CN114517731B - Pressure stabilizer for engine cooling system - Google Patents

Pressure stabilizer for engine cooling system Download PDF

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Publication number
CN114517731B
CN114517731B CN202210414811.0A CN202210414811A CN114517731B CN 114517731 B CN114517731 B CN 114517731B CN 202210414811 A CN202210414811 A CN 202210414811A CN 114517731 B CN114517731 B CN 114517731B
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China
Prior art keywords
pressure
water tank
pressure relief
main water
pipe
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CN114517731A (en
Inventor
王国辉
邵明鹏
童顺波
李国涛
周茂森
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Huafeng Power Co ltd
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Huafeng Power Co ltd
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Priority to CN202210414811.0A priority Critical patent/CN114517731B/en
Publication of CN114517731A publication Critical patent/CN114517731A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0276Draining or purging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/14Controlling of coolant flow the coolant being liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/14Controlling of coolant flow the coolant being liquid
    • F01P2007/146Controlling of coolant flow the coolant being liquid using valves

Abstract

The invention provides a pressure stabilizing device for an engine cooling system, which comprises an engine water-cooling circulation pipeline, a radiating fin and a main water tank, wherein the top end of the main water tank is communicated with an auxiliary water tank through a pressure relief pipe; this scheme can be more accurate control pressure release's accuracy, guarantee that the pressure boost hole can accurately be located the pressure release intraductally, simultaneously spout and spacing post can be accurate be in the pressure release hole in the pressure release intraductally, effectively increased water tank pressure relief device's life to the pressure release to the water tank is more accurate, guarantees under the best pressure of relative invariant, promotes the cooling efficiency of engine to the biggest.

