CN114290895B - Oil supply system and control method thereof - Google Patents
Oil supply system and control method thereof Download PDFInfo
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- CN114290895B CN114290895B CN202210002825.1A CN202210002825A CN114290895B CN 114290895 B CN114290895 B CN 114290895B CN 202210002825 A CN202210002825 A CN 202210002825A CN 114290895 B CN114290895 B CN 114290895B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 89
- 239000000446 fuel Substances 0.000 claims abstract description 86
- 230000009471 action Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000002828 fuel tank Substances 0.000 claims description 74
- 238000012544 monitoring process Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to an oil supply system and a control method thereof, wherein the oil supply system is connected with an engine to supply oil for the engine, and comprises: the main oil tank is used for connecting an engine; the auxiliary oil tank is connected with the main oil tank through a pipeline; the air supply module is connected with the auxiliary oil tank through a pipeline; the control unit is connected with the air supply module in a communication way; the air supply module supplies air to the auxiliary oil tank under the control of the control unit so as to change the air pressure in the auxiliary oil tank, and fuel in the auxiliary oil tank can enter the main oil tank under the action of the air pressure. Above-mentioned oil feeding system, main oil tank is connected in the engine, and main oil tank passes through the pipeline and establishes ties with the bellytank, through setting up air feed module and control unit, when the fuel liquid level in the main oil tank is less than the minimum liquid level value of predetermineeing, the gas is input to the bellytank to the control unit steerable air feed module in to make the fuel in the bellytank input in the main oil tank in order to supply oil for the engine, so alright realize in the fuel input main oil tank in the bellytank through control unit, the operation of being convenient for.
Description
Technical Field
The invention relates to the technical field of low-pressure oil supply systems, in particular to an oil supply system and a control method thereof.
Background
Along with the development of the domestic transportation industry, long-distance transportation gradually becomes trend, the volume demand of the whole vehicle on the oil tank is larger and larger, and because the volume demand of the whole vehicle on the oil tank is limited by the wheelbase space of the whole vehicle, the single oil tank is adopted to meet the volume demand of the whole vehicle on the oil tank, so that the adoption of double oil tanks becomes one of effective schemes for meeting the volume demand of the whole vehicle on the oil tank.
In the prior art, two fuel tanks are often connected in parallel to form a double-fuel-tank fuel supply system, in the parallel mode, an engine fuel pipeline is respectively connected with the two fuel tanks, the two fuel tanks are switched by using a three-way valve, when one fuel tank is used up, the three-way valve is operated to switch the engine fuel pipeline to the other fuel tank for continuous use, but the fuel pipeline of the parallel double-fuel-tank fuel supply system is complex, the use process needs manual operation, and the use is inconvenient.
Disclosure of Invention
Based on the above, it is necessary to provide an oil supply system and a control method thereof which are convenient to operate, aiming at the problem that the current parallel double-tank oil supply system is inconvenient to operate.
According to one aspect of the present application, there is provided an oil supply system connected to an engine to supply oil to the engine, the oil supply system comprising:
the main oil tank is used for connecting the engine;
the auxiliary oil tank is connected with the main oil tank through a pipeline;
the air supply module is connected with the auxiliary oil tank through a pipeline; and
the control unit is in communication connection with the air supply module;
the auxiliary fuel tank comprises a main fuel tank, a control unit, a fuel supply module and a fuel supply module, wherein the fuel supply module supplies air to the auxiliary fuel tank under the control of the control unit so as to change the air pressure in the auxiliary fuel tank, and fuel in the auxiliary fuel tank can enter the main fuel tank under the action of air pressure.
In one embodiment, the oil supply system further comprises a first liquid level detection unit, wherein the first liquid level detection unit is installed in the main oil tank and is in communication connection with the control unit, and is used for monitoring the liquid level in the main oil tank and sending a first liquid level signal to the control unit; the control unit controls the air supply module to supply air to the auxiliary oil tank according to the first liquid level signal.
