Fuel hydrogen-doped engine air inlet device

Abstract

The utility model discloses a fuel hydrogen-doped engine air inlet device, and relates to the technical field of engines. The device comprises a box body, an adjusting plate is vertically arranged on the upper side in the box body, a partition plate is fixed to the position, corresponding to the inner wall of the box body, of the outer portion of the adjusting plate, a motor is arranged on the lower side in the box body, a screw is fixed to a power output shaft of the motor, and the outer portion of the screw is in threaded connection with a threaded sleeve. A double-layer pipe is arranged on the left side of the left side pipe, and a heating wire is arranged in the peripheral wall of the double-layer pipe. The height of the adjusting plate is adjusted through the motor to achieve the effect of adjusting the air inflow, hydrogen is preheated through heat generated by the heating wire, and the problems that according to an existing air inlet device, the air inflow of the hydrogen is inconvenient to adjust, the air inflow of the hydrogen cannot be selected according to needs, and the air inflow of the hydrogen cannot be adjusted are solved. And an existing gas inlet device is inconvenient to increase the gas inlet temperature of hydrogen, and the combustion effect during combustion is affected when the environment temperature is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of engines, in particular to an air intake device for a fuel-hydrogen blended engine. Background Art

[0002] A fuel-hydrogen blended engine is a technology that introduces hydrogen into a traditional internal combustion engine or other combustion engine to improve fuel efficiency, reduce emissions or improve performance. The application of this technology can include mixing hydrogen with traditional fuels or using it in a pure hydrogen fuel system. When supplying air to a fuel-hydrogen blended engine, an intake device is required.

[0003] A search revealed that the authorization announcement number CN214660555U, with the authorization announcement date of November 9, 2021, discloses a fuel-hydrogen-blended engine intake device. This utility model fuel-hydrogen-blended engine intake device includes an intake manifold and a hydrogen filling pipe; the hydrogen filling pipe is connected to the outlet of the intake manifold, and the hydrogen filled by the hydrogen filling pipe and the air entering the intake manifold are mixed at the outlet of the intake manifold and enter the engine intake duct together. A groove is formed in the wall of the intake manifold outlet; the groove cooperates with the engine cylinder head to form a closed passage; the hydrogen filling pipe is connected to the groove and is connected to the outlet of the intake manifold through the closed passage. The utility model provides an intake device for a fuel-hydrogen-blended engine that can effectively suppress pre-ignition and backfire. The device is simple, effective, and has high economic benefits and practicality. It adopts a separate intake method, in which hydrogen and air are separately intaked in parallel and mixed before entering the combustion chamber, which can reduce the amount of hydrogen-air mixture formed in the intake manifold and control engine backfire and pre-ignition.

[0004] The existing air intake device is not convenient for adjusting the hydrogen intake amount, and it is impossible to select the hydrogen intake amount according to demand. In addition, the existing air intake device is not convenient for increasing the hydrogen intake temperature, which affects the combustion effect when the ambient temperature is low. Therefore, we provide a fuel-hydrogen blended engine intake device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an intake device for a fuel-hydrogen blended engine, which adjusts the intake volume by adjusting the height of an adjustment plate through a motor, and preheats the hydrogen through the heat generated by a heating wire, thereby solving the problems that the existing intake device is not convenient for adjusting the hydrogen intake volume, the hydrogen intake volume cannot be selected according to demand, and the existing intake device is not convenient for increasing the hydrogen intake temperature, which affects the combustion effect when the ambient temperature is low.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is an air intake device for a fuel-hydrogen blending engine, comprising a box body, an adjustment plate vertically arranged on the upper side of the interior of the box body, a partition fixed on the exterior of the adjustment plate corresponding to the inner wall of the box body, a motor arranged on the lower side of the interior of the box body, a screw fixed on the power output shaft of the motor, and a screw sleeve threadedly connected to the exterior of the screw;

[0008] A left side tube is fixed to the left wall of the box body at the position where the adjustment plate is located, and a double-layer tube is arranged on the left side of the left side tube. A heating wire is arranged inside the outer peripheral wall of the double-layer tube. An end plate is fixed to the right end of the double-layer tube, and the end plate is fixedly connected to the left side tube.

[0009] The utility model is further configured such that a rubber sleeve is fixed to the outside of the adjustment plate, and the rubber sleeve is interference fit with the partition plate, a movable plate is fixed to the lower wall of the adjustment plate, and the movable plate is fixedly connected to the screw sleeve.

