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CN1982666A - Coolant circulation system - Google Patents

Coolant circulation system Download PDF

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Publication number
CN1982666A
CN1982666A CNA2006100019427A CN200610001942A CN1982666A CN 1982666 A CN1982666 A CN 1982666A CN A2006100019427 A CNA2006100019427 A CN A2006100019427A CN 200610001942 A CN200610001942 A CN 200610001942A CN 1982666 A CN1982666 A CN 1982666A
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CN
China
Prior art keywords
liquid container
spring
radiator
circulation system
cooling liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2006100019427A
Other languages
Chinese (zh)
Inventor
申载莹
郑喜钟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co filed Critical Hyundai Motor Co
Publication of CN1982666A publication Critical patent/CN1982666A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
    • 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
    • F01P11/029Expansion reservoirs
    • 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
    • F01P11/04Arrangements of liquid pipes or hoses
    • 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
    • F01P11/14Indicating devices; Other safety devices
    • F01P11/18Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a cooling agent circulation system, with which turbulences of a cooling agent in a radiator are prevented and which improves cooling performance by connecting a radiator branch line with a top of the header tank, where air is contained. The cooling agent circulation system, in accordance with an embodiment of the invention, comprises an engine, a radiator for cooling cooling agent, which is warmed up by the engine, a header tank, which has an upper border line, which indicates the highest level of the cooling agent contained in it, and the air separates, which is contained in the cooling agent, engine branch line for connecting the header tank with the engine, and radiator branch line is appropriate to connecting header tank with radiators up, whereby a position, in which the radiator branch line is connected with the header tank by a pressure cap, over which upper border line.