In one embodiment, the oil supply system further comprises a pressure monitoring unit, wherein the pressure monitoring unit is installed on the auxiliary oil tank and is in communication connection with the control unit, and the pressure monitoring unit is used for monitoring the pressure in the auxiliary oil tank and sending a pressure signal to the control unit; the control unit controls the air supply module to supply air to the auxiliary oil tank according to the pressure signal.
In one embodiment, the oil supply system further comprises a second liquid level monitoring unit, wherein the second liquid level monitoring unit is installed in the auxiliary oil tank and is in communication connection with the control unit, and is used for monitoring the liquid level in the auxiliary oil tank and sending a second liquid level signal to the control unit, and the control unit controls the air supply module to stop supplying air to the auxiliary oil tank according to the second liquid level signal.
In one embodiment, the air supply module comprises an air storage unit, an air filter and an air inlet electromagnetic valve which are sequentially connected, an air outlet end of the air inlet electromagnetic valve is connected with the auxiliary oil tank through a pipeline, the air inlet electromagnetic valve is in communication connection with the control unit, and the air inlet electromagnetic valve is opened or closed under the control of the control unit.
In one embodiment, the oil supply system further comprises a vent solenoid valve connected to the secondary oil tank through a pipe and communicatively connected to the control unit, and the vent solenoid valve is opened or closed under the control of the control unit to vent the gas in the secondary oil tank.
In one embodiment, the fuel supply system further comprises a fuel filtering unit, and the fuel filtering unit is connected to the liquid outlet end of the main fuel tank through a pipeline and is used for filtering moisture and impurities in fuel.
In one embodiment, the oil supply system further comprises an oil inlet pipe and an oil return pipe, wherein the inlet end of the oil inlet pipe is connected to the outlet end of the fuel filtering unit, and the outlet end of the oil return pipe is connected to the inlet end of the oil inlet pipe.
According to another aspect of the present application, there is provided a control method of the oil supply system as claimed in any one of the preceding claims, comprising the steps of:
acquiring the liquid level of the main oil tank;
when the liquid level of the main oil tank is lower than a preset minimum liquid level value, delivering gas to the auxiliary oil tank so that fuel in the auxiliary oil tank flows into the main oil tank under the action of air pressure;
and stopping conveying the gas to the auxiliary oil tank when the liquid level of the main oil tank is higher than a preset maximum liquid level value. In one embodiment, after the step of delivering gas to the secondary fuel tank to cause fuel in the secondary fuel tank to flow into the main fuel tank under the action of air pressure, the method further comprises the steps of:
acquiring the air pressure in the auxiliary oil tank, and stopping conveying air to the auxiliary oil tank when the air pressure value in the auxiliary oil tank is higher than a preset maximum air pressure value;
and when the air pressure value in the auxiliary oil tank is lower than the preset minimum air pressure, conveying air to the auxiliary oil tank.
Above-mentioned oil feeding system, main oil tank is connected in the engine, and main oil tank passes through the pipeline and establishes ties with the bellytank, through setting up air feed module and control unit, when the fuel liquid level in the main oil tank is less than the minimum liquid level value of predetermineeing, the gas is input to the bellytank to the control unit steerable air feed module in to make the fuel in the bellytank input in the main oil tank in order to supply oil for the engine, so alright realize in the fuel input main oil tank in the bellytank through control unit, the operation of being convenient for.
Drawings
FIG. 1 is a schematic diagram of an oil supply system of the present invention.
