CN114542257A - Additional cooling system of engine supercharger - Google Patents
Additional cooling system of engine supercharger Download PDFInfo
- Publication number
- CN114542257A CN114542257A CN202210230076.8A CN202210230076A CN114542257A CN 114542257 A CN114542257 A CN 114542257A CN 202210230076 A CN202210230076 A CN 202210230076A CN 114542257 A CN114542257 A CN 114542257A
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- oil
- supercharger
- additional
- water pump
- engine
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- 238000001816 cooling Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 239000003921 oil Substances 0.000 claims abstract description 126
- 239000000110 cooling liquid Substances 0.000 claims abstract description 29
- 239000010705 motor oil Substances 0.000 claims abstract description 26
- 239000002826 coolant Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000011045 prefiltration Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000153 supplemental effect Effects 0.000 claims 13
- 230000004913 activation Effects 0.000 claims 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 238000004939 coking Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 206010033799 Paralysis Diseases 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/06—Cleaning; Combating corrosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/005—Cooling of pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
- F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/06—Cleaning; Combating corrosion
- F01P2011/061—Cleaning or combating corrosion using filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an additional cooling system of an engine supercharger, wherein an additional cooling liquid circulating device comprises a water pump, an engine oil cooler, an additional circulating water pump, a front thermostat, a radiator and a cylinder body; the water pump is arranged on the engine; the engine oil cooler is arranged at the downstream of the water outlet of the water pump and used for cooling the engine oil passing through the supercharger; the additional circulating water pump is arranged at the downstream of the oil cooler, the supercharger is arranged at the downstream of the additional circulating water pump, and part of the cooling liquid passing through the additional circulating water pump enters the supercharger; the front temperature regulator is arranged at the downstream of the water outlet pipe of the supercharger; the thermostat is arranged at the downstream of the front thermostat; the radiator is arranged at the downstream of the thermostat, and the cooling liquid passing through the radiator returns to the water pump through the water inlet of the water pump; the cylinder is arranged downstream of the oil cooler, and another part of the cooling liquid passing through the additional circulating water pump enters the cylinder. Therefore, the problem of heat regeneration at the supercharger can be solved.
Description
Technical Field
The invention relates to the field of engine manufacturing, in particular to an additional cooling system of an engine supercharger.
Background
Some engines are matched with customer hybrid buses, and supercharger faults occur in northern areas. Hybrid power: the automobile is driven by fuel combustion and electric power. The engine has the advantages that when the vehicle is started and stopped, the engine is driven only by the motor, and when the vehicle reaches a certain speed, the engine is started to work. Therefore, the engine can be always kept in the optimal working condition state, the dynamic property is good, the emission is low, and the electric energy source is the engine and only oil is needed to be added. The frequent start and stop of the bus is the most fundamental factor.
After the engine runs at a high speed, the engine is suddenly shut down, so that heat of an exhaust pipe of the engine and a turbine chamber of the supercharger is transferred to a rotor shaft, a bearing and a sealing ring of the supercharger through a turbine, and a so-called 'regenerative' phenomenon is generated. After the engine is stopped, cooling water and lubricating oil stop flowing, the heat of backheating transmission for the supercharger bearing body can not be taken away in time, the temperature of the supercharger bearing body, the rotor shaft, the bearing and the sealing ring is higher than the temperature of the supercharger under a normal working state, the excessively high backheating temperature can cause carbon deposition of the sealing ring of the supercharger rotor shaft and oil coking at the bearing, the sealing and the lubrication of the supercharger are damaged, the bearing and the sealing ring are caused to lose efficacy, and finally the supercharger is caused to be damaged.
At present, an engine supercharger is generally matched with two sets of cooling systems of engine oil and cooling liquid for cooling, such as an engine oil cooling system shown in fig. 1 and a cooling liquid cooling system shown in fig. 2; the supercharger takes away redundant heat through oil cooling, so that the temperature of the oil is increased, and cooling liquid is required to be used for cooling to avoid high-temperature coking. When the engine is stopped, the cooling function of the cooling liquid is stopped, so that the supercharger regenerates heat; otherwise, the operation is normal. The engine is repeatedly started and stopped, and finally the supercharger is damaged because the heat return phenomenon cannot be fundamentally solved.
