CN204922014U - High -low pressure stop valve - Google Patents
High -low pressure stop valve Download PDFInfo
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- CN204922014U CN204922014U CN201520586067.8U CN201520586067U CN204922014U CN 204922014 U CN204922014 U CN 204922014U CN 201520586067 U CN201520586067 U CN 201520586067U CN 204922014 U CN204922014 U CN 204922014U
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- valve
- main shaft
- main
- valve body
- valve block
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Abstract
The utility model discloses a high -low pressure stop valve, the characteristic goes up the housing to be connected for the formula of withholding with lower housing, the housing passes through the bolt fastening with the main valve body down, go up the housing and arrange reset spring and spring leaf subassembly down between the housing, the cavity reaches cavity down in the formation, it is seal chamber to go up the cavity, the cavity passes through air vent and atmosphere intercommunication down, it presses unanimously with the atmospheric pressure to guarantee the cavity of resorption literary style, the spring leaf subassembly passes through lock nut and is connected fixedly with the main shaft, last valve block and lower valve block pass through valve block lock nut and are connected with the main shaft. The main shaft up -and -down motion, the main valve body is sealed through sealed copper sheathing, and along with the pressure of control air current strengthens, reset spring's spring force is overcome to atmospheric pressure, and the main shaft moves down, and the stop valve switches on, and the pressure of control air current continues the increase, and the main shaft continues down to move, and go up the valve block and arrive the valve port, valve block and valve port upper surface press the sealing in the pressure effect down of control air current, the stop valve is closed. Simple structure, reliable, with low costs.
Description
Technical field
The utility model relates to a kind of field of internal combustion engine, particularly a kind of internal-combustion engine after-treatment system high-low voltage stop valve.
Background technique
In engine applications, for example, in order to meet the exhaust emission requirements of increasingly stringent, a lot of new technology is employed, and EGR technology is the effective measures utilizing EGR to produce to the NOx gas reduced in engine cylinder.Especially, require when diesel engine is for generating electricity that egr system stays out of under idling and rated engine speed two kinds of operating modes; Tradition uses Electric Actuated Stop Valves, controls to realize by ECU, and design of part is complicated, and cost is high.
Therefore, related domain needs the high-low voltage stop valve that a kind of structure is simple, reliable, cost is low to substitute traditional Electric Actuated Stop Valves.
Summary of the invention
The utility model, in order to meet above-mentioned reduction motor cost, ensures the problem that structure is simple, reliable, cost is low simultaneously, provides the high-low voltage stop valve that a kind of structure is simple, reliable, cost is low.
Technical solution of the present utility model is such, and a kind of high-low voltage stop valve, comprises upper encloser, upper cavity, spring lamination, lower chamber, Returnning spring, lower encioser, sealing copper sheathing, main valve body, upper valve block, lower valve, valve block locking nut, main shaft, air outlet, valve port, suction port, vent, locking nut and entrance sleeve, it is characterized in that the endoporus of locking nut (17) installs main shaft (12), entrance sleeve (18) is arranged on upper encloser (1) top, and main valve body (8) has suction port (15), main valve body (8), air outlet (13) is at main valve body (8) bottom nozzle, lower valve (10) is to coordinate with valve port (14), movable lower valve (10) is had to be separated by between suction port (15) and air outlet (13), and/or communicate, sealing copper sheathing (7) is arranged between lower encioser (6) and main valve body (8), the lower encioser (6) of main shaft (12) and the cross-shaped portion of main valve body (8) are inserted in sealing copper sheathing (7), distance is had between upper valve block (9) and lower valve (10), upper valve block (9) is in top, valve port (14) top, lower valve (10) is side under valve port (14), the bowl structure that upper encloser (1) is stamped to form by sheet metal, its top offers and controls gas entrance sleeve (18), spring lamination (3) is combined by several pieces Steel Spring Plate punching presses, spring lamination (3) and upper encloser (1) form upper cavity (2), spring lamination (3) and lower encioser (6) form lower chamber (4), locking nut (17), Returnning spring (5), lower encioser (6), the bowl structure be stamped to form by sheet metal, its bottom offers vent (16), sealing copper sheathing (7), main valve body (8), its valve body offers suction port (15), valve port (14), air outlet (13), upper valve block (9), lower valve (10), valve block locking nut (11), main shaft (12), upper encloser (1) with lower encioser (6) for fastening-pressing type is connected, lower encioser (6) and main valve body (8) are bolted, Returnning spring (5) and spring lamination (3) is arranged between upper encloser (1) and lower encioser (6), form upper cavity (2) and lower chamber (4), upper cavity (2) is seal chamber, lower chamber (4) is communicated with air by vent (16), ensure that lower chamber (4) air pressure is consistent with barometric pressure, spring lamination (3) is connected with main shaft (12) by locking nut (17), upper valve block (9) and lower valve (10) are connected and fixed by valve block locking nut (11) and main shaft (12), main shaft (12) can move up and down, and main valve body (8) is by sealing copper sheathing (7) sealing.
