CN215521090U - Liquefied gas fuel system for forklift - Google Patents
Liquefied gas fuel system for forklift Download PDFInfo
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- CN215521090U CN215521090U CN202120800322.XU CN202120800322U CN215521090U CN 215521090 U CN215521090 U CN 215521090U CN 202120800322 U CN202120800322 U CN 202120800322U CN 215521090 U CN215521090 U CN 215521090U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Forklifts And Lifting Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model belongs to the technical field of power systems of diesel fork trucks, and particularly relates to a liquefied gas fuel system for a fork truck. The forklift comprises a filter, a pressure regulator, a mixer, a first electromagnetic switching valve and a second electromagnetic switching valve, wherein the filter is fixed on a forklift body through a bottom plate, the pressure regulator is fixed on the forklift body through a mounting frame, the first electromagnetic switching valve is fixed on a shell of the pressure regulator, and the second electromagnetic switching valve is fixed on the forklift body through a support; the gas outlet of the filter is communicated with a high-pressure gas inlet of a pressure regulator through a high-pressure pipe, a low-pressure gas outlet of the pressure regulator is communicated with a low-pressure gas inlet of a mixer through a low-pressure pipe, and a mixed gas outlet of the mixer is communicated with a gas inlet of an engine through a pipeline; the first electromagnetic switching valve and the second electromagnetic switching valve are respectively and electrically connected with the fuel switch. Therefore, the utility model changes the existing gasoline engine into a system scheme with simple structure by taking liquefied gas as power fuel, and has simple control and high cost performance.
Description
Technical Field
The utility model belongs to the technical field of power systems of diesel fork trucks, and particularly relates to a liquefied gas fuel system for a fork truck.
Background
The fuel of a power system of the diesel fork lift truck generally comprises diesel oil, gasoline, liquefied gas and natural gas, the existing diesel fork lift truck generally uses liquefied gas as fuel and is a liquefied gas special engine, the control is complex, and the cost performance is not high. Therefore, a system scheme of modifying liquefied gas as power fuel on the basis of the existing gasoline engine is considered to be developed.
SUMMERY OF THE UTILITY MODEL
Aiming at the existing situation, the utility model designs a liquefied gas fuel system for a forklift, and the system scheme of changing the liquefied gas as power fuel on the basis of the existing gasoline engine is simple to control and high in cost performance.
The specific technical scheme is as follows:
a liquefied gas fuel system for a forklift comprises a filter 1, a pressure regulator 2, a mixer 3, a first electromagnetic switching valve 4 and a second electromagnetic switching valve 5, wherein the filter 1 is fixed on a forklift body through a bottom plate, the pressure regulator 2 is fixed on the forklift body through a mounting frame 21, the first electromagnetic switching valve 4 is fixed on a shell of the pressure regulator 2, and the second electromagnetic switching valve 5 is fixed on the forklift body through a support 51;
the gas outlet of the filter 1 is communicated with the high-pressure gas inlet of the pressure regulator 2 through a high-pressure pipe, the low-pressure gas outlet of the pressure regulator 2 is communicated with the low-pressure gas inlet of the mixer 3 through a low-pressure pipe, and the mixed gas outlet of the mixer 3 is communicated with the gas inlet of the engine through a pipeline;
the first electromagnetic switching valve 4 and the second electromagnetic switching valve 5 are respectively electrically connected with the fuel switch 6, the first electromagnetic switching valve 4 is used for controlling the high-pressure air inlet of the pressure regulator 2 to be opened and closed, and the inlet of the second electromagnetic switching valve 5 is communicated with the oil inlet pipe and the outlet is communicated with the oil outlet pipe.
Further, the water inlet of the pressure regulator 2 is communicated with the water outlet of the engine through a pipeline, and the water outlet of the pressure regulator 2 is communicated with the water return port of the engine through a pipeline.
Further, mounting bracket 21 is the right angle board of bending, and voltage regulator 2 and the horizontal plate upper end fixed connection of the board of bending, the vertical board of the board of bending and the corresponding fixed connection of fork truck organism, and seted up on the vertical board and dodge the notch.
Further, support 51 includes vertical mounting panel, arc curb plate and horizontal base plate, and the one end of arc curb plate and the side of vertical mounting panel are fixed, and the lower extreme and the horizontal base plate of arc curb plate are fixed, and during the installation, vertical mounting panel and fork truck organism correspond the installation, and 5 fixed mounting of second electromagnetic switching valve are on horizontal base plate, and laminating of second electromagnetic switching valve 5 and arc curb plate to through arc curb plate axial fixity.