Two sets of cooling systems of machine oil + coolant cooling that prior art engine supercharger supporting have following defect: when the engine is stopped, the engine oil cooling work at the supercharger is stopped immediately, so that the high-temperature coking of the engine oil is caused, and finally the supercharger is damaged; the prior art has no cooling liquid filtering device, and can not avoid the breakdown of a cooling system caused by the entering of impurities inside or outside an engine;
the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an additional cooling system of an engine supercharger, which can effectively solve the problems in the prior art.
In order to achieve the purpose, the invention provides an additional cooling system of an engine supercharger, which comprises an additional cooling liquid circulating device and an additional engine oil circulating device, wherein the additional cooling liquid circulating device comprises a water pump, an engine oil cooler, an additional circulating water pump, a front temperature regulator, a radiator and a cylinder body; the water pump is arranged on the engine; the engine oil cooler is arranged at the downstream of the water outlet of the water pump and used for cooling the engine oil passing through the supercharger; the additional circulating water pump is arranged at the downstream of the oil cooler, the supercharger is arranged at the downstream of the additional circulating water pump, and a part of the cooling liquid passing through the additional circulating water pump enters the supercharger; the front temperature regulator is arranged at the downstream of the water outlet pipe of the supercharger; the thermostat is arranged at the downstream of the front thermostat; the radiator is arranged at the downstream of the thermostat, and the cooling liquid passing through the radiator returns to the water pump through the water inlet of the water pump; the cylinder is arranged downstream of the oil cooler, and another part of the cooling liquid passing through the additional circulating water pump enters the cylinder.
In a preferred embodiment, the additional cooling system of the engine supercharger further comprises an ECU controller electrically connected to the additional circulating water pump, wherein when the engine is stopped with the water pump simultaneously, the ECU controller controls the additional circulating water pump to be started so as to maintain the coolant in the additional cooling system to continue circulating.
In a preferred embodiment, the additional coolant circulation device further comprises a coolant filter which is arranged upstream of the additional circulation water pump and which is used to pre-filter the coolant entering the additional circulation water pump.
In a preferred embodiment, the cooling liquid filter comprises a front end cover, a rear end cover, a filter element body and a sealing ring; the front end of the front end cover comprises a water inlet nozzle, and the rear end of the front end cover comprises an internal connection interface; the front end of the rear end cover is connected with an external connector, the rear end of the rear end cover comprises a water outlet nozzle, an internal connector of the front end cover is connected with the external connector of the rear end cover in a butt joint mode, and a filter cavity is formed inside the front end cover and the rear end cover; the filter element body is arranged in the filter cavity and divides the filter cavity into a front cavity and a rear cavity; the sealing ring is arranged between the filter element body and the inner cavity of the rear end cover, and is used for enabling cooling liquid entering the front cavity from the water inlet nozzle to enter the rear cavity only after being filtered by the filter element body and finally discharged from the water outlet nozzle.
In a preferred embodiment, the coolant filter further comprises a bushing device, which includes a bayonet matching with the rear contour of the rear end cover, the coolant filter is clamped on the bushing device through the rear end cover, and the bushing device includes a mounting hole for fixing the bushing through a bolt.
In a preferred embodiment, the additional circulating water pump is a CAN communication electronic water pump.
In a preferred embodiment, the additional oil circulating means includes an oil pump, an oil filter, an additional oil pump, and a main oil gallery; the engine oil cooler is arranged at the downstream of an oil outlet of the engine oil pump and used for cooling the engine oil flowing through the supercharger; the oil filter is arranged at the downstream of the oil cooler and is used for filtering the oil flowing through the oil cooler; the additional oil pump is arranged at the downstream of the oil filter, and a part of the oil filtered by the oil filter enters the additional oil pump; the main oil gallery is arranged on the cylinder body, and the other part of engine oil filtered by the oil filter enters the main oil gallery; the additional oil pump can push the engine oil to flow back to the oil sump finally after passing through the supercharger oil inlet pipe, the supercharger and the supercharger oil outlet pipe.
