阅读说明：本技术 一种发动机窜油量的控制装置 (Control device for oil channeling amount of engine ) 是由 柴洪磊 陈玮 王润身 姚德新 于 2021-07-29 设计创作，主要内容包括：本发明提供一种发动机窜油量的控制装置,包括：第一抽送设备、第二抽送设备、驱动装置、第一管路、第二管路、第三管路和第四管路。所述第一抽送设备通过所述第一管路与汽车油底壳相连通,所述第一抽送设备通过所述第二管路与汽车进气歧管相连通。所述第二抽送设备通过所述第三管路与汽车油底壳相连通,所述第二抽送设备通过所述第四管路与汽车进气歧管相连通。所述驱动装置分别与所述第一抽送设备和所述第二抽送设备传动连接,用于驱动所述第一抽送设备和所述第二抽送设备进行交替抽取或推送油液,并使所述第一抽送设备和所述第二抽送设备对汽车进气歧管交替推送油液。本发明能提高发动机窜油量的控制精度,降低试验成本,提高试验效率。(The invention provides a control device for the oil leakage of an engine, which comprises: the device comprises a first pumping device, a second pumping device, a driving device, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline. The first pumping equipment is communicated with an automobile oil pan through the first pipeline, and the first pumping equipment is communicated with an automobile intake manifold through the second pipeline. The second pumping equipment is communicated with the automobile oil pan through the third pipeline, and the second pumping equipment is communicated with the automobile intake manifold through the fourth pipeline. The driving device is in transmission connection with the first pumping equipment and the second pumping equipment respectively and is used for driving the first pumping equipment and the second pumping equipment to alternately pump or push oil, and the first pumping equipment and the second pumping equipment are used for alternately pushing the oil to an automobile intake manifold. The invention can improve the control precision of the oil leakage quantity of the engine, reduce the test cost and improve the test efficiency.)

1. An apparatus for controlling a blow-by amount of an engine, comprising: the device comprises a first pumping device, a second pumping device, a driving device, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline;

the first pumping equipment is communicated with an oil pan of the automobile through the first pipeline, and the first pumping equipment is communicated with an air inlet manifold of the automobile through the second pipeline;

the second pumping equipment is communicated with an oil pan of the automobile through the third pipeline, and the second pumping equipment is communicated with an air inlet manifold of the automobile through the fourth pipeline;

the driving device is in transmission connection with the first pumping equipment and the second pumping equipment respectively and is used for driving the first pumping equipment and the second pumping equipment to alternately pump or push oil, and the first pumping equipment and the second pumping equipment are used for alternately pushing the oil to an automobile intake manifold.

2. The apparatus for controlling the amount of blow-by in an engine according to claim 1, characterized by further comprising: the control system comprises a controller, a first control valve, a second control valve, a third control valve and a fourth control valve;

a first control valve is arranged on the first pipeline, a second control valve is arranged on the second pipeline, a third control valve is arranged on the third pipeline, and a fourth control valve is arranged on the fourth pipeline;

the controller is respectively in signal connection with the first control valve, the second control valve, the third control valve and the fourth control valve so as to control the connection or disconnection of the first pipeline, the second pipeline, the third pipeline and/or the fourth pipeline.

3. The apparatus for controlling the amount of blow-by gas in an engine according to claim 2, wherein said first pumping device and said second pumping device are of a piston-type syringe structure.

4. The apparatus for controlling a blowby amount of an engine according to claim 3, wherein said first pumping device comprises: a first piston and a first syringe;

the first piston is arranged in the first injection tube and forms a first extraction cavity with the inner wall of the first injection tube, and the first injection tube is respectively communicated with the first pipeline and the second pipeline;

when the first piston performs extraction motion along the first injection cylinder, the first extraction cavity performs oil extraction through the first pipeline;

when the first piston moves along the first injection cylinder in a pushing mode, the first extraction cavity pushes oil through the second pipeline.

