Arrangement structure of electric control degassing valve

Abstract

The invention discloses an arrangement structure of an electric control degassing valve, relates to the technical field of engine complete machine arrangement and parts, and is applied to an engine cooling system. The arrangement structure of the electric control degassing valve comprises a cooling liquid flowing main circulation system, a cooling liquid flowing auxiliary circulation system and a degassing assembly. The cooling liquid flowing main circulation system is arranged on an engine. The cooling liquid flowing main circulation system is arranged on the engine; the cooling liquid flowing auxiliary circulating system is mounted on the engine; according to the technical key points, the electric control degassing valve is matched with a control system of the engine and is closed when a low-load scene is recognized, so that cooling liquid of the engine does not need to pass through an expansion water tank during circular flowing and cannot flow to the expansion water tank; when a high-load scene is recognized, a normal degassing function can be automatically opened and started, meanwhile, the degassing valve can be integrated on a thermolator, a machine body cylinder cover water jacket or a radiator water pipe, and the degassing valve has multiple forms, is convenient to use in a matched mode and has a good use prospect.

Description

Technical Field

[0001] The invention belongs to the technical field of engine whole machine arrangement and parts, and in particular is an arrangement structure of an electric-controlled degassing valve. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.

[0003] The working principle of the engine's cooling system is that the coolant is transported from the water pump to the water jacket of the cylinder head, and at the same time passes through the oil cooler and thermostat. A small amount of coolant also flows through the degassing pipeline through the expansion tank, discharges the gas in the coolant and flows back to the engine.

[0004] Under high load, the overall heat load of the engine is large, and bubbles will be generated when the coolant circulates in the engine. If it is not discharged in time, it will affect the reliability of the engine. Therefore, degassing is required under high load. However, under low load, the heat load of the engine is small, only a small amount of bubbles are generated, or even no bubbles, so degassing is not required.

[0005] In order to meet the high-load degassing requirements of the engine, a degassing hole is currently opened on the thermostat seat and kept open. However, in this case, the expansion tank and the degassing hole cooperate with the exhaust to cause flow loss under low load, affecting the low-load coolant temperature.

[0006] Low coolant temperatures at low loads can affect fuel economy and also have an adverse effect on emissions;

[0007] In summary, the existing engine cooling systems have certain drawbacks when in use and do not meet people's use requirements. Therefore, we propose an arrangement structure of an electronically controlled degassing valve. Summary of the invention

[0008] In order to overcome the shortcomings of the prior art, an embodiment of the present application provides an arrangement structure of an electronically controlled degassing valve. The electronically controlled degassing valve cooperates with the control system of the engine and is closed when a low-load scenario is identified, so that the engine coolant does not need to pass through the expansion tank when circulating and cannot flow to the expansion tank; when a high-load scenario is identified, it can be automatically opened to start the normal degassing function. At the same time, the degassing valve can be integrated in the thermostat, the cylinder head water jacket or the radiator water pipe. It has a variety of forms and is convenient for matching use. It can effectively increase the engine's low-load coolant temperature, improve the economy of the whole machine and reduce carbon emissions, and has good prospects for use.

[0009] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0010] An arrangement structure of an electrically controlled degassing valve, which is applied to an engine cooling system, comprises a main coolant flow circulation system, an auxiliary coolant flow circulation system and a degassing component:

[0011] The main circulation system of coolant flow is arranged on the engine;

[0012] The main coolant flow circulation system is arranged on the engine; the auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected with the main coolant flow circulation system;

[0013] The degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system. It is used to keep it closed when the engine is running at a low load, and open it when the engine is running at a high load to remove gas from the coolant.

[0014] Preferably, the main circulation system of the coolant flow includes a water pump, a cylinder head water jacket, an oil cooler, a thermostat and a radiator:

[0015] The water pump is installed on the cylinder block of the engine and is used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system;

[0016] The cylinder head water jacket is installed on the cylinder block of the engine, and the cylinder head water jacket is connected to the water pump through a pipeline;

[0017] The oil cooler is installed on the cylinder block of the engine, and the oil cooler, the water pump, the cylinder head water jacket and the coolant storage tank installed on the cylinder block of the engine form a first coolant circulation loop;

[0018] Thermostat and radiator, both of which are mounted on the cylinder block, the thermostat, radiator, water pump, cylinder head water jacket and coolant storage tank constitute a second coolant circulation loop.

[0019] Preferably, the coolant flow auxiliary circulation system includes an expansion water tank, which is connected to the engine cylinder head water jacket through a degassing pipe. The expansion water tank, water pump, engine cylinder head water jacket and coolant storage tank constitute a third coolant circulation loop.