In a preferred embodiment, the additional oil pump is in data communication with the ECU controller, and when the engine is shut down along with the oil pump, the ECU controller is capable of controlling the additional oil pump to be activated as needed to maintain continued circulation of oil in the oil cooler and supercharger.
Compared with the prior art, the additional cooling system of the engine supercharger has the following beneficial effects: when the engine is shut down and the water pump and the oil pump are also shut down simultaneously, the EUC controller can control the additional circulating water pump and the additional oil pump to start up according to the system requirements and work for a period of time, so that the problem of coking of the engine oil due to high temperature caused by heat generated at the supercharger is avoided. Meanwhile, a cooling liquid filter is additionally arranged at the upper stream of the additional circulating water pump, so that the phenomenon of blockage caused by the fact that impurities inside or outside the engine enter the electronic water pump is avoided, and finally the cooling system is paralyzed.
Drawings
FIG. 1 is a schematic diagram of an arrangement of a supercharger oil cooling system according to one embodiment of the prior art;
FIG. 2 is a schematic diagram of an arrangement of a supercharger coolant cooling system according to one embodiment of the prior art;
FIG. 3 is a schematic diagram of an apparatus arrangement of an additional coolant circulation device according to an embodiment of the present invention;
FIG. 4 is a schematic view of an arrangement of an additional oil circulation device according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional front view of a coolant filter according to an embodiment of the invention;
FIG. 6 is a schematic front view of an additional circulating water pump according to an embodiment of the present invention;
FIG. 7 is a schematic top view of an additional circulating water pump according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an apparatus arrangement of an additional coolant circulation device according to another embodiment of the present invention;
FIG. 9 is a schematic diagram of an arrangement of an additional oil circulation device according to an embodiment of the present invention
Fig. 10 is a schematic view of the arrangement of an additional oil circulation device according to another embodiment of the present invention.
Description of the main reference numerals:
10-a cooling liquid filter, 11-a front end cover, 12-a sealing ring, 13-a rear end cover, 14-a filter element body, 15-a lining device, 20-an additional circulating water pump, 21-a water pump inlet, 22-a water pump outlet, 23-a water pump fixing support, 24-a water pump wiring harness interface and 25-a water pump body.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 3, an additional cooling system of an engine supercharger according to a preferred embodiment of the present invention includes an additional coolant circulation device including a water pump, an oil cooler, an additional circulation water pump 20, a front thermostat, a radiator, and a cylinder block, and an additional oil circulation device. The water pump is arranged on the engine. The engine oil cooler is arranged at the downstream of a water outlet of the water pump and used for cooling the engine oil passing through the supercharger. An additional circulation water pump 20 is provided downstream of the oil cooler, and a supercharger is provided downstream of the additional circulation water pump 20, and a part of the coolant passing through the additional circulation water pump 20 enters the supercharger. The front temperature regulator is arranged at the downstream of the water outlet pipe of the supercharger. The thermostat is disposed downstream of the front thermostat. The radiator is arranged at the downstream of the thermostat, and the cooling liquid passing through the radiator returns to the water pump through the water inlet of the water pump. The cylinder is arranged downstream of the oil cooler and another part of the coolant, which passes the additional circulating water pump 20, enters the cylinder.
Referring to fig. 3, in some embodiments, the additional cooling system of the engine supercharger further includes an ECU controller electrically connected to the additional circulating water pump 20, and when the engine is stopped and the water pump is stopped, the ECU controller controls the additional circulating water pump 20 to start to maintain the coolant in the additional cooling system to continue to circulate. The additional circulating water pump 20 of the present embodiment is a CAN communication electronic water pump, but the present invention is not limited thereto.