Description

Coolant circulation system
The cross reference of related application
The application has required preference and the rights and interests of on December 14th, 2005 at the korean patent application 10-2005-0123100 of Korea S Department of Intellectual Property submission, and its full content is incorporated herein by reference at this.
Technical field
The present invention relates to a kind of coolant circulation system.More specifically, the present invention relates to a kind of coolant circulation system, preventing cooling liquid turbulent flow (turbulence) in radiator, and, improve cooling performance by connecting a radiator bend pipe to the liquid container top of containing air.
Background technique
Fig. 1 is a kind of schematic representation of traditional coolant circulation system.In Fig. 1, reference character 5 expression water pumps, reference character 2 expression thermostats, reference character 4 expression gearbox cooling units, and reference character 6a and 6b represent to be used for the coolant pipe of circulating cooling liquid.
Motor 1 is communicated with by coolant pipe 6a with radiator 3, makes circular flow cross the cooling liquid inflow radiator of motor 1.Thereby water pump 5 is contained in pump circulation cooling liquid in the motor, and thermostat is contained in the motor, and it is optionally opened or close according to coolant temperature, thereby optionally allows the cooling liquid inflow radiator.
Liquid container (surge tank) 9 is housed, with deaeration from the cooling liquid of coolant circulation system, liquid container 9 links to each other with motor bend pipe 10a, make and allow cooling liquid and air in the motor to flow into liquid container 9 by bend pipe 10a, liquid container 9 also links to each other with cooling liquid bend pipe 10b, makes to allow cooling liquid and air among the radiator upper box 3a to flow into liquid container 9 by this bend pipe 10b.The bottom of liquid container 9 links to each other with water pump 5 by feed pipe 6c.Reference character 10c among Fig. 2 represents spill pipe.
According to such coolant circulation system, at the early stage (when thermostat is not also opened) of engine operation, by the running of water pump 5, cooling liquid begins to circulate in motor.Thereby coolant circulation system becomes dynamical system from static system.Wherein, engine cylinder-body, cylinder head, thermostat housings etc. are by water pump 5 pressurizations.On the other hand, radiator core, gearbox cooling unit, liquid containers etc. are pressurized not.
When motor and motor bend pipe 10a pressurized, the mixture of cooling liquid and air (bubble) is transported to liquid container 9 by motor bend pipe 10a.At this moment, if thermostat 2 becomes closed condition, because that the pressure of radiator core and liquid container 9 becomes is equal, so mixture does not flow through radiator bend pipe 10b.
Thereby mixture becomes steady state in liquid container 9, then, and deaeration from cooling liquid.Then, the cooling liquid of deaeration offers motor 1 once more by feed pipe 6c.
When coolant temperature rising and thermostat 2 unlatchings, circular flow is crossed the cooling liquid inflow radiator top box 3a of motor 1, and circular flow is crossed radiator 3 inside then, and cooling liquid produces bubble therein.Cooling liquid flows back to motor 1 then.
The bubble (air) that produces in radiator 3 flows into liquid container 9 with cooling liquid by radiator bend pipe 10b.In liquid container, cause cooling liquid to expand because temperature rises, so cooling-liquid level rise the air pressurized in the cooling liquid.Then, when air pressure reached the predetermined limit pressing pressure of pressure cover 9a, pressure air was released out liquid container 9.
Thereby, can improve cooling performance, discharge because the air in the cooling liquid passes through liquid container 9, thereby do not contain air in the cooling liquid.
In such liquid container, the bottom of liquid container inside (roughly being lower half portion) has been full of cooling liquid, and top (roughly being upper half part) has been full of air, and radiator bend pipe 10b links to each other with the liquid container bottom.Therefore, in radiator bend pipe 10b, be provided with a safety check, thus the cooling liquid of preventing and air from liquid container 9 adverse currents to radiator 3.
But when safety check work was undesired, air and cooling liquid may flow back to radiator 3 from liquid container 9.Thereby, in radiator, produce turbulent flow, and cooling performance may degenerate.In addition, because air (bubble) may aggravate the corrosion (corrosion) of parts.
Above-mentionedly only be used to deepen understanding, so it may contain the information that is not formed in those of ordinary skills' known systems in this state to background of invention in the disclosed information of this background technique part.
Summary of the invention
The present invention is devoted to provide a kind of cooling recirculation system, and it has the cooling liquid of preventing turbulent flow in radiator, and by connecting a radiator bend pipe to the liquid container top of containing air, to improve the advantage of cooling performance.
In addition, the present invention has a high-performance pressure cover, and liquid container firmly is fixed on the vehicle body.
In addition, the present invention has a liquid container, and wherein cooling liquid does not contact with the mounting portion of upper tank body and lower tank, even make not sealing fully of mounting portion, cooling liquid can not spill liquid container yet.
Another aspect of the present invention has a liquid container, wherein because transparent sounding pipe can be measured the liquid level that remains cooling liquid by naked eyes at an easy rate.
Last aspect of the present invention has contactless residue cooling liquid detecting sensor, thereby measures the residue cooling liquid.
A kind of coolant circulation system according to an embodiment of the invention comprises: motor; Radiator is used to cool off the warmed-up cooling liquid of launched machine; Liquid container has the restraining line, top and separates the air that contains in the cooling liquid, the highest liquid level of cooling liquid that contains in this restraining line, top indication liquid container; Be used to connect the motor bend pipe of liquid container and motor; With the radiator bend pipe that is used to be connected liquid container and radiator, wherein the radiator bend pipe is positioned at more than the restraining line, top with the position that liquid container is connected by pressure cover.
