CN104373631A - Linear control four-channel rotating switching valve for automobile oiling - Google Patents

Abstract

The invention discloses a wire-controlled four-channel rotary switching valve for automobile refueling, which comprises an oil inlet system, a wire-controlled diversion control system, a rotary switching valve and an oil outlet pipe. The oil inlet system includes a refueling port and a refueling pipe; the wire-controlled diversion control system controls the control line fixed on the rotating spool through the joint action of the valve core rotation and the return spring, so as to realize the diversion control function of the baffle; A drainage hole is provided inside the rotating valve core, and a layer of oil leakage-proof sealing sleeve is coated on the outside, and a connecting rod and a handle are connected to the outer end; two oil outlet pipes are connected to the bottom of each fixed valve casing. The invention is aimed at a car with four fuel tanks, which controls the switching between the fuel tanks during the refueling process and prevents the oil and gas between the fuel tanks from volatilizing and polluting each other.

Description

A wire-controlled four-channel rotary switching valve for automobile refueling

technical field

The invention relates to the technical field of refueling diversion control for automobiles with multiple fuel tanks, in particular to a wire-controlled four-channel rotary switching diversion valve device for refueling.

Background technique

With the rapid development of the automobile industry and the increase of people's awareness of environmental protection, problems such as shortage of oil resources and automobile pollution have become increasingly prominent. Traditional cars are mostly equipped with only a single fuel tank, which means that only one type of fuel can be used regardless of the working conditions. Under abnormal working conditions, to a certain extent, it will aggravate the emission of automobile pollution and the decline of fuel utilization rate, resulting in a waste of resources. According to domestic and foreign researches, gasoline has good volatility, high octane number, strong anti-knock ability, but poor natural ignition performance; diesel oil has high cetane number, good ignition performance, but poor volatility. Using gasoline and diesel at the same time may combine the advantages of the two to achieve the dual effects of reducing fuel consumption and reducing pollution emissions. Petroleum is not renewable, leading to more and more research on alternative fuels such as methanol, dimethyl ether, biodiesel, and F-T diesel. Therefore, it has a certain application prospect to configure multiple fuel tanks on the same vehicle to add a variety of different types or different grades of fuel for multi-fuel combustion or to select different fuels for combustion according to different working conditions. But few people study about the refueling switching control device of multi-fuel tank vehicle. U.S. Patent No. 4852892 discloses a refueling device for two fuel tanks, which has only one refueling port; below the refueling port is a Y-shaped three-way joint, which communicates with the two fuel tanks respectively. come on. This device is only applicable to the situation where the same quality fuel is added to two fuel tanks. If different fuel is added, oil vapor or oil splashes are likely to cause mutual contamination through the filling pipe or exhaust pipe, affecting the quality of the fuel. Patent ZL201420232319.2 discloses a multi-channel rotary switching valve for automobile refueling, which has a large number of holes on the valve core, reduced strength, and is difficult to manufacture.

Contents of the invention

The object of the present invention is to provide a wire-controlled four-channel rotary switching valve for automobile refueling. For a car with four fuel tanks, a refueling switching device is arranged below the fuel filler, and the fuel filler can be switched to different fuel tanks according to needs. Fuel filling of different fuel tanks; after the fuel filling is completed, closing the ports of each fuel tank can solve the technical problem of mutual pollution caused by volatilization of oil and gas between various fuel tanks.

In order to realize the foregoing invention object, the technical scheme that the present invention intends to adopt is as follows:

A wire-controlled four-channel rotary switching valve for automobile refueling, including an oil inlet system, a wire-controlled diversion control system, a rotary switching valve, and an oil outlet;

The oil inlet system includes an oil inlet and an oil inlet pipe, both of which are connected, and the oil inlet pipe is located below the oil inlet; the lower end of the oil inlet pipe is connected to the inlet end of the herringbone diversion channel of the wire-controlled diversion control system;

The wire-controlled shunt control system includes a baffle, a pulley, a return spring and a control line; the baffle includes a left baffle and a right baffle, which are respectively located on the side walls of the left channel and the right channel of the herringbone shunt channel, and one end passes through the The rotation point is fixed on the side wall, and the middle part or the other end of the baffle is also connected to the side wall through a return spring; one end of the control line is connected to the non-rotation point end of the baffle, and the other end passes through the fixing hole of the rotary switching valve through a roller slip , fixed on the rotary switching spool;

The rotary switching valve has two rotary valves, left and right, and each rotary switching valve includes a fixed valve casing and a rotary valve core; the fixed valve casing is provided with an oil inlet communicating with the diverting hole and two oil outlet, and the three oil outlets are located on the same section; the oil outlet is located in the lower half of the section and is respectively connected with two oil outlet pipes; each of the oil outlet pipes communicates with an oil tank; the rotary valve The core is located in the fixed valve body and is connected with the rotating handle through the connecting rod; a drainage channel is arranged in the rotary valve core; through rotation, the two ports of the drainage channel can be respectively connected with the oil inlet and two outlets of the rotary switching valve. The oil pipe is selectively connected; there is a layer of oil leakage-proof sealing sleeve between the rotating valve core and the fixed housing.

