CN210049974U - Carbon tank assembly for vehicle and arrangement structure thereof - Google Patents

Abstract

The utility model discloses a carbon canister component for a vehicle and an arrangement structure thereof, the carbon canister component is provided with an adsorption port, a vent, a water leakage port and a desorption port, the carbon canister component comprises a carbon canister body and a valve cavity integrated on the carbon canister body, and a through hole for communicating the carbon canister body and the valve cavity is arranged between the carbon canister body and the valve cavity; the adsorption port, the vent and the water leakage port are positioned on the carbon canister body, the desorption port is positioned on the valve cavity, and a one-way mechanism which only allows the flow from the carbon canister body to the desorption port is arranged in the valve cavity; the carbon canister component of the utility model can fully absorb fuel oil gas, desorb the fuel oil gas when the engine runs properly, send the fuel oil gas to the engine for combustion, avoid the waste of fuel oil, reduce the volatilization of the fuel oil gas into the atmosphere to pollute the air, reduce the oil consumption, save energy and reduce emission, is beneficial to environmental protection, saves the installation parts and the assembly steps required for independently installing the check valve, effectively reduces the production cost and improves the assembly efficiency; meanwhile, the arrangement structure is greatly simplified, and the design freedom degree is higher.

Description

Carbon tank assembly for vehicle and arrangement structure thereof

Technical Field

The utility model relates to a motorcycle, especially a charcoal jar subassembly for vehicle and arrangement structure thereof.

Background

The carbon canister arranged on the motorcycle can adsorb fuel steam in the fuel tank, when the vehicle is in a stop state, oil gas volatilized in the fuel tank is adsorbed into the carbon canister, and when the vehicle is in an operating state, oil gas molecules adsorbed in the carbon canister are sucked into the air inlet pipe under the negative pressure action of the air inlet pipe of the engine and enter the combustion chamber of the engine to be combusted for effective utilization.

Referring to fig. 1, the conventional layout of the canister of the motorcycle comprises a canister 1 'fixed on the motorcycle, a check valve 2' arranged below the canister 1 'and a throttle body 3' communicated with an air inlet of the engine.

Wherein, the carbon canister 1 ' is provided with an adsorption port 11 ', an air vent 12 ', a water leakage port 13 ' and a desorption port 14 '; a desorption port 14 ' of the carbon canister is connected into a one-way valve 2 ' through a flexible connecting pipe 4 ', the one-way valve 2 ' is connected to a throttle valve body 3 ' below the carbon canister through another flexible connecting pipe 4 ', and the throttle valve body 3 ' is connected to an air inlet of an engine so as to separate oil gas molecules adsorbed in the carbon canister from entering a combustion chamber for combustion.

The above carbon canister arrangement structure has the following problems:

(1) the components are distributed, the required arrangement space is large, the arrangement or the design of other components of the motorcycle is hindered, and the design freedom is reduced;

(2) two ends of the check valve 7' need to be connected with hoses at two ends by using a hoop and are fixed on the frame by means of a bracket, so that the installation is complex, the number of required installation parts is large, and the cost is high;

(3) at least two sections of connecting pipes are arranged between the carbon tank desorption port 14 'and the throttle valve body 3', the connecting process is complicated, and the assembling process is more.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a carbon tank component for a vehicle and an arrangement structure thereof.

The utility model provides a technical scheme that its technical problem adopted is:

a carbon tank component for a vehicle is provided with an adsorption port, a vent, a water leakage port and a desorption port, and comprises a carbon tank body and a valve cavity integrated on the carbon tank body, wherein a through hole for communicating the carbon tank body and the valve cavity is formed between the carbon tank body and the valve cavity; the adsorption port, the air vent and the water leakage port are positioned on the carbon tank body, the desorption port is positioned on the valve cavity, and a one-way mechanism which only allows the flow from the carbon tank body to the desorption port is arranged in the valve cavity.

The valve cavity comprises an annular cavity wall arranged around the through hole, and a valve cover is installed at an opening of the annular cavity wall.

The desorption port is positioned on the wall of the annular cavity.

The normal running state of the motorcycle is taken as a reference direction, the desorption port is a pipe body extending upwards, and the pipe orifice end is higher than the water leakage port.

The valve cavity is internally provided with a tubular installation part communicated with the through hole, and the one-way mechanism is installed in the tubular installation part.

The one-way mechanism includes a sealing member held to close the through hole by an elastic member.

The valve cover and the tubular installation part are in the same axial direction, and the elastic piece is clamped between the sealing piece and the valve cover.

A chamfer is arranged between the tubular mounting part with a relatively large diameter value and the through hole; the sealing element is a steel ball and is abutted against the inclined wall formed by the chamfer under the action of the elastic element.

