CN217582297U

CN217582297U - Structure for solving plateau start flameout problem of small-displacement engine for loader

Info

Publication number: CN217582297U
Application number: CN202221443101.2U
Authority: CN
Inventors: 刘传强; 孙长良; 齐高品; 臧传斌; 郭江昆; 韩家威
Original assignee: LOVOL Engineering Machinery Group Co Ltd
Current assignee: Lovol Heavy Industry Group Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-14
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a solve structure of little discharge capacity engine plateau start flameout problem for loader, this structure includes the engine, the inlet end of engine is connected with the empty filter of engine, be equipped with the empty filter air inlet of engine on the empty filter of engine, the inlet end of engine still is connected with centrifugal fan, be connected with one-way check valve between the inlet end of centrifugal fan and engine, the engine electricity is connected with engine control assembly, ECU and engine control assembly, one-way check valve, centrifugal fan electricity is connected, the battery and engine control assembly, one-way check valve, centrifugal fan, the switch electricity is connected. Specifically, ECU, battery and switch all adopt prior art, no longer give unnecessary details here, and during the use, ECU is used for controlling engine control assembly, one-way check valve and centrifugal fan.

Description

Structure for solving plateau start flameout problem of small-displacement engine for loader

Technical Field

The utility model relates to an engineering machine tool technical field, it is specific to relate to a solve structure of little discharge capacity engine plateau start flameout problem for loader.

Background

The loader with small tonnage of 1.3 tons or less is mainly used for loading engines with the capacity of 7 liters or less, has small displacement and high engine load rate, is difficult to start and is easy to extinguish when operating in a high-altitude area; the adaptability of the working condition is reduced, and the working range is small.

The user is when starting, mostly through dozens of frequent starts and step on the throttle deeply and just can take the car reluctantly, starts many times simultaneously and will lead to whole car battery feed, and the battery life is short.

When the engine is started, the rotating speed of the engine is low, the air inflow is in direct proportion to the rotating speed of the engine, the air inflow is small, the engine automatically detects and increases the rotating speed of the engine through multiple fuel injections, oil consumption is high, and due to incomplete combustion, a large amount of black smoke exists in exhaust, and the exhaust standard exceeding is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem provide a solve structure of little discharge capacity engine plateau start flame-out problem for loader, engine start is swiftly convenient.

In order to achieve the purpose, the utility model discloses a solve structure of little discharge capacity engine plateau start flameout problem for loader, this structure includes the engine, the inlet end of engine is connected with the empty filter of engine, be equipped with the empty filter air inlet of engine on the empty filter of engine, the inlet end of engine still is connected with centrifugal fan, be connected with one-way check valve between the inlet end of centrifugal fan and engine, the engine electricity is connected with engine control assembly, ECU and engine control assembly, one-way check valve, the centrifugal fan electricity is connected, battery and engine control assembly, one-way check valve, centrifugal fan, the switch electricity is connected. Specifically, ECU, battery and switch all adopt prior art, no longer give unnecessary details here, and during the use, ECU is used for controlling engine control assembly, one-way check valve and centrifugal fan.

Preferably, an installation support is installed in a cabin of the loader, a plurality of supporting legs are connected to the centrifugal fan, and the installation bolts penetrate through the supporting legs and then are in threaded connection with the installation support. When in use, the centrifugal fan is convenient to install.

Preferably, the air outlet end of the engine is connected with a turbocharger, and the turbocharger is positioned between the air filter of the engine and the air inlet end of the engine. When in use, the turbocharger compresses air and inputs the compressed air into the air inlet end of the engine.

Preferably, centrifugal fan has fan air inlet and fan gas outlet, and the fan air inlet is connected with the empty filter of fan, and the fan gas outlet is connected with one-way check valve. When the centrifugal fan is used, air is conveyed to the air inlet end of the engine by the centrifugal fan.

Preferably, the centrifugal fan is connected with the engine through an air inlet rubber hose.