As shown in fig. 4 to 5, in some embodiments, the additional coolant circulation device further includes a coolant filter 10 disposed upstream of the additional circulation water pump 20, and the coolant filter 10 is used to pre-filter the coolant entering the additional circulation water pump 20.
Referring to fig. 4 to 5, in some embodiments, the coolant filter 10 includes a front cover 11, a rear cover 13, a filter element body 14, and a sealing ring 12. The front end of the front end cover 11 comprises a water inlet nozzle, and the rear end comprises an internal connection port. The front end of the rear end cover 13 is connected with the external connector, the rear end of the rear end cover 13 comprises a water outlet nozzle, the internal connector of the front end cover 11 is connected with the external connector of the rear end cover 13 in a butt joint mode, and a filter cavity is formed inside the front end cover 11 and the rear end cover 13. The filter element body 14 is disposed in the filter chamber, and the filter chamber is divided into a front chamber and a rear chamber by the filter element body 14. The sealing ring 12 is arranged between the filter element body 14 and the inner cavity of the rear end cover 13, and the sealing ring 12 is used for enabling the cooling liquid entering the front cavity from the water inlet nozzle to enter the rear cavity only after being filtered by the filter element body 14 and finally to be discharged from the water outlet nozzle.
In some embodiments, the coolant filter 10 further includes a bushing arrangement 15. The lining device 15 comprises a bayonet matched with the shape of the rear part of the rear end cover 13, the cooling liquid filter 10 is clamped on the lining device 15 through the rear end cover 13, and the lining device 15 comprises a mounting hole which is used for fixing the lining through a bolt.
As shown in fig. 6 to 7, in some embodiments, the additional circulating water pump 20 of the present embodiment is a CAN communication electronic water pump, but the present invention is not limited thereto. The additional circulating water pump 20 of this embodiment mainly includes a water pump inlet 21, a water pump outlet 22, a water pump fixing bracket 23, a water pump harness interface 24, a water pump body 25, and the like. The water pump fixing bracket 23 is used for fixedly connecting the additional circulating water pump 20, and the water pump wiring harness interface 24 is used for connecting a power supply and is in data connection with an ECU controller of an engine.
As shown in fig. 8, in some embodiments, the water intake position of the oil filter of the present invention is not constant, and the water intake position may be changed according to a change in the position where the supercharger is provided. For example, water is taken from the cylinder as shown in fig. 8, but the present invention is not limited thereto.
As shown in fig. 9, in some embodiments, the additional oil circulation device includes an oil pump, an oil filter, an additional oil pump, and a main oil gallery. An oil pump is provided on the engine, the oil pump being configured to draw oil from the oil pan, and an oil cooler is provided downstream of an oil outlet of the oil pump, the oil cooler being configured to cool oil flowing through the supercharger. An oil filter is disposed downstream of the oil cooler, the oil filter being configured to filter oil flowing through the oil cooler. The additional oil pump is arranged at the downstream of the oil filter, and a part of the oil filtered by the oil filter enters the additional oil pump. And the main oil gallery is arranged on the cylinder body, and the other part of engine oil filtered by the oil filter enters the main oil gallery. The additional oil pump can push the engine oil to flow back to the oil sump finally after passing through the supercharger oil inlet pipe, the supercharger and the supercharger oil outlet pipe.
Referring to FIG. 9, in some embodiments, the additional oil pump is in data communication with the ECU controller, which is capable of controlling the additional oil pump to be activated as needed to maintain continued circulation of oil in the oil cooler and supercharger when the engine is shut down in conjunction with the oil pump.
As shown in fig. 10, in some embodiments, the position of the additional oil pump is also unchanged, such as but not limited to the position downstream of the main oil gallery as shown in fig. 10. The setting position of the additional oil pump can be adjusted at any time according to the setting position of the supercharger. In addition, an oil filtering device can be additionally arranged at an oil inlet of the additional oil pump so as to further ensure that impurities are prevented from entering the additional oil pump.