The utility model provides an arrangement structure of canister subassembly for vehicle, includes the throttle valve body that adopts foretell canister subassembly and communicate with the engine intake pipe, the desorption mouth of canister subassembly passes through the throttle valve body intercommunication of connecting pipe with the below.

At least one section of the connecting pipe is arranged in an inverted U shape or an inverted V shape, and the vertex position of the connecting pipe is higher than the water leakage port of the carbon tank component.

The utility model has the advantages that: the valve cavity with the one-way mechanism arranged inside is integrated on the carbon canister main body to form the carbon canister assembly, so that a one-way valve does not need to be additionally installed, related installation parts and assembly steps are omitted, the production cost is effectively reduced, and the assembly efficiency is improved; meanwhile, compared with the conventional arrangement mode, the arrangement structure of the carbon tank component is greatly simplified, the required arrangement space is small, and the freedom degree of the design of the internal structure of the motorcycle is higher.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a carbon canister and its arrangement of a prior art motorcycle;

FIG. 2 is a schematic view of the construction of the canister assembly of the present invention;

FIG. 3 is a partial cross-sectional view of the canister assembly of the present invention;

FIG. 4 is an enlarged partial view of FIG. 3;

FIG. 5 is a partially assembled schematic view of the canister assembly of the present invention;

FIG. 6 is an assembled schematic view of FIG. 5 in a cross-sectional state;

FIG. 7 is a schematic view of the canister assembly of the present invention connected to a motorcycle;

fig. 8 is a schematic view of the connection between the canister assembly and the throttle body.

Detailed Description

Referring to fig. 2 to 4, a canister assembly for a vehicle, the canister assembly 1 is provided with an adsorption port 11, a vent 12, a water leakage port 13 and a desorption port 14, the canister assembly 1 comprises a canister body 2 and a valve cavity 3 integrated on the canister body 2, and a through hole 15 communicating the canister body 2 and the valve cavity 3 is arranged between the canister body 2 and the valve cavity 3; wherein, adsorb mouth 11, blow vent 12 and leak the mouth 13 and be located canister body 2, the inside adsorbed substance that then packs the volatile oil gas molecule of absorption oil tank of then filling of canister body 2 is like active carbon, and desorption mouth 14 is located valve pocket 3 and inside intercommunication, and valve pocket 3 inside is equipped with and only allows by the inside check mechanism 4 to the 14 direction flows of desorption mouth of canister body 2. By adopting the structure, a check valve does not need to be additionally installed, related installation parts and assembly steps are omitted, the production cost is effectively reduced, and the assembly efficiency is improved; meanwhile, compared with the conventional arrangement mode, the arrangement structure of the carbon tank component 1 is greatly simplified, the required arrangement space is small, and the freedom degree of the design of the internal structure of the motorcycle is higher.

Further, the valve cavity 3 comprises an annular cavity wall 31 which is arranged around the through hole 15 and is integrally formed with the carbon canister body 2, and an opening of the annular cavity wall 31 is hermetically provided with a valve cover 32 to form an independent cavity.

The desorption port 14 is integrally formed on the annular cavity wall 31, so that the valve cavity 3 is simple in overall structure and convenient to assemble.

The normal running state of the motorcycle is taken as a reference direction, the desorption port 14 is a pipe body extending upwards, and the pipe orifice end is higher than the water leakage port 13, so that the situation that when fuel is added into the fuel tank excessively, the fuel entering the carbon tank assembly 1 cannot be discharged in time and flows out from the desorption port 14, and the situation that the oil gas at the throttle valve body 5 is excessively concentrated and cannot be started is avoided.

Referring to fig. 5 and 6, specifically, a tubular mounting portion 33 penetrating through the through hole 15 is arranged inside the valve cavity 3, and the one-way mechanism 4 is mounted in the tubular mounting portion 33; meanwhile, in order to facilitate oil and gas circulation, the pipe wall of the tubular mounting part 33 is provided with an open slot.

The unidirectional mechanism 4 includes a seal member 42 held to close off the through-hole 15 by an elastic member 41.

Further, the valve cover 32 is fixed to the annular chamber wall 31 in the same axial direction as the tubular mounting portion 33 by fixing the valve cover 32 to the annular chamber wall 31, and the check mechanism 4 is mounted in the tubular mounting portion 33 while interposing the elastic member 41 between the seal member 42 and the valve cover 32.

The sealing element 42 is preferably steel balls, the elastic element 41 is preferably a spring, and the two materials are common standard parts, so that the performance is reliable and the cost is low. Therefore, a chamfer can be arranged between the tubular mounting part 33 with a relatively large diameter value and the through hole 15, so that the sealing element 42 is pressed against the inclined wall formed by the chamfer under the action of the elastic element 41 to realize sealing, the requirement on the machining precision is relatively low, and the manufacturing cost is low.