5. The apparatus for controlling a blowby amount of an engine according to claim 4, wherein said second pumping device comprises: a second piston and a second syringe;

the second piston is arranged in the second injection cylinder and forms a second extraction cavity with the inner wall of the second injection cylinder, and the second injection cylinder is respectively communicated with the third pipeline and the fourth pipeline;

when the second piston performs extraction motion along the second injection cylinder, the second extraction cavity performs oil extraction through the third pipeline;

when the second piston moves along the second injection cylinder in a pushing mode, the second extraction cavity pushes oil through the fourth pipeline.

6. The apparatus for controlling the amount of blowby oil in an engine according to claim 5, wherein said drive means comprises: a driving motor and an eccentric wheel;

two ends of the eccentric wheel are respectively connected with piston rods of the first pumping equipment and the second pumping equipment;

the driving motor is in transmission connection with the eccentric wheel and is in signal connection with the controller and used for driving the eccentric wheel to rotate so as to enable the first pumping equipment and the second pumping equipment to reciprocate.

7. The apparatus for controlling the amount of blow-by in an engine according to claim 6, characterized by further comprising: touching a mould screen;

the touch screen is in signal connection with the controller and is used for setting an interactive human-computer operation interface so as to realize human-computer interaction between an operator and the controller.

8. The apparatus for controlling the amount of blow-by oil in an engine according to claim 7, wherein one end of the first pipe is communicated with one end of the third pipe through a three-way valve, the other end of the first pipe is communicated with one end of the second pipe through a three-way valve, one end of the fourth pipe is communicated with the other end of the second pipe through a three-way valve, and the other end of the fourth pipe is communicated with the other end of the third pipe through a three-way valve.

9. The apparatus for controlling a blowby amount of an engine according to claim 8, wherein the controller synchronously controls the first control valve and the fourth control valve to be turned on or off and synchronously controls the second control valve and the third control valve to be turned off or on when the first pumping device and the second pumping device perform reciprocating motions, so that the second pumping device performs a pumping motion when the first pumping device performs a pumping motion, or the second pumping device performs a pumping motion when the first pumping device performs a pumping motion.

10. The apparatus for controlling the amount of blow-by oil in an engine according to claim 9, wherein the controller is a PLC controller or a microprocessor.

Technical Field

The invention relates to the technical field of automobile auxiliary equipment, in particular to a device for controlling the oil channeling amount of an engine.

Background

The direct injection supercharged engine is easy to generate super detonation under low-speed and high torque, and when the super detonation occurs, the peak pressure in a cylinder can even exceed 100bar, so that the direct injection supercharged engine has great harm to the engine and can instantaneously damage the engine under extreme conditions. Research shows that super detonation is generated when lubricating oil drops enter a combustion chamber, the lubricating oil drops enter the combustion chamber to be mixed with gasoline, carbon deposition temperature in the combustion chamber is high, a heat source is provided, mixed gas is ignited in advance, and super detonation is generated. Therefore, according to the influence factors of the super detonation, the occurrence frequency and the distinctiveness of the super detonation are increased by improving the oil channeling amount of the engine, so that the difference of the super detonation is verified. In the existing super detonation difference testing method, compressed air is mainly introduced into a crankcase, so that the air leakage of an engine piston is increased, and the oil leakage of the engine is finally improved. In the method, the stability of the air source pressure is not high enough, so that the oil leakage quantity fluctuates, and the test precision is influenced. Therefore, how to provide a device capable of accurately improving the oil leakage amount of the engine for evaluating the super-knock suppression effect of a developed product has important significance.

Disclosure of Invention

The invention provides a device for controlling the oil fleeing amount of an engine, which solves the problem of large fluctuation of the control on the oil fleeing amount of the engine in the existing super detonation difference test, and can improve the control precision of the oil fleeing amount of the engine, reduce the test cost and improve the test efficiency.

