CN114508448A - Double-fuel gas supply system with stepping motor - Google Patents

Abstract

The utility model provides a take step motor's two gas feed system, includes the body and sets up throttle valve on the body, still be provided with intake pipe and step motor on the body, intake pipe and LP gas or NG gas pipeline intercommunication, step motor with the throttle valve is connected and control the aperture of throttle valve, the choke department of throttle valve is provided with the choke and inlays the cover, be provided with on the choke inlays the cover and be used for control the blow vent of the output quantity of LP gas or NG gas, LP gas or NG gas pass through the blow vent that the cover was inlayed to the choke gets into in the two gas feed system. The invention can switch the double gas supply systems, realizes that one supply system directly switches LP gas and NG gas, and has convenient use, safety and reliability.

Description

A dual gas supply system with stepper motor

technical field

The invention relates to a gas supply system, in particular to a dual gas supply system with a stepping motor.

Background technique

For the engine using gas in the prior art, it is necessary to use two supply systems to switch between LP gas and NG gas, and the safety and convenience of use are greatly affected.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a dual gas supply system with a stepping motor in view of the above-mentioned defects of the prior art.

In order to achieve the above object, the present invention provides a dual gas supply system with a stepping motor, which includes a main body and a throttle valve arranged on the main body, and an air intake pipe and a stepping motor are also arranged on the main body, The intake pipe is communicated with the LP gas or NG gas pipeline, the stepper motor is connected with the throttle valve and controls the opening degree of the throttle valve, and a throat pipe insert is arranged at the throat pipe of the throttle valve, The throat bushing is provided with a vent for controlling the output of the LP gas or NG gas, and the LP gas or NG gas enters the dual gas supply system through the vent hole of the throat bushing.

The above-mentioned dual gas supply system with a stepping motor, wherein the main body is further provided with a gas control switch for switching between the LP gas or the NG gas, and the gas control switch is arranged between the intake pipe and the main body. of connection.

The above-mentioned dual gas supply system with a stepping motor, wherein the gas control switch includes a head and a switch body that are connected to each other, and the switch body is provided with a first opening, a second opening and a gas passage, and the first opening is provided on the switch body. An opening and a second opening are arranged opposite to each other, and the first opening and the second opening are respectively communicated with the gas passage.

The above-mentioned dual gas supply system with a stepping motor, wherein the switch body is a cylindrical structure, the gas passage is a circular hole arranged coaxially with the switch body, and the first opening and the second opening are The centerline is perpendicular to the axis of the gas passage.

In the above-mentioned dual gas supply system with a stepping motor, the center line of the first opening and the center line of the second opening are coincident, and the first opening is smaller than the second opening.

In the above-mentioned dual gas supply system with a stepping motor, the head is provided with a control boss, and the control boss is located in the middle of the head.

In the above-mentioned dual gas supply system with a stepping motor, wherein the ventilation openings of the throat sleeve are a plurality of uniformly distributed circular holes, polygonal holes or a plurality of transverse grooves.

The above-mentioned dual gas supply system with a stepping motor further includes an opening screw, and the opening screw is installed at the connection between the stepping motor and the throttle valve.

In the above-mentioned dual gas supply system with a stepping motor, the gas control switch is located at the top of the main body, and the air inlet of the air intake pipe is arranged on both sides of the main body opposite to the stepping motor, And the axis of the intake pipe is perpendicular to the axis of the gas control switch.

The above-mentioned dual gas supply system with a stepping motor, wherein the axis of the gas control switch is located between the axes of the two parallelly arranged throat inserts, and the axes of the throat inserts are perpendicular to the The axis of the gas control switch, and the axis of the throat insert is perpendicular to the axis of the intake pipe.

The technical effect of the present invention is:

The invention can switch dual gas supply systems, realizes that one supply system can directly switch LP gas and NG gas, is convenient to use, and is safe and reliable.

