CN104234816B - Diesel fork lift truck degassing type expansion tank - Google Patents
Diesel fork lift truck degassing type expansion tank Download PDFInfo
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- CN104234816B CN104234816B CN201410379830.XA CN201410379830A CN104234816B CN 104234816 B CN104234816 B CN 104234816B CN 201410379830 A CN201410379830 A CN 201410379830A CN 104234816 B CN104234816 B CN 104234816B
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- expansion tank
- filler pipe
- valve body
- pressure valve
- pipe
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The present invention relates to a kind of diesel fork lift truck degassing type expansion tank.It is an object of the invention to provide a kind of diesel fork lift truck simple in construction degassing type expansion tank, to prevent coolant from leaking, and with the function for cooling system degasification.The technical scheme is that：With expansion tank body, water injection pipe is provided with the downside of body, expansion tank body upper end is formed with filler pipe, filler pipe lower half is placed in expansion tank body, it is external that the first half is exposed to expansion tank sheet, filler pipe upper end tube wall is formed with escape pipe, filler pipe upper end is equipped with pressure cover, pressure valve and vacuum valve with escape pipe in filler pipe are communicated with pressure cover, through hole is formed with the intrinsic filling tube wall of expansion tank, in filler pipe, expansion space is formed between through hole and the filler pipe lower end, gas removing pipe is connected on expansion tank body, gas removing pipe one end connects the highest point of fork truck cooling recirculation system, expansion space in other end connection filler pipe.The present invention is suitable for diesel fork lift truck.
Description
Technical field
The present invention relates to a kind of diesel fork lift truck expansion tank, especially a kind of diesel fork lift truck degassing type expansion tank.It is suitable
For in diesel fork lift truck.
Background technology
In vehicle, expansion tank is also referred to as secondary water tank, is connected with main water box, and it is the coolant for working as main water box that it, which is acted on,
After heated, water temperature rise, volumetric expansion, so that overflow is to expansion tank from main water box for coolant, and it is swollen temporarily to store this
Swollen liquid.When cooled, temporary liquid will be returned in main water box again.
When engine just starts to start, some air in cooling system, the air in cooling system can accelerate water
The corrosion on road, influence heat transfer and internal flow, add the possibility of scuffing of cylinder bore piston ring scuffing and cylinder cap cracking.
Fig. 1 is the all-sealed upper tank structure of degassing type expansion tank in the prior art, is possessed except airway dysfunction, upper tank 1 '
It is completely isolated by dividing plate 2 ' between following radiator, only connected by standpipe 3 '.Have at the top of upper tank and be connected with engine
Breather pipe 4 ', the water injection pipe 5 ' being connected with pump entrance is arranged at bottom.Upper tank filler 6 ' is extended downwardly, empty to provide expansion
Between.There is an aperture filler Bo Jing upper positions, and supply and discharge gas is used.It is required that using pressure cap 7 '.
When adding water, anti-icing fluid flows to water injection pipe through upper tank, then enters water tank from engine water pump inlet respectively, from water
The air that pump intake enters in engine, water tank and engine is discharged to upper water by upper tank standpipe and engine breather pipe respectively
Room.In engine operation process, because recirculated water is not directly over upper tank, so will not be by the air band in upper tank
Enter cooling water, meanwhile, by standpipe and engine breather pipe, constantly the air in cooling system is removed.But this degasification
Formula expansion tank need to be made in upper header, not only increase the volume of water tank, and the structure of vehicle is influenceed especially on fork truck
Arrangement, and it is complicated, and hydroecium volume is difficult to increase.
The content of the invention
The technical problem to be solved in the present invention is：For above-mentioned problem, there is provided a kind of internal combustion fork simple in construction
Automobile-used degassing type expansion tank, to prevent coolant from leaking, and with the function for cooling system degasification.
The technical solution adopted in the present invention is：A kind of diesel fork lift truck degassing type expansion tank, with expansion tank sheet
Water injection pipe is provided with the downside of body, body, it is characterised in that：The expansion tank body upper end is formed with filler pipe, the filler pipe lower half
Portion is placed in expansion tank body, and the first half is exposed to expansion tank sheet in vitro, and filler pipe upper end tube wall is formed with escape pipe, should be added
Note pipe upper end and the pressure valve and vacuum valve being communicated with pressure cover, pressure cover in filler pipe with escape pipe, the expansion are housed
It is formed with through hole on filling tube wall in tank body, expansion space is formed in filler pipe, between through hole and the filler pipe lower end,
Gas removing pipe is connected on the expansion tank body, the gas removing pipe one end connects the highest point of fork truck cooling recirculation system, the other end
Connect expansion space in filler pipe.