Description

Pressure stabilizer for engine cooling system
Technical Field
The invention relates to the technical field of engine cooling systems, in particular to a pressure stabilizing device for an engine cooling system.
Background
The heat generated in the working process of the engine needs a cooling system to exchange heat, the most common cooling system is a water cooling system, the heat of the engine is brought to a radiating fin by using the circulation of cooling liquid in the water cooling system, the radiating fin is blown by a fan of the engine to be cooled, and the cooled cooling liquid enters the engine again to be subjected to heat dissipation circulation system; the cooling liquid is in the water tank and the circulating pipeline, and the water tank is provided with a water tank cover for periodically filling the cooling liquid.
According to the forced pressure-discharge scald-proof water tank cover disclosed by the application number CN02247839.6, the existing water tank cover arranged on the water tank has the function of adjusting the pressure of cooling liquid in the water tank, and the pressure of the cooling liquid in the water tank can be adjusted in time to ensure the pressure balance; however, the existing water tank cover sealing part is made of corrosion-resistant rubber, the sealing part is opened and closed by using the deformation characteristic of rubber, the flexibility of the rubber is poor after the rubber is used for a period of time, so that the sealing is not tight, and the service life of the water tank cover is influenced.
Meanwhile, a spring for fixing compression force is arranged on the water tank cover, the inlet and outlet actions of cooling liquid in the water tank are controlled through the preset spring compression force, the cooling liquid is discharged through the circumferential edge of the rubber pad when being discharged outwards, and the force between the spring and the cooling liquid is not radial, so that the pressure of the cooling liquid in the water tank is controlled by the spring to be inaccurate, the preset pressure value of the cooling liquid is difficult to control, and the best cooling effect of the cooling liquid cannot be guaranteed.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a pressure stabilizer for an engine cooling system, which can effectively prolong the service life and control the pressure in a water tank more accurately.
In order to solve the technical problems, the invention provides the following technical scheme:
a pressure stabilizing device for an engine cooling system comprises an engine water-cooling circulation pipeline, a radiating fin and a main water tank, wherein the top end of the main water tank is communicated with an auxiliary water tank through a pressure relief pipe, one side of the pressure relief pipe, which is close to the main water tank, is provided with a pressure pipe communicated with the main water tank, and a control assembly for controlling the internal pressure value of the main water tank is arranged in the pressure pipe; the control assembly comprises a pressure relief rod which is coaxial and is arranged in the pressure pipe in a sliding sealing mode, the front section of the pressure relief rod is a sliding head matched with the inner wall of the pressure pipe, and a plurality of sealing rings for enhancing the sealing performance are sleeved on the sliding head; the rear section of the pressure relief rod is a cylindrical control part which is coaxial with the sliding head, one side of the control part, which is close to the sliding head, is provided with a pressure relief hole for releasing the pressure of the main water tank in a penetrating way, one side of the control part, which is far away from the sliding head, is provided with a plurality of limiting columns for supporting the rotation of the pressure relief rod, a pressure boost hole for increasing the pressure of the main water tank is arranged at a position, which is positioned between the limiting columns and the pressure relief hole, on the control part, and a pressure control assembly is arranged in the pressure boost hole; a first supporting spring is coaxially arranged at one end, far away from the sliding head, in the pressure pipe, and one end of the first supporting spring is abutted against the control part; the control part penetrates through the pressure relief pipe and is tightly attached to the pressure relief pipe.
The following is a further optimization of the above technical solution of the present invention:
the pressure control assembly comprises a pressure stabilizing part which is slidably and hermetically arranged in the pressurizing hole, a groove is annularly formed in the middle section of the outer wall of the pressure stabilizing part, a limiting plate is arranged on the inner wall of the pressurizing hole at a position corresponding to the groove, and a plurality of second supporting springs for supporting the pressure stabilizing part are arranged on the limiting plate; the inside of steady voltage portion has seted up the backward flow passageway coaxially, the backward flow passageway is equipped with the opening in the one end that steady voltage portion is close to the expansion tank, just the backward flow passageway is run through steady voltage portion and is seted up a plurality of backward flow branch road on its lateral wall in the one end that steady voltage portion kept away from the expansion tank.
Further: and a baffle plate for limiting the position of the pressure relief rod is arranged in the pressure pipe at the position of one side of the sliding head close to the main water tank.
Further: and sliding grooves matched with the limiting columns are formed in the positions, corresponding to the limiting columns, in the pressure tube.
Further: the pressurizing hole and the axis of the pressure relief hole are arranged at 90 degrees.
And further: the sliding groove limits the pressure relief rod to rotate for 90 degrees.
Further: the control part is fixedly connected with the sliding head through a connecting part.
By adopting the technical scheme, the invention has ingenious design, when the engine is in a static state, the pressure in the main water tank is lower, the sliding head is pressed against the baffle plate by the first supporting spring, the pressure relief pipe is sealed by the control part, the pressure relief hole is arranged in the pressure pipe at the moment, and the backflow branch is blocked by the pressurization hole under the support of the second supporting spring due to the action of the notch on the pressure stabilizing part and the limiting plate, so that the main water tank is closed.
At the initial stage of starting the engine, because the temperature in the main water tank is slowly increased, the pressure in the main water tank is higher than the pressure in the auxiliary water tank, and the pressure in the main water tank pushes the pressure stabilizing part to be positioned in the pressurizing hole, so that the pressure of the main water tank is prevented from being released in advance.