When the centrifugal fan is started, the one-way check valve is synchronously opened, and the engine rotates to drive the turbocharger to synchronously introduce air passing through an air filter and an air inlet rubber pipe of the engine into the engine; after the engine is started and normally runs, the one-way check valve is closed, so that air is prevented from overflowing through the air inlet rubber tube, and air loss is prevented; the centrifugal fan is integrated with a fan air filter, and an air filter element is arranged in the centrifugal fan, so that air is effectively filtered, and clean air is guaranteed to enter an engine. The engine is started quickly and conveniently, and meanwhile, the engine is burnt completely, so that the pollutant emission is reduced.

To sum up, the beneficial effects of the utility model reside in that: the engine is started quickly and conveniently, and meanwhile, the engine is burnt completely, so that the pollutant emission is reduced.

Drawings

Fig. 1 is a schematic structural view of a small displacement engine and a centrifugal fan for a loader according to the present invention;

fig. 2 is a schematic diagram of a pipeline structure of a small displacement engine and a centrifugal fan for a loader according to the present invention;

fig. 3 is a schematic front view of a small displacement engine for a loader and a centrifugal fan in the centrifugal fan according to the present invention;

fig. 4 is a schematic top view of a small displacement engine and a centrifugal fan in the centrifugal fan for a loader according to the present invention;

fig. 5 is a left side view structure diagram of the centrifugal fan in the small displacement engine and the centrifugal fan for the loader.

In the figure: 1. an engine; 2. an engine air filter; 3. an engine air filter air intake; 4. an air inlet rubber pipe; 5. an air outlet rubber pipe; 6. a turbocharger; 7. a one-way check valve; 8. a centrifugal fan; 9. installing a bolt; 10. mounting a bracket; 11. an engine control assembly; 12. an ECU; 13. a battery; 14. a switch; 15. a fan air filter; 16. a fan air inlet; 17. a fan air outlet; 18. the legs are supported.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 to 5, a structure for solving the problem of plateau start flameout of a small-displacement engine for a loader comprises an engine 1, wherein an air inlet end of the engine 1 is connected with an engine air filter 2, an air inlet 3 of the engine air filter is arranged on the engine air filter 2, an air inlet end of the engine 1 is also connected with a centrifugal fan 8, a one-way check valve 7 is connected between the centrifugal fan 8 and the air inlet end of the engine 1, the engine 1 is electrically connected with an engine control assembly 11, an ecu is electrically connected with the engine control assembly 11, the one-way check valve 7 and the centrifugal fan 8, and a storage battery 13 is electrically connected with the engine control assembly 11, the one-way check valve 7, the centrifugal fan 8 and a switch 14. Specifically, the ECU, the battery 13 and the switch 14 are all in the prior art, and are not described herein again, and when in use, the ECU is used for controlling the engine control assembly 11, the one-way check valve 7 and the centrifugal fan 8.

An installation support 10 is installed in a cabin of the loader, a plurality of supporting feet 18 are connected to the centrifugal fan 8, and the installation bolt 9 penetrates through the supporting feet 18 and then is in threaded connection with the installation support 10. When in use, the centrifugal fan 8 is convenient to install.

The air outlet end of the engine 1 is connected with a turbocharger 6, and the turbocharger 6 is positioned between the air filter 2 of the engine and the air inlet end of the engine 1. In use, the turbocharger 6 compresses air for delivery to the intake end of the engine 1.

The centrifugal fan 8 is provided with a fan air inlet 16 and a fan air outlet 17, the fan air inlet 16 is connected with a fan air filter 15, and the fan air outlet 17 is connected with the one-way check valve 7. When in use, the centrifugal fan 8 delivers air to the intake end of the engine 1.

Specifically, the centrifugal fan 8 is connected with the engine 1 through an air inlet rubber tube 4. The gas hose 4 is used for conveying gas and is convenient to use.

The using method comprises the following steps:

s1, opening a one-way check valve 7 and starting a centrifugal fan 8. Specifically, in step S1, the self-check is completed within 1 to 3 seconds after the one-way check valve 7 and the centrifugal fan 8 are energized. Compressed air is provided for an air inlet system of the engine 1, and the starting air consumption is reserved.