The arrangement of the canister assembly 1 in the interior of a motorcycle will be explained in detail below with reference to the canister assembly 1 described above.

Refer to fig. 7, fig. 8, promptly the utility model discloses canister subassembly 1's arrangement schematic diagram, canister subassembly 1 installation is fixed on the frame that is close to the oil tank relatively, can subtract the short pipe connection between absorption mouth 11 and the oil tank, and then arrange in canister subassembly 1 below with throttle valve body 5 of engine intake pipe intercommunication, the desorption mouth 14 that sets up on valve pocket 3 is connected to throttle valve body 5 through flexible connection pipe 6, makes canister body 2 and throttle valve body 5 communicate under the state is opened to check mechanism 4.

Furthermore, at least one section of the connecting pipe 6 is arranged in an inverted U shape or an inverted V shape, and the vertex position 61 of the connecting pipe is higher than the water leakage port 13 of the carbon canister component 1, so that the situation that when fuel is added into the fuel tank excessively, the fuel entering the carbon canister component 1 cannot be discharged in time and flows out from the desorption port 14, and the oil gas at the throttle valve body 5 is too rich to start is avoided.

To sum up, the utility model discloses an it constitutes charcoal jar subassembly 1 to locate the check valve 7 integration between two sections connecting pipes 5 originally on charcoal jar main part 1 to greatly simplify its and throttle valve body between arrangement structure, showing that reduce manufacturing cost, improvement assembly efficiency.

And in the use, the utility model discloses a carbon canister subassembly can fully absorb fuel oil gas to carry out the desorption at the appropriate opportunity of engine operation, send the oil gas to the engine internal combustion, avoid the fuel waste, also reduce the oil gas and volatilize polluted air in the atmosphere, reduce oil consumption, energy saving and emission reduction does benefit to the environmental protection.

Claims (10)

1. The utility model provides a carbon canister subassembly for vehicle, carbon canister subassembly (1) is equipped with adsorbs mouth (11), blow vent (12), weeping hole (13) and desorption mouth (14), its characterized in that: the carbon canister component (1) comprises a carbon canister body (2) and a valve cavity (3) integrated on the carbon canister body (2), and a through hole (15) for communicating the carbon canister body (2) and the valve cavity (3) is formed between the carbon canister body and the valve cavity; the adsorption port (11), the vent (12) and the water leakage port (13) are located on the carbon canister body (2), the desorption port (14) is located on the valve cavity (3), and the valve cavity (3) is internally provided with a one-way mechanism (4) which only allows the flow from the carbon canister body (2) to the desorption port (14) in the direction.

2. The carbon canister assembly according to claim 1, wherein: the valve cavity (3) comprises an annular cavity wall (31) arranged around the through hole (15), and a valve cover (32) is installed at an opening of the annular cavity wall (31).

3. The canister assembly according to claim 2, wherein: the desorption port (14) is positioned on the annular cavity wall (31).

4. The canister assembly according to claim 2, wherein: the normal running state of the motorcycle is taken as a reference direction, the desorption port (14) is a pipe body extending upwards, and the pipe orifice end is higher than the water leakage port (13).

5. The canister assembly according to any of claims 2 to 4, wherein: the valve cavity (3) is internally provided with a tubular installation part (33) which is communicated with the through hole (15), and the one-way mechanism (4) is installed in the tubular installation part (33).

6. The carbon canister assembly according to claim 5, wherein: the one-way mechanism (4) comprises a sealing member (42) which is kept to close the through hole (15) through an elastic member (41).

7. The carbon canister assembly according to claim 6, wherein: the valve cover (32) and the tubular mounting portion (33) are in the same axial direction, and the elastic member (41) is interposed between the sealing member (42) and the valve cover (32).

8. The carbon canister assembly according to claim 6, wherein: a chamfer is arranged between the tubular mounting part (33) with a relatively large diameter value and the through hole (15); the sealing element (42) is a steel ball and is abutted against an inclined wall formed by the chamfer under the action of the elastic element (41).

9. An arrangement structure of a canister assembly for a vehicle, comprising a canister assembly (1) according to any one of claims 1 to 8 and a throttle body (5) communicating with an engine intake pipe, characterized in that: and a desorption opening (14) of the carbon tank component (1) is communicated with a throttle valve body (5) below through a connecting pipe (6).

10. The arrangement of claim 9, wherein: at least one section of the connecting pipe (6) is arranged in an inverted U shape or an inverted V shape, and the vertex position (61) of the connecting pipe is higher than the water leakage port (13) of the carbon tank component (1).

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