[0010] The utility model is further configured such that a right side tube is fixed to the right wall of the box body at the position where the adjustment plate is located, and the interior of the right side tube is communicated with the interior of the box body above the partition, and a flow sensor is fixed on the right side tube.

[0011] The present invention is further configured such that a bottom plate is fixed to the lower wall of the box body, and the motor is fixedly connected to the bottom plate, and a hydrogen sensor is fixed to the right of the motor corresponding to the right wall of the box body.

[0012] The utility model is further configured such that the interior of the left tube communicates with the interior of the box body above the partition, a temperature sensor is fixed on the left tube, and a connecting tube is fixed to the left end of the left tube.

[0013] The present invention is further configured such that an insert is fixed to the rear wall of the box body, an installation frame is provided with an external clearance fit of the insert, a mounting plate is fixed to the rear wall of the installation frame, and mounting holes are provided at the four corner positions of the mounting plate.

[0014] The present invention is further configured such that an inserting strip is inserted into the left side of the inserting block, and the left end of the inserting strip passes through the installation frame and extends to the left side of the installation frame, a side panel is fixed to the outside of the left side of the inserting strip corresponding to the front wall of the installation plate, and an operating strip is fixed to the left end of the inserting strip.

[0015] The utility model is further configured such that the right wall of the side panel corresponds to the outside of the insertion strip and is provided with a return spring, a baffle is fixed to the right end of the return spring corresponding to the outside of the insertion strip, and the baffle is in contact with the mounting frame, and the length of the front wall of the insertion strip is less than the length of the rear wall of the insertion strip.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a motor, a screw, a screw sleeve and an adjusting plate. The motor is used to drive the screw to rotate, so that the screw sleeve moves accordingly and finally drives the adjusting plate to move accordingly. The height of the adjusting plate is adjusted to adjust the amount of hydrogen passing through, and finally the effect of selecting the air intake amount according to demand is achieved, which solves the problem that the existing air intake device is not convenient for adjusting the hydrogen intake amount and cannot select the hydrogen intake amount according to demand.

[0018] 2. The utility model provides a heating wire and generates heat by supplying power to the heating wire. The heat acts on the hydrogen in the double-layer tube to preheat the hydrogen. By preheating the hydrogen, the intake temperature of the hydrogen is increased, thereby avoiding affecting the combustion effect when the ambient temperature is low. This solves the problem that the existing intake device is not convenient for increasing the intake temperature of the hydrogen, which affects the combustion effect when the ambient temperature is low.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is an overall structural diagram of an intake device for a fuel-hydrogen blended engine.

[0022] Figure 2 This is a diagram of the internal structure of an intake device for a fuel-hydrogen blended engine.

[0023] Figure 3 This is a right side structural diagram of an intake device for a fuel-hydrogen blended engine.

[0024] Figure 4 This is a rear structural diagram of an intake device for a fuel-hydrogen blended engine.

[0025] Figure 5 for Figure 4 Partial structure diagram.

[0026] Figure 6 for Figure 5 Decomposition structure diagram.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1-Double-layer tube, 101-Connecting tube, 102-Heating wire, 103-End plate, 2-Mounting plate, 201-Side plate, 202-Mounting hole, 203-Mounting frame, 3-Box body, 301-Left tube, 301a-Temperature sensor, 302-Partition, 303-Bottom plate, 304-Hydrogen sensor, 305-Right tube, 305a-Flow sensor, 306-Insert block, 4-Insert strip, 401-Operation strip, 402-Reset spring, 403-Baffle, 5-Adjustment plate, 501-Rubber sleeve, 502-Moving plate, 6-Motor, 601-Screw, 601a-Screw sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1, please refer to Figure 1-4 The utility model is an air intake device for a fuel-hydrogen blending engine, comprising a box body 3, an adjusting plate 5 vertically arranged on the upper side of the interior of the box body 3, and the air intake amount is controlled by moving the adjusting plate 5, a partition 302 is fixed on the outer side of the adjusting plate 5 corresponding to the inner wall of the box body 3, and the interior of the box body 3 above the partition 302 is a hydrogen passage space, and a motor 6 is arranged on the lower side of the interior of the box body 3, a screw 601 is fixed on the power output shaft of the motor 6, and a screw sleeve 601a is connected to the outer surface of the screw 601 by threading. The motor 6 drives the screw 601 to rotate, so that the screw sleeve 601a moves, and finally drives the adjusting plate 5 to move to adjust the height of the adjusting plate 5;