Reference numerals illustrate:
100. an oil supply system; 200. an engine; 210. an oil inlet; 220. an oil outlet; 110. a main oil tank; 111. a liquid outlet end; 112. a liquid inlet end; 120. an auxiliary oil tank; 121. a liquid outlet; 122. an air inlet; 123. an exhaust port; 130. a gas supply module; 131. an air inlet electromagnetic valve; 132. a gas filter; 133. a gas storage unit; 140. a control unit; 151. a display; 152. an exhaust electromagnetic valve; 153. a fuel filtering unit; 154. a pressure monitoring unit; 155. an oil guide pipe; 156. an oil inlet pipe; 157. and an oil return pipe.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, may be internal to the two elements or in an interaction relationship between the two elements, unless otherwise specifically defined. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, fig. 1 shows a schematic diagram of an oil supply system according to an embodiment of the present invention, and an oil supply system 100 provided herein includes a main oil tank 110, a sub-oil tank 120, an air supply module 130, and a control unit 140. The main fuel tank 110 is connected with the engine 200 to supply fuel to the engine 200, the auxiliary fuel tank 120 is connected with the main fuel tank 110 through a pipeline, and the control unit 140 can control the air supply module 130 to input air into the auxiliary fuel tank 120 so that the fuel in the auxiliary fuel tank 120 enters the main fuel tank 110 under the action of air pressure, thereby realizing the fuel supply of double fuel tanks.
Specifically, the main fuel tank 110 has a hollow housing structure, and has a receiving cavity therein, and fuel is received in the receiving cavity of the main fuel tank 110. The main oil tank 110 includes a liquid outlet end 111 and a liquid inlet end 112 which are respectively communicated with the accommodating cavity, the liquid outlet end 111 is connected with an oil inlet 210 of the engine 200 through a pipeline to supply oil to the engine 200, and the liquid inlet end 112 of the main oil tank 110 is connected with the auxiliary oil tank 120 through a pipeline so as to input the fuel in the auxiliary oil tank 120 into the main oil tank 110 for the engine 200 to use.
The auxiliary fuel tank 120 has a hollow housing structure, and has a receiving cavity therein, and fuel is received in the receiving cavity of the auxiliary fuel tank 120. The auxiliary oil tank 120 comprises a liquid outlet 121, an air inlet 122 and an air outlet 123 which are respectively communicated with the accommodating cavity, the liquid outlet 121 of the auxiliary oil tank 120 is connected with the liquid inlet 112 of the main oil tank 110 through an oil guide pipe 155, the air inlet 122 of the auxiliary oil tank 120 is communicated with the air supply module 130 through a pipeline, and the air outlet 123 of the auxiliary oil tank 120 is communicated with the surrounding atmosphere through a pipeline. One end of the oil guide pipe 155 extends into the bottom of the auxiliary oil tank 120 through the liquid outlet 121 of the auxiliary oil tank 120, and the other end extends into the liquid inlet 112 of the main oil tank 110.
In this way, the air supply module 130 can supply air into the auxiliary fuel tank 120 to change the air pressure in the auxiliary fuel tank 120, and the fuel in the auxiliary fuel tank 120 can enter the main fuel tank 110 for the engine 200 under the action of the air pressure.
The gas supply module 130 is connected to the sub-tank 120 through a pipe to supply gas to the sub-tank 120, and the gas supply module 130 includes a gas inlet solenoid valve 131, a gas filter 132, and a gas storage unit 133, which are sequentially communicated. The gas storage unit 133 is a hollow shell structure, and has a containing cavity therein, the containing cavity is used for containing gas, the gas outlet end of the gas storage unit 133 is connected with the gas inlet end of the gas filter 132 through a pipeline, the gas outlet end of the gas filter 132 is connected with the gas inlet end of the gas inlet electromagnetic valve 131 through a pipeline, and the gas outlet end of the gas inlet electromagnetic valve 131 is connected with the gas inlet 122 of the auxiliary fuel tank 120 through a pipeline so as to input gas into the auxiliary fuel tank 120.
Thus, the air in the air storage unit 133 can be sequentially input into the auxiliary fuel tank 120 through the air filter 132 and the air inlet solenoid valve 132 by controlling and opening the air inlet solenoid valve 132, the air filter 132 can filter impurities and moisture in the air to output dry and pure air into the auxiliary fuel tank 120, and the air input into the auxiliary fuel tank 120 can change the air pressure in the auxiliary fuel tank, so that the fuel in the auxiliary fuel tank 120 enters the main fuel tank 110 under the action of the air pressure for the engine 200.