In order to achieve the above purpose, the invention provides the following technical scheme:

an engine blow-by amount control device comprising: the device comprises a first pumping device, a second pumping device, a driving device, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline;

the first pumping equipment is communicated with an oil pan of the automobile through the first pipeline, and the first pumping equipment is communicated with an air inlet manifold of the automobile through the second pipeline;

the second pumping equipment is communicated with an oil pan of the automobile through the third pipeline, and the second pumping equipment is communicated with an air inlet manifold of the automobile through the fourth pipeline;

the driving device is in transmission connection with the first pumping equipment and the second pumping equipment respectively and is used for driving the first pumping equipment and the second pumping equipment to alternately pump or push oil, and the first pumping equipment and the second pumping equipment are used for alternately pushing the oil to an automobile intake manifold.

Preferably, the method further comprises the following steps: the control system comprises a controller, a first control valve, a second control valve, a third control valve and a fourth control valve;

a first control valve is arranged on the first pipeline, a second control valve is arranged on the second pipeline, a third control valve is arranged on the third pipeline, and a fourth control valve is arranged on the fourth pipeline;

the controller is respectively in signal connection with the first control valve, the second control valve, the third control valve and the fourth control valve so as to control the connection or disconnection of the first pipeline, the second pipeline, the third pipeline and/or the fourth pipeline.

Preferably, the first and second pumping devices are of a piston-type syringe configuration.

Preferably, the first pumping device comprises: a first piston and a first syringe;

the first piston is arranged in the first injection tube and forms a first extraction cavity with the inner wall of the first injection tube, and the first injection tube is respectively communicated with the first pipeline and the second pipeline;

when the first piston performs extraction motion along the first injection cylinder, the first extraction cavity performs oil extraction through the first pipeline;

when the first piston moves along the first injection cylinder in a pushing mode, the first extraction cavity pushes oil through the second pipeline.

Preferably, the second pumping device comprises: a second piston and a second syringe;

the second piston is arranged in the second injection cylinder and forms a second extraction cavity with the inner wall of the second injection cylinder, and the second injection cylinder is respectively communicated with the third pipeline and the fourth pipeline;

when the second piston performs extraction motion along the second injection cylinder, the second extraction cavity performs oil extraction through the third pipeline;

when the second piston moves along the second injection cylinder in a pushing mode, the second extraction cavity pushes oil through the fourth pipeline.

Preferably, the driving means includes: a driving motor and an eccentric wheel;

two ends of the eccentric wheel are respectively connected with piston rods of the first pumping equipment and the second pumping equipment;

the driving motor is in transmission connection with the eccentric wheel and is in signal connection with the controller and used for driving the eccentric wheel to rotate so as to enable the first pumping equipment and the second pumping equipment to reciprocate.

Preferably, the method further comprises the following steps: touching a mould screen;

the touch screen is in signal connection with the controller and is used for setting an interactive human-computer operation interface so as to realize human-computer interaction between an operator and the controller.

Preferably, one end of the first pipeline is communicated with one end of the third pipeline through a three-way valve, the other end of the first pipeline is communicated with one end of the second pipeline through a three-way valve, one end of the fourth pipeline is communicated with the other end of the second pipeline through a three-way valve, and the other end of the fourth pipeline is communicated with the other end of the third pipeline through a three-way valve.

Preferably, when the first pumping device and the second pumping device perform reciprocating motion, the controller synchronously controls the first control valve and the fourth control valve to be switched on or switched off, and synchronously controls the second control valve and the third control valve to be switched off or switched on, so that the second pumping device performs pushing motion when the first pumping device performs pumping motion, or the second pumping device performs pumping motion when the first pumping device performs pushing motion.

Preferably, the controller is a PLC controller or a microprocessor.

The invention provides a control device for the oil fleeing amount of an engine, wherein a first pumping device and a second pumping device are driven by a driving device to directly and continuously pump oil from an oil pan at a constant speed according to the setting of test requirements and further convey the oil to an air inlet manifold, so that the problem of large fluctuation of the control on the oil fleeing amount of the engine in the existing super detonation difference test is solved, the control precision of the oil fleeing amount of the engine can be improved, the test cost is reduced, and the test efficiency is improved.

Drawings

In order to more clearly describe the specific embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below.

Fig. 1 is a schematic diagram of a device for controlling the amount of oil bleeding of an engine according to the present invention.