Described lower encioser (6) is bowl structure, and its bottom offers vent.
Described upper encloser (1) with lower encioser (6) for fastening-pressing type is connected.
Lower encioser (6) bottom offers vent (16).
Described upper cavity (2) is seal chamber, and lower chamber (4) is communicated with air by vent.
Compared with prior art, the utility model has following beneficial effect:
1. reliable, alternative Electric Actuated Stop Valves.
2. do not need ECU to control, cost is low.
3. part is few, and egr system is arranged simple, improves the reliability of engine operation.
Accompanying drawing explanation
Fig. 1 is the utility model high-low voltage stop valve scheme of installation on the engine.
Reference character: upper encloser (1), upper cavity (2), spring lamination (3), lower chamber (4), Returnning spring (5), lower encioser (6), sealing copper sheathing (7), main valve body (8), upper valve block (9), lower valve (10), valve block locking nut (11), main shaft (12), air outlet (13), valve port (14), suction port (15), vent (16), locking nut (17) and entrance sleeve (18).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Embodiment 1, as shown in Figure 1, the bowl structure that upper encloser (1) is stamped to form by sheet metal, its top offers and controls gas entrance sleeve (18); Spring lamination (3) is combined by several pieces Steel Spring Plate punching presses, and spring lamination (3) and upper encloser (1) form upper cavity (2); Spring lamination (3) and lower encioser (6) form lower chamber (4), locking nut (17), Returnning spring (5), the bowl structure that lower encioser (6) is stamped to form by sheet metal, its bottom offers vent (16), sealing copper sheathing (7), main valve body (8), and its valve body offers suction port (15), valve port (14), air outlet (13), upper valve block (9), lower valve (10), valve block locking nut (11), main shaft (12); Upper encloser (1) with lower encioser (6) for fastening-pressing type is connected; Lower encioser (6) and main valve body (8) are bolted; Arrange Returnning spring (5) and spring lamination (3) between upper encloser (1) and lower encioser (6), form upper cavity (2) and lower chamber (4); Upper cavity (2) is seal chamber; Lower chamber (4) is communicated with air by vent (16), ensures that lower chamber (4) air pressure is consistent with barometric pressure; Spring lamination (3) is connected with main shaft (12) by locking nut (17); Upper valve block (9) and lower valve (10) are connected and fixed by valve block locking nut (11) and main shaft (12); Main shaft (12) can move up and down, and main valve body (8) is by sealing copper sheathing (7) sealing; This high-low voltage stop valve working principle is: control gas entrance sleeve (18) and connect control source of the gas, in original state, lower valve (10) under the spring-force driven dual of Returnning spring (5) with valve port (14) lower surface press seal, stop valve is normally off, along with the pressure controlling air-flow strengthens, air pressure overcomes the spring force of Returnning spring (5), and main shaft (12) moves down, stop valve conducting; Along with the pressure controlling source of the gas continues to increase, main shaft (12) continues toward moving down, and upper valve block (9) arrives valve port (14), valve block (9) and valve port (14) upper surface press seal under the pressure effect controlling source of the gas, and stop valve is closed; Stop valve can be changed by the spring force changing Returnning spring (5) and open and close required pressure, thus realize high low pressure cut-off.The utility model has that structure is simple, reliable, low cost and other advantages.
Embodiment 2, and a kind of high-low voltage stop valve, comprises upper encloser, upper cavity, spring lamination, lower chamber, Returnning spring, lower encioser, sealing copper sheathing, main valve body, upper valve block, lower valve, valve block locking nut, main shaft, air outlet, valve port, suction port, vent, locking nut and entrance sleeve, it is characterized in that the endoporus of locking nut (17) installs main shaft (12), entrance sleeve (18) is arranged on upper encloser (1) top, and main valve body (8) has suction port (15), main valve body (8), air outlet (13) is at main valve body (8) bottom nozzle, lower valve (10) is to coordinate with valve port (14), movable lower valve (10) is had to be separated by between suction port (15) and air outlet (13), and/or communicate, sealing copper sheathing (7) is arranged between lower encioser (6) and main valve body (8), the lower encioser (6) of main shaft (12) and the cross-shaped portion of main valve body (8) are inserted in sealing copper sheathing (7), distance is had between upper valve block (9) and lower valve (10), upper valve block (9) is in top, valve port (14) top, lower valve (10) is side under valve port (14), the bowl structure that upper encloser (1) is stamped to form by sheet metal, its top offers and controls gas entrance sleeve (18), spring lamination (3) is combined by several pieces Steel Spring Plate punching presses, spring lamination (3) and upper encloser (1) form upper cavity (2), spring lamination (3) and lower encioser (6) form lower chamber (4), locking nut (17), Returnning spring (5), lower encioser (6), the bowl structure be stamped to form by sheet metal, its bottom offers vent (16), sealing copper sheathing (7), main valve body (8), its valve body offers suction port (15), valve port (14), air outlet (13), upper valve block (9), lower valve (10), valve block locking nut (11), main shaft (12), upper encloser (1) with lower encioser (6) for fastening-pressing type is connected, lower encioser (6) and main valve body (8) are bolted, Returnning spring (5) and spring lamination (3) is arranged between upper encloser (1) and lower encioser (6), form upper cavity (2) and lower chamber (4), upper cavity (2) is seal chamber, lower chamber (4) is communicated with air by vent (16), ensure that lower chamber (4) air pressure is consistent with barometric pressure, spring lamination (3) is connected with main shaft (12) by locking nut (17), upper valve block (9) and lower valve (10) are connected and fixed by valve block locking nut (11) and main shaft (12), main shaft (12) can move up and down, and main valve body (8) is by sealing copper sheathing (7) sealing.Described lower encioser (6) is bowl structure, and its bottom offers vent.Described upper encloser (1) with lower encioser (6) for fastening-pressing type is connected.Lower encioser (6) bottom offers vent (16).Described upper cavity (2) is seal chamber, and lower chamber (4) is communicated with air by vent.