The control unit 140 is communicatively connected to the air supply module 130 to control the air supply module 130. The control unit 140 is communicatively connected to one end of the intake solenoid valve 131 for controlling the opening or closing of the intake solenoid valve 131. When the control unit 140 controls the air inlet solenoid valve 131 to open, the air supply module 130 can input air into the auxiliary fuel tank 120; when the control unit 140 controls the intake solenoid valve 131 to be closed, the gas supply module 130 stops the supply of gas into the sub-tank 120.
In some embodiments, the oil supply system 100 further includes a first liquid level detection unit (not shown in the figures). The first liquid level detection unit is installed on the main tank 110 and is connected to the control unit 140 in a communication manner, and the first liquid level detection unit may contact the bottom of the main tank 110 to monitor the fuel level in the main tank 110 and send a first liquid level signal to the control unit 140, and the control unit 140 may control the air supply module 130 to supply air to the auxiliary tank 120 according to the first liquid level signal.
In this way, when the first liquid level signal of the main tank 110 is lower than the preset minimum liquid level value, the control unit 140 controls the air inlet solenoid valve 131 to open, and the air supply module 130 supplies air to the auxiliary tank 120 so that the fuel in the auxiliary tank 120 flows into the main tank 110 under the action of air pressure; when the first liquid level signal of the main tank 110 is higher than the preset maximum liquid level value, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub-tank 120.
In some embodiments, the oil supply system 100 further includes a pressure monitoring unit 154. The pressure monitoring unit 154 is installed on the auxiliary fuel tank 120 and is connected to the control unit 140 in a communication manner, the pressure monitoring unit 154 is used for monitoring the air pressure in the auxiliary fuel tank 120 and sending an air pressure signal to the control unit 140, and the control unit 140 can control the air supply module 130 to supply air to the auxiliary fuel tank 120 or stop supplying air to the auxiliary fuel tank 120 according to the air pressure signal.
As such, when the air pressure value in the sub-tank 120 is lower than the preset minimum air pressure, the control unit 140 controls the air intake solenoid valve 131 to open, and the air supply module 130 supplies air to the sub-tank 120 so that the fuel in the sub-tank 120 flows into the main tank 110 under the air pressure; when the air pressure value in the sub-tank 120 is higher than the preset maximum air pressure value, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub-tank 120.
In some embodiments, the oil supply system 100 further includes a second liquid level detection unit (not shown in the figures). The second liquid level detection unit is installed on the auxiliary fuel tank 120 and is connected to the control unit 140 in a communication manner, and the second liquid level detection unit may contact the bottom of the auxiliary fuel tank 120 to monitor the fuel level in the auxiliary fuel tank 120 and send a second liquid level signal to the control unit 140, and the control unit 140 controls the air supply module 130 to stop supplying air to the auxiliary fuel tank 120 according to the second liquid level signal.
Thus, when the second liquid level signal of the auxiliary fuel tank 120 is not zero, that is, when fuel is still in the auxiliary fuel tank 120, the control unit 140 controls the air inlet solenoid valve 131 to open, and the air supply module 130 supplies air to the auxiliary fuel tank 120 so that the fuel in the auxiliary fuel tank 120 flows into the main fuel tank 110 under the action of air pressure; when the second liquid level signal of the sub tank 120 is zero, that is, when there is no fuel in the sub tank 120, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub tank 120.
In some embodiments, the oil supply system 100 further includes a display 151. The display 151 is communicatively connected to the control unit 140, the control unit 140 processes the first liquid level signal of the main tank 110 and the second liquid level signal of the auxiliary tank 120 and outputs the sum of the liquid level values of the main tank 110 and the auxiliary tank 120 to the display 151, and the user can obtain the total amount of fuel in the main tank 110 and the auxiliary tank 120 according to the sum of the liquid level values displayed on the display 151 so as to add fuel in time.