In the working process of an engine, in order to ensure the best constant pressure in a main water tank, the temperature of cooling liquid rises, the cooling liquid in the main water tank is pressurized due to the rise of the temperature, the boiling point of the cooling liquid can rise to 90 degrees, the lower boiling point temperature of the cooling liquid is prevented from influencing the heat dissipation effect, the pressure in the main water tank can enable a first supporting spring to be compressed, the first supporting spring can be contracted only when the preset pressure value is reached, the pressure in the main water tank is higher, a pressure pipe is communicated with the main water tank and can receive the same pressure, when the pressure in the main water tank reaches 108 kilopascals, the pressure in the main water tank can push a sliding head to slide to one side close to the first supporting spring, meanwhile, a limiting column moves in a sliding groove, a pressure relief rod can rotate in the pressure pipe under the action of the sliding groove and the limiting column, the pressure relief rod slowly moves to one side and rotates for 90 degrees, at this moment, the pressure relief hole can move to in the pressure relief pipe and be linked together main water tank and expansion tank, high-temperature gas in the main water tank is at first arranged to expansion tank inside through the pressure relief hole, after gaseous exhaust, the coolant liquid of high temperature also can enter into expansion tank partly in, with this pressure of guaranteeing in the main water tank can not be too big, after pressure in the main water tank reduces gradually, first supporting spring can push up pressure relief pole reverse direction and remove, the pressure relief pole rotates under the effect of spout and spacing post and removes to initial position, seal main water tank once more, the pressure through in the repeated main water tank of this action is invariable.
After the engine stops working, the volume of the cooling liquid in the redundant auxiliary water tank of the cooling liquid in the main water tank is reduced after the cooling liquid is completely cooled, at the moment, the pressure in the auxiliary water tank is higher than the pressure in the main water tank, relative negative pressure can be formed in the main water tank, the pressure stabilizing part moves downwards in the pressurizing hole under the suction force of the main water tank and the pressure of the auxiliary water tank, at the moment, the second supporting spring contracts only after reaching a preset force, the opening and closing of the working process are controlled by arranging the second supporting spring, the pressure stabilizing part moves downwards after the second supporting spring is stressed and compressed, the plurality of backflow branches extend out of the pressurizing hole, at the moment, the main water tank and the auxiliary water tank are in a communicated state, in order to keep the pressure balance, the cooling liquid in the auxiliary water tank is discharged into the main water tank through the backflow branch through the backflow passage, the pressure stabilizing part moves upwards under the action of the second supporting spring after the pressure balance between the main water tank and the auxiliary water tank, the pressurizing hole is closed, and the pressure relief pipe extends to the bottom of the auxiliary water tank, so that the cooling liquid in the auxiliary water tank firstly enters the main water tank.
This scheme can be more accurate control pressure release's accuracy to can effectively increase the leakproofness under the effect of sealing washer, can guarantee under the effect of baffle that the sliding head can not remove excessively because of first supporting spring, guarantee that the pressure boost hole can accurately be located the pressure release intraductally, the spout can be accurate with spacing post in the pressure release hole simultaneously.
The first supporting spring is connected to the pressure relief rod in a propping mode, and the rotation of the pressure relief rod cannot be influenced.
Compared with the existing water tank cover, the water tank cover does not use a rubber pad, the problem that the sealing is not tight due to aging of the rubber pad is avoided, the service life of the water tank pressure relief device is effectively prolonged, the water tank pressure relief is more accurate, the cooling effect of an engine is directly influenced, and the cooling efficiency of the engine is improved to the maximum under the relatively constant optimal pressure.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic view of an installation structure of the voltage stabilizer;
FIG. 3 is a schematic view of a pressure relief rod in the pressure stabilizer;
FIG. 4 is a schematic view of the pressure controlling state of the pressure relief rod in the pressure stabilizer;
FIG. 5 is a side view of FIG. 3;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of the pressure control assembly in the pressure relief lever in a sealed state;
FIG. 8 is a schematic view of the pressure control assembly in the pressure relief lever in an operating state;
FIG. 9 is a schematic view of the internal structure of the pressure tube;
fig. 10 is an enlarged view at B in fig. 1.
Detailed Description
The embodiment is as follows: as shown in fig. 1-10, a pressure stabilizer for an engine cooling system comprises an engine water-cooling circulation pipeline, a cooling fin and a main water tank 1, wherein the top end of the main water tank 1 is communicated with an auxiliary water tank 2 through a pressure relief pipe 3, a pressure pipe 4 communicated with the pressure pipe is arranged on one side of the pressure relief pipe 3 close to the main water tank 1, and a control component for controlling the internal pressure value of the main water tank 1 is arranged in the pressure pipe 4; the control assembly comprises a pressure relief rod which is coaxial and is arranged in the pressure pipe 4 in a sliding sealing mode, the front section of the pressure relief rod is a sliding head 5 matched with the inner wall of the pressure pipe 4, and a plurality of sealing rings for enhancing the sealing performance are sleeved on the sliding head 5; the rear section of the pressure relief rod is a cylindrical control part 6 which is coaxial with the sliding head 5, a pressure relief hole 7 for releasing the pressure of the main water tank 1 is arranged on one side, close to the sliding head 5, of the control part 6 in a penetrating manner, a plurality of limiting columns 9 for supporting the rotation of the pressure relief rod are arranged on one side, far away from the sliding head 5, of the control part 6, a pressurizing hole 8 for increasing the pressure of the main water tank 1 is formed in the position, located between the limiting columns 9 and the pressure relief hole 7, of the control part 6, and a pressure control assembly is arranged in the pressurizing hole 8; a first supporting spring 10 is coaxially arranged at one end, far away from the sliding head 5, in the pressure pipe 4, and one end of the first supporting spring 10 is abutted against the control part 6; the control part 6 penetrates through the pressure relief rod and is tightly attached to the pressure relief rod.