Be only specific embodiment of the utility model above, but the utility model is not limited thereto, the change that any those skilled in the art can consider all should fall into protection domain of the present utility model.
Claims (5)
1. a high-low voltage stop valve, comprises upper encloser, upper cavity, spring lamination, lower chamber, Returnning spring, lower encioser, sealing copper sheathing, main valve body, upper valve block, lower valve, valve block locking nut, main shaft, air outlet, valve port, suction port, vent, locking nut and entrance sleeve, it is characterized in that the endoporus of locking nut (17) installs main shaft (12), entrance sleeve (18) is arranged on upper encloser (1) top, and main valve body (8) has suction port (15), main valve body (8), air outlet (13) is at main valve body (8) bottom nozzle, lower valve (10) is to coordinate with valve port (14), movable lower valve (10) is had to be separated by between suction port (15) and air outlet (13), and/or communicate, sealing copper sheathing (7) is arranged between lower encioser (6) and main valve body (8), the lower encioser (6) of main shaft (12) and the cross-shaped portion of main valve body (8) are inserted in sealing copper sheathing (7), distance is had between upper valve block (9) and lower valve (10), upper valve block (9) is in top, valve port (14) top, lower valve (10) is side under valve port (14), upper encloser (1) strikes out bowl structure by sheet metal, its top offers and controls gas entrance sleeve (18), spring lamination (3) is combined by the punching press of several multi-disc Steel Spring Plate, spring lamination (3) and upper encloser (1) form upper cavity (2), spring lamination (3) and lower encioser (6) form lower chamber (4), locking nut (17), Returnning spring (5), lower encioser (6), strike out bowl structure by sheet metal, its bottom offers vent (16), sealing copper sheathing (7), main valve body (8), its valve body offers suction port (15), valve port (14), air outlet (13), upper valve block (9), lower valve (10), valve block locking nut (11), main shaft (12), upper encloser (1) with lower encioser (6) for fastening-pressing type is connected, lower encioser (6) and main valve body (8) are bolted, Returnning spring (5) and spring lamination (3) is arranged between upper encloser (1) and lower encioser (6), form upper cavity (2) and lower chamber (4), upper cavity (2) is seal chamber, lower chamber (4) is communicated with air by vent (16), lower chamber (4) air pressure is consistent with barometric pressure, spring lamination (3) is connected with main shaft (12) by locking nut (17), upper valve block (9) and lower valve (10) are connected and fixed by valve block locking nut (11) and main shaft (12), main shaft (12) moves up and down, and main valve body (8) is by sealing copper sheathing (7) sealing.
2. according to high-low voltage stop valve according to claim 1, it is characterized in that: described lower encioser (6) is bowl structure, and its bottom offers vent.
3., according to high-low voltage stop valve according to claim 1, it is characterized in that: described upper encloser (1) with lower encioser (6) for fastening-pressing type is connected.
4., according to high-low voltage stop valve according to claim 1, it is characterized in that lower encioser (6) bottom offers vent (16).
5. according to high-low voltage stop valve according to claim 1, it is characterized in that: described upper cavity (2) is seal chamber, and lower chamber (4) is communicated with air by vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586067.8U CN204922014U (en) | 2015-08-07 | 2015-08-07 | High -low pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586067.8U CN204922014U (en) | 2015-08-07 | 2015-08-07 | High -low pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922014U true CN204922014U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520586067.8U Active CN204922014U (en) | 2015-08-07 | 2015-08-07 | High -low pressure stop valve |
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| Country | Link |
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| CN (1) | CN204922014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003661A (en) * | 2015-08-07 | 2015-10-28 | 广西玉柴机器股份有限公司 | High and low-pressure stop valve |
-
2015
- 2015-08-07 CN CN201520586067.8U patent/CN204922014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003661A (en) * | 2015-08-07 | 2015-10-28 | 广西玉柴机器股份有限公司 | High and low-pressure stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221230 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: Yuzhou District the Guangxi Zhuang Autonomous Region Yulin City flyover road 537005 No. 88 Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |