Low-temperature starting system of air cooled engine

Abstract

The utility model discloses an air-cooled engine low-temperature starting system which comprises a generator air duct, an air guide opening is formed in the generator air duct, and an air inlet pipe is fixedly connected to the air guide opening in a sealed mode. One end of the warm air pipe is connected with an air outlet of the fuel oil warm air blower, and the other end of the warm air pipe is connected with the air inlet pipe; the control valve is arranged on the warm air pipe or between the warm air pipe and the fuel oil warm air blower or between the warm air pipe and the air inlet pipe and used for controlling opening or closing of the warm air pipe. The adaptive sealing mechanism is positioned at an inlet of the generator air duct; when an engine is ready to start at low temperature, the adaptive sealing mechanism seals an inlet of an engine air duct; after low-temperature starting preparation of the engine is finished, the adaptive sealing mechanism opens an inlet of the engine air duct. According to the utility model, the problem of heating the air-cooled engine in a low-temperature environment is solved, so that the air-cooled engine can be started to work at a proper temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power stations, and particularly relates to a low-temperature starting system for an air-cooled engine. Background Art

[0002] The mobile power stations produced by our company are mainly used for military purposes and need to work stably under different temperatures and different scenarios. The main component in the mobile power station is an air-cooled generator set. There are many difficulties in the low-temperature starting of the air-cooled engine. For example, when the ambient temperature is very low, the internal temperature of the engine is too low, and the fuel is not easy to vaporize; and the lubrication inside the air-cooled engine is poor, etc.

[0003] At present, the air-cooled generator set of the mobile power station has no auxiliary measures for low-temperature starting, and mainly relies on manual turning of the engine by hand to assist in starting, which is relatively laborious.

[0004] Therefore, the applicant proposes a low-temperature starting system for an air-cooled engine, which can be well installed in the mobile power station and cooperate with the characteristics of the air-cooled generator set, so as to well solve the low-temperature starting of the air-cooled generator set. Content of the Utility Model

[0005] The utility model provides a low-temperature starting system for an air-cooled engine to solve the problems in the prior art.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A low-temperature starting system for an air-cooled engine includes an engine air duct, a air guiding port is opened on the engine air duct, and an air inlet pipe is hermetically and fixedly connected at the air guiding port;

[0008] It further includes a fuel air heater, a warm air duct and a control valve. One end of the warm air duct is connected to the air outlet of the fuel air heater, and the other end of the warm air duct is connected to the air inlet pipe; the control valve is arranged on the warm air duct or between the warm air duct and the fuel air heater or between the warm air duct and the air inlet pipe, and is used to control the opening or closing of the warm air duct;

[0009] It further includes an adaptive closing mechanism located at the inlet of the generator air duct; when preparing for the low-temperature starting of the engine, the adaptive closing mechanism closes the inlet of the engine air duct; after the preparation for the low-temperature starting of the engine is completed, the adaptive closing mechanism opens the inlet of the engine air duct.

[0010] Further, the air inlet pipe protrudes out of the generator air duct.

[0011] Further, both ends of the warm air duct are fastened with clamps.

[0012] Further, the control valve is a handle butterfly valve.

[0013] Furthermore, a cooling fan is provided on the air duct of the generator, and the air inlet of the cooling fan serves as the inlet of the generator air duct.

[0014] The adaptive closing mechanism includes a closing cover made of a flexible material. One end of the closing cover is closed, and the other end is open. A drawstring is passed through the opening.

[0015] When preparing for the low-temperature start of the engine, the closing cover is sleeved on the air inlet of the cooling fan and fastened by the drawstring to close the inlet of the engine air duct. After the preparation for the low-temperature start of the engine is completed, the drawstring is loosened, and the closing cover is removed from the air inlet of the cooling fan.

[0016] Furthermore, the closing cover is made of canvas.

[0017] Furthermore, the drawstring is made of nylon rope.

[0018] Advantages of the present utility model:

[0019] 1. The present utility model solves the heating of the air-cooled engine in a low-temperature environment, enabling the air-cooled engine to start and operate at an appropriate temperature.

[0020] 2. The present utility model is convenient to be arranged in a mobile power station, can well cooperate with the characteristics of the air-cooled generator set, and is convenient to transform existing equipment, which is conducive to popularization. Description of the Drawings

[0021] Figure 1 is the front view of the present utility model;

[0022] Figure 2 is the side view of the present utility model;

[0023] Figure 3 is the schematic diagram of the adaptive closing mechanism in the present utility model.

[0024] The drawings are only for illustrative purposes and should not be construed as a limitation to this patent; for better illustrating this embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0026] As Figures 1 to 3As shown in the figure, this embodiment provides a low-temperature starting system for an air-cooled engine, which includes an engine air duct 6. A air guiding port is opened on the engine air duct 6, and an air inlet pipe 4 is hermetically and fixedly connected at the air guiding port. The air inlet pipe 4 protrudes outward from the generator air duct 6.