Liquid container can comprise upper tank body and the lower tank that forms respectively, and the restraining line, top is formed on the lower tank.
Pressure cover can comprise: the lid shell has the connecting port that forms in its side; Spring guard (guard) is arranged in and covers the shell inner upper end; Latch plate is arranged in below the spring guard and with spring guard and separates, and part goes up by outstanding downwards and is formed with first spring housing portion therebetween, thereby holds first spring, and has first air hole of formation therein, thereby is communicated with the connecting port; First spring is arranged in first spring housing portion, and has top of being supported by latch plate and the bottom of being supported by spring guard; Be installed in the packing ring on the latch plate edge section; Spring seat (retainer) is arranged in latch plate below and separates with latch plate, and has the edge section with the selective exposure of packing ring lower surface; With the main protection cover, be arranged in below the spring seat and and separate with spring seat, have in second spring housing portion of intermediate portion, and be formed with second air hole therein by downward outstanding formation.Wherein, when the internal pressure of pressure cover increases; spring seat moves up and promotes packing ring; packing ring moves up and separates with the main protection cover; between packing ring and main protection cover, form exhaust space; thereby the air in the pressure cover is by second air hole; discharge exhaust space and connecting port; then; when the pressure cover internal pressure reduces; spring seat moves down and separates with packing ring, forms exhaust space between spring seat and packing ring, thereby ambient air is in succession by first air hole, breathing space and second air hole feed pressure lid.
Elastic filler (packing) can install to the bottom of main protection cover.
Can in elastic filler, form a projection.
Can on upper tank body, form a top measurement port, can on lower tank, form a bottom measurement port with corresponding to the top measurement port, and all link to each other with the bottom measurement port with the top measurement port by the transparent sounding pipe that transparent material is made.
Mounting plate can be incorporated into the top of liquid container, and this mounting plate is installed on the vehicle body by bolt.
Can form a sensor accommodating portion branch by inwardly giving prominence in the bottom of liquid container, and residue cooling liquid detecting sensor can be contained in sensor accommodating portion divides, and wherein remaining the cooling liquid detecting sensor can comprise: at the outside housing that inserts the sensor accommodating portion branch of liquid container; Be contained in the printed circuit board (PCB) in the housing; One is contained in the housing, and by the reed witch of electromagnetic field on/off; Float, it has the hole holding the sensor accommodating portion branch, and moves up and down along the sensor accommodating portion branch; With the electromagnetic element that is arranged in the float.
Description of drawings
Fig. 1 is the schematic representation of traditional cooling recirculation system.
Fig. 2 is the perspective view of traditional liquid container.
Fig. 3 is the perspective view of an illustrative embodiment's the liquid container according to the present invention.
Fig. 4 is the perspective view of illustrative embodiment's the liquid container according to the present invention.
Fig. 5 A is the sectional view of illustrative embodiment's the pressure cover according to the present invention.
Fig. 5 B is when air flows into this pressure cover inside, the sectional view of illustrative embodiment's pressure cover according to the present invention.
Fig. 5 C is when air flows out this pressure cover, the sectional view of illustrative embodiment's pressure cover according to the present invention.
Fig. 6 is the worm's eye view of illustrative embodiment's the pressure cover according to the present invention.
Fig. 7 is the perspective view of illustrative embodiment's the liquid container according to the present invention.
Fig. 8 is the cross-sectional schematic of the residue cooling liquid detecting sensor of the illustrative embodiment according to the present invention.
Fig. 9 is another cross-sectional schematic of the residue cooling liquid detecting sensor of the illustrative embodiment according to the present invention.
(description of reference numerals of primary component among the figure)
1: motor 3: radiator
20: liquid container 21: upper tank body
22: lower tank 23: hookup wire
24: restraining line, top 25: pipe box (line guide)
26: outside thread 27: the sensor accommodating portion branch
29a: float-guided part 29b: sensor stopper
30: spill pipe 40: the radiator bend pipe
50: pressure cover 51: connecting port
52: lid shell 53: internal thread
54: spring guard (guard) 55: latch plate
55a: the first spring housing portion 55b: first air hole
Spring 57 in 56: the first: packing ring
58: spring seat (retainer) 59: main protection cover
59a: the first plane 59b: second plane
59c: the 3rd plane 59d: second air hole
59e: protruding part 59f: second spring housing portion
Spring 61 in 60: the second: elastic filler (packing)
61a: projection 62: breathing space
63: exhaust space 71: strap
72: strap liner 80: mounting plate
81: bolt hole 82: bolt
90: motor bend pipe 101: the top measurement port
102: bottom measurement port 103: transparent sounding pipe
110: main-inlet 120: residue cooling liquid detecting sensor
121: float 122: magnetic element
123: sensor housing 124: printed wiring board (PCB substrate)
125: reed witch 126: epoxy resin
127: terminal 128: the warning part
129: battery
Embodiment
Describe the illustrative embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 3 is the liquid container perspective view of the illustrative embodiment according to the present invention.
According to this embodiment of the invention, liquid container 20 comprises by injection-molded upper tank body 21 and the lower tank 22 that forms respectively.Reference character 23 expression upper tank bodies 21 and lower tank 22 are installed to hookup wire together each other.