The pressure cover includes the pressure valve, the vacuum valve, lid and seal cover board, and seal cover board is placed in lid
Interior, seal cover board spiral-lock is installed on below seal cover board in filler pipe upper surface, pressure valve and vacuum valve.
The pressure valve includes gim peg I, pressure valve body, pressure valve spring and sealing rubber ring I, the lid and close
Capping plate is fixed on the upper end of gim peg I, and the bottom of gim peg I is moving up and down to be set with pressure valve body, and the valve body is inversion
Bowl-shaped shell, bowl bottom position center is provided with the circular hole coordinated with gim peg I, and the rim of a bowl edge of the pressure valve body is provided with close
Seal rubber ring I, the pressure valve spring is placed on pressure valve valve outer wall, both ends of the spring respectively with seal cover board and pressure valve body
It is connected.
Sealed step is realized in the cooperation of sealing rubber ring I that the filling inside pipe wall is formed with pressure valve, and the step is located at
Below escape pipe.
The vacuum valve includes gim peg II, vacuum valve body, vacuum valve spring and sealing rubber ring II, wherein vacuum valve
Valve body is bowl-shaped shell, and setting-in is fixed in pressure valve body and surrounds closed cavity with pressure valve body, and gim peg II is passed through
On vacuum valve body Wan Di centers, the gim peg II that vacuum valve spring is placed in closed cavity and its two ends connects vacuum valve respectively
Valve body and the upper end of gim peg II, vacuum valve body bowl bottom are provided with the through hole II of some connection closed cavities, vacuum valve valve body lower portion
The sealing rubber ring II for blocking through hole II is equipped with, the sealing rubber ring II is connected the lower end of bolt II through connecting plate；It is described
Pressure valve body bowl bottom is provided with the through hole I of some connection closed cavities.
The sealing rubber ring I is fastened by pressure valve body the rim of a bowl edge with vacuum valve body the rim of a bowl edge card
The expansion tank body is welded by aluminium plate, is equipped with body in liquid level display device, body and is provided with water
Level sensor.
The expansion tank body is fixed on by water tank bearing on the inclined-plane of shield solar or lunar halo.
Described this body section of expansion tank is trapezoidal, and the inclined-plane of the body is fitted with protecting the inclined-plane of solar or lunar halo.
The opening condition of the pressure valve be expansion tank body in pressure more than 1.0~1.1bar, the vacuum valve
Opening condition is that expansion tank body negative pressure is 0~7kPa.
The beneficial effects of the invention are as follows：Compact conformation of the present invention, it is easy to observation, the present invention is not only able to automatic remove cooling
Air in system, and can also be used as expansion tank, expansion tank is enhanced using aluminium plate processing tank body
Intensity.The present invention is provided with filler pipe, and expansion space is formed in it, serves not only as the degasification in cooling system, and can be with
Make not leak during coolant expanded by heating, it is to avoid coolant loss, reduce use cost.
Brief description of the drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is the dimensional structure diagram of embodiment.
Fig. 3 is the elevational schematic view of embodiment.
Fig. 4 is the sectional view of pressure cover in embodiment.
Fig. 5 is the sectional view of pressure valve open mode pressure cover in embodiment.
Embodiment
As shown in Figure 2 and Figure 3, the present embodiment is a kind of diesel fork lift truck degassing type expansion tank, including section is trapezoidal
Expansion tank body 2, the expansion tank body is arranged on (expansion tank body 2 on the inclined-plane of shield solar or lunar halo 1 by water tank bearing 8
Fitted with protecting the inclined-plane of solar or lunar halo 1 on inclined-plane), space is saved, makes to arrange compacter, clean and tidy in fork truck hood, is easy to observation.This example
Middle expansion tank body 2 is welded using aluminium plate, its intensity and service life is superior to transparent plastics secondary cistern.It is swollen
The swollen front end of tank body 2 is equipped with inside liquid level display device 4, liquid level display device and communicated with expansion tank, so as in outside
Clearly find out the position of cooling-liquid level in expansion tank body.It is also equipped with expansion tank body 2 in expansion tank body
Equipped with level sensor 5, water level sensor circuit connection controller and alarm, when water level is less than setting position, controller
Level sensor signal is received, alarm equipment alarm is controlled.The present embodiment has both mechanically and electrically two kinds of liquid level mode of observation, not only
Level sensing efficiency is improved, and is prevented effectively from the too low caused accident of cooling-liquid level.The downside of expansion tank body 2 is provided with note
Water pipe 7, connection engine and expansion tank body 2, filling and the water circulation of cooling system for coolant in cooling system.