The two baffles are rectangular, and the left channel and the right channel are also rectangular cavities of the same size in the space section where they are located, and the edge of the baffle is provided with an anti-leakage oil seal; when the baffle is opened, it is located On the side wall, the lower end of the baffle is in contact with the bottom plane of the cavity when it is opened.

The invention has the advantages of controlling the switching between each fuel tank during the refueling process for a car carrying four fuel tanks, and has the advantages of simple operation, small volume, smooth refueling and the like. The details are as follows: 1. The drainage hole has a certain radian, which is good for the fuel to flow down, reducing the resistance of the drainage hole to the fuel; 2. One drainage hole can complete the refueling of two fuel tanks, reducing the number of drainage holes and enhancing the strength of the valve core. It is convenient for valve core manufacturing and processing; 3. The radian and length of the drainage hole can be properly adjusted according to the relative positions of the oil inlet and the oil outlet; 4. Rotating the valve core can block the oil outlet, reducing oil volatilization and mutual pollution between oil tanks ;

Description of drawings

Figure 1 is a schematic diagram of refueling a car equipped with a wire-controlled four-channel rotary switching valve;

Fig. 2 is a structural schematic diagram of a wire-controlled four-channel rotary switching valve;

Fig. 3 is the enlarged schematic view of the endpoint of the control line in Fig. 2;

Fig. 4 is the left view of Fig. 2;

Figure 5 is a schematic diagram of the separation of the rotary valve housing and spool;

Figures 6-1, 6-2, 6-3, and 6-4 are schematic diagrams of the rotation switching among the drainage channels.

The symbols in the accompanying drawings represent as follows: 1. Oil inlet; 2. Oil inlet pipe; 3. Rotary switching valve; 4. Control valve body; 5. Baffle; 6. Rotation point; Line; 9, miniature pulley; 10, shunt channel; 11, control line endpoint; 12, drainage channel; 13, fixed valve casing; 14, sealing sleeve; 15, rotating valve core; 16, connecting rod; 17, handle; 18 1, oil outlet pipe one; 19, oil outlet pipe two; 20, oil outlet pipe three; 21, oil outlet pipe four; 22, control line fixing hole; 23, fuel tank one; 24, fuel tank two; 25, fuel tank three; 26 fuel tank four.

Detailed ways

The specific structure and working principle of the present invention are shown in Fig. 1 to Fig. 6-4. The wire-controlled four-channel rotary switching valve for automobile refueling includes an oil inlet system, a wire-controlled diversion control system, a rotary valve and an oil outlet.

The oil inlet system includes an oil inlet 1 and an oil inlet pipe 2, the two are connected, and the oil inlet pipe 2 is located below the oil inlet 1; the lower end of the oil inlet pipe 2 is connected to the inlet end of the herringbone shunt channel of the wire-controlled shunt control system ;

The wire-controlled shunt control system includes a baffle 5 , a control wire 8 , a pulley 9 , and a return spring 7 . The baffle plate 5 includes a left baffle plate and a right baffle plate, which are respectively located on the side walls of the left channel and the right channel of the herringbone shunt channel, and one end is fixed on the side wall by the rotation point 6, and the middle part or the other end of the baffle plate 5 is also passed through The return spring 7 is connected to the side wall; one end of the control line 8 is connected to the non-rotating point end of the baffle plate 5, and the other end is fixed on the rotary valve core 15 through the miniature roller skate 9 and through the fixing hole 22 of the rotary valve.

The control valve body 4 is composed of a herringbone shunt channel, a baffle plate 5, a control line 8, a pulley 9 and a return spring 7.

The rotary switching valve 3 is composed of left and right two, and each rotary switching valve 3 includes a fixed valve casing 13 and a rotary valve core 15; the fixed valve casing 13 is provided with an oil inlet port communicating with the split passage. and two oil outlets, and these three oil outlets are located on the same section; the oil outlets are located in the lower half of the section, and are respectively connected to two oil outlet pipes 18, 19, or 20, 21; each of the A fuel outlet pipe 19, 20, 21, 22 communicates with a fuel tank 23, 2, 4, 25, 26; the rotary switching spool 15 is located in the fixed valve housing 13, and is connected with the rotary handle 17 through the connecting rod 16; A drainage hole 12 is arranged inside the rotary valve core 15; through rotation, the two ports of the drainage hole 12 can be selectively communicated with the oil inlet of the rotary valve and the two oil outlet pipes respectively; the rotary valve core 15 is connected to the fixed valve housing One deck oil leakage sealing sleeve 14 is arranged in the middle of 13.

The baffle plate 5 is located in a correspondingly shaped groove on the side wall, and its open position is that the lower end of the baffle plate abuts against the bottom surface of the cavity.