[0020] Preferably, the degassing assembly includes an electrically controlled one-way degassing valve, which is connected to the engine control system and is used to open when receiving a high load signal from the engine control system and to close when receiving a low load signal from the engine control system.

[0021] Preferably, the electrically controlled one-way degassing valve is installed on a thermostat, and the electrically controlled one-way degassing valve is communicated with the thermostat.

[0022] Preferably, the electrically controlled one-way degassing valve is mounted on the water jacket of the engine body cylinder head, and the electrically controlled one-way degassing valve is communicated with the interior of the water jacket of the engine body cylinder head.

[0023] Preferably, the electrically controlled one-way degassing valve is installed on a heat dissipation water pipe of the radiator, and the electrically controlled one-way degassing valve is communicated with the heat dissipation water pipe of the radiator.

[0024] Preferably, the electrically controlled one-way degassing valve is installed on a pipe between the water jacket of the cylinder head of the engine body and the expansion water tank, and the electrically controlled one-way degassing valve is used to realize the opening and closing of the heat dissipation water pipe.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects:

[0026] The present invention records an arrangement structure of an electronically controlled degassing valve, which cooperates with the control system of the engine and is closed when a low-load scenario is identified, so that the engine coolant does not need to pass through an expansion water tank when circulating and cannot flow to the expansion water tank; when a high-load scenario is identified, it can be automatically opened to start the normal degassing function. At the same time, the degassing valve can be integrated in the thermostat, the cylinder head water jacket or the radiator water pipe. It has a variety of forms, is convenient for supporting use, and has a good prospect of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention in use state;

[0028] Figure 2 It is the overall structural block diagram of the present invention.

[0029] Figure numerals: 1. Cylinder block; 2. Cylinder head water jacket; 3. Radiator; 4. Oil cooler; 5. Water pump; 6. Thermostat; 7. Electronically controlled one-way degassing valve. DETAILED DESCRIPTION

[0030] The embodiment of the present application provides an arrangement structure of an electrically controlled degassing valve to solve the problem that the arrangement structure of the existing electrically controlled degassing valve in the prior art has a large overall heat load on the engine under high load during actual use, and bubbles will be generated when the coolant circulates in the engine. If it is not discharged in time, it will affect the reliability of the engine, so degassing is required under high load. However, under low load conditions, the heat load of the engine is small, and only a small amount of bubbles are generated, or even no bubbles, so degassing is not required. In order to meet the high-load degassing requirements of the engine, a degassing hole is currently opened on the thermostat seat and kept in a normally open state. However, in this case, the expansion tank and the degassing hole cooperate with the exhaust to cause flow loss under low load, which affects the low-load coolant temperature. The low coolant temperature at low load affects fuel economy and also has an adverse effect on emissions.

[0031] Embodiment 1:

[0032] An arrangement structure of an electrically controlled degassing valve, such as Figure 1-Figure 2 As shown, it is applied to the engine cooling system. The arrangement structure of the electronically controlled degassing valve includes a coolant flow main circulation system, a coolant flow auxiliary circulation system and a degassing component:

[0033] The main coolant flow circulation system is arranged on the engine; the auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected with the main coolant flow circulation system; the degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system, and is used to keep it closed when the engine is running at low load, and open it when the engine is running at high load to remove gas from the coolant.

[0034] The main circulation system of the coolant flow includes a water pump 5, a cylinder head water jacket 2, an oil cooler 4, a thermostat 6 and a radiator 3:

[0035] The water pump 5 is installed on the cylinder block 1 of the engine and is used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system;

[0036] The cylinder head water jacket 2 is installed on the cylinder block 1 of the engine, and the cylinder head water jacket 2 is connected to the water pump 5 through a pipeline;

[0037] The oil cooler 4 is mounted on the cylinder block 1 of the engine, and the oil cooler 4, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank mounted on the cylinder block 1 of the engine form a first coolant circulation loop;

[0038] The thermostat 6 and the radiator 3 are both mounted on the cylinder block 1. The thermostat 6, the radiator 3, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank form a second coolant circulation loop.

[0039] The coolant flow auxiliary circulation system includes an expansion water tank, which is connected to the cylinder head water jacket 2 through a degassing pipeline. The expansion water tank, water pump 5, cylinder head water jacket 2 and coolant storage tank constitute a third coolant circulation loop.

[0040] The above structure is the structure of the existing engine cooling system except for the degassing system. The present invention does not improve this structure and it belongs to the existing technology, so no detailed description is made here.

