CN201991601U - Expansion water tank cover capable of meeting requirements of pressure of high pressure cooling system of engine - Google Patents
Expansion water tank cover capable of meeting requirements of pressure of high pressure cooling system of engine Download PDFInfo
- Publication number
- CN201991601U CN201991601U CN 201120038046 CN201120038046U CN201991601U CN 201991601 U CN201991601 U CN 201991601U CN 201120038046 CN201120038046 CN 201120038046 CN 201120038046 U CN201120038046 U CN 201120038046U CN 201991601 U CN201991601 U CN 201991601U
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- pressure
- valve
- cover cap
- cap
- spool
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Abstract
The utility model discloses an expansion water tank cover capable of meeting requirements of the pressure of a high-pressure cooling system of an engine. The expansion water tank cover comprises a cover cap and a bottom cap, wherein the bottom cap is buckled with the cover cap so as to form a valve casing, a passage communicated with the external is arranged on the valve casing, a breathing hole communicated with the opening part of an expansion tank is formed in the axle center of the bottom cap, a cylindrical and cap-shaped valve core is positioned inside the valve casing and translates up and down inside the valve casing, a pressure valve spring jacking the valve core downwards is arranged between the valve core and the cover cap, and a pressure valve seal ring is arranged on the lower side of the brim of the valve core; an air hole communicated with the passage is formed in the axle center of the valve core; a vacuum valve sealing column capable of translating up and down so as to achieve the close or the connection of the air hole on the valve core is arranged inside the cap cavity of the valve core, and a vacuum valve spring for jacking the vacuum valve sealing column upwards is arranged between the edge of the bottom of the vacuum valve sealing column and the bottom cap. The utility model aims to provide the expansion tank cover capable of meeting requirements of the pressure of the high-pressure cooling system of the engine, and the expansion water tank cover has the advantages of simple structure, convenience in use and reliability in work.
Description
Technical field
The utility model relates to a kind of vehicle component swelling water case lid, furtherly be a kind of swelling water case lid that can satisfy engine high pressure cooling system pressure.
Background technique
Along with the continuous strictness of oil consumption and Abgasgesetz, motor car engine adopts compacter design and adopts bigger specific power, and cooling system not only will guarantee the heat-sink capabilities under each operating mode, also will consider engine operation in suitable temperature, to raise the efficiency.Improving cooling system pressure is to address the above problem a kind of effective method, and the pressure of cooling system is to control by the expansion case lid on the expansion tank.When cooling system pressure improved, existing expansion case lid was because sealing problem needs improvement or redesign.
The model utility content
The utility model purpose is for a kind of simple in structure, easy to use and reliable operation being provided, can satisfying the swelling water case lid of engine high pressure cooling system pressure.
The purpose of this utility model is achieved through the following technical solutions:
A kind of swelling water case lid that can satisfy engine high pressure cooling system pressure comprises cover cap and the bottom that tips upside down on the cylindrical cap shape in the cover cap, and bottom and cover cap buckle form valve casing, and valve casing is provided with and the extraneous passage that communicates.The passage that communicates with the external world on the valve casing is the breathing pipe that is arranged on the cover cap, and cover cap is provided with the breathing pipe mounting hole, and breathing pipe tightly is enclosed within the mounting hole, and breathing pipe and mounting hole inwall are provided with the O RunddichtringO.The bottom upper end is provided with draw-in groove, and cover cap inside upper part correspondence is provided with to slide and snaps in fixture block in the draw-in groove.Also be provided with seal ring between bottom and the cover cap.
