CN114962098A

CN114962098A - Water discharging device of fuel filter and automobile

Info

Publication number: CN114962098A
Application number: CN202210513183.1A
Authority: CN
Inventors: 贾旭哲; 杨蕾; 尹燕升; 张驰
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-30
Anticipated expiration: 2042-05-11
Also published as: CN114962098B

Abstract

The invention belongs to the technical field of vehicles and discloses a water drainage device of a fuel filter and an automobile. The device comprises a valve body, a cavity arranged in the valve body and a water outlet hole arranged at the bottom of the valve body; the communicating part is arranged in the cavity and divides the cavity into a first cavity far away from the water outlet hole and a second cavity close to the water outlet hole; the communicating part is provided with a communicating hole and a piston hole, and the first chamber is communicated with the second chamber through the communicating hole; a piston is arranged in the piston hole in a sliding manner, one end of the piston, which is close to the second cavity, is connected with a floating ball, and the floating ball can seal or open the water outlet hole. According to the invention, the water discharge of the fuel filter is conveniently realized without arranging electric control components such as a sensor and a controller; the structure of the device is simplified, and the integral structure of the water discharging device is more compact.

Description

Water discharging device of fuel filter and automobile

Technical Field

The invention relates to the technical field of vehicles, in particular to a water drainage device of a fuel filter and an automobile.

Background

In order to protect precise parts of a fuel system such as a high-pressure oil pump, an oil sprayer and the like on an automobile engine, a fuel filter is arranged on the engine or the whole automobile and is used for filtering impurities and moisture in fuel. At present, various oil products are produced in China, the quality is different, and in order to reduce the transportation cost, a user can select to fill fuel oil of a small gas station, namely the oil product is poor, and the water content is high. The fuel filter filters the water in the fuel and then collects the water in the water collecting cup at the bottom of the filter. The more the filtered water volume is accumulated, the regular water discharging operation is needed by a user, otherwise, the filtering effect of the filter is influenced, and the risk of water freezing and frost cracking also exists in the filter water accumulation cup in winter.

A water level alarm is arranged at the bottom of a coarse filter in the current market, when accumulated water reaches a set position, an alarm is given to remind a user of discharging water, and the coarse filter has more parts and a complex structure; some water level alarms do not exist, and users need to regularly operate water drainage according to experience.

An automatic water discharging device of a fuel filter, an automatic water discharging method and a vehicle are disclosed in the prior art, see CN105927433B, wherein the automatic water discharging device includes an electrically controlled water valve, a water level sensor and a controller. The electric control water valve is arranged on the fuel filter and used for discharging accumulated water in the fuel filter; the water level sensor is arranged on the fuel filter and used for detecting the water level of accumulated water in the fuel filter; the controller is electrically connected with the water level sensor and the electric control water valve and is used for receiving a water level signal of the water level sensor and controlling the opening and closing of the electric control water valve according to the water level signal. The problem that the fuel filter can not automatically drain in the prior art is solved.

The prior art also discloses a fuel filter with an automatic water discharging function and an automatic water discharging method using the fuel filter for water discharging, see CN109209707A, wherein the fuel filter comprises a fuel filter body and a water cup, the water cup comprises an oil-water separation cavity and a water storage cavity which are separated by a partition plate, an electromagnetic valve is arranged at the bottom of the partition plate, a first water opening and a second water opening are respectively arranged on two sides of the electromagnetic valve, a liquid level sensor is arranged in the oil-water separation cavity, a water discharging pipe is arranged in the water storage cavity, and the position of a water inlet of the water discharging pipe in the vertical direction is arranged above the second water opening of the electromagnetic valve. Through the fuel filter with the automatic water discharging function and the automatic water discharging method, accumulated water in a water cup can be automatically discharged, harm to an engine caused by forgetting manual water discharging by an operator is reduced, air is effectively prevented from entering the filter in the exhaust process, and normal starting and running of the engine are guaranteed.