Detailed Description

In order to make the technical field of the invention better understand the scheme of the embodiment of the invention, the embodiment of the invention is further described in detail with reference to the drawings and the implementation mode.

In order to research experiments that the generation of super detonation is related to the lubricating oil drops entering a combustion chamber, the super detonation frequency in the test process is improved to realize the evaluation of the differences of the super detonation of the special engine oil and the additive so as to distinguish the differences of different products. The method aims at solving the problem that the fluctuation of the oil blow-by amount control of the engine is large when the difference test is carried out at present. The invention provides a control device for the oil fleeing amount of an engine, wherein a first pumping device and a second pumping device are driven by a driving device to directly and continuously pump oil from an oil pan at a constant speed according to the setting of test requirements and further convey the oil to an air inlet manifold, so that the problem of large fluctuation of the control on the oil fleeing amount of the engine in the existing super detonation difference test is solved, the control precision of the oil fleeing amount of the engine can be improved, the test cost is reduced, and the test efficiency is improved.

As shown in fig. 1, a device for controlling the amount of oil bleeding from an engine includes: a first pumping device 1, a second pumping device 2, a drive 3, a first line 4, a second line 5, a third line 6 and a fourth line 7. The first pumping equipment 1 is communicated with an automobile oil pan through the first pipeline 4, and the first pumping equipment 1 is communicated with an automobile intake manifold through the second pipeline 5. The second pumping equipment 2 is communicated with an oil pan of the automobile through the third pipeline 6, and the second pumping equipment 2 is communicated with an air inlet manifold of the automobile through the fourth pipeline 7. And the driving device 3 is in transmission connection with the first pumping equipment 1 and the second pumping equipment 2 respectively and is used for driving the first pumping equipment and the second pumping equipment to alternately pump or push oil, and the first pumping equipment and the second pumping equipment are used for alternately pushing the oil to an automobile intake manifold.

Specifically, first pumping equipment and second pumping equipment are linked together through pipeline and intake manifold and oil pan respectively, and drive arrangement control first pumping equipment and second pumping equipment extract or the propelling movement fluid in turn, and when first pumping equipment extracted the fluid in the oil pan through first pipeline, the second pumping equipment carried out the fluid propelling movement to intake manifold through the fourth pipeline promptly, and correspondingly, the second pumping equipment carried out the fluid extraction when first pumping equipment carried out the fluid propelling movement. The oil in the oil bottom shell is uniformly and continuously sprayed into the air inlet manifold by the driving device for the first pumping device and the second pumping device, and then enters the combustion chamber along with air to participate in combustion, so that the effect of improving the oil channeling quantity of the engine can be realized.

The device also includes: a controller, a first control valve 8, a second control valve 9, a third control valve 10 and a fourth control valve 11. A first control valve 8 is arranged on the first line 4, a second control valve 9 on the second line 5, a third control valve 10 on the third line 6 and a fourth control valve 11 on the fourth line 7. The controller is respectively in signal connection with the first control valve 8, the second control valve 9, the third control valve 10 and the fourth control valve 11 to control the connection or disconnection of the first pipeline, the second pipeline, the third pipeline and/or the fourth pipeline.

Further, the first pumping device and the second pumping device adopt a piston-type syringe structure.

As shown in fig. 1, the first pumping device 1 includes: a first piston 11 and a first syringe 12. The first piston 11 is arranged in the first injection cylinder 12, and forms a first extraction cavity with the inner wall of the first injection cylinder 12, and the first injection cylinder 12 is respectively communicated with the first pipeline 4 and the second pipeline 5. When the first piston 11 performs a pumping movement along the first syringe 12, the first pumping chamber performs oil pumping through the first pipeline 4. When the first piston 11 performs pushing motion along the first injection cylinder 12, the first pumping chamber pushes oil through the second pipeline 5.

