CN218325038U

CN218325038U - Multi-fuel electric injection throttle valve

Info

Publication number: CN218325038U
Application number: CN202222236643.9U
Authority: CN
Inventors: 梁世进
Original assignee: Huayi Electromechanical Co ltd
Current assignee: Huayi Electromechanical Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-17
Anticipated expiration: 2032-08-22

Abstract

A multi-fuel electronic injection throttle valve comprising: a body provided with a throttle hole; a lower cover arranged at the lower end of the body; the gas cavity is arranged in the body and is communicated with a gas source through an air inlet pipe arranged on the body; the gas injection pipe is arranged at the upper part of the throttle hole and is respectively communicated with the throttle hole and the gas chamber; the stepping motor is installed on the body and connected with the ECU, the stepping motor is matched with the gas injection pipe to control the gas flow, and the ECU controls the opening of the gas injection pipe through the stepping motor to control the gas flow; the pressure sensor is arranged on the body and connected with the ECU, the pressure sensor comprises a shell, and a pressure sensing chip and a pressure tapping pipe which are arranged in the shell, and the pressure tapping pipe is arranged below the pressure sensing chip; and the pressure tapping process hole is arranged on the body, one end of the pressure tapping process hole is communicated with the pressure tapping pipe, and the other end of the pressure tapping process hole is communicated with the air inlet pipe.

Description

Multi-fuel electric injection throttle valve

Technical Field

The utility model relates to an electricity spouts the air throttle, especially a many fuel electricity spouts the air throttle.

Background

In the multi-fuel electronic injection throttle valve in the prior art, a low-frequency stepping motor is adopted for controlling the gas flow, and in actual work, because the action frequency is not fast enough, when a large load is suddenly applied, the engine is easy to stall. Because a pressure sensor for collecting gas pressure is not provided with a condensed water discharge mode, the pressure instability phenomenon occurs in the guide device, condensed water is easily accumulated in the lower cover of the engine in extreme weather, and water is possibly accumulated in an ECU (electronic control unit) or other parts arranged in the lower cover to cause the normal work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the above-mentioned defect of prior art, provide a many fuel electricity spouts air throttle.

In order to achieve the above object, the present invention provides a multi-fuel electric injection throttle, wherein, comprising:

a body provided with a throttle valve hole;

the lower cover is arranged at the lower end of the body;

the gas cavity is arranged in the body and is communicated with a gas source through an air inlet pipe arranged on the body;

the gas injection pipe is arranged at the upper part of the throttle valve hole and is respectively communicated with the throttle valve hole and the gas cavity;

the stepping motor is arranged on the body and connected with the ECU, the stepping motor is matched with the gas injection pipe to control the gas flow, and the ECU controls the opening of the gas injection pipe through the stepping motor to control the gas flow;

the pressure sensor is arranged on the body and connected with the ECU, the pressure sensor comprises a shell, and a pressure sensing chip and a pressure tapping pipe which are arranged in the shell, and the pressure tapping pipe is arranged below the pressure sensing chip; and

and the pressure-taking technical hole is arranged on the body, one end of the pressure-taking technical hole is communicated with the pressure-taking pipe, and the other end of the pressure-taking technical hole is communicated with the air inlet pipe.

In the multi-fuel electric injection throttle valve, a drain hole is formed in the bottom of the lower cover, and a dustproof filter element is mounted on the drain hole.

The multi-fuel electric injection throttle valve is characterized in that the air inlet pipe is arranged on one side of the body, one end of the air inlet pipe is connected with the gas electromagnetic valve, the gas electromagnetic valve is connected with the ECU, the ECU controls the opening and closing of gas through the gas electromagnetic valve, and the other end of the air inlet pipe is communicated with the gas cavity.

The multi-fuel electric injection throttle valve is characterized in that the pressure sensing chip is sealed with the shell through a first sealing ring, or sealed with the shell through glue pouring.

The multi-fuel electric injection throttle valve is characterized in that the outer shell is sealed with the body through a second sealing ring.

The multi-fuel electronic injection throttle valve further comprises a balance pipe, wherein the balance pipe is arranged at the upper end of the pressure sensing chip and is communicated with the external atmosphere through a balance hole.

The multi-fuel electronic injection throttle valve is characterized in that the balancing hole is lower than the balancing pipe.

The multi-fuel electronic injection throttle valve is characterized in that the running frequency of the stepping motor is more than or equal to 400PPS.

The multi-fuel electric injection throttle valve is characterized in that a plug is arranged on the pressure tapping process hole in a pressing mode.