Liquid container 20 can hold the cooling liquid of predetermined maximum flow.The highest liquid level of cooling liquid that contains in the 24 expression liquid containers 20 of restraining line, top.Restraining line, top 24 is arranged in the lower tank 22.
Therefore, hookup wire 23 forms on the top of restraining line, top 24.
According to the structure that this hookup wire 23 forms on the top of restraining line, top 24, even accommodate the cooling liquid of maximum flow in the liquid container 20, cooling liquid can directly not contact with hookup wire 23 yet.Thereby, can improve the serviceability of liquid container.In addition, even not sealing fully of hookup wire, cooling liquid can not spill liquid container from hookup wire 23 yet, has only air to spill liquid container by hookup wire 23 in this case.
Radiator bend pipe 40 and spill pipe 30 install on the upper tank body 21 by a pressure cover 50 respectively.That is to say that radiator bend pipe 40 installs on the liquid container 20 in the position above the restraining line, top 24.Reference character 90 expressions connect the motor bend pipe of motor 1 and liquid container 20.
Usually, air and cooling liquid mix in liquid container 20.In liquid container 20, top is the air part that is full of air, and the bottom is the cooling liquid part that is full of cooling liquid.
Therefore, because radiator bend pipe 40 installs to the position of 24 tops, restraining line, top by pressure cover 50, as shown in Figure 3, radiator bend pipe 40 links to each other with air volume, links to each other different with volume of coolant with radiator bend pipe in traditional liquid container.
According to such structure, even the safety check work that is contained in the radiator bend pipe 40 is undesired, the cooling liquid of holding in the liquid container 20 can inflow radiator 3 yet, thereby can not damage cooling performance.
And even without safety check is installed, cooling liquid can inflow radiator yet.
In the bottom of liquid container 20, as shown in Fig. 8 and Fig. 9, form a sensor accommodating portion and divide 27, and residue cooling liquid detecting sensor 120 is contained in sensor accommodating portion and divides in 27.Residue cooling liquid detecting sensor 120 detects the cooling liquid measure, and when the cooling liquid measure is less than predetermined lower bound, operation warning part 129, thereby alerting driver cooling liquid deficiency.
Residue cooling liquid detecting sensor 120 comprises the inside element that is arranged in liquid container 20 inside and is arranged in the outside element of liquid container 20 outsides.
Inner element comprises float 121 and is arranged in the magnetic element 122 of float 121 inside.
Float 121 part therebetween is formed with intermediate hole 121a, for example, can form annular.Sensor accommodating portion divides 27 to insert in the intermediate hole 121, as shown in Figure 8.
Thereby float 121 can divide 27 to slide up and down along sensor accommodating portion.
In liquid container 20 outsides, sensor shell 123 is inserted sensor accommodating portion regularly and is divided in 27.PCB (printed wiring board) 124 and reed witch 125 are contained in the sensor shell 123.In addition, epoxy resin 126 filling sensor shells 123 are to keep the stationary state of printed wiring board 124 and reed witch 125.
In addition, terminal 127 is positioned at a side of sensor shell 123, thereby connects battery 129 and warning part 128 by joint.
When magnetic element 122 during near reed witch 125, reed witch 125 is owing to magnetic field is in disconnection (OFF) state.On the other hand, when magnetic element 122 during away from reed witch 125, because reed witch 125 is in beyond the magnetic field, so reed witch 125 is in connection (ON) state.
When liquid container 20 held the cooling liquid of maximum flow, float 121 moved up according to the cooling liquid level, and is arranged near reed witch 125.Thereby because magnetic element 122, reed witch 125 is in off state.Therefore, the warning part 128 that links to each other with battery 129 is by short circuit.
But when the cooling liquid measure reduced, float moved down, and magnetic element 122 is away from reed witch 125.When reed witch 125 was in beyond the magnetic field of magnetic element 122, reed witch 125 was in on-state, thus current direction warning part 128.
When 128 work of warning part, the driver can notice alarm and replenish cooling liquid in the correct time.
According to this contactless residue cooling liquid detecting sensor, can prevent that cooling liquid is in the leakage of the mounting portion of sensor.
In upper tank body 21, can be provided with sensor stopper 29b, as shown in Figure 8, make float 121 can not separate with sensor mounting portion 27.Can be provided with float-guided part 29a near sensor accommodating portion divides 27 in lower tank 22, thus guiding float 122.
As shown in Figure 3, mounting plate 80 is contained in liquid container 20 tops.
Mounting plate 80 is contained on the liquid container 20 by a pair of strap 71, and strap 71 liquid container 20 along the Vertical direction hoop.The strap liner of being made by elastic material 72 can be arranged between each strap 71 and the liquid container 20.Strap liner 72 is outwards being given prominence to through the local of hookup wire 23.
Mounting plate 80 and strap 71 are by bolt 82 combinations.
Be formed with bolt hole 81 on the mounting plate 80, thereby allow bolt 82 to insert, and mounting plate is fixed on the vehicle body (130) by bolt 82.The part of reference character 130 expression vehicle bodies or be fixed to a kind of fixed element on the vehicle body.
Thereby according to this embodiment of the invention, because the top and the bottom of liquid container all are fixed on the vehicle body, therefore in the process of moving, liquid container 20 can not rock, thereby can improve the serviceability of mounting structure.
Pipe box 25 is formed on the side of lower tank 22, with guiding radiator bend pipe 40 and spill pipe 30.Pipe box 25 can be integrally formed by injection-molded and lower tank 22.
When two each of managing in 30,40 are all guided by pipe box 25, can prevent that pipe from blocking owing to crooked.
As shown in Figure 7, transparent sounding pipe 103 is contained in the side of liquid container 20.Transparent sounding pipe 103 is installing on the liquid container 20 near the main-inlet 110, and is made by transparent material, PE (polyethylene) for example, thus measure ECL at an easy rate.