The liquid level sensor, the electronic control water drain valve and the controller are installed in the structure, when the water level is detected to a set position, the controller controls the electronic control water drain valve to drain water, the automatic water drain requirement can be met, electronic parts are more, electronic control is relied on, the number of parts is more, and the structure is complex.

Disclosure of Invention

The invention aims to provide a water discharging device of a fuel filter, which does not need to be provided with electric control components such as a sensor and a controller and the like, and realizes water discharging of the fuel filter; the structure of the device is simplified, and the structure of the water discharging device is more compact.

In order to achieve the purpose, the invention adopts the following technical scheme:

a water discharging device of a fuel filter comprises

The valve comprises a valve body and a cavity arranged in the valve body;

the water outlet is formed in the bottom of the valve body;

the communicating part is arranged in the cavity and divides the cavity into a first cavity far away from the water outlet hole and a second cavity close to the water outlet hole;

the communicating part is provided with a communicating hole and a piston hole, and the first chamber is communicated with the second chamber through the communicating hole; a piston is arranged in the piston hole in a sliding mode, one end, close to the second cavity, of the piston is connected with a floating ball, and the floating ball can seal or open the water outlet hole.

As a preferable scheme of the water discharging device of the fuel filter, the density of the floating ball is larger than that of gasoline and smaller than that of water.

As an optimal scheme of the water discharging device of the fuel filter, one end, close to the water outlet hole, of the second cavity is provided with a liquid accumulation cavity, the liquid accumulation cavity extends towards the inside of the second cavity along the water outlet hole, and the cross-sectional area of the liquid accumulation cavity is gradually increased.

As a preferable scheme of the water discharging device of the fuel filter, the piston is connected with the floating ball through a piston rod.

As a preferred scheme of the water discharging device of the fuel filter, the piston rod and the floating ball are integrally formed.

As a preferred scheme of the water discharging device of the fuel filter, the outer wall of the valve body is provided with threads for connecting the fuel filter.

As a preferred scheme of the water discharging device of the fuel filter, an annular groove is formed in the outer wall of the valve body, and a sealing ring is arranged in the annular groove.

As a preferable mode of the water discharging device of the fuel filter, a plurality of the communication holes are arranged along the circumferential direction of the communication part.

As a preferable scheme of the water discharging device of the fuel filter, a filter assembly is arranged in the first chamber.

An automobile comprises the water discharging device of the fuel filter in any scheme.

Has the advantages that:

in the present invention, the communicating portion divides the cavity into a first chamber and a second chamber, the communicating portion is provided with a communicating hole through which the first chamber and the second chamber are communicated, the first chamber temporarily stores a mixture of water and gasoline generated by the fuel filter, and the mixture enters the second chamber through the communicating hole. A water outlet is formed in the bottom of the valve body, and water flows out through the water outlet; the communicating part is also provided with a piston hole, a piston is arranged in the piston hole in a sliding manner, one end of the piston is connected with a floating ball, the water outlet hole can be closed or opened through the floating ball, and the water outlet hole is controlled to be opened and closed through the floating ball. By utilizing the device, the arrangement of electric control components such as a sensor and a controller can be avoided, and the water drainage of the fuel filter can be realized; the structure of the device is simplified, and the structure of the water discharging device is more compact.

Drawings

FIG. 1 is a cross-sectional view of a water discharge device of a fuel filter according to an embodiment of the present invention;

FIG. 2 is an isometric view of a water discharge device of a fuel filter provided in an embodiment of the invention.