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

Description of drawings

1A is a schematic structural diagram of an embodiment of the present invention;

1B is a schematic structural diagram of FIG. 1A after removing the dust cover;

Fig. 2 is the sectional view of Fig. 1A;

3 is a cross-sectional view of FIG. 1A after the gas control switch is rotated clockwise;

4 is a schematic structural diagram of a gas control switch according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure in another direction of FIG. 4;

FIG. 6A is a schematic structural diagram of a throat tube insert according to an embodiment of the present invention;

FIG. 6B is a schematic structural diagram of a throat tube insert according to another embodiment of the present invention.

where the reference number

1 intake pipe

2 Gas control switch

3 Throat inserts

4 degree screw

5 Dust cover

6 first opening

7 Second opening

8 Air vents

9 Stepper Motor

10 Throttle

11 Ontology

Detailed ways

Below in conjunction with accompanying drawing, structure principle and working principle of the present invention are described in detail:

Referring to FIGS. 1A-3 , FIG. 1A is a schematic structural diagram of an embodiment of the present invention, FIG. 1B is a structural schematic diagram of FIG. 1A after removing the dust cover 5 , FIG. 2 is a cross-sectional view of FIG. 1A , and FIG. 3 is a clockwise view of FIG. 1A Cross-sectional view after turning the gas control switch 2. The dual gas supply system with stepping motor of the present invention includes a main body 11 and a throttle valve 10 arranged on the main body 11 , and an intake pipe 1 and a stepping motor 9 are also arranged on the main body 11 . A dust cover 5 is provided outside the motor 9, the intake pipe 1 is connected with the LP gas or NG gas pipeline, and the stepper motor 9 is connected with the throttle valve 10 and controls the opening of the throttle valve 10, which can be Through the rotation of the stepping motor 9, the opening degree of the throttle valve 10 is controlled. The throat pipe of the throttle valve 10 is provided with a throat pipe insert 3, and a throat pipe insert 3 is provided on the throat pipe insert 3 for controlling the LP gas. Or the ventilation port 8 for the output of NG gas, the LP gas or NG gas enters the dual gas supply system through the ventilation port 8 of the throat sleeve 3 . An opening screw 4 may also be included, and the opening screw 4 is installed at the connection between the stepping motor 9 and the throttle valve 10 .

可根据使用需求调整)、第二开口7(直径优选为

可根据使用需求调整)和燃气通路，所述第一开口6和第二开口7相对设置，且所述第一开口6和第二开口7分别与所述燃气通路连通。所述开关体优选为圆柱体结构，所述燃气通路为与所述开关体同轴设置的圆孔，所述第一开口6和第二开口7的中心线与所述燃气通路的轴线垂直。优选所述第一开口6的中心线和第二开口7的中心线重合，且所述第一开口6小于所述第二开口7。所述头部还可设置有控制凸台，所述控制凸台位于所述头部的中部。本实施例的所述燃气控制开关2位于所述本体11的顶端，所述进气管1的进气口与所述步进电机9相对设置于所述本体11的两侧，且所述进气管1的轴线与所述燃气控制开关2的轴线垂直。Referring to FIGS. 4 and 5 , FIG. 4 is a schematic structural diagram of a gas control switch 2 according to an embodiment of the present invention, and FIG. 5 is a structural schematic diagram of FIG. 4 in another direction. The main body 11 is also provided with a gas control switch 2 for switching between the LP gas or the NG gas, and the gas control switch 2 is arranged at the connection between the intake pipe 1 and the main body 11 . Wherein, the gas control switch 2 includes a head and a switch body that are connected to each other, and the switch body is provided with a first opening 6 (preferably a diameter of

can be adjusted according to the needs of use), the second opening 7 (the diameter is preferably

The first opening 6 and the second opening 7 are arranged opposite to each other, and the first opening 6 and the second opening 7 are respectively communicated with the gas passage. The switch body is preferably a cylindrical structure, the gas passage is a circular hole coaxially arranged with the switch body, and the centerlines of the first opening 6 and the second opening 7 are perpendicular to the axis of the gas passage. Preferably, the center line of the first opening 6 and the center line of the second opening 7 coincide, and the first opening 6 is smaller than the second opening 7 . The head may also be provided with a control boss, the control boss being located in the middle of the head. In this embodiment, the gas control switch 2 is located at the top of the main body 11 , the air inlet of the air intake pipe 1 is disposed on both sides of the main body 11 opposite to the stepping motor 9 , and the air intake pipe The axis of 1 is perpendicular to the axis of the gas control switch 2 .