Referring to fig. 1, the coolant brings the heat of the engine into the water tank according to the arrow direction shown in the figure, and then the heat is dissipated through the heat dissipation fins, and the cooled coolant is discharged from the lower ends of the heat dissipation fins to dissipate the heat of the engine again and enter the circulation.
The pressure control assembly comprises a pressure stabilizing part 11 which is slidably and hermetically arranged in a pressurizing hole 8, a groove 12 is annularly formed in the middle section of the outer wall of the pressure stabilizing part 11, a limiting plate 13 is arranged on the inner wall of the pressurizing hole 8 at a position corresponding to the groove 12, and a plurality of second supporting springs 14 for supporting the pressure stabilizing part 11 are arranged on the limiting plate 13; the inside of the pressure stabilizing part 11 is coaxially provided with a backflow channel 15, the backflow channel 15 is provided with an opening at one end of the pressure stabilizing part 11 close to the auxiliary water tank 2, and the backflow channel 15 penetrates through the pressure stabilizing part 11 at one end of the pressure stabilizing part 11 far away from the auxiliary water tank 2 and is provided with a plurality of backflow branches 16 on the side wall of the backflow channel 15.
The pressure pipe 4 is internally provided with a baffle 17 for limiting the position of the pressure relief rod at the position of one side of the sliding head 5 close to the main water tank 1, and a through hole is further formed in the middle of the baffle 17 and used for pushing the sliding head 5 against the pressure in the main water tank 1 to slide.
And sliding grooves 18 matched with the limiting columns 9 are formed in the positions, corresponding to the limiting columns 9, in the pressure pipe 4.
The pressurizing hole 8 and the axis of the pressure relief hole 7 are arranged at 90 degrees, the axis of the pressure relief rod is used as a projection view angle, and the pressurizing hole 8 and the pressure relief hole 7 are in mutually vertical relation in the axial direction.
The sliding groove 18 limits the 90-degree rotation of the pressure relief rod, the length of the sliding groove 18 is limited, and only the 90-degree reciprocating rotation of the pressure relief rod is supported.
The control part 6 is fixed to the slider 5 by a connecting part 19.
When the engine is in a static state, the pressure in the main water tank 1 is lower, the sliding head 5 is pushed against the baffle 17 by the first supporting spring 10, the pressure relief pipe 3 is sealed by the control part 6, the pressure relief hole 7 is arranged in the pressure pipe 4, and the backflow branch 16 is blocked by the pressure relief hole 8 under the support of the second supporting spring 14 due to the effect of the groove 12 on the pressure stabilizing part 11 and the limiting plate 13, so that the main water tank 1 is sealed.
At the initial stage of starting the engine, because the temperature in the main water tank 1 rises slowly, the pressure in the main water tank 1 is increased slowly, the pressure in the auxiliary water tank 2 is higher than the pressure in the main water tank 1, and the pressure in the main water tank 1 pushes the pressure stabilizing part 11 in the pressurizing hole 8, so that the pressure in the main water tank 1 is prevented from being released to the main water tank 1 in advance.
In the working process of an engine, in order to ensure the optimal constant pressure in the main water tank 1, the temperature of the cooling liquid rises, the cooling liquid in the main water tank 1 is pressurized due to the temperature rise, the boiling point of the cooling liquid can rise to 112 degrees, the lower boiling point temperature of the cooling liquid is prevented from influencing the heat dissipation effect, the pressure in the main water tank 1 can compress the first supporting spring 10, the first supporting spring 10 can contract only when reaching a preset pressure value, as the pressure in the main water tank 1 is higher, and the pressure pipe 4 is communicated with the main water tank 1 and can bear the same pressure, when the pressure in the main water tank 1 reaches 108 kilopascals, the pressure in the main water tank 1 can push the sliding head 5 to slide towards one side close to the first supporting spring 10, meanwhile, the limiting column 9 moves in the sliding groove 18, and the pressure relief rod can rotate in the pressure pipe 4 under the action of the sliding groove 18 and the limiting column 9 on the premise of sealing the pressure relief pipe 3, the pressure release rod slowly moves to one side and rotates 90 degrees, at the moment, the pressure release hole 7 can move into the pressure release pipe 3 and is communicated with the main water tank 1 and the auxiliary water tank 2, high-temperature gas in the main water tank 1 is firstly discharged into the auxiliary water tank 2 through the pressure release hole 7, after the gas is discharged, high-temperature cooling liquid can enter a part of the auxiliary water tank 2 due to expansion, so that the pressure in the main water tank 1 is ensured not to be overlarge, after the pressure in the main water tank 1 is gradually reduced, the first supporting spring 10 can push the pressure release rod to move in the opposite direction, the pressure release rod rotates under the action of the sliding groove 18 and the limiting column 9 to move to the initial position, the main water tank 1 is sealed again, and the pressure in the main water tank 1 is constant through the action.
