a tank internal pressure control valve and a refueling valve in one housing, has a tank passage shared by both valves on the fuel tank side of both valves, and normally opens this tank passage. It has a rollover valve that closes the tank passage when the vehicle falls. When the vehicle falls, there are two ways to leak fuel from the fuel tank through the canister through the intake port: a path from the fuel tank to the canister via the tank internal pressure control valve, and a path from the fuel tank to the canister via the refueling valve. Since the rollover valve is closed in both paths, there is no risk of fuel leakage.

In the evaporative system module of the present invention,
As the refueling valve, it is preferable to employ a diaphragm valve that opens using a negative pressure generated by the flow of fuel injected into the fuel tank during refueling. In this case, the refueling valve can be opened at the time of refueling with a simple configuration.

In the evaporation system module of the present invention,
The air cleaner may be fixed to the mounting base. This air cleaner plays the role of cleaning the outside air drawn from the intake port and sending it to the canister. In this case, since the air cleaner is also modularized, an effect of simplifying the mounting operation can be obtained.

In the evaporation system module of the present invention,
A fuel pump incorporated in the fuel tank and a fuel supply port for supplying the fuel sucked up by the fuel pump to the injector of the internal combustion engine may be fixed to the mounting base. In this case, since the fuel pump is also modularized, an effect that the mounting operation is further simplified can be obtained.

In the evaporation system module of the present invention,
A leak check device for checking the leak of the canister and the fuel tank may be fixed to the mounting base. As part of On-Board Diagnosis II (OBDII), leak checking of canisters and fuel tanks is performed. Here, the leak checking device is fixed to the mounting base and modularized, so leak checking is easy. Can be done.

Here, the leak check means that after the negative pressure of the intake pipe is introduced into the fuel tank and the canister, the fuel tank and the canister are closed, and a change in the internal pressure at that time is detected to determine the presence or absence of a leak. To look up. In addition, the leak check device refers to members such as an electromagnetic valve and a sensor necessary for performing such a leak check. However, in the evaporative system of the present invention, it is necessary to fix the leak check device to the mounting base. All the members may be used, but some members necessary for the leak check may be used.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of the evaporation system module, FIG. 2 is a front view, FIG. 3 is a sectional view taken along line AA of FIG. 1, FIG. 4 is a sectional view taken along line BB of FIG. 1, and FIG. FIG. 6
FIG. 2 is a sectional view taken along line DD of FIG. 1. 7A and 7B are explanatory views of the fuel tank according to the present embodiment. FIG. 7A is a plan view, and FIG.
It is E sectional drawing.

The evaporation system module 10 is a module in which various members are fixed to a mounting base 11 which is mounted so as to close an upper surface opening of the fuel tank 1 (see FIG. 7). Here, various members are the canister 12,
These are a multi-function valve 20, a purge port 15, an intake port 16, an air cleaner 17, an atmosphere release valve 18, a fuel pump 25, a fuel supply port 27, and components of a leak check device.

When the mounting base 11 is attached to the upper surface opening of the fuel tank 1, the canister 12
It is built in. The canister 12 is filled with activated carbon capable of adsorbing and desorbing evaporated fuel. The multi-function valve 20 has a refueling valve 21, a tank internal pressure control valve 22, and a rollover valve 23 incorporated in one housing.

The refueling valve 21 is shown in FIGS.
As shown in FIG. 2, a cylindrical first canister passage 21a is provided at the center and connected to the inside of the canister 12, and an annular first tank connected to the inside of the fuel tank 1 via a rollover valve 23 (described later) around the first canister passage 21a. A passage 21b is provided. A diaphragm 21f integrated with the valve body 21c is provided at an upper opening of the first canister passage 21a, and the valve body 21c is urged by a spring 21d so as to close the opening of the first canister passage 21a. The inside of the refueling valve 21 is partitioned by a diaphragm 21f, of which a spring chamber in which a spring 21d is disposed has an operation port 21e. Diaphragm 2
If the negative pressure generated by the flow of fuel injected into the fuel tank 1 at the time of refueling is applied to the operation port 21e, the valve 1f is lifted together with the valve element 21c by the action of the negative pressure.

