Automatic supply system for engine lubricating oil

Abstract

The utility model discloses an engine lubricating oil automatic supply system which comprises an engine and an oil pan, the oil pan is arranged below the engine, one side of the engine and one side of the oil pan are connected with an oil pan liquid level bypass pipe, and a liquid level sensor is arranged at the upper end of the oil pan liquid level bypass pipe. The liquid level sensor is located in an oil pan, the lower end of the oil pan liquid level bypass pipe is connected with an oil pan oil bypass pipe, one end of the oil pan oil bypass pipe is connected with an oil pan oil supplementing pipe, the oil pan oil supplementing pipe is connected with a lubricating oil supplementing tank, and an electromagnetic valve is arranged on the oil pan oil supplementing pipe. The output end of the liquid level sensor is electrically connected with the input end of the control box beside the engine, and the output end of the control box beside the engine is electrically connected with the input end of the electromagnetic valve. According to the automatic supply system for the engine lubricating oil, automatic oil supply of an oil pan can be achieved, manpower is saved, and the requirements of places with high intelligent requirements are met; and the use universality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine lubrication, in particular to an automatic lubricating oil replenishing system for an engine. Background Art

[0002] The lubricating oil used in the engine lubrication system is generally stored in the oil pan of the engine. The engine's oil pump directly draws oil from the oil pan and inputs it into the lubrication system, and then returns it to the oil pan.

[0003] After the engine has been running for a certain period of time, the lubricating oil will be consumed, and the engine maintenance personnel need to check the oil pan level through the engine oil pan vernier dipstick. When the oil pan level is lower than the lower scale line of the vernier dipstick, personnel are required to add lubricating oil to the engine from the engine's lubrication filling port until the oil level reaches the upper scale line of the vernier dipstick.

[0004] However, for some special applications of engines, such as unmanned ships, large mining trucks and other applications with a high degree of intelligence, manual oil replenishment cannot meet the needs. Summary of the invention

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an engine lubricating oil automatic replenishing system, which can realize automatic oil replenishment of the oil pan, save manpower, meet the needs of places with high intelligent requirements, and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine lubricating oil automatic replenishing system, comprising an engine and an oil pan, the oil pan being arranged below the engine, the engine and one side of the oil pan being connected with an oil pan liquid level bypass pipe, the upper end of the oil pan liquid level bypass pipe being provided with a liquid level sensor, the liquid level sensor being located in the oil pan, the lower end of the oil pan liquid level bypass pipe being connected to the oil pan oil bypass pipe, one end of the oil pan oil bypass pipe being connected to the oil pan oil replenishing pipe, the oil pan oil replenishing pipe being connected to the lubricating oil replenishing tank, the oil pan oil replenishing pipe being provided with a solenoid valve, the output end of the liquid level sensor being electrically connected to the input end of the engine side control box, and the output end of the engine side control box being electrically connected to the input end of the solenoid valve.

[0007] As a preferred technical solution of the utility model, a first connecting port is provided at the bottom of the oil pan liquid level bypass pipe, and the first connecting port is connected to the oil pan through a pipeline. A second connecting port is provided at the upper end of the oil pan liquid level bypass pipe, and the second connecting port is connected to the engine crankcase through a pipeline.

[0008] As a preferred technical solution of the present utility model, the liquid level sensor is a capacitive liquid level sensor.

[0009] As a preferred technical solution of the utility model, the lubricating oil replenishing tank is arranged above the liquid level in the oil pan.

[0010] As a preferred technical solution of the utility model, the lubricating oil replenishing tank is a suspended box.

[0011] As a preferred technical solution of the utility model, one side of the oil pan liquid level bypass pipe is connected to the engine through a liquid level cylinder ventilation hose.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the automatic lubricating oil replenishing system of the engine is reasonably designed and ingeniously conceived. An oil pan liquid level bypass pipe is installed on the engine, and a liquid level sensor is installed on the oil pan liquid level bypass pipe. The liquid level in the oil pan is continuously measured by the liquid level sensor and fed back to the control box next to the engine. A lubricating oil replenishing tank is arranged on one side of the engine. When the liquid level is too low, the solenoid valve is controlled to open, and the oil in the oil pan is replenished through the lubricating oil replenishing tank, thereby realizing the automatic oil replenishing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the oil pan liquid level bypass pipe.