After the engine stops working, the volume of the coolant in the redundant auxiliary water tank 2 of the coolant in the main water tank 1 is reduced after the coolant is completely cooled, at this time, the pressure in the auxiliary water tank 2 is higher than the pressure in the main water tank 1, relative negative pressure is formed in the main water tank 1, the pressure stabilizing part 11 receives the suction force from the main water tank 1 and the pressure of the auxiliary water tank 2 and moves downwards in the pressurizing hole 8, at this time, the second supporting spring 14 contracts only after reaching a preset force, the opening and closing of the working process are controlled by arranging the second supporting spring 14, after the second supporting spring 14 is compressed by force, the pressure stabilizing part 11 moves downwards, the plurality of backflow branch pipes 16 extend out of the pressurizing hole 8, at this time, the main water tank 1 and the auxiliary water tank 2 are in a communication state, in order to keep the balance of the pressure, the coolant in the auxiliary water tank 2 is discharged into the main water tank 1 through the backflow branch pipes 16 through the backflow passage 15, after the pressure between the main water tank 1 and the auxiliary water tank 2 is balanced, the pressure stabilizing part 11 moves upwards under the action of the second supporting spring 14 to seal the pressurizing hole 8, and the pressure relief pipe 3 extends to the bottom of the auxiliary water tank 2, so that the cooling liquid in the auxiliary water tank 2 firstly enters the main water tank 1.
This scheme can be more accurate control pressure release's accuracy to can effectively increase the leakproofness under the effect of sealing washer, can guarantee under the effect of baffle 17 that slider 5 can not remove excessively because of first supporting spring 10, guarantee pressure boost hole 8 can be accurate be located pressure release pipe 3, simultaneously spout 18 and spacing post 9 can be accurate be in pressure release pipe 3 with pressure release hole 7.
The first supporting spring 10 is connected with the pressure relief rod in a propping mode, and the rotation of the pressure relief rod cannot be influenced.
Compared with the existing water tank cover, the water tank cover does not use a rubber pad, the problem that the sealing is not tight due to aging of the rubber pad is avoided, the service life of the water tank pressure relief device is effectively prolonged, the pressure relief of the water tank is more accurate, the cooling effect of an engine is directly influenced, and the cooling efficiency of the engine is improved to the maximum under the relatively constant optimal pressure.
In the present embodiment, the shape of the pressure relief pipe 3 is not limited, as long as it can achieve sealing between the pressure relief rod and the pressure relief pipe 3, and there are many ways, and those skilled in the art can easily use many ways to achieve this limitation, and this embodiment is not limited in particular.
In the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a voltage regulator device for engine cooling system, includes engine water-cooling circulation pipeline and fin, main water tank (1), its characterized in that: the top end of the main water tank (1) is communicated with the auxiliary water tank (2) through a pressure relief pipe (3), one side, close to the main water tank (1), of the pressure relief pipe (3) is provided with a pressure pipe (4) communicated with the pressure pipe, and a control assembly used for controlling the internal pressure value of the main water tank (1) is arranged in the pressure pipe (4);
the control assembly comprises a pressure relief rod which is coaxial and is arranged in the pressure pipe (4) in a sliding sealing mode, the front section of the pressure relief rod is a sliding head (5) matched with the inner wall of the pressure pipe (4), and a plurality of sealing rings for enhancing the sealing performance are sleeved on the sliding head (5);
the rear section of the pressure relief rod is a cylindrical control part (6) which is coaxial with the sliding head (5), one side, close to the sliding head (5), of the control part (6) is provided with a pressure relief hole (7) for releasing the pressure of the main water tank (1) in a penetrating manner, one side, far away from the sliding head (5), of the control part (6) is provided with a plurality of limiting columns (9) for supporting the rotation of the pressure relief rod, a pressurizing hole (8) for increasing the pressure of the main water tank (1) is formed in the position, located between the limiting columns (9) and the pressure relief hole (7), of the control part (6), and a pressure control assembly is arranged in the pressurizing hole (8);
a first supporting spring (10) is coaxially arranged at one end, far away from the sliding head (5), in the pressure pipe (4), and one end of the first supporting spring (10) is abutted against the control part (6);
the control part (6) penetrates through the pressure relief pipe (3) and is tightly attached to the pressure relief pipe;
the pressure control assembly comprises a pressure stabilizing part (11) which is slidably and hermetically arranged in the pressurizing hole (8), a notch (12) is annularly formed in the middle section of the outer wall of the pressure stabilizing part (11), a limiting plate (13) is arranged on the inner wall of the pressurizing hole (8) at a position corresponding to the notch (12), and a plurality of second supporting springs (14) used for supporting the pressure stabilizing part (11) are arranged on the limiting plate (13); the backflow pipeline is characterized in that a backflow channel (15) is coaxially arranged inside the pressure stabilizing part (11), an opening is formed in one end, close to the auxiliary water tank (2), of the pressure stabilizing part (11) of the backflow channel (15), one end, far away from the auxiliary water tank (2), of the backflow channel (15) penetrates through the pressure stabilizing part (11) at the pressure stabilizing part (11), and a plurality of backflow branches (16) are arranged on the side wall of the backflow channel.
2. A pressure stabilizer apparatus for an engine cooling system according to claim 1, characterized in that: and a baffle (17) for limiting the position of the pressure relief rod is arranged at the position, close to one side of the main water tank (1), of the sliding head (5) in the pressure pipe (4).
3. A pressure stabilizer apparatus for an engine cooling system according to claim 1, characterized in that: and sliding grooves (18) matched with the limiting columns (9) are formed in the positions, corresponding to the limiting columns (9), in the pressure pipe (4).
4. A pressure stabilizer apparatus for an engine cooling system according to claim 1, characterized in that: the pressurizing hole (8) and the axis of the pressure relief hole (7) are arranged at an angle of 90 degrees.
5. A pressure stabilizer apparatus for an engine cooling system according to claim 3, characterized in that: the sliding groove (18) limits the pressure relief rod to rotate for 90 degrees.
6. A pressure stabilizer apparatus for an engine cooling system according to claim 1, characterized in that: the control part (6) is fixedly connected with the sliding head (5) through a connecting part (19).
CN202210414811.0A 2022-04-20 2022-04-20 Pressure stabilizer for engine cooling system Active CN114517731B (en)