As shown in FIGS. 5 and 6, the tank internal pressure control valve 22 is provided with a cylindrical second canister passage 22a connected to the inside of the canister 12 at the center thereof, and a connection passage 24 around the second canister passage. An annular second tank passage 22b connected to the first tank passage 21b of the fueling valve 21 is provided. Thus, the first and second tank passages 2
Since 1b and 22b communicate with each other, they can be said to be a common tank passage for the refueling valve 21 and the tank internal pressure control valve 22. The diaphragm 22 integrated with the valve body 22c is provided at the upper opening of the second canister passage 22a.
f is provided, and the valve body 22c is connected to the second canister passage 22a.
Is urged by a spring 22d to close the opening.
When the internal pressure of the fuel tank 1 becomes equal to or higher than a predetermined pressure, the diaphragm 22f operates the valve body 22c by the action of the pressure.
It is set to be lifted together with.

The tank internal pressure control valve 22 has a check valve 22e between the second tank passage 22b and the inside of the canister 12 (see FIG. 5). This check valve 2
2e controls the pressure difference between the internal pressure of the canister 12 and the internal pressure of the fuel tank 1 to be a predetermined pressure.

The rollover valve 23 is provided on the fuel tank 1 side of the first tank passage 21b, as shown in FIG. This rollover valve 23 is provided with a housing 23a.
A small hole 23c is provided on the bottom surface of the housing 23a, and a small hole 23d is provided on the side surface. If the fuel level is lower than the housing 23a (see FIG. 4A), the float 23b opens the lower opening of the first tank passage 21b by its own weight. On the other hand, the liquid level of the fuel in the fuel tank 1 is reduced by the housing 2 such as when the vehicle falls or corners.
3a (see FIG. 4 (b)), the fuel flows into the housing 23a through the small holes 23c and 23d of the rollover valve 23, so that the float 23b rises by buoyancy, and further, the bottom surface of the housing 23a. A spring 23e is provided between the (retainer) and the float 23b, and the float 23b is
e is assisted by the first tank passage 2
Close the lower opening of 1b.

Since the first tank passage 21b and the second tank passage 22b are connected, they can be regarded as a common tank passage as described above. For this reason, the rollover valve 23 is disposed on both the refueling valve 21 and the tank internal pressure control valve 22 on the side of the fuel tank 1. When the vehicle falls, the fuel is supplied to the fuel tank 1.
There are two types of paths that leak from the tank through the canister 12, such as a path from the tank passage 21b through the tank internal pressure control valve 22 to the canister 12, and a path from the tank passage 22b through the refueling valve 21 to the canister 12. 23 closes both paths.

As shown in FIG. 1, the purge port 15 is a nipple fixed to the upper surface of the mounting base 11 and communicates with the inside of the canister 12. This purge port 15
Is connected to an intake pipe 105 of an internal combustion engine via a purge valve 108, as in the conventional example (see FIG. 8).

The intake port 16 is fixed to the upper surface of the mounting base 11 as shown in FIG. 1, and communicates with the outer peripheral surface of the element 17a of the air cleaner 17 similarly fixed to the mounting base 11. The air cleaner 17 is provided in the fuel tank 1
The gas is purified by passing gas from the outer peripheral surface of the element 17a toward the center of the element 17a.
Is passed through the vent solenoid valve 33 into the canister 12.

As shown in FIG. 3, the air release valve 18 has an air hole 18a communicating with the air at the center thereof, and a canister passage 18b connected to the inside of the canister 12 around the air hole 18a. A diaphragm 18f integrated with the valve 18c is provided at the upper opening of the air hole 18a, and the valve 18c is urged by a spring 18d to close the upper opening of the air hole 18a. Diaphragm 18f
When the pressure of the canister passage 18b increases due to a large flow rate of air discharged from the inside of the fuel tank 1 as in refueling, the pressure is raised together with the valve element 18c by the action of the pressure.

When the mounting base 11 is attached to the upper opening of the fuel tank 1 (see FIG. 7),
It is built into the fuel tank 1. The electrode terminal 25 a of the fuel pump 25 is fixed to the surface of the mounting base 11. Further, the fuel pump 25 is integrated with a liquid level gauge 28 for detecting the remaining fuel amount.