In the multi-fuel electric injection throttle valve, the stepping motor is matched with the air injection pipe through a conical head arranged at the front end of a motor shaft, and the conical head has a closed position and a plurality of working positions relative to the air injection pipe respectively.

The utility model has the beneficial effects that:

the utility model provides an engine low pressure gas electrical system's application problem, can realize the application of many fuels on general gasoline engine, make many fuels electrical system move more high-efficient and stable. The step motor with higher frequency is adopted, the requirement of sudden acceleration of the engine can be met through experiments, and the problem that condensed water is not easy to discharge is solved through the structures of the pressure sensor and the lower cover.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

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

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a top view of FIG. 1;

FIG. 6 is a partial cross-sectional view B-B of FIG. 2;

FIG. 7 is a partial sectional view C-C of FIG. 5;

FIG. 8 is a partial sectional view taken along line D-D of FIG. 4;

fig. 9 isbase:Sub>A partial sectional viewbase:Sub>A-base:Sub>A of fig. 4.

Wherein the reference numerals

1 main body

2 pressure sensor

21 outer cover

22 pressure sensing chip

23 pressure tapping pipe

24 balance tube

25 balance hole

3 step motor

31 conical head

4 lower cover

41 drainage hole

42 dustproof filter element

5 air inlet pipe

6 pressure-taking process hole

7 plug

8 first seal ring

9 second seal ring

10 gas ejector

11 gas chamber 12 throttle hole

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

referring to fig. 1 to 5, fig. 1 is a front view of an embodiment of the present invention, fig. 2 is a right side view of fig. 1, fig. 3 is a left side view of fig. 1, fig. 4 is a rear view of fig. 1, and fig. 5 is a top view of fig. 1. The utility model discloses a many fuels electricity spouts air throttle, include: a body 1 provided with a throttle hole 12; a lower cover 4 disposed at a lower end of the body 1; the gas chamber 11 is arranged in the body 1 and is communicated with a gas source through an air inlet pipe 5 arranged on the body 1; the gas ejector pipe 10 is arranged at the upper part of the throttle valve hole 12, the gas ejector pipe 10 is pressed at the upper part of the throttle valve hole 12, and the gas ejector pipe 10 is respectively communicated with the throttle valve hole 12 and the gas chamber 11; the stepping motor 3 is installed on the body 1 and connected with an ECU (electronic control unit), the ECU can be built in the body 1, such as in the lower cover 4, and can also be integrated and shared with the ECU of an engine, the stepping motor 3 is matched with the gas injection pipe 10 to control the gas flow, and the ECU controls the opening of the gas injection pipe 10 through the stepping motor 3 to control the gas flow; the pressure sensor 2 is installed on the body 1 and connected with the ECU, the pressure sensor 2 comprises a shell 21, and a pressure sensing chip 22 and a pressure tapping pipe 23 which are installed in the shell 21, and the pressure tapping pipe 23 is arranged below the pressure sensing chip 22; and the pressure-taking technical hole 6 is arranged on the body 1, one end of the pressure-taking technical hole 6 is communicated with the pressure-taking pipe 23, and the other end of the pressure-taking technical hole 6 is communicated with the air inlet pipe 5. And a plug 7 is pressed on the pressure taking technical hole 6.

In this embodiment, the intake pipe 5 is press-fitted to the side of the body 1, one end of the intake pipe 5 is connected to the gas solenoid valve through a hose, the other end of the intake pipe 5 is connected to the gas chamber 11, the gas solenoid valve is used for controlling the opening and closing of gas, the gas solenoid valve is connected to the ECU, the ECU controls the on-off of gas through the gas solenoid valve, and the other end of the intake pipe 5 is communicated with the gas chamber 11. The gas electromagnetic valve can be installed on the body 1 and can also be independently arranged as an external control unit.

Referring to fig. 6 and 7, fig. 6 is a partial sectional view B-B of fig. 2, and fig. 7 is a partial sectional view C-C of fig. 5. The pressure sensing chip 22 is sealed with the housing 21 through the first sealing ring 8, or sealed with the housing 21 through potting. The housing 21 is sealed to the body 1 by a second seal 9. In this embodiment, the pressure sensor 2 further includes a balance tube 24, and the balance tube 24 is disposed at the upper end of the pressure sensing chip 22 and is communicated with the external atmosphere through a balance hole 25. The balancing hole 25 is provided on the pressure sensor 2, and the position of the balancing hole 25 should be lower than the position of the balancing pipe 24.