The cover cap lower inside is provided with the internal thread that is connected with the swelling water tank oral area, and the intermediate seal circle is pressed on the shade of bottom, by the high pressure sealing between control intermediate seal circle impacting force realization cover cap and the swelling water tank oral area.Be provided with the vent that is communicated with the swelling water tank oral area in the bottom axle center, the spool of cylindrical cap shape places in the valve casing and upper and lower translation in valve casing, be provided with the pressure valve spring of downward roof pressure spool between spool and the cover cap, shade downside at spool is provided with the pressure valve seal ring, pressure valve seal ring seal face is provided with the protruding structure that can be fitted in the bottom inboard, guarantee that the pressure valve seal ring in the movement process of opening and closing, does not take off original position, realize reliable sealing; The spool axle center is provided with the pore with channel connection, but the vacuum valve seals post of a upper and lower translation with pore closure or conducting on the realization spool arranged in the cap chamber of spool, the vacuum valve seals column bottom has along the limit, in the vacuum valve seals column bottom along being provided with the upwards vacuum valve spring of roof pressure vacuum valve seals post between limit and the bottom.Vacuum valve seals column sealing end face is provided with the protruding structure that can be fitted in the spool inboard, guarantees that the vacuum valve seals post in the movement process of opening and closing, does not take off original position, realizes reliable sealing.
Working principle of the present utility model is: when the vapor pressure in the swelling water tank is higher than the numerical value of setting, the pressure that steam overcomes pressure valve spring promotes spool, vacuum valve seals post and moves on together, thereby get through the passage of steam row to air, pore on the spool is in closed condition at this moment, and steam is arranged to the external world with passage and breathing pipe that bottom forms through moving the back on vent, the spool.When the vapor pressure in the swelling water tank during less than certain numerical value, spool moves down at the pressure valve spring roof pressure, pressure valve seal ring and bottom sealing, external pressure is higher than the swelling water tank internal air pressure, the pressure that the pore of extraneous air this moment by the spool axle center overcomes the vacuum valve spring promotes the vacuum valve seals post and moves down, thereby get through the passage that air outside enters swelling water tank, realize expansion tank and atmospheric pressure balance.Under the normal condition, pressure valve spring withstands spool downwards makes the pressure valve seal ring be close to bottom, and the vacuum valve spring upwards withstands the vacuum valve seals post and makes itself and port sealing.
The utility model has following advantage and effect with respect to prior art: (1) bottom and cover cap buckle form valve casing, the bottom upper end is provided with draw-in groove, cover cap inside upper part correspondence is provided with to slide and snaps in fixture block in the draw-in groove, also be provided with seal ring between bottom and the cover cap, the cover cap lower inside is provided with the internal thread that is connected with the swelling water tank oral area, the intermediate seal circle is pressed on the shade of bottom, by the high pressure sealing between control intermediate seal circle impacting force realization cover cap and the swelling water tank oral area, simple in structure, can be high pressure resistant.(2) be provided with the vent that is communicated with the swelling water tank oral area in the bottom axle center, the spool of cylindrical cap shape places in the valve casing and upper and lower translation in valve casing, be provided with the pressure valve spring of downward roof pressure spool between spool and the cover cap, shade downside at spool is provided with the pressure valve seal ring, the spool axle center is provided with the pore with channel connection, but a upper and lower translation is arranged in the cap chamber of spool to realize the vacuum valve seals post of pore break-make on the spool, the vacuum valve seals column bottom has along the limit, in the vacuum valve seals column bottom along being provided with the upwards vacuum valve spring of roof pressure vacuum valve seals post between limit and the bottom, overall structure is simple, cost of production is low, can set numerical value according to the vapor pressure in the swelling water tank during use opens voluntarily or closes, the control accuracy height, easy to use.(3) pressure valve seal ring seal face is provided with protruding structure; Vacuum valve seals column sealing end face is provided with protruding structure, guarantees that like this pressure valve seal ring and vacuum valve seals post in the movement process of opening and closing, do not take off original position, realizes reliable sealing.
