阅读说明：本技术 节能型发动机油底壳及其油量调节方法 (Energy-saving engine oil sump and oil quantity adjusting method thereof ) 是由 贺亚玲 余国强 陈林 洪志刚 代超群 曾思思 高昂 叶建平 张国波 尹传龙 李文 于 2021-07-21 设计创作，主要内容包括：本发明涉及发动机润滑系统技术领域,公开了一种节能型发动机油底壳,包括工作油腔,还包括补偿油腔,补偿油腔通过联通腔与工作油腔联通,联通腔内设有电磁阀,电磁阀径向与联通腔密封,电磁阀的两端分别与工作油腔和补偿油腔联通,发动机的主油道内设有机油温度传感器,机油温度传感器和电磁阀均与发动机ECU连接。本发明还公开了一种节能型发动机油底壳的油量调节方法。本发明节能型发动机油底壳及其油量调节方法,通过油底壳油量调节控制实现了节能。(The invention relates to the technical field of engine lubricating systems, and discloses an energy-saving engine oil pan which comprises a working oil cavity and a compensation oil cavity, wherein the compensation oil cavity is communicated with the working oil cavity through a communicating cavity, an electromagnetic valve is arranged in the communicating cavity, the electromagnetic valve is radially sealed with the communicating cavity, two ends of the electromagnetic valve are respectively communicated with the working oil cavity and the compensation oil cavity, an engine oil temperature sensor is arranged in a main oil duct of an engine, and the engine oil temperature sensor and the electromagnetic valve are both connected with an engine ECU (electronic control Unit). The invention also discloses an oil quantity adjusting method of the oil pan of the energy-saving engine. The energy-saving engine oil sump and the oil quantity adjusting method thereof realize energy saving through oil quantity adjusting control of the oil sump.)

1. An energy-saving engine oil pan comprises a working oil cavity (1), and is characterized in that: still include compensation oil pocket (2), compensation oil pocket (2) through UNICOM chamber (3) with working oil pocket (1) UNICOM, be equipped with solenoid valve (4) in UNICOM chamber (3), solenoid valve (4) radially with UNICOM chamber (3) are sealed, the both ends of solenoid valve (4) respectively with working oil pocket (1) and compensation oil pocket (2) UNICOM establish in the main oil duct of engine has oil temperature sensor (5), oil temperature sensor (5) and solenoid valve (4) all are connected with engine ECU (6).

2. The energy efficient engine oil pan of claim 1, wherein: a liquid level sensor (7) is arranged in the working oil cavity (1), and the liquid level sensor (7) is connected with the engine ECU (6).

3. The energy efficient engine oil pan of claim 1, wherein: the working oil cavity (1) and the compensation oil cavity (2) are distributed left and right.

4. An oil quantity adjusting method for an energy-saving engine oil pan according to claim 1, characterized in that: the engine ECU (6) acquires oil level information of the oil pan through the oil level sensor (7), acquires the temperature of the main oil duct oil through the oil temperature sensor (5), and after analyzing and processing the temperature of the main oil duct oil and the oil level information of the oil pan, the engine ECU (6) sends a switch instruction to the electromagnetic valve (4) to control the oil quantity of the working oil cavity (1), when the engine is operated by a heat engine and the temperature of the oil does not reach a set value, the electromagnetic valve (4) keeps a closed state, and only the oil in the working oil cavity (1) participates in lubricating and cooling the engine; in the running process of an engine, when the temperature of engine oil reaches a set value, the engine ECU (6) controls the electromagnetic valve (4) to be opened according to the information of the engine oil temperature sensor (5), and after the electromagnetic valve (4) is opened, the working oil cavity (1) is communicated with the compensation oil cavity (2) to participate in the lubrication and cooling of the engine together, so that the temperature of the engine oil is reduced; and after the temperature of the engine oil is lower than a set value, the engine ECU (6) controls the electromagnetic valve (4) to be closed according to the information of the engine oil temperature sensor (5), the working oil cavity (1) is not communicated with the compensation oil cavity (2), and only the engine oil in the working oil cavity (1) participates in the lubricating and cooling of the engine.

5. The oil amount adjusting method of the energy-saving engine oil pan according to claim 4, characterized in that: a liquid level sensor (7) is arranged in the working oil cavity (1), the liquid level sensor (7) is connected with the engine ECU (6), when the engine oil liquid level of the working oil cavity (1) is higher than the highest liquid level, the engine ECU (6) controls the opening of the electromagnetic valve (4) according to the information of the liquid level sensor (7), the electromagnetic valve (4) is opened, the working oil cavity (1) is communicated with the compensation oil cavity (2), the working oil cavity (1) divides the oil volume to the compensation oil cavity (2), and the liquid level in the working oil cavity (1) is prevented from being too high; when the engine oil liquid level of the working oil cavity (1) is lower than the lowest liquid level, the engine ECU (6) controls the electromagnetic valve (4) to be opened according to the information of the liquid level sensor (7), the electromagnetic valve (4) is opened, the compensation oil cavity (2) is communicated with the working oil cavity (1), and the oil quantity is supplemented to the working oil cavity (1).