In some embodiments, the oil supply system 100 further includes an exhaust solenoid valve 152. The vent solenoid valve 152 is connected to the secondary tank 120 through a pipe and is communicatively connected to the control unit 140, and when the pressure monitoring unit 154 detects that the air pressure value in the secondary tank 120 is higher than a preset maximum air pressure value, the control unit 140 controls the vent solenoid valve 152 to open to vent the air in the secondary tank 120 until the air pressure in the secondary tank 120 is restored to the atmospheric pressure.
In some embodiments, the oil supply system 100 further includes a fuel filtering unit 153, an oil inlet pipe 156, and an oil return pipe 157. The inlet end of the fuel filter unit 153 is connected to the liquid outlet end 111 of the main tank 110 through a pipe, and the outlet end of the fuel filter unit 153 is connected to the inlet end of the oil inlet pipe 156 for filtering water and impurities in the fuel. The outlet end of the oil feed pipe 156 is connected to an oil inlet 210 of the engine 200 to input the filtered fuel to the engine 200. The inlet end of the return pipe 157 is connected to the oil outlet 220 of the engine 200, the outlet end of the return pipe 157 is connected to the inlet end of the oil inlet pipe 156, and the unconsumed fuel in the engine 200 can be output to the outlet end of the fuel filtering unit 153 through the return pipe 157 and circularly input to the engine 200 through the oil inlet pipe 156 again for the engine 200.
In this way, the fuel output from the main fuel tank 110 can pass through the fuel filtering unit 153 to filter moisture and impurities in the fuel, and the filtered fuel is input to the oil inlet 210 of the engine 200 through the oil inlet pipe 156, and because the oil pumped by the oil pump of the engine 200 is far greater than the oil consumption of the engine 200, the redundant fuel in the engine 200 can be output from the oil outlet 220 of the engine 200 to the outlet end of the fuel filtering unit 153 through the oil return pipe 157, and then the filtered fuel is circularly input into the engine 200 through the oil inlet pipe 156 for the engine 200 again, so that the filtered fuel is prevented from being repeatedly filtered due to the fact that the filtered fuel returns to the main fuel tank 110, and the service life of the fuel filtering unit 153 is prolonged.
The present application also provides a control method of the oil supply system 100, including the following steps:
s110: acquiring the liquid level of the main oil tank 110 through the first liquid level detection unit, and delivering gas to the auxiliary oil tank 120 when the liquid level of the main oil tank 110 is lower than a preset minimum liquid level value so that fuel in the auxiliary oil tank 120 flows into the main oil tank 110 under the action of air pressure; when the liquid level of the main tank 110 is higher than the preset maximum liquid level value, the delivery of the gas to the sub-tank 120 is stopped.
In some embodiments, the step S110 specifically includes the following steps:
the fuel in the main fuel tank 110 is sequentially input to the engine 200 through a pipeline, a fuel filtering unit 153 and an oil inlet pipe 156, the first liquid level detection unit is connected to the control unit 140 in a communication manner and detects the fuel liquid level in the main fuel tank 110 to send a first liquid level signal to the control unit 140, when the first liquid level signal of the main fuel tank 110 is lower than a preset minimum liquid level value, the control unit 140 controls the air inlet electromagnetic valve 131 to be opened, and the air supply module 130 supplies air to the auxiliary fuel tank 120 so that the fuel in the auxiliary fuel tank 120 flows into the main fuel tank 110 under the action of air pressure; when the first liquid level signal of the main tank 110 is higher than the preset maximum liquid level value, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub-tank 120.
S120: acquiring the air pressure in the auxiliary oil tank 120 through the pressure monitoring unit 154, and stopping delivering air to the auxiliary oil tank 120 when the air pressure value in the auxiliary oil tank 120 is higher than a preset maximum air pressure value; when the air pressure value in the sub-tank 120 is lower than the preset minimum air pressure, air is delivered to the sub-tank 120.