Referring to FIGS. 6A and 6B , FIG. 6A is a schematic structural diagram of a throat insert 3 according to an embodiment of the present invention, and FIG. 6B is a structural schematic diagram of a throat insert 3 according to another embodiment of the present invention. The vent 8 of the throat insert 3 can be a plurality of uniformly distributed round holes, polygonal holes or a plurality of transverse grooves. The axis of the gas control switch 2 is located between the axes of the two throat inserts 3 arranged in parallel, the axis of the throat insert 3 is perpendicular to the axis of the gas control switch 2, and the throat The axis of the pipe insert 3 is perpendicular to the axis of the intake pipe 1 .

During operation, LP gas or NG gas can be connected to the intake pipe 1 according to the needs of the engine, and the LP gas or NG gas can pass through the gas control switch 2 (the first switch on the gas control switch 2 can be rotated according to the input LP gas or NG gas). After the opening 6 or the second opening 7 (the diameter of the first opening 6 or the second opening 7 is adjusted according to the needs of the engine) enters the supply system, it passes through the ventilation port 8 on the throat sleeve 3 (the throat can be selected according to the needs of the engine). Whether the vent 8 on the tube insert 3 is a horizontal slot or a round hole, the size of the horizontal slot or the round hole is adjusted according to the needs of the engine) to control the output. The flow path of the LP gas or NG gas in the main body 11 is shown by the arrows in Fig. 2 and Fig. 3 , wherein the adjustment of the opening screw 4 and the air intake hole can be adjusted according to the matched engine.

The present invention can switch between LP gas and NG gas by rotating the gas control switch 2 after the gas is input into the intake pipe 1 . After switching, the gas passes through the vent 8 on the throat sleeve 3, and the output of the gas can be controlled by the horizontal slot or the round hole. The size of the horizontal slot or the round hole can be adjusted according to the power demand of the engine to realize LP gas and NG gas. Ease of switching and control of gas output.

Of course, the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding Changes and deformations should belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. The utility model provides a take step motor's two gas feed system, its characterized in that, is in including body and setting throttle valve on the body, still be provided with intake pipe and step motor on the body, intake pipe and LP gas or NG gas pipeline intercommunication, step motor with the throttle valve is connected and control the aperture of throttle valve, the choke department of throttle valve is provided with the choke and inlays the cover, be provided with on the choke and be used for controlling the blow vent of the output quantity of LP gas or NG gas, LP gas or NG gas pass through the blow vent that the cover was inlayed to the choke gets into in the two gas feed system.

2. The dual gas supply system with stepper motor as claimed in claim 1, wherein the body is further provided with a gas control switch for switching the LP gas or NG gas, and the gas control switch is arranged at the communication position of the gas inlet pipe and the body.

3. The dual gas supply system with stepper motor as claimed in claim 2, wherein the gas control switch comprises a head and a switch body connected to each other, the switch body is provided with a first opening, a second opening and a gas passage, the first opening and the second opening are oppositely arranged, and the first opening and the second opening are respectively communicated with the gas passage.

4. The dual gas supply system with stepping motor according to claim 3, wherein said switch body is a cylindrical body, said gas passage is a circular hole coaxially disposed with said switch body, and the center lines of said first and second openings are perpendicular to the axis of said gas passage.

5. The dual gas supply system with stepper motor as defined in claim 4, wherein the centerline of the first opening and the centerline of the second opening coincide and the first opening is smaller than the second opening.

6. The dual gas supply system with stepper motors as claimed in claim 3, 4 or 5, wherein the head is provided with a control boss, the control boss being located at a middle portion of the head.

7. The dual gas supply system with stepper motor as claimed in claim 1, 2, 3, 4 or 5, wherein the air vent of the throat insert is a plurality of uniformly distributed round holes, polygonal holes or a plurality of transverse grooves.

8. The dual gas supply system with stepper motor as defined in claim 7, further comprising an opening screw installed at a connection of the stepper motor and the throttle valve.

9. The dual gas supply system with stepper motor as claimed in claim 2, 3, 4 or 5, wherein the gas control switch is located at the top end of the body, the gas inlet of the gas inlet pipe is arranged at two sides of the body opposite to the stepper motor, and the axis of the gas inlet pipe is perpendicular to the axis of the gas control switch.

10. The dual gas supply system with stepper motor of claim 9, wherein the axis of the gas control switch is located between the axes of two parallel throat inserts, the throat insert axis is perpendicular to the axis of the gas control switch, and the throat insert axis is perpendicular to the axis of the gas inlet pipe.

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