CN2874205Y - Gas large flow precision controller - Google Patents
Gas large flow precision controller Download PDFInfo
- Publication number
- CN2874205Y CN2874205Y CN 200620200002 CN200620200002U CN2874205Y CN 2874205 Y CN2874205 Y CN 2874205Y CN 200620200002 CN200620200002 CN 200620200002 CN 200620200002 U CN200620200002 U CN 200620200002U CN 2874205 Y CN2874205 Y CN 2874205Y
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- telescopic
- groove
- gas
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003345 natural gas Substances 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 8
- 239000003949 liquefied natural gas Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a device for the accurate control of great air flux. It is characterized in that: a bush-type stator is arranged in a shell body; a spiral through groove is arranged on a wall of a bush-type stator; an air inlet is connected with an air outlet via the cavity of the bush-type stator and the through groove on the wall of the bush-type stator; a revolvable rotor is arranged in the cavity of the bush-type stator; an oblique surface is set on the rotor; the rotor opens or closes up the through groove on the wall of the bush-type stator via the rotation of the oblique surface. This utility model, which has the advantages of small volume, accurate control, great flux and reliable operation, can meet the requirements for the control of both great and small air flux. Therefore, this utility model can be best applied to the fuel supply system of automobile with natural gas fuel.
Description
Technical field:
The utility model relates to a kind of big flow precise control device of gas that is used for air, oxygen, nitrogen, compressed natural gas (CNG) or LNG Liquefied natural gas (LNG), the big flow precise control device of gas in particularly a kind of fuel supply system that is applicable to gas-fueled vehicles.
Background technique:
China's compressed natural gas used as vehicle fuel (CNG) or LNG Liquefied natural gas (LNG) gas control equipment mainly adopt the electromagnetic injection valve control flow rate at present, but when being 0.1MPa～0.2Mpa, can't satisfy gas pressure the fuel user demand of gas-fueled vehicles motor, and existing electromagnetic injection valve also exists the shortcoming that flow is little, control accuracy is low, therefore separate unit gas-fueled vehicles motor must use the electromagnetic injection valve of a greater number, and existing electromagnetic injection valve also exist cost an arm and a leg, the shortcoming of easy-maintaining not, its using effect still is not ideal enough.
Summary of the invention:
The purpose of this utility model is: provide that a kind of volume is less, control accurately, the big flow precise control device of gas of big, the reliable operation of flow, both satisfied big flow requirements, also satisfy the control of small flow, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: it comprises housing (1), on housing (1), be provided with suction port (5) and air outlet (6), a telescopic stator (2) is installed in housing (1), on the barrel of telescopic stator (2), be provided with screw type groove (3), suction port (5) is connected with air outlet (6) by the inner chamber of telescopic stator (2) and the groove (3) on telescopic stator (2) barrel, a rotor that can rotate (4) is housed in the inner chamber of telescopic stator (2), be provided with inclined-plane (7) on rotor (4), rotor (4) is by the groove (3) on its inclined-plane (7) and its rotation unlatching or closure sleeve formula stator (2) barrel.
The groove width that is located at the spiral groove (3) on telescopic stator (2) barrel is that 0.4～1mm, flute length are that 50～150mm, its screw type lead angle angle are 18 °～35 °.
The matching gap that is installed in rotor (4) and telescopic stator (2) inwall in telescopic stator (2) inner chamber is 0.005～0.01mm.
On housing (1), also be equipped with and drive the motor (8) that rotor (4) rotates, and motor (8) is connected with rotor (4) by elastic coupling flexible coupling (9).
Motor (8) is the digital control type stepper motor.
Owing to adopted technique scheme, the utility model is by the control rotor rotation and by the groove on unlatching of epitrochanterian inclined-plane or the closure sleeve formula stator barrel, thereby reach the purpose of the flow of control gaseous, because groove of the present utility model is to be produced on spirally on the barrel of stator, therefore on smaller volume, can obtain long groove, can satisfy the needs of big flow, and the utility model utilize dexterously the rotor that is used with stator and on the inclined-plane, and the rotation by the step motor control rotor, thereby the size of control gaseous flow accurately, and can under 0.1MPa～0.6Mpa gas pressure, realize flow 1Kg/h～50Kg/h control, because the matching gap of rotor and stator is 0.005～0.01mm, thus its when static internal leakage be not more than 1Kg/h.Therefore, the utility model compared with prior art, the utility model has not only that volume is less, control accurately, the advantage of big, the reliable operation of flow, can satisfy big flow requirements but also have, also can satisfy the advantage of the control of small flow.The utility model is specially adapted to use in the fuel supply system of gas-fueled vehicles.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is a stator external form schematic representation of the present utility model;
Accompanying drawing 3 is a rotor external form schematic representation of the present utility model.