Before refueling, the wire-controlled four-channel rotary switching valve is in the closed state, and the positions of the two rotary spools 15 are shown in Figure 2. 19, 20, 21 are separated by the rotary spool 15. Therefore, the four-channel rotary reversing valve is in the closed state at this time, and the oil tanks will not pollute each other through volatilization of oil and gas.

When needing to fuel tank one 23 (as shown in accompanying drawing 1, Fig. 6-1, 6-2, 6-3, 6-4), rotate the spool 15 to the left, this moment be fixed on the spool 15 on the rotary The left side control wire 8 rotates together, produces pulling force to the right side baffle plate 5. When one end of the drainage channel 12 is aligned with the upper port of the oil outlet pipe 18, and the other end is aligned with the lower port of the left side diversion channel 10, the baffle plate just falls, blocking the right side diversion channel, and now the diversion channel 10 passes through the drainage channel 12 It communicates with oil outlet pipe one 18 (as shown in Figure 6-1). As shown in Figure 1, the refueling gun extends into the refueling port 1, and the fuel is sprayed out after the trigger is pulled, and then flows into the refueling pipe 2, the diversion channel 10, the drainage channel 12, and the fuel outlet pipe 18 to realize refueling of the fuel tank 1 23. After completing the refueling, turn the handle 17 to the right, and the drainage channel 12 returns to its original state. At this moment, the right side baffle is close to the side wall under the pulling force of the back-moving spring and returns to the original state.

When fuel tank 2 24 (as shown in accompanying drawing 1, Fig. 6-1, 6-2, 6-3, 6-4) needs to be refueled, the spool 15 is rotated to the right, and the spool 15 fixed on the spool 15 is The left side control wire 8 rotates together, produces pulling force to the right side baffle plate 5. When one end of the drainage channel 12 is aligned with the upper port of the oil outlet pipe 2 19, and the other end is aligned with the lower port of the left side diversion channel 10, the baffle plate just falls, blocking the right side diversion channel, and now the diversion channel 10 passes through the drainage channel 12 It is connected with the fuel outlet pipe 2 19 (as shown in Figure 6-2. As shown in Figure 1, the fuel gun extends into the fuel filler port 1, and the fuel is sprayed out after the trigger is pulled, and then flows into the fuel oil pipe 2, the diversion hole 10, the drainage hole 12, The fuel outlet pipe 2 19 realizes refueling of the fuel tank 2 24. After refueling, turn the handle 17 to the left, and the drainage hole 12 returns to its original state. At this time, the right side baffle is close to the side wall under the tension of the return spring and is restored to its original state. undisturbed.

By rotating the right side rotary spool, fuel tank three 25 and tank four 26 can be refueled, which is similar to the fuel tanks described above and will not be described in detail.

Finally, it should be noted that: the above-mentioned implementation examples are only used to illustrate the use of the device, and are not intended to limit the technical solution of the present invention. Any equivalent replacements or corresponding improvements made to the technical features of the present invention shall be covered by this document. within the scope of protection of the invention.

Claims (2)

1. the wire controlled four-way rotating transfer valve of automobile fuel filler, is characterized in that: comprise oil feeding system, line traffic control diverter control system, rotating transfer valve and oil outlet;

Described oil feeding system comprises filler opening and oil inlet pipe, and the two is connected, and oil inlet pipe is positioned at the below of oil filler; Described oil inlet pipe lower end connects the entry end in the man type shunting duct of line traffic control diverter control system;

Described line traffic control diverter control system comprises baffle plate, pulley, Returnning spring and guide line; Described baffle plate comprises right baffle-plate and right baffle plate, and lay respectively on the sidewall of man type shunting duct left passage, right passage, one end is fixed on sidewall by turning point, in the middle part of baffle plate or the other end be also connected with sidewall by Returnning spring; Described guide line one end is connected to the non-rotating end of baffle plate, and the other end, by skidding, through the fixed hole of rotating transfer valve, is fixed on rotating transfer valve core;

Described rotating transfer valve has left and right two, and each rotating transfer valve comprises fixing valve casing and rotary spool; Described fixing valve casing has one with the filler opening of described shunting hole link and two oil outlets, and these three hydraulic fluid ports are positioned on same cross section; Described oil outlet is positioned at the Lower Half in cross section, is connected respectively with two oil outlet tubes; Described each oil outlet tube is communicated with a fuel tank; Described rotary spool is positioned at fixed valve body, is connected with rotating handles by connecting rod; A drainage duct is provided with in described rotary spool; By rotating, two, described drainage duct port can be selected to be communicated with two oil outlet tubes with the filler opening of rotating transfer valve respectively; One deck oil-leakage-prevention stuffing box gland is had in the middle of described rotary spool and stationary housing.

2. the wire controlled four-way rotating transfer valve of a kind of automobile fuel filler according to claim 1, it is characterized in that: described two baffle plates are rectangle, described left passage, the aerial cross sectional of right passage at its place rectangular enclosure also in same size, described baffle edge is provided with leakproof oil sealing; Described baffle plate is positioned on sidewall when opening, and when opening, baffle plate lower end and cavity bottom plane offset.