[0041] The degassing assembly includes an electrically controlled one-way degassing valve 7, which is connected to the control system of the engine and is used to open when receiving a high load signal from the control system of the engine, and is used to close when receiving a low load signal from the control system of the engine.

[0042] The engine control system determines whether it is in a low-load scenario or a high-load scenario based on the water temperature monitoring data, the throttle data or the engine speed, and then sends a corresponding signal to control the opening or closing of the electronically controlled one-way degassing valve 7.

[0043] The electrically controlled one-way degassing valve 7 is installed on the thermostat 6 , and the electrically controlled one-way degassing valve 7 is connected to the thermostat 6 through the solenoid valve 7 .

[0044] When in use, when a low-load scenario is identified, the electrically controlled one-way degassing valve 7 is closed. In this case, the expansion water tank and the corresponding pipeline do not have the function of exhausting gas, and the degassing effect is not turned on at this time;

[0045] When a high-load scenario is identified, the electrically controlled one-way degassing valve 7 is opened, so that the electrically controlled one-way degassing valve 7 is started, and the expansion water tank and the degassing hole cooperate to perform normal degassing.

[0046] Embodiment 2:

[0047] An arrangement structure of an electrically controlled degassing valve, such as Figure 1-Figure 2 As shown, an arrangement structure of an electrically controlled degassing valve, such as Figure 1-Figure 2 As shown, it is applied to the engine cooling system. The arrangement structure of the electronically controlled degassing valve includes a coolant flow main circulation system, a coolant flow auxiliary circulation system and a degassing component:

[0048] The main coolant flow circulation system is arranged on the engine; the auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected with the main coolant flow circulation system; the degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system, and is used to keep it closed when the engine is running at low load, and open it when the engine is running at high load to remove gas from the coolant.

[0049] The main circulation system of the coolant flow includes a water pump 5, a cylinder head water jacket 2, an oil cooler 4, a thermostat 6 and a radiator 3:

[0050] The water pump 5 is installed on the cylinder block 1 of the engine and is used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system;

[0051] The cylinder head water jacket 2 is installed on the cylinder block 1 of the engine, and the cylinder head water jacket 2 is connected to the water pump 5 through a pipeline;

[0052] The oil cooler 4 is mounted on the cylinder block 1 of the engine, and the oil cooler 4, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank mounted on the cylinder block 1 of the engine form a first coolant circulation loop;

[0053] The thermostat 6 and the radiator 3 are both mounted on the cylinder block 1. The thermostat 6, the radiator 3, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank form a second coolant circulation loop.

[0054] The coolant flow auxiliary circulation system includes an expansion water tank, which is connected to the cylinder head water jacket 2 through a degassing pipeline. The expansion water tank, water pump 5, cylinder head water jacket 2 and coolant storage tank constitute a third coolant circulation loop.

[0055] The above structure is the structure of the existing engine cooling system except for the degassing system. The present invention does not improve it and it belongs to the prior art, so no further description will be made again.

[0056] The degassing assembly includes an electrically controlled one-way degassing valve 7, which is connected to the control system of the engine and is used to open when receiving a high load signal from the control system of the engine, and is used to close when receiving a low load signal from the control system of the engine.

[0057] The engine control system determines whether it is in a low-load scenario or a high-load scenario based on the water temperature monitoring data, the throttle data or the engine speed, and then sends a corresponding signal to control the opening or closing of the electronically controlled one-way degassing valve 7.

[0058] The electrically controlled one-way degassing valve 7 is installed on the thermostat 6 , and the electrically controlled one-way degassing valve 7 is communicated with the thermostat 6 .

[0059] In this case, there is no need to open an exhaust hole on the thermostat 6;

[0060] When in use, when a low-load scenario is identified, the electrically controlled one-way degassing valve 7 is closed, so that the coolant flows through the main circulation system without exhausting gas;

[0061] When a high-load scenario is identified, the electrically controlled one-way degassing valve 7 is opened, and the electrically controlled one-way degassing valve 7 and the expansion water tank cooperate to perform normal degassing.

[0062] Embodiment 3:

[0063] An arrangement structure of an electrically controlled degassing valve, such as Figure 1-Figure 2 As shown, it is applied to the engine cooling system. The arrangement structure of the electronically controlled degassing valve includes a coolant flow main circulation system, a coolant flow auxiliary circulation system and a degassing component:

[0064] The main coolant flow circulation system is arranged on the engine; the auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected with the main coolant flow circulation system; the degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system, and is used to keep it closed when the engine is running at low load, and open it when the engine is running at high load to remove gas from the coolant.