The top measurement port 101 of " L " shape is integrally formed with upper tank body 21, and with the bottom measurement port 102 of top measurement port 101 corresponding " L " shape, integrally formed with lower tank 22.The upper end of transparent sounding pipe 103 installs on the top measurement port 101, and its lower end installs on the bottom measurement port 102.Cooling liquid flows into transparent sounding pipe 103 by bottom measurement port 102, and transparent sounding pipe 103 is identical with ECL in the liquid container 20.Therefore, the ECL that holds in the liquid container 20 can be easy to measure by naked eyes.
Describe the structure of pressure cover 50 in detail below with reference to Fig. 4-6.Be formed with internal thread 53 in pressure cover 50, it combines with the outside thread 26 that forms in liquid container 20 sides.
Pressure cover 50 comprises that covering shell 52 is arranged in the element that covers in the shell 52 with other.Internal thread 53 forms in the inboard of lid shell 52, and connecting port 51 forms in the side of lid shell 52, thereby links to each other with radiator bend pipe 40 or spill pipe 30.
Spring guard 54 is positioned at and covers shell 52 inside top.The intermediate portion of spring guard 54 is outstanding downwards, thereby prevents that first spring 56 breaks away from.
Latch plate 55 is positioned at below the spring guard 54 and is arranged to and separates with spring guard 54.Be shaped as " U " shape thereby the intermediate portion of latch plate 55 is outstanding downwards, and form the first spring housing portion 55a.The first air hole 55b forms on the first spring housing portion 55a.
First spring 56 is arranged among the first spring housing portion 55b.Thereby the upper end of first spring 56 contacts with spring guard 54, and is supported by spring guard 54, and the lower end of first spring 56 contacts with latch plate 55, and is supported by latch plate 55.
Packing ring 57 installs on the edge of latch plate 55 lower surfaces.Packing ring 57 is preferably made by elastic material, for example rubber.
Spring seat 58 is arranged in latch plate 55 and packing ring 57 belows, and is arranged to separate with latch plate 55.The intermediate portion of spring seat 58 is outstanding downwards, thereby guides the bottom of second spring 60, and the edge section of spring seat 58 optionally contacts with packing ring 57.
Main protection cover 59 is arranged in spring seat 58 belows, and is arranged to separate with spring seat 58.
Main protection cover 59 has double-deck step shape, and the upper strata step is away from the center.Main protection cover 59 part therebetween is formed with the second spring housing portion 59f, and the bottom surface of the second spring housing portion 59f is the bottom surface of main protection cover 59.Hereinafter, the bottom surface of main protection cover 59 is called the first plane 59a.
The second plane 59b than the high step of the first plane 59a, is formed on the outside of the second spring housing portion 59f.The second air hole 59d is formed among the second plane 59b.
The 3rd plane 59c than the high step of the second plane 59b, is formed on the outside of the second plane 59b.
The part of the 3rd plane 59c optionally contacts with packing ring 57.Here, protruding part 59e can be formed on the 3rd plane 59c, and wherein, it optionally contacts with packing ring 57, thereby improves sealability.
Elastic filler 61 is installed on the bottom surface of the 3rd plane 59c, thereby improves sealability.In addition, can in elastic filler 61, form projection 61a, thereby further improve sealability.
Below, will describe the working procedure of pressure cover 50 in detail.
At first, when the internal pressure of liquid container 20, when just the internal pressure of pressure cover 50 increased, spring seat 58 upwards promoted under the effect of pressure.
When spring seat 58 moved up owing to pressure, its promoted the bottom surface of packing ring 57, and therefore, the latch plate 55 that is installed together with packing ring 57 receives power upwards.When the power that applies to packing ring 57 and latch plate 55 during greater than the support force of first spring 56, packing ring 57 and latch plate 55 move up, and packing ring 57 leaves the 3rd plane 59c of main protection cover 58.Thereby, as shown in Fig. 5 c, between packing ring 57 and the 3rd plane 59c, form exhaust space 63.
Thereby the air in the liquid container 20 is successively by the second air hole 59d, and liquid container 20 is discharged in exhaust space 63 and connecting port 51.
On the other hand, when the internal pressure of liquid container 20 reduced, because the pressure difference in liquid container 20 inboards and the outside, spring seat 58 was subjected to downward power.
If because the pressure that causes of pressure difference is greater than the support force of second spring 60, then spring seat 58 moves down.Thereby spring seat 58 separates with packing ring 57, and shown in Fig. 5 b, forms breathing space 62 between spring seat 58 and packing ring 57.
Thereby liquid container 20 air outside are successively by connecting port 51, the first air hole 55b, and the breathing space 62 and the second air hole 59d flow into liquid container 20.
According to the present invention, even the safety check work that is contained in the radiator bend pipe is undesired, the cooling liquid in the liquid container does not flow back to radiator yet, thereby can prevent to damage cooling performance.
In addition, can provide and have high performance pressure cover.
And owing to the top and the bottom of liquid container are fixed, so liquid container can more firmly be fixed on the vehicle body.
In addition, because cooling liquid does not contact with the mounting portion that upper tank body and lower tank are installed to each other, even therefore not sealing fully of mounting portion, cooling liquid can not spill liquid container yet.
In addition, because transparent sounding pipe, the residue ECL can be easy to measure by naked eyes.
In addition, because contactless residue cooling liquid detecting sensor is used for measuring the residue cooling liquid, so cooling liquid can not leaked by the sensor mounting portion.
Although the invention has been described in conjunction with existing practical embodiment, be appreciated that the present invention is not limited to disclosed embodiment.On the contrary, various spirit and improvement in the scope and the layouts of equal value that are included in hereinafter appended claim are contained in the present invention.

