CN210003432U

CN210003432U - FLVV valve fixing structure

Info

Publication number: CN210003432U
Application number: CN201920676389.XU
Authority: CN
Inventors: 廖宁
Original assignee: Beijing Changcheng Huaguan Automobile Technology Development Co Ltd
Current assignee: CH Auto Technology Co Ltd; Beijing Changcheng Huaguan Automobile Technology Development Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-31
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses an FLVV valve fixed knot constructs, including the fuel pump of car with install FLVV valve (2) under fuel pump flange (1), the terminal surface downwardly extending forms FLVV valve fixing base (3) under fuel pump flange (1), FLVV valve fixing base (3) are cavity and inner wall and are provided with draw-in groove (3-3), FLVV valve (2) outer wall is provided with jack catch (2-1), FLVV valve (2) insert in the cavity of FLVV valve fixing base (3), and jack catch (2-1) card go into in draw-in groove (3-3), gas outlet (2-2) of FLVV valve (2) and mesopore (1-1) through the fuel pump flange communicate with steam chamber (4) on the fuel pump, the utility model discloses integrate the FLVV valve on the fuel pump, reduce the fuel evaporation emission limit value.

Description

FLVV valve fixing structure

Technical Field

The utility model relates to a fuel evaporation of traditional fuel motorcycle type and thoughtlessly move the fuel evaporation emission technical field of motorcycle type, concretely relates to novel FLVV valve fixed knot construct.

Background

The national six-emission regulations are formally released, and the national six-vehicle type is successively pushed out by each large vehicle factory, compared with the vehicle type before the national five-standard, the national six-vehicle type greatly reduces the emission limit value of the whole vehicle, particularly the evaporative emission of fuel oil, so that the requirements on each part of a fuel oil system are very high. Most of the six motorcycle types in China weld the FLVV valve (refuel the spacing breather valve) to the fuel tank, because of involving the trompil welding on the fuel tank body, can increase the fuel evaporation emission limit value.

Disclosure of Invention

An object of the utility model is to provide novel FLVV valve fixed knot construct, with the FLVV valve integration to the fuel pump on, reduce the fuel evaporation emission limit value, the utility model discloses a purpose is realized through following technical scheme:

FLVV valve fixing structures comprise an automobile fuel pump and an FLVV valve installed below a fuel pump flange, wherein the lower end face of the fuel pump flange extends downwards to form an FLVV valve fixing seat, the FLVV valve fixing seat is a hollow cavity, a clamping groove is formed in the inner wall of the FLVV valve fixing seat, clamping claws are arranged on the outer wall of the FLVV valve, the FLVV valve is inserted into the hollow cavity of the FLVV valve fixing seat and clamped into the clamping groove, and an air outlet of the FLVV valve is communicated with a steam cavity at the upper end of the fuel pump through a middle hole of the fuel.

In order to ensure sufficient exhaust and convenient configuration, an exhaust pipe at the upper part of the fuel pump is a quick connector with the SAE diameter of 15.82 mm.

In order to prevent oil from overflowing, a sealing ring is arranged between the air outlet of the FLVV valve and a flange of the fuel pump.

, the sealing ring is FKM rubber.

As an improvement on the fixed inlet , the FLVV valve fixing seat is composed of an upper part and a lower part, the upper part is of a cylindrical structure connected with the lower edge of a flange of the fuel pump, the lower part is of two U-shaped protrusions extending downwards from two opposite sides of the cylindrical structure, clamping grooves are formed in the two U-shaped protrusions respectively, clamping claws are formed in two sides of the FLVV valve respectively, and the double-clamping-claw structure can prevent the FLVV valve from falling off and shaking.

, the upper part of the fixed seat of the FLVV valve is higher than the FLVV valve to fix the FLVV valve firmly.

In order to increase the strength of the fixed seat, reinforcing ribs are respectively arranged on two sides of the U-shaped protrusion at the position of the clamping groove.

The utility model has the advantages that:

the utility model discloses on the fuel pump is integrated to the FLVV valve, avoided trompil welding on the fuel tank body, reduced the fuel evaporation emission limit value.

The present invention will be described in further detail in with reference to the accompanying drawings and the following detailed description.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a sectional view taken along line B-B in fig. 3.