[0031] Specifically, a rubber sleeve 501 is fixed to the outside of the adjustment plate 5, and the rubber sleeve 501 is interference-fitted with the partition 302 to prevent hydrogen from leaking between the partition 302 and the adjustment plate 5. A movable plate 502 is fixed to the lower wall of the adjustment plate 5, and the movable plate 502 is fixedly connected to the screw sleeve 601a. ​​The movement of the screw sleeve 601a drives the movable plate 502 to move, so that the adjustment plate 5 moves;

[0032] A right tube 305 is fixed to the right wall of the box body 3 at the location of the regulating plate 5. The right end of the right tube 305 is connected to the engine intake pipe, and the interior of the right tube 305 is connected to the interior of the box body 3 above the partition 302. A flow sensor 305a is fixed to the right tube 305 for detecting the flow of hydrogen passing through the right tube 305.

[0033] A bottom plate 303 is fixed to the lower wall of the box body 3, and the motor 6 is fixedly connected to the bottom plate 303. A hydrogen sensor 304 is fixed to the right wall of the box body 3 to the right of the motor 6. The hydrogen sensor 304 is used to detect whether hydrogen is contained in the interior of the box body 3 below the partition 302, so as to avoid the safety hazard caused by contact between hydrogen and the motor 6.

[0034] The operating process of this embodiment is as follows: the flow sensor 305a detects the hydrogen passing through the box body 3 and the right tube 305, and the hydrogen sensor 304 detects hydrogen leakage in the internal space of the box body 3 below the partition 302. When the hydrogen intake volume needs to be adjusted, the motor 6 is used to drive the screw 601 to rotate, driving the screw sleeve 601a to move and the movable plate 502 to move, so that the adjustment plate 5 moves up and down accordingly to adjust the hydrogen intake volume.

[0035] Example 2, please refer to Figure 1 、 2 , 4, 5 and 6 are the second embodiment of the present utility model, which is based on the previous embodiment, but differs from the first embodiment in that: a left tube 301 is fixed to the left wall of the box body 3 at the position where the adjustment plate 5 is located, and a double-layer tube 1 is provided to the left of the left tube 301. The double-layer tube 1 can be made of heat-conducting material. A heating wire 102 is provided inside the outer peripheral wall of the double-layer tube 1 for generating heat to preheat the hydrogen. An end plate 103 is fixed to the right end of the double-layer tube 1, and the end plate 103 is fixedly connected to the left tube 301;

[0036] Specifically, the interior of the left tube 301 is connected to the interior of the box body 3 above the partition 302. A temperature sensor 301a is fixed on the left tube 301 to detect the temperature of the preheated hydrogen. A connecting tube 101 is fixed to the left end of the left tube 301. The left end of the connecting tube 101 is connected to the hydrogen gas source.

[0037] An insert block 306 is fixed to the rear wall of the box body 3. The outer clearance of the insert block 306 is matched with the mounting frame 203. The mounting frame 203 is a circular shape. The insert block 306 is inserted into the mounting frame 203 to achieve the installation of the box body 3. The rear wall of the mounting frame 203 is fixed to the mounting plate 2. The four corners of the mounting plate 2 are provided with mounting holes 202. Bolts are passed through the mounting holes 202 to install the fuel-hydrogen blending engine intake device in a suitable position.

[0038] The left side of the insert block 306 is connected to the insert strip 4, and the left end of the insert strip 4 passes through the mounting frame 203 and extends to the left of the mounting frame 203. Inserting the insert strip 4 into the insert block 306 can secure the box body 3. The left side of the insert strip 4 is fixed to the front wall of the mounting plate 2. The left end of the insert strip 4 is fixed to an operating bar 401. The insert strip 4 can be moved by controlling the operating bar 401.

[0039] The right wall of the side panel 201 corresponds to the exterior of the insertion strip 4 and is provided with a return spring 402, which provides a rightward force for the baffle 403, so that the insertion strip 4 is inserted into the insertion block 306. The right end of the return spring 402 corresponds to the exterior of the insertion strip 4 and is fixed with the baffle 403, and the baffle 403 contacts the installation frame 203. The length of the front wall of the insertion strip 4 is shorter than the length of the rear wall of the insertion strip 4, so that the right end of the insertion strip 4 is an inclined surface. When installing the box body 3, the insertion block 306 can be inserted into the installation frame 203 without moving the control bar 401 to the left.