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Application Number Priority Date Filing Date Title
CN202210414811.0A CN114517731B (en) 2022-04-20 2022-04-20 Pressure stabilizer for engine cooling system

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Application Number Priority Date Filing Date Title
CN202210414811.0A CN114517731B (en) 2022-04-20 2022-04-20 Pressure stabilizer for engine cooling system

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CN114517731B true CN114517731B (en) 2022-07-12

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605116A (en) * 2016-01-30 2016-05-25 重庆长安汽车股份有限公司 Double-clutch coolant flow control valve
CN112983625A (en) * 2019-12-16 2021-06-18 现代自动车株式会社 Integrated liquid storage tank for vehicle
CN215256444U (en) * 2021-03-29 2021-12-21 重庆德钢科技开发有限公司 Radiator tank cover and radiator tank

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7216610B2 (en) * 2003-08-01 2007-05-15 Stant Manufacturing Inc. Pressure regulator for engine cooling system
EP3140210A4 (en) * 2014-05-05 2018-01-10 Sundram Fasteners Limited Pressure-release sealing cap

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605116A (en) * 2016-01-30 2016-05-25 重庆长安汽车股份有限公司 Double-clutch coolant flow control valve
CN112983625A (en) * 2019-12-16 2021-06-18 现代自动车株式会社 Integrated liquid storage tank for vehicle
CN215256444U (en) * 2021-03-29 2021-12-21 重庆德钢科技开发有限公司 Radiator tank cover and radiator tank

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