Technical Field

The invention relates to the technical field of engine lubricating systems, in particular to an energy-saving engine oil pan and an oil quantity adjusting method thereof.

Background

The main function of oil pan is the storage machine oil and seals the crankcase, prevents that impurity from getting into to collect and store the machine oil that flows back by each friction pair surface of engine, dispel partial heat, prevent that machine oil from splashing, reduce the oxidation. The shape and size of the oil pan depends on the overall arrangement of the engine, the amount of oil required, and the overall dimensional requirements of the vehicle for the engine.

Current industry oil pan technique is mainly focused on satisfying in the oil yield of engine oil and the space arrangement aspect. Along with the development of the engine oil technology, the engine oil capacity of the oil pan is continuously increased, the mileage of engine oil replacement is prolonged, and the engine oil consumption is saved. But the oil mass increase is unfavorable for the quick warm-up of engine, and it is fast because of the many heat dissipations of oil mass in the oil pan in the engine working process moreover, causes the engine consumption big, is unfavorable for energy-conservation.

In addition, the oil quantity is increased, the volume of the oil bottom shell is continuously increased, the oil bottom shell is limited by the arrangement space of the whole vehicle and the oil absorption condition of the oil quantity in various road conditions of the vehicle, the design technical difficulty of the oil bottom shell is increased, the structure is more complex, the oil quantity regulation is realized at the oil bottom shell, and the oil bottom shell is a technical problem and still blank in the aspect of realizing the energy-saving technology through the oil bottom shell oil quantity regulation control at the present stage.

Chinese patent (publication No. 03/19/2021, publication No. CN112523834A) discloses an engine oil pan, comprising: the oil baffle plate is fixed in the inner cavity of the shell of the engine oil pan, the inner cavity of the shell is divided into a shell large-end area and a shell small-end area, and most of lubricating oil can be blocked in the shell large-end area by the oil baffle plate, so that the oil suction port can suck oil when the engine oil pan is in an inclined state; the first conduit end of the conduit is fixedly connected with the through hole formed in the oil baffle plate, the first conduit end is provided with a one-way valve enabling lubricating oil to pass through in a one-way mode, and the second conduit end of the conduit extends to the bottom of the large head area of the shell, so that the conduit can enable the lubricating oil in the small head area of the shell to be led into the large head area of the shell through the one-way valve. However, the invention only realizes that the oil quantity of the oil pan in an inclined state meets the oil absorption condition in the running process of the vehicle, and how to realize energy conservation through oil quantity regulation control of the oil pan is not realized.

Disclosure of Invention

The invention aims to provide an oil pan of an energy-saving engine and an oil quantity adjusting method thereof, aiming at the defects of the technology, and energy conservation is realized through oil quantity adjusting control of the oil pan.

In order to achieve the purpose, the energy-saving engine oil pan designed by the invention comprises a working oil cavity and a compensation oil cavity, wherein the compensation oil cavity is communicated with the working oil cavity through a communicating cavity, an electromagnetic valve is arranged in the communicating cavity, the electromagnetic valve is radially sealed with the communicating cavity, two ends of the electromagnetic valve are respectively communicated with the working oil cavity and the compensation oil cavity, an engine oil temperature sensor is arranged in a main oil duct of the engine, and the engine oil temperature sensor and the electromagnetic valve are both connected with an engine ECU (electronic control Unit).

Preferably, a liquid level sensor is arranged in the working oil cavity and connected with the engine ECU.

Preferably, the working oil chamber and the compensation oil chamber are distributed left and right.

The oil quantity adjusting method of the energy-saving engine oil pan is characterized in that the engine ECU acquires oil level information of the oil pan through the liquid level sensor, acquires the temperature of the main oil gallery oil through the oil temperature sensor, and sends a switch instruction to the electromagnetic valve to control the oil quantity of the working oil cavity after analyzing and processing the temperature of the main oil gallery oil and the oil level information of the oil pan; in the running process of the engine, when the temperature of engine oil reaches a set value, the engine ECU controls the opening of the electromagnetic valve according to the information of the engine oil temperature sensor, and after the electromagnetic valve is opened, the working oil cavity is communicated with the compensation oil cavity to participate in the lubrication and cooling of the engine together, so that the temperature of the engine oil is reduced; and after the temperature of the engine oil is lower than a set value, the engine ECU controls the electromagnetic valve to be closed according to the information of the engine oil temperature sensor, the working oil cavity is not communicated with the compensation oil cavity, and only the engine oil in the working oil cavity participates in the lubricating and cooling of the engine.

Preferably, a liquid level sensor is arranged in the working oil cavity and connected with the engine ECU, when the engine oil level of the working oil cavity is higher than the highest liquid level, the engine ECU controls the electromagnetic valve to be opened according to the information of the liquid level sensor, the electromagnetic valve is opened, the working oil cavity is communicated with the compensation oil cavity, the working oil cavity shunts oil to the compensation oil cavity, and the liquid level in the working oil cavity is prevented from being too high; when the engine oil level of the working oil cavity is lower than the lowest liquid level, the engine ECU controls the electromagnetic valve to be opened according to the information of the liquid level sensor, the electromagnetic valve is opened, the compensation oil cavity is communicated with the working oil cavity, and the oil quantity is supplemented to the working oil cavity.