[0040] The rest of the structure is the same as that of Example 1;

[0041] The operation process of this embodiment is as follows: by operating the mounting plate 2, bolts are inserted through the mounting holes 202 to install the mounting plate 2 in the appropriate position. Then, the box body 3 is operated to insert the plug 306 into the mounting frame 203. The left end of the left tube 301 is connected to the external air source, and the right end of the right tube 305 is connected to the intake pipe. Finally, the electrical appliances in the fuel-hydrogen blending engine intake device are connected to the vehicle control system via conductive wires to complete the installation. When in use, the heat generated by the heating wire 102 preheats the hydrogen passing through the interior of the double-layer tube 1. At the same time, the temperature sensor 301a detects the temperature of the preheated hydrogen before it enters the interior of the box body 3.

[0042] In addition, the electrical appliances in the intake device of the fuel-hydrogen blending engine are all existing technologies and their models are not limited here. At the same time, the connection pipe 101 and the double-layer pipe 1, the double-layer pipe 1 and the end plate 103, the end plate 103 and the left pipe 301, the left pipe 301 and the box body 3, and the right pipe 305 and the box body 3 are all sealed to prevent hydrogen leakage from the surface. In addition, the temperature sensor 301a and the left pipe 301, and the flow sensor 305a and the right pipe 305 are also sealed.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fuel-hydrogen blending engine intake device, comprising a box body (3), characterized in that: An adjustment plate (5) is vertically provided on the upper side of the interior of the box body (3), a partition (302) is fixed on the exterior of the adjustment plate (5) corresponding to the inner wall of the box body (3), a motor (6) is provided on the lower side of the interior of the box body (3), a screw (601) is fixed on the power output shaft of the motor (6), and a screw sleeve (601a) is connected to the exterior of the screw (601) by threaded connection; A left side tube (301) is fixed to the left wall of the box body (3) at the position where the adjustment plate (5) is located. A double-layer tube (1) is provided on the left side of the left side tube (301). A heating wire (102) is provided inside the outer peripheral wall of the double-layer tube (1). An end plate (103) is fixed to the right end of the double-layer tube (1), and the end plate (103) is fixedly connected to the left side tube (301).

2. The air intake device for a fuel-hydrogen blended engine according to claim 1, characterized in that: A rubber sleeve (501) is fixed to the outside of the adjustment plate (5), and the rubber sleeve (501) is interference-fitted with the partition plate (302). A movable plate (502) is fixed to the lower wall of the adjustment plate (5), and the movable plate (502) is fixedly connected to the screw sleeve (601a).

3. The air intake device for a fuel-hydrogen blended engine according to claim 1, characterized in that: A right side tube (305) is fixed to the right wall of the box body (3) at the position where the regulating plate (5) is located, and the interior of the right side tube (305) is communicated with the interior of the box body (3) above the partition (302), and a flow sensor (305a) is fixed to the right side tube (305).

4. The air intake device for a fuel-hydrogen blended engine according to claim 3, characterized in that: A bottom plate (303) is fixed to the lower wall of the box body (3), and the motor (6) is fixedly connected to the bottom plate (303). A hydrogen sensor (304) is fixed to the right of the motor (6) corresponding to the right wall of the box body (3).

5. The air intake device for a fuel-hydrogen blended engine according to claim 1, characterized in that: The interior of the left tube (301) is in communication with the interior of the box body (3) above the partition (302), a temperature sensor (301a) is fixed on the left tube (301), and a connecting tube (101) is fixed at the left end of the left tube (301).

6. The air intake device for a fuel-hydrogen blended engine according to claim 1, characterized in that: An insert block (306) is fixed to the rear wall of the box body (3), a mounting frame (203) is provided with an external clearance fit of the insert block (306), a mounting plate (2) is fixed to the rear wall of the mounting frame (203), and mounting holes (202) are provided at the four corner positions of the mounting plate (2).

7. The air intake device for a fuel-hydrogen blended engine according to claim 6, characterized in that: The left side of the insert block (306) is plugged with an insert strip (4), and the left end of the insert strip (4) passes through the installation frame (203) and extends to the left side of the installation frame (203). The outside of the left side of the insert strip (4) is fixed with a side plate (201) corresponding to the front wall of the installation plate (2), and the left end of the insert strip (4) is fixed with an operating strip (401).

8. The air intake device for a fuel-hydrogen blended engine according to claim 7, characterized in that: The right wall of the side plate (201) corresponds to the outside of the inserting strip (4) and is provided with a return spring (402); a baffle (403) is fixed to the right end of the return spring (402) corresponding to the outside of the inserting strip (4), and the baffle (403) is in contact with the mounting frame (203); the length of the front wall of the inserting strip (4) is shorter than the length of the rear wall of the inserting strip (4).

Images