A filler pipe 9 is welded with the upper end of expansion tank body 2 in the present embodiment, the filler pipe lower portion is in swelling water
In case body, it is external that the first half is exposed to expansion tank sheet.Escape pipe 92, filler pipe upper end are formed with the upper end tube wall of filler pipe 9
Installing has a pressure valve 31 and a vacuum valve 32 inside pressure cover 3, pressure cover, pressure valve connects filler pipe with vacuum valve
Communicated in 9 with escape pipe 92.
As shown in figure 4, pressure cover 3 includes pressure valve 31, vacuum valve 32, lid 33 and seal cover board 34 in the present embodiment,
Seal cover board 34 is placed in lid 33, and pressure valve 31 and vacuum valve 32 are installed on below seal cover board.When seal cover board spiral-lock in
During 9 upper surface of filler pipe, pressure valve 31 and vacuum valve 32 are located in filler pipe 9.
Pressure valve 31 includes gim peg I 311, pressure valve body 312, pressure valve spring 313 and sealing rubber ring I in this example
314.Lid 33 and seal cover board 34 are fixed on the upper end of gim peg I 311, and the bottom of gim peg I is moving up and down to be set with pressure
Valve body 312, the valve body is inverted bowl-shaped shell, and bowl bottom position center is provided with the circular hole coordinated with gim peg I 311.Pressure
The rim of a bowl edge of the lower end of valve body 312 is provided with sealing rubber ring I 314, and the sealing rubber ring I is supported in the lower section of escape pipe 92, added
On the step for noting the inwall of pipe 9, sealing rubber ring I 314 can coordinate with step in filler pipe 9 realizes sealing.Pressure valve bullet in this example
Spring 313 is placed on outside pressure valve body 312, and the both ends of the spring is connected with seal cover board 34 and pressure valve body 312 respectively.
Vacuum valve 32 includes gim peg II 321, vacuum valve body 322, vacuum valve spring 323 and sealing rubber ring in this example
II 324, wherein vacuum valve body 322 is bowl-shaped shell, and setting-in is fixed in pressure valve body 312 and surrounded with pressure valve body
Closed cavity.Through the Wan Di centers of vacuum valve body 322, (upper and lower end of gim peg II is located at gim peg II 321 respectively in this example
Closed cavity is inside and outside), gim peg II can relative vacuum valve body move up and down.Vacuum valve spring 323 is placed in closed cavity
On gim peg II, both ends of the spring connects vacuum valve body and the upper end of gim peg II respectively.322 bowls of bottoms of vacuum valve body are provided with some
The through hole II 325 of closed cavity is connected, vacuum valve valve body lower portion is equipped with the sealing rubber ring II 324 for blocking through hole II, should
Sealing rubber ring II is connected the lower end of bolt II through connecting plate 326.312 bowls of bottoms of pressure valve body are provided with some connection closed cavities
Through hole I 315.Pressure valve 31 and vacuum valve 32 are integrated in the present embodiment, simple in construction, safe and reliable.
Sealing rubber ring I 314 is fastened by the rim of a bowl edge of pressure valve body 312 with the rim of a bowl edge card of vacuum valve body 322.
When coolant expanded by heating in expansion tank body 2, the pressure of the intrinsic gas of expansion tank more than 1.0~
Pressure valve 31 opens that (such as Fig. 5, the top pressure of pressure valve body 312 is less than pressure below, and compression moves up, and presses during 1.1bar
Power valve spring 313 compresses), air is discharged, and prevents the swollen bad core pipe of hypertonia in water tank；When cooling in expansion tank body
When liquid temperature degree is reduced, vacuum valve is opened (on envelope rubber ring II 324 during gas negative pressure power as little as 0~7kPa of expansion tank body
Square pressure is more than pressure below, and envelope rubber ring II 324, which is pressurized, to be moved down, and drives connecting plate 326 and gim peg II downwards, vacuum
Valve spring 323 compresses), air enters expansion tank body from the outside, prevents that the low core pipe of pressure is damaged by pressure by atmospheric pressure in water tank.