[0015] In the figure: 1 engine, 2 oil pan liquid level bypass pipe, 3 liquid level sensor, 4 oil pan oil bypass pipe, 5 oil pan, 6 liquid level cylinder ventilation hose, 7 oil pan oil replenishing pipe, 8 solenoid valve, 9 lubricating oil replenishing tank, 10 first connecting port, 11 second connecting port. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is a schematic diagram of the present invention). Figure 1 Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0017] See also Figure 1-2The utility model provides a technical solution: an automatic lubricating oil replenishing system for an engine, comprising an engine 1 and an oil pan 5, the oil pan 5 being arranged below the engine 1, a first connecting port 10 being arranged at the bottom of an oil pan liquid level bypass pipe 2, the first connecting port 10 being connected to the oil pan 5 through a pipeline, a second connecting port 11 being arranged at the upper end of an oil pan liquid level bypass pipe 4, the second connecting port 11 being connected to an engine crankcase through a pipeline, a liquid level sensor 3 being arranged at the upper end of an oil pan liquid level bypass pipe 2, the liquid level sensor 3 being located in the oil pan 5, preferably, a capacitive liquid level sensor is selected, and the oil The lower end of the sump liquid level bypass pipe 2 is connected to the oil sump oil bypass pipe 4, one end of the oil sump oil bypass pipe 4 is connected to the oil sump oil replenishing pipe 7, the oil sump oil replenishing pipe 7 is connected to the lubricating oil replenishing tank 9, and the oil sump oil replenishing pipe 7 is provided with a solenoid valve 8. The output end of the liquid level sensor 3 is electrically connected to the input end of the engine side control box, and the output end of the engine side control box is electrically connected to the input end of the solenoid valve 8. The capacitive liquid level gauge continuously measures the liquid level in the oil sump 5, and converts the displacement of the liquid level change into an analog linear 4-20mA standard signal and outputs it to the engine side control box, thereby improving the accuracy of liquid level monitoring.

[0018] Furthermore, in order to facilitate oil replenishment, the lubricating oil replenishing tank 9 is arranged above the liquid level in the oil pan 5, so that the oil replenishment of the engine 1 can be achieved only by gravity.

[0019] Furthermore, in order to facilitate the installation of the lubricating oil replenishing tank 9, the lubricating oil replenishing tank 9 is a hanging box.

[0020] Furthermore, in order to ensure that the air pressure in the engine 1 and the oil pan bypass pipe 2 is the same and to facilitate oil replenishment, one side of the oil pan liquid level bypass pipe 2 is connected to the engine 1 through a liquid level cylinder ventilation hose 6.

[0021] When in use: the capacitive level gauge continuously measures the liquid level in the oil pan 5, converts the displacement of the liquid level change into an analog linear 4-20mA standard signal and outputs it to the engine side control box. The engine side control box sets the minimum and maximum liquid level signal values ​​of the oil pan 5 internally. When the liquid level in the oil pan 5 drops to the minimum liquid level threshold, the engine side control box controls the solenoid valve 8 to open, and the lubricating oil in the lubricating oil replenishing tank 9 is delivered to the oil pan 5 by gravity, thereby realizing the function of automatically replenishing the oil pan 5.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic lubricating oil replenishing system for an engine, comprising an engine (1) and an oil pan (5), wherein the oil pan (5) is arranged below the engine (1), and is characterized in that: The engine (1) is connected to one side of the oil pan (5) with an oil pan liquid level bypass pipe (2), the upper end of the oil pan liquid level bypass pipe (2) is provided with a liquid level sensor (3), the liquid level sensor (3) is located in the oil pan (5), the lower end of the oil pan liquid level bypass pipe (2) is connected to the oil pan oil bypass pipe (4), one end of the oil pan oil bypass pipe (4) is connected to the oil pan oil replenishing pipe (7), the oil pan oil replenishing pipe (7) is connected to the lubricating oil replenishing tank (9), the oil pan oil replenishing pipe (7) is provided with a solenoid valve (8), the output end of the liquid level sensor (3) is electrically connected to the input end of the engine side control box, and the output end of the engine side control box is electrically connected to the input end of the solenoid valve (8).

2. The automatic lubricating oil replenishing system for an engine according to claim 1, characterized in that: The bottom of the oil pan liquid level bypass pipe (2) is provided with a first connection port (10), the first connection port (10) is connected to the oil pan (5) through a pipeline, and the upper end of the oil pan liquid level bypass pipe (2) is provided with a second connection port (11), the second connection port (11) is connected to the engine crankcase through a pipeline.

3. The automatic lubricating oil replenishing system for an engine according to claim 1, characterized in that: The liquid level sensor (3) is a capacitive liquid level sensor.

4. The engine lubricating oil automatic replenishing system according to claim 1, characterized in that: The lubricating oil replenishing tank (9) is arranged above the liquid level in the oil pan (5).

5. The engine lubricating oil automatic replenishing system according to claim 1, characterized in that: The lubricating oil replenishing tank (9) is a suspended box.

6. The engine lubricating oil automatic replenishing system according to claim 1, characterized in that: One side of the oil pan liquid level bypass pipe (2) is connected to the engine (1) via a liquid level cylinder ventilation hose (6).

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