[0027] It also includes a fuel air heater 1, a warm air duct 2 and a handle butterfly valve 5. One end of the warm air duct 2 is connected to the air outlet of the fuel air heater 1, and the other end of the warm air duct 2 is connected to the air inlet pipe 4. The handle butterfly valve 5 is arranged between the warm air duct 2 and the fuel air heater 1 and is used to control the opening or closing of the warm air duct 2. Both ends of the warm air duct 2 are fastened with clamps to avoid air leakage.

[0028] It also includes an adaptive closing mechanism, which is located at the inlet of the generator air duct 6. When preparing for the low-temperature starting of the engine, the adaptive closing mechanism closes the inlet of the engine air duct; after the preparation for the low-temperature starting of the engine is completed, the adaptive closing mechanism opens the inlet of the engine air duct.

[0029] Specifically in this embodiment, a cooling fan is provided on the generator air duct 6, and the cooling fan air inlet 7 serves as the inlet of the generator air duct. The adaptive closing mechanism includes a closing cover 8 made of canvas. One end of the closing cover 8 is closed and the other end is open, and a drawstring 9 is threaded through the open end and can be drawn and tightened. The drawstring 9 is made of nylon rope.

[0030] When preparing for the low-temperature starting of the engine, the closing cover 8 is sleeved on the cooling fan air inlet 7 and fastened by the drawstring 9 to close the inlet of the engine air duct 6; after the preparation for the low-temperature starting of the engine is completed, the drawstring is loosened and the closing cover is removed from the cooling fan air inlet 7.

[0031] The specific working process of the present utility model is as follows:

[0032] When preparing for the low-temperature starting of the engine, that is, in a low-temperature environment, the closing cover 8 is used to cover the cooling fan air inlet 7 at the end of the air-cooled diesel engine to prevent the entry of cooling air. Start the fuel air heater 1, and the handle butterfly valve 5 is in the open state. At this time, the warm air generated by the operation of the fuel air heater 1 enters the engine air duct through the warm air duct 2 and the air inlet pipe 4 and flows through the engine body to achieve the purpose of heating the engine.

[0033] When the engine body is heated to an appropriate temperature, that is, after the preparation for the low-temperature starting of the engine is completed, remove the closing cover 8, turn off the fuel air heater 1, and close the handle butterfly valve 5. Then start the engine. After the engine starts working, the air-cooled diesel engine sucks in cooling air through the cooling fan air inlet at the end. Since the handle butterfly valve 5 is closed, the cooling air enters the engine body through the air duct and takes away the heat generated during the operation of the engine, maintaining the engine running at an appropriate working temperature.

[0034] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be modified or equivalently replaced, and any modification or partial replacement without departing from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

[0035] If terms such as "first" and "second" are used in this article to define components, those skilled in the art should be aware that the use of "first" and "second" is only for the convenience of describing the present invention and simplifying the description. Without additional statements, the above terms have no special meanings.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A low temperature starting system for an air-cooled engine, comprising an engine air duct, characterized in that: The engine air duct is provided with an air guide port, and the air guide port is sealed and fixedly connected with an air inlet pipe; It also includes a fuel heater, a heater pipe and a control valve, one end of the heater pipe is connected to the air outlet of the fuel heater, and the other end of the heater pipe is connected to the air inlet pipe; the control valve is arranged on the heater pipe or between the heater pipe and the fuel heater or between the heater pipe and the air inlet pipe, and is used to control the opening or closing of the heater pipe; It also includes an adaptive sealing mechanism, which is located at the inlet of the generator air duct; when the engine is ready for low-temperature starting, the adaptive sealing mechanism closes the inlet of the engine air duct; after the engine is ready for low-temperature starting, the adaptive sealing mechanism opens the inlet of the engine air duct.

2. The air-cooled engine low-temperature starting system according to claim 1, characterized in that: The air inlet pipe protrudes outwardly from the generator air duct.

3. The air-cooled engine low-temperature starting system according to claim 2, characterized in that: The two ends of the warm air pipe are fastened with clamps.

4. The air-cooled engine low-temperature starting system according to claim 1, characterized in that: The control valve is a handle butterfly valve.

5. The air-cooled engine low-temperature starting system according to claim 1, characterized in that: A cooling fan is provided on the generator air duct, and an air inlet of the cooling fan serves as an inlet of the generator air duct; The adaptive closing mechanism comprises a closing cover made of a flexible material, one end of the closing cover is closed, the other end is open, and a draw cord is passed through the opening; When the engine is ready to start at low temperature, the sealing cover is installed on the air inlet of the cooling fan and fastened by a pull rope to close the inlet of the engine air duct; after the engine is ready to start at low temperature, the pull rope is loosened and the sealing cover is removed from the air inlet of the cooling fan.

6. The air-cooled engine low-temperature starting system according to claim 5, characterized in that: The closure cover is made of canvas.

7. The air-cooled engine low-temperature starting system according to claim 5, characterized in that: The draw rope is made of nylon rope.

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