In some embodiments, the principle of the additional coolant circulation device of the present invention is illustrated as follows: the front end cap 11 may be integrally connected to the rear end cap 13 by friction welding. The internal filter element body 14 can be formed by assembling a plurality of layers of filter screens and a filter screen framework, and the filtering capacity of the filter element body 14 can be determined by adjusting the mesh size and the density of the filter screens and the layer number of the filter screens. And also determines the resistance of the cooling device. The filter element body 14 is designed into a circular truncated cone structure, so that cooling liquid can flow out from a gap between the filter element body and the outer shell conveniently, and the size of the filter element body mainly influences the replacement period of the water filter. The filter element body 14 and the step of the rear end cover 13 form a sealing cavity through the boss design of the front end cover 11, and the sealing ring 12 is positioned in the sealing cavity, and the tail part of the filter element body 14 is inserted into the clamping groove of the rear end cover 13 and used for preventing the axial movement of the filter element body. The water filter device is supported and fastened on the bracket through a lining device 15 in the mounting hole, and the water filter device is small in overall structure design and complete in function. The connection between the front end cap 11 and the rear end cap 13 may be in various connection forms such as a thread, a snap connection, etc., and the present invention is not limited herein.
Referring to fig. 6 to 7, in some embodiments, a stator and a rotor are respectively set inside the electronic water pump, wherein the stator generates an excitation magnetic field. The rotor slots have armature windings therein which rotate under the influence of an excitation magnetic field when energized. The impeller and the rotor are coaxial, namely the impeller rotates at a high speed in the pump body, liquid in the pump body rotates along with the impeller, the liquid is thrown out by the impeller at the outlet under the action of centrifugal force, a vacuum low-pressure area is formed in the center of the impeller after the liquid is thrown out, cooling liquid flows into the water pump through the water inlet pipe of the water pump under the action of external pressure, the pressure is gradually increased along with the increase of the thrown liquid, and finally the cooling liquid is discharged from the water outlet 22 of the water pump.
The cooling liquid flows into the additional circulating water pump 20 through the water pump inlet 21 and flows out from the water pump outlet 22 under the centrifugal force action of the impeller, wherein the water pump outlet 22 and the water pump inlet are both arranged on the water pump body 25. The additional circulating water pump 20 is fixed on the corresponding stabilizing frame through a water pump fixing bracket 23, and receives a command signal from the ECU controller through a water pump wiring harness interface 24.
In some embodiments, the additional coolant circulation device of the present invention operates in the following modes:
1. when the engine runs normally, the electronic water pump (receiving the engine message is 0) does not work; 2. when the engine is stopped, the electronic water pump (receiving the message of the engine is 1) runs at a set time length and a set rotating speed and is used for cooling the water pump of the supercharger; 3. when the ECU system reports the error or the electronic pump connector is damaged, the normal message receiving can not be completed, and the electronic pump runs for a set time according to the specific rotating speed. 4. If the electronic water pump does not work according to the normal instruction, the ECU receives the message and displays an alarm signal on the display screen. 5. If the stop time is too short, so that the instruction 2 is not completed, the electronic water pump automatically updates the operation mode and executes the operation mode according to 1.
Similarly, the operation mode of the additional oil circulation device is similar to that of the additional cooling liquid circulation device, and the description thereof is omitted.
In summary, the additional cooling system of the engine supercharger of the present invention has the following advantages: when the engine is shut down and the water pump and the oil pump are also shut down simultaneously, the EUC controller can control the additional circulating water pump and the additional oil pump to start up according to the system requirements and work for a period of time, so that the problem of coking of the engine oil due to high temperature caused by heat generated at the supercharger is avoided. Meanwhile, a cooling liquid filter is additionally arranged at the upper stream of the additional circulating water pump, so that the phenomenon of blockage caused by the fact that impurities inside or outside the engine enter the electronic water pump is avoided, and finally the cooling system is paralyzed.
The foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. An additional cooling system of a supercharger of an engine, comprising an additional coolant circulating means and an additional oil circulating means, the additional coolant circulating means comprising:
a water pump provided on the engine;
the engine oil cooler is arranged at the downstream of the water outlet of the water pump and is used for cooling the engine oil passing through the supercharger;
an additional circulating water pump provided downstream of the oil cooler, the supercharger being provided downstream of the additional circulating water pump, a part of the coolant passing through the additional circulating water pump entering the supercharger;
the front temperature regulator is arranged at the downstream of the water outlet pipe of the supercharger;
a thermostat disposed downstream of the front thermostat;
the radiator is arranged at the downstream of the thermostat, and the cooling liquid passing through the radiator returns to the water pump through a water inlet of the water pump; and
a cylinder disposed downstream of the oil cooler, another portion of the coolant passing through the additional circulating water pump entering the cylinder.
2. The supplemental cooling system for an engine supercharger of claim 1 further comprising an ECU controller electrically connected to the supplemental circulating water pump, the ECU controller controlling the supplemental circulating water pump to be activated when the engine is stopped with the water pump simultaneously stopped, to maintain continued circulation of coolant in the supplemental cooling system.
3. The supplemental cooling system for an engine supercharger of claim 1, wherein the supplemental coolant circulation device further includes a coolant filter disposed upstream of the supplemental water circulation pump, the coolant filter being configured to pre-filter coolant entering the supplemental water circulation pump.
4. The supplemental cooling system for an engine supercharger of claim 3, wherein the coolant filter comprises:
the front end of the front end cover comprises a water inlet nozzle, and the rear end of the front end cover comprises an internal connection port;
the back end cover is provided with an external front end connector, the back end of the back end cover comprises a water outlet nozzle, an internal connection port of the front end cover is in butt joint with the external connection port of the back end cover, and a filter cavity is formed inside the front end cover and the back end cover;
a filter element body disposed within the filter cavity, the filter element body dividing the filter cavity into a front cavity and a rear cavity; and
and the sealing ring is arranged between the filter element body and the inner cavity of the rear end cover, and is used for enabling the cooling liquid entering the front cavity from the water inlet nozzle to enter the rear cavity only after being filtered by the filter element body and finally discharged from the water outlet nozzle.
5. The supplemental cooling system for an engine supercharger of claim 4, wherein the coolant filter further includes a bushing device including a bayonet fitting to the rear contour of the rear end cover, the coolant filter being snap fitted to the bushing device through the rear end cover, the bushing device including a mounting hole for fastening the bushing by a bolt.
6. The additional cooling system of the engine supercharger of claim 1, wherein the additional circulating water pump is a CAN communication electronic water pump.
7. The additional cooling system of the engine supercharger of claim 2, wherein the additional oil circulating means comprises:
an oil pump disposed on the engine, the oil pump to draw oil from an oil pan, the oil cooler disposed downstream of an oil outlet of the oil pump, the oil cooler to cool oil flowing through the supercharger;
an oil filter disposed downstream of the oil cooler, the oil filter to filter oil flowing through the oil cooler;
an additional oil pump disposed downstream of the oil filter, a part of the oil filtered by the oil filter entering the additional oil pump; and
a main oil gallery provided on the cylinder block, into which another part of the engine oil filtered by the oil filter enters;
the additional oil pump can push engine oil to flow back to the oil sump finally after passing through the supercharger oil inlet pipe, the supercharger and the supercharger oil outlet pipe.
8. The supplemental cooling system for an engine supercharger of claim 2 wherein the supplemental oil pump is in data communication with the ECU controller, the ECU controller being capable of controlling activation of the supplemental oil pump as needed to maintain continued circulation of oil in the oil cooler and supercharger when the engine is shut down in conjunction with the oil pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210230076.8A CN114542257A (en) | 2022-03-09 | 2022-03-09 | Additional cooling system of engine supercharger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210230076.8A CN114542257A (en) | 2022-03-09 | 2022-03-09 | Additional cooling system of engine supercharger |
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| CN114542257A true CN114542257A (en) | 2022-05-27 |
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