Combined lubricating oil pressure regulating valve for engine

Abstract

The utility model relates to a combined type lubricating oil pressure regulating valve of an engine, which belongs to the technical field of pressure regulating valves and comprises a one-way valve main body, a feedback regulating component is arranged on the left side of the one-way valve main body, an oil inlet is arranged on the front side of the one-way valve main body, and an oil outlet is arranged on the rear side of the one-way valve main body. A manual adjusting valve is arranged on the top side of the one-way valve body, and an overflow pipe is fixed to the left side of the one-way valve body. According to the combined type lubricating oil pressure regulating valve for the engine, the one-way valve body can meet the requirement for engine oil flow, meanwhile, backflow of engine oil can be avoided, the initial regulating pressure can be preset through the manual regulating valve, in the unit operation process, the engine oil outlet pressure can be manually regulated, the requirements of special conditions are met, and pressure regulation can be conducted when the engine oil temperature is low; the oil pressure of the main oil duct is fed back, so that the pressure of the main oil duct is always maintained in a preset range, the feedback pressure regulating valve directly feeds back the output pressure, and the characteristics of high regulating precision and fast response are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating valves, in particular to an engine combined lubricating oil pressure regulating valve. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy. A regulating valve, also known as a control valve, is a final control element in the field of industrial automation process control that uses power to change process parameters such as medium flow, pressure, temperature, and liquid level by receiving the control signal output by the regulating control unit. It is generally composed of an actuator and a valve. According to the stroke characteristics, regulating valves can be divided into linear and angular stroke types; according to the power used by the actuator, they can be divided into three types: pneumatic regulating valves, electric regulating valves, and hydraulic regulating valves.

[0003] For example, Chinese patent (CN211010737U) discloses a lubricating oil pressure regulating valve, which belongs to the technical field of regulating valves. The key points of its technical solution are that it includes a fixed cover, a fixed sleeve and a regulating chamber, the upper end of the fixed cover is threadedly connected to an adjusting rod, the lower end of the fixed cover is fixedly connected to a fixed sleeve, the connection between the fixed sleeve and the fixed cover is fixedly connected to a liquid separator plate, the lower end of the adjusting rod passes through the liquid separator plate and is fixedly connected to a connecting plate, a connecting plate is provided inside the fixed sleeve, the lower end of the connecting plate is fixedly connected to a buffer spring, the lower end of the buffer spring is sleeved with a limiting rod, the lower ends of the limiting rod and the buffer spring are fixedly connected to a support plate, the lower end of the support plate is fixedly connected to the support rod, and the lower end of the fixed sleeve is fixedly connected to the fixed plate. The utility model better controls the gas passing through the regulating valve to a stable pressure through the regulating chamber and the gas transmission chamber, thereby better transmitting gas to it.

[0004] The above scheme still has the following technical deficiencies. When the engine is started at low temperature, the viscosity of the lubricating oil is high and the oil pump outlet pressure is high. When the oil temperature rises, the viscosity of the lubricating oil becomes smaller and the oil pump outlet pressure becomes smaller. In order to maintain the stability of the oil pressure in the engine main oil channel and enable the engine oil pump to adapt to different oil temperatures, a regulating valve with a relatively wide pressure regulation range is required to achieve the stability of the oil pressure in the engine main oil channel. Based on this, an engine combined lubricating oil pressure regulating valve is proposed. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an engine combined lubricating oil pressure regulating valve, which has the advantage of conveniently adjusting the oil pressure in the engine main oil channel according to the oil temperature to stabilize the oil pressure, and solves the problem that the oil pressure in the engine main oil channel is difficult to adjust according to the oil temperature.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an engine combined lubricating oil pressure regulating valve, comprising a one-way valve body, a feedback regulating assembly being provided on the left side of the one-way valve body, an oil inlet being provided on the front side of the one-way valve body, an oil outlet being provided on the rear side of the one-way valve body, a manual regulating valve being provided on the top side of the one-way valve body, and an overflow pipe being fixed on the left side of the one-way valve body.

[0007] By adopting this technical solution, the manual regulating valve and the feedback regulating valve can be combined to realize automatic regulation of the oil pressure and manual regulation of the oil pressure.