In some embodiments, the step S120 specifically includes the following steps:
after delivering gas to the sub-tank 120 so that the fuel in the sub-tank 120 flows into the main tank 120 under the action of the air pressure, the pressure monitoring unit 154 is communicatively connected to the control unit 140 and monitors the air pressure in the sub-tank 120 to send an air pressure signal to the control unit 140, and when the air pressure value in the sub-tank 120 is lower than a preset minimum air pressure, the control unit 140 controls the air inlet solenoid valve 131 to open, and the air supply module 130 supplies air to the sub-tank 120 so that the fuel in the sub-tank 120 flows into the main tank 110 under the action of the air pressure; when the air pressure value in the sub-tank 120 is higher than the preset maximum air pressure value, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub-tank 120.
In a preferred control method, the method further includes step S130: acquiring the liquid level in the auxiliary fuel tank 120 through a second liquid level detection unit, wherein the second liquid level detection unit is in communication connection with the control unit 140 and detects the liquid level of the fuel in the auxiliary fuel tank 120 so as to send a second liquid level signal to the control unit 140, and when the second liquid level signal of the auxiliary fuel tank 120 is not zero, i.e. the auxiliary fuel tank 120 is filled with fuel, the control unit 140 controls the air inlet electromagnetic valve 131 to be opened, and the air supply module 130 supplies air to the auxiliary fuel tank 120 so that the fuel in the auxiliary fuel tank 120 flows into the main fuel tank 110 under the action of air pressure; when the second liquid level signal of the sub tank 120 is zero, that is, when there is no fuel in the sub tank 120, the control unit 140 controls the air intake solenoid valve 131 to be closed, and the air supply module 130 stops supplying air to the sub tank 120.
Accordingly, the present application provides an oil supply system 100 in which a main tank 110 is connected in series with a sub-tank 120 through an oil guide pipe 155, a fuel level in the main tank 110 and a fuel level and a pressure value in the sub-tank 120 are monitored in real time through a first liquid level detecting unit, a second liquid level detecting unit, and a pressure monitoring unit 154 which are communicatively connected to a control unit 140, the sub-tank 120 is supplied with air by an air supply module 130 under the control of the control unit 140 so that fuel in the sub-tank 120 flows into the main tank 110 under the action of the air pressure, the air in the sub-tank 120 is discharged to the atmospheric pressure when the pressure value in the sub-tank 120 is higher than a preset maximum air pressure value through an air discharge solenoid valve 152, the fuel outputted from the main tank 110 is filtered through a fuel filtering unit 153 and the filtered fuel is inputted into an engine 200 for the engine 200, the air outputted from a gas storage unit 133 is filtered through an air filter 132 and the filtered air is inputted into the sub-tank 120 to change the air pressure of the sub-tank 120, and the filtered fuel is circulated into the engine 200 through an oil feed pipe 156 and an oil return pipe 157 to increase the service life of the hot oil filtering unit 153. In this way, the air supply unit 130 and the control unit 140 which are in communication connection can automatically transfer the fuel in the auxiliary fuel tank 120 into the main fuel tank 110 to supply the fuel to the engine 200, so that the operation is convenient.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. An oil supply system connected to an engine to supply oil to the engine, the oil supply system comprising:
the main oil tank is used for connecting the engine;
the auxiliary oil tank is connected with the main oil tank through a pipeline;
the air supply module is connected with the auxiliary oil tank through a pipeline;
the control unit is in communication connection with the air supply module, the air supply module supplies air to the auxiliary oil tank under the control of the control unit so as to change the air pressure in the auxiliary oil tank, and fuel in the auxiliary oil tank can enter the main oil tank under the action of the air pressure;
the pressure monitoring unit is arranged on the auxiliary oil tank and is in communication connection with the control unit, and the pressure monitoring unit is used for monitoring the pressure in the auxiliary oil tank and sending a pressure signal to the control unit; the control unit controls the air supply module to supply air to the auxiliary oil tank according to the pressure signal; and
the first liquid level detection unit is arranged on the main oil tank and is connected with the control unit in a communication manner and is used for monitoring the liquid level in the main oil tank and sending a first liquid level signal to the control unit; the control unit controls the air supply module to supply air to the auxiliary oil tank according to the first liquid level signal;
the second liquid level monitoring unit is arranged in the auxiliary oil tank and is in communication connection with the control unit, and is used for monitoring the liquid level in the auxiliary oil tank and sending a second liquid level signal to the control unit, and the control unit controls the air supply module to stop supplying air to the auxiliary oil tank according to the second liquid level signal.
