CN105003704A - Pressure control valve and pneumatic suspension - Google Patents
Pressure control valve and pneumatic suspension Download PDFInfo
- Publication number
- CN105003704A CN105003704A CN201510368926.0A CN201510368926A CN105003704A CN 105003704 A CN105003704 A CN 105003704A CN 201510368926 A CN201510368926 A CN 201510368926A CN 105003704 A CN105003704 A CN 105003704A
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- Prior art keywords
- hole
- chamber
- air
- communicated
- spool
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
Abstract
The invention provides a pressure control valve, and further provides an air suspension. The pressure control valve comprises a valve body, an air inlet valve plug, an air outlet valve plug, an air outlet valve plug, an air outlet piston and an air inlet piston, wherein the valve body is internally provided with a first baffle plate; the first baffle plate divides the interior of the valve body into an air inlet and an air outlet; a first hole and a second hole are formed in the first baffle plate; the air inlet valve plug is fixed in the air inlet; the air inlet valve plug is provided with a second baffle plate; the second baffle plate divides the air inlet valve plug into a first chamber and a second chamber, and is provided with a third hole; the first chamber is communicated with the first hole; the second chamber is communicated with the second hole; the first chamber is provided with a fourth hole; the air outlet valve plug is fixed in the air outlet, and provided with a third baffle plate; the third baffle plate divides the air outlet valve plug into a third chamber and a fourth chamber; the third baffle plate is provided with a fifth hole; the third chamber is communicated with the first hole; and the fourth chamber is communicated with the second hole, and provided with a sixth hole. With the adoption of the pressure control valve, the risk that an air bag of the air suspension is wrinkled and cracked in air charging and discharging processes can be reduced.
Description
Technical field
The present invention relates to automotive suspension and valve field, be specifically related to pressure controlled valve and air suspension.
Background technique
Existing heavy truck part adopts air suspension structure, controls the air pressure size that air suspension carries air bag, realize different carrying demands by control valve.
At present, air suspension control system both domestic and external has electronic control and conventional machinery to control two kinds.The principle of electronically controlled air suspension as shown in Figure 1, ECU (electronic control unit) sends instruction to solenoid valve, solenoid valve carries out switch according to the instruction of ECU, control air-suspension bellows inflation or venting, pressure transducer by gasbag pressure signal transmission to ECU, pressurized gas are flowed to air bag by solenoid valve by gas receiver, thus realize the various functions of air suspension.The air suspension principle that conventional machinery controls as shown in Figure 2, by induction automobile load changes such as height load sensing valves, directly controls the pressure size that gas receiver outputs to air bag, realizes the inflation/deflation of air bag.
Conventional machinery controls the gasbag pressure when exitting and is exitted completely, and air bag is shrivelled, now easily makes the capsule skin fold of air bag, causes air bag earlier period damage.Although electronic control ECU control under can exit time retain the capsule rhicnosis pleat that a part of pressure avoids air bag, when after vehicle parking power-off, control valve also can because of reveal etc. cause reservation the pressure loss, air bag fold.
In addition, no matter be that conventional machinery controls or electronic control, all reckon without the gas flow rate problem in air bag inflation/deflation process, cause air bag by quick inflation/deflation, fold place is more prone to cracking.
Summary of the invention
The object of the invention is to reduce air bag fold and cracking risk in air suspension, The embodiment provides following technological scheme for this reason:
On the one hand, provide a kind of pressure controlled valve, comprise: valve body, described valve body is tubular element, described valve inner has the first dividing plate, described valve inner is divided into suction port and air outlet by described first dividing plate, described first dividing plate has the first hole and the second hole that are communicated with described suction port and described air outlet; Air inlet spool, described air inlet spool is fixed in described suction port, described air inlet spool has second partition, described air inlet spool is separated out the first chamber and the second chamber by described second partition, described second partition has the 3rd hole being communicated with described first chamber and described second chamber, described first chamber is communicated with described first hole, and described second chamber is communicated with described second hole, and described first chamber has the 4th hole be communicated with described suction port; To give vent to anger spool, described spool of giving vent to anger is fixed in described air outlet, described spool of giving vent to anger has the 3rd dividing plate, described spool of giving vent to anger is separated out the 3rd chamber and the 4th chamber by described 3rd dividing plate, described 3rd dividing plate has the 5th hole being communicated with described 3rd chamber and described 4th chamber, described 3rd chamber is communicated with described first hole, and described 4th chamber is communicated with described second hole, and described 4th chamber has the 6th hole be communicated with described air outlet; To give vent to anger piston, described in piston of giving vent to anger be positioned at described second chamber, described in piston of giving vent to anger gone out air spring precompressed at described second hole place and closed described second hole; Inlet piston, described inlet piston is positioned at described 3rd chamber, and described inlet piston is pressed in described first hole place in advance by air inlet spring thus closes described first hole.