At the moment, the instrument in the cab synchronously flashes and displays a prompt for 'please later in the process of starting preparation'; how the cab instrument works is the prior art, and is not described in detail herein.

And S2, starting the engine 1 after the centrifugal fan 8 works for a preset time, and when the rotating speed r of the engine 1 = idle speed + preset rotating speed, delaying the preset time and then sequentially closing the one-way check valve 7 and the centrifugal fan 8. Specifically, in step S2, the preset time for the centrifugal fan 8 to work is 10 to 20 seconds, and preferably, the preset time for the centrifugal fan 8 to work is 15 seconds; the preset rotating speed of the engine 1 is 150-250 r/min, and preferably, the preset rotating speed of the engine 1 is 200 r/min; the engine 1 is delayed for a predetermined time of 25-35 seconds, and preferably, the engine 1 is delayed for a predetermined time of 20 seconds. Specifically, in step S2, the engine 1 starts to synchronously drive the turbocharger 6.

When the centrifugal fan 8 works for 10-20 seconds, the prompt of the instrument in the cab disappears, and at the moment, the instrument can be started normally.

And S3, when the rotating speed r of the engine 1 reaches the idle speed and continuously runs for a preset time, indicating that the engine 1 is normally started. In step S3, the engine 1 is continuously operated for a preset time of 25 to 35 seconds, and preferably, the engine 1 is continuously operated for a preset time of 20 seconds.

When the centrifugal fan 8 is started, the one-way check valve 7 is synchronously started, and the engine 1 rotates to drive the turbocharger 6 to synchronously introduce air passing through the air filter 2 and the air inlet rubber hose 4 of the engine into the engine; after the engine 1 is started and normally runs, the one-way check valve 7 is closed, so that air is prevented from overflowing through the air inlet rubber tube 4, and air loss is prevented; the centrifugal fan 8 is integrated with a fan air filter 15, and an air filter element is arranged in the centrifugal fan, so that air is effectively filtered, and clean air is guaranteed to enter the engine 1. The engine 1 is started quickly and conveniently, and meanwhile, the engine 1 burns completely, so that the pollutant emission is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a solve structure of little discharge capacity engine plateau start flameout problem for loader, including engine (1), a serial communication port, the inlet end of engine (1) is connected with the empty filter of engine (2), be equipped with empty filter air inlet of engine (3) on the empty filter of engine (2), the inlet end of engine (1) still is connected with centrifugal fan (8), be connected with one-way check valve (7) between the inlet end of centrifugal fan (8) and engine (1), engine (1) electricity is connected with engine control assembly (11), ECU and engine control assembly (11), one-way check valve (7), centrifugal fan (8) electricity is connected, battery (13) and engine control assembly (11), one-way check valve (7), centrifugal fan (8), switch (14) electricity is connected.

2. The structure for solving the problem of plateau start flameout of a small-displacement engine for the loader as claimed in claim 1, wherein a mounting bracket (10) is installed in a cabin of the loader, a plurality of supporting feet (18) are connected to the centrifugal fan (8), and a mounting bolt (9) is in threaded connection with the mounting bracket (10) after penetrating through the supporting feet (18).

3. The structure for solving the problem of plateau start flameout of a small-displacement engine for a loader as recited in claim 1, characterized in that a turbocharger (6) is connected to the air outlet end of the engine (1), and the turbocharger (6) is located between the air filter (2) of the engine and the air inlet end of the engine (1).

4. The structure for solving the problem of plateau start flameout of a small-displacement engine for a loader according to claim 3, wherein the centrifugal fan (8) is provided with a fan air inlet (16) and a fan air outlet (17), the fan air inlet (16) is connected with a fan air filter (15), and the fan air outlet (17) is connected with the one-way check valve (7).

5. The structure for solving the problem of plateau start flameout of a small displacement engine for a loader according to any one of claims 1 to 4 wherein the centrifugal fan (8) is connected with the engine (1) through an air inlet hose (4).