2. The oil supply system of claim 1, further comprising a display communicatively coupled to the control unit.
3. The oil supply system according to claim 1, wherein the air supply module comprises an air storage unit, an air filter and an air inlet electromagnetic valve which are sequentially connected, an air outlet end of the air inlet electromagnetic valve is connected to the auxiliary oil tank through a pipeline, the air inlet electromagnetic valve is in communication connection with the control unit, and the air inlet electromagnetic valve is opened or closed under the control of the control unit.
4. The oil supply system according to claim 1, further comprising a vent solenoid valve connected to the secondary oil tank by a pipe and communicatively connected to the control unit, the vent solenoid valve being opened or closed under the control of the control unit to vent gas in the secondary oil tank.
5. The fuel supply system according to claim 1, further comprising a fuel filter unit connected to the liquid outlet end of the main tank by a pipe for filtering moisture and impurities in the fuel.
6. The fuel supply system of claim 5, further comprising an inlet pipe and an oil return pipe, wherein an inlet end of the inlet pipe is connected to an outlet end of the fuel filter unit, and an outlet end of the oil return pipe is connected to an inlet end of the inlet pipe.
7. A control method of an oil supply system according to any one of claims 1 to 6, comprising the steps of:
acquiring the liquid level of the main oil tank;
when the liquid level of the main oil tank is lower than a preset minimum liquid level value, delivering gas to the auxiliary oil tank so that fuel in the auxiliary oil tank flows into the main oil tank under the action of air pressure;
and stopping conveying the gas to the auxiliary oil tank when the liquid level of the main oil tank is higher than a preset maximum liquid level value.
8. The control method according to claim 7, characterized by further comprising, after the step of delivering gas to the secondary fuel tank to cause fuel in the secondary fuel tank to flow into the main fuel tank under the action of air pressure, the steps of:
acquiring the air pressure in the auxiliary oil tank, and stopping conveying air to the auxiliary oil tank when the air pressure value in the auxiliary oil tank is higher than a preset maximum air pressure value;
and when the air pressure value in the auxiliary oil tank is lower than the preset minimum air pressure, conveying air to the auxiliary oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210002825.1A CN114290895B (en) | 2022-01-04 | 2022-01-04 | Oil supply system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210002825.1A CN114290895B (en) | 2022-01-04 | 2022-01-04 | Oil supply system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114290895A CN114290895A (en) | 2022-04-08 |
| CN114290895B true CN114290895B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210002825.1A Active CN114290895B (en) | 2022-01-04 | 2022-01-04 | Oil supply system and control method thereof |
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| CN (1) | CN114290895B (en) |
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| EP3741984A1 (en) * | 2019-05-22 | 2020-11-25 | Liebherr Machines Bulle SA | Pressurized tank system for supplying gases |
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| CN213838781U (en) * | 2020-11-19 | 2021-07-30 | 张祥通 | Oil circuit control system of fuel oil type air compressor |
| CN112594233A (en) * | 2020-11-27 | 2021-04-02 | 中冶宝钢技术服务有限公司 | Pressure boost oil feeding system |
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| CN113775449A (en) * | 2021-08-30 | 2021-12-10 | 东风越野车有限公司 | Oil supply system of diesel engine |
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|---|---|
| CN114290895A (en) | 2022-04-08 |
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