Preferably, the aperture in described 3rd hole and described 5th hole is less than the aperture in described first hole and described second hole.
Preferably, the aperture in described 3rd hole is less than the aperture in described 4th hole.
Preferably, the aperture in described 5th hole is less than the aperture in described 6th hole.
Preferably, described air inlet spool and described spool of giving vent to anger are separately fixed in described suction port and described air outlet by jump ring.
Preferably, the mode that described air inlet spool and described spool of giving vent to anger are threaded connection is separately fixed in described suction port and described air outlet.
On the other hand, provide a kind of air suspension, comprise pressure controlled valve as above and air bag, the air outlet of described pressure controlled valve connects described air bag.
Preferably, above-mentioned air suspension also comprises Controlling solenoid valve, and the suction port of described pressure controlled valve connects described Controlling solenoid valve.
Preferably, above-mentioned air suspension also comprises height load sensing valve, and the suction port of described pressure controlled valve connects described height load sensing valve.
The pressure controlled valve of embodiments of the invention, when needs are inflated air bag, pressurized air enters from suction port, enter on the one hand the second chamber piston of giving vent to anger and be tightly pressed in the second hole place, act on above inlet piston through the first hole on the other hand, force inlet piston to oppress air inlet spring and make it shrink, the first hole is opened, gas enters air outlet through the 3rd chamber, the 4th chamber, the 6th hole, enters air bag afterwards and realizes inflation; When needs are exitted to air bag, suction port air pressure is removed, the pressure of air outlet is greater than the pressure of suction port, entering the 3rd chamber is tightly pressed in the first hole place by inlet piston on the one hand to force the air of air outlet, act on above piston of giving vent to anger through the second hole on the other hand, force plunger forces of giving vent to anger to go out air spring and make it shrink, the second hole is opened, gas enters suction port through the second chamber, the first chamber, the 4th hole, realizes air bag deflation.And when air-suspension bellows pressure reduces to a certain extent, namely the pressure of air outlet reduces, now pressurized air is not enough to force piston compression of giving vent to anger to go out air spring, first hole, the second hole are all closed, air bag is no longer exitted, gasbag pressure no longer reduces, and achieves pressure and keeps function, reduce the generation of air bag fold.
Further, the 3rd hole and the 5th hole adopt less aperture, in inflation/deflation process, gas is from the process that high side to low side flows, experience the buffering in the 3rd hole or the 5th hole, thus make inflation/deflation process more mild, reduce the risk of air bag fold cracking.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of typical electronically controlled air suspension;
Fig. 2 is the schematic diagram of the air suspension that typical conventional machinery controls;
Fig. 3 is the structural representation of the pressure controlled valve of embodiments of the invention.
Description of symbols in figure: 1, valve body, 2, suction port jump ring, 3, air inlet spool, 4, inlet piston, 5, air inlet spring, 6, spool of giving vent to anger, 7, air outlet jump ring, 8, go out air spring, 9, piston of giving vent to anger, 10, the first dividing plate, the 11, first hole, the 12, second hole, 13, second partition, 14, the 3rd hole, the 15, the 4th hole, the 16, the 3rd dividing plate, 17, the 5th hole, 18, the 6th hole, the 19, first chamber, the 20, second chamber, 21, the 3rd chamber, 22, the 4th chamber, 100, suction port, 200, air outlet.