The fuel supply port 27 serves to supply the fuel sucked up by the fuel pump 25 to the injector of the internal combustion engine. The pressure sensor 31, the bypass solenoid valve 32, and the vent solenoid valve 33 that constitute the leak check device are also fixed to the mounting base 11, respectively. Among them, the pressure sensor 31 is a sensor for detecting the internal pressure of the canister 12, and its electrode terminal 31a is formed integrally with the pressure sensor 31. The bypass solenoid valve 32 is a valve that connects and disconnects the second tank passage 22b and the second canister passage 22a of the tank internal pressure control valve 22, and its electrode terminal 32a is formed integrally with the bypass solenoid valve 32. I have. Further, the vent solenoid valve 33 is a valve for communicating and shutting off the air cleaner 17 and the canister 12, and its electrode terminal 33a is formed integrally with the vent solenoid valve 33.

Next, an example of using the evaporation system module 10 of the present embodiment will be described. As shown in FIG. 7, this evaporation system module 10
The fuel tank 1 is integrated with the fuel tank 1 by setting it so as to cover an upper surface opening provided in the fuel tank 1 and fastening the periphery of the mounting base 11 with bolts. And fuel supply port 2
7 is connected to an injector (not shown) of the internal combustion engine, and the purge port 15 is connected to the intake pipe 105 via a purge valve 108 shown in FIG. The operation port 21 e of the refueling valve 21 of the multifunction valve 20 is connected to the side wall of the fuel conduit 1 a of the fuel tank 1. Further, the pressure sensor 31, the bypass solenoid valve 32, and the electrode terminals 31a, 32a, 33a of the vent solenoid valve 33 constituting the leak check device are connected to a vehicle-mounted ECU (not shown). Note that the bypass solenoid valve 32 is normally closed, and the vent solenoid valve 33 is normally open. By connecting in this manner, an evaporation system is constructed.

In this evaporative system, when the internal pressure of the fuel tank 1 rises to a predetermined pressure or more when the engine is stopped, the inside of the fuel tank 1 becomes the second tank of the tank internal pressure control valve 22 of the multifunctional valve 20. Since it is connected to the passage 22b, the diaphragm 21f of the tank internal pressure control valve 22 is lifted together with the valve body 21c to open the valve. Thereby, the air containing the fuel vapor in the fuel tank 1 moves to the canister 12, and the fuel vapor is adsorbed on the activated carbon in the canister 12.

On the other hand, when the engine is running, the fuel pump 25 is connected to the sub-tank 2 provided on the lower surface of the fuel tank 1.
The fuel inside 6 is sucked up, and the fuel is supplied to the injector via a fuel supply port 27 fixed to the surface of the mounting base 11. In addition, the sub-tank 26 secures a sufficient depth to store the reduced fuel in a small volume so that the fuel pump 25 can smoothly suck up the fuel even if the fuel in the fuel tank 1 becomes low. It is.

During the operation of the engine, outside air is sucked from the intake port 16 by the negative pressure of the intake pipe, and the outside air flows into the canister 12 through the air cleaner 17 and the vented solenoid valve 33 in an open state, and desorbs from the activated carbon. The fuel is sent to the intake pipe through the purge port 15 together with the evaporated fuel, and is burned in the combustion chamber of the internal combustion engine together with the mixture of fuel and air. In addition, the vent solenoid valve 33 may be constantly open in normal times, but may be appropriately opened and closed by an in-vehicle ECU.

In this evaporative system, at the time of refueling, a negative pressure generated in the gap between the fuel conduit 1a and the fuel flowing into the fuel conduit 1a is supplied to the spring chamber via the operation port 21e of the refueling valve 21. The diaphragm 21f is lifted together with the valve body 21c against the bias of the spring 21d, and the first tank passage 21b and the first canister passage 21a communicate with each other. When refueling, the fuel line 1
Since the air containing the evaporated fuel in the fuel tank 1 is sent to the canister 12 by an amount corresponding to the fuel flowing into the canister a, the pressure in the canister passage 18b of the atmosphere release valve 18 increases, and the diaphragm 18f is pushed up together with the valve element 18c. Open the valve.