[0065] The main circulation system of the coolant flow includes a water pump 5, a cylinder head water jacket 2, an oil cooler 4, a thermostat 6 and a radiator 3:

[0066] The water pump 5 is installed on the cylinder block 1 of the engine and is used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system;

[0067] The cylinder head water jacket 2 is installed on the cylinder block 1 of the engine, and the cylinder head water jacket 2 is connected to the water pump 5 through a pipeline;

[0068] The oil cooler 4 is mounted on the cylinder block 1 of the engine, and the oil cooler 4, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank mounted on the cylinder block 1 of the engine form a first coolant circulation loop;

[0069] The thermostat 6 and the radiator 3 are both mounted on the cylinder block 1. The thermostat 6, the radiator 3, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank form a second coolant circulation loop.

[0070] The coolant flow auxiliary circulation system includes an expansion water tank, which is connected to the cylinder head water jacket 2 through a degassing pipeline. The expansion water tank, water pump 5, cylinder head water jacket 2 and coolant storage tank constitute a third coolant circulation loop.

[0071] The above structure is the structure of the existing engine cooling system except for the degassing system. The present invention does not improve this structure and it belongs to the existing technology, so no detailed description is made here.

[0072] The degassing assembly includes an electrically controlled one-way degassing valve 7, which is connected to the control system of the engine and is used to open when receiving a high load signal from the control system of the engine, and is used to close when receiving a low load signal from the control system of the engine.

[0073] The engine control system determines whether it is in a low-load scenario or a high-load scenario based on the water temperature monitoring data, the throttle data or the engine speed, and then sends a corresponding signal to control the opening or closing of the electronically controlled one-way degassing valve 7.

[0074] The electric-controlled one-way degassing valve 7 is installed on the engine body cylinder head water jacket 2 , and the electric-controlled one-way degassing valve 7 is communicated with the interior of the engine body cylinder head water jacket 2 .

[0075] In this case, there is no need to open an exhaust hole on the thermostat 6;

[0076] When in use, when a low-load scenario is identified, the electrically controlled one-way degassing valve 7 is closed, so that the coolant flows through the main circulation system without exhausting gas;

[0077] When a high-load scenario is identified, the electrically controlled one-way degassing valve 7 is opened, and the electrically controlled one-way degassing valve 7 and the expansion water tank cooperate to perform normal degassing.

[0078] Embodiment 4:

[0079] An arrangement structure of an electrically controlled degassing valve, such as Figure 1-Figure 2 As shown, it is applied to the engine cooling system. The arrangement structure of the electronically controlled degassing valve includes a coolant flow main circulation system, a coolant flow auxiliary circulation system and a degassing component:

[0080] The main coolant flow circulation system is arranged on the engine; the auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected with the main coolant flow circulation system; the degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system, and is used to keep it closed when the engine is running at low load, and open it when the engine is running at high load to remove gas from the coolant.

[0081] The main circulation system of the coolant flow includes a water pump 5, a cylinder head water jacket 2, an oil cooler 4, a thermostat 6 and a radiator 3:

[0082] The water pump 5 is installed on the cylinder block 1 of the engine and is used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system;

[0083] The cylinder head water jacket 2 is installed on the cylinder block 1 of the engine, and the cylinder head water jacket 2 is connected to the water pump 5 through a pipeline;

[0084] The oil cooler 4 is mounted on the cylinder block 1 of the engine, and the oil cooler 4, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank mounted on the cylinder block 1 of the engine form a first coolant circulation loop;

[0085] The thermostat 6 and the radiator 3 are both mounted on the cylinder block 1. The thermostat 6, the radiator 3, the water pump 5, the cylinder head water jacket 2 and the coolant storage tank form a second coolant circulation loop.

[0086] The coolant flow auxiliary circulation system includes an expansion water tank, which is connected to the cylinder head water jacket 2 through a degassing pipeline. The expansion water tank, water pump 5, cylinder head water jacket 2 and coolant storage tank constitute a third coolant circulation loop.

[0087] The above structure is the structure of the existing engine cooling system except for the degassing system. The present invention does not improve this structure and it belongs to the existing technology, so no detailed description is made here.

[0088] The degassing assembly includes an electrically controlled one-way degassing valve 7, which is connected to the control system of the engine and is used to open when receiving a high load signal from the control system of the engine, and is used to close when receiving a low load signal from the control system of the engine.

[0089] The engine control system determines whether it is in a low-load scenario or a high-load scenario based on the water temperature monitoring data, the throttle data or the engine speed, and then sends a corresponding signal to control the opening or closing of the electronically controlled one-way degassing valve 7.

