JPS624601U - - Google Patents
Info
- Publication number
- JPS624601U JPS624601U JP9650785U JP9650785U JPS624601U JP S624601 U JPS624601 U JP S624601U JP 9650785 U JP9650785 U JP 9650785U JP 9650785 U JP9650785 U JP 9650785U JP S624601 U JPS624601 U JP S624601U
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- displacement
- lever
- converts
- chamber
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims 4
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Servomotors (AREA)
Description
第１図は本考案の一実施例を示す系統線図、第
２図は第１図の装置のブロツク図、第３図は第１
図の装置のステツプ応答の説明図、第４図は従来
装置の原理説明図、第５図は従来装置の系統線図
、第６図は第５図の装置のブロツク図である。
２……ベローズ、５……第１のノズル、８……
パイロツトリレー、９……フイードバツクシヤフ
ト、１０……バルブ、１２……レバー、１４……
第１の室、１５……第２の室、１６……ダイヤフ
ラム、１７……絞り、２０……ノズル、２２……
通気路。
Fig. 1 is a system diagram showing one embodiment of the present invention, Fig. 2 is a block diagram of the device shown in Fig. 1, and Fig. 3 is a system diagram showing an embodiment of the present invention.
4 is a diagram explaining the principle of the conventional device, FIG. 5 is a system diagram of the conventional device, and FIG. 6 is a block diagram of the device shown in FIG. 2... Bellows, 5... First nozzle, 8...
Pilot relay, 9...Feedback shaft, 10...Valve, 12...Lever, 14...
First chamber, 15...Second chamber, 16...Diaphragm, 17...Aperture, 20...Nozzle, 22...
ventilation path.
Claims (1)
のベローズの力を変位に変換するレバーと、この
レバーに近接して変位を圧力に変換する第１のノ
ズルと、この第１のノズルの背圧を増幅するパイ
ロツトリレーと、このパイロツトリレーからの出
力が印加されるバルブと、このバルブのステム変
位を前記レバーに帰還するフイードバツクシヤフ
トとを備えた空気式バルブポジシヨナにおいて、
前記入力信号が導入される第１の室と、前記第１
の室とダイヤフラムで隔てられるとともに絞りを
介して通気する第２の室と、前記ダイヤフラムの
変位を検知する第２のノズルとを備え、前記第２
のノズル背圧を前記パイロツトリレーに印加する
ようにしたことを特徴とする空気式バルブポジシ
ヨナ。 A bellows that converts a pneumatic input signal into a force, a lever that converts the force of the bellows into a displacement, a first nozzle adjacent to the lever that converts the displacement into pressure, and a back pressure of the first nozzle. A pneumatic valve positioner comprising a pilot relay for amplification, a valve to which an output from the pilot relay is applied, and a feedback shaft for feeding back stem displacement of the valve to the lever,
a first chamber into which the input signal is introduced;
a second chamber separated from the chamber by a diaphragm and ventilated through a throttle, and a second nozzle for detecting displacement of the diaphragm;
A pneumatic valve positioner, characterized in that the nozzle back pressure of 1 is applied to the pilot relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9650785U JPS624601U (en) | 1985-06-25 | 1985-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9650785U JPS624601U (en) | 1985-06-25 | 1985-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS624601U true JPS624601U (en) | 1987-01-12 |
Family
ID=30962328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9650785U Pending JPS624601U (en) | 1985-06-25 | 1985-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS624601U (en) |
-
1985
- 1985-06-25 JP JP9650785U patent/JPS624601U/ja active Pending
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