Reference numerals:

1. a fuel pump flange; an FLVV valve; 3, fixing the FLVV valve; 4. a steam chamber; 5. an exhaust pipe; 6. a seal ring; 2-1, a claw; 2-2, air outlet; 3-1. cylindrical structure; 3-2. U-shaped protrusions; 3-3, a clamping groove; 3-4, reinforcing ribs.

Detailed Description

Example 1

As shown in figures 1-5, FLVV valve fixing structures comprise an automobile fuel pump and an FLVV valve 2 installed below a fuel pump flange 1, the lower end face of the fuel pump flange 1 extends downwards to form an FLVV valve fixing seat 3, the FLVV valve fixing seat 3 is a hollow cavity, a clamping groove 3-3 is formed in the inner wall of the FLVV valve fixing seat 3, clamping claws 2-1 are arranged on the outer wall of the FLVV valve 2, the FLVV valve 2 is inserted into the hollow cavity of the FLVV valve fixing seat 3, the clamping claws 2-1 are clamped into the clamping groove 3-3, and an air outlet 2-2 of the FLVV valve 2 is communicated with a steam cavity 4 at the upper end of the fuel pump through a middle hole 1.

As shown in figures 2 and 3, the exhaust pipe 5 at the upper part of the fuel pump is a quick connector with the SAE diameter of 15.82 mm.

As shown in fig. 4, a sealing ring 6 is arranged between the outlet of the FLVV valve 2 and the fuel pump flange 1. The sealing ring 6 is FKM rubber.

As shown in fig. 1, 2, 4 and 5, the FLVV valve holder 3 is composed of an upper portion and a lower portion, the upper portion is a cylindrical structure 3-1 connected with the lower edge of a fuel pump flange 1, the lower portion is two U-shaped protrusions 3-2 extending downward from two opposite sides of the cylindrical structure 3-1, clamping grooves 3-3 are respectively arranged on the two U-shaped protrusions 3-2, and clamping claws 2-1 are respectively arranged on two sides of the FLVV valve 2.

As shown in figure 5, the cylindrical structure 3-1 at the upper part of the FLVV valve fixing seat 3 is higher than the LVV valve 2. as shown in figure 2, reinforcing ribs 3-4 are respectively arranged on two sides of the U-shaped protrusion 3-2 at the position of the clamping groove 3-3.

Claims

The fixing structure of the FLVV valve is characterized by comprising an automobile fuel pump and the FLVV valve (2) installed below a fuel pump flange (1), wherein the lower end face of the fuel pump flange (1) extends downwards to form a FLVV valve fixing seat (3), the FLVV valve fixing seat (3) is a hollow cavity, clamping grooves (3-3) are formed in the inner wall of the FLVV valve fixing seat, clamping jaws (2-1) are arranged on the outer wall of the FLVV valve (2), the FLVV valve (2) is inserted into the hollow cavity of the FLVV valve fixing seat (3), the clamping jaws (2-1) are clamped into the clamping grooves (3-3), and an air outlet (2-2) of the FLVV valve (2) is communicated with a steam cavity (4) at the upper end of the fuel pump through the middle hole (1-1) of the fuel.
2. The FLVV valve fixing structure of claim 1, wherein: the exhaust pipe (5) at the upper part of the fuel pump is a quick connector with the diameter of 15.82 mm.
3. The FLVV valve fixing structure of claim 1, wherein: a sealing ring (6) is arranged between the air outlet of the FLVV valve (2) and the flange (1) of the fuel pump.
4. The FLVV valve fixing structure of claim 3, wherein: the sealing ring (6) is FKM rubber.
5. The FLVV valve fixing structure according to claim 1, wherein the FLVV valve fixing seat (3) is composed of an upper part and a lower part, the upper part is a cylindrical structure (3-1) connected with the lower edge of a fuel pump flange (1), the lower part is two U-shaped protrusions (3-2) extending downwards from two opposite sides of the cylindrical structure (3-1), clamping grooves (3-3) are respectively arranged on the two U-shaped protrusions (3-2), and clamping claws (2-1) are respectively arranged on two sides of the FLVV valve (2).
6. The FLVV valve fixing structure of claim 5, wherein: the upper part of the FLVV valve fixing seat (3) is higher than the FLVV valve (2) in a cylindrical structure (3-1).
7. The FLVV valve fixing structure according to claim 5, wherein reinforcing ribs (3-4) are respectively arranged on two sides of the U-shaped protrusion (3-2) at the position of the clamping groove (3-3).