The utility model has the following beneficial technical effects:
in the liquefied gas fuel system for a forklift according to the present invention, the L-position of the fuel changeover switch indicates that liquefied gas is used as fuel, and the operating principle thereof is as follows: the liquefied petroleum gas stored in the liquefied gas steel cylinder enters a filter through a high-pressure gas pipe, a small amount of buffering is carried out in the filter, the liquefied petroleum gas enters a pressure regulator through the high-pressure gas pipe after being buffered, the pressure is regulated in the pressure regulator, and the liquefied petroleum gas is gasified to form low-pressure gas, wherein the gasified petroleum gas uses the heat of cooling water of an engine; the gasified low-pressure gas enters a mixer, is mixed with the filtered air according to a certain proportion to form mixed gas, and then the mixed gas enters an engine to be combusted to form power source fuel; the G-range, in which the fuel switch is pressed, indicates that gasoline is used as fuel, and the operating principle is as follows: gasoline in the gasoline tank passes through the engine gasoline pump and the second electromagnetic switching valve, enters the engine from the oil inlet pipe and enters the engine from the oil outlet pipe, and is combusted to serve as power source fuel; therefore, the utility model changes the existing gasoline engine into a system scheme with simple structure by taking liquefied gas as power fuel, and has simple control and high cost performance.
Drawings
Fig. 1 is a schematic structural diagram of a liquefied gas fuel system for a forklift truck according to the present invention.
Fig. 2 is a schematic structural view of the filter of the present invention.
FIG. 3 is a schematic diagram of the mixer of the present invention.
Fig. 4 is a schematic structural diagram of the mounting bracket of the present invention.
FIG. 5 is a schematic view of the structure of the stent of the present invention.
Fig. 6 is a diagram showing an installation and use state of the liquefied gas fuel system for a forklift according to the present invention.
Wherein: the fuel mixing device comprises a filter 1, a pressure regulator 2, a mounting frame 21, a mixer 3, a first electromagnetic switching valve 4, a second electromagnetic switching valve 5, a bracket 51 and a fuel change-over switch 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
Referring to fig. 1 to 3, the liquefied gas fuel system for the forklift comprises a filter 1, a pressure regulator 2, a mixer 3, a first electromagnetic switching valve 4 and a second electromagnetic switching valve 5, wherein the filter 1 is fixed on a forklift body through a bottom plate, the pressure regulator 2 is fixed on the forklift body through a mounting frame 21, the first electromagnetic switching valve 4 is fixed on a shell of the pressure regulator 2, and the second electromagnetic switching valve 5 is fixed on the forklift body through a support 51;
the gas outlet of the filter 1 is communicated with the high-pressure gas inlet of the pressure regulator 2 through a high-pressure pipe, the low-pressure gas outlet of the pressure regulator 2 is communicated with the low-pressure gas inlet of the mixer 3 through a low-pressure pipe, and the mixed gas outlet of the mixer 3 is communicated with the gas inlet of the engine through a pipeline;
the first electromagnetic switching valve 4 and the second electromagnetic switching valve 5 are respectively electrically connected with the fuel switch 6, the first electromagnetic switching valve 4 is used for controlling the high-pressure air inlet of the pressure regulator 2 to be opened and closed, and the inlet of the second electromagnetic switching valve 5 is communicated with the oil inlet pipe and the outlet is communicated with the oil outlet pipe.
Further, the water inlet of the pressure regulator 2 is communicated with the water outlet of the engine through a pipeline, and the water outlet of the pressure regulator 2 is communicated with the water return port of the engine through a pipeline.
See fig. 4, mounting bracket 21 is the right angle board of bending, and voltage regulator 2 and the horizontal plate upper end fixed connection of the board of bending, the vertical board of the board of bending and the corresponding fixed connection of fork truck organism, and seted up on the vertical board and dodge the notch.
See fig. 5, the support 51 includes vertical mounting panel, arc curb plate and horizontal base plate, and the one end of arc curb plate is fixed with the side of vertical mounting panel, and the lower extreme and the horizontal base plate of arc curb plate are fixed, and during the installation, vertical mounting panel and fork truck organism correspond the installation, and 5 fixed mounting of second electromagnetic switching valve are on the horizontal base plate, and second electromagnetic switching valve 5 and the laminating of arc curb plate to through arc curb plate axial fixity.