Embodiment:
Embodiment of the present utility model: housing (1), telescopic stator (2) and rotor (4) can adopt metallic material or plastic materials to make, but preferably adopt stainless steel material to make, on housing (1), produce suction port (5) and air outlet (6) during making, and on suction port (5) and air outlet (6), a pipe joint is installed respectively, in housing (1), install and fix upper bush formula stator (2) then, and on the barrel of telescopic stator (2), produce screw type groove (3), during spiral groove (3) on making telescopic stator (2) barrel, its groove width is controlled at 0.4～1mm, flute length is controlled at 50～150mm, its screw type lead angle angle is controlled at 18 °～35 ° scope and gets final product; During making, make the gas that enters suction port (5) can pass through inner chamber and the back of the groove (3) on telescopic stator (2) barrel (6) outflow of telescopic stator (2) from the air outlet, in the inner chamber of telescopic stator (2), load onto a rotor that can rotate (4) then, and on rotor (4), produce inclined-plane (7), make rotor (4) can by its inclined-plane (7) and its turn an angle open or closure sleeve formula stator (2) barrel on groove (3), the matching gap of rotor (4) and telescopic stator (2) inwall is controlled at the scope of 0.005～0.01mm, and the static internal leakage in the time of can guaranteeing this device busy like this is not more than 1Kg/h; On housing (1), install one then and can drive the motor (8) that rotor (4) rotates, motor (8) is connected with rotor (4) by conventional elastic coupling flexible coupling (9), in order to reach accurate control, its motor (8) preferably adopts the digital control type stepper motor, makes it can drive rotor and makes 0 °～320 ° any points and accurately rotate.
Claims (5)
1. big flow precise control device of gas, it comprises housing (1), on housing (1), be provided with suction port (5) and air outlet (6), it is characterized in that: a telescopic stator (2) is installed in housing (1), on the barrel of telescopic stator (2), be provided with screw type groove (3), suction port (5) is connected with air outlet (6) by the inner chamber of telescopic stator (2) and the groove (3) on telescopic stator (2) barrel, a rotor that can rotate (4) is housed in the inner chamber of telescopic stator (2), be provided with inclined-plane (7) on rotor (4), rotor (4) is by the groove (3) on its inclined-plane (7) and its rotation unlatching or closure sleeve formula stator (2) barrel.
2. according to the big flow precise control device of gas of claim 1, it is characterized in that: the groove width that is located at the spiral groove (3) on telescopic stator (2) barrel is that 0.4～1mm, flute length are that 50～150mm, its screw type lead angle angle are 18 °～35 °.
3. according to the big flow precise control device of gas of claim 1, it is characterized in that: the matching gap that is installed in rotor (4) and telescopic stator (2) inwall in telescopic stator (2) inner chamber is 0.005～0.01mm.
4. according to the big flow precise control device of gas of claim 1, it is characterized in that: on housing (1), also be equipped with and drive the motor (8) that rotor (4) rotates, and motor (8) is connected with rotor (4) by elastic coupling flexible coupling (9).
5. according to the big flow precise control device of gas of claim 4, it is characterized in that: motor (8) is the digital control type stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200002 CN2874205Y (en) | 2006-01-05 | 2006-01-05 | Gas large flow precision controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200002 CN2874205Y (en) | 2006-01-05 | 2006-01-05 | Gas large flow precision controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874205Y true CN2874205Y (en) | 2007-02-28 |
Family
ID=37780803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200002 Expired - Fee Related CN2874205Y (en) | 2006-01-05 | 2006-01-05 | Gas large flow precision controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874205Y (en) |
-
2006
- 2006-01-05 CN CN 200620200002 patent/CN2874205Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU HEWEI ENERGY SCIENCE CO., LTD. Free format text: FORMER OWNER: ZHOU JIGUANG Effective date: 20090814 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090814 Address after: No. 510663, Zone Eighth, zone 182, science Avenue, Science Town, Guangzhou hi tech Industrial Development Zone, Guangdong, China, 803, C2 Patentee after: Guangzhou Haowei Energy Technology Co Ltd Address before: No. 242, Beijing Road, Guizhou, Guiyang Province, China: 550001 Patentee before: Zhou Jiguang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20120105 |