Claims (8)

1. coolant circulation system comprises:
Motor;
Radiator is used to cool off the warmed-up cooling liquid of launched machine;
Liquid container has the restraining line, top and separates the air that comprises in the cooling liquid, the highest liquid level of cooling liquid that contains in restraining line, the described top indication liquid container;
Be used to connect the motor bend pipe of liquid container and motor; And
Be used to connect the radiator bend pipe of liquid container and radiator, wherein
The radiator bend pipe is positioned at more than the restraining line, top with the position that liquid container is connected by pressure cover.
2, coolant circulation system according to claim 1, wherein
Liquid container comprises upper tank body and the lower tank that forms respectively, and
The restraining line, top is formed on the lower tank.
3, coolant circulation system according to claim 1, wherein
Pressure cover comprises:
The lid shell has the connecting port that forms in its side;
Spring guard is arranged in and covers the shell inner upper end;
Latch plate, be arranged in below the spring guard and and separate, on the latch plate intermediate portion, be formed with first spring housing portion downwards, thereby hold first spring by outstanding with spring guard, and have first air hole that forms therein, thereby be communicated with the connecting port;
First spring is arranged in first spring housing portion, and has top of being supported by latch plate and the bottom of being supported by spring guard;
Be installed in the packing ring on the latch plate edge section;
Spring seat is arranged in latch plate below and separates with latch plate, and has the edge section with the selective exposure of packing ring lower surface;
The main protection cover is arranged in below the spring seat and with spring seat and separates, and have in second spring housing portion of intermediate portion, and be formed with second air hole therein by downward outstanding formation, wherein:
When the internal pressure of pressure cover increases,
Spring seat moves up and promotes packing ring,
Packing ring moves up and separates with the main protection cover,
Between packing ring and main protection cover, form exhaust space, and
The air of pressure cover inside is in succession by second air hole, and discharge exhaust space and connecting port, and
When the internal pressure of pressure cover reduces,
Spring seat moves down and separates with packing ring,
Between spring seat and packing ring, form exhaust space, and
Ambient air is in succession by first air hole, breathing space and second air hole feed pressure lid.
4, coolant circulation system according to claim 3, wherein
Elastic filler installs to the bottom of main protection cover.
5, coolant circulation system according to claim 4, wherein
In elastic filler, form a projection.
6, coolant circulation system according to claim 5, wherein
The top measurement port forms on upper tank body,
The bottom measurement port forms on lower tank with corresponding to the top measurement port, and
The transparent sounding pipe of being made by transparent material all links to each other with the bottom measurement port with the top measurement port.
7, coolant circulation system according to claim 3, wherein
Mounting plate is attached to the top of liquid container, and
This mounting plate is installed on the vehicle body by bolt.
8, coolant circulation system according to claim 3, wherein
Bottom at liquid container forms the sensor accommodating portion branch by inwardly giving prominence to, and
Residue cooling liquid detecting sensor is contained in sensor accommodating portion divides, wherein
Residue cooling liquid detecting sensor comprises:
At the outside housing that inserts the sensor accommodating portion branch of liquid container;
Be contained in the printed circuit board (PCB) in the housing;
Be contained in the housing, and by the reed witch of electromagnetic field on/off;
Float has the hole holding the sensor accommodating portion branch, and moves up and down along the sensor accommodating portion branch; And
Be arranged in the electromagnetic element in the float.
CNA2006100019427A 2005-12-14 2006-01-23 Coolant circulation system Pending CN1982666A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050123100 2005-12-14
KR20050123100A KR100802924B1 (en) 2005-12-14 2005-12-14 Cooling water circulation system