A diameter ￠ 3 through hole 901, filler pipe are offered on the tube wall of filler pipe 9 inside expansion tank body 2
Through hole 901 in 9 forms expansion space with filler pipe lower end.When coolant expanded by heating, liquid level rises, in expansion space
Air can be discharged by the through hole in filler pipe 9, and coolant will not leak, and such coolant can for a long time, without warp
Often addition coolant, has saved use cost.
Diesel fork lift truck degassing type expansion tank also has the function for cooling system degasification, expansion tank in the present embodiment
Tracheae 6 is eradicated in the front end of body 2 equipped with three, and one end of three elimination tracheaes is connected in the highest of engine and radiator coolant circulation
Place, the other end is connected to the expansion space of degassing type expansion tank.When the water pump of engine promotes coolant circulation, cooling
Air in system brings expansion space into by gas removing pipe 6, so as to realize to cooling system degasification.
Claims (6)
1. a kind of diesel fork lift truck degassing type expansion tank, with expansion tank body (2), water injection pipe (7) is provided with the downside of body,
It is characterized in that：Expansion tank body (2) upper end is provided with filler pipe (9), and the filler pipe lower half is placed in expansion tank sheet
In vivo, the first half is exposed to expansion tank sheet in vitro, and filler pipe (9) upper end tube wall is formed with the top of escape pipe (92), the filler pipe
Equipped with pressure cover (3), the internal pressure valve (31) and vacuum valve with escape pipe (92) of filler pipe (9) is communicated with pressure cover
(32) through hole (91), is provided with filler pipe (9) tube wall in the expansion tank body (2), filler pipe (9) is internal, through hole
(91) formed between the filler pipe lower end on expansion space, the expansion tank body (2) and be connected to gas removing pipe (6), the degasification
Pipe one end connects the highest point of fork truck cooling recirculation system, other end connection filler pipe (9) interior expansion space；
The pressure cover (3) includes pressure valve (31), vacuum valve (32), lid (33) and seal cover board (34), seal cover board
(34) it is placed in lid (33) and seal cover board spiral-lock is installed in filler pipe (9) upper surface, pressure valve (31) and vacuum valve (32)
Below seal cover board；
The pressure valve (31) includes gim peg I (311), pressure valve body (312), pressure valve spring (313) and caulking gum
Enclose I (314), the lid (33) and seal cover board (34) are fixed on gim peg I (311) upper end, the bottom of gim peg I can on move down
Dynamic is set with pressure valve body (312), and the valve body is inverted bowl-shaped shell, and bowl bottom position center is provided with and gim peg I
(311) circular hole coordinated, the rim of a bowl edge of the pressure valve body is provided with sealing rubber ring I (314), the pressure valve spring
(313) pressure valve body (312) outer wall is placed on, both ends of the spring is connected with seal cover board (34) and pressure valve body (312) respectively；
The vacuum valve (32) includes gim peg II (321), vacuum valve body (322), vacuum valve spring (323) and caulking gum
II (324) are enclosed, wherein vacuum valve body (322) is bowl-shaped shell, and setting-in is fixed on pressure valve body (312) inwall and and pressure
Valve body surrounds closed cavity, and gim peg II (321) passes through vacuum valve body (322) Wan Di centers, vacuum valve spring (323) set
In on the gim peg II in closed cavity and its two ends connects vacuum valve body and the upper end of gim peg II, vacuum valve body respectively
(322) bowl bottom is provided with the through hole II (325) of some connection closed cavities, and vacuum valve valve body lower portion is equipped with for blocking through hole II
Sealing rubber ring II (324), the sealing rubber ring II is connected the lower end of bolt II through connecting plate (326)；The pressure valve body
(312) bowl bottom is provided with the through hole I (315) of some connection closed cavities；
The sealing rubber ring I (314) is by pressure valve body (312) the rim of a bowl edge and vacuum valve body (322) the rim of a bowl edge card
Fasten.
2. diesel fork lift truck according to claim 1 degassing type expansion tank, it is characterised in that：In the filler pipe (9)
Sealed step is realized in sealing rubber ring I (314) cooperation that wall is formed with pressure valve (31), and the step is located under escape pipe (92)
Side.
3. diesel fork lift truck according to claim 1 degassing type expansion tank, it is characterised in that：The expansion tank body
(2) it is welded by aluminium plate, is equipped with body in liquid level display device (4), body and is provided with level sensor (5).
4. the degassing type expansion tank of the diesel fork lift truck according to claim 1 or 3, it is characterised in that：The expansion tank
Body (2) is fixed on by water tank bearing (8) on the inclined-plane of shield solar or lunar halo (1).
5. diesel fork lift truck according to claim 4 degassing type expansion tank, it is characterised in that：The expansion tank body
(2) section is trapezoidal, and the inclined-plane of the body is fitted with the inclined-plane of shield solar or lunar halo (1).
6. diesel fork lift truck according to claim 1 degassing type expansion tank, it is characterised in that：The pressure valve (31)
Opening condition be expansion tank body (2) interior pressure more than 1.0~1.1bar, the opening condition of the vacuum valve (32) is expansion
Tank body (2) negative pressure is 0~7kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379830.XA CN104234816B (en) | 2014-08-04 | 2014-08-04 | Diesel fork lift truck degassing type expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379830.XA CN104234816B (en) | 2014-08-04 | 2014-08-04 | Diesel fork lift truck degassing type expansion tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234816A CN104234816A (en) | 2014-12-24 |
| CN104234816B true CN104234816B (en) | 2017-10-13 |
Family
ID=52223599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410379830.XA Active CN104234816B (en) | 2014-08-04 | 2014-08-04 | Diesel fork lift truck degassing type expansion tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN104234816B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321224A (en) * | 2016-11-18 | 2017-01-11 | 安徽江淮汽车股份有限公司 | Filler assembly of engine cooling system |
| CN107387228A (en) * | 2017-09-11 | 2017-11-24 | 张家港保税区通勤精密机械有限公司 | A kind of adaptive engine tank pressure lid |
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| US2968421A (en) * | 1958-04-21 | 1961-01-17 | Gen Motors Corp | Safety release closures |
| US4271976A (en) * | 1979-11-13 | 1981-06-09 | E. Edelmann & Co. | Combination pressure release cooling cap and recovery of coolant |
| CN202970886U (en) * | 2012-12-21 | 2013-06-05 | 山东山工机械有限公司 | Heat exchanger with expansion tank and machine using the same |
| CN203488245U (en) * | 2013-09-16 | 2014-03-19 | 徐州重型机械有限公司 | Expansion water tank of engine cooling system and water tank cover of expansion water tank |
| CN203655413U (en) * | 2014-01-20 | 2014-06-18 | 中国重汽集团济南动力有限公司 | Expansion tank |
| CN204186462U (en) * | 2014-08-04 | 2015-03-04 | 杭叉集团股份有限公司 | Diesel fork lift truck degassing type swelling water tank |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB957130A (en) * | 1962-03-30 | 1964-05-06 | Morris Motors Ltd | Engine cooling systems |
| DE2414995A1 (en) * | 1974-03-28 | 1975-10-16 | Volkswagenwerk Ag | Spring loaded cap for I.C. engine radiator - contains excess pressure valve body and cooperating seat |
| JP3932513B2 (en) * | 2002-12-25 | 2007-06-20 | 株式会社ティラド | Radiator cap with pressure valve |
-
2014
- 2014-08-04 CN CN201410379830.XA patent/CN104234816B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2968421A (en) * | 1958-04-21 | 1961-01-17 | Gen Motors Corp | Safety release closures |
| US4271976A (en) * | 1979-11-13 | 1981-06-09 | E. Edelmann & Co. | Combination pressure release cooling cap and recovery of coolant |
| CN202970886U (en) * | 2012-12-21 | 2013-06-05 | 山东山工机械有限公司 | Heat exchanger with expansion tank and machine using the same |
| CN203488245U (en) * | 2013-09-16 | 2014-03-19 | 徐州重型机械有限公司 | Expansion water tank of engine cooling system and water tank cover of expansion water tank |
| CN203655413U (en) * | 2014-01-20 | 2014-06-18 | 中国重汽集团济南动力有限公司 | Expansion tank |
| CN204186462U (en) * | 2014-08-04 | 2015-03-04 | 杭叉集团股份有限公司 | Diesel fork lift truck degassing type swelling water tank |
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| Publication number | Publication date |
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| CN104234816A (en) | 2014-12-24 |
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