Embodiment
With reference to figure 3, the pressure controlled valve of the present embodiment comprises: valve body 1, suction port jump ring 2, air inlet spool 3, inlet piston 4, air inlet spring 5, spool 6 of giving vent to anger, air outlet jump ring 7, go out air spring 8, piston 9 etc. of giving vent to anger.Valve body 1 is tubular element, and it is the suction port 100 and the air outlet 200 that lay respectively at the left and right sides by valve body 1 interior separation that valve body 1 inside has the first dividing plate 10, first dividing plate 10.First dividing plate 10 has the first hole 11 and the second hole 12 being communicated with suction port 100 and air outlet 200.After air inlet spool 3 is inserted into gas port 100, be fixed in suction port 100 with suction port jump ring 2, prevent air inlet spool 3 from loosening and give up the throne.One skilled in the art will appreciate that air inlet spool 3 can also be processed with outside thread, valve body 1 can be processed with internal thread, and air inlet spool 3 screws in valve body 1 thus realizes being threaded between the two, thus is fixed in suction port 100 by air inlet spool 3.Air inlet spool 3 has second partition 13, and air inlet spool 3 is separated out the first chamber 19 and the second chamber 20 by second partition 13.Second partition 13 has the 3rd hole 14 of connection first chamber 19 and the second chamber 20.First chamber 19 is communicated with the first hole 11, and the second chamber 20 is communicated with the second hole 12.First chamber 19 has the 4th hole 15 be communicated with suction port 100, and the second chamber 20 is not communicated with suction port 100.Should be noted that, above and in ensuing description, " connection " refers in particular to direct connection, and " not being communicated with " refer in particular to and be not directly communicated with, such as the first chamber 19 is directly communicated with suction port 100 by the 4th hole 15, and there is no direct opening between the second chamber 20 and suction port 100, but the second chamber 20 can pass through the 3rd hole 14, first chamber 19, the 4th hole 15 and suction port 100 indirect communication.Similar to air inlet spool 3, spool 6 of giving vent to anger is fixed in air outlet 200 by air outlet jump ring 7 or the mode that is threaded, and spool 6 of giving vent to anger has the 3rd dividing plate the 16, three dividing plate 16 spool 6 of giving vent to anger and is separated out the 3rd chamber 21 and the 4th chamber 22.3rd dividing plate 16 has the 5th hole 17 of connection the 3rd chamber 21 and the 4th chamber 22.3rd chamber 21 is communicated with the first hole 11, and the 4th chamber 22 is communicated with the second hole 12, and the 4th chamber 22 has the 6th hole 18 be communicated with air outlet 200.Piston 9 of giving vent to anger is positioned at the second chamber 20, and piston 9 of giving vent to anger is gone out air spring 8 and is pressed in the second hole 12 place in advance thus closes the second hole 12.Inlet piston 4 is positioned at the 3rd chamber 21, and inlet piston 4 is pressed in the first hole 11 place in advance by air inlet spring 5 thus closes the first hole 11.
When the pressure controlled valve of the present embodiment is applied to air suspension, can either electronic control be adopted, conventional machinery can be adopted again to control.When adopting electronically controlled mode, the air outlet 200 of pressure controlled valve connects air bag, the suction port 100 connection control solenoid valve of pressure controlled valve; During the mode adopting conventional machinery to control, the air outlet 200 of pressure controlled valve connects air bag, and the suction port 100 of pressure controlled valve connects height load sensing valve.