Publications (1)

Publication Number Publication Date
CN1982666A true CN1982666A (en) 2007-06-20

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CNA2006100019427A Pending CN1982666A (en) 2005-12-14 2006-01-23 Coolant circulation system

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CN104061057A (en) * 2013-03-22 2014-09-24 施万登塑料股份公司 Compensation container of cooling system of internal combustion engine
CN106150668A (en) * 2014-11-26 2016-11-23 现代自动车株式会社 Control the safety cover device of radiator pressure and use its method controlling pressure
CN112983625A (en) * 2019-12-16 2021-06-18 现代自动车株式会社 Integrated liquid storage tank for vehicle

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DE102011118837A1 (en) 2011-11-18 2013-05-23 Volkswagen Aktiengesellschaft Coolant circuit of an internal combustion engine and a specific for this coolant circuit expansion tank
CN109139230B (en) * 2018-11-01 2024-01-16 宁波春华汽配有限公司 Automatic full-liquid-level gun-jumping device for plastic expansion water tank
CN111693112B (en) * 2020-05-12 2022-04-08 新疆金大禹环境科技有限公司 Small-watershed water level monitoring device based on Internet of things and use method thereof
CN113804434B (en) * 2021-09-22 2025-04-11 东毓(宁波)油压工业有限公司 Oil seal testing device
KR20240157152A (en) 2023-04-24 2024-11-01 에스. 피. 엘 (주) Manufacturing system and method for surge tank

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061057A (en) * 2013-03-22 2014-09-24 施万登塑料股份公司 Compensation container of cooling system of internal combustion engine
CN104061057B (en) * 2013-03-22 2018-01-12 施万登塑料股份公司 The compensation container of the cooling system of internal combustion engine
CN106150668A (en) * 2014-11-26 2016-11-23 现代自动车株式会社 Control the safety cover device of radiator pressure and use its method controlling pressure
CN106150668B (en) * 2014-11-26 2019-08-20 现代自动车株式会社 The method for controlling the safety cover device of radiator pressure and controlling pressure using it
CN112983625A (en) * 2019-12-16 2021-06-18 现代自动车株式会社 Integrated liquid storage tank for vehicle

Also Published As

Publication number Publication date
KR20070063149A (en) 2007-06-19
DE102006002459B4 (en) 2010-05-12
KR100802924B1 (en) 2008-02-14
DE102006002459A1 (en) 2007-06-21

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