Description of drawings
Fig. 1 is an expansion case lid structural representation under the normal condition.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, a kind of swelling water case lid that can satisfy engine high pressure cooling system pressure, comprise cover cap 1 and the bottom 2 that tips upside down on the cylindrical cap shape in the cover cap 1, bottom 2 forms valve casing with cover cap 1 buckle, have on the cover cap 1 and the extraneous breathing pipe 10 that communicates, cover cap 1 is provided with installs the mounting hole that breathing pipe is used, and breathing pipe 10 tightly is enclosed within the mounting hole, and breathing pipe 10 is provided with O RunddichtringO 9 with the mounting hole inwall.Bottom 2 upper ends are provided with draw-in groove, and cover cap 1 inside upper part correspondence is provided with can slide the fixture block 12 that snaps in the draw-in groove.Also be provided with seal ring 11 between bottom 2 and the cover cap 1.
Claims (6)
1. swelling water case lid that can satisfy engine high pressure cooling system pressure, comprise cover cap and the bottom that tips upside down on the cylindrical cap shape in the cover cap, bottom and cover cap buckle form valve casing, valve casing is provided with and the extraneous passage that communicates, it is characterized in that: described cover cap lower inside is provided with the internal thread that is connected with the swelling water tank oral area, and the intermediate seal circle is pressed on the shade of bottom to realize the high pressure sealing between cover cap and the swelling water tank oral area; Be provided with the vent that is communicated with the swelling water tank oral area in the bottom axle center, the spool of cylindrical cap shape places in the valve casing and upper and lower translation in valve casing, be provided with the pressure valve spring of downward roof pressure spool between spool and the cover cap, be provided with the pressure valve seal ring at the shade downside of spool; The spool axle center is provided with the pore with described channel connection, but the vacuum valve seals post of a upper and lower translation with pore closure or conducting on the realization spool arranged in the cap chamber of spool, the vacuum valve seals column bottom has along the limit, in the vacuum valve seals column bottom along being provided with the upwards vacuum valve spring of roof pressure vacuum valve seals post between limit and the bottom.
2. according to the described swelling water case lid that can satisfy engine high pressure cooling system pressure of claim 1, it is characterized in that: described pressure valve seal ring seal face is provided with protruding structure.
3. according to claim 1 or the 2 described swelling water case lids that can satisfy engine high pressure cooling system pressure, it is characterized in that: described vacuum valve seals column sealing end face is provided with protruding structure.
4. according to the described swelling water case lid that can satisfy engine high pressure cooling system pressure of claim 1, it is characterized in that: the passage that communicates with the external world on the valve casing is the breathing pipe that is arranged on the cover cap, cover cap is provided with the breathing pipe mounting hole, breathing pipe tightly is enclosed within the mounting hole, and breathing pipe and mounting hole inwall are provided with the O RunddichtringO.
5. according to the described swelling water case lid that can satisfy engine high pressure cooling system pressure of claim 1, it is characterized in that: described bottom top circumference is provided with draw-in groove, and described cover cap inside upper part correspondence is provided with to slide and snaps in fixture block in the draw-in groove.
6. according to claim 1 or the 5 described swelling water case lids that can satisfy engine high pressure cooling system pressure, it is characterized in that: be provided with seal ring between described bottom and the cover cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120038046 CN201991601U (en) | 2011-02-14 | 2011-02-14 | Expansion water tank cover capable of meeting requirements of pressure of high pressure cooling system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120038046 CN201991601U (en) | 2011-02-14 | 2011-02-14 | Expansion water tank cover capable of meeting requirements of pressure of high pressure cooling system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991601U true CN201991601U (en) | 2011-09-28 |
Family
ID=44668091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120038046 Expired - Fee Related CN201991601U (en) | 2011-02-14 | 2011-02-14 | Expansion water tank cover capable of meeting requirements of pressure of high pressure cooling system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074159A (en) * | 2013-03-11 | 2015-11-18 | 株式会社T.Rad | Resinous radiator cap and mounting structure therefor |
-
2011
- 2011-02-14 CN CN 201120038046 patent/CN201991601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074159A (en) * | 2013-03-11 | 2015-11-18 | 株式会社T.Rad | Resinous radiator cap and mounting structure therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20200214 |