The working principle of the pressure controlled valve of the present embodiment is: when needs are inflated air bag, suction port 100 side is high pressure side, side, air outlet 200 is low voltage side, pressurized air enters from suction port 100, on the one hand, partial air is through the 4th hole 15, first chamber 19, 3rd hole 14 enters the second chamber 20, in the second chamber 20, this part air piston 9 of giving vent to anger tightly is pressed in the second hole 12 place, second hole 12 is closed, on the other hand, partial air is through the 4th hole 15, first chamber 19, first hole 11 acts on above inlet piston 4, inlet piston 4 is forced to overcome the pretightening force of air inlet spring 5, compressing air inlet spring 5 makes it shrink, therefore the first hole 11 is opened, gas continues through the 3rd chamber 21, 5th hole 17, 4th chamber 22, 6th hole 18 enters air outlet 200, enter air bag afterwards and realize inflation, when needs are exitted to air bag, suction port 100 air pressure is removed, now suction port 100 side is low voltage side, air outlet 200 becomes high pressure side due to communicated air bags, the pressure of air outlet 200 is greater than the pressure of suction port 100, after pressurized air in air bag enters air outlet 200, on the one hand, portion gas is through the 6th hole 18, 4th chamber 22, 5th hole 17 enters the 3rd chamber 21, in the 3rd chamber 21, inlet piston 4 is tightly pressed in the first hole 11 place by this part air, first hole 11 is closed, on the other hand, portion gas is through the 6th hole 18, 4th chamber 22, second hole 12 acts on above piston 9 of giving vent to anger, piston 9 of giving vent to anger is forced to overcome the pretightening force air spring 8, oppressing out air spring 8 makes it shrink, second hole 12 is opened, gas continues through the second chamber 20, 3rd hole 14, first chamber 19, 4th hole 15 enters suction port 100, realize air bag deflation.And when the gasbag pressure of air suspension is reduced to a certain degree, namely the pressure of air outlet 200 reduces, pressurized air now in air bag is not enough to force piston 9 of giving vent to anger to compress air spring 8, first hole 12, hole 11, second is all closed, air bag is no longer exitted, gasbag pressure no longer reduces, and achieves pressure and keeps function, reduce the generation of air bag fold.
In the present embodiment, the 3rd hole 14 and the 5th hole 17 have minimum-value aperture, and namely both apertures are less than the aperture in the first hole 11 and the second hole 12, and the aperture in the 3rd hole 14 is less than the aperture in the 4th hole 15, and the aperture in the 5th hole 17 is less than the aperture in the 6th hole 18.Like this, in the gas replenishment process of air bag, gas is from the high pressure side of suction port 100 to the process that the low voltage side of air vent 200 flows, experience the buffering in the 3rd hole 14, gas was full of the first chamber 19, the 3rd chamber 21 with elevated pressures before this, was just full of the 4th chamber 22 subsequently, enter air bag, air pressure in 4th chamber 22 rises slowly, and in the inflation incipient stage, air bag can not occur sharply to expand; And in deflation course, gas is from the high pressure side of air vent 200 to the process that the low voltage side of suction port 100 flows, gas was full of the 4th chamber 22, second chamber 20 with elevated pressures before this, then the first chamber 19 is just full of, discharge air bag, air pressure in first chamber 19 rises also comparatively slow, and in the venting incipient stage, air bag can not occur sharply to shrink.Therefore, the inflation/deflation process of air bag is more mild, reduces the risk of air bag fold cracking.
Although the present invention is described in conjunction with above embodiment, the present invention is not limited to above-described embodiment.Those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (9)
1. a pressure controlled valve, is characterized in that, comprising:
Valve body, described valve body is tubular element, and described valve inner has the first dividing plate, and described valve inner is divided into suction port and air outlet by described first dividing plate, described first dividing plate has the first hole and the second hole that are communicated with described suction port and described air outlet;
Air inlet spool, described air inlet spool is fixed in described suction port, described air inlet spool has second partition, described air inlet spool is separated out the first chamber and the second chamber by described second partition, described second partition has the 3rd hole being communicated with described first chamber and described second chamber, described first chamber is communicated with described first hole, and described second chamber is communicated with described second hole, and described first chamber has the 4th hole be communicated with described suction port;
To give vent to anger spool, described spool of giving vent to anger is fixed in described air outlet, described spool of giving vent to anger has the 3rd dividing plate, described spool of giving vent to anger is separated out the 3rd chamber and the 4th chamber by described 3rd dividing plate, described 3rd dividing plate has the 5th hole being communicated with described 3rd chamber and described 4th chamber, described 3rd chamber is communicated with described first hole, and described 4th chamber is communicated with described second hole, and described 4th chamber has the 6th hole be communicated with described air outlet;
To give vent to anger piston, described in piston of giving vent to anger be positioned at described second chamber, described in piston of giving vent to anger gone out air spring precompressed at described second hole place and closed described second hole;
Inlet piston, described inlet piston is positioned at described 3rd chamber, and described inlet piston is pressed in described first hole place in advance by air inlet spring thus closes described first hole.
2. pressure controlled valve according to claim 1, is characterized in that, the aperture in described 3rd hole and described 5th hole is less than the aperture in described first hole and described second hole.