In the figure:

100. a valve body; 110. a cavity; 111. a first chamber; 112. a second chamber; 1121. a liquid accumulation cavity; 120. a water outlet hole; 130. a communicating part; 131. a communicating hole; 132. a piston bore; 140. a piston; 141. a floating ball; 142. a piston rod; 150. a thread; 160. an annular groove; 200. a seal ring; 300. a filter assembly.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Referring to fig. 1 and fig. 2, in this embodiment, the water discharging device of the fuel filter includes a valve body 100 and a cavity 110 in the valve body 100; the water outlet hole 120 is formed at the bottom of the valve body 100; the communicating part 130 is disposed in the cavity 110 and divides the cavity 110 into a first chamber 111 far away from the water outlet hole 120 and a second chamber 112 near the water outlet hole 120; the communicating portion 130 is provided with a communicating hole 131 and a piston hole 132, and the first chamber 111 and the second chamber 112 are communicated through the communicating hole 131; a piston 140 is slidably disposed in the piston hole 132, and a floating ball 141 is connected to an end of the piston 140 close to the second lower chamber 112, and the floating ball 141 can close or open the water outlet hole 120. When the vehicle starts, the fuel filter can generate a certain mixed liquid of gasoline and water to enter the water discharging device, firstly, the mixed liquid enters the first chamber 111 for temporary storage, enters the second chamber 112 through the communicating hole 131, the bottom of the second chamber 112 is provided with the water outlet hole 120, after the mixed liquid in the second chamber is accumulated continuously, the buoyancy force borne by the floating ball 141 is gradually increased, and the buoyancy force is increased to be larger than or equal to the gravity of the floating ball 141. The floating ball 141 rises along the liquid level of the mixed liquid, at this time, the water outlet hole 120 is opened because of no blocking of the floating ball 141, and the mixed liquid is discharged out of the valve body 100 through the water outlet hole 120; along with the continuous discharge of mixed liquid, the buoyancy that floater 141 received reduces gradually, and floater 141 whereabouts, along with the inside mixed liquid of cavity 110 constantly reduces, floater 141 finally can shutoff apopore 121, keeps apart cavity 110 and exterior space. In addition, the communication portion 130 is further provided with a piston hole 132, the piston 140 is slidably disposed in the piston hole 132, and the float balls 141 are connected to the piston 140, so that the float ball 141 moves up and down in the direction of the piston 140 during the up and down movement, and does not deviate.

In this embodiment, the density of the float ball 141 is greater than gasoline and less than water. When the automobile is started, the fuel filter starts to work, most of the mixed liquid entering the cavity 110 is gasoline, and the density of the floating ball 141 is greater than that of the gasoline, so that the floating ball 141 cannot float upwards all the time due to the increase of the mixed liquid, the floating ball 141 is always blocked on the water outlet hole 121, and the water outlet hole 121 is always closed; along with the vehicle is gone gradually, the composition of the mixed liquid normal water in the cavity 110 is constantly increasing, and the density of mixed liquid is also constantly increasing, also constantly approaches to the density of water, and when the density of mixed liquid was greater than the density of floater 141, floater 141 floated, and apopore 121 opened this moment, released the mixed liquid. Along with the mixed liquid is constantly released, the mixed liquid in the cavity 110 is gradually reduced, the floating ball 141 gradually falls down and finally blocks the water outlet hole 121, further, along with the continuous running of the vehicle, the floating ball 141 periodically moves up and down to enable the water outlet hole 121 to be periodically closed and opened, the automatic water discharging function of the device is realized, the existing scheme that a sensor is used for identifying the water level is avoided, the controller is used for controlling the water outlet, and the structure of the whole device tends to be simplified.

Alternatively, in the present embodiment, the floating ball 141 is a hollow structure, and those skilled in the art can understand that the density relationship between the floating ball 141 and the gasoline and the water can be effectively adjusted by adjusting the volume of the hollow structure.

Referring to fig. 1, a liquid accumulation cavity 1121 is disposed at an end of the second chamber 112 close to the water outlet hole 120, the liquid accumulation cavity 1121 extends toward the inside of the second chamber 112 along the water outlet hole 120, and the cross-sectional area of the liquid accumulation cavity 1121 is gradually increased.