Fig. 6 is a diagram showing an installation and use state of the liquefied gas fuel system for the forklift of the present invention, when the L-position of the fuel switch 6 indicates that liquefied gas is used as fuel, the operating principle is as follows: the liquefied petroleum gas stored in the liquefied gas steel cylinder enters a filter 1 through a high-pressure gas pipe, is filtered and slightly buffered in the filter 1, enters a pressure regulator 2 through the high-pressure gas pipe after being buffered, is subjected to pressure regulation and gasification in the pressure regulator 2 to form low-pressure gas, wherein the gasified gas uses the heat of cooling water of an engine; the gasified low-pressure gas enters a mixer 3, is mixed with the filtered air according to a certain proportion to form mixed gas, and then the mixed gas enters an engine to be combusted to form power source fuel;
the G-range, in which the fuel switch is pressed, indicates that gasoline is used as fuel, and the operating principle is as follows: gasoline in the gasoline tank passes through the engine gasoline pump and the second electromagnetic switching valve 5, enters the engine from the oil inlet pipe and enters the engine from the oil outlet pipe, and is combusted to serve as power source fuel;
the communicating pipeline except the high-pressure gas pipe is sleeved with a matching hose clamp which is used for fixing the pipeline and a mounting opening on corresponding equipment.
Therefore, the utility model changes the existing gasoline engine into a system scheme with simple structure by taking liquefied gas as power fuel, and has simple control and high cost performance.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A liquefied gas fuel system for fork truck which characterized in that: the forklift comprises a filter (1), a voltage regulator (2), a mixer (3), a first electromagnetic switching valve (4) and a second electromagnetic switching valve (5), wherein the filter (1) is fixed on a forklift body through a bottom plate, the voltage regulator (2) is fixed on the forklift body through a mounting frame (21), the first electromagnetic switching valve (4) is fixed on a shell of the voltage regulator (2), and the second electromagnetic switching valve (5) is fixed on the forklift body through a support (51);
the air outlet of the filter (1) is communicated with the high-pressure air inlet of the pressure regulator (2) through a high-pressure pipe, the low-pressure air outlet of the pressure regulator (2) is communicated with the low-pressure air inlet of the mixer (3) through a low-pressure pipe, and the mixed gas outlet of the mixer (3) is communicated with the air inlet of the engine through a pipeline;
the first electromagnetic switching valve (4) and the second electromagnetic switching valve (5) are electrically connected with the fuel switch (6) respectively, the first electromagnetic switching valve (4) is used for controlling the high-pressure air inlet of the pressure regulator (2) to be opened and closed, and the inlet of the second electromagnetic switching valve (5) is communicated with the oil inlet pipe and the outlet is communicated with the oil outlet pipe.
2. A liquefied gas fuel system for forklift trucks according to claim 1, wherein: the water inlet of the pressure regulator (2) is communicated with the water outlet of the engine through a pipeline, and the water outlet of the pressure regulator (2) is communicated with the water return port of the engine through a pipeline.
3. A liquefied gas fuel system for forklift trucks according to claim 1, wherein: mounting bracket (21) are the right angle board of bending, voltage regulator (2) and the horizontal plate upper end fixed connection of the board of bending, and the vertical board and the fork truck organism of the board of bending correspond fixed connection, and have seted up on the vertical board and dodge the notch.
4. A liquefied gas fuel system for forklift trucks according to claim 1, wherein: support (51) include vertical mounting panel, arc curb plate and horizontal base plate, and the one end of arc curb plate and the side of vertical mounting panel are fixed, and the lower extreme and the horizontal base plate of arc curb plate are fixed, and during the installation, vertical mounting panel and fork truck organism correspond the installation, and second electromagnetic switching valve (5) fixed mounting is on horizontal base plate, and laminating of second electromagnetic switching valve (5) and arc curb plate to through arc curb plate axial fixity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800322.XU CN215521090U (en) | 2021-04-19 | 2021-04-19 | Liquefied gas fuel system for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800322.XU CN215521090U (en) | 2021-04-19 | 2021-04-19 | Liquefied gas fuel system for forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521090U true CN215521090U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120800322.XU Active CN215521090U (en) | 2021-04-19 | 2021-04-19 | Liquefied gas fuel system for forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215521090U (en) |
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2021
- 2021-04-19 CN CN202120800322.XU patent/CN215521090U/en active Active
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