[0008] Furthermore, the feedback regulating assembly includes a feedback regulating valve body fixed to the right side of the one-way valve body, a feedback port opened on the top side of the feedback regulating valve body, and a feedback pipe fixed to the feedback port.

[0009] By adopting this technical solution, the oil pressure can be automatically adjusted.

[0010] Furthermore, an overflow port is provided on the left side of the overflow pipe, and the manual regulating valve can adjust the pressure at the oil outlet.

[0011] By adopting this technical solution, manual adjustment of the oil pressure is facilitated.

[0012] Furthermore, a first flange is fixed to the front side of the one-way valve body, a first circular hole is opened inside the first flange, and the first circular hole corresponds to the oil inlet.

[0013] By adopting this technical solution, it is convenient to add engine oil into the one-way valve body through the oil inlet.

[0014] Furthermore, a second flange is fixed to the rear side of the one-way valve body, and a second circular hole is opened inside the second flange, and the second circular hole corresponds to the oil outlet.

[0015] By adopting this technical solution, it is convenient for engine oil to be discharged from the oil outlet.

[0016] Furthermore, a main oil passage is fixed to the rear side of the one-way valve body, and a top side of the main oil passage is fixed to an end of the feedback pipe away from the feedback regulating valve body.

[0017] By adopting this technical solution, the feedback pipe can be used to return excess oil to the one-way valve body.

[0018] Furthermore, a cover plate is abutted against the top side of the feedback regulating valve body, and the feedback port is opened on the cover plate.

[0019] By adopting this technical solution, it is convenient for the engine oil to flow out of the feedback port.

[0020] Furthermore, the feedback pipe is fixed to the top side of the cover plate, and the cover plate is fixed to the one-way valve body by bolts.

[0021] By adopting this technical solution, it is convenient to fix the feedback pipe on the feedback regulating valve body.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] The engine combined lubricating oil pressure regulating valve has a one-way valve body that can meet the needs of oil flow and prevent oil backflow. The manual regulating valve can preset the initial regulating pressure. During the operation of the unit, the oil outlet pressure can be manually adjusted to meet the needs of special situations. It can regulate the pressure when the oil temperature is low. By feedbacking the oil pressure of the main oil channel, the main oil channel pressure is always maintained within a predetermined range. The feedback pressure regulating valve directly feeds back the output pressure, with the characteristics of high regulation accuracy and fast response. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0026] In the figure: 1. Check valve body; 200. Feedback adjustment assembly; 201. Feedback control valve body; 202. Feedback port; 203. Feedback pipe; 3. Oil inlet; 4. Oil outlet; 5. Manual regulating valve; 6. Overflow pipe. DETAILED DESCRIPTION

[0027] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1 to 2In this embodiment, an engine combined lubricating oil pressure regulating valve includes a one-way valve body 1, a feedback adjustment component 200 is provided on the left side of the one-way valve body 1, an oil inlet 3 is opened on the front side of the one-way valve body 1, an oil outlet 4 is opened on the rear side of the one-way valve body 1, a manual regulating valve 5 is provided on the top side of the one-way valve body 1, an overflow pipe 6 is fixed to the left side of the one-way valve body 1, an overflow port is opened on the left side of the overflow pipe 6, and the manual regulating valve 5 can adjust the pressure at the oil outlet 4, a first flange is fixed to the front side of the one-way valve body 1, a first circular hole is opened inside the first flange, and the first circular hole corresponds to the oil inlet 3, a second flange is fixed to the rear side of the one-way valve body 1, a second circular hole is opened inside the second flange, and the second circular hole corresponds to the oil outlet 4.

[0029] The feedback adjustment component 200 in this embodiment is used to adjust the output pressure, the one-way valve body 1 is used to meet the flow demand and prevent the oil from flowing back, the manual adjustment valve 5 is used to preset the initial adjustment pressure, and during the operation of the unit, the pressure of the oil outlet 4 can be manually adjusted to meet special circumstances, and the overflow pipe 6 is used to overflow the excess oil.

[0030] It should be noted that the one-way valve body 1 and the manual regulating valve 5 are both common contents in the prior art, so their specific structures are not shown in the drawings.