Referring to fig. 8, fig. 8 is a partial sectional view of fig. 4 taken along line D-D. The bottom of the lower cover 4 is provided with a drainage hole 41, and a dustproof filter element 42 is arranged on the drainage hole 41. When condensed water is accumulated in the lower cover 4, the water can be drained through the dustproof filter element 42 and the drain hole 41 to prevent too much water from being accumulated.

Referring to fig. 9, fig. 9 isbase:Sub>A partial sectional viewbase:Sub>A-base:Sub>A of fig. 4. The stepping motor 3 can be fixed on the body 1 through a screw, and is matched with the gas ejector 10 through a conical head 31 arranged at the front end of a motor shaft, namely, the conical degree of the conical head 31 is matched with the spray hole of the gas ejector 10, the conical head 31 is provided with a closed position and a plurality of working positions relative to the gas ejector 10, and the conical head 31 can be stopped at different working positions according to different gas flow requirements. One end of the stepping motor 3 is matched with the gas ejector pipe 10 and fixed on the body 1 through a screw, and preferably, the running frequency of the stepping motor 3 is more than or equal to 400PPS.

When the engine is in a power-on standby state, the gas electromagnetic valve is in a normally closed state, when the engine works, the built-in ECU reads the rotating speed of the engine, the ECU sends a signal to the gas electromagnetic valve to open, gas enters the gas inlet pipe 5, the ECU sends a signal to enable the stepping motor 3 to rotate according to preset calibration data, the conical head 31 is driven to move from a closed position to a working position, a certain opening degree is opened relative to the gas ejector pipe 10, the gas enters the throttle valve hole 12 through the gas ejector pipe 10, and the gas and air in the throttle valve hole 12 are mixed and sucked into the engine, so that the engine enters normal operation.

The pressure sensor 2 is connected with the air inlet pipe 5 through the pressure taking technical hole 6, and when the engine works, the ECU can automatically correct the gas flow by reading the gas pressure.

The utility model provides an engine low pressure gas electrical system's application problem, can realize the application of many fuels on general gasoline engine, make the operation of many fuels electrical system more high-efficient and stable. The stepping motor 3 with higher frequency can meet the requirement of sudden acceleration of the engine through experiments, and the structure of the pressure sensor 2 and the lower cover 4 solves the problem that condensed water is not easy to discharge.

Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it is intended that all such modifications and variations be considered within the spirit or scope of the present invention as defined by the appended claims.

Claims

1. A multi-fuel electronic injection throttle, comprising:

a body provided with a throttle valve hole;

the lower cover is arranged at the lower end of the body;

the gas injection pipe is arranged at the upper part of the throttle hole and is respectively communicated with the throttle hole and the gas chamber;

the stepping motor is mounted on the body and connected with the ECU, the stepping motor is matched with the gas ejector pipe to control the gas flow, and the ECU controls the opening of the gas ejector pipe through the stepping motor to control the gas flow;

2. A multi-fuel electronic injection throttle valve as recited in claim 1, characterized in that a drain hole is provided at the bottom of the lower cover, and a dustproof filter element is mounted on the drain hole.

3. A multi-fuel electric injection throttle valve as recited in claim 1 or 2, characterized in that the air inlet pipe is installed at one side of the body, one end of the air inlet pipe is connected with a gas solenoid valve, the gas solenoid valve is connected with the ECU, the ECU controls the opening and closing of the gas through the gas solenoid valve, and the other end of the air inlet pipe is communicated with the gas chamber.

4. A multi-fuel electronic injection throttle valve as set forth in claim 1 or 2, wherein the pressure sensing chip is sealed with the housing by a first sealing ring or by potting compound.

5. A multi-fuel electronic injection throttle as set forth in claim 4, wherein said housing is sealed to said body by a second sealing ring.

6. A multi-fuel electronic injection throttle valve as set forth in claim 1 or 2, wherein said pressure sensor further comprises a balancing pipe disposed at an upper end of said pressure sensing chip and communicating with the external atmosphere through a balancing hole.

7. A multi-fuel electrospray throttle valve according to claim 6, wherein said balancing hole is lower than the position of said balancing pipe.

8. A multi-fuel electronic injection throttle valve as claimed in claim 1 or 2, characterized in that the operating frequency of the stepper motor is greater than or equal to 400PPS.

9. A multi-fuel electronic injection throttle as recited in claim 1 or 2, characterized in that a plug is press-fitted on said pressure tapping process hole.

10. A multi-fuel electronic injection throttle as set forth in claim 1 or 2, characterized in that said stepping motor cooperates with said air nozzle by means of a conical head disposed at the front end of the motor shaft, said conical head having a closed position and a plurality of working positions with respect to said air nozzle, respectively.