[0090] The electrically controlled one-way degassing valve 7 is installed on the heat dissipation water pipe of the radiator 3 , and the electrically controlled one-way degassing valve 7 is communicated with the heat dissipation water pipe of the radiator 3 .

[0091] In this case, there is no need to open an exhaust hole on the thermostat 6;

[0092] When in use, when a low-load scenario is identified, the electrically controlled one-way degassing valve 7 is closed, so that the coolant flows through the main circulation system without exhausting gas;

[0093] When a high-load scenario is identified, the electrically controlled one-way degassing valve 7 is opened, and the electrically controlled one-way degassing valve 7 and the expansion water tank cooperate to perform normal degassing.

[0094] The principle of embodiment 1 is to interrupt the expansion tank in a low-load scenario, and only the degassing hole degasses, thereby interrupting the exhaust of the expansion tank, while the degassing hole and the expansion tank cooperate to degas in a high-load scenario;

[0095] The principle of Embodiments 2-4 is that the electrically controlled one-way degassing valve 7 is not started in a low-load scenario, and only the expansion water tank is degassed. In a high-load scenario, the electrically controlled one-way degassing valve 7 and the expansion water tank cooperate to degas, thereby avoiding the problem of flow loss under low load and affecting the low-load coolant temperature. It can also meet the degassing requirements in high-load scenarios, and the use effect is good.

[0096] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An arrangement structure of an electronically controlled degassing valve, which is applied to an engine cooling system, characterized in that: The arrangement structure of the electric control degassing valve includes: A coolant flow main circulation system, which is arranged on the engine; The main circulation system of coolant flow is arranged on the engine; The auxiliary coolant flow circulation system is installed on the engine, and the auxiliary coolant flow circulation system is connected to the main coolant flow circulation system; The degassing component is installed on the main coolant flow circulation system or the auxiliary coolant flow circulation system. It is used to keep it closed when the engine is running at a low load, and open it when the engine is running at a high load to remove gas from the coolant.

2. The arrangement structure of an electrically controlled degassing valve according to claim 1, characterized in that: The coolant flow main circulation system comprises: A water pump (5) mounted on the cylinder block (1) of the engine and used to drive the engine coolant to circulate in the coolant flow main circulation system and the coolant flow auxiliary circulation system; A cylinder head water jacket (2), which is mounted on the cylinder block (1) of the engine and is connected to a water pump (5) via a pipeline; An oil cooler (4) is mounted on the cylinder block (1) of the engine, and together with a water pump (5), a cylinder head water jacket (2) and a coolant storage tank mounted on the cylinder block (1) of the engine, forms a first coolant circulation loop; A thermostat (6) and a radiator (3), wherein the thermostat (6) and the radiator (3) are both mounted on a cylinder block (1); the thermostat (6), the radiator (3), the water pump (5), the cylinder head water jacket (2) and the coolant storage tank form a second coolant circulation loop.

3. The arrangement structure of an electrically controlled degassing valve according to claim 2, characterized in that: The coolant flow auxiliary circulation system comprises an expansion water tank, which is connected to the engine cylinder head water jacket (2) through a degassing pipeline. The expansion water tank, the water pump (5), the engine cylinder head water jacket (2) and the coolant storage tank constitute a third coolant circulation loop.

4. The arrangement structure of an electrically controlled degassing valve according to claim 1, characterized in that: The degassing component comprises an electrically controlled one-way degassing valve (7), which is connected to the control system of the engine and is used to open when receiving a high load signal from the control system of the engine, and is used to close when receiving a low load signal from the control system of the engine.

5. The arrangement structure of an electrically controlled degassing valve according to claim 4, characterized in that: The electrically controlled one-way degassing valve (7) is installed on the thermostat (6), and the electrically controlled one-way degassing valve (7) is in communication with the thermostat (6).

6. The arrangement structure of an electrically controlled degassing valve according to claim 4, characterized in that: The electrically controlled one-way degassing valve (7) is mounted on the engine body cylinder head water jacket (2), and the electrically controlled one-way degassing valve (7) is in communication with the interior of the engine body cylinder head water jacket (2).

7. The arrangement structure of an electrically controlled degassing valve according to claim 4, characterized in that: The electrically controlled one-way degassing valve (7) is installed on the heat dissipation water pipe of the radiator (3), and the electrically controlled one-way degassing valve (7) is in communication with the heat dissipation water pipe of the radiator (3).

8. The arrangement structure of an electrically controlled degassing valve according to claim 4, characterized in that: The electrically controlled one-way degassing valve (7) is installed on a pipeline between the engine body cylinder head water jacket (2) and the expansion water tank, and the electrically controlled one-way degassing valve (7) is used to realize the on-off of the heat dissipation water pipe.

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