[0031] See also Figure 1 and Figure 2 In order to facilitate pressure feedback regulation using the feedback regulation assembly 200, the feedback regulation assembly 200 in this embodiment includes a feedback regulation valve body 201 fixed to the right side of the one-way valve body 1, a feedback port 202 opened on the top side of the feedback regulation valve body 201, and a feedback pipe 203 fixed to the feedback port 202. A main oil channel is fixed to the rear side of the one-way valve body 1, and the top side of the main oil channel is fixed to the end of the feedback pipe 203 away from the feedback regulation valve body 201. A cover plate is abutted on the top side of the feedback regulation valve body 201, the feedback port 202 is opened on the cover plate, the feedback pipe 203 is fixed to the top side of the cover plate, and the cover plate is fixed to the one-way valve body 1 by bolts.

[0032] The feedback regulating assembly 200 in this embodiment can feed back the main oil channel pressure to the feedback regulating assembly 200 through the feedback pipe 203. When the main oil channel pressure is relatively high, the pressure is fed back to the feedback regulating valve body 201, and the engine oil enters the overflow port from the inlet through the feedback regulating valve body 201, and finally flows out from the overflow port, thereby achieving pressure regulation in the main oil channel.

[0033] It should be noted that the cover plate is used to seal the feedback regulating valve body 201 and facilitate the replacement of the feedback pipe 203. The feedback regulating valve body 201 is common in the prior art, so its specific structure is not shown in the figure.

[0034] The working principle of the above embodiment is:

[0035] When the engine is started at low temperature, the manual regulating valve 5 is turned, and the manual regulating valve 5 adjusts the pressure at the oil outlet 4 so that the pressure at the oil outlet 4 is normal. When the pressure regulating valve is used normally, the engine oil is added to the one-way valve body 1 from the oil inlet 3, and the one-way valve body 1 introduces the engine oil from the oil outlet 4 into the main oil channel. When the main oil channel pressure is high, the main oil channel pressure is fed back to the feedback regulating valve body 201 through the feedback pipe 203, and the excess engine oil flows from the oil inlet through the feedback regulating valve body 201 into the overflow pipe 6, and finally the engine oil flows out from the overflow pipe 6, thereby realizing the regulation of the pressure in the main pipeline.

Claims

1. An engine combined lubricating oil pressure regulating valve, comprising a one-way valve body (1), characterized in that: A feedback adjustment component (200) is provided on the left side of the one-way valve body (1), an oil inlet (3) is provided on the front side of the one-way valve body (1), an oil outlet (4) is provided on the rear side of the one-way valve body (1), a manual regulating valve (5) is provided on the top side of the one-way valve body (1), and an overflow pipe (6) is fixed on the left side of the one-way valve body (1).

2. The engine combined lubricating oil pressure regulating valve according to claim 1, characterized in that: The feedback regulating assembly (200) comprises a feedback regulating valve body (201) fixed to the right side of the one-way valve body (1), a feedback port (202) provided on the top side of the feedback regulating valve body (201), and a feedback pipe (203) fixed to the feedback port (202).

3. The engine combined lubricating oil pressure regulating valve according to claim 1, characterized in that: An overflow port is provided on the left side of the overflow pipe (6), and the manual regulating valve (5) can regulate the pressure at the oil outlet (4).

4. The engine combined lubricating oil pressure regulating valve according to claim 1, characterized in that: A first flange is fixed to the front side of the one-way valve body (1), a first circular hole is provided inside the first flange, and the first circular hole corresponds to the oil inlet (3).

5. The engine combined lubricating oil pressure regulating valve according to claim 1, characterized in that: A second flange is fixed to the rear side of the one-way valve body (1), and a second circular hole is provided inside the second flange, and the second circular hole corresponds to the oil outlet (4).

6. The engine combined lubricating oil pressure regulating valve according to claim 2, characterized in that: A main oil passage is fixed to the rear side of the one-way valve body (1), and the top side of the main oil passage is fixed to an end of the feedback pipe (203) away from the feedback regulating valve body (201).

7. The engine combined lubricating oil pressure regulating valve according to claim 2, characterized in that: The top side of the feedback regulating valve body (201) is in contact with a cover plate, and the feedback port (202) is provided on the cover plate.

8. The engine combined lubricating oil pressure regulating valve according to claim 7, characterized in that: The feedback pipe (203) is fixed to the top side of the cover plate, and the cover plate is fixed to the one-way valve body (1) via bolts.

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