That is, in this evaporative system, at the time of refueling, the air containing the evaporated fuel in the fuel tank 1 is sent to the canister 12, and the evaporated fuel is adsorbed and purified by the activated carbon in the canister 12, and then the atmosphere release valve 18 Through the atmosphere hole 18a. Therefore, it complies with the ORVR regulations. As shown in FIG. 6, the passage cross-sectional area of the first canister passage 21a of the refueling valve 21 is larger than the passage cross-sectional area of the second canister passage 22a of the tank internal pressure control valve 22, so that the air resistance and air resistance are low. Can be distributed and the refueling operation can be performed smoothly.

In this evaporation system, an on-board EC
U periodically performs a leak check as part of OBDII. The leak check is performed in the following procedure. That is, the on-vehicle ECU controls the bypass solenoid valve 32.
Is opened to communicate the inside of the canister 12 with the inside of the fuel tank 1, the vent solenoid valve 33 is closed, and the purge valve 108 (see FIG. 8) is opened to apply the intake pipe negative pressure to the canister 12. By closing the purge valve 108, the fuel tank 1 and the canister 12 are closed. Then, based on the change in the detection signal of the pressure sensor 31 before and after the lapse of a predetermined time in this state, it is determined whether or not there is a leak. The pressure sensor 31 is a canister 1
2, the internal pressure of the canister 12 is communicated with the interior of the fuel tank 1 by the bypass solenoid valve 32, so that the internal pressure of both the canister 12 and the fuel tank 1 is substantially detected. . After the end of the leak check, the in-vehicle ECU closes the bypass solenoid valve 32 and opens the vent solenoid valve 33.

According to the evaporation system module described in detail above, the following effects can be obtained. In order to construct the evaporative system, it is only necessary to mount the mounting base 11 to which various members are fixed so as to close the upper surface opening provided in the fuel tank 1, so that the mounting operation is simplified as compared with the related art.

Since the canister 12 is built in the fuel tank 1, the inside of the canister 12 and the inside of the fuel tank 1 can be controlled by the tank internal pressure control valve 22 fixed to the mounting base 11 without providing a conventional evaporation line. Can be communicated with. As a result, since the evaporation line can be eliminated, the cost can be reduced accordingly.

In the evaporative system module 10, since the air hole 18a having the refueling valve 21 and the air release valve 18 is also fixed to the mounting base 11, an evaporative system conforming to the ORVR regulations can be constructed by a simple mounting operation. it can. Further, since it is not necessary to provide a refueling line, the refueling line can be eliminated, and the cost can be reduced accordingly.

Since the multi-function valve 20 provided with the rollover valve 23 on the fuel tank 1 side of the refueling valve 21 and the tank internal pressure control valve 22 is employed, the rollover valve 23 closes when the vehicle falls. The fuel flows from the fuel tank 1 into the canister 12 via the refueling valve 21 and the fuel pressure from the fuel tank 1 to the tank internal pressure control valve 2.
The fuel is also prevented from flowing into the canister 12 through the fuel cell 2. Therefore, it is possible to reliably prevent the fuel from leaking when the vehicle falls.

As the refueling valve 21 employs a diaphragm valve that opens by utilizing a negative pressure generated by the flow of fuel injected into the fuel tank 1 at the time of refueling, the refueling valve 21 has a simple structure and is refueled at the time of refueling. The elling valve 21 can be opened. The air cleaner 17 and the fuel pump 25 built in the fuel tank 1 are also fixed to the mounting base 11, so that the mounting operation is further simplified.

Since the leak check device for checking the leak of the canister 12 and the fuel tank 1 is also fixed to the mounting base 11, the leak check of the canister 12 and the fuel tank 1 performed as a part of the OBDII can be easily performed. It should be noted that the embodiments of the present invention are not limited to the above-mentioned embodiments at all, and it goes without saying that various embodiments can be adopted as long as they belong to the technical scope of the present invention.

For example, in the above embodiment, the pressure sensor 3
1. Bypass solenoid valve 32, vent solenoid valve 33, each electrode terminal 31a, 32 of fuel pump 25
Although a, 33a, and 25a are individually provided on the upper surface of the mounting base 11, a connector in which these electrode terminals are combined may be formed at one location on the upper surface of the mounting base 11.

Although the diaphragm valve is used as the refueling valve 21, the tank internal pressure control valve 22, and the atmosphere release valve 18, an electromagnetic valve whose opening and closing are controlled by an on-vehicle ECU may be used. Further, the air cleaner 17 is eliminated, and an air cleaner (not shown) for purifying air introduced into the intake pipe 105 is provided with a vent solenoid valve 33.
May be connected upstream.