As shown in fig. 1, the second pumping device 2 includes: a second piston 21 and a second syringe 22. The second piston 21 is disposed in the second syringe 22, and forms a second pumping chamber with the inner wall of the second syringe 22, and the second syringe 22 is respectively communicated with the third pipeline 6 and the fourth pipeline 7. When the second piston 21 performs a pumping movement along the second syringe 22, the second pumping chamber performs oil pumping through the third line 6. When the second piston 21 performs a pushing motion along the second syringe 22, the second pumping chamber pushes oil through the fourth pipe 7.

As shown in fig. 1, the driving apparatus includes: a driving motor and an eccentric wheel. And two ends of the eccentric wheel are respectively connected with piston rods of the first pumping equipment and the second pumping equipment. The driving motor is in transmission connection with the eccentric wheel and is in signal connection with the controller and used for driving the eccentric wheel to rotate so as to enable the first pumping equipment and the second pumping equipment to reciprocate.

The device also includes: the touch screen is in signal connection with the controller and used for setting an interactive human-computer operation interface so as to realize human-computer interaction between an operator and the controller.

Further, one end of the first pipeline is communicated with one end of the third pipeline through a three-way valve, the other end of the first pipeline is communicated with one end of the second pipeline through a three-way valve, one end of the fourth pipeline is communicated with the other end of the second pipeline through a three-way valve, and the other end of the fourth pipeline is communicated with the other end of the third pipeline through a three-way valve.

As shown in fig. 1, further, the controller synchronously controls the first control valve 8 and the fourth control valve 11 to be turned on or off and synchronously controls the second control valve 9 and the third control valve 10 to be turned off or on when the first pumping device 1 and the second pumping device 2 perform reciprocating motion, so that the second pumping device 2 performs pushing motion when the first pumping device 2 performs pumping motion, or the second pumping device 2 performs pumping motion when the first pumping device 1 performs pushing motion.

In practical application, the device can be fixed on a base plate of a stand through a support, a required oil channeling amount control signal is input to a controller through a touch screen, the relative speed requirement of a piston and an injection cylinder is calculated by combining the size of the injection cylinder according to the oil channeling amount test requirement, the driving rotating speed of a driving motor is further set, and the driving motor drives an eccentric wheel to rotate so as to drive a first pumping device and a second pumping device to reciprocate; meanwhile, the controller outputs signals according to the motion conditions of the first pumping equipment and the second pumping equipment, adjusts and controls a control valve on the inlet pipeline, and requires the second control valve and the third control valve to be synchronously switched and the second control valve and the fourth control valve to be synchronously switched; through piston reciprocating motion in the injection tube, the fluid suction of one side injection tube with oil pan internal unit is wherein in, the opposite side injection tube is discharged its interior fluid to air intake manifold, realizes that one of them injection tube draws machine oil, and another injection tube sprays machine oil. The purpose that the engine oil flees into the combustion chamber of the engine and participates in combustion is achieved.

In the actual oil channeling process of the engine, engine oil in the oil pan can enter a breathing system and an air inlet manifold along with the change of air flow and pressure of a crankcase, and finally enters a combustion chamber of the engine to participate in combustion. This device sets up through unique double syringe, can set for according to the experimental demand, directly draws engine oil at the uniform velocity, in succession from the oil pan, then carries it to air intake manifold, finally participates in the burning to the combustion chamber. The method can realize the simulation of increasing the oil channeling amount and improving the super detonation frequency of the engine so as to realize the test effect.

Further, the controller is a PLC controller or a microprocessor.

Therefore, the invention provides the control device for the oil fleeing amount of the engine, the first pumping equipment and the second pumping equipment are driven by the driving device to directly and continuously pump oil from the oil pan at a constant speed according to the test requirement setting, and then the oil is conveyed to the intake manifold, so that the problem of large fluctuation of the control on the oil fleeing amount of the engine in the existing super detonation difference test is solved, the control precision of the oil fleeing amount of the engine can be improved, the test cost is reduced, and the test efficiency is improved.

The construction, features and functions of the present invention have been described in detail with reference to the embodiments shown in the drawings, but the present invention is not limited to the embodiments shown in the drawings, and all equivalent embodiments modified or modified by the spirit and scope of the present invention should be protected without departing from the spirit of the present invention.