3. pressure controlled valve according to claim 1 and 2, is characterized in that, the aperture in described 3rd hole is less than the aperture in described 4th hole.
4. pressure controlled valve according to claim 1 and 2, is characterized in that, the aperture in described 5th hole is less than the aperture in described 6th hole.
5. pressure controlled valve according to claim 1, is characterized in that, described air inlet spool and described spool of giving vent to anger are separately fixed in described suction port and described air outlet by jump ring.
6. pressure controlled valve according to claim 1, is characterized in that, the mode that described air inlet spool and described spool of giving vent to anger are threaded connection is separately fixed in described suction port and described air outlet.
7. an air suspension, is characterized in that, comprises the pressure controlled valve as described in any one in claim 1 to 6 and air bag, and the air outlet of described pressure controlled valve connects described air bag.
8. air suspension according to claim 7, is characterized in that, also comprises Controlling solenoid valve, and the suction port of described pressure controlled valve connects described Controlling solenoid valve.
9. air suspension according to claim 7, is characterized in that, also comprise height load sensing valve, the suction port of described pressure controlled valve connects described height load sensing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368926.0A CN105003704B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368926.0A CN105003704B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003704A true CN105003704A (en) | 2015-10-28 |
| CN105003704B CN105003704B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510368926.0A Active CN105003704B (en) | 2015-06-26 | 2015-06-26 | Pressure-control valve and air suspension |
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| Country | Link |
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| CN (1) | CN105003704B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937523A (en) * | 2016-06-30 | 2016-09-14 | 江苏金荣森制冷科技有限公司 | Hydraulic heat exchange system which is provided with piston type pressure relief valve and used for hydraulic bypass |
| CN106402096A (en) * | 2016-06-30 | 2017-02-15 | 江苏金荣森制冷科技有限公司 | Operating method of hydraulic heat-exchange system of hydraulic bypass provided with piston type pressure release valve |
| WO2018045674A1 (en) * | 2016-09-06 | 2018-03-15 | 中山市新山禾技术服务有限公司 | Air reservoir with pre-pressure for air gun |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161375A (en) * | 1981-03-30 | 1982-10-04 | Toyoda Gosei Co Ltd | Valve cap |
| GB2101277A (en) * | 1981-05-28 | 1983-01-12 | Pritchard | Inflating and pressure relieving valve |
| JPH0384484U (en) * | 1989-12-20 | 1991-08-27 | ||
| CN201753792U (en) * | 2010-03-02 | 2011-03-02 | 北汽福田汽车股份有限公司 | Ventilating valve and automobile fuel tank with same |
| CN204717078U (en) * | 2015-06-26 | 2015-10-21 | 安徽江淮汽车股份有限公司 | Pressure controlled valve and air suspension |
-
2015
- 2015-06-26 CN CN201510368926.0A patent/CN105003704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161375A (en) * | 1981-03-30 | 1982-10-04 | Toyoda Gosei Co Ltd | Valve cap |
| GB2101277A (en) * | 1981-05-28 | 1983-01-12 | Pritchard | Inflating and pressure relieving valve |
| JPH0384484U (en) * | 1989-12-20 | 1991-08-27 | ||
| CN201753792U (en) * | 2010-03-02 | 2011-03-02 | 北汽福田汽车股份有限公司 | Ventilating valve and automobile fuel tank with same |
| CN204717078U (en) * | 2015-06-26 | 2015-10-21 | 安徽江淮汽车股份有限公司 | Pressure controlled valve and air suspension |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937523A (en) * | 2016-06-30 | 2016-09-14 | 江苏金荣森制冷科技有限公司 | Hydraulic heat exchange system which is provided with piston type pressure relief valve and used for hydraulic bypass |
| CN106402096A (en) * | 2016-06-30 | 2017-02-15 | 江苏金荣森制冷科技有限公司 | Operating method of hydraulic heat-exchange system of hydraulic bypass provided with piston type pressure release valve |
| WO2018045674A1 (en) * | 2016-09-06 | 2018-03-15 | 中山市新山禾技术服务有限公司 | Air reservoir with pre-pressure for air gun |
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| Publication number | Publication date |
|---|---|
| CN105003704B (en) | 2017-06-16 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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