Compared with the prior art, the invention has the following advantages:

1. when the engine runs in a heat engine mode, the engine oil in the working oil cavity is controlled to provide lubrication for the engine, so that excessive engine oil is reduced to participate in lubrication and cooling, excessive heat is taken away, power consumption loss of the engine is reduced, and quick warm-up is facilitated;

2. under the operating condition of the engine, the cooling and lubricating oil quantity in the oil pan can be adjusted under the condition of meeting the temperature of engine oil, so that the heat loss is reduced, and the fuel economy is improved.

Drawings

FIG. 1 is a schematic structural diagram of an oil pan of an energy-saving engine according to the present invention;

FIG. 2 is a schematic connection diagram of the electromagnetic valve, the engine oil temperature sensor, the engine ECU and the liquid level sensor in the oil pan of the energy-saving engine of the invention.

The components in the figures are numbered as follows:

working oil cavity 1, compensation oil cavity 2, communicating cavity 3, electromagnetic valve 4, engine oil temperature sensor 5, engine ECU6 and liquid level sensor 7.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 and 2, the energy-saving engine oil pan comprises a working oil cavity 1 and a compensation oil cavity 2, wherein the compensation oil cavity 2 is communicated with the working oil cavity 1 through a communicating cavity 3, an electromagnetic valve 4 is arranged in the communicating cavity 3, the electromagnetic valve 4 is radially sealed with the communicating cavity 3, two ends of the electromagnetic valve 4 are respectively communicated with the working oil cavity 1 and the compensation oil cavity 2, an engine oil temperature sensor 5 is arranged in a main oil duct of an engine, and the engine oil temperature sensor 5 and the electromagnetic valve 4 are both connected with an engine ECU 6.

In addition, a liquid level sensor 7 is arranged in the working oil chamber 1, and the liquid level sensor 7 is connected with an engine ECU 6.

In this embodiment, the working oil chamber 1 and the compensation oil chamber 2 are distributed left and right.

The oil quantity adjusting method of the energy-saving engine oil pan comprises the following steps that the engine ECU6 acquires oil level information of the oil pan through the liquid level sensor 7, acquires the temperature of main oil gallery oil through the oil temperature sensor 5, and after the temperature of the main oil gallery oil and the oil level information of the oil pan are analyzed, the engine ECU6 sends a switch instruction to the electromagnetic valve 4 to control the oil quantity of the working oil cavity 1, and the specific working conditions are as follows:

when the engine is in heat engine operation, when the temperature of the engine oil does not reach a set value, the electromagnetic valve 4 keeps a closed state, and only the engine oil in the working oil cavity 1 participates in lubricating and cooling the engine.

In the running process of the engine, when the temperature of engine oil reaches a set value, the engine ECU6 controls the opening of the electromagnetic valve 4 according to the information of the engine oil temperature sensor 5, and after the electromagnetic valve 4 is opened, the working oil cavity 1 is communicated with the compensation oil cavity 2 to participate in the lubrication and cooling of the engine together, so that the temperature of the engine oil is reduced; when the temperature of the engine oil is lower than the set value, the engine ECU6 controls the electromagnetic valve 4 to close according to the information of the engine oil temperature sensor 5, the working oil cavity 1 is not communicated with the compensation oil cavity 2, and only the engine oil in the working oil cavity 1 participates in the lubricating and cooling of the engine.

When the engine oil liquid level of the working oil cavity 1 is higher than the highest liquid level, the engine ECU6 controls the electromagnetic valve 4 to be opened according to the information of the liquid level sensor 7, the electromagnetic valve 4 is opened, the working oil cavity 1 is communicated with the compensation oil cavity 2, and the working oil cavity 1 branches the oil quantity to the compensation oil cavity 2 to prevent the liquid level in the working oil cavity 1 from being too high.

When the engine oil level of the working oil cavity 1 is lower than the lowest liquid level, the engine ECU6 controls the electromagnetic valve 4 to be opened according to the information of the liquid level sensor 7, the electromagnetic valve 4 is opened, the compensation oil cavity 2 is communicated with the working oil cavity 1, and the oil quantity is supplemented to the working oil cavity 1.

According to the energy-saving engine oil pan and the oil quantity adjusting method thereof, when the engine is in heat engine operation, the engine oil in the working oil cavity 1 is controlled to provide lubrication for the engine, so that excessive engine oil is reduced to participate in lubrication and cooling, excessive heat is taken away, the power consumption loss of the engine is reduced, and the quick warm-up is favorably realized; under the operating condition of the engine, the oil quantity participating in cooling and lubricating in the oil pan can be adjusted under the condition of meeting the temperature of engine oil, so that the heat loss is reduced, and the fuel economy is improved.