Optionally, the piston 140 is connected to the float 141 by a piston rod 142. The height change of the hydrops 1121 can be adapted by changing the length of the piston rod 142, so that the adaptability of the device is improved, namely when the height of the hydrops 1121 changes, the height of the piston 140 or the volume of the floating ball 141 does not need to be adjusted, only the length of the piston rod 142 needs to be adjusted, and the device is simple to adjust and high in adaptability.

Optionally, the piston 140, the piston rod 142 and the float 141 are integrally formed. After the structure of the whole device is determined, the piston 140, the piston rod 142 and the floating ball 141 can be adjusted to be integrally formed, the number of matched parts is reduced, and the assembly efficiency of the device is improved.

Referring further to fig. 1 and 2, in this embodiment, the outer wall of the valve body 100 is provided with threads 150 for connecting with a fuel filter, the outer wall of the valve body 100 is provided with an annular groove 160, and a sealing ring 200 is disposed in the annular groove 160. By arranging the sealing ring 200 at the front end of the threaded connection, the mixed liquid generated by the fuel filter completely flows into the cavity 110 of the device, and liquid leakage is avoided.

Alternatively, several communication holes 131 are arranged along the circumferential direction of the communication part 130, specifically, in the present embodiment, the communication holes 131 are uniformly arranged along the circumferential direction of the communication part 130, so that the mixed liquid entering the first cavity 111 can uniformly enter the second cavity 112, and thus stably flows into the droppings cavity 1121.

Preferably, in this embodiment, a filter assembly 300 is disposed in the first chamber 111, and the filter assembly 300 is disposed between the fuel filter and the first chamber 111 to filter impurities, so as to ensure the cleanness of the cavity 110 and avoid plugging the water outlet hole 121 along with the long service life of the device.

In the embodiment, the invention also relates to an automobile, and the water discharging device of the fuel filter is installed.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A water discharging device of a fuel filter is characterized by comprising

The valve comprises a valve body (100) and a cavity (110) arranged in the valve body (100);

the water outlet hole (120) is formed in the bottom of the valve body (100);

a communicating portion (130) provided in the cavity (110) and dividing the cavity (110) into a first chamber (111) distant from the water outlet hole (120) and a second chamber (112) close to the water outlet hole (120);

a communication hole (131) and a piston hole (132) are formed in the communication part (130), and the first chamber (111) and the second chamber (112) are communicated through the communication hole (131); a piston (140) is slidably arranged in the piston hole (132), a floating ball (141) is connected to one end of the piston (140) close to the second chamber (112), and the floating ball (141) can close or open the water outlet hole (120).

2. The water discharge device of the fuel filter according to claim 1, wherein the density of the floating ball (141) is greater than gasoline and less than water.

3. The water discharging device of the fuel filter according to claim 2, wherein an end of the second chamber (112) close to the water outlet hole (120) is provided with a liquid accumulation cavity (1121), the liquid accumulation cavity (1121) extends towards the inside of the second chamber (112) along the water outlet hole (120), and the cross-sectional area of the liquid accumulation cavity (1121) is gradually increased.

4. The water discharge device of a fuel filter according to claim 1, characterized in that the piston (140) is connected to the float ball (141) via a piston rod (142).

5. The water discharging device of the fuel filter according to claim 4, wherein the piston (140), the piston rod (142) and the floating ball (141) are integrally formed.

6. The water discharging device of the fuel filter according to claim 1, wherein the outer wall of the valve body (100) is provided with a thread (150) for connecting the fuel filter.

7. The water discharging device of the fuel filter according to claim 6, wherein an annular groove (160) is formed on the outer wall of the valve body (100), and a sealing ring (200) is arranged in the annular groove (160).

8. The water discharge device of a fuel filter according to claim 1, wherein a plurality of the communication holes (131) are arranged in a circumferential direction of the communication portion (130).

9. The water discharge device of a fuel filter according to claim 1, characterized in that a filter assembly (300) is arranged in the first chamber (111).

10. An automobile comprising the water discharging device of the fuel filter according to any one of claims 1 to 9.