[Brief description of the drawings]

FIG. 1 is a plan view of an evaporation system module.

FIG. 2 is a front view of an evaporation system module.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a sectional view taken along line DD of FIG. 1;

FIG. 7 is an explanatory diagram of a fuel tank according to the embodiment;
(A) is a plan view, and (b) is an EE cross-sectional view.

FIG. 8 is a schematic explanatory view of a conventional evaporation system.

FIG. 9 is a schematic explanatory view of an evaporation system conforming to ORVR regulations.

[Description of Signs] 1 ... fuel tank, 1a ... fuel conduit, 10 ...
Evaporation system module, 11 ... mounting base, 12
... Canister, 15 ... Purge port, 16 ...
・ Intake port, 17 ・ ・ ・ Air cleaner, 18 ・ ・ ・ Air release valve, 18a ・ ・ ・ Air vent, 20 ・ ・ ・ Multi-function valve,
21: refueling valve, 22: tank internal pressure control valve, 23: rollover valve, 24: connection passage, 25: fuel pump, 27: fuel supply port, 31 ··· Pressure sensor, 32: bypass solenoid valve, 33: vent solenoid valve.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F02M 37/00 301 F02M 37/00 301G 37/10 37/10 B F16K 17/04 F16K 17/04 H 24 / 00 24/00 J (72) Inventor Takashi Ando No. 1 Ochaya, Hashime-cho, Okazaki-shi, Aichi Futaba Sangyo Co., Ltd. F-term (reference) 3G044 BA21 BA27 BA39 BA40 GA03 GA04 GA06 GA07 GA08 GA10 GA12 GA30 3H055 AA02 AA22 BC01 CC04 CC07 CC20 CC21 GG22 JJ03 3H059 AA09 BB22 CA13 CC01 CD05 EE01 FF03 FF05 FF16 FF17

Claims (7)

[Claims] 1. A module for constructing an evaporative system for preventing evaporative fuel (also referred to as evaporative gas) evaporating from a fuel tank of an internal combustion engine from being released into the atmosphere. A mounting base attached to close the mounting base; a canister fixed to the mounting base and built into the fuel tank; and a canister fixed to the mounting base and evaporating the fuel tank when an internal pressure of the fuel tank becomes a predetermined pressure or more. A tank internal pressure control valve that opens to send air containing fuel to the inside of the canister; a purge port that is fixed to the mounting base and connects the inside of the canister to an intake pipe of an internal combustion engine; An intake port that is fixed to the mounting base and that sucks outside air to send out the evaporated fuel detached from the canister to the purge port. Evaporative system module, wherein the door. 2. The evaporative system module according to claim 1, wherein the refueling device is fixed to the mounting base, and is opened to send out the air containing the fuel vapor in the fuel tank to the inside of the canister when refueling. An evaporative system module comprising: an elling valve; and an air release valve that is fixed to the mounting base and that opens to discharge the air that has been processed by the canister to the outside during refueling. 3. The evaporation system module according to claim 2, wherein a multi-function valve is fixed to the mounting base, and the multi-function valve is provided in one housing with the tank internal pressure control valve and the refueling. A valve is incorporated, and a tank passage shared by both valves is provided on the fuel tank side of both valves, and a rollover valve is provided that opens the tank passage normally and closes the tank passage when the vehicle falls down. Evaporative system module. 4. The evaporation system module according to claim 2, wherein the refueling valve is opened by utilizing a negative pressure generated by a flow of fuel injected into a fuel tank during refueling. An evaporation system module, characterized in that: 5. The evaporation system module according to claim 1, wherein an air cleaner is fixed to the mounting base, and the outside air sucked from the intake port passes through the air cleaner. An evaporative system module which is sent to the purge port via a canister. 6. The evaporation system module according to claim 1, wherein the mounting base includes a fuel pump built in the fuel tank, and a fuel pumped by the fuel pump. An evaporative system module, wherein a fuel supply port for supplying to an injector of an engine is fixed. 7. The evaporative system module according to claim 1, wherein a leak check device for performing a leak check